CN115184570B - Polluted river ecological restoration and treatment method based on plain river network area - Google Patents
Polluted river ecological restoration and treatment method based on plain river network area Download PDFInfo
- Publication number
- CN115184570B CN115184570B CN202210787182.6A CN202210787182A CN115184570B CN 115184570 B CN115184570 B CN 115184570B CN 202210787182 A CN202210787182 A CN 202210787182A CN 115184570 B CN115184570 B CN 115184570B
- Authority
- CN
- China
- Prior art keywords
- driving
- river
- pipe
- sampling
- bottle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005070 sampling Methods 0.000 claims abstract description 132
- 238000007789 sealing Methods 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 11
- 239000013049 sediment Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 230000000813 microbial effect Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 13
- 239000003344 environmental pollutant Substances 0.000 claims description 11
- 231100000719 pollutant Toxicity 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 4
- 239000002068 microbial inoculum Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000001580 bacterial effect Effects 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000007667 floating Methods 0.000 description 16
- 238000005188 flotation Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 241000186000 Bifidobacterium Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Organic contamination in water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application relates to a pollution river ecological restoration treatment method based on plain river network areas, which is applied to the technical field of river management. Which comprises the following steps: s1, setting a dam to segment a river channel, and measuring the water environment parameter of each segment of river channel; s1.1, when a water sample is collected, taking down each bottle cap, and mounting the sampling bottle on a mounting tube through a connecting mechanism; s1.2, grasping an air supply pipe, placing a sampling device into a river channel to be sampled, screwing off a sealing cap, starting a driving mechanism, and pumping river water into a sampling bottle; s1.3, pulling the air supply pipe, pulling the sampling device out of the river channel, screwing the bottle cap on, taking down the sampling bottle and storing. S2, catching garbage in the river channel; s3, cleaning river sediment; s4, detecting and analyzing the water quality sample in the S1, determining microbial treatment bacterial agents of each section of river channel, and putting the microbial treatment bacterial agents into the corresponding river channel; s5, periodically collecting water quality samples; s6, planting plants on the river beach. The application has the effect of improving the efficiency of quality of water sample.
Description
Technical Field
The application relates to the technical field of river channel treatment, in particular to a polluted river channel ecological restoration treatment method based on plain river network areas.
Background
The plain river network is responsible for flood discharge, water supply, shipping, sewage receiving, water storage irrigation, fishery cultivation, ecology and the like to a certain extent, and is an important ecological corridor and landscape in urban and rural landscapes. However, the plain river network is low in topography, the flow velocity and the section flow are correspondingly smaller, the migration, dilution and degradation of pollutants are not facilitated, and for a long time, when people develop and utilize the river channel, people pay attention to meeting various demands of the human society for water, and the demands of protecting the ecological system of the river channel are neglected, so that some river channels are seriously polluted.
The method for ecologically repairing and treating the polluted river in the plain river network area in the related technology comprises the following steps of S1, river investigation; s2, cleaning the surface of a river channel; s3, cleaning the bottom of the river channel; s4, detecting and treating; s5, management monitoring; accumulating the bottom mud cleaned in the step S3 on two sides of a river course to form a river beach; planting aquatic and wet plants on the river beach to finish ecological restoration treatment of the sediment.
In the step S1, river investigation comprises the steps of investigating the pollution discharge, sediment and water quality of a river, and sampling the sludge and sediment at the bottom of the river and water flow in the river to obtain water quality, sludge and sediment samples. When the staff in the related art samples river water, put the sample bottle into water one by one to sample, or put a sample bottle into water to sample, split charging is in several sample bottles again to supply to different water quality testing instruments and carry out water quality testing.
In view of the above-mentioned related art, the inventor considers that multiple sampling is needed for river channel detection, and multiple bottles of water samples are taken for each sampling point, and the samples are split into multiple sampling bottles after each sampling point is sampled, or the samples are sampled for multiple times at each sampling point, so that the repeated operation is more, the time is wasted, and the sampling efficiency is easily reduced.
Disclosure of Invention
In order to solve the problem that sampling is performed at each sampling point for multiple times, so that sampling efficiency is easy to reduce, the application provides a polluted river ecological restoration treatment method based on plain river network areas.
The ecological restoration treatment method for the polluted river based on plain river network areas adopts the following technical scheme:
a polluted river ecological restoration treatment method based on plain river network areas comprises the following steps:
s1, setting a simple dam to segment a river channel, measuring water environment parameters of each segment of river channel, and collecting and storing sludge, sediment and water quality samples;
s1.1, when a water sample is collected, bottle caps of all sampling bottles are taken down one by one, and the sampling bottles are arranged on an installation tube of a sampling device through a connecting mechanism;
s1.2, a worker grabs an air supply pipe of a limiting mechanism, puts a sampling device into a river channel to be sampled, screws off a sealing cap of the limiting mechanism, and starts a driving mechanism of the sampling device to pump river water into a sampling bottle;
s1.3, a worker pulls the air supply pipe, pulls out the sampling device from the river channel, screws up the bottle cap, takes down each sampling bottle one by one and puts into the sampling box for preservation.
S2, using a ship to drive a fishing net to catch the large garbage in the river channel;
s3, excavating and cleaning the bottom mud at the bottom of the river channel by using a sewage disposal ship;
s4, detecting and analyzing pollutants on the water quality samples of the river channels in the S1, determining the accumulation amount and pollution condition of the pollutants, determining microbial treatment microbial inoculum of each river channel, and putting the microbial treatment microbial inoculum into the corresponding river channel;
s5, periodically collecting water quality samples, analyzing the content change of pollutants, and evaluating pollution treatment effects;
and S6, planting aquatic and wet plants on the river beach to finish ecological restoration treatment of the sediment.
