CN105110551A - High dissolved oxygen aeration-constructed wetland combined sewage treatment system and treatment process - Google Patents
High dissolved oxygen aeration-constructed wetland combined sewage treatment system and treatment process Download PDFInfo
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- CN105110551A CN105110551A CN201510333145.8A CN201510333145A CN105110551A CN 105110551 A CN105110551 A CN 105110551A CN 201510333145 A CN201510333145 A CN 201510333145A CN 105110551 A CN105110551 A CN 105110551A
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses a high dissolved oxygen aeration-constructed wetland combined sewage treatment system and treatment process. The treatment system comprises a power supply system, an aeration system and a constructed wetland system, wherein the aeration system comprises a blower fan, monitoring equipment, aeration equipment and an aeration tank, the aeration equipment comprises a plurality of aeration filling materials, each aeration filling material comprises a central seat and a plurality of membrane structures communicated with the interior of the central seat, the plurality of membrane structures are circumferentially arranged around the periphery of the central seat at an interval so as to form a petal structure, the plurality of aeration filling materials are connected in series so as to allow the interiors of the central seats to be mutually communicated and an air passing channel to be formed, air produced by the blower fan flows from an air conveying pipeline, through the monitoring equipment and the central seats and finally into the membrane structures and realizes aeration in the aeration tank through the membrane structures, the constructed wetland system comprises a tank body, the tank body is provided with a water inlet pipe and a water outlet pipe, and the water treated by the aeration system enters the constructed wetland system via the water inlet pipe. The high dissolved oxygen aeration-constructed wetland combined sewage treatment system and treatment process have the advantages of high pollution load tolerance degree, low cost and conservation of energy.
Description
Technical field
The present invention relates to a kind of high dissolved oxygen aeration in conjunction with the Sewage treatment systems of artificial swamp and treatment process.
Background technology
Artificial swamp have investment low, simple to operate, safeguard and the feature such as working cost is low, soil can be afforested simultaneously, improve the ecological environment, be applicable to living scattered area and in, the sewage disposal technology of samll cities and towns.A kind of artificial swamp disclosed in CN204079607U, carry out research from aspects such as hydraulics, aeration mode, Fillers selection and optimize the body internal structure setting of artificial swamp pond, water distribution uniformity, select high-performance filler and adopt porous hollow sphere to wrap up filler, utilize the Gradient distribution of natural energy layering aeration control dissolved oxygen, enhance the wastewater treatment efficiency of artificial swamp, but its resistant to pollution load of machinery systems is limited, the waste water that some pollution levels are serious is difficult to obtain good treatment effect.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of high dissolved oxygen aeration in conjunction with the Sewage treatment systems of artificial swamp and treatment process, have the anti-pollution load of machinery systems high, cost is low, saves the advantage of the energy.
One of the technical solution adopted for the present invention to solve the technical problems is:
High dissolved oxygen aeration, in conjunction with a Sewage treatment systems for artificial swamp, comprises power supply system, aerating system and artificial wet land system;
This aerating system comprises blower fan, monitoring equipment, aerator and aeration tank; This blower fan, monitoring equipment and aerator are communicated with by air delivering pipeline, and monitoring equipment is located between blower fan and aerator; Aerator comprises some aerating fillings, some membrane structures that this aerating filling comprises centre mount and is communicated with centre mount inside, and this some membrane structure arranges to be petal type structure around the peripheral circumferential interval of centre mount; This some aerating filling is connected in series centre mount inside is interconnected and formed gas passage mutually; The gas that blower fan produces enters membrane structure and by membrane structure to aeration in aeration tank through monitoring equipment, centre mount successively by air delivering pipeline; Described aerating system also comprises equalizing tank, and the water in equalizing tank enters aeration tank by hydraulic pipe-line;
Artificial wet land system comprises pond body, and this Chi Tishang is provided with water inlet pipe and rising pipe; This pond body is communicated with described aeration tank by water inlet pipe, and the water after aerating system process enters artificial wet land system through water inlet pipe.
