CN204550332U - One way of life sewage merges purification tank ecological treatment apparatus - Google Patents

Abstract

The utility model relates to an ecological treatment device for a domestic sewage combined purification tank, which comprises a pre-filter chamber and a purification tank device room. , the pre-filtration chamber is provided with a sewage inlet pipe and a filter tank 1, and a water outlet pipe is provided at the bottom of the filter tank 1, and the outlet pipe is connected to the anaerobic tank through the inlet pipe of the anaerobic tank. pool, clean water pool, disinfection pool, aerobic pool supernatant return pipe connected to the control board, aeration plate and aerobic pool water pipe, aerobic pool supernatant return pipe through the control board, anoxic pool The water return pipe is connected with the anoxic pool, and the water lifting pipe of the aerobic pool is connected with the clean water pool through the control panel and the water inlet pipe of the clear water pool. The utility model has the characteristics of low investment, convenient maintenance and management, and strong impact load resistance, enhances biological treatment efficiency, effectively removes BOD and simultaneously removes N, P, and SS, and further realizes advanced sewage treatment.

Description

An ecological treatment device for domestic sewage combined purification tank

technical field

The utility model belongs to the technical field of environmental protection, in particular relates to the field of sewage treatment, in particular to an ecological treatment device for a domestic sewage combined purification tank.

Background technique

China is a country seriously short of water resources, and there are problems of lack of fresh water resources and increasingly serious water pollution. In particular, the discharge of domestic sewage in rural areas is increasing year by year. However, my country's low treatment capacity and backward treatment methods for rural domestic sewage are far from meeting the needs of rural economic development.

The coverage of urban sewers, sewage collection systems and sewage treatment plants in my country is relatively low. As the country's requirements for sewage discharge standards become increasingly stringent, many villas, living quarters and medium-sized enterprises other than sewage collection systems need to build independent domestic sewage treatment device. In addition, scenic areas, tourist areas, factories, mines, and military barracks also have the problem of domestic sewage being discharged on-site.

Traditional septic tanks can only pretreat sewage and cannot meet the discharge requirements. The construction of sewage treatment plants requires large investment and high operating costs. Many other rural decentralized sewage treatment technologies such as constructed wetlands, land rapid infiltration, floating beds, and stabilization ponds have been valued by scholars and researchers at home and abroad, and many improved forms have been proposed on the original basis, but each technology has its own characteristics. The disadvantages limit its popularization and application.

Since the 1990s, the septic tank technology for decentralized sewage treatment was introduced into my country from Japan and has played a certain role in the field of sewage treatment. However, there has always been the problem of large initial investment and high operating costs. Moreover, it is difficult to maintain the septic tanks after installation, resulting in many septic tanks not running after they are built or not being maintained due to insufficient maintenance during operation.

According to the national conditions of our country, explore the decentralized rural sewage treatment method according to local conditions, which not only solves the problem of domestic sewage discharge in rural areas and surrounding areas, but also fully considers the needs of sewage reuse, saves water resources, protects the water environment, and promotes rural economic development and resources. The coordination of the environment is the key to the study of rural decentralized sewage treatment technology.

Utility model content

The purpose of the utility model is to provide an ecological treatment device for domestic sewage combined purification tank with wide application, convenient maintenance and management, strong impact load resistance and space saving.

The technical solution adopted by the utility model to solve the technical problem is: a domestic sewage combined purification tank ecological treatment device, including a pre-filtration chamber and a purification tank device room, and the purification tank device room includes an anaerobic pool, anoxic pool, Aerobic pool, clean water pool, disinfection pool, control panel, the pre-filter chamber is provided with a sewage inlet pipe and a filter barrel, and the bottom of the filter barrel is provided with an outlet pipe, and the outlet pipe passes through the anaerobic pool inlet pipe and The anaerobic pool is connected, and an anoxic pool, an aerobic pool, a clear water pool, and a disinfection pool are arranged in turn after the anaerobic pool, and an aerobic pool supernatant return pipe and an aeration tank connected to the control panel are arranged in the aerobic pool. Plate and aerobic pool water pipe, the aerobic pool supernatant return pipe is connected to the anoxic pool through the control board, the return pipe of the anoxic pool, and the aerobic pool water pipe is connected through the control board, the water inlet pipe of the clear water pool and the clean water pool connection, the clear water pool is provided with a filter bucket three, the entrance of the disinfection pool is provided with a disinfection box, the disinfection pool is provided with a drain, and the disinfection pool is also connected to a water pump.

