CN217437983U - Light and medium eutrophication artificial landscape lake water body treatment equipment - Google Patents
Light and medium eutrophication artificial landscape lake water body treatment equipment Download PDFInfo
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- CN217437983U CN217437983U CN202221011274.7U CN202221011274U CN217437983U CN 217437983 U CN217437983 U CN 217437983U CN 202221011274 U CN202221011274 U CN 202221011274U CN 217437983 U CN217437983 U CN 217437983U
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Abstract
The utility model relates to a light and medium eutrophication artificial landscape lake water body treatment device. The equipment comprises an anoxic tank, an aerobic tank, a pre-sedimentation tank, a coagulation tank, a sedimentation tank, an ultraviolet disinfection device and the like; the patent also relates to a treatment method of the moderately and slightly eutrophic artificial landscape lake water body, wherein the suspension carriers are arranged in the anoxic tank to increase the sludge concentration, the lake water is mixed with the muddy water mixed liquid returned from the preliminary sedimentation tank under the action of the stirrer, and nitrate nitrogen brought in the returned mixed liquid is removed by denitrification by using denitrifying bacteria on the suspension carriers and in the sludge in the tank. The separated sewage is disinfected to reach V-class water in GB3838-2002 surface water environmental quality standard, and is suitable for water quality standard of agricultural water areas and water areas required by general landscapes, and the treated clean water is returned to the original water body again.
Description
Technical Field
The utility model relates to a light and medium degree eutrophication artificial landscape lake water treatment equipment belongs to ecological management field.
Background
A clear lake water is not only a bright landscape in a city, but also provides a playing and inhabiting place for citizens and small animals, and plays a role in improving microclimate of the surrounding environment. In recent years, with the development of social economy and the improvement of living standard of people, the artificial lake increasingly enters the lives of residents with unique ecological and landscape functions.
Compared with the water body of a natural lake, the artificial landscape lake has the characteristics of small water area, shallow water depth, relatively small water storage capacity, easy pollution, low self-purification capacity of the water body and the like. The lake bottom mud and sediments contain a large amount of nutrient substances, the underwater ecology mainly comprises algae and small aquatic plants, the large aquatic plants are fewer, and the pollution resistance and load capacity are low. However, in the operation process, as population growth, industrialization and urbanization progress are continuously developed, the water body of the artificial lake is strongly interfered by human activities, and industrial wastewater, domestic sewage and other harmful substances are discharged into the artificial lake through ground runoff. At present, under the policy of vigorously promoting ecological environment protection in China, exogenous pollution of the urban artificial lake is basically blocked, but endogenous pollution is still difficult to treat. The endogenous pollution of the lake mainly means that nutrient substances entering the lake gradually settle to the surface layer of the lake substrate through various physical, chemical and biological actions. On one hand, nitrogen and phosphorus nutrients accumulated on the surface layer of the bottom mud can be directly ingested by microorganisms, enter a food chain and participate in the circulation of an aquatic ecosystem; on the other hand, the sludge can be released from the bottom sludge and re-enter the water under certain physical, chemical and environmental conditions, thereby forming pollution load in the lake. According to investigation, most of artificial landscape lake water bodies in China still have pollution of different degrees, and the water bodies are deteriorated and eutrophicated.
The eutrophication of the water body can not only reduce the sensory intensity of the water body, but also cause excessive propagation of algae and other plankton in the water body in the eutrophication state, which leads to the reduction of dissolved oxygen in the water body, the increase of nitrogen and phosphorus, the deterioration of water quality, the increase of water chromaticity, the reduction of transparency, the death of a large amount of fishes and other organisms, the damage to the normal ecological balance of the artificial lake, and the great reduction of landscape value.
The current common treatment measures for eutrophication of artificial landscape lakes include artificial aeration, planting of large aquatic plants, and the use of artificial floating islands. The artificial aeration can recover and enhance the activity of aerobic microorganisms in the water body, so that pollutants in the water body can be purified, the release of bottom sediment phosphorus is inhibited, the treatment effect on the black and odorous river channel is good, but the energy consumption is high and the treatment effect is not ideal for artificial lakes with relatively large water areas and relatively low eutrophication degrees. The planting of large-scale aquatic plants and artificial floating islands has the defects of long effective period, difficult maintenance, easy breeding of mosquitoes and the like.