Through adopting above-mentioned technical scheme, the staff passes through coupling mechanism with a plurality of sample bottles and connects on the installation tube, and put into the river course of waiting to take a sample with sampling device, the staff twists off the sealing cap and makes stop gear remove the spacing to actuating mechanism, actuating mechanism action draws in each sample bottle simultaneously with river, then the staff pulls out sampling device from the river course, screw on the bottle lid again, take off the sample bottle one by one, accomplish the water sample and collect, install on the installation tube through a plurality of sample bottles, and draw in each sample bottle simultaneously with river through actuating mechanism, on the one hand can reduce the process of taking water with each sample bottle repeatedly put into the river course, on the other hand, the water taking in-process, the staff only need put into river course with water taking device and sample bottle, can draw in the sample bottle with river under actuating mechanism's effect in, can save staff's physical power, simplify the operation step, thereby can improve sampling efficiency.
Optionally, the sampling bottle comprises a bottle body, a sealing plate arranged in the bottle body in a sliding manner and a sealing ring sleeved on the sealing plate, and the outer periphery of the sealing ring is attached to the inner wall of the bottle body;
one end of the bottle body is communicated with a water inlet pipe, and the bottle cap is in threaded connection with one end of the water inlet pipe far away from the bottle body;
the other end of the bottle body is communicated with a water pumping pipe, one end of the water pumping pipe, which is far away from the bottle body, is inserted into the sampling device, and the sampling bottle is connected with the installation pipe through the connecting mechanism.
Through adopting above-mentioned technical scheme, the sealing washer can reduce the possibility that gas leaked from between shrouding and the bottle to when actuating mechanism action, can drive the shrouding and move towards the one end of keeping away from the inlet tube, draw in the sample bottle with river.
Optionally, the sampling device comprises a driving tube, the driving tube is communicated with the mounting tube, one end of the driving mechanism is arranged in the mounting tube, the other end of the driving mechanism is slidably arranged in the driving tube, and the driving mechanism seals the driving tube;
one end of the limiting mechanism is arranged in the driving tube, the limiting mechanism is positioned at one side of the driving mechanism, which is opposite to the sampling bottle, and the other end of the limiting mechanism penetrates through the side wall of the driving tube and extends out of the driving tube;
the mounting pipe is provided with a plurality of plug holes for the matching and the insertion of the water pumping pipes, the hole walls of the plug holes are provided with first sealing layers, the water pumping pipes are inserted into the plug holes in a one-to-one correspondence mode and are attached to the first sealing layers, and the sampling bottle is connected with the mounting pipe through the connecting mechanism.
Through adopting above-mentioned technical scheme, the leakproofness between drinking-water pipe and the spliced eye has been increased to first sealing layer to can reduce the possibility that gas leaked from between drinking-water pipe and the spliced eye, and then can drive the drive plate and remove when making actuating mechanism action.
Optionally, the connecting mechanism comprises a connecting pipe, the connecting pipe is sleeved outside the pumping pipe, the connecting pipe is connected with the bottle body, an external thread is arranged on the connecting pipe, a thread groove is arranged on the mounting pipe, and the connecting pipe is in threaded connection with the thread groove.
Through adopting above-mentioned technical scheme, through with connecting pipe threaded connection in the spread groove, realize with sample bottle demountable installation on the installation tube.
Optionally, the actuating mechanism includes the spring, slides and locates the drive plate in the drive tube and locates the sealed pad on the drive plate, the periphery of sealed pad with the inner periphery of drive tube is laminated mutually, the one end of spring is located on the installation tube, the other end of spring is located on the drive plate.
By adopting the technical scheme, the sealing gasket reduces the possibility of leakage of gas from the gap between the driving plate and the bottle body. After the limit mechanism releases the limit of the driving plate, the driving plate moves towards the direction far away from the mounting tube under the action of the elastic force of the spring, and the sealing performance between the driving tube and the mounting tube is good, so that the sealing plate can be driven to move towards the direction close to the mounting tube, and meanwhile, river water is pumped into the sampling bottle.
Optionally, the limiting mechanism comprises a limiting bag, the air supply pipe is communicated with the limiting bag, and the sealing cap is in threaded connection with one end, far away from the limiting bag, of the air supply pipe;
the inner wall of the driving pipe is provided with a limiting groove, the side wall of the driving pipe is provided with a pipe penetrating hole, the limiting bag is arranged in the limiting groove, the air supply pipe extends out of the limiting groove through the pipe penetrating hole, and sealant is arranged in the pipe penetrating hole.
Through adopting above-mentioned technical scheme, before not putting into the river course with the sample bottle, spacing bag is in the inflation state, and the drive plate supports tightly on spacing bag to can play the effect of spacing to the drive plate. When placing the sample bottle into the river course and taking a sample, the staff unscrews the sealing cap from the air supply pipe, releases the gas in the spacing bag, and spacing bag shrink returns to the spacing inslot, releases the spacing to the drive plate to make the drive plate remove towards the direction of keeping away from the installation tube under the elasticity effect of spring, and then can drive the shrouding with river water suction sample bottle in.
Optionally, the one end intercommunication that the actuating tube was kept away from the installation tube has the flotation bladder, be equipped with in the actuating tube and be used for triggering the flotation bladder inflation trigger mechanism, trigger mechanism's one end is located on the drive plate, trigger mechanism's the other end is located on the inner wall of actuating tube.
