CN211999038U - Biological ecological coupling processing apparatus of agricultural waste water - Google Patents
Biological ecological coupling processing apparatus of agricultural waste water Download PDFInfo
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- CN211999038U CN211999038U CN202020402066.4U CN202020402066U CN211999038U CN 211999038 U CN211999038 U CN 211999038U CN 202020402066 U CN202020402066 U CN 202020402066U CN 211999038 U CN211999038 U CN 211999038U
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Abstract
The utility model discloses an agricultural wastewater biological ecological coupling treatment device, which comprises an anaerobic reactor, an aerobic reactor and an ecological floating island; wherein the waste water inlet pipe is connected to the water inlet of the anaerobic reactor, the water outlet of the anaerobic reactor is connected to the water inlet of the aerobic reactor, the ecological floating island is positioned above the aerobic reactor, the water body of the ecological floating island and the water body of the aerobic reactor are integrated, an aeration system is arranged in the aerobic reactor, the water outlet is arranged at the upper part of the ecological floating island, and the water outlet of the ecological floating island is connected with a purified water outlet pipe. The device adopts the treatment process of the anaerobic reactor, the aerobic reactor and the ecological floating island, and improves the treatment capacity and treatment efficiency of agricultural wastewater. The utility model discloses compact structure, simple process, area are little, shock resistance is strong, operation maintenance is convenient, can supply human edible when adopting aquatic plant to purify waste water, have realized waste water discharge to reach standard and aquatic plant resource utilization.
Description
Technical Field
The utility model relates to a waste water treatment technical field specifically is a biological ecological coupling processing apparatus of agricultural waste water.
Background
With the continuous promotion of modern agriculture scale, intensification and industrialization and the great increase of daily water consumption and domestic sewage discharge of farmers, the rural environment problem is increasingly prominent, the situation is very severe, the ecological environment and drinking water safety of villages and towns are seriously affected, and the method mainly shows that the rural agriculture has prominent non-point nitrogen and phosphorus pollution, the appearance of toxic organic heavy metal pollution, and the low water quality standard reaching rate and is difficult to guarantee.
Agricultural wastewater in China mainly comes from rural domestic sewage, livestock and poultry breeding wastewater, farmland tail water and rural processing industry wastewater, and the agricultural source pollution emission accounts for half of the total pollution emission. Among agricultural source pollution, the pollution problem of livestock and poultry breeding is particularly prominent. Research shows that the livestock and poultry breeding scale in China still continues to increase, and the total breeding amount is increased by 8% per year. The discharge amount of COD (chemical oxygen demand) in the livestock and poultry breeding industry accounts for 95 percent of the discharge amount of agricultural pollution sources in 2015 year, and the discharge amount of NH (ammonia) in the livestock and poultry breeding industry3The emission of N accounts for 79% of the emission of agricultural pollution sources.
The problem of three agricultural crops is one of the core problems which puzzle the economic development, the social fairness and the realization of the national modernization of China. The clear requirements of ' Zhongzhong Central and State institutes about deeply promoting agricultural supply side structural reform and accelerating the cultivation of new kinetic energy for agricultural rural development ', the compendium of national rural environmental pollution prevention and control planning (2007-2020), ' thirteen-five ' planning for national rural environmental comprehensive treatment ' and ' three-year action scheme for rural human living environment ' and the like require accelerating the improvement of rural residences, the active popularization of sewage treatment technology with low cost, low energy consumption, easy maintenance and high efficiency is proposed, the adoption of ecological treatment technology is encouraged, the reduction of domestic sewage source and the recycling of tail water are enhanced, and the sewage treatment rate in rural China reaches more than 90% by 2030. Therefore, the problem of rural water pollution is highly valued, and effective treatment measures are taken to realize harmless treatment and resource utilization of agricultural wastewater.
Disclosure of Invention
The utility model provides a biological ecological coupling processing apparatus of agricultural waste water, compact structure, area is little, the operation maintenance is convenient, can realize waste water discharge to reach standard and aquatic plant resource utilization. .
The technical proposal of the utility model is that an agricultural wastewater biological ecological coupling treatment device comprises an anaerobic reactor, an aerobic reactor and an ecological floating island; wherein the waste water inlet pipe is connected to the water inlet of anaerobic reactor, sewage pump is still installed to inlet tube department, and the anaerobic reactor delivery port is connected to the aerobic reactor water inlet, and ecological chinampa is located the top of aerobic reactor, and the water of ecological chinampa and the water of aerobic reactor are as an organic whole, is equipped with aeration systems in the aerobic reactor, and ecological chinampa upper portion is equipped with the delivery port, and the ecological chinampa delivery port is connected the purification water outlet pipe.
