Anaerobic biochemical wastewater treatment system

Abstract

The anaerobic biochemical wastewater treatment system comprises a reaction tank, a dilution tank, a dosing tank, a clean water tank and a gas storage chamber, the reaction tank is connected with a first gas guide pipe, one end of the first gas guide pipe is connected to the gas storage chamber, the clean water tank is connected with a water conveying pipeline, the water conveying pipeline is connected with a water conveying branch pipe, and the other end of the first gas guide pipe is connected to the gas storage chamber. The gas storage chamber is connected with a gas guide pipe II, the other end of the gas guide pipe II is connected with a water conveying branch pipe, the dosing tank is connected with a dosing pipeline, and one end of the water conveying branch pipe is connected to the dosing pipeline. According to the anaerobic interferon diluting device, gas is introduced into the diluting tank, so that the gas pushes clear water and anaerobic interferon to enter the diluting tank, the viscosity of the anaerobic interferon can be reduced through mixing of the clear water and the anaerobic interferon, and under the action of gas pushing, the anaerobic interferon can be prevented from blocking a dosing pipeline while mixing of the clear water and the anaerobic interferon is accelerated; therefore, the anaerobic interferon cannot block the pipeline.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to an anaerobic biochemical wastewater treatment system. Background Art

[0002] Traditional aerobic treatment methods consume a lot of energy and have limited effects when treating high-concentration organic wastewater. Therefore, it is necessary to find more efficient and energy-saving treatment technologies, and anaerobic biochemical treatment came into being.

[0003] In the existing technology, high-salinity wastewater in anaerobic biochemical treatment systems contains a large amount of inorganic salt ions (Ca2+, Mg2+ ions). These scaling ions will react with anaerobic metabolites (NH4+) and phosphorus (PO43-) released by polyphosphate bacteria to form a black crystal. This black crystal is very easy to adhere to the pool wall, pipe wall, and three-phase separator, thereby blocking the water inlet pipe, water distributor, and circulation pipe. The existing technology uses anaerobic biochemical interferon to prevent the deposition of black crystals and clogging of pipes. However, due to the high viscosity of anaerobic interferon, it is easy to get clogged, making it difficult to add anaerobic interferon to prevent the formation of black crystals and clogging of pipes.

[0004] Therefore, it is necessary to propose an anaerobic biochemical wastewater treatment system to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an anaerobic biochemical wastewater treatment system to solve the problem that anaerobic interferon has a high viscosity and is easily blocked, making it difficult to add anaerobic interferon to prevent the formation of black crystals and blockage of pipelines.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The anaerobic biochemical wastewater treatment system comprises a reaction tank, a dilution tank, a dosing box, a clean water tank, and an air storage chamber, wherein the reaction tank is connected to an air guide pipe, the other end of the air guide pipe is connected to the air storage chamber, the air guide pipe is installed with an air guide valve, the clean water tank is connected to a water delivery pipeline, a metering pump is installed on the water delivery pipeline near the clean water tank, the water delivery pipeline is connected to a water delivery branch pipe, a clean water valve is installed on the water delivery branch pipe, a metering pump is installed on the water delivery branch pipe, the air storage chamber is connected to an air guide pipe, the air guide pipe is installed with an air guide valve, the other end of the air guide pipe is connected to the water delivery branch pipe, the dosing box is connected to a dosing pipeline, an electric valve is fixedly installed at the interface between the dosing box and the dosing pipeline, the dosing pump is installed on the dosing pipeline, one end of the water delivery branch pipe is connected to the dosing pipeline, and air pumps are installed on both the first and second air guide pipes.

[0008] Preferably, the end of the dosing pipe away from the dosing tank is connected to the dilution tank, the end of the water pipe away from the clean water tank is connected to the dilution tank, and a clean water valve 2 is installed on the water pipe near the dilution tank.

[0009] Preferably, a water inlet pipe is connected to the top of the reaction tank, the other end of the water inlet pipe is connected to a metering pump three, and the other end of the metering pump three is connected to a reagent pipe.

[0010] Preferably, the other end of the medicine pipeline is connected to the dilution tank, and a drug delivery valve is installed on the medicine pipeline near the dilution tank.