In one embodiment: described aerating filling comprises gas mother pipe and some hollow membrane silks, namely this gas mother pipe forms above-mentioned centre mount, this hollow membrane silk is above-mentioned membrane structure, and this some hollow membrane silk is arranged around the peripheral circumferential interval of the female pipe of gas and formed above-mentioned petal type structure; Each hollow membrane silk bends all female with the gas pipe in U-shaped and its two ends and is communicated with to make that hollow membrane silk is inner to be communicated with gas mother pipe is inner; The female pipe upper port of gas of each aerating filling directly or by pipe connecting is communicated with the female infratubal port of the gas of a upper aerating filling, the female pipe upper port of gas of the aerating filling of the top is communicated with air delivering pipeline, and the female infratubal port attaching of gas of the aerating filling of bottom has a plug.
In one embodiment: described aerating filling comprises female adapter and some film units, namely this mother adapter forms above-mentioned centre mount; This film unit is above-mentioned membrane structure, and this some film unit is taken over circumferential interval around mother and arranged the above-mentioned petal type structure of formation; This film unit comprises gas mother pipe and some hollow membrane silks; Gas mother pipe is communicated with female nozzle interior; Each hollow membrane silk bends all female with the gas pipe in U-shaped and its two ends and is communicated with to make that hollow membrane silk is inner to be communicated with gas mother pipe is inner; Bending section in the middle part of hollow membrane silk is fixed on the free end of film unit by a fixed sturcture; Mother's adapter upper port of each aerating filling is direct or be communicated with mother's adapter lower port of a upper aerating filling by pipe connecting, mother's adapter upper port of the aerating filling of the top is direct or be communicated with air delivering pipeline by pipe connecting, and mother's adapter lower port attaching of the aerating filling of bottom has a plug.
In one embodiment: described hollow membrane silk is that tunica fibrosa is made, and this tunica fibrosa is laminated together successively by hydrophobic layer from inside to outside, supporting layer, hydrophilic layer and is formed.
In one embodiment: the membrane pore size of described hollow membrane silk is less than 3 μm.
In one embodiment: be provided with at least two layers of packing layer, ecological vegetable layer from lower to upper successively in the body of described pond, filler in described packing layer is wrapped up by porous hollow sphere, the particle diameter of the filler in each packing layer reduces from lower to upper successively, and be furnished with aerated conduit in every one deck packing layer, described aerated conduit both sides are external along pond upwards to be extended, and aerated conduit is provided with ventilating pit; Header is provided with bottom the body of described pond; Body top, described pond is provided with roof.
In one embodiment: described aerator comprises some aerating filling groups parallel with one another, each aerating filling group comprises at least two aerating fillings be mutually connected in series; Described monitoring equipment is at least two, the corresponding each monitoring equipment of each aerating filling group.
In one embodiment: described aerator also comprises common fillers, and common fillers is located on aerating filling.
In one embodiment: described monitoring equipment is rotor-type or gas meter formula; Described power supply system is solar electric power supply system, and this solar electric power supply system comprises solar generator and store battery; Described blower fan electricity connects store battery.
Two of the technical solution adopted for the present invention to solve the technical problems is:
High dissolved oxygen aeration is in conjunction with a treatment process for the Sewage treatment systems of artificial swamp, and aeration rate is gas-water ratio 10 ~ 15; Aeration mode is intermittent aeration, each aeration 30 ~ 40min, and every day is aeration 6 ~ 12h altogether; Aerating filling and common fillers number ratio are 2:1, and aerating filling and common fillers are matrix distribution, and adjacent aerating filling, adjacent common fillers, spacing between adjacent aerating filling and common fillers are 200mm; The specific surface area of hollow membrane silk is greater than 600cm
2/ cm
3; Aerating system volumetric loading is 0.6 ~ 1.0m
3/ (m
2d); The aerating system process water yield 0 ~ 500m
3/ d; Artificial wet land system floor space is less than 1500m
2; Aeration tank floor space is 1/3 ~ 2/5 of artificial wet land system floor space; Filler in each packing layer of artificial wet land system is one or more in microlith, rubble or pebbles, and the particle diameter of the filler in each packing layer reduces from lower to upper successively; In ecological vegetable layer, the plant of plantation is reed, calamus, cattail, iris, Canna generalis Bailey, fairy bamboo wherein one or more.
The technical program is compared with background technology, and its tool has the following advantages:
1. aerating filling of the present invention have employed the hollow membrane silk that tunica fibrosa is made, while aeration, tunica fibrosa can also as the carrier of microorganism growth, the pollutent in microorganism panning sewage is utilized to purify liquid waste as nutrition, aeration can also for being attached to the microorganism oxygen supply on film, compares the efficiency that common fillers that tradition do not have aeration performance purifies liquid waste higher.