Furthermore, the device is of a box body type structure, the box body is divided into two areas from the vertical direction, the anaerobic reactor is positioned in the front end area, and the aerobic reactor and the ecological floating island are positioned in the rear end area.
Furthermore, the volume ratio of the anaerobic reactor to the aerobic reactor and the ecological floating island is 3-5: 4-6: 1. Preferably 4:5: 1.
Preferably, a filter screen is arranged at a water inlet in the anaerobic reactor, a plurality of baffle plates are adopted in the anaerobic reactor to separate the anaerobic reactor into a plurality of baffling chambers, wherein each baffle plate comprises an upper baffle plate and a lower baffle plate which are arranged in parallel and staggered up and down.
Further preferably, the tail end of the lower baffle plate is bent towards the water outlet direction, and the included angle between the bent part and the vertical direction is 30-60 degrees.
Preferably, the aerobic reactor is internally provided with a biological filler, the aeration system is positioned below the biological filler, the biological filler is a combined filler and/or a multi-surface hollow sphere, the upper part of the filler is 0.5m away from the water surface, and the lower part of the filler is 0.5-1.0 m away from the bottom aeration system.
Further preferably, the filling rate of the combined filler is 70%, and the filling rate of the polyhedral hollow spheres is 50%.
Preferably, the aeration system comprises a blower and a plurality of aerators arranged in the aerobic reactor, and the blower is communicated with the aerators through air path pipes.
Preferably, the upper part of the ecological floating island is of a grid structure for fixing aquatic plants, the underwater part of the ecological floating island is of an oxidation ditch structure for wastewater treatment, and the aquatic plants are one or more of lettuce, leaf lettuce and water cress.
Preferably, the front end of the waste water inlet pipe and the rear end of the purified water outlet pipe are provided with adjusting tanks according to requirements.
The utility model discloses still have following beneficial effect:
1. the device it can be with all parts integrated to a box in, compact structure can realize burying formula setting, and area is little, and waste water pollutant concentration fluctuation range is little to its influence, and general sewage treatment plant can not adapt to the great fluctuation of pollutant concentration, and operation maintenance is convenient.
2. The device adopts a treatment process of an anaerobic reactor, an aerobic reactor and an ecological floating island, wherein the anaerobic reactor is an anaerobic baffle plate reactor, biological fillers are arranged in the aerobic reactor, aquatic plants are planted on the ecological floating island, wastewater flows up and down along baffle plates in the anaerobic baffle plate reactor and sequentially passes through a sludge bed in each baffle chamber, and organic substrates in the wastewater are removed by contacting with active microorganisms in the sludge; the wastewater after anaerobic treatment enters an aerobic reactor, aeration is carried out in the aerobic reactor through an aeration system, the oxygenated wastewater is fully contacted with a biological film on a biological filler, and the wastewater is purified under the action of the biological film; the waste water purified by the aerobic reactor enters the ecological floating island, the aquatic plants in the floating island further absorb pollutants such as nitrogen, phosphorus, heavy metals and the like in the water body, meanwhile, the microorganisms in the root systems of the plants carry out advanced treatment on the pollutants, and the water purified by the ecological floating island is discharged by the water outlet pipe up to the standard. Can improve the treatment capacity and treatment efficiency of agricultural wastewater.
3. The filter screen is arranged at the inlet of the anaerobic baffle reactor, so that large-particle impurities, scum and the like in wastewater can be removed, and the blockage of the baffling chamber in the later stage is avoided.
4. The aquatic plants planted in the ecological floating island select edible vegetables, which not only can purify water, but also can generate economic benefit, and realize standard discharge of wastewater and resource utilization of the aquatic plants.
5. The anaerobic baffle reactor is used for treating high-concentration organic wastewater; the ecological floating island is mainly used for lake and reservoir water restoration and black and odorous water restoration, and the anaerobic baffle plate reactor, the aerobic biochemical reactor and the ecological floating island are combined to realize treatment of agricultural wastewater (rural domestic sewage, livestock and poultry pig raising wastewater and the like).
Drawings
Fig. 1 is a schematic view of the front cross-sectional structure of the device of the present invention.
Fig. 2 is a schematic view of the front section structure of the anaerobic reactor of the utility model.