[0011] Preferably, a sewage pipe is connected to a position of the medicine pipe away from the dosing valve, a sewage valve is installed on the sewage pipe, and the other end of the sewage pipe is connected to a sewage pool.

[0012] Preferably, a feeding port is provided on the top of the reaction tank.

[0013] The technical effects and advantages of this utility model are:

[0014] In the utility model, due to the internal air pressure of the air pump and the air storage chamber, the gas pushes the clean water and anaerobic interferon into the dilution tank. The mixing of the clean water and the anaerobic interferon can reduce the viscosity of the anaerobic interferon. Under the action of the gas push, the mixing of the clean water and the anaerobic interferon is accelerated while also preventing the anaerobic interferon from clogging the dosing pipe, thereby ensuring that the anaerobic interferon does not clog the pipe and ensuring that the anaerobic reaction inside the reactor continues. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an anaerobic biochemical wastewater treatment system of the utility model.

[0016] In the figure: 1. Reactor; 2. Dilution tank; 3. Dosing box; 4. Clean water tank; 5. Air storage chamber; 6. Air pipe 1; 7. Air valve 1; 8. Air pipe 2; 9. Air valve 2; 10. Metering pump 1; 11. Water pipeline; 12. Clean water valve 1; 13. Metering pump 2; 14. Water branch pipe; 15. Electric valve; 16. Dosing pump; 17. Dosing pipeline; 18. Clean water valve 2; 19. Dosing valve; 20. Chemical pipeline; 21. Sewage valve; 22. Sewage tank; 23. Sewage pipeline; 24. Metering pump 3; 25. Water inlet pipeline; 26. Feed port; 27. Air pump. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] The utility model provides Figure 1 The anaerobic biochemical wastewater treatment system shown in the figure includes a reaction tank 1, a dilution tank 2, a dosing box 3, a clean water tank 4, and an air storage chamber 5. The reaction tank 1 is connected to an air guide pipe 6, the other end of which is connected to the air storage chamber 5. An air guide valve 7 is installed on the air guide pipe 6. The clean water tank 4 is connected to a water pipeline 11. A metering pump 10 is installed on the water pipeline 11 near the clean water tank 4. A water branch pipe 14 is connected to the water pipeline 11. A clean water valve 12 is installed on the water branch pipe 14. A metering pump 2 13 is installed on the water branch pipe 14, an air guide pipe 2 8 is connected to the air storage chamber 5, an air guide valve 2 9 is installed on the air guide pipe 2 8, the other end of the air guide pipe 2 8 is connected to the water branch pipe 14, a dosing pipe 17 is connected to the dosing box 3, an electric valve 15 is fixedly installed at the interface between the dosing box 3 and the dosing pipe 17, a dosing pump 16 is installed on the dosing pipe 17, one end of the water branch pipe 14 is connected to the dosing pipe 17, and an air pump 27 is installed on both the air guide pipe 1 6 and the air guide pipe 2 8;

[0019] When it is necessary to transport the anaerobic interferon in the dosing box 3 to the dilution tank 2 for dilution, because the anaerobic interferon has a large viscosity, it is easy to clog the dosing pipe 17 during the process of being transported to the dilution tank 2. Before the transportation process, open the air valve 7 and the air pump 27 on the air pipe 6. The sewage inside the reaction tank 1 will produce gas during the anaerobic reaction process. The gas enters the gas storage chamber 5 through the air pipe 6 and the air pump 27 on the air pipe 6. When the dosing box 3 transports the anaerobic interferon to the dilution tank 2, open the metering pump 10 and the clean water valve 12, close the electric valve 15 to prevent clean water from entering the dosing box 3. The metering pump 10 transports the water in the clean water tank 4 to the dosing pipe 17 through the water branch pipe 14, so that the clean water and the anaerobic interferon After thorough mixing, the content of the delivered clean water is measured by the metering pump 2 13. In the process of delivering clean water from the clean water tank 4 to the dosing pipe 17, the air pump 27 and the air valve 2 9 on the air guide pipe 2 8 are opened, and the gas in the air storage chamber 5 enters the dosing pipe 17 through the air guide pipe 2 8 and the water branch pipe 14. Due to the internal air pressure of the air pump 27 and the air storage chamber 5, the gas pushes the clean water and the anaerobic interferon into the dilution tank 2. The mixing of the clean water and the anaerobic interferon can reduce the viscosity of the anaerobic interferon. Under the action of the gas push, the mixing of the clean water and the anaerobic interferon is accelerated, and the anaerobic interferon can also be prevented from clogging the dosing pipe 17, thereby ensuring that the anaerobic interferon does not clog the pipe and ensuring that the anaerobic reaction inside the reactor 1 continues.