2. conventional aeration often forms a large amount of air filled cavitys, air filled cavity rises to water surface, be diffused in air, the utilization ratio of oxygen is low, and the membrane pore size of the hollow membrane silk of aerating filling of the present invention is less than 3 μm, aperture is little, the bubble produced is little, and oxygen supply pressure can be controlled at bubble point (during aeration, fiber membranous wall producing the minimum gas pressure intensity of bubble) below during actually operating, make there is no macroscopic bubble formation in oxygen supply process, to realize bubble-free aeration, bubble-free aeration can make most oxygen conversion be dissolved oxygen in water body, dissolved oxygen in water can reach 0.5-4mg/L, greatly improve oxygen utilization rate, oxygen mass transfer efficiency is high, save energy.
3. in aerating filling, some membrane structures arrange to be petal type structure around the peripheral circumferential interval of centre mount, and tamped density is high, improves the utilization ratio of gas, improves aeration efficiency further.
4. the present invention is provided with monitoring equipment between blower fan and aerating filling, can understand the running condition of filler by observing monitoring equipment in real time.
5. a kind of high dissolved oxygen aeration of the present invention is in conjunction with the Sewage treatment systems of artificial swamp and treatment process, adopt aerating system and artificial wet land system Duplex treatment, aerating system can carry out pre-treatment to sewage, effectively prevent the normal blockage problem occurred in artificial wet land system use procedure, also improve the process load level of artificial wet land system, artificial wet land system can on the process basis of aerating system, dissolved oxygen Gradient distribution is formed by layering aeration, strengthen nitrated, the absorption of denitrification and phosphorus, Conventional pollution can not only be removed, and to nitrogen, the nutritive substances such as phosphorus have obvious treatment effect, aerating system and artificial wet land system complement each other, further enhance wastewater treatment efficiency, compare simple artificial swamp method, the resistant to pollution load of machinery systems of the present invention is higher, that is can process simple artificial swamp method the even more serious sewage of not treatable pollution, and compared with other water technologies, when realizing effect same, its processing cost reduces greatly, save working cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the Sewage treatment systems schematic diagram of a kind of high dissolved oxygen aeration of the present invention in conjunction with artificial swamp.
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1.
Fig. 3 is the aerating filling diagrammatic cross-section in the embodiment of the present invention 1.
Fig. 4 is the aerating filling schematic side view in the embodiment of the present invention 1.
Fig. 5 is the aerating filling schematic top plan view in the embodiment of the present invention 1.
Fig. 6 is the aerating filling schematic side view in the embodiment of the present invention 2.
Fig. 7 is the aerating filling schematic top plan view in the embodiment of the present invention 2.
Fig. 8 is the aerating filling overall appearance schematic diagram in the embodiment of the present invention 3.
Fig. 9 is the film unit structural representation in the embodiment of the present invention 3.
Figure 10 is the aerating filling schematic diagram of serial connection mutually in the embodiment of the present invention 3.
Reference numeral: power supply system 10, solar generator 11, store battery 12; Aerating system 20, blower fan 21, monitoring equipment 22, equalizing tank 23, aerating filling 24, the female pipe 241,241 ' of gas, hollow membrane silk 242,242 ', pipe connecting 243,243 ', female adapter 244, film unit 245, fixed sturcture 246, common fillers 25; Pond body 30, water inlet pipe 31, rising pipe 32, packing layer 33, ecological vegetable layer 34, aerated conduit 35, header 36.