Fig. 3 is a top view of the ecological floating island of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
As shown in fig. 1-3, the biological ecological coupling treatment device for agricultural wastewater provided by the present invention comprises an anaerobic reactor 3, an aerobic reactor 9 and an ecological floating island 5; wherein waste water inlet tube 1 is connected to the water inlet of anaerobic reactor 3, and sewage pump 13 is still installed to inlet tube department, and anaerobic reactor 3 delivery port is connected to aerobic reactor 9 water inlet, and ecological chinampa 5 is located the top of aerobic reactor 9, and the water of ecological chinampa and aerobic reactor are as an organic whole, is equipped with aeration systems in the aerobic reactor 9, and ecological chinampa 5 upper portion is equipped with the delivery port, and ecological chinampa delivery port is connected and is purified water outlet pipe 7.
In a preferable scheme, the device is of a box body type structure, the box body is divided into two areas from the vertical direction, the anaerobic reactor is positioned in the front end area, and the aerobic reactor and the ecological floating island are positioned in the rear end area. In the initial stage of anaerobic treatment, activated sludge is placed in the reactor, and organic matters in the wastewater are degraded through the metabolic action of anaerobic bacteria; the degraded water enters an aerobic reactor, and is further degraded by using aerobic bacteria in the aerobic reactor.
Further preferably, the volume ratio of the anaerobic reactor 3, the aerobic reactor 9 and the ecological floating island is 3-5: 4-6: 1. Preferably 4:5: 1. The multifunctional box is reasonable in design, compact in structure, and convenient to install and popularize, and integrates all functions into the box body.
In another preferred scheme, a filter screen 2 is arranged at a water inlet in the anaerobic reactor 3, a plurality of baffle plates 4 are adopted in the anaerobic reactor 3 to separate the anaerobic reactor into a plurality of baffling chambers, wherein the baffle plates comprise upper baffle plates 4-1 and lower baffle plates 4-2 which are arranged in parallel and staggered up and down.
Further preferably, the tail end of the lower baffle plate is bent towards the water outlet direction, and the bending angle is 30-60 degrees. Can realize the homogenization of the wastewater and simultaneously improve the removal effect of the wastewater at the stage.
In another preferred scheme, a biological filler 8 is arranged in the aerobic reactor, the aeration system is positioned below the biological filler, the biological filler is a combined filler and/or a multi-surface hollow sphere, the upper part of the filler is 0.5m away from the water surface, and the lower part of the filler is 0.5-1.0 m away from the bottom aeration system. The filler is mainly used for microorganism enrichment and film formation.
Further preferably, the filling rate of the combined filler is 70%, and the filling rate of the polyhedral hollow spheres is 50%.
In another preferred scheme, the aeration system comprises a blower12 and a plurality of aerators 10 arranged in the aerobic reactor 9, wherein the blower 12 is communicated with the aerators 10 through an air path pipe 11. The aerator is optional ABS engineering plastics conical aerator, the aeration rate is 4~8 m/h, and the installation density is 1~ 3m2A/one; more preferably, the aeration rate of the aerator is 6 m/h, and the installation density is 2 m2A/one.
In another preferred scheme, the ecological floating island takes high polymer materials such as polyethylene or polyvinylidene fluoride as carriers and matrixes; the upper part of the ecological floating island is of a grid structure for fixing aquatic plants, and the underwater part of the ecological floating island is of an oxidation ditch structure for wastewater treatment. The aquatic plant is one or more of lettuce, leaf lettuce and water cress. Wherein the planting density of lettuce and leaf lettuce is 10-50 plants/m2The planting density of the water cress is 30-70 plants/m2(ii) a Further preferably, the planting density of lettuce and leaf lettuce is 30 plants/m2The planting density of the water cress is 50 plants/m2. The ecological floating island can select high polymer materials such as polyethylene or polyvinylidene fluoride and the like as a carrier and a substrate; wherein the lattice structure is used to immobilize aquatic plants.
In another preferred scheme, the front end of the wastewater inlet pipe 1 and the rear end of the purified water outlet pipe 7 are provided with adjusting tanks according to the treatment object and the discharge requirement.
The agricultural wastewater is pumped into the water inlet of the anaerobic reactor through a sewage pump. The device can also be provided with a controller 14 which is connected with a sewage pump and a blower of an aeration system and is used for opening, closing and adjusting the flow rate of the sewage pump, the aeration frequency and the air volume of the blower, and the device can also be manually controlled.
