CN113754185B - Fecal sewage concentration storage equipment and treatment method for northern rural areas - Google Patents
Fecal sewage concentration storage equipment and treatment method for northern rural areas Download PDFInfo
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- CN113754185B CN113754185B CN202111023228.9A CN202111023228A CN113754185B CN 113754185 B CN113754185 B CN 113754185B CN 202111023228 A CN202111023228 A CN 202111023228A CN 113754185 B CN113754185 B CN 113754185B
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- 239000010865 sewage Substances 0.000 title claims abstract description 79
- 230000002550 fecal effect Effects 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000003860 storage Methods 0.000 title claims abstract description 23
- 238000011282 treatment Methods 0.000 title abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000004062 sedimentation Methods 0.000 claims abstract description 42
- 238000000855 fermentation Methods 0.000 claims abstract description 41
- 230000004151 fermentation Effects 0.000 claims abstract description 41
- 210000003608 fece Anatomy 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 37
- 238000004821 distillation Methods 0.000 claims abstract description 30
- 239000010871 livestock manure Substances 0.000 claims abstract description 29
- 239000005341 toughened glass Substances 0.000 claims abstract description 19
- 238000005352 clarification Methods 0.000 claims abstract description 9
- 239000004567 concrete Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 6
- 238000004146 energy storage Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
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- 238000007689 inspection Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 230000003068 static effect Effects 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 244000144977 poultry Species 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
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- 239000012141 concentrate Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
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- 239000010802 sludge Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
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- 244000052616 bacterial pathogen Species 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides a fecal sewage concentration storage device and a fecal sewage treatment method for northern rural areas. The device comprises a device body (1) and a device top plate (2); the device body (1) is provided with a manure inlet (11) and a water outlet (12), a plurality of partition boards (13, 14 and 15) are arranged between the manure inlet (11) and the water outlet (12), and the partition boards (13, 14 and 15) divide the internal space of the device body (1) into a plurality of subspaces, and the subspaces comprise a first sedimentation fermentation tank (16), a second filter tank (17), a third clarification tank (18) and a fourth distillation tank (19); the unidirectional toughened glass cover plate covers a plurality of subspaces. Gaps (131, 141, 151) exist between the unidirectional toughened glass cover plate and the plurality of partition plates (13, 14, 15). The invention also provides a corresponding fecal sewage concentration treatment method. The invention is especially suitable for the fecal sewage treatment in northern rural areas.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a fecal sewage concentration storage device and a fecal sewage treatment method for northern rural areas.
Background
Along with the revolution of rural toilets in China and the implementation of a plan of a countryside, the wastewater of the toilets generated by a rural source is required to be purified and treated up to the standard; at present, three-format septic tanks are mainly implemented in China to treat the fecal water of a household toilet of a farmer, a large amount of non-decomposed organic matters exist in the water, and the water quality discharged by the toilet is not up to the relevant national standard. The existing prefabricated septic tank only has three-stage treatment tanks, so that the treated water flowing out of the final-stage clean water tank cannot be guaranteed, the effect of removing organic impurities cannot be achieved, and the discharged water cannot be recycled.
The Chinese patent No. 111573959A proposes a modified septic tank for purifying and treating toilet manure water and/or domestic wastewater to reach standards, which comprises: a septic tank, a filler layer for separating sludge from water, an aeration disc, a fan, a time controller, a water sterilization sterilizer and an operation control box;
the Chinese patent CN112479520A proposes an environment-friendly septic tank, which mainly comprises a septic tank, solar power generation equipment, an aeration pump, a sterilizer and a sludge sedimentation tank, and is formed by improving the existing three-grid septic tank; the invention claims that after the toilet excrement is treated, the discharged water quality reaches the first grade A standard of pollutant discharge Standard of urban wastewater treatment plant (GB 18918-2002).
The Chinese patent CN109160679A proposes a sewage treatment and recycling system for a large-scale poultry farm, wherein the poultry house is sequentially connected with a sewage collecting tank, a micro-filter, a three-stage sewage treatment tank, an aerobic tank, an ecological wetland and a disinfection and recycling system; the sewage collecting tank is used for collecting all sewage discharged by the poultry farm, and the sewage enters the sewage collecting tank after being collected by the sewage ditch; the micro-filter is used for treating sewage from the sewage collecting tank to obtain manure and primary treatment water; the tertiary sewage treatment tank is used for treating primary treatment water from the micro-filter to obtain secondary treatment water; the aerobic tank is used for treating secondary treatment water from the tertiary sewage treatment tank and carrying out oxidation treatment to obtain tertiary treatment water; the ecological wetland is used for treating the tertiary treatment water from the oxidation pond and performing biological purification on the tertiary treatment water to obtain the quaternary treatment water; the disinfection recycling system is used for treating the four-time treated water to obtain purified water. The invention claims to realize zero emission of scale poultry field pollutants.