Therefore, the utility model provides a treatment method for effectively improving the water quality and the impression of the medium and light eutrophication landscape lake water body.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provide light and medium eutrophication artificial landscape lake water body treatment equipment, which comprises an anoxic tank, an aerobic tank, a pre-settling tank, a coagulation tank, a sedimentation tank, an ultraviolet disinfection device and the like;
the anoxic pond is used for introducing light and medium eutrophic artificial landscape lake water into the anoxic pond for anaerobic reaction to obtain sewage after the reaction;
the aerobic tank is used for carrying out aerobic reaction on the sewage to obtain muddy water after the aerobic reaction;
the pre-settling tank is used for pre-settling the muddy water to obtain a mixture of clear liquid and muddy water; a reflux pump is arranged at the bottom of the pre-settling tank, and the mud-water mixture is pumped into the anoxic tank;
the coagulation tank is used for coagulating the clear liquid to form a mud-water mixed liquid;
the sedimentation tank is used for settling the mud-water mixed liquid to obtain sludge and clear water, and the sludge is settled at the bottom of the sedimentation tank and is cleaned regularly;
the ultraviolet disinfection device is used for disinfecting clean water, and the disinfected clean water is discharged into lake water.
Set up oxygen deficiency pond mixer, MBBR suspension carrier in the oxygen deficiency pond, oxygen deficiency pond mixer is used for the sewage in the intensive mixing oxygen deficiency pond, set up the perforated plate between oxygen deficiency pond and the aerobic tank, sewage after the reaction in the oxygen deficiency pond gets into the aerobic tank through the perforated plate.
Set up perforation aeration pipe, good oxygen pond blower, MBBR suspension carrier in the good oxygen pond, good oxygen pond blower passes through the perforation aeration pipe of good oxygen pond bottom of the pool to the oxygen suppliment in the good oxygen pond, set up the perforated pipe between good oxygen pond and the preliminary sedimentation tank, muddy water after the good oxygen pond reaction gets into the preliminary sedimentation tank through the perforated pipe.
The device is characterized in that a guide cylinder and a reflux pump are arranged in the pre-settling tank, the pre-settling tank is subjected to initial mud-water separation by using self weight after water distribution through the guide cylinder, upper clear liquid automatically flows into the coagulation tank through the opening of the tank wall, and the reflux pump pumps a mud-water mixture into the anoxic tank.
The coagulation tank is divided into two grids, the two grids are respectively provided with a coagulation stirrer and a flocculation coagulation stirrer, an aluminum salt dosing barrel is arranged outside the coagulation tank, the salt dosing barrel is used for stirring and removing phosphorus in water through the coagulation stirrer after dosing, and the salt dosing barrel is provided with an aluminum salt stirrer and an aluminum salt dosing metering pump;
a flocculating agent dosing barrel is arranged outside the coagulation tank, the flocculating agent dosing barrel is stirred by a flocculation coagulation stirrer after dosing, and flocculation is carried out, and the flocculating agent dosing barrel is provided with a flocculating agent stirrer and a flocculating agent dosing metering pump;
after flocculation in the coagulation tank, large-particle pollutants are formed and enter a sedimentation tank.
The sedimentation tank sets up sedimentation tank play water weir, sedimentation tank pipe chute, sedimentation tank bagger, through setting up the sedimentation tank pipe chute separation large granule pollutant at the sedimentation tank middle part, and mud after the separation sinks along the sedimentation tank pipe chute, and clear water discharge sedimentation tank sets up the sedimentation tank bagger bottom the sedimentation tank, and the sedimentation is in the sedimentation tank bagger after mud falls.
A method for treating the water bodies of light and medium eutrophic artificial landscape lakes comprises the following steps;
introducing the light and medium eutrophication artificial landscape lake water into an anoxic pond for reaction, and then allowing the obtained sewage to flow into an aerobic pond;
automatically flowing the muddy water after the reaction in the aerobic tank to a pre-settling tank for settling;
enabling clear liquid at the upper part of the pre-settling tank to automatically flow into a coagulation tank through the opening of the tank wall;
pumping the mud-water mixture at the bottom of the pre-settling tank into an anoxic tank;
the pre-settled upper clear liquid flows into a coagulation tank for coagulation reaction to form a mud-water mixed liquid;
after the mud-water mixed liquid flows into a sedimentation tank, separating sludge from clear water;
the separated clear water is disinfected by an ultraviolet disinfection device and then discharged into lake water again.