Embodiment
Content of the present invention is illustrated below by embodiment:
Please refer to Fig. 1-Fig. 2, a kind of high dissolved oxygen aeration, in conjunction with the Sewage treatment systems of artificial swamp, comprises power supply system 10, aerating system 20 and artificial wet land system; Described power supply system 10 is solar electric power supply system, comprises solar generator 11 and store battery 12; Aerating system 20 comprises blower fan 21, monitoring equipment 22, aerator and aeration tank; This blower fan 21, monitoring equipment 22 and aerator are communicated with by air delivering pipeline; Described blower fan 21 electricity connects store battery 12; Aerator comprises some aerating filling groups parallel with one another, and each aerating filling group comprises at least two aerating fillings 24 be mutually connected in series; Described monitoring equipment 22 is at least two, is located between blower fan 22 and aerating filling group; The corresponding each monitoring equipment 22 of each aerating filling group; Some membrane structures that this aerating filling 24 comprises centre mount and is communicated with centre mount inside, this some membrane structure arranges to be petal type structure around the peripheral circumferential interval of centre mount; In each aerating filling group, the centre mount inside of the aerating filling 24 of serial connection is interconnected and formed gas passage mutually; The gas that blower fan 21 produces enters membrane structure and by membrane structure to aeration in aeration tank through monitoring equipment 22, centre mount successively by air delivering pipeline; Described aerating system 20 also comprises equalizing tank 23, and the water in equalizing tank 23 enters aeration tank by hydraulic pipe-line;
Artificial wet land system comprises pond body 30, and this pond body 30 is provided with water inlet pipe 31 and rising pipe 32; This pond body 30 is communicated with described aeration tank by water inlet pipe 31, and the water after aerating system 20 processes enters artificial wet land system through water inlet pipe 31; Water inlet pipe 31 is made up of supervisor and arm, and between arm, spacing is equal, is uniformly distributed, and ensures the homogeneity of water inlet; Three layers of packing layer 33, ecological vegetable layer 34 is provided with from lower to upper successively in described pond body 30, filler in each packing layer 33 can be one or more in microlith, rubble or pebbles, filler is wrapped up by porous hollow sphere, add conveniently, and porous hollow sphere and filler together constitute the place of attached growth of microorganisms, are therefore more conducive to biomembranous growth; The particle diameter of the filler in each packing layer 33 reduces from lower to upper successively; In ecological vegetable layer 34, the plant of plantation can be wherein one or more such as reed, calamus, cattail, iris, Canna generalis Bailey, fairy bamboo, well developed root system, and by force, growth cycle is short, freeze proof for durability against pollution, economic worth and landscape effect good; And being furnished with aerated conduit 35 in every one deck packing layer 33, described aerated conduit 35 both sides are external along pond upwards to be extended, and aerated conduit 35 is provided with ventilating pit, pours into the air with oxygen when blowing by wind energy, utilizes natural energy to carry out aeration; Header 36 is provided with bottom described pond body 30; Body 30 top, described pond is provided with roof.
Among the present embodiment, described aerating filling 24 comprises the female pipe 241 of gas and some hollow membrane silks 242, namely the female pipe 241 of this gas forms above-mentioned centre mount, this hollow membrane silk 242 is above-mentioned membrane structure, and this some hollow membrane silk 242 is arranged around the peripheral circumferential interval of the female pipe 241 of gas and formed above-mentioned petal type structure; Each hollow membrane silk 242 bends all female with the gas pipe 241 in U-shaped and its two ends and is communicated with to make that hollow membrane silk 242 is inner to be communicated with the female pipe 241 of gas is inner; And the connectivity part of the female pipe 241 of hollow membrane silk 242 two ends and gas is positioned at same aspect, namely hollow membrane silk 242 bends U-shaped rear U-shaped two-arm and is positioned at same layer as illustrated in figures 4-5; In each aerating filling group, female pipe 241 upper port of gas of each aerating filling 24 directly or by pipe connecting 243 is communicated with female pipe 241 lower port of the gas of a upper aerating filling 24, female pipe 241 upper port of gas of the aerating filling 24 of the top directly or by pipe connecting 243 is communicated with the lower port of air delivering pipeline, and gas female pipe 241 lower port attaching of the aerating filling 24 of bottom has a plug.
Among the present embodiment, described hollow membrane silk 242 is made for tunica fibrosa, as the carrier of microorganism growth, this tunica fibrosa is by hydrophobic layer from inside to outside, supporting layer, hydrophilic layer is laminated together formation successively, and the membrane pore size of described hollow membrane silk 242 is less than 3 μm, aperture is little, during actually operating, oxygen supply pressure is controlled at bubble point (during aeration, fiber membranous wall producing the minimum gas pressure intensity of bubble) below, make there is no macroscopic bubble formation in oxygen supply process, to realize bubble-free aeration, improve oxygen utilization rate, it is the microorganism oxygen supply be attached on film while aeration, the pollutent in microorganism panning sewage is utilized to purify liquid waste as nutrition.