Through adopting above-mentioned technical scheme, when the drive plate moves towards the direction of keeping away from the mounting tube, also compresses the gas in the drive tube, when the sample bottle takes out full, trigger mechanism starts, makes this partial gas fill the flotation cell, makes the flotation cell inflation drive the sample bottle come-up. Therefore, the sampling bottle can float upwards after being filled, and a worker is not required to judge whether the sampling bottle is filled, so that the sampling efficiency can be improved.
Optionally, the triggering mechanism includes a base, a triggering plate, a torsion spring and a triggering rod, wherein the base is arranged on the inner wall of the driving tube, one end of the torsion spring is arranged on the base, the other end of the torsion spring is arranged on the triggering plate, the triggering rod is arranged on the driving plate, and the triggering rod is abutted against the triggering plate;
the trigger plate with be equipped with between the drive plate and be used for spacing the spacing ring of trigger plate, the spacing ring is located on the drive pipe, the spacing ring orientation the one end of trigger plate is equipped with the sealing ring, the base supports tightly on the sealing ring.
Through adopting above-mentioned technical scheme, under the torsion effect of torsional spring, can make the trigger plate rotate towards the direction of keeping away from the flotation cell to under the spacing effect of spacing ring, make the trigger plate can seal the drive pipe, in order to reduce the drive plate and in the removal in-process, compress into the flotation cell with gas and make the possibility of flotation cell come-up in the flotation cell, thereby make the sampling bottle not take out full and just come-up the possibility.
The trigger rod is fixed on the drive plate, and when the sampling bottle is fully drawn, the drive plate drives the trigger rod to push the trigger plate at the same time, so that the trigger plate rotates, gas in the drive tube can enter the floating bag, and the floating bag expands to drive the sampling bottle to float upwards.
Optionally, the driving tube includes a first driving section, a rotating section and a second driving section, both ends of the rotating section are respectively provided with a rotating head, the first driving section and the second driving section are respectively provided with a rotating groove for the rotating heads to rotate in a matching way, the bottom of each rotating groove is provided with a second sealing layer, and the rotating heads are arranged in the rotating grooves and are abutted against the second sealing layers;
the first driving section is communicated with the mounting pipe, the limiting groove is formed in the first driving section, the limiting ring is arranged on the rotating section, the base is arranged on the second driving section, and the second driving section is communicated with the floating bag;
the limiting ring is provided with a first through hole, the trigger plate is provided with a second through hole, the sealing ring is provided with a third through hole, and when the trigger plate is abutted to the sealing ring, the second through hole is overlapped with the third through hole and is not overlapped with the first through hole.
Through adopting above-mentioned technical scheme, through rotating head and rotating the groove and cooperateing, make the section of rotating can drive the rotation of swivel becket, also can reduce the possibility that gas leaked from rotating between head and the groove through the second sealing layer simultaneously. After the staff puts the sample bottle into the bin, rotate the section of rotating and make through-hole one and through-hole two align, then extrude the flotation cell, make the gaseous drive pipe that gets into of flotation cell through-hole one and through-hole two, promote the drive board and reset. And then the inflator is used for inflating the air supply pipe, so that the limiting bag is expanded to limit the driving plate, and the driving plate is convenient to continue to use next time.
Optionally, a sealing rod is arranged on the triggering rod, and the sealing rod is inserted into the first through hole in a matching way.
Through adopting above-mentioned technical scheme, through the dead lever shutoff through-hole one, make the gas in the drive pipe can get into the flotation cell more fast to can make the flotation cell expand more fast, come-up.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by installing a plurality of sampling bottles on the installation pipe and sucking river water into each sampling bottle through the driving mechanism, the process of repeatedly putting each sampling bottle into a river channel for water taking in the sampling process can be reduced, and thus, the time can be saved;
2. in the water taking process, a worker only needs to put the water taking device and the sampling bottle into a river channel, and river water can be pumped into the sampling bottle under the action of the driving mechanism, so that the physical strength of the worker can be saved, the operation steps are simplified, and the sampling efficiency can be improved;
3. when the sampling bottle is full, the trigger mechanism is started, so that the part of gas is filled into the floating bag, the floating bag is inflated to drive the sampling bottle to float upwards, the sampling bottle can float upwards after being full, a worker is not required to judge whether the sampling bottle is full, and the sampling efficiency can be improved.
Drawings
FIG. 1 is a schematic view of a sample bottle in an embodiment of the present application.
Fig. 2 is a cross-sectional view of a sample bottle in an embodiment of the present application.
FIG. 3 is a schematic diagram of a sampling device according to an embodiment of the present application.
Fig. 4 is a cross-sectional view of a sampling device in an embodiment of the present application.
Fig. 5 is a schematic view of the portion a in fig. 4.
Fig. 6 is a schematic view of portion B of fig. 4.
Fig. 7 is a cross-sectional view of another view of a sampling device in an embodiment of the present application.
Fig. 8 is a schematic view of portion C of fig. 4.