[0020] The end of the dosing pipe 17 away from the dosing tank 3 is connected to the dilution tank 2, and the end of the water pipe 11 away from the clean water tank 4 is connected to the dilution tank 2. A clean water valve 18 is installed on the water pipe 11 near the dilution tank 2.

[0021] After the dosing box 3 delivers anaerobic interferon to the dilution tank 2, because the anaerobic interferon is generally diluted 2 to 4 times, additional clean water is needed for dilution. The metering pump 10 and the clean water valve 2 18 are opened, and the metering pump 10 pumps the clean water in the clean water tank 4 into the dilution tank 2 through the water supply pipe 11. According to the content of the delivered clean water recorded by the metering pump 2 13 on the water supply pipe 14, when additional clean water is delivered to the dilution tank 2 for dilution, the delivered clean water content is determined by the metering pump 10.

[0022] A water inlet pipe 25 is connected to the top of the reaction tank 1. The other end of the water inlet pipe 25 is connected to a metering pump 3 24. The other end of the metering pump 3 24 is connected to a drug pipe 20. The other end of the drug pipe 20 is connected to the dilution tank 2. A drug delivery valve 19 is installed on the drug pipe 20 near the dilution tank 2. A sewage pipe 23 is connected to the drug delivery valve 19 away from the drug delivery valve 19. A sewage valve 21 is installed on the sewage pipe 23. The other end of the sewage pipe 23 is connected to a sewage tank 22.

[0023] When adding sewage and diluted anaerobic interferon to the reactor 1, the sewage valve 21 is opened, and the sewage in the sewage pool 22 enters the pharmaceutical pipe 20 through the sewage pipe 23, and then the sewage enters the reactor 1 through the metering pump 3 24 and the water inlet pipe 25. At this time, the metering pump 3 24 records the content of the transported sewage, and then the sewage valve 21 is closed, and the dosing valve 19 is opened. The interferon in the dilution pool 2 enters the water inlet pipe 25 through the pharmaceutical pipe 20 and the metering pump 3 24, and finally enters the reactor 1. Because the dosage of anaerobic interferon needs to be measured according to 100-150 mg / L By adding and delivering the specified amount of anaerobic interferon through metering pump 324, the scaling problem is effectively solved, the efficiency of hydrolysis, acidification and methanogens is improved, the biodegradability of wastewater is enhanced, the granulation of anaerobic sludge is improved, the sludge activity is enhanced, the load shock resistance of the reactor is enhanced, the toxicity and inhibition of soluble sulfide on its methanogens and other anaerobic bacteria are reduced, its corrosion to equipment is reduced, and the black crystals in the anaerobic treatment process of sewage are inhibited, thereby reducing equipment maintenance costs, extending the maintenance cycle of anaerobic sewage treatment system facilities, reducing operating costs, and improving the stability and safety of system operation.

[0024] A feeding port 26 is provided on the top of the reaction tank 1;

[0025] When anaerobic interferon is initially added to the reactor 1 , 100-150 mg / L is added into the tank through the feed port 26 at once according to the actual amount of sludge and sewage in the reactor 1 , completing the initial addition.