The anaerobic tank is internally provided with zymophyte, denitrifying microorganism and suspension carrier, the mixing stirrer is arranged in the anaerobic tank, the suspension carrier has the specific gravity of 0.94-0.98 and the void ratio of more than 90 percent, the aerobic tank is internally provided with activated sludge capable of removing organic matters and ammonia nitrogen and the suspension carrier attached with a biological membrane, the suspension carrier has the specific gravity of 0.94-0.98 and the void ratio of more than 90 percent.
The coagulating basin is divided into two lattices, a stirrer is arranged in the two lattices, a dosing device is arranged outside the coagulating basin, aluminum salt and a flocculating agent are added through a metering pump and a pipeline, the aluminum salt is added in the first lattice, and the flocculating agent is added in the second lattice.
The sedimentation tank adopts an inclined tube sedimentation tank, the angle of the inclined tube is 60-70 degrees, and the length of the inclined tube is 800-1000 mm.
The separated sewage is disinfected to reach the V-type water in GB3838-2002 surface water environmental quality standard, is suitable for the water quality standard of agricultural water areas and water areas required by general landscapes, and the treated clean water returns to the original water body again.
The utility model has the advantages as follows:
1. the utility model discloses a MBBR oxygen deficiency/good oxygen combined process adopts the MBBR filler to combine biomembrane method and activated sludge process for the carrier to improve biomass and biological species in the reactor, and then improve the treatment effeciency of reactor. Each carrier has different biological species inside and outside, anaerobic bacteria or facultative bacteria grow inside, and aerobic bacteria grow outside, so that each carrier is a micro-reactor, nitrification reaction and denitrification reaction exist at the same time, and the treatment effect is improved.
2. The utility model discloses shock resistance and recovery power are strong, have fine adaptability and get rid of the effect to the low temperature micro-polluted water body.
3. The utility model discloses the technology load of chooseing for use is high, and it is little to take up an area of. The removal load of the pollutants is 2-3 times that of the traditional biomembrane method and activated sludge method. The treatment flow rate can be improved for medium and light eutrophication water quality so as to improve the efficiency.
4. The utility model discloses the energy consumption is low, and environmental protection and energy saving get back to former water after administering by the contaminated water, reaches green economy, sustainable development's purpose.
5. The utility model discloses a process systems can be integrated, can adopt the box integration of integration, and the installation of being convenient for can be customized into the outward appearance that fuses with the view, has practicality and aesthetic property concurrently. In the prior art, high automation can be realized, and the requirements of manual work and subsequent management and maintenance are reduced.
The above-described and other features, aspects, and advantages of the present application will become more apparent with reference to the following detailed description.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of the process apparatus of the present invention.
Reference numerals:
t1-anoxic tank, T2-aerobic tank, T3-preliminary sedimentation tank, T4-coagulation tank, T5-sedimentation tank, T6-aluminum salt dosing barrel and T7-flocculating agent dosing barrel;
m1-water inlet pump, M2-anoxic tank stirrer, M3-aerobic tank blower, M4-reflux pump, M5-sedimentation tank coagulation stirrer, M6-flocculation coagulation stirrer, M7-ultraviolet disinfection and sterilization device, M8-aluminum salt stirrer, M9-aluminum salt feeding and metering pump, M10-flocculant stirrer and M11-flocculant feeding and metering pump;
z1-perforated plate, Z2-perforated aeration pipe, Z3-perforated pipe, Z4-guide shell, Z5-sedimentation tank effluent weir, Z6-sedimentation tank inclined pipe, Z7-sedimentation tank mud bucket and Z8-MBBR suspension carrier.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.
As shown in figure 1, the device for treating the water body of the light and medium eutrophication artificial landscape lake consists of an anoxic tank, an aerobic tank, a preliminary sedimentation tank, a coagulation tank, a sedimentation tank and an ultraviolet disinfection device;
the anoxic pond is used for introducing light and medium eutrophication artificial landscape lake water into the anoxic pond for anaerobic reaction to obtain sewage after the reaction;
the aerobic tank is used for carrying out aerobic reaction on the sewage to obtain muddy water after the aerobic reaction;
the pre-settling tank is used for pre-settling the muddy water to obtain a clear liquid and muddy water mixture; a reflux pump is arranged at the bottom of the pre-settling tank, and the mud-water mixture is pumped into the anoxic tank;
the coagulation tank is used for coagulating the clear liquid to form muddy water mixed liquid;
the sedimentation tank is used for settling the mud-water mixed liquid to obtain sludge and clear water, and the sludge is settled at the bottom of the sedimentation tank and is cleaned regularly;
the ultraviolet disinfection device is used for disinfecting clean water, and the disinfected clean water is discharged into lake water.