Reference numerals: 1. sampling bottle; 11. a bottle body; 12. a sealing plate; 13. a seal ring; 14. a water inlet pipe; 15. a bottle cap; 16. a water pumping pipe; 2. a sampling device; 21. installing a pipe; 211. a plug hole; 212. a thread groove; 22. a driving tube; 221. a first drive section; 2211. a limit groove; 2212. penetrating the pipe hole; 2213. a rotating groove; 222. a rotating section; 223. a second drive section; 224. a rotating head; 23. a driving mechanism; 231. a spring; 232. a driving plate; 233. a sealing gasket; 24. a limiting mechanism; 241. a spacing bag; 242. an air supply pipe; 243. a sealing cap; 25. a first sealing layer; 26. a buoyancy bag; 27. a trigger mechanism; 271. a base; 272. a trigger plate; 2721. a second through hole; 273. a torsion spring; 274. a trigger lever; 28. a second sealing layer; 29. a limiting ring; 291. a first through hole; 210. a seal ring; 2101. a third through hole; 3. a connecting mechanism; 31. a connecting pipe; 311. an external thread; 5. and a sealing rod.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-8.
The embodiment of the application discloses a polluted river ecological restoration treatment method based on plain river network areas.
Referring to fig. 1, 2 and 3, the ecological restoration treatment method of the polluted river based on the plain river network area uses a sampling device 2 to be matched with a sampling bottle 1 for sampling when a water sample is collected. The sampling bottle 1 comprises a bottle body 11, a sealing plate 12, a sealing ring 13, a water inlet pipe 14 and a water suction pipe 16, wherein the water inlet pipe 14 is communicated with one end of the bottle body 11, one end of the water inlet pipe 14, which is far away from the bottle body 11, is connected with a bottle cap 15 in a threaded manner, the water suction pipe 16 is connected with the other end of the bottle body 11, the water suction pipe 16 is inserted into the sampling device 2, and the bottle body 11 and the sampling device 2 are detachably connected through a connecting mechanism 3.
The shrouding 12 slides and sets up in bottle 11, and sealing washer 13 cover is established on shrouding 12, and the outer periphery of sealing washer 13 is laminated with the inner wall of bottle 11 mutually, and in this embodiment, sealing washer 13 adopts the rubber material. In the initial state, the sealing plate 12 is close to the inlet pipe, and after the sampling device 2 acts, the sealing plate 12 is driven to move towards the direction close to the water suction pipe 16, and the bottle body 11 is filled with river water. The bottle cap 15 is screwed on the water inlet pipe 14, the bottle body 11 is separated from the sampling device 2, and the possibility of water sample flowing out of the water pumping pipe 16 can be reduced through the sealing plate 12.
Referring to fig. 3 and 4, the sampling device 2 includes a mounting tube 21, a drive tube 22, a float bladder 26, a drive mechanism 23 for driving the movement of the seal plate 12, a limiting mechanism 24 for limiting the drive mechanism 23, and a trigger mechanism 27 for triggering the expansion of the float bladder 26.
Referring to fig. 4 and 5, the driving tube 22 is composed of a first driving section 221, a rotating section 222, a second driving section 223 and rotating heads 224 integrally formed at two ends of the rotating section 222, the first driving section 221 and the second driving section 223 are respectively provided with a rotating groove 2213 for the rotating heads 224 to rotate in a matched manner, the bottoms of the rotating grooves 2213 are adhered with a second sealing layer 28 made of rubber material, the rotating heads 224 are arranged in the rotating grooves 2213 and are abutted against the second sealing layer 28, the rotating heads 224 are matched with the rotating grooves 2213 through the rotating heads 224, so that the rotating heads 224 can rotate, and the sealing effect between the rotating heads 224 and the rotating grooves 2213 can be increased through the second sealing layer 28.
Referring to fig. 4 and 5, the driving tube 22 is filled with gas, the first driving section 221 is communicated with the mounting tube 21, the second driving section 223 is communicated with the float bag 26, the sampling bottle 1 is communicated with the mounting tube 21, one end of the driving mechanism 23 is fixed in the mounting tube 21, and the other end of the driving mechanism 23 is slidably arranged in the first driving tube 22 and seals the first driving tube 22. One end of the trigger mechanism 27 is fixed on the driving mechanism 23, and moves synchronously with the driving mechanism 23, and the other end of the trigger mechanism 27 is installed in the second driving section 223.
Referring to fig. 4 and 6, the limiting mechanism 24 includes a limiting bag 241, an air supply pipe 242 connected to the limiting bag 241, and a sealing cap 243 screwed to the air supply pipe 242, wherein the limiting bag 241 and the air supply pipe 242 are filled with air, and in this embodiment, the limiting bag 241, the air supply pipe 242, and the sealing cap 243 are made of rubber materials. A limiting groove 2211 is formed in the periphery of the inner wall of the first driving tube 22, a through hole 2212 is formed in the side wall of the first driving tube 22, and the through hole 2212 is communicated with the limiting groove 2211. The spacing bag 241 bonds in the tank bottom of spacing bag 241, and air supply pipe 242 passes poling hole 2212, and is equipped with the sealant in poling hole 2212, can reduce the possibility that the gas in the gas storage tube leaked through spacing bag 241 and poling hole 2212 through the sealant. When the limiting capsule 241 is in the inflated state, the end of the driving mechanism 23 far away from the mounting tube 21 abuts against the limiting capsule 241, so that the driving mechanism 23 can be limited.
Referring to fig. 4 and 5, the driving mechanism 23 is composed of a spring 231, a driving plate 232 slidably disposed in the first driving section 221, and a gasket 233 bonded to the driving plate 232, the gasket 233 made of rubber is located on a side of the driving plate 232 facing away from the mounting tube 21, and an outer periphery of the gasket 233 is bonded to an inner periphery of the first driving section 221 to improve sealability between the driving plate 232 and the first driving section 221. One end of the spring 231 is fixed on the mounting tube 21, the other end of the spring 231 is fixed on one side of the driving plate 232, which is opposite to the sealing pad 233, and before sampling, the driving plate 232 abuts against the limiting bag 241 under the action of the elasticity of the spring 231.