However, in northern areas of China, especially rural areas, part of northern rural areas have no sewage treatment facilities, and the sewage in the septic tank needs to be extracted by a periodic vehicle for centralized treatment. The concentration of the extracted excrement is often particularly low, so that the transportation efficiency is low and the operation cost is high; when the treatment scheme mentioned in the prior art is used in northern rural areas, the problems of higher energy consumption, inapplicability, lower treatment efficiency and the like exist.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fecal sewage concentration storage device and a fecal sewage treatment method for northern rural areas.
It should be emphasized that the technical scheme of the invention is designed specifically for the sewage, especially the fecal sewage, production environment in northern rural areas, and the climate and geographic environment in northern areas. Various related technical schemes mentioned in the prior art have similar fecal sewage concentration treatment, but most of the related technical schemes are aimed at southern areas, have the problems of higher energy consumption and complex structure, and cannot be directly or indirectly transplanted to northern areas for application; even if the transplanting is used, the environmental characteristics of northern rural areas are not fully considered, energy conservation and consumption reduction can not be realized, and the requirements of green environment and humane environment can not be met. This is one of the starting points of the technical solution of the present invention, and is also an improvement concept of a plurality of key technical means in the technical solution of the present invention.
In a first aspect of the invention, there is provided a fecal water concentration storage device for use in northern rural areas, the device comprising a device body and a device top plate; the equipment body is provided with a manure inlet and a water outlet,
a plurality of partition boards are arranged between the manure inlet and the water outlet, and divide the internal space of the equipment body into a plurality of subspaces;
the subspaces comprise a first sedimentation fermentation tank, a second filter tank, a third clarification tank and a fourth distillation tank;
the equipment top plate is a unidirectional toughened glass cover plate, and the unidirectional toughened glass cover plate covers the subspaces;
the covering heights of the subspaces are covered by the unidirectional toughened glass cover plate, and the covering heights are sequentially reduced along the first sedimentation fermentation tank, the second filter tank, the third clarifying tank and the fourth distilling tank; meanwhile, gaps exist between the unidirectional toughened glass cover plate and the plurality of partition plates, and through the gaps, subspaces where the first sedimentation fermentation tank, the second filter tank, the third clarifier and the fourth distiller are located are communicated.
The bottoms of the first sedimentation fermentation tank, the second filter tank and the third clarification tank are respectively provided with a plain concrete backfill gradient layer;
the equipment body is placed on the composite cushion layer; the composite cushion layer comprises two layers, namely a plain concrete cushion layer and a sand stone cushion layer from top to bottom.
The equipment top plate is provided with a solar energy storage device, and an exhaust hole is arranged in the area of the equipment top plate covering the first sedimentation fermentation tank;
the exhaust hole is connected with a micro-monitor which is used for monitoring the composition and concentration of the gas exhausted by the exhaust hole;
and a water level meter is arranged in the area of the equipment top plate covering the fourth distillation pool, and the water level of the fourth distillation pool is detected through the water level meter arranged in the area of the equipment top plate covering the fourth distillation pool.
The occupied volume of each subspace is dynamically adjusted by the shaking of the first baffle and the third baffle;
however, in the whole, even in the fine adjustment process, the volume of the subspace where the first sedimentation fermentation tank is located is larger than the volume of the subspace where the second filtration tank is located; the volume of the subspace where the third clarifying tank is positioned is not smaller than the volume of the subspace where the fourth distilling tank is positioned.
Based on the apparatus of the first aspect, in a second aspect of the invention, a first fecal water concentration treatment method is presented, said method comprising the following steps S1-S3:
s1: after the fecal sewage to be treated enters the first sedimentation fermentation tank from the fecal inlet, the fecal sewage sequentially passes through the second filter tank, the third clarifying tank and the fourth distilling tank;
s2: monitoring the composition and concentration of the gas exhausted from the exhaust hole through a micro monitor connected with the exhaust hole arranged on the equipment top plate covering the first sedimentation fermentation tank area according to a first preset period;
s3: judging whether the composition and concentration of the gas meet a first predetermined condition;
if so, controlling a first partition plate positioned between the first sedimentation fermentation tank and the second filter tank to shake in a first preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the second filter tank is close to the top of the slope;
otherwise, return to step S1.