Among the present embodiment, can all be set to aerating filling 24 in described aerator, also can comprise the common fillers 25 without aeration performance, common fillers 25 is located on aerating filling 24; Like this, during operation, as required, the whole region of aerator all aerations can be made, also can make aerator top not aeration and bottom aeration, aeration rate can be saved, reduce energy consumption.
Among the present embodiment, described monitoring equipment 22 can be rotor-type, namely has rotor in monitoring equipment 22, and when air-flow passes through time, rotor can rotate, if hollow membrane silk 242 blocks, can not breathe freely, then rotor is motionless; If rotor turns is rapid, illustrates that gas flow is very large, illustrate that hollow membrane silk 242 is likely damaged; By observing the rotation of rotor, aerating filling 24 running condition can be understood.Described monitoring equipment 22 can be also gas meter formula, according to the monitoring observation of gas meter, can infer contamination and plugging or the breakage of hollow membrane silk 242 accordingly: hollow membrane silk 242 is damaged, then gas flow is large; Hollow membrane silk 242 contamination and plugging, then gas flow is very little; Aerating filling 24 normally runs, then gas flow is in normal range.
During the actual use of the present embodiment, powered by solar electric power supply system, pending water is collected through equalizing tank 23, is regulated, then aerating system 20 is entered, the gas that blower fan 21 produces by air delivering pipeline successively through monitoring equipment 22 enter aerating filling 24 the female pipe 241 of gas, enter hollow membrane silk 242 by the female pipe 241 of gas, then by the fenestra on hollow membrane silk 242 to aeration in aeration tank, improve the dissolved oxygen in water, eliminate the anoxic condition of water body, the self-purification of strengthening water body; Hollow membrane silk 242 itself, as the carrier of attached growth of microorganisms, utilizes the effect of microorganism to strengthen pending water purification effect further; Water after aerating system 20 processes enters artificial wet land system through water inlet pipe 31, flow through ecological vegetable layer 34 from top to bottom, three layers of packing layer 33, realize layering aeration, in the body of pond, form anaerobic zone and aerobic zone, under waterplant and biomembranous effect, complete the degraded of pollutent, the water after process is collected through header 36, enter water collecting basin, finally discharge from rising pipe 32.Aeration rate is gas-water ratio 10 ~ 15; Aeration mode is intermittent aeration, each aeration 30 ~ 40min, and every day is aeration 6 ~ 12h altogether; Aerating filling and common fillers number ratio are 2:1, and aerating filling and common fillers are matrix distribution, and adjacent aerating filling, adjacent common fillers, spacing between adjacent aerating filling and common fillers are 200mm; Aerating system volumetric loading is 0.6 ~ 1.0m
3/ (m
2d); The aerating system process water yield 0 ~ 500m
3/ d; Artificial wet land system floor space is less than 1500m
2; Aeration tank floor space is 1/3 ~ 2/5 of artificial wet land system floor space.
Embodiment 2
Please refer to Fig. 6 to Fig. 7, the present embodiment and embodiment 1 difference are, the connectivity part of hollow membrane silk 242 two ends and the female pipe 241 of gas is positioned at different aspects, and namely hollow membrane silk 242 bends U-shaped rear U-shaped two-arm one arm at upper strata one arm in lower floor.All the other are with embodiment 1.
Embodiment 3
Please refer to Fig. 8 to Figure 10, the present embodiment and embodiment 1 difference are, described aerating filling 24 comprises female adapter 244 and some film units 245, namely this mother's adapter 244 forms above-mentioned centre mount, this film unit 245 is above-mentioned membrane structure, and this some film unit 245 arranges around the circumferential interval of mother's adapter 244 and forms above-mentioned petal type structure; This film unit 244 comprises the female pipe 241 ' of gas and some hollow membrane silks 242 '; The female pipe 241 ' of gas is communicated with female adapter 244 inside; Each hollow membrane silk 242 ' bending U-shaped and all female with gas pipe 241 ' in its two ends is communicated with to make hollow membrane silk 242 ' inside and gas mother pipe 241 ' is inner is communicated with; The bending section at hollow membrane silk 242 ' middle part is fixed on the free end of film unit 245 by a fixed sturcture 246; In each aerating filling group, mother's adapter 244 upper port of each aerating filling 24 directly or by pipe connecting 243 ' is communicated with mother's adapter 244 lower port of a upper aerating filling 24, mother's adapter 244 upper port of the aerating filling 24 of the top directly or by pipe connecting 243 ' is communicated with the lower port of air delivering pipeline, and mother's adapter 244 lower port attaching of the aerating filling 24 of bottom has a plug.