Example 1:
a biological ecological coupling treatment device for agricultural wastewater is a buried container structure made of carbon steel, and the treatment capacity is 2T/d. The anaerobic reactor is divided into a plurality of relatively independent chambers by baffle plates, and the width ratio of the anaerobic reactor to the aerobic reactor is 2: 3, the height ratio of the aerobic reactor to the ecological floating island is 1: 5. the biological filler in the aerobic reactor is a combined filler, the filling rate of the combined filler is 70 percent, the distance between a filler layer and an upper water layer is about 0.5m, and the lower part of the filler layer is away from the ABS engineering plastic conical aeratorIs 0.8 m; 4 aerators are arranged at the bottom of the aerobic biochemical reactor, the aeration amount of the aerator is 6 m and the aeration ratio is 1: 1. the ecological floating island uses polyvinylidene fluoride polymer material as a carrier and a substrate, the upper part is of a grid structure and used for fixing aquatic plants, and the lower part is of an oxidation ditch structure and used for wastewater treatment. The aquatic plant is herba Apii Graveolentis with planting density of 50 plants/m2。
Aiming at domestic wastewater discharged by a certain peasant household, the water quality index of the inlet water is that the COD concentration is 335mg/L and BOD5The concentration is 47.1mg/L, NH3The concentration of N was 6.58mg/L and the pH was 7.42. The agricultural wastewater biological ecological coupling treatment process and device are adopted for treatment, and the device is domesticated for one month before operation. The index of the water quality of the treated effluent is that the COD concentration is 23.8mg/L and BOD5The concentration is 7.23mg/L, NH3The concentration of N is 2.41mg/L, the pH value is 7.05, and the water quality of effluent meets the first class A emission standard in the discharge Standard of pollutants for municipal wastewater treatment plants (GB 18918-2002).
Claims (8)
1. A biological ecological coupling treatment device for agricultural wastewater is characterized by comprising an anaerobic reactor (3), an aerobic reactor (9) and an ecological floating island (5); wherein waste water inlet tube (1) is connected to the water inlet of anaerobic reactor (3), sewage pump (13) are still installed to inlet tube department, anaerobic reactor (3) delivery port is connected to aerobic reactor (9) water inlet, ecological chinampa (5) are located the top of aerobic reactor (9), and the water of ecological chinampa is as an organic whole with the water of aerobic reactor, be equipped with aeration systems in aerobic reactor (9), ecological chinampa (5) upper portion is equipped with the delivery port, and purified water outlet pipe (7) is connected to ecological chinampa delivery port.
2. The apparatus of claim 1, wherein: the device is of a box body type structure, the box body is divided into two areas from the vertical direction, the anaerobic reactor is positioned in the front end area, and the aerobic reactor and the ecological floating island are positioned in the rear end area.
3. The apparatus of claim 1, wherein: a filter screen (2) is arranged at a water inlet in the anaerobic reactor (3), the anaerobic reactor (3) is internally separated into a plurality of baffling chambers by a plurality of baffling plates (4), wherein the baffling plates comprise an upper baffling plate and a lower baffling plate which are arranged in parallel and staggered up and down.
4. The apparatus of claim 3, wherein: the tail end of the lower baffle plate is bent towards the water outlet direction, and the included angle between the bent part and the vertical direction is 30-60 degrees.
5. The apparatus of claim 1, wherein: the aerobic reactor is internally provided with biological filler, the aeration system is positioned below the biological filler, the upper part of the filler is 0.5m away from the water surface, and the lower part of the filler is 0.5-1.0 m away from the bottom aeration system.
6. The apparatus of claim 1, wherein: the aeration system comprises an air blower (12) and a plurality of aerators (10) arranged in the aerobic reactor (9), wherein the air blower (12) is communicated with the aerators (10) through an air path pipe (11).
7. The apparatus of claim 1, wherein: the upper part of the ecological floating island is of a grid structure, and aquatic plants are fixed in the grid structure.
8. The apparatus of any one of claims 1-7, wherein: the front end of the waste water inlet pipe (1) and the rear end of the purified water outlet pipe (7) are provided with adjusting tanks according to requirements.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020402066.4U CN211999038U (en) | 2020-03-26 | 2020-03-26 | Biological ecological coupling processing apparatus of agricultural waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020402066.4U CN211999038U (en) | 2020-03-26 | 2020-03-26 | Biological ecological coupling processing apparatus of agricultural waste water |
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| CN211999038U true CN211999038U (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772805A (en) * | 2021-09-17 | 2021-12-10 | 海口永祺环保设备技术有限公司 | Biological biofilm culturing device for rural sewage treatment tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772805A (en) * | 2021-09-17 | 2021-12-10 | 海口永祺环保设备技术有限公司 | Biological biofilm culturing device for rural sewage treatment tank |
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