Based on the apparatus of the first aspect, in a third aspect of the invention, a second fecal water concentration treatment method is presented, said method comprising the following steps S1, S4, S5:
s1: after the fecal sewage to be treated enters the first sedimentation fermentation tank from the fecal inlet, the fecal sewage sequentially passes through the second filter tank, the third clarifying tank and the fourth distilling tank;
s4: detecting the water level of a fourth distillation pool through a water level meter arranged in a region of the equipment top plate covering the fourth distillation pool according to a second preset period;
s5: judging whether the water level meets a second preset condition or not;
if so, controlling a second partition plate positioned between the third clarifying tank and the fourth distilling tank to shake in a second preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank is close to the bottom of the slope;
otherwise, return to step S1.
Based on the apparatus of the first aspect, in a fourth aspect of the present invention, the aforementioned first fecal water concentration treatment method and second fecal water concentration treatment method may be combined, thereby realizing a third fecal water concentration treatment method as follows:
s1: after the fecal sewage to be treated enters the first sedimentation fermentation tank from the fecal inlet, the fecal sewage sequentially passes through the second filter tank, the third clarifying tank and the fourth distilling tank;
s2: monitoring the composition and concentration of the gas exhausted from the exhaust hole through a micro monitor connected with the exhaust hole arranged on the equipment top plate covering the first sedimentation fermentation tank area according to a first preset period;
s3: judging whether the composition and concentration of the gas meet a first predetermined condition;
if yes, a first partition plate positioned between the first sedimentation fermentation tank and the second filter tank is controlled to shake in a first preset range, where a plain concrete backfill gradient layer arranged at the bottom of the second filter tank is close to the top of the slope, and the step S4 is performed;
otherwise, returning to the step S1;
s4: detecting the water level of a fourth distillation pool through a water level meter arranged in a region of the equipment top plate covering the fourth distillation pool according to a second preset period;
s5: judging whether the water level meets a second preset condition or not;
if so, controlling a second partition plate positioned between the third clarifying tank and the fourth distilling tank to shake in a second preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank is close to the bottom of the slope;
otherwise, return to step S1.
Of course, the combination may be a parallel combination or a sequential combination, that is, the steps S2-S3 are executed in parallel with the steps S4-S5;
and/or, the steps S2-S3 are performed before the steps S4-S5;
and/or, the steps S2-S3 are performed after the steps S4-S5.
For example, the method may include, after the step S1:
s4: detecting the water level of a fourth distillation pool through a water level meter arranged in a region of the equipment top plate covering the fourth distillation pool according to a second preset period;
s5: judging whether the water level meets a second preset condition or not;
if so, controlling a second partition plate positioned between the third clarifying tank and the fourth distilling tank to shake in a second preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank is close to the bottom of the slope;
otherwise, return to step S1.
In the method technical solutions of the above aspects, the first preset condition and the second preset condition may be determined according to factors such as actual fecal sewage treatment standard requirements, actual size of the subspace, and the like.
It is pointed out again that the method of the invention is also specially applied to the fecal sewage concentration treatment in northern rural areas; the second preset period is greater than the first preset period.
Finally, the invention provides a fecal sewage concentration treatment method for the northern rural areas, which is realized based on the fecal sewage concentration storage equipment for the northern rural areas.
According to the technical scheme, the method and the device are designed in a targeted manner by fully considering the manure water generation environment in northern rural areas and the northern climates and geographical environments.
Specifically, the invention is provided with a distillation pool on the basis of the three-level septic tank, and agricultural wastes in the septic tank are distilled into the distillation pool through sunlight (the unidirectional toughened glass cover plate is arranged on the septic tank). Not only can concentrate rural sewage, but also can carry out resource utilization on the water which is finished. The scheme fully utilizes the characteristic of better illumination condition in northern areas, and aims at sewage-free treatment facilities in part of northern rural areas, and the excrement and the sewage in the septic tank are required to be extracted by a regular cart for centralized treatment. The concentration of the extracted fecal sewage tends to be particularly low.
According to the invention, the excrement in the three-stage septic tank is concentrated by sunlight, so that the conveying efficiency of the excrement is improved, and the operation cost is reduced; meanwhile, the shaking baffle is arranged in the three-stage septic tank, and the shaking of the baffle is controlled by solar energy, so that the subspace environment in the whole three-stage septic tank slightly shakes according to a preset period or preset condition, the defect that the prior art is always static is overcome, the fecal sewage treatment can be better carried out, and the fecal sewage collection, deposition, filtration and evolution efficiency is improved.