The present embodiment is when reality uses, powered by solar electric power supply system, pending water is collected through equalizing tank 23, is regulated, then aerating system 20 is entered, the gas that blower fan 21 produces is entered mother's adapter 244 of aerating filling 24, is entered the female pipe 241 ' of gas of each film unit 244 by female adapter 244 through monitoring equipment 22 by air delivering pipeline successively, hollow membrane silk 242 ' is entered by the female pipe 241 ' of gas, again by the fenestra on hollow membrane silk 242 ' to aeration in aeration tank, improve the dissolved oxygen in water, eliminate the anoxic condition of water body, the self-purification of strengthening water body; Hollow membrane silk 242 ' itself, as the carrier of attached growth of microorganisms, utilizes the cleaning action that the effect of microorganism is strengthened waste water further.Water after aerating system 20 processes enters artificial wet land system through water inlet pipe 31, flow through ecological vegetable layer 34 from top to bottom, three layers of packing layer 33, realize layering aeration, in the body of pond, form anaerobic zone and aerobic zone, under waterplant and biomembranous effect, complete the degraded of pollutent, the water after process is collected through header 36, enter water collecting basin, finally discharge from rising pipe 32.Aeration rate is gas-water ratio 10 ~ 15; Aeration mode is intermittent aeration, each aeration 30 ~ 40min, and every day is aeration 6 ~ 12h altogether; Aerating filling and common fillers number ratio are 2:1, and aerating filling and common fillers are matrix distribution, and adjacent aerating filling, adjacent common fillers, spacing between adjacent aerating filling and common fillers are 200mm; The specific surface area of hollow membrane silk is greater than 600cm
2/ cm
3; Aerating system volumetric loading is 0.6 ~ 1.0m
3/ (m
2d); The aerating system process water yield 0 ~ 500m
3/ d; Artificial wet land system floor space is less than 1500m
2; Aeration tank floor space is 1/3 ~ 2/5 of artificial wet land system floor space; All the other are with embodiment 1.
Above-described embodiment all can realize the effect of following experimental example:
Experimental example 1
With certain rural area 10m
3/ d sanitary sewage disposal is example, adopts the present invention to process, aeration tank floor space 20m
2, artificial wet land system floor space 50m
2, under normal operation, the Inlet and outlet water water quality situation of two sub-samplings sees the following form.
| COD Cr(mg/L) | BOD 5(mg/L) | NH 3-N(mg/L) | TP(mg/L) | |
| Water inlet sample 1 | 462 | 203 | 36 | 4 |
| Go out water sample 1 | 39 | 9 | 7 | 0.5 |
| Water inlet sample 2 | 305 | 131 | 22 | 3 |
| Go out water sample 2 | 41 | 8 | 6 | 0.5 |
As can be seen from the above table, compare simple artificial swamp method, the present invention can process and pollute even more serious water, illustrate that the resistant to pollution load of machinery systems of the present invention is higher, and BOD clearance 80% ~ 90%, COD clearance 70% ~ 85%, synchronous denitrification dephosphorizing, ammonia nitrogen removal frank 70% ~ 80%, total tp removal rate 65% ~ 85%, have significant improvement compared with conventional sewage treatment effect in this area, the effluent quality after process reaches the one-level A standard in " urban wastewater treatment firm pollutant emission standard " GB18918-2002 completely; The running cost of sewage disposal is 0.20 yuan/ton of water, and when reaching equivalent effect, cost is compared other similar techniques and greatly reduced, and saves working cost.