Set up oxygen deficiency pond mixer, MBBR suspension carrier in the oxygen deficiency pond, oxygen deficiency pond mixer is used for the sewage in the intensive mixing oxygen deficiency pond, sets up the perforated plate between oxygen deficiency pond and the good oxygen pond, and the sewage after the reaction in the oxygen deficiency pond gets into good oxygen pond through the perforated plate.
The aerobic tank is internally provided with a perforated aeration pipe, an aerobic tank blower and an MBBR suspended carrier, the aerobic tank blower supplies oxygen to the aerobic tank through the perforated aeration pipe at the bottom of the aerobic tank, the perforated pipe is arranged between the aerobic tank and the pre-settling tank, and muddy water after the reaction of the aerobic tank enters the pre-settling tank through the perforated pipe.
The pre-settling tank is internally provided with a guide cylinder and a reflux pump, the pre-settling tank is subjected to initial mud-water separation by using the dead weight after water distribution through the guide cylinder, the upper clear liquid automatically flows into the coagulation tank through the opening of the tank wall, and the reflux pump pumps the mud-water mixture into the anoxic tank.
The coagulation tank is divided into two grids, the two grids are respectively provided with a coagulation stirrer and a flocculation coagulation stirrer, an aluminum salt dosing barrel is arranged outside the coagulation tank, after the salt dosing barrel is dosed, the salt dosing barrel is used for stirring and removing phosphorus in water through the coagulation stirrer, and the salt dosing barrel is provided with an aluminum salt stirrer and an aluminum salt dosing metering pump;
a flocculating agent dosing barrel is arranged outside the coagulation tank, after being dosed, the flocculating agent dosing barrel is stirred by a flocculation coagulation stirrer and flocculates, and the flocculating agent dosing barrel is provided with a flocculating agent stirrer and a flocculating agent dosing metering pump;
after flocculation in the coagulation tank, large-particle pollutants are formed and enter a sedimentation tank.
The sedimentation tank sets up sedimentation tank play water weir, sedimentation tank pipe chute, sedimentation tank bagger, through setting up the sedimentation tank pipe chute separation large granule pollutant at the sedimentation tank middle part, and mud after the separation sinks along the sedimentation tank pipe chute, and clear water discharge sedimentation tank sets up the sedimentation tank bagger bottom the sedimentation tank, and the sedimentation is in the sedimentation tank bagger after mud falls.
A method for treating the water body of light and medium eutrophication artificial landscape lake comprises the following steps;
introducing the light and medium eutrophication artificial landscape lake water into an anoxic pond for reaction, and then allowing the obtained sewage to flow into an aerobic pond;
automatically flowing the muddy water after the reaction in the aerobic tank to a pre-settling tank for settling;
enabling clear liquid at the upper part of the pre-settling tank to flow into the coagulation tank automatically through the opening of the tank wall;
pumping the mud-water mixture at the bottom of the pre-settling tank into an anoxic tank;
the pre-precipitated upper clear liquid flows into a coagulation tank for coagulation reaction to form mud-water mixed liquid;
after the mud-water mixed liquid flows into a sedimentation tank, separating sludge from clear water;
the separated clear water is disinfected by an ultraviolet disinfection device and then is discharged into lake water again.
The anaerobic tank is internally provided with zymophyte, denitrifying microorganism and suspension carrier, the mixing stirrer is arranged in the anaerobic tank, the suspension carrier has the specific gravity of 0.94-0.98 and the porosity of more than 90 percent, the aerobic tank is internally provided with activated sludge capable of removing organic matters and ammonia nitrogen and the suspension carrier attached with a biological membrane, the suspension carrier has the specific gravity of 0.94-0.98 and the porosity of more than 90 percent.