Further advantages of the invention will be further elaborated in the description section of the embodiments in connection with the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the overall appearance of a fecal sewage concentration and storage device for northern rural areas according to an embodiment of the present invention
FIG. 2 is a schematic view showing a part of an internal structure of a fecal sewage concentration and storage device for northern rural areas according to an embodiment of the present invention
FIG. 3 is a diagram showing shaking of a partition of the apparatus for concentrating and storing liquid manure of FIG. 1 or FIG. 2
FIG. 4 is a schematic view of the actual installation of the fecal sewage concentration and storage device of FIG. 1 or FIG. 2
FIG. 5 is a schematic top plan view of the fecal water concentration storage device of FIG. 4
FIG. 6 is a flow chart of a method for concentrating fecal sewage according to an embodiment of the present invention
FIG. 7 is a flow chart of a method for concentrating fecal sewage according to another embodiment of the present invention
FIG. 8 is a flow chart of a method for concentrating fecal sewage according to a preferred embodiment of the present invention
Detailed Description
The invention will be further described with reference to the drawings and detailed description.
Before describing the technical scheme of the invention, the principle and the structure of the three-level septic tank which are common in the field are described.
In general, a three-stage septic tank is one type of septic tank. The middle part of the first-stage pool is bent upwards through a pipeline to enter the next-stage pool for secondary purification, and then the second-purified manure water is guided into the next-stage pool for secondary purification, so that the manure water is completely converted into water after three times of cleaning, and can flow into a sewer to be led to a sewage treatment plant and finally flow into a river.
Working principle: fresh manure enters the first pool from the manure inlet, the manure in the pool starts to ferment and decompose, the manure liquid can be naturally divided into three layers due to different specific gravities, the upper layer is pasty manure skin, the lower layer is blocky or granular manure slag, and the middle layer is relatively clear manure liquid. The upper layer of the feces skin and the lower layer of the feces slag contain most bacteria and parasitic ova, the middle layer of the feces slag contains least ova, the middle layer of the primarily fermented feces liquid overflows to the second pool through the feces pipe, and most of the feces skin and the feces slag which are not fully fermented are blocked in the first pool for continuous fermentation. The manure liquid flowing into the second pool is further fermented and decomposed, the eggs continue to sink, the pathogens die gradually, the manure liquid is further harmless, and the thickness of the produced manure skin and manure is obviously reduced compared with that of the first pool. The manure liquid flowing into the third pond is generally already thoroughly decomposed, wherein germs and parasitic ova are essentially killed. The third pool mainly plays a role in storing the basically harmless excrement liquid.
The three-stage pool is built by bricks, cement powder wall surfaces or cement cast-in-situ, prefabrication can be carried out, the 'mesh' -shaped structure is taken as a main type, and if the three-stage pool is limited by terrains, the 'T' -shaped structure can be also adopted. The volume is preferably 2 months after the feces is stored. The effective depth of the three-stage pool is not less than 1m, and the volume ratio of 1 to 3 stages is generally 2:1:3.
generally, the three-stage septic tanks in the prior art are all static environments, the size of the internal space cannot be regulated, the whole septic treatment process is a slow static degradation process, the degradation efficiency is extremely low, and finally the water flowing out is generally low, only barely accords with the emission standard, and the recycling cannot be performed.
Especially in the northern rural areas of China, part of northern rural areas have no sewage treatment facilities, and the waste water in the septic tank needs to be extracted by a car periodically for centralized treatment. The concentration of the extracted fecal sewage is often particularly low, resulting in low transportation efficiency and higher operation cost.
Based on this, various embodiments of the technical solution of the present invention will be described.
Referring to fig. 1, an overall appearance of a fecal sewage concentration and storage device for northern rural areas according to an embodiment of the present invention is schematically shown.
In fig. 1, there is shown a fecal water concentration storage device for use in northern rural areas, the device comprising a device body 1 and a device top plate 2; the device body 1 is provided with a manure inlet 11 and a water outlet 12,
a plurality of partition plates 13, 14 and 15 are arranged between the manure inlet 11 and the water outlet 12, and the partition plates 13, 14 and 15 divide the internal space of the equipment body 1 into a plurality of subspaces;
the plurality of subspaces comprises a first sedimentation fermentation tank 16, a second filter tank 17, a third clarification tank 18 and a fourth distillation tank 19;
the equipment top plate 2 is a unidirectional toughened glass cover plate, and the unidirectional toughened glass cover plate covers the plurality of subspaces;
the glass cover plate is arranged to be a unidirectional toughened glass cover plate, and the glass cover plate not only has the function of sunlight transmission, but also has the shielding effect (shielding the outside from seeing the sight inside the septic tank).