Specifically, the pre-filter chamber is arranged near the drainage pipe, the filter bucket one is located below the sewage water inlet pipe, the edge of the filter bucket one is provided with a groove for fixing the sewage water inlet pipe, the upper part of the filter bucket one is provided with a basket fine grid, and the lower part A porous filter plate 1 is provided, and the filter plate 1 is covered with a filter membrane 1 .

Specifically, the bottom of the anaerobic pool inlet pipe of the anaerobic pool is provided with a filter tank 2, and the bottom of the filter tank 2 is provided with a filter plate 2, and the filter plate 2 is covered with a filter membrane 2, and an anaerobic tank is provided in the anaerobic pool. Anaerobic tank fillers, the anaerobic tank fillers are made of carbon fiber and are in the form of strips, and there are vertically folded plates between the anaerobic tank fillers.

Specifically, the anoxic tank is provided with an anoxic tank filler, and the anoxic tank filler is carbon fiber balls.

Specifically, the aerobic tank is provided with an aerobic tank filler, and the aerobic tank filler is a porous corrugated plate.

Specifically, the lower part of the filter barrel 3 is provided with a porous filter plate 3 with a bayonet, and the filter plate 3 is covered with a filter membrane 3 .

Specifically, the three side walls of the filter barrel are provided with water outlets, and the water outlets are located lower than the sewage inlet pipe and higher than the water outlets of the anaerobic pool, the anoxic pool, the clean water pool, and the disinfection pool.

Specifically, a top cover is provided above the purification tank device room, and a triangular reinforcing steel bar is provided at the bottom of the top cover, and a solar panel is provided above the top cover, and the solar panel is connected to the control panel.

The utility model has the following beneficial effects:

1. The ecological treatment device of this utility model has the characteristics of low investment, convenient maintenance and management, and strong impact load resistance, and is suitable for combined treatment of urban and rural distributed domestic sewage.

2. The main body of the utility model device is located in a shallow underground layer, the depth is suitable for manual operation, the top cover plate is flush with the ground, and is buried around. Leakage, the upper part of each reaction pool is covered, and the operating status of the device can be checked, cleaned and adjusted at any time. Several triangular reinforcement bars are added to the top of the device room to support the top cover, which can be used as a parking lot.

3. The utility model enlarges the space of the anaerobic pool and adds folded plates in it. This design has strong impact load resistance, realizes the full anaerobic hydrolysis of sewage, enhances the biological treatment efficiency, and can effectively remove BOD and remove N at the same time. , P, SS, and further realize the advanced treatment of sewage.

4. The utility model can be made into small, medium and large according to needs: small devices are suitable for households and other small-scale decentralized sewage treatment units, and can be designed as small (1) and small (2) types according to the population; The medium-sized device is suitable for a slightly larger water unit; the large-scale device is a sewage treatment station, which can be used in both urban and rural areas. The reaction pools of various types of purification tank devices can be separated or combined into tanks. Each tank is placed separately, with a separate cover on the top, connected by valves and pipes, and the management and maintenance are also convenient and simple. For large-scale installations, each reaction pool (especially anaerobic pool) can be connected in series or in parallel to form multiple tanks to facilitate maintenance and management.

Description of drawings

Fig. 1 is a schematic structural view of the ecological treatment device of the present invention.

In the figure, 1. Sewage inlet pipe, 2. Groove, 3. Basket fine grid, 4. Filter membrane 1, 5. Filter plate 1, 6. Outlet pipe, 7. Filter barrel 1, 8. Pre-filter chamber, 9. Inlet pipe of anaerobic tank, 10. Two filter barrels, 11. Two filter plates, 12. Two filter membranes, 13. Filler for anaerobic tank, 14. Anaerobic tank, 15. Folding plate, 16. Filler for anoxic tank , 17. Anoxic pool, 18. Aerobic pool, 19. Clean water pool, 20. Disinfection pool, 21. Control panel, 22. Supernatant return pipe of aerobic pool, 23. Return pipe of anoxic pool, 24. Aeration Plate, 25. Filler for aerobic pool, 26. Water pipe for aerobic pool, 27. Water inlet pipe for clean water pool, 28. Filter bucket three, 29. Filter membrane three, 30. Filter plate three, 31. Disinfection box, 32. Drainage Mouth, 33, water pump, 34, septic tank device room, 35, solar panel, 36, top cover plate, 37, triangular reinforcing steel bar.