The coagulating basin is divided into two lattices, a stirrer is arranged in the two lattices, a dosing device is arranged outside the coagulating basin, aluminum salt and a flocculating agent are added through a metering pump and a pipeline, the aluminum salt is added in the first lattice, and the flocculating agent is added in the second lattice.
The sedimentation tank adopts an inclined tube sedimentation tank, the angle of the inclined tube is 60-70 degrees, and the length of the inclined tube is 800-1000 mm.
The principle of the utility model is as follows:
1. the pump pumps the artificial lake water into the MBBR anoxic tank, and because more algae and aquatic plants exist in the lake water, the separation net is arranged in front of the pump, so that the algae and the aquatic plants are prevented from entering. The suspension carrier is arranged in the anoxic tank to increase the sludge concentration, the lake water is mixed with the muddy water mixed liquid returned from the preliminary sedimentation tank under the action of the stirrer, and the nitrate nitrogen brought in the returned mixed liquid is removed by denitrification by using denitrifying bacteria on the suspension carrier and in the sludge in the tank.
2. And sewage after the anoxic reaction flows into the MBBR aerobic tank through a baffle with a perforated bottom, organic matters in the inlet water are removed by a biomembrane and suspended activated sludge on a high-efficiency suspended carrier in the tank, and the ammonia nitrogen is nitrified into nitrate nitrogen. The matched fan supplies oxygen to the aerobic tank through the perforated aeration pipe at the bottom of the aerobic tank.
3, the muddy water after the reaction of the MBBR aerobic tank automatically flows to the pre-settling tank through a perforated pipe at the water outlet side of the MBBR aerobic tank, the muddy water is initially separated by using the self weight after water distribution through the central guide cylinder, and the clear liquid at the upper part automatically flows into the coagulation tank through an opening on the tank wall. The bottom of the pre-settling tank is provided with a reflux pump for pumping the mud-water mixed liquid into the anoxic tank.
4. The pre-settled sewage flows into a coagulation tank for coagulation reaction, and aluminum salt is added into the coagulation tank to generate chemical reaction with phosphorus in water: al (Al) 3+ +PO 4 3- →AlPO 4 And removing phosphorus in the water by chemical precipitation during the production of aluminum phosphate. And adding a flocculating agent to help the generated precipitate to be collected to form large-particle pollutants.
5. The sedimentation tank adopts an inclined tube separation tank form, so that the sedimentation efficiency can be greatly increased, and the sedimentation time can be shortened. Through the pipe chute separation mud-water mixture who sets up in sedimentation tank middle part, mud sinks along the pipe chute, and clear water flows into the top overflow launder and discharges away. The bottom of the inclined tube separation tank is provided with a mud bucket, and sludge is deposited in the mud bucket after falling down and is discharged periodically.
6. And (3) separating mud and water in the precipitated water, disinfecting the separated clear water by ultraviolet rays to reach the V-class water in GB3838-2002 'surface water environmental quality standard', wherein the clear water is suitable for the water quality standard of agricultural water areas and water areas required by general landscapes, and returning the treated sewage to the water body again.
7. The anaerobic pool is internally provided with zymophyte, denitrifying microorganism and suspension carrier, and a mixing stirrer, wherein the suspension carrier has the specific gravity of 0.94-0.98 and the void ratio of more than 90%.
8. The aerobic tank is internally provided with activated sludge capable of removing organic matters and ammonia nitrogen and a suspension carrier attached with a biological membrane, wherein the specific gravity of the suspension carrier is 0.94-0.98, and the porosity is more than 90%.
9. The pre-settling tank is connected with the anoxic tank through a pump and a pipeline, and part of the mud-water mixed liquid flows back to the anoxic tank.
10. The coagulation tank is divided into two grids, a stirrer is arranged in the coagulation tank, and the coagulation tank is coagulated mechanically and has high coagulation efficiency. And the external dosing device is used for feeding aluminum salt and a flocculating agent through a metering pump and a pipeline, wherein the aluminum salt is fed into the first grid, and the flocculating agent is fed into the second grid.
11. The sedimentation tank adopts an inclined tube sedimentation tank, the angle of the inclined tube is 60-70 degrees, and the length of the inclined tube is 800-1000 mm.
12. The disinfection adopts an ultraviolet disinfection method, and the ultraviolet disinfection device is utilized to disinfect the effluent.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and the description is given here only for clarity, and those skilled in the art should integrate the description, and the embodiments may be combined appropriately to form other embodiments understood by those skilled in the art.