The cover height of the unidirectional tempered glass cover plate covering the plurality of subspaces 16, 17 and 18 is lowered along the first sedimentation fermentation tank 16, the second filter tank 17, the third clarification tank 18 and the fourth distillation tank 19 in sequence;
meanwhile, gaps 131, 141 and 151 exist between the unidirectional toughened glass cover plate and the plurality of partition plates 13, 14 and 15, and subspaces where the first sedimentation fermentation tank 16, the second filter tank 17, the third clarifying tank 18 and the fourth distilling tank 19 are located are communicated through the gaps 131, 141 and 151.
In order to change the problem of low treatment efficiency caused by the static environment of the three-stage septic tank in the prior art, in the technical scheme of the invention, the first partition plate 13 and the third partition plate 15 can shake within a predetermined range, and the shake is slight.
The inventors have found that in a long-term static (almost) closed environment, regular slight shaking and changes in the size of the subspace can disturb the overall process flow, thereby changing the process efficiency, and proper shaking position arrangement can accelerate the process efficiency.
To this end, the present invention has been further developed in several ways.
Further reference is made to fig. 2, based on fig. 1.
The bottoms of the first sedimentation fermentation tank 16, the second filter tank 17 and the third clarification tank 18 are respectively provided with a plain concrete backfill gradient layer 161, 171 and 181;
the first slope 160 of the plain concrete backfill slope layers 161, 171, 181 is less than the second slope 20 of the equipment roof 2 relative to horizontal.
The equipment top plate 2 is provided with a solar energy storage device 21;
in one aspect, the first partition 13 between the first sedimentation fermentation tank 16 and the second filtration tank 17 is swayable within a first predetermined range 162 of a plain concrete backfill gradient layer 171 disposed at the bottom of the second filtration tank 17 near the top of the slope;
an exhaust hole 22 is arranged at the area of the equipment top plate 2 covering the first sedimentation fermentation tank 16;
the exhaust hole 22 is connected with a micro-monitor 23, and the micro-monitor 23 is used for monitoring the composition and concentration of the gas exhausted from the exhaust hole 22;
the solar energy storage device 21 supplies power to the micro-monitor 23, and controls the first partition 13 to shake within the first predetermined range 162 based on the monitoring result of the micro-monitor 23.
In another aspect, the third partition 15 between the third clarifier 18 and the fourth stilling pool 19 is configured to shake within a second predetermined range 182 of the plain concrete backfill gradient layer disposed at the bottom of the third clarifier 18 near the bottom of the slope;
a water level gauge 191 is arranged at the area of the equipment top plate 2 covering the fourth distillation pool 19; the third diaphragm 15 is controlled to shake within the second predetermined range 182 by the water level measurement result of the water level gauge 191.
A schematic illustration of the sloshing can be seen in fig. 3.
The shaking of the partition plates is controlled by using solar energy, so that the subspace environment in the whole three-stage septic tank slightly shakes according to a preset period or preset condition, the defect that the prior art is always static is overcome, the fecal sewage treatment can be better carried out, and the efficiency of fecal sewage collection, sedimentation, filtration and evolution is improved; meanwhile, the shaking is only slight shaking and does not need too much energy, so that the energy-saving and consumption-reducing effects are further realized by utilizing external too-energy.
It should be noted that the shaking needs to be performed when a preset period or a preset condition is met, so that the frequency of the actual performing process is not very high, and in view of good lighting conditions in northern rural areas, the design is sufficient to utilize solar energy, which is also confirmed by the actual application scenario.
In the above embodiment, the device body 1 is placed on a composite cushion layer; the composite cushion layer comprises two layers, namely a plain concrete cushion layer and a sand stone cushion layer from top to bottom.
Fig. 4 is a schematic view of an actual installation scenario of the fecal sewage concentration storage device of fig. 1 or fig. 2.
Referring to fig. 4, a sewage concentration and storage device in northern rural areas is provided with a distillation pool on the basis of three-level septic tanks, and agricultural sewage in the septic tanks is distilled into the distillation pool through sunlight (a unidirectional toughened glass cover plate is arranged on the septic tanks). Not only can concentrate rural sewage, but also can carry out resource utilization on the water which is finished. The special unidirectional toughened glass not only can transmit sunlight, but also can play a role in shielding, and the outside can be shielded from seeing the inside vision of the septic tank.