[0026] The working principle of the present invention is as follows: when the anaerobic interferon in the dosing box 3 needs to be transported to the dilution tank 2 for dilution, because the anaerobic interferon has a large viscosity, it is easy to clog the dosing pipe 17 during the process of being transported to the dilution tank 2. Before the transportation process, open the air valve 7 and the air pump 27 on the air pipe 6. The sewage inside the reaction tank 1 will produce gas during the anaerobic reaction process. The gas enters the gas storage chamber 5 through the air pipe 6 and the air pump 27 on the air pipe 6. When the anaerobic interferon is transported from the dosing box 3 to the dilution tank 2, open the metering pump 10 and the clean water valve 12, close the electric valve 15, and prevent clean water from entering the dosing box 3. The metering pump 10 transports the water in the clean water tank 4 to the dosing pipe 17 through the water delivery branch pipe 14, so that the clean water and The anaerobic interferon is fully mixed, and the content of the delivered clean water is measured by the metering pump 13. In the process of delivering clean water from the clean water tank 4 to the dosing pipe 17, the air pump 27 and the air valve 9 on the air guide pipe 8 are opened, and the gas in the air storage chamber 5 enters the dosing pipe 17 through the air guide pipe 8 and the water branch pipe 14. Due to the internal air pressure of the air pump 27 and the air storage chamber 5, the gas pushes the clean water and the anaerobic interferon into the dilution tank 2. The mixing of the clean water and the anaerobic interferon can reduce the viscosity of the anaerobic interferon. Under the action of the gas push, the mixing of the clean water and the anaerobic interferon is accelerated, and the anaerobic interferon can also be prevented from clogging the dosing pipe 17, thereby ensuring that the anaerobic interferon does not clog the pipe and ensuring that the anaerobic reaction inside the reactor 1 continues.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. An anaerobic biochemical wastewater treatment system, comprising a reaction tank (1), a dilution tank (2), a dosing tank (3), a clear water tank (4), and an air storage chamber (5), characterized in that: The reaction tank (1) is connected to an air guide pipe (6), the other end of which is connected to the air storage chamber (5), and an air guide valve (7) is installed on the air guide pipe (6). The clean water tank (4) is connected to a water delivery pipe (11), and a metering pump (10) is installed on the water delivery pipe (11) near the clean water tank (4). The water delivery pipe (11) is connected to a water delivery branch pipe (14), and a clean water valve (12) is installed on the water delivery branch pipe (14). A metering pump (13) is installed on the water delivery branch pipe (14). The air storage chamber ( 5) is connected to an air guide pipe 2 (8), an air guide valve 2 (9) is installed on the air guide pipe 2 (8), the other end of the air guide pipe 2 (8) is connected to the water supply branch pipe (14), the dosing pipe (17) is connected to the dosing box (3), an electric valve (15) is fixedly installed at the interface between the inside of the dosing box (3) and the dosing pipe (17), a dosing pump (16) is installed on the dosing pipe (17), one end of the water supply branch pipe (14) is connected to the dosing pipe (17), and an air pump (27) is installed on both the air guide pipe 1 (6) and the air guide pipe 2 (8).

2. The anaerobic biochemical wastewater treatment system according to claim 1, characterized in that: The end of the dosing pipe (17) away from the dosing tank (3) is connected to the dilution tank (2), and the end of the water supply pipe (11) away from the clean water tank (4) is connected to the dilution tank (2). A clean water valve 2 (18) is installed on the water supply pipe (11) near the dilution tank (2).

3. The anaerobic biochemical wastewater treatment system according to claim 1, characterized in that: The top of the reaction tank (1) is connected to a water inlet pipe (25), the other end of the water inlet pipe (25) is connected to a metering pump (24), and the other end of the metering pump (24) is connected to a reagent pipe (20).

4. The anaerobic biochemical wastewater treatment system according to claim 3, characterized in that: The other end of the medicine pipeline (20) is connected to the dilution tank (2), and a drug delivery valve (19) is installed on the medicine pipeline (20) near the dilution tank (2).

5. The anaerobic biochemical wastewater treatment system according to claim 3, characterized in that: A sewage pipe (23) is connected to a position of the medicine pipe (20) away from the medication valve (19), a sewage valve (21) is installed on the sewage pipe (23), and the other end of the sewage pipe (23) is connected to a sewage tank (22).

6. The anaerobic biochemical wastewater treatment system according to claim 1, characterized in that: A feeding port (26) is provided on the top of the reaction tank (1).

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