When the sampling device 2 is required to be placed in the river channel for sampling, the first driving section 221 is taken as a starting point, the specified length is measured on the measuring air supply pipe 242, the worker grasps the position of the air supply pipe 242, the sampling device 2 and the sampling bottle 1 are placed in the river channel, the purpose that the sampling bottle is placed to the specified depth can be achieved, then the worker unscrews the sealing cap 243, the air in the limiting bag 241 is released through the air supply pipe 242, and the limiting bag 241 is contracted into the limiting groove 2211. Meanwhile, the driving plate 232 moves away from the mounting tube 21 under the action of the elastic force of the spring 231, and because the sealing performance in the first driving tube 22, the mounting tube 21 and the bottle body 11 is good, when the driving plate 232 moves, the sealing plate 12 moves towards the direction close to the mounting tube 21 under the action of gas, and meanwhile, river water is pumped into the sampling bottle 1. Then, the worker lifts the gas supply pipe 242 to lift the sampling device 2 and the sampling bottle 1 out of the river channel, tightens the bottle cap 15, and then takes the sampling bottle 1 off the mounting pipe 21 and puts the sampling bottle into the sampling box for storage, thereby completing sampling.
By installing the plurality of sampling bottles 1 on the installation pipe 21 and sucking the river water into each sampling bottle 1 simultaneously by the cooperation of the driving mechanism 23 and the sealing plate 12, the process of repeatedly putting each sampling bottle 1 into the river channel for water taking in the sampling process can be reduced, and the time can be saved. Meanwhile, in the water taking process, workers only need to put the sampling device 2 and the sampling bottle 1 into a river channel, river water can be pumped into the sampling bottle 1 under the action of the driving mechanism 23, physical strength of the workers can be saved, operation steps are simplified, and accordingly sampling efficiency can be improved.
Referring to fig. 4 and 5, the trigger mechanism 27 includes a base 271, a trigger plate 272, a torsion spring 273, and a trigger lever 274, the trigger lever 274 being fixed to a side of the drive plate 232 facing away from the spring 231. The inner wall of the rotating segment 222 is fixed with a limiting ring 29, one side of the limiting ring 29, which is opposite to the driving plate 232, is adhered with a sealing ring 210 made of rubber, the base 271 is fixed on the inner wall of the second driving segment 223, one end of the torsion spring 273 is fixed on the base 271, the other end of the torsion spring 273 is fixed on the trigger plate 272, and under the torsion force of the torsion spring 273, the trigger plate 272 rotates in a direction away from the floating bag 26 and abuts against the sealing ring 210, so that the second driving segment 223 can be sealed.
The driving plate 232 moves away from the mounting tube 21 and pushes the gas in the first driving section 221 towards the direction approaching the float bag 26, so that the possibility that the driving plate 232 supplies the gas into the float bag 26 to expand the float bag 26 to drive the sampling bottle 1 to float upwards, but the sampling bottle 1 is not full, can be reduced through the triggering plate 272.
Referring to fig. 4 and 5, after the sampling bottle 1 is fully drawn, the driving plate 232 drives the trigger rod 274 to push the trigger plate 272, so that the trigger plate 272 rotates in a direction away from the limiting ring 29, and the gas in the first driving section 221 can enter the float bag 26, so that the float bag 26 expands to drive the sampling bottle 1 to float upwards. Therefore, the sampling bottle 1 can float upwards after being filled, and a worker is not required to judge whether the sampling bottle 1 is filled, so that the sampling efficiency can be improved.
Referring to fig. 4 and 7, in addition, a first through hole 291 is formed in the stop collar 29, a second through hole 2721 is formed in the trigger plate 272, a third through hole 2101 is formed in the seal ring 210, when the trigger plate 272 abuts against the seal ring 210, the second through hole 2721 is communicated with the third through hole 2101, and the second through hole 2721 is not communicated with the first through hole 291 and the second through hole 2721. The trigger rod 274 is fixed with the sealing rod 5, when the trigger rod 274 pushes the trigger plate 272 to rotate in a direction away from the limiting ring 29, the sealing rod 5 is inserted into the first through hole 291 in a matching way, so that the gas in the first driving section 221 can enter the floating bag 26 more quickly, and the floating bag 26 can expand more quickly and float upwards.
In this embodiment, the first driving section 221, the rotating section 222 and the second driving section 223 are made of transparent materials, so that the staff can observe the first through hole 291, the second through hole 2721 and the third through hole 2101 conveniently. When the sampling is completed, the worker presses the float bag 26 to move the driving plate 232 away from the float bag 26, and the sealing rod 5 is separated from the first through hole 291, and the trigger plate 272 abuts against the sealing ring 210. Then, the worker rotates the rotating section 222 to enable the first through hole 291, the second through hole 2721 and the third through hole 2101 to coincide, and then presses the floating bag 26 to squeeze the gas in the floating bag 26 into the first driving section 221, so that the driving plate 232 is reset. And then the inflator supplies air into the air supply pipe 242, the sealing cap 243 is screwed down, the limiting bag 241 is expanded to abut against the driving plate 232, and the driving plate 232 is limited, so that the next sampling is facilitated.