In fig. 4, the first sedimentation fermentation tank 16, the second filter tank 17 and the third clarifier 18 are a primary sedimentation fermentation tank, a secondary filter tank and a tertiary clarifier, respectively.
According to the respective realization effect, the invention can be realized by adopting a sedimentation fermentation tank, a filter tank and a clarification tank which are existing in the prior art, and the invention does not develop the realization effect.
Fig. 5 is a schematic top plan view of the fecal sewage concentration and storage device of fig. 4, wherein a plurality of inspection openings are also arranged at the position of the area of the top plate of the device in different subspaces near to the partition plate. The baffle may be a baffle.
Based on the embodiments of fig. 1-4, fig. 6-8 show various embodiments of a fecal sewage concentration treatment method for northern rural areas.
In fig. 6, a method for concentrating fecal sewage is provided, which comprises steps S1-S3, each of which is implemented as follows:
s1: after the fecal sewage to be treated enters the first sedimentation fermentation tank from the fecal inlet, the fecal sewage sequentially passes through the second filter tank, the third clarifying tank and the fourth distilling tank;
s2: monitoring the composition and concentration of the gas exhausted from the exhaust hole through a micro monitor connected with the exhaust hole arranged on the equipment top plate covering the first sedimentation fermentation tank area according to a first preset period;
s3: judging whether the composition and concentration of the gas meet a first predetermined condition;
if so, controlling a first partition plate positioned between the first sedimentation fermentation tank and the second filter tank to shake in a first preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the second filter tank is close to the top of the slope;
otherwise, return to step S1.
Fig. 7 is a flow chart of a fecal water concentration treatment method according to another embodiment of the present invention, the method comprises the following steps S1, S4, S5:
s1: after the fecal sewage to be treated enters the first sedimentation fermentation tank from the fecal inlet, the fecal sewage sequentially passes through the second filter tank, the third clarifying tank and the fourth distilling tank;
s4: detecting the water level of a fourth distillation pool through a water level meter arranged in a region of the equipment top plate covering the fourth distillation pool according to a second preset period;
s5: judging whether the water level meets a second preset condition or not;
if so, controlling a second partition plate positioned between the third clarifying tank and the fourth distilling tank to shake in a second preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank is close to the bottom of the slope;
otherwise, return to step S1.
Fig. 8 is a flow chart of a fecal sewage concentration treatment method according to a more preferred embodiment of the present invention, wherein fig. 6 and fig. 7 can be combined:
s1: after the fecal sewage to be treated enters the first sedimentation fermentation tank from the fecal inlet, the fecal sewage sequentially passes through the second filter tank, the third clarifying tank and the fourth distilling tank;
s2: monitoring the composition and concentration of the gas exhausted from the exhaust hole through a micro monitor connected with the exhaust hole arranged on the equipment top plate covering the first sedimentation fermentation tank area according to a first preset period;
s3: judging whether the composition and concentration of the gas meet a first predetermined condition;
if yes, a first partition plate positioned between the first sedimentation fermentation tank and the second filter tank is controlled to shake in a first preset range, where a plain concrete backfill gradient layer arranged at the bottom of the second filter tank is close to the top of the slope, and the step S4 is performed;
otherwise, returning to the step S1;
s4: detecting the water level of a fourth distillation pool through a water level meter arranged in a region of the equipment top plate covering the fourth distillation pool according to a second preset period;
s5: judging whether the water level meets a second preset condition or not;
if so, controlling a second partition plate positioned between the third clarifying tank and the fourth distilling tank to shake in a second preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank is close to the bottom of the slope;
otherwise, return to step S1.
Of course, the combination may be a parallel combination or a sequential combination, that is, the steps S2-S3 are executed in parallel with the steps S4-S5;
and/or, the steps S2-S3 are performed before the steps S4-S5;
and/or, the steps S2-S3 are performed after the steps S4-S5.
For example, the method may include, after the step S1:
s4: detecting the water level of a fourth distillation pool through a water level meter arranged in a region of the equipment top plate covering the fourth distillation pool according to a second preset period;
s5: judging whether the water level meets a second preset condition or not;
if so, controlling a second partition plate positioned between the third clarifying tank and the fourth distilling tank to shake in a second preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank is close to the bottom of the slope;
otherwise, return to step S1.