Experimental example 2
With certain cities and towns 100m
3/ d sanitary sewage disposal is example, adopts process of the present invention, aeration tank floor space 180m
2, artificial wet land system floor space 450m
2, under normal operation, the Inlet and outlet water water quality situation of two sub-samplings sees the following form.
| COD Cr(mg/L) | BOD 5(mg/L) | NH 3-N(mg/L) | TP(mg/L) | |
| Water inlet sample 1 | 432 | 160 | 29 | 4 |
| Go out water sample 1 | 47 | 8 | 6 | 0.5 |
| Water inlet sample 2 | 193 | 123 | 20 | 2 |
| Go out water sample 2 | 38 | 9 | 6 | 0.5 |
As can be seen from the above table, compare simple artificial swamp method, the present invention can process and pollute even more serious water, illustrate that the resistant to pollution load of machinery systems of the present invention is higher, and BOD clearance 80% ~ 90%, COD clearance 70% ~ 85%, synchronous denitrification dephosphorizing, ammonia nitrogen removal frank 70% ~ 80%, total tp removal rate 65% ~ 85%, have significant improvement compared with conventional sewage treatment effect in this area, the effluent quality after process reaches the one-level A standard in " urban wastewater treatment firm pollutant emission standard " GB18918-2002 completely; The running cost of sewage disposal is 0.18 yuan/ton of water, and when reaching equivalent effect, cost is compared other similar techniques and greatly reduced, and saves working cost.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (10)
1. high dissolved oxygen aeration is in conjunction with a Sewage treatment systems for artificial swamp, it is characterized in that: comprise power supply system, aerating system and artificial wet land system;
This aerating system comprises blower fan, monitoring equipment, aerator and aeration tank; This blower fan, monitoring equipment and aerator are communicated with by air delivering pipeline, and monitoring equipment is located between blower fan and aerator; Aerator comprises some aerating fillings, some membrane structures that this aerating filling comprises centre mount and is communicated with centre mount inside, and this some membrane structure arranges to be petal type structure around the peripheral circumferential interval of centre mount; This some aerating filling is connected in series centre mount inside is interconnected and formed gas passage mutually; The gas that blower fan produces enters membrane structure and by membrane structure to aeration in aeration tank through monitoring equipment, centre mount successively by air delivering pipeline; Described aerating system also comprises equalizing tank, and the water in equalizing tank enters aeration tank by hydraulic pipe-line;
Artificial wet land system comprises pond body, and this Chi Tishang is provided with water inlet pipe and rising pipe; This pond body is communicated with described aeration tank by water inlet pipe, and the water after aerating system process enters artificial wet land system through water inlet pipe.
2. a kind of high dissolved oxygen aeration according to claim 1 is in conjunction with the Sewage treatment systems of artificial swamp, it is characterized in that: described aerating filling comprises gas mother pipe and some hollow membrane silks, namely this gas mother pipe forms above-mentioned centre mount, this hollow membrane silk is above-mentioned membrane structure, and this some hollow membrane silk is arranged around the peripheral circumferential interval of the female pipe of gas and formed above-mentioned petal type structure; Each hollow membrane silk bends all female with the gas pipe in U-shaped and its two ends and is communicated with to make that hollow membrane silk is inner to be communicated with gas mother pipe is inner; The female pipe upper port of gas of each aerating filling directly or by pipe connecting is communicated with the female infratubal port of the gas of a upper aerating filling, the female pipe upper port of gas of the aerating filling of the top is communicated with air delivering pipeline, and the female infratubal port attaching of gas of the aerating filling of bottom has a plug.
3. a kind of high dissolved oxygen aeration according to claim 1 is in conjunction with the Sewage treatment systems of artificial swamp, it is characterized in that: described aerating filling comprises female adapter and some film units, and namely this mother adapter forms above-mentioned centre mount; This film unit is above-mentioned membrane structure, and this some film unit is taken over circumferential interval around mother and arranged the above-mentioned petal type structure of formation; This film unit comprises gas mother pipe and some hollow membrane silks; Gas mother pipe is communicated with female nozzle interior; Each hollow membrane silk bends all female with the gas pipe in U-shaped and its two ends and is communicated with to make that hollow membrane silk is inner to be communicated with gas mother pipe is inner; Bending section in the middle part of hollow membrane silk is fixed on the free end of film unit by a fixed sturcture; Mother's adapter upper port of each aerating filling is direct or be communicated with mother's adapter lower port of a upper aerating filling by pipe connecting, mother's adapter upper port of the aerating filling of the top is direct or be communicated with air delivering pipeline by pipe connecting, and mother's adapter lower port attaching of the aerating filling of bottom has a plug.