Referring to fig. 3 and 8, the connection mechanism 3 includes a connection pipe 31, an external thread 311 is provided on an outer wall of the connection pipe 31, and the connection pipe 31 is sleeved on an outer side of the pumping pipe 16 and fixedly connected with the bottle 11. The mounting tube 21 is provided with a plug hole 211 for the matching insertion of the water pumping tube 16, the wall of the plug hole 211 is adhered with a first sealing layer 25 made of rubber, and the mounting tube 21 is provided with a thread groove 212 for the threaded connection of the connecting tube 31. The water pumping pipes 16 are inserted into the plug holes 211 in a one-to-one correspondence manner and are attached to the first sealing layer 25, and the sealing performance between the water pumping pipes 16 and the plug holes 211 is improved by the first sealing layer 25, so that the possibility of leakage of gas from the water pumping pipes 16 to the plug holes 211 can be reduced, and the driving plate 232 can be driven to move when the driving mechanism 23 acts. The detachable mounting of the sampling bottle 1 on the mounting tube 21 is achieved by screwing the connection tube 31 in the connection groove.
The specific sampling steps using the sampling bottle 1 and the sampling device 2 are as follows:
s1, placing a simple dam in a river channel to segment the river channel, measuring water environment parameters of each segment of river channel, such as the length of the river channel, the flow rate of river water and the like, and collecting and storing bottom mud and water quality samples;
s1.1, when water samples are collected, the bottle caps 15 of all the sampling bottles 1 are taken down one by one, and the connecting pipes 31 are connected into the thread grooves 212 in a threaded manner;
s1.2, a worker takes a first driving section 221 as a starting point, a specified length is measured on a measuring air supply pipe 242, for example, two meters, the worker holds the air supply pipe 242 for two meters, the sampling device 2 and the sampling bottle 1 are placed in a river channel, then the sampling device 2 and the sampling bottle 1 are placed in the river channel, a sealing cap 243 is screwed off, gas in a limiting bag 241 is released from the air supply pipe 242, the limiting bag 241 is contracted, a driving plate 232 moves in a direction away from an installation pipe 21 under the action of a spring 231, and meanwhile, a sealing plate 12 is driven to move, so that river water is pumped into the sampling bottle 1;
s1.3, after the sampling bottle 1 is fully drawn, the driving plate 232 drives the trigger rod 274 to push the trigger plate 272, so that the trigger plate 272 rotates, gas in the first driving section 221 enters the floating bag 26, the floating bag 26 is expanded to drive the sampling bottle 1 to float upwards, a worker pulls the gas supply pipe 242, the sampling device 2 and the sampling bottle 1 are pulled out of a river channel, the bottle caps 15 are screwed on, and each sampling bottle 1 is taken down one by one and put into a sampling box for storage;
s1.4, a worker extrudes the floating bag 26 to enable the driving plate 232 to move in a direction away from the floating bag 26, meanwhile, the sealing rod 5 is separated from the first through hole 291, the trigger plate 272 is abutted against the sealing ring 210, then the worker rotates the rotating section 222 to enable the first through hole 291, the second through hole 2721 and the third through hole 2101 to coincide, and then extrudes the floating bag 26 to extrude gas in the floating bag 26 into the first driving section 221 to reset the driving plate 232; and then the inflator supplies air into the air supply pipe 242, the sealing cap 243 is screwed down, the limiting bag 241 is expanded to abut against the driving plate 232, and the driving plate 232 is limited, so that the next sampling is facilitated.
S2, cleaning the large garbage in the river channel in sections, using the ship to drive the fishing net with larger aperture to catch the large garbage in the river channel, replacing the fishing net with smaller aperture after cleaning, and cleaning again;
s3, excavating and cleaning bottom mud at the bottom of the river channel by using a sewage disposal ship, and accumulating the mud on a river beach;
s4, detecting and analyzing pollutants in the water quality samples of the river channels in the S1, measuring the accumulation amount and pollution condition of the pollutants, determining one or more combinations of microbial treatment bacterial agents such as photosynthetic bacteria, nitrifying bacteria, denitrifying bacteria and bifidobacteria of each section of river channel, and then calculating the addition amount of the microbial treatment bacterial agents according to the measured accumulation amount and pollution condition of the pollutants and adding the microbial treatment bacterial agents into the corresponding river channel;
s5, periodically collecting water quality samples in the river channel by adopting the sampling device 2 and the sampling bottle 1, analyzing the content change of pollutants, and evaluating the pollution treatment effect;
and S6, planting aquatic and wet plants on the mud of the river beach to finish ecological restoration treatment of the sediment.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (4)
1. A pollution river ecological restoration treatment method based on plain river network areas is characterized by comprising the following steps: the method comprises the following steps:
s1, setting a simple dam to segment a river channel, measuring water environment parameters of each segment of river channel, and collecting and storing sludge, sediment and water quality samples;
s1.1, when a water sample is collected, taking down bottle caps (15) of all sampling bottles (1) one by one, and installing the sampling bottles (1) on an installation tube (21) of a sampling device (2) through a connecting mechanism (3);
s1.2, a worker grabs an air supply pipe (242) of a limiting mechanism (24), places the sampling device (2) in a river channel to be sampled, screws off a sealing cap (243) of the limiting mechanism (24), starts a driving mechanism (23) of the sampling device (2), and pumps river water into a sampling bottle (1);
s1.3, a worker pulls the air supply pipe (242), pulls the sampling device (2) out of the river channel, screws the bottle caps (15), takes down the sampling bottles (1) one by one and puts the sampling bottles into a sampling box for storage;
s2, using a ship to drive a fishing net to catch the large garbage in the river channel;
s3, excavating and cleaning the bottom mud at the bottom of the river channel by using a sewage disposal ship;