In the method technical solutions of the above aspects, the first preset condition and the second preset condition may be determined according to factors such as actual fecal sewage treatment standard requirements, actual size of the subspace, and the like.
For example, a first predetermined condition for judging whether or not the composition and concentration of the gas are satisfied may be set as the type of the composition value and the threshold value of the concentration value according to the actual measurement value and the correlation criterion after a plurality of measurements according to the experimental condition; and judging whether the water level meets a second preset condition, and determining a water level threshold value or a water level proportion and the like according to the actual size distribution of the subspace of the three-stage septic tank.
Again, the method of fig. 6-8 is also specifically applied to the concentration of fecal sewage in rural areas in north; the second preset period is greater than the first preset period.
The invention is provided with a distillation pool on the basis of the three-level septic tank, and agricultural wastes in the septic tank are distilled into the distillation pool through sunlight (the unidirectional toughened glass cover plate is arranged on the septic tank). Not only can concentrate rural sewage, but also can carry out resource utilization on the water which is finished. The scheme fully utilizes the characteristic of good illumination condition in northern areas, and aims at the problem that the concentration of the extracted excrement is often extremely low because the excrement is required to be extracted from a septic tank for centralized treatment by a regular cart aiming at sewage treatment facilities in part of northern rural areas.
According to the invention, the excrement in the three-stage septic tank is concentrated by sunlight, so that the conveying efficiency of the excrement is improved, and the operation cost is reduced; meanwhile, the shaking baffle is arranged in the three-stage septic tank, and the shaking of the baffle is controlled by solar energy, so that the subspace environment in the whole three-stage septic tank slightly shakes according to a preset period or preset condition, the defect that the prior art is always static is overcome, the fecal sewage treatment can be better carried out, and the fecal sewage collection, deposition, filtration and evolution efficiency is improved; the distilled water can be recycled.
While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (9)
1. A fecal sewage concentration storage device for northern rural areas, which comprises a device body (1) and a device top plate (2); the device body (1) is provided with a manure inlet (11) and a water outlet (12), and is characterized in that:
a first baffle (13), a second baffle (14) and a third baffle (15) are sequentially arranged between the excrement inlet (11) and the water outlet (12); the partition board divides the internal space of the equipment body (1) into four subspaces; the four subspaces are a first sedimentation fermentation tank (16), a second filter tank (17), a third clarifying tank (18) and a fourth distilling tank (19) respectively;
the equipment top plate (2) is a unidirectional toughened glass cover plate, and the unidirectional toughened glass cover plate covers the four subspaces;
the covering heights of the four subspaces are covered by the unidirectional toughened glass cover plate, and the covering heights are sequentially reduced along the first sedimentation fermentation tank (16), the second filter tank (17), the third clarifying tank (18) and the fourth distilling tank (19);
meanwhile, gaps exist among the unidirectional toughened glass cover plate, the first partition plate (13), the second partition plate (14) and the third partition plate (15), and subspaces where the first sedimentation fermentation tank (16), the second filter tank (17), the third clarification tank (18) and the fourth distillation tank (19) are located are communicated through the gaps;
the equipment top plate (2) is provided with a solar energy storage device (21);
a first partition plate (13) positioned between the first sedimentation fermentation tank (16) and the second filter tank (17) can shake in a first preset range (162) of a plain concrete backfill gradient layer arranged at the bottom of the second filter tank (17) close to the top of a slope;
an exhaust hole (22) is arranged in the area of the equipment top plate (2) covering the first sedimentation fermentation tank (16);
the exhaust hole (22) is connected with a micro monitor (23), and the micro monitor (23) is used for monitoring the composition and concentration of the gas exhausted by the exhaust hole (22);
the solar energy storage device (21) is used for supplying power to the micro-monitor (23), and the first partition plate (13) is controlled to shake in the first preset range (162) based on the monitoring result of the micro-monitor (23).
2. A fecal water concentration and storage device for use in northern rural areas according to claim 1, wherein:
the bottoms of the first sedimentation fermentation tank (16), the second filter tank (17) and the third clarification tank (18) are respectively provided with a plain concrete backfill gradient layer; the first gradient (160) of the plain concrete backfill gradient layer is smaller than the second gradient (20) of the equipment top plate (2) relative to the horizontal plane.
3. A fecal water concentration and storage device for use in northern rural areas according to claim 1, wherein:
the equipment body (1) is placed on the composite cushion layer;
the composite cushion layer comprises two layers, namely a plain concrete cushion layer and a sand stone cushion layer from top to bottom.