Detailed ways

As shown in FIG. 1 , an ecological treatment device for combined domestic sewage with a septic tank includes a pre-filter chamber 8 and a septic tank device room 34 , and the pre-filter room 8 and the septic tank device room 34 are connected by pipelines. The septic tank device room 34 can be arranged separately according to the site. A top cover 36 is arranged above the septic tank device room 34 . The bottom of the top cover 36 is provided with a triangular reinforcement bar 37 . A battery panel 35 , the solar battery panel 35 is connected to the control panel 21 . Except for the solar panel 35, the entire device is located below the ground, the depth is suitable for manual operation, the cover plate is flush with the ground, the temperature in the reaction tank is relatively constant, and it is not easily affected by external air and temperature fluctuations, providing a good breeding ground for various biochemical bacteria place. The upper part is covered separately, and the operating status of the device can be checked, cleaned, and adjusted at any time. This design breaks through the problem that the traditional purification tank is buried deep underground, the operating status is not intuitive, and it is difficult for ordinary people to operate. Several triangular reinforcing steel bars 37 are added at the top to support the top cover plate 36, which can be used as a parking lot above.

The utility model adopts only burying around the body of the device, the force of the tank body is limited, and the device can be formed into a tank with ordinary plastic at one time. This design breaks through the traditional purification tank buried deep underground and easy to leak. It can only be made of strong and expensive stainless steel, glass steel, etc. The problem of material manufacturing, while reducing the cost, it will not leak. The surroundings of the tank are buried in the soil and will not be irradiated by ultraviolet light, which delays the aging of the material, and the service life of the device will not be damaged.

The pre-filter chamber 8 is arranged near the drainage pipe, and the filter bucket-7 is located below the sewage water inlet pipe 1. The edge of the filter bucket-7 is provided with a groove 2 for fixing the sewage water inlet pipe 1, and the upper part of the filter bucket-7 is provided with a fine basket. The grille 3 is provided with a porous filter plate-5 at the bottom, and the filter plate-5 is covered with a large-pore filter membrane-4 (for example: filter paper, toilet paper, grass paper, etc.), suspended solids, solid particles, and macromolecular gelatin in the sewage Agglomerates and grease cannot pass through the filter membrane. This step has changed the situation in the traditional treatment that the sewage enters the reaction tank after being filtered by the grid, which greatly reduces the degradation load of the purification tank, solves the problem of easy blockage of the filter bed in the subsequent reaction tank, and makes the cleaning of the anaerobic biological tank Convenient and simple, do not have to rely on professionals. The reason why oil cannot pass through the filter membrane is because the filter membrane is wetted by water first, and oil is insoluble in water and lighter than water on water, so it is intercepted. Soluble and easily degradable organic carbon sources can pass through the filter membrane to provide sufficient organic carbon sources for subsequent reactions. Compared with the microfiltration membrane, the large pore diameter membrane material is economical and easy to obtain, and the treatment effect is good.

The purification tank device room 34 includes anaerobic pool 14, anoxic pool 17, aerobic pool 18, clear water pool 19, disinfection pool 20, control panel 21, and the pre-filter chamber 8 is provided with a sewage inlet pipe 1 and a filter barrel -7, the bottom of the filtering barrel-7 is provided with an outlet pipe 6, and the outlet pipe 6 is connected with the anaerobic pool 14 through the anaerobic pool inlet pipe 9, and the anoxic pool 17, An aerobic pool 18, a clear water pool 19, and a disinfection pool 20. The aerobic pool 18 is provided with an aerobic pool filler 25, and the aerobic pool filler 25 is a porous corrugated plate. The aerobic tank 18 is provided with an aerobic tank supernatant return pipe 22 connected to the control board 21, an aeration plate 24 and an aerobic tank water extraction pipe 26, and the aerobic tank supernatant return pipe 22 passes through the control board 21 1. The anoxic pool return pipe 23 is connected with the anoxic pool 17, the anoxic pool filler 16 is arranged in the anoxic pool 17, the anoxic pool filler 16 is a carbon fiber ball, and the aerobic pool lift pipe 26 The control panel 21 and the water inlet pipe 27 of the clear water pool are connected to the clear water pool 19, the clear water pool 19 is provided with a filter barrel 3 28, and the lower part of the filter barrel 3 28 is provided with a porous filter plate 3 30 with bayonet to filter Plate three 30 is covered with filter membrane three 29. The side wall of the filter bucket three 28 is provided with a water outlet, and the position of the water outlet is lower than the sewage inlet pipe 1 and higher than the water outlets of the anaerobic pool 14, the anoxic pool 17, the clear water pool 19, and the disinfection pool 20, without power supply , the sewage is filtered and discharged by itself. A disinfection box 31 is provided at the entrance of the disinfection pool 20 , a water outlet 32 is provided in the disinfection pool 20 , and a water pump 33 is also connected to the disinfection pool 20 .

The bottom of the anaerobic pool inlet pipe 9 of the anaerobic pool 14 is provided with a filter bucket two 10, and the bottom of the filter bucket two 10 is provided with a filter plate two 11, and the filter plate two is covered with a filter membrane two 12, and the anaerobic pool 14 is provided with anaerobic tank filler 13, said anaerobic tank filler 13 is made of carbon fiber, in strip shape, and vertically provided with folding plate 15 between anaerobic tank filler 13. Increase the space of the anaerobic tank 14, and add a folded plate 15 therein, and fix the position of the folded plate by whether the lower part of the strip filter material is connected or not. As a combined sewage purification tank device, the sewage contains rich organic carbon sources. The space of the anaerobic tank in the traditional purification tank is small, the sewage cannot be fully anaerobic hydrolyzed or due to internal circulation, the sewage directly enters the anoxic tank without anaerobic hydrolysis, and the phosphorus-releasing bacteria cannot fully anaerobically release phosphorus. Enlarging the space of the anaerobic biological pool and setting the folding plate can allow the sewage to undergo sufficient anaerobic hydrolysis. The organic matter in the sewage is degraded by the anaerobic microbial film attached to the filler. If the anaerobic hydrolysis is sufficient, the polymer in the sewage is difficult to degrade. Organic matter can basically be completely transformed into low-molecular-weight organic matter that is easily degraded. At the same time, phosphorus-releasing bacteria release phosphorus fully anaerobically in an anaerobic environment. Phosphorus-releasing bacteria can absorb excess phosphorus in anoxic and aerobic pools only after fully releasing phosphorus. This step can improve the removal rate of phosphorus in aerobic pools. If necessary, acetate can be added to the anaerobic tank to improve the efficiency of anaerobic phosphorus release. The residence time of sewage in the anaerobic tank should be more than 48 hours.

The utility model does not set sludge backflow to prevent anaerobic hydrolysis due to oxygen in the backflow sludge water of the aerobic pool, and only according to the operating conditions, the solid sludge intercepted in the filter tank 3 is returned to the unfilled filter in the forebay of the anaerobic pool as needed. material part. Sufficient activated sludge can improve the efficiency of anaerobic hydrolysis, and this design can also be used for upgrading of sewage treatment plants and sewage treatment stations.

During operation, the sewage first enters the filter barrel-7 in the pre-filtration chamber 8, and the suspended solids, solid particles, macromolecular bacteria micelles and grease in the water cannot pass through the filter membrane 14, which greatly reduces the degradation load of the purification tank and solves the problem. The clogging problem that is easy to occur in the filter bed in the subsequent reaction pool is eliminated; while the soluble and easily degradable organic carbon source substances can pass through the filter membrane to provide sufficient organic carbon source for the subsequent reaction. The intercepted matter in the filter barrel-7 needs to be cleaned regularly. When cleaning, the intercepted matter in the filter barrel-7 is buckled out of the barrel, and placed in another centralized place as organic fertilizer. The anaerobic tank 14 is composed of filter barrel 2 10, folded plate 15 and anaerobic tank filler 13. The anaerobic tank filler 13 adopts economical carbon fiber or composite filler. After the carbon fiber or composite filler is impacted by the influent load, it can Relatively quick acclimatization and high microbial activity on the filler. The filler is made into a strip, and the bottom is made into a connected or unconnected form as required to facilitate the insertion of the folding plate 15. The filter membrane 12 of the filter barrel 2 10 can further filter suspended solids, solid particles, macromolecular bacteria micelles and grease in the sewage. When cleaning, the filter barrel 2 10 intercepted material is buckled out of the barrel or the filter plate 2 11 at the bottom is manually pushed out, and the retained material is also centrally placed as an organic fertilizer. The anaerobic tank 14 is provided with a folding plate 15, which can prevent the sewage from fully performing anaerobic reaction, or directly entering the anoxic tank 17 without anaerobic reaction due to internal circulation. The organic matter in the sewage is degraded by the anaerobic microbial film attached to the anaerobic tank filler 13. If the anaerobic hydrolysis is sufficient, the high-molecular and difficult-to-degrade organic matter in the sewage can basically be converted into low-molecular and easy-to-degrade organic matter. At the same time, phosphorus-releasing bacteria release phosphorus anaerobically in an anaerobic environment. Microorganisms or natural plant bacteria liquid can be added in the anaerobic tank filler 13 to remove the peculiar smell in the sewage. The anaerobic tank 14 is not provided with sludge backflow, and the solid sludge intercepted in the filter tank three 28 is directly added according to the operation of the anaerobic tank 14, so as to prevent the oxygen in the backflow sludge water from affecting the anaerobic hydrolysis reaction. Sufficient activated sludge can improve the efficiency of anaerobic hydrolysis. The effluent from the anaerobic tank 14 enters the anoxic tank 17, the anoxic tank 17 is provided with an anoxic biological filter bed, and the filler 16 of the anoxic tank is filled with economical carbon fiber balls, and biochemical bacteria adhere to the filler to continue to biochemically degrade the sewage. The anoxic tank 17 mainly reacts the ammonia produced by the hydrolysis of the anaerobic tank 14 with the nitrate returned from the aerobic tank 18 to generate nitrogen gas to escape and remove nitrogen. The effluent from the anoxic pool 17 enters the aerobic pool 18, and the aerobic biological filter bed filler 25 in the aerobic pool 18 is filled with porous corrugated plates. The porous corrugated plates can not only hang membranes, but also effectively cut air bubbles, improving the transfer rate and utilization of oxygen . The water and gas biofilm can be fully exchanged, and the organic matter in the water can be efficiently treated. The phosphorus-releasing bacteria in the aerobic pool 18 absorb phosphorus, precipitate in the form of sludge, and separate from the sewage, and part of the supernatant from the aerobic pool 18 returns to the anoxic pool 17. The length of the water extraction pipe 26 in the aerobic pool can be adjusted. It is used to extract the supernatant during daily operation, and can extract the precipitated sludge during cleaning and maintenance. The activated sludge in the aerobic tank 18 is filtered. When cleaning, turn the filter barrel 3 28 intercepted upside down out of the barrel or manually push out the filter plate 3 30 at the bottom. The retained sludge can be directly added to the non-filler part of the anaerobic tank 14 according to the operating conditions of the anaerobic tank 14, and the rest of the retained sludge is stored as phosphate fertilizer. Other each pond sludge output is not big, during routine maintenance, according to operation situation, also available aerobic pond lifts water pipe 26 extraction and cleans up. All the other aerobic pool water is extracted by the aerobic pool water pipe 26, and enters the clear water pool 19 through the clear water pool inlet pipe 27, the filtering bucket three 28 filters, and the clear water pool 19 outlet water enters the disinfection pool 20. A disinfection box 31 is arranged at the entrance of the disinfection pool 20, and a solid disinfection product is placed, and the clean water pool 19 is disinfected when the water flows in. This step can be selected according to the requirements of effluent reuse. Disinfection tank 20 can be discharged into sewer or environmental waters through outlet 32, and can also be extracted by water pump 33 and reused by solar panel 35, and can also be manually extracted for reuse.

The operation of the device is controlled by the menu on the control panel 21. There are a total button and a step-by-step button, which can operate according to the design program, and can also adjust the step-by-step button operation according to needs. Wherein, the effluent of the aerobic pool 18 flows back into the anoxic pool 17, and the effluent of the aerobic pool 18 enters the filter tank 2 10, which are all controlled by step buttons on the control panel 21, and also controlled by the master button. The power consumption of the control board 21 is provided by the solar panel 35 .

The filter barrel 328 side wall of the device is provided with a water outlet, which is lower than the water inlet of the device, and higher than the water outlets of the anaerobic pool 14, the anoxic pool 17, the clear water pool 19 and the disinfection pool 20. When there is no power supply, the sewage is filtered by itself. Row.

The utility model is not limited to the above-mentioned embodiment, and anyone should know that the structural changes made under the enlightenment of the utility model, all technical solutions that are the same as or similar to the utility model, all fall within the scope of protection of the utility model Inside.

The technologies, shapes and construction parts not described in detail in the utility model are all known technologies.

Claims (8)

1. one way of life sewage merges purification tank ecological treatment apparatus, it is characterized in that, comprise pre-filtering room and purification tank device room, described purification tank device room comprises anaerobic pond, anoxic pond, Aerobic Pond, clean water basin, sterilization pool, switchboard, described pre-filtering room is provided with sewage water inlet pipe and filter vat one, rising pipe is provided with bottom described filter vat one, described rising pipe is connected with anaerobic pond by anaerobic pond water inlet pipe, anoxic pond is provided with successively after described anaerobic pond, Aerobic Pond, clean water basin, sterilization pool, the Aerobic Pond supernatant liquor return line be connected with switchboard is provided with in described Aerobic Pond, aeration board and Aerobic Pond water lift pipe, described Aerobic Pond supernatant liquor return line is through switchboard, anoxic pond return water pipe is connected with anoxic pond, described Aerobic Pond water lift pipe is through switchboard, clean water basin water inlet pipe is connected with clean water basin, filter vat three is provided with in described clean water basin, the ingress of described sterilization pool is provided with sterilizing case, described sterilization pool is provided with water port, sterilization pool is also connected with water pump.

2. sanitary sewage according to claim 1 merges purification tank ecological treatment apparatus, it is characterized in that, described pre-filtering room is arranged near drainage pipeline, filter vat one is positioned at below sewage water inlet pipe, the edge of filter vat one is provided with the groove for fixing sewage water inlet pipe, filter vat one top arranges hand basket fine fack, and bottom arranges poroid screen plate one, screen plate one is coated with filter membrane one.

3. sanitary sewage according to claim 1 merges purification tank ecological treatment apparatus, it is characterized in that, the below of the anaerobic pond water inlet pipe of described anaerobic pond is provided with filter vat two, screen plate two is provided with bottom filter vat two, screen plate two is coated with filter membrane two, is provided with anaerobic pond filler in described anaerobic pond, described anaerobic pond filler adopts carbon fibre, in strip, between anaerobic pond filler, be vertically provided with flap.

4. sanitary sewage according to claim 1 merges purification tank ecological treatment apparatus, and it is characterized in that, be provided with anoxic pond filler in described anoxic pond, described anoxic pond filler is carbon fibre ball.

5. sanitary sewage according to claim 1 merges purification tank ecological treatment apparatus, and it is characterized in that, be provided with Aerobic Pond filler in described Aerobic Pond, described Aerobic Pond filler is protruded ripple plate.

6. sanitary sewage according to claim 1 merges purification tank ecological treatment apparatus, and it is characterized in that, described filter vat three bottom is provided with poroid screen plate three with bayonet, screen plate three is covered with filter membrane three.

7. sanitary sewage according to claim 6 merges purification tank ecological treatment apparatus, it is characterized in that, described filter vat three sidewall sets out the mouth of a river, and the position of described water outlet is lower than sewage water inlet pipe and higher than the water outlet of anaerobic pond, anoxic pond, clean water basin, sterilization pool.

8. sanitary sewage according to claim 1 merges purification tank ecological treatment apparatus, it is characterized in that, top blind flange is provided with above described purification tank device room, triangle reinforced steel is provided with bottom described top blind flange, be provided with solar panel above top blind flange, described solar panel is connected with switchboard.