s4, detecting and analyzing pollutants on the water quality samples of the river channels in the S1, determining the accumulation amount and pollution condition of the pollutants, determining microbial treatment microbial inoculum of each river channel, and putting the microbial treatment microbial inoculum into the corresponding river channel;
s5, periodically collecting water quality samples, analyzing the content change of pollutants, and evaluating pollution treatment effects;
s6, planting aquatic and wet plants on the river beach to finish ecological restoration treatment of the sediment;
the sampling bottle (1) comprises a bottle body (11), a sealing plate (12) arranged in the bottle body (11) in a sliding manner and a sealing ring (13) sleeved on the sealing plate (12), wherein the outer periphery of the sealing ring (13) is attached to the inner wall of the bottle body (11);
one end of the bottle body (11) is communicated with a water inlet pipe (14), and the bottle cap (15) is in threaded connection with one end of the water inlet pipe (14) far away from the bottle body (11);
the other end of the bottle body (11) is communicated with a water pumping pipe (16), one end, far away from the bottle body (11), of the water pumping pipe (16) is inserted into the sampling device (2), and the sampling bottle (1) is connected with the mounting pipe (21) through the connecting mechanism (3);
the sampling device (2) comprises a driving pipe (22), the driving pipe (22) is communicated with the mounting pipe (21), one end of the driving mechanism (23) is arranged in the mounting pipe (21), the other end of the driving mechanism (23) is slidably arranged in the driving pipe (22), and the driving mechanism (23) seals the driving pipe (22);
one end of the limiting mechanism (24) is arranged in the driving tube (22), the limiting mechanism (24) is positioned at one side of the driving mechanism (23) opposite to the sampling bottle (1), and the other end of the limiting mechanism (24) penetrates through the side wall of the driving tube (22) and extends out of the driving tube (22);
the mounting pipe (21) is provided with a plurality of plug holes (211) for the matching insertion of the water suction pipes (16), the hole walls of the plug holes (211) are provided with first sealing layers (25), the water suction pipes (16) are inserted into the plug holes (211) in a one-to-one correspondence manner and are attached to the first sealing layers (25), and the sampling bottle (1) is connected with the mounting pipe (21) through the connecting mechanism (3); the connecting mechanism (3) comprises a connecting pipe (31), the connecting pipe (31) is sleeved on the outer side of the water pumping pipe (16), the connecting pipe (31) is connected with the bottle body (11), an external thread (311) is arranged on the connecting pipe (31), a thread groove (212) is arranged on the mounting pipe (21), and the connecting pipe (31) is in threaded connection with the thread groove (212);
the driving mechanism (23) comprises a spring (231), a driving plate (232) arranged in the driving tube (22) in a sliding manner and a sealing gasket (233) arranged on the driving plate (232), the outer periphery of the sealing gasket (233) is attached to the inner periphery of the driving tube (22), one end of the spring (231) is arranged on the mounting tube (21), and the other end of the spring (231) is arranged on the driving plate (232);
the limiting mechanism (24) comprises a limiting bag (241), the air supply pipe (242) is communicated with the limiting bag (241), and the sealing cap (243) is in threaded connection with one end, far away from the limiting bag (241), of the air supply pipe (242);
the inner wall of the driving tube (22) is provided with a limiting groove (2211), the side wall of the driving tube (22) is provided with a tube penetrating hole (2212), the limiting bag (241) is arranged in the limiting groove (2211), the air supply tube (242) extends out of the limiting groove (2211) through the tube penetrating hole (2212), and sealant is arranged in the tube penetrating hole (2212).
2. The method for ecologically repairing and treating the polluted river based on plain river network areas according to claim 1, wherein the method comprises the following steps of: one end of the driving pipe (22) far away from the mounting pipe (21) is communicated with a buoyancy bag (26), a triggering mechanism (27) for triggering the expansion of the buoyancy bag (26) is arranged in the driving pipe (22), one end of the triggering mechanism (27) is arranged on the driving plate (232), and the other end of the triggering mechanism (27) is arranged on the inner wall of the driving pipe (22);
the trigger mechanism (27) comprises a base (271), a trigger plate (272), a torsion spring (273) and a trigger rod (274), wherein the base (271) is arranged on the inner wall of the driving tube (22), one end of the torsion spring (273) is arranged on the base (271), the other end of the torsion spring (273) is arranged on the trigger plate (272), the trigger rod (274) is arranged on the driving plate (232), and the trigger rod (274) is abutted against the trigger plate (272);
be equipped with between trigger plate (272) with drive plate (232) spacing collar (29) that are used for spacing trigger plate (272), spacing collar (29) are located on drive pipe (22), spacing collar (29) are towards one end of trigger plate (272) is equipped with sealing ring (210), base (271) support tightly on sealing ring (210).
3. The method for ecologically restoring and treating the polluted river based on plain river network areas according to claim 2, which is characterized in that: the driving pipe (22) comprises a first driving section (221), a rotating section (222) and a second driving section (223), rotating heads (224) are arranged at two ends of the rotating section (222), rotating grooves (2213) for the rotating heads (224) to rotate in a matched mode are formed in the first driving section (221) and the second driving section (223), second sealing layers (28) are arranged at the bottoms of the rotating grooves (2213), and the rotating heads (224) are arranged in the rotating grooves (2213) and are abutted to the second sealing layers (28);
the first driving section (221) is communicated with the mounting pipe (21), the limiting groove (2211) is formed in the first driving section (221), the limiting ring (29) is formed in the rotating section (222), the base (271) is formed in the second driving section (223), and the second driving section (223) is communicated with the buoyancy bag (26);
be equipped with through-hole one (291) on spacing ring (29), be equipped with through-hole two (2721) on trigger plate (272), be equipped with through-hole three (2101) on sealing ring (210), when trigger plate (272) support tightly on sealing ring (210), through-hole two (2721) with through-hole three (2101) coincidence sets up, and does not coincide with through-hole one (291).