4. A fecal water concentration and storage device for use in northern rural areas according to claim 1, wherein:
and a plurality of inspection ports are arranged at the positions, close to the partition plates, of the areas where the top plates of the equipment in different subspaces are positioned.
5. A fecal water concentration and storage device for use in northern rural areas according to claim 2, wherein: a third partition plate (15) positioned between the third clarifying tank (18) and the fourth distilling tank (19) can shake in a second preset range (182) of a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank (18) and close to the bottom of the slope;
a water level meter (191) is arranged in the area of the equipment top plate (2) covering the fourth distillation pool (19);
the third partition plate (15) is controlled to shake within the second predetermined range (182) by a water level measurement result of the water level gauge (191).
6. A fecal sewage concentration and storage device for northern rural areas according to claim 4 or 5, characterized in that:
the volume of the subspace of the first sedimentation fermentation tank (16) is larger than that of the subspace of the second filter tank (17); the volume of the subspace of the third clarifying tank (18) is not smaller than the volume of the subspace of the fourth distilling tank (19).
7. A method for concentrating and treating manure water in a rural area in north, said method being based on a manure water concentration and storage device according to any one of claims 1-6;
characterized in that the method comprises the following steps:
s1: after the fecal sewage to be treated enters the first sedimentation fermentation tank from the fecal inlet, the fecal sewage sequentially passes through the second filter tank, the third clarifying tank and the fourth distilling tank;
s2: monitoring the composition and concentration of the gas exhausted from the exhaust hole through a micro monitor connected with the exhaust hole arranged on the equipment top plate covering the first sedimentation fermentation tank area according to a first preset period;
s3: judging whether the composition and concentration of the gas meet a first predetermined condition;
if so, controlling a first partition plate positioned between the first sedimentation fermentation tank and the second filter tank to shake in a first preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the second filter tank is close to the top of the slope;
otherwise, return to step S1.
8. The method for concentrating manure water in northern rural areas according to claim 7, wherein:
after the step S1, the method further includes:
s4: detecting the water level of the fourth distillation pool through a water level meter arranged in a region of the equipment top plate covering the fourth distillation pool according to a second preset period;
s5: judging whether the water level meets a second preset condition or not;
if so, controlling a third partition plate positioned between a third clarifying tank and a fourth distilling tank to shake in a second preset range, in which a plain concrete backfill gradient layer arranged at the bottom of the third clarifying tank is close to the bottom of the slope;
otherwise, return to step S1.
9. The method for concentrating manure water in a rural area in north of China according to claim 8, wherein: the second preset period is greater than the first preset period;
the steps S2-S3 are executed in parallel with the steps S4-S5;
and/or, the steps S2-S3 are performed before the steps S4-S5;
and/or, the steps S2-S3 are performed after the steps S4-S5.
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| CN206995908U (en) * | 2017-06-25 | 2018-02-13 | 云南傲远环保科技有限公司 | Anaerobic filter bed septic tank |
| CN207330610U (en) * | 2017-08-03 | 2018-05-08 | 南京农业大学 | A kind of large-scale pig farm sewage evaporation processing system |
| CN207660091U (en) * | 2017-11-23 | 2018-07-27 | 杭州浩飞管业有限公司 | A kind of septic tank |
| CN207845439U (en) * | 2017-12-26 | 2018-09-11 | 南方创业（天津）科技发展有限公司 | A kind of integrated water chemical treatment equipment |
| CN210261503U (en) * | 2019-06-28 | 2020-04-07 | 钟玉英 | Novel septic tank |
| CN111547972A (en) * | 2020-05-25 | 2020-08-18 | 安徽大学 | Three-grid septic tank adopting air pressure to detect liquid level |
| CN212770382U (en) * | 2020-06-17 | 2021-03-23 | 慈溪市德顺容器有限公司 | Combined rotational moulding septic tank |
| CN112209570A (en) * | 2020-10-09 | 2021-01-12 | 黄冈师范学院 | Biogas air screen cultivation wastewater treatment system and device |
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Denomination of invention: A fecal water concentration and storage equipment and treatment method for rural areas in northern China Effective date of registration: 20231221 Granted publication date: 20230721 Pledgee: Industrial and Commercial Bank of China Limited Guangzhou Panyu Branch Pledgor: GUANGDONG ANGWEI ENVIRONMENTAL PROTECTION INDUSTRIAL CO.,LTD. Registration number: Y2023980073526 |