4. a kind of high dissolved oxygen aeration according to Claims 2 or 3 is in conjunction with the Sewage treatment systems of artificial swamp, it is characterized in that: described hollow membrane silk is that tunica fibrosa is made, and this tunica fibrosa is laminated together successively by hydrophobic layer from inside to outside, supporting layer, hydrophilic layer and is formed.
5. a kind of high dissolved oxygen aeration according to Claims 2 or 3, in conjunction with the Sewage treatment systems of artificial swamp, is characterized in that: the membrane pore size of described hollow membrane silk is less than 3 μm.
6. a kind of high dissolved oxygen aeration according to Claims 2 or 3 is in conjunction with the Sewage treatment systems of artificial swamp, it is characterized in that: in the body of described pond, be provided with at least two layers of packing layer, ecological vegetable layer from lower to upper successively, filler in described packing layer is wrapped up by porous hollow sphere, the particle diameter of the filler in each packing layer reduces from lower to upper successively, and be furnished with aerated conduit in every one deck packing layer, described aerated conduit both sides are external along pond upwards to be extended, and aerated conduit is provided with ventilating pit; Header is provided with bottom the body of described pond; Body top, described pond is provided with roof.
7. a kind of high dissolved oxygen aeration according to claim 6 is in conjunction with the Sewage treatment systems of artificial swamp, it is characterized in that: described aerator comprises some aerating filling groups parallel with one another, each aerating filling group comprises at least two aerating fillings be mutually connected in series; Described monitoring equipment is at least two, the corresponding each monitoring equipment of each aerating filling group.
8. a kind of high dissolved oxygen aeration according to claim 7 is in conjunction with the Sewage treatment systems of artificial swamp, it is characterized in that: described aerator also comprises common fillers, and common fillers is located on aerating filling.
9. a kind of high dissolved oxygen aeration according to claim 1 is in conjunction with the Sewage treatment systems of artificial swamp, it is characterized in that: described monitoring equipment is rotor-type or gas meter formula; Described power supply system is solar electric power supply system, and this solar electric power supply system comprises solar generator and store battery; Described blower fan electricity connects store battery.
10. a kind of high dissolved oxygen aeration according to claim 8 is in conjunction with the treatment process of the Sewage treatment systems of artificial swamp, it is characterized in that: aeration rate is gas-water ratio 10 ~ 15; Aeration mode is intermittent aeration, each aeration 30 ~ 40min, and every day is aeration 6 ~ 12h altogether; Aerating filling and common fillers number ratio are 2:1, and aerating filling and common fillers are matrix distribution, and adjacent aerating filling, adjacent common fillers, spacing between adjacent aerating filling and common fillers are 200mm; The specific surface area of hollow membrane silk is greater than 600cm
2/ cm
3; Aerating system volumetric loading is 0.6 ~ 1.0m
3/ (m
2d); The aerating system process water yield 0 ~ 500m
3/ d; Artificial wet land system floor space is less than 1500m
2; Aeration tank floor space is 1/3 ~ 2/5 of artificial wet land system floor space; Filler in each packing layer of artificial wet land system is one or more in microlith, rubble or pebbles, and the particle diameter of the filler in each packing layer reduces from lower to upper successively; In ecological vegetable layer, the plant of plantation is reed, calamus, cattail, iris, Canna generalis Bailey, fairy bamboo wherein one or more.
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| CN201510333145.8A CN105110551B (en) | 2015-06-16 | 2015-06-16 | Sewage disposal system and handling process of a kind of high dissolved oxygen aeration with reference to artificial swamp |
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|---|---|---|---|
| CN201510333145.8A CN105110551B (en) | 2015-06-16 | 2015-06-16 | Sewage disposal system and handling process of a kind of high dissolved oxygen aeration with reference to artificial swamp |
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| CN105110551A true CN105110551A (en) | 2015-12-02 |
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Effective date of registration: 20230810 Address after: Units 101 and 201, No. 17 Xiangyue Road, Xiang'an Industrial Zone, Xiamen Torch High tech Zone, Xiamen, Fujian Province, 361000 Patentee after: XIAMEN VISBE ENVIRONMENTAL Group Address before: Unit 301, No. 17 Xiangyue Road, Xiang'an Industrial Zone, Xiamen Torch High tech Zone, Xiamen, Fujian Province, 361000 Patentee before: XIAMEN LEEBAM MEMBRANE TECHNOLOGY Co.,Ltd. |