Claims (5)
1. The device for treating the water body of the light and medium eutrophication artificial landscape lake is characterized by comprising an anoxic pond, an aerobic pond, a pre-sedimentation pond, a coagulation pond, a sedimentation pond and an ultraviolet disinfection device;
the anoxic pond is used for introducing light and medium eutrophic artificial landscape lake water into the anoxic pond for anoxic reaction to obtain sewage after the reaction;
the aerobic tank is used for carrying out aerobic reaction on the sewage to obtain muddy water after the aerobic reaction;
the pre-settling tank is used for pre-settling the muddy water to obtain a mixture of clear liquid and muddy water; a reflux pump is arranged at the bottom of the pre-settling tank, and the mud-water mixture is pumped into the anoxic tank;
the coagulation tank is used for coagulating the clear liquid to form a mud-water mixed liquid;
the sedimentation tank is used for settling the mud-water mixed liquid to obtain sludge and clear water, and the sludge is settled at the bottom of the sedimentation tank and is cleaned regularly;
the ultraviolet disinfection device is used for disinfecting clean water, and the disinfected clean water is discharged into lake water;
the coagulation tank is divided into two grids, the two grids are respectively provided with a coagulation stirrer and a flocculation coagulation stirrer, an aluminum salt dosing barrel is arranged outside the coagulation tank, after dosing is carried out on the aluminum salt dosing barrel, the aluminum salt dosing barrel is stirred by the coagulation stirrer and removes phosphorus in water, and the aluminum salt dosing barrel is provided with an aluminum salt stirrer and an aluminum salt dosing metering pump;
a flocculating agent dosing barrel is arranged outside the coagulation tank, the flocculating agent dosing barrel is stirred by a flocculation coagulation stirrer after dosing, and flocculation is carried out, and the flocculating agent dosing barrel is provided with a flocculating agent stirrer and a flocculating agent dosing metering pump;
after flocculation in the coagulation tank, large-particle pollutants are formed and enter a sedimentation tank.
2. The equipment for treating the water body of the mild-moderate eutrophic artificial landscape lake of claim 1, wherein an anoxic pond stirrer and an MBBR suspension carrier are arranged in the anoxic pond, the anoxic pond stirrer is used for fully mixing sewage in the anoxic pond, a perforated plate is arranged between the anoxic pond and the aerobic pond, and the sewage after reaction in the anoxic pond enters the aerobic pond through the perforated plate.
3. The apparatus as claimed in claim 2, wherein the aerobic tank is provided with a perforated aeration pipe, an aerobic tank blower, and MBBR suspended carriers, the aerobic tank blower supplies oxygen to the aerobic tank through the perforated aeration pipe at the bottom of the aerobic tank, a perforated pipe is provided between the aerobic tank and the pre-settling tank, and the muddy water after the reaction in the aerobic tank enters the pre-settling tank through the perforated pipe.
4. The equipment for treating the water body of the light and medium eutrophic artificial landscape lake according to claim 3, wherein a guide cylinder and a reflux pump are arranged in the pre-settling tank, the pre-settling tank is primarily separated from sludge and water by gravity after being distributed with water through the guide cylinder, the clear liquid at the upper part automatically flows into the coagulation tank through an opening on the tank wall, and the reflux pump pumps the sludge-water mixture into the anoxic tank.
5. The device for treating the water body of the light and medium eutrophication artificial landscape lake of claim 1, wherein the sedimentation tank is provided with a sedimentation tank effluent weir, a sedimentation tank inclined tube and a sedimentation tank mud bucket, large-particle pollutants are separated by the sedimentation tank inclined tube arranged in the middle of the sedimentation tank, the separated sludge sinks along the sedimentation tank inclined tube, clear water is discharged out of the sedimentation tank, the sedimentation tank mud bucket is arranged at the bottom of the sedimentation tank, and the sludge is deposited in the sedimentation tank mud bucket after falling.
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| CN114772858A (en) * | 2022-04-28 | 2022-07-22 | 中海环境科技(上海）股份有限公司 | Equipment and method for treating water body of light and medium eutrophication artificial landscape lake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114772858A (en) * | 2022-04-28 | 2022-07-22 | 中海环境科技(上海）股份有限公司 | Equipment and method for treating water body of light and medium eutrophication artificial landscape lake |
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