4. The method for ecologically restoring and treating the polluted river based on plain river network areas according to claim 3, wherein the method comprises the following steps of: the trigger rod (274) is provided with a sealing rod (5), and the sealing rod (5) is inserted into the through hole I (291) in a matching way.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210787182.6A CN115184570B (en) | 2022-07-06 | 2022-07-06 | Polluted river ecological restoration and treatment method based on plain river network area |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210787182.6A CN115184570B (en) | 2022-07-06 | 2022-07-06 | Polluted river ecological restoration and treatment method based on plain river network area |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115184570A CN115184570A (en) | 2022-10-14 |
CN115184570B true CN115184570B (en) | 2023-07-18 |
Family
ID=83517283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210787182.6A Active CN115184570B (en) | 2022-07-06 | 2022-07-06 | Polluted river ecological restoration and treatment method based on plain river network area |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115184570B (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001056333A (en) * | 1999-08-19 | 2001-02-27 | Yoshikazu Izumi | Endless sample bottle for automatic water sampler |
JP2005052697A (en) * | 2003-08-06 | 2005-03-03 | Hitachi Ltd | Water quality monitoring system |
CN108773907A (en) * | 2018-08-24 | 2018-11-09 | 上海海洋大学 | Polluted river channel ecological remediation and treatment method based on river network in plain areas |
CN113135618A (en) * | 2021-05-21 | 2021-07-20 | 生态环境部南京环境科学研究所 | Restoration method for microbial degradation ecology |
WO2021174449A1 (en) * | 2020-03-04 | 2021-09-10 | 昆山贝名新材料科技有限公司 | Water quality sampling device for environmental protection technology development |
CN214621831U (en) * | 2021-02-22 | 2021-11-05 | 吕文丽 | River sewage detects uses sampling device for ecological restoration |
CN113683198A (en) * | 2021-08-17 | 2021-11-23 | 青海生源园林绿化工程有限公司 | River channel ecological restoration method |
-
2022
- 2022-07-06 CN CN202210787182.6A patent/CN115184570B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001056333A (en) * | 1999-08-19 | 2001-02-27 | Yoshikazu Izumi | Endless sample bottle for automatic water sampler |
JP2005052697A (en) * | 2003-08-06 | 2005-03-03 | Hitachi Ltd | Water quality monitoring system |
CN108773907A (en) * | 2018-08-24 | 2018-11-09 | 上海海洋大学 | Polluted river channel ecological remediation and treatment method based on river network in plain areas |
WO2021174449A1 (en) * | 2020-03-04 | 2021-09-10 | 昆山贝名新材料科技有限公司 | Water quality sampling device for environmental protection technology development |
CN214621831U (en) * | 2021-02-22 | 2021-11-05 | 吕文丽 | River sewage detects uses sampling device for ecological restoration |
CN113135618A (en) * | 2021-05-21 | 2021-07-20 | 生态环境部南京环境科学研究所 | Restoration method for microbial degradation ecology |
CN113683198A (en) * | 2021-08-17 | 2021-11-23 | 青海生源园林绿化工程有限公司 | River channel ecological restoration method |
Also Published As
Publication number | Publication date |
---|---|
CN115184570A (en) | 2022-10-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2171155A1 (en) | Underground fluid sampling apparatus | |
CN109736277B (en) | Marine quick dirt absorbing device and dirt absorbing fence system thereof | |
CN112461909A (en) | A water resource monitoring devices for among irrigation | |
CN117589519A (en) | Layered water quality monitoring device for municipal administration and application method thereof | |
CN115184570B (en) | Polluted river ecological restoration and treatment method based on plain river network area | |
CN212134230U (en) | Water layering collection system | |
CN210465414U (en) | Sampling device for water quality testing convenient to clean | |
CN212391467U (en) | Simple and easy coastal wetland shallow groundwater monitoring devices | |
CN113155370B (en) | Glove breakage detection device for hospital | |
CN111735927B (en) | Sewage detection device for environment detection | |
CN111893973B (en) | Marine greasy dirt recovery unit | |
CN211825247U (en) | River course quality of water sampling device | |
CN209958311U (en) | Marine quick soil pick-up device, soil pick-up rail and soil pick-up rail system | |
CN209992242U (en) | Sampling device for detecting water quality of discharged water of sludge concentration tank | |
CN210104687U (en) | Scraping type sewage suction device, sewage suction fence and sewage suction fence system | |
CN116265890A (en) | Sealing detection device for production of drainage bag high-strength disposable valve | |
CN221280886U (en) | Road water permeability detector | |
CN221051844U (en) | Biogas digester with alarm function for garbage disposal | |
CN219121784U (en) | Floating type river channel remote water quality sampling equipment | |
CN112845429A (en) | Crystal removing and blockage removing device for tunnel drainage pipeline | |
CN221594368U (en) | Water intake device for water quality detection of drainage pipeline | |
CN219519755U (en) | Can dismantle look around drilling camera belt cleaning device | |
CN221402208U (en) | Leak protection underground valve well structure | |
CN221878280U (en) | Portable bathroom water cyclic utilization device | |
CN211347504U (en) | A sewage sample thief for environmental monitoring |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |