CN209872669U - Dephosphorization and denitrification equipment with mud-water separation function - Google Patents
Dephosphorization and denitrification equipment with mud-water separation function Download PDFInfo
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- CN209872669U CN209872669U CN201920197036.1U CN201920197036U CN209872669U CN 209872669 U CN209872669 U CN 209872669U CN 201920197036 U CN201920197036 U CN 201920197036U CN 209872669 U CN209872669 U CN 209872669U
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Abstract
The utility model discloses a dephosphorization and denitrification equipment with mud-water separation function. A large amount of suspended matters exist in the treated sewage, and the suspended matters are removed by the existing biological denitrification process. The utility model discloses a module of intaking, dephosphorization desilt system, denitrogenation system and play water recoil module. The phosphorus and mud removing system comprises a phosphorus and mud removing floating pool, a partition plate, a drainage plate, a flow dividing three-way pipe, a phosphorus removing agent adding component, a sludge treatment system and a backflow gas dissolving system. The water inlet module comprises a sewage collecting tank and a sewage lifting pump. The sludge treatment system comprises a clear water separation pipeline, a slag scraper, a sludge transition box, a sludge flow channel, a sludge storage box, a sludge pressing pump and a filter press; the backflow gas dissolving system comprises a gas dissolving pump, a gas dissolving tank body, a backflow pump and a backflow water outlet pipe. The utility model adds the phosphorus removing agent into the treated wastewater before mud-water separation; the phosphorus removing agent adsorbs flocculate formed by the phosphorus-containing compounds in the process of being treated, and can be removed in the process of sludge-water separation.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection equipment, concretely relates to dephosphorization denitrogenation equipment that possesses mud-water separation function.
Background
Water is an extremely important natural resource and a strategic economic resource. According to the analysis of Chinese water resource market, Chinese water resources are scarce, and per capita fresh water resources are only one fourth of the world average fresh water resources. At present, two thirds of cities in China have insufficient water supply and one sixth of the cities have serious water shortage. In addition, with the development of modern industry and the improvement of the living standard of people, various industrial wastewater and domestic sewage which are discharged in large quantity cause serious pollution to water bodies, the water quality generally declines, and particularly the problems of nitrogen pollution and water eutrophication are increasingly serious. According to statistics, the ammonia nitrogen is in the third place in main pollution indexes of seven water systems and key lakes and reservoirs in China, and becomes a main form of nitrogen pollution of water bodies. The shortage of water resources and the serious water pollution can not only inhibit the economic development, but also threaten the balance of the ecological environment and the survival of human beings.
In the face of such serious situation, in order to solve the problem of nitrogen pollution in water, the sewage treatment plant in China generally adopts the traditional biological denitrification process-nitrification-denitrification process. However, the traditional nitrification and denitrification biological nitrogen removal process has the defects of long process flow, large oxygen consumption, additional carbon source, high sludge yield and the like. Meanwhile, a large amount of suspended matters often exist in the treated sewage, and the suspended matters are removed by the existing biological denitrification process. Therefore, it is very important to design a sewage treatment device capable of removing suspended matters while removing nitrogen and phosphorus.
Disclosure of Invention
An object of the utility model is to provide a dephosphorization denitrogenation equipment that possesses mud-water separation function.
The utility model discloses a module of intaking, dephosphorization desilt system, denitrogenation system and play water recoil module. The phosphorus and mud removing system comprises a phosphorus and mud removing floating pool, a partition plate, a drainage plate, a flow dividing three-way pipe, a phosphorus removing agent adding component, a sludge treatment system and a backflow gas dissolving system. And a partition plate is arranged in the phosphorus removal floating mud tank. The phosphorus removal floating mud tank is divided into a phosphorus removal area and a mud-water separation area by the partition plate. The bottom of the partition plate is provided with a liquid through port. And a drainage plate is fixed at the bottom of the mud-water separation area. The bottom of drainage plate is close to the logical liquid mouth setting of division board, and the one side of removing the phosphorus district is kept away from to the top slope orientation.
The water inlet module comprises a sewage collecting tank and a sewage lifting pump. The water inlet of the sewage lift pump is communicated with the inner cavity of the sewage collecting tank, and the water outlet of the sewage lift pump is connected with the water inlet at the top of the dephosphorization zone in the dephosphorization sludge floating tank. The phosphorus removing agent adding assembly comprises a phosphorus removing dosing box and a dosing pump. The medicine outlet of the dephosphorization dosing box is communicated with the water inlet of the dosing pump. The water outlet of the dosing pump is connected with a dosing port at the top of the dephosphorization zone in the dephosphorization floating sludge tank.
The sludge treatment system comprises a clear water separation pipeline, a slag scraper, a sludge transition box, a sludge flow channel, a sludge storage box, a sludge pressing pump and a filter press; the slag scraper is arranged at the top of the mud-water separation zone. The sludge transition box is fixed in the sludge-water separation zone and is positioned below the end of the sludge scraper far away from the phosphorus removal zone. One end of the sludge flow channel is connected with a sludge output port at the bottom of the sludge transition box, and the other end of the sludge flow channel is connected with the top of the inner cavity of the sludge storage box. The bottom of the sludge storage box is provided with a sludge outlet. The input port of the mud-pressing pump is connected with the mud storage box, and the output port is connected with the mud input port of the filter press. And a clear water separation pipeline is arranged at the bottom of the mud-water separation area. The clear water separation pipeline is provided with a clear water inlet. And a clear water outlet of the clear water separation pipeline is connected with a first water through port of the shunt three-way pipe.
The backflow air dissolving system comprises an air dissolving pump, an air dissolving tank body, a backflow pump and a backflow water outlet pipe. The top of the gas dissolving tank body is provided with a first-stage backflow inlet and a second-stage backflow inlet, and the bottom of the gas dissolving tank body is provided with a backflow outlet and a gas-enriched water outlet. The water inlet of the reflux pump is connected with the second water through hole of the three-way flow dividing pipe. The water outlet of the reflux pump is connected with a first-stage reflux inlet at the top of the dissolved gas tank body. And a backflow outlet at the top of the dissolved air tank body is connected with a liquid inlet of the dissolved air pump. The output port of the dissolved air pump is connected with the second-stage backflow inlet of the dissolved air tank body. The air-increasing water outlet of the air-dissolving tank body is connected with the water inlet end of the backflow water outlet pipe. The water outlet end of the backflow water outlet pipe is positioned between the partition plate and the drainage plate. The wastewater treatment module comprises a biological ultra-filter, a transition pump, an aeration pipe and an ultrafiltration membrane. And a sewage inlet of the biological super filter is connected with a third water through hole of the three-way flow dividing pipe. An aeration pipe is arranged at the bottom of the inner cavity of the biological super filter. The ultrafiltration membrane is arranged in the biological ultrafiltration pool.
The microorganism feeding module comprises a microorganism incubator and a microbial inoculum transmission pump. The microorganism culture device is internally provided with denitrification microorganisms. The bottom of the microorganism culture device is provided with a water outlet. The water outlet of the microorganism incubator is communicated with the water inlet of the microbial inoculum transmission pump. The water outlet of the microbial inoculum transmission pump is connected with a microbial inoculum feeding port at the top of the reaction tank. The water outlet backflushing module comprises an overflow water tank, a backflushing water pump and an output water pump. The water outlet of the backwashing water pump and the water inlet of the output water pump are both connected with the water outlet of the ultrafiltration membrane. The water inlet of the back flushing water pump and the water outlet of the output water pump are respectively connected with the back flushing water outlet and the clear water inlet of the overflow water tank.
Furthermore, a flow sensor and an on-off valve are arranged between the water outlet of the sewage lifting pump and the water inlet of the phosphorus removal floating mud tank. An on-off valve is arranged between the water outlet of the dosing pump and a dosing port at the top of the dephosphorization zone in the dephosphorization floating sludge tank. An on-off valve is arranged between the input port of the mud pressing pump and the mud storage tank. An on-off valve is arranged between the output port of the mud pressing pump and the sludge input port of the filter press. A flowmeter and an on-off valve which are connected in series are arranged between the water inlet of the reflux pump and the second water through opening of the flow dividing three-way pipe. An on-off valve is arranged between the water outlet of the reflux pump and the first-stage reflux inlet at the top of the dissolved gas tank body. And a backflow outlet at the top of the dissolved air tank body and a liquid inlet of the dissolved air pump are provided with on-off valves. An on-off valve and a flowmeter are arranged between the output port of the dissolved air pump and the second-stage reflux inlet of the dissolved air tank body. An on-off valve is arranged between the water outlet of the microbial inoculum transmission pump and the microbial inoculum feeding port at the top of the reaction tank. And an on-off valve, a manual valve and a flowmeter are arranged between the aeration water output port of the dissolved air tank body and the water inlet end of the backflow water outlet pipe.
Furthermore, the backflow air dissolving system also comprises a pressure-regulating air pump. The top of the gas dissolving tank body is also provided with a pressure regulating port. And the air outlet of the pressure regulating air pump is connected with a pressure regulating port on the dissolved air tank body.
Further, the ultrafiltration membrane is tubular. The ultrafiltration membrane is made of polyethylene. The aperture of the filtering hole on the ultrafiltration membrane is 0.22 μm.
Furthermore, the microorganism incubator is filled with water and is provided with a plurality of thallus culture boxes. The bacteria culture box is internally provided with denitrifying microorganisms and a solid culture medium. The denitrifying microorganism is aerobic nitrobacteria and aerobic denitrifying bacteria.
Furthermore, the aeration pipe is provided with a nanometer aeration hole. And a phosphorus removal agent is filled in the phosphorus removal dosing box.
Further, the slag scraper comprises a conveying wheel, a conveying wheel and a slag scraping plate. The two conveying wheels are respectively supported at the two ends of the top of the mud-water separation area and are connected through the conveying belt. The plurality of slag scraping plates are uniformly distributed and fixed on the outer side surface of the conveying belt.
Furthermore, a plurality of obliquely arranged spoilers are arranged in the dissolved air tank.
Furthermore, the drainage plate and the bottom surface of the phosphorus and mud removing area form an included angle of 60 degrees.
The utility model has the advantages that:
1. the utility model discloses a to being handled the high pressure injection air in the waste water for slight bubble with by the suspended solid come-up in the waste water of handling, and then realized striking off of suspended solid.
2. The utility model adds the phosphorus removing agent into the treated wastewater before mud-water separation; the floc formed by phosphorus-containing compounds in the phosphorus removal agent adsorption treatment can be removed in the mud-water separation process, so that the secondary pollution generated by phosphorus removal operation is avoided.
3. The utility model provides an milipore filter not only plays the function of impurity in the filtration water, can also remain denitrogenation microorganism in biological super filter, avoids the loss of good oxygen denitrifying bacteria, has reduced the cost of throwing the denitrogenation microorganism of throwing.
4. The utility model discloses in be provided with the microorganism and throw the material module, its automatic culture that can realize denitrogenation microorganism, and then can provide continuous denitrogenation microorganism for the biological super filter, make the utility model discloses a denitrogenation efficiency keeps at higher level.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in FIG. 1, a dephosphorizing and denitrifying device with a mud-water separation function comprises a water inlet module, a dephosphorizing and desliming system, a denitrifying system and an effluent backflushing module. The phosphorus and mud removing system comprises a phosphorus and mud removing floating pond 1, a partition plate 2, a drainage plate 7, a shunt three-way pipe 20, a phosphorus removing agent adding component, a sludge treatment system and a backflow gas dissolving system. A partition plate 2 is arranged in the phosphorus removal floating mud tank 1. The division plate 2 divides the phosphorus removal floating mud pool 1 into a phosphorus removal area and a mud-water separation area. The bottom of the partition plate 2 is provided with a liquid through port. A drainage plate 7 is fixed at the bottom of the mud-water separation area in the phosphorus removal floating mud tank 1. The bottom of drainage plate 7 is close to the liquid through-hole setting of division board 2, and the one side of removing the phosphorus district is kept away from to the top slope orientation. The drainage plate 7 and the bottom surface of the phosphorus and mud removing area form an included angle of 60 degrees. The drainage plate 7 can enable the treated sewage entering the sludge-water separation area from the phosphorus removal area to flow obliquely upwards along the drainage plate 7. The water inlet module comprises a sewage collecting tank 3 and a sewage lifting pump 4. The sewage lift pump 4 is arranged in the sewage collecting tank 3. The water inlet of the sewage lift pump 4 is communicated with the inner cavity of the sewage collecting tank 3, and the water outlet of the sewage lift pump is connected with the water inlet at the top of the dephosphorization zone in the dephosphorization floating mud tank 1 through a flow sensor and an on-off valve which are connected in series.
The phosphorus removing agent adding component comprises a phosphorus removing dosing box 5 and a dosing pump 6. The phosphorus removal dosing box 5 is filled with a phosphorus removal agent. The phosphorus removal agent adopts a lanthanum chloride solution. A medicine outlet at the bottom of the dephosphorization dosing box 5 is communicated with a water inlet of the medicine feeding pump 6. The water outlet of the dosing pump 6 is connected with a dosing port at the top of the dephosphorization zone in the dephosphorization floating sludge pond 1 through an on-off valve.
The sludge treatment system comprises a clear water separation pipeline 14, a slag scraper 8, a sludge transition box 9, a sludge flow channel 10, a sludge storage tank 11, a mud pressing pump 12 and a filter press 13; the slag scraper 8 comprises a conveying wheel, a conveying wheel and a slag scraping plate. The two conveying wheels are respectively supported at the two ends of the top of the mud-water separation area and are connected through the conveying belt. The plurality of slag scraping plates are uniformly distributed and fixed on the outer side surface of the conveying belt. One of the transmission wheels is driven by a motor. The sludge transition box 9 is fixed in the sludge-water separation zone and is positioned below the end of the sludge scraper 8 far away from the phosphorus removal zone. One end of the sludge flow channel 10 is communicated with a sludge output port at the bottom of the sludge transition box 9, and the other end is communicated with the top of an inner cavity of the sludge storage box 11. The bottom of mud storage box 11 is the infundibulate, and the mud export has been seted up to the lower extreme. The input port of the mud-pressing pump 12 is connected with the mud storage tank 11 through an on-off valve, and the output port is communicated with the mud input port of the filter press 13 through an on-off valve. The bottom of the mud-water separation area is provided with a clean water separation pipeline 14. The clear water separation pipeline 14 is provided with a plurality of clear water inlets. The end of the clean water separation pipeline 14 far away from the drainage plate 7 is provided with a clean water outlet. The clear water outlet of the clear water separation pipeline 14 is connected with the first water opening of the shunt three-way pipe 20.
The backflow air dissolving system comprises an air dissolving pump 15, an air dissolving tank 16, a backflow pump 17, a backflow water outlet pipe 18 and a pressure regulating air pump 19. The top of the gas dissolving tank body 16 is provided with a pressure regulating port, a first-stage backflow inlet and a second-stage backflow inlet, and the bottom is provided with a backflow outlet and a gas-enriched water outlet. A plurality of obliquely arranged spoilers are arranged in the air dissolving tank body 16. The air outlet of the pressure-regulating air pump 19 is connected with a pressure-regulating port on the dissolved air tank 16, so as to control the air pressure in the dissolved air tank 16. The water inlet of the reflux pump 17 is connected with the second water port of the shunt three-way pipe 20. A flow meter and an on-off valve which are connected in series are arranged between the water inlet of the reflux pump 17 and the second water through opening of the flow dividing three-way pipe 20. The water outlet of the reflux pump 17 is connected with the first-stage reflux inlet at the top of the dissolved gas tank 16 through an on-off valve.
The reflux outlet at the top of the dissolved air tank body 16 is connected with the liquid inlet of the dissolved air pump 15 through an on-off valve. The gas inlet of the dissolved air pump 15 is connected to the outside air. The output port of the dissolved air pump 15 is connected with the second-stage backflow inlet of the dissolved air tank body 16 through a series-connected on-off valve and a flow meter. The aeration water output port of the air dissolving tank 16 is connected with the water inlet end of the backflow water outlet pipe 18 through a series connection on-off valve, a manual valve and a flowmeter. The water outlet end of the backflow water outlet pipe 18 is positioned between the partition plate 2 and the drainage plate 7. The spoiler in the dissolved air tank 16 can make the treated wastewater in the dissolved air tank 16 passing through the dissolved air pump 15 and the treated wastewater not passing through the dissolved air pump 15 be mixed uniformly.
The wastewater treatment module comprises a biological ultra-filtration tank 21, a transition pump 22, an aeration pipe, an aeration fan 23 and an ultrafiltration membrane 24. The sewage inlet of the biological super filter 21 is connected with the third water port of the three-way flow dividing pipe 20. An aeration pipe is arranged at the bottom of the inner cavity of the biological super filter 21. The aeration pipe is provided with a nanometer aeration hole. The air inlet of the aeration pipe is connected with the air outlet of the aeration fan 23. The ultrafiltration membrane 24 is arranged in the biological ultrafiltration filter 21. The ultrafiltration membrane 24 is tubular. The ultrafiltration membrane 24 is made of polyethylene. The pore diameter of the filtration pores on the ultrafiltration membrane 24 is 0.22 μm.
The microorganism feeding module comprises a microorganism incubator 25 and a microbial inoculum transfer pump 26. The microbial culture vessel 25 is filled with water and is provided with a plurality of cell culture boxes. The bacteria culture box is internally provided with denitrifying microorganisms and a solid culture medium. The denitrifying microorganism is aerobic nitrobacteria and aerobic denitrifying bacteria. The top of the microorganism culture device 25 is provided with a water inlet, and the bottom is provided with a water outlet. The water outlet of the microorganism incubator 25 is communicated with the water inlet of the microbial inoculum transfer pump 26. The water outlet of the microbial inoculum transmission pump 26 is connected with a microbial inoculum feeding port at the top of the reaction tank through an on-off valve.
The outlet backwash module includes an overflow tank 27, a backwash water pump 28 and an outlet water pump 29. The water outlet of the back flushing water pump 28 and the water inlet of the output water pump 29 are both connected with the water outlet of the ultrafiltration membrane 24. The water inlet of the back flushing water pump 28 and the water outlet of the output water pump 29 are respectively connected with the back flushing water outlet and the clear water inlet of the overflow water tank 27. An on-off valve is arranged between the water outlet of the back flushing water pump 28 and the water outlet of the ultrafiltration membrane 24. An on-off valve is arranged between the water inlet of the back flushing water pump 28 and the back flushing water outlet of the overflow water tank 27. An on-off valve is arranged between the water outlet of the output water pump 29 and the water outlet of the ultrafiltration membrane 24. An on-off valve is arranged between the water inlet of the output water pump 29 and the clean water inlet of the overflow water tank 27.
The working principle of the utility model is as follows:
firstly, injecting high-turbidity and high-phosphorus wastewater to be treated into a sewage collecting tank 3 through a sewage discharge outlet; the sewage lift pump 4 is started and the corresponding on-off valve is opened. The treated wastewater of the sewage collecting tank 3 enters a phosphorus removal area of the phosphorus removal floating mud tank 1.
Step two, starting the dosing pump 6, and opening a corresponding on-off valve; so that the phosphorus removing agent in the phosphorus removing dosing tank 5 is pumped into the phosphorus removing area of the phosphorus removing floating sludge tank 1. The phosphorus removing agent in the phosphorus removing area of the phosphorus removing floating mud pool 1 adsorbs elements in the treated wastewater, so that most of phosphorus elements in the treated wastewater are flocculated under the action of the phosphorus removing agent.
And step three, the treated wastewater in the phosphorus removal area of the phosphorus removal floating mud tank 1 enters the mud-water separation area through a liquid through hole at the bottom of the partition plate 2 and flows upwards in an inclined manner under the action of the drainage plate 7. The slag scraper 8, the reflux pump 17 and the dissolved air pump 15 are all started, and the treated wastewater in the dissolved air tank 16 (the wastewater in the tank comes from a phosphorus removal area) is injected with air by the dissolved air pump 15, so that a large amount of micro bubbles are generated in the treated wastewater; after the treated wastewater with the micro-bubbles dispersed in the dissolved air tank 16 is introduced into the phosphorus removal zone, air is attached to suspended particles of the treated wastewater in a highly dispersed micro-bubble form, so that the density is lower than that of water; floating the suspended matters to a slag scraper by using a buoyancy principle; the slag scraper 8 scrapes the floating suspended matters into the sludge transition box 9. Suspended matters in the sludge transition box 9 enter the sludge storage box 11 along with water flow and are precipitated in the sludge storage box 11 to generate sludge. Sludge in the sludge storage tank 11 is pumped into the filter press 13 by the mud pump 12 for treatment. The clear water in the treated wastewater sinks and enters the clear water separation pipeline 14 through a clear water inlet on the clear water separation pipeline 14.
Step four, the treated wastewater output by the clear water separation pipeline 14 is shunted after passing through a shunt three-way pipe 20; one part flows to the biological ultra-filter 21, and the other part is pumped into the dissolved air tank 16 by the return pump 17. Because the dissolved air pump injects oxygen into the treated wastewater in the working process, the operation of sludge-water separation lays a foundation for the subsequent aerobic microorganism denitrification.
And step five, aerating the aeration pipe in the biological super filter 21 to provide oxygen for the denitration microorganisms in the biological super filter 21. The denitrifying microorganism converts ammonia nitrogen in the treated sewage into nitrogen. Under the action of the negative pressure generated by the output water pump 29, the water in the biological ultra-filtration tank 21 enters the overflow water tank 27 through the ultrafiltration membrane 24. Since the sewage to be treated can pass through the filtering holes with the aperture equal to 0.22 μm on the ultrafiltration membrane 24, the aerobic denitrifying bacteria can not pass through the ultrafiltration membrane 24 because the size is more than 0.22 μm. Therefore, the aerobic denitrifying bacteria in the utility model can not be taken out of the biological super filter 21 along with the treated sewage when playing a good denitrification effect, and further avoid the loss of the aerobic denitrifying bacteria. Therefore, the utility model has a much higher utilization rate of the aerobic denitrifying bacteria than the prior art.
When the content of aerobic denitrifying bacteria in the biological ultra-filtration tank 21 is lower than a content threshold (or the time interval from the last addition of denitrifying microorganisms reaches a first threshold, which is set to one week in this embodiment), the second microbial inoculum transfer pump 26 is started once to inject denitrifying microbial inoculum in the microbial culture device 25 into the biological ultra-filtration tank 21.
When the ultrafiltration membrane 24 is blocked (or the time interval from the last backwashing reaches a second threshold value, which is set as day in this embodiment), the backwash water pump 28 is started, the sewage lift pump 4 and the output water pump 29 are closed, and the clean water in the overflow water tank 27 is pumped into the ultrafiltration membrane 24 and is output from the filtration holes of the ultrafiltration membrane 24, so that backwashing on the ultrafiltration membrane 24 is realized.
Claims (9)
1. A dephosphorization and denitrification device with a mud-water separation function comprises a water inlet module, a dephosphorization and desilting system, a denitrification system and a water outlet backflushing module; the method is characterized in that: the phosphorus and mud removing system comprises a phosphorus and mud removing floating pool, a partition plate, a drainage plate, a flow dividing three-way pipe, a phosphorus removing agent adding component, a sludge treatment system and a backflow gas dissolving system; a partition plate is arranged in the phosphorus removal floating mud tank; the phosphorus removal floating mud tank is divided into a phosphorus removal area and a mud-water separation area by the partition plate; the bottom of the partition plate is provided with a liquid through port; a drainage plate is fixed at the bottom of the mud-water separation zone; the bottom end of the drainage plate is arranged close to the liquid through port of the partition plate, and the top end of the drainage plate is inclined towards one side far away from the phosphorus removal area;
the water inlet module comprises a sewage collecting tank and a sewage lifting pump; a water inlet of the sewage lifting pump is communicated with an inner cavity of the sewage collecting tank, and a water outlet of the sewage lifting pump is connected with a water inlet at the top of a dephosphorization zone in the dephosphorization sludge floating tank; the phosphorus removing agent adding component comprises a phosphorus removing dosing box and a dosing pump; the medicine outlet of the dephosphorization dosing box is communicated with the water inlet of the dosing pump; the water outlet of the dosing pump is connected with a dosing port at the top of the dephosphorization zone in the dephosphorization floating sludge tank;
the sludge treatment system comprises a clear water separation pipeline, a slag scraper, a sludge transition box, a sludge flow channel, a sludge storage box, a sludge pressing pump and a filter press; the slag scraper is arranged at the top of the mud-water separation zone; the sludge transition box is fixed in the sludge-water separation zone and is positioned below the end of the sludge scraper far away from the phosphorus removal zone; one end of the sludge flow channel is connected with a sludge output port at the bottom of the sludge transition box, and the other end of the sludge flow channel is connected with the top of an inner cavity of the sludge storage box; the bottom end of the sludge storage box is provided with a sludge outlet; the input port of the mud-pressing pump is connected with the mud storage tank, and the output port of the mud-pressing pump is connected with the mud input port of the filter press; the bottom of the mud-water separation zone is provided with a clear water separation pipeline; a clear water inlet is formed in the clear water separation pipeline; a clear water outlet of the clear water separation pipeline is connected with a first water through port of the shunt three-way pipe;
the backflow gas dissolving system comprises a gas dissolving pump, a gas dissolving tank body, a backflow pump and a backflow water outlet pipe; the top of the gas dissolving tank body is provided with a primary backflow inlet and a secondary backflow inlet, and the bottom of the gas dissolving tank body is provided with a backflow outlet and a gas-enriched water outlet; the water inlet of the reflux pump is connected with the second water through port of the three-way flow dividing pipe; the water outlet of the reflux pump is connected with a first-stage reflux inlet at the top of the dissolved gas tank body; a backflow outlet at the top of the dissolved air tank body is connected with a liquid inlet of the dissolved air pump; the output port of the dissolved air pump is connected with the secondary reflux inlet of the dissolved air tank body; the aeration water outlet of the dissolved air tank body is connected with the water inlet end of the backflow water outlet pipe; the water outlet end of the backflow water outlet pipe is positioned between the partition plate and the drainage plate; the wastewater treatment module comprises a biological ultra-filtration tank, a transition pump, an aeration pipe and an ultrafiltration membrane; a sewage inlet of the biological super filter is connected with a third water through hole of the three-way flow dividing pipe; an aeration pipe is arranged at the bottom of the inner cavity of the biological super filter; the ultrafiltration membrane is arranged in the biological ultrafiltration pool;
the microorganism feeding module comprises a microorganism incubator and a microbial inoculum transmission pump; denitrification microorganisms are arranged in the microorganism incubator; the bottom of the microorganism culture device is provided with a water outlet; the water outlet of the microorganism incubator is communicated with the water inlet of the microbial inoculum transmission pump; the water outlet of the microbial inoculum transmission pump is connected with a microbial inoculum feeding port at the top of the reaction tank; the water outlet backflushing module comprises an overflow water tank, a backflushing water pump and an output water pump; the water outlet of the backwashing water pump and the water inlet of the output water pump are both connected with the water outlet of the ultrafiltration membrane; the water inlet of the back flushing water pump and the water outlet of the output water pump are respectively connected with the back flushing water outlet and the clear water inlet of the overflow water tank.
2. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: a flow sensor and an on-off valve are arranged between the water outlet of the sewage lifting pump and the water inlet of the phosphorus removal floating mud tank; an on-off valve is arranged between the water outlet of the dosing pump and a dosing port at the top of the dephosphorization zone in the dephosphorization floating sludge tank; an on-off valve is arranged between the input port of the mud pressing pump and the mud storage tank; an on-off valve is arranged between the output port of the mud pressing pump and the sludge input port of the filter press; a flow meter and an on-off valve which are connected in series are arranged between the water inlet of the reflux pump and the second water through opening of the flow dividing three-way pipe; an on-off valve is arranged between the water outlet of the reflux pump and the primary reflux inlet at the top of the dissolved gas tank body; a backflow outlet at the top of the dissolved air tank body and a liquid inlet of the dissolved air pump are provided with on-off valves; an on-off valve and a flowmeter are arranged between the output port of the dissolved air pump and the second-stage reflux inlet of the dissolved air tank body; an on-off valve is arranged between the water outlet of the microbial inoculum transmission pump and a microbial inoculum adding port at the top of the reaction tank; and an on-off valve, a manual valve and a flowmeter are arranged between the aeration water output port of the dissolved air tank body and the water inlet end of the backflow water outlet pipe.
3. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: the backflow air dissolving system also comprises a pressure regulating air pump; the top of the dissolved air tank body is also provided with a pressure regulating port; and the air outlet of the pressure regulating air pump is connected with a pressure regulating port on the dissolved air tank body.
4. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: the ultrafiltration membrane is tubular; the ultrafiltration membrane is made of polyethylene; the aperture of the filtering hole on the ultrafiltration membrane is 0.22 μm.
5. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: the microorganism culture device is filled with water and is provided with a plurality of thallus culture boxes; denitrifying microorganisms and a solid culture medium are arranged in the thallus culture box; the denitrifying microorganism is aerobic nitrobacteria and aerobic denitrifying bacteria.
6. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: the aeration pipe is provided with a nano aeration hole; and a phosphorus removal agent is filled in the phosphorus removal dosing box.
7. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: the slag scraper comprises a conveying wheel, a conveying wheel and a slag scraping plate; the two conveying wheels are respectively supported at the two ends of the top of the mud-water separation area and are connected through the conveying belt; the plurality of slag scraping plates are uniformly distributed and fixed on the outer side surface of the conveying belt.
8. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: a plurality of obliquely arranged spoilers are arranged in the dissolved air tank.
9. The phosphorus and nitrogen removal device with the function of separating sludge and water as claimed in claim 1, wherein: the drainage plate and the bottom surface of the phosphorus and mud removing area form an included angle of 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920197036.1U CN209872669U (en) | 2019-02-14 | 2019-02-14 | Dephosphorization and denitrification equipment with mud-water separation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920197036.1U CN209872669U (en) | 2019-02-14 | 2019-02-14 | Dephosphorization and denitrification equipment with mud-water separation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209872669U true CN209872669U (en) | 2019-12-31 |
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| CN201920197036.1U Expired - Fee Related CN209872669U (en) | 2019-02-14 | 2019-02-14 | Dephosphorization and denitrification equipment with mud-water separation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665675A (en) * | 2019-02-14 | 2019-04-23 | 浙江泽林瑞沃环境科技有限公司 | A kind of dephosphorization denitrogenation equipment having mud-water separation function and its dephosphorization denitrification method |
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2019
- 2019-02-14 CN CN201920197036.1U patent/CN209872669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665675A (en) * | 2019-02-14 | 2019-04-23 | 浙江泽林瑞沃环境科技有限公司 | A kind of dephosphorization denitrogenation equipment having mud-water separation function and its dephosphorization denitrification method |
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Effective date of registration: 20210709 Address after: Room 1205, block a, 18 Wantang Road, Xihu District, Hangzhou City, Zhejiang Province 310063 Patentee after: ZHEJIANG TAOHUAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: Room 201, unit 2, building 8, Hang Seng Science Park, 1218 Wenyi West Road, Cangqian street, Yuhang District, Hangzhou City, Zhejiang Province, 310036 Patentee before: ZHEJIANG ZL RIVER ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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