Wastewater recycling device

Abstract

The utility model relates to a wastewater recycling device and belongs to the technical field of environmental protection and water treatment. Comprising a wastewater collection water tank, a wastewater collection water tank liquid level meter, a wastewater lifting pump, a wastewater lifting pump outlet check valve, a wastewater lifting pump outlet manual valve, an integrated device, a PAC dosing pump, a PAC dosing point, a PAM dosing pump, a PAM dosing point, a first stirrer, a second stirrer, an inclined plate, a reuse water tank, a reuse water tank liquid level meter, a reuse water pump inlet valve and a reuse water pump. The system comprises a recycling water pump inlet valve, a recycling water pump outlet valve, a recycling water pump outlet check valve, a first sludge discharge pump inlet valve, a second sludge discharge pump inlet valve, a sludge discharge pump and a sludge discharge pump outlet valve. The wastewater recycling device disclosed by the utility model can improve the utilization rate of water resources, and is low in cost, integrally mounted, small in occupied area, efficient in mixing, rapid in reaction, good in treatment effect, convenient to operate and high in recycling rate.

Description

Technical Field

[0001] This utility model relates to a wastewater recycling device, belonging to the field of environmental protection and water treatment technology. Background Technology

[0002] In water treatment projects, multi-media filters and ultrafiltration devices will produce a large amount of wastewater during operation. This wastewater includes start-up flushing water, backwash water, cross-flow water from ultrafiltration, and other drainage water. This part of the water accounts for about 10-15% of the total pre-treatment water volume.

[0003] For these wastewaters, the usual treatment method is to discharge the wastewater into the ditch, and after it is connected to the municipal pipe network, it will enter the sewage treatment plant for unified treatment; another treatment method is to merge it with other wastewater in the factory area or industrial park and enter the self-built or industrial park sewage treatment system for treatment.

[0004] Wastewater is discharged into ditches and then into the municipal pipe network for unified treatment at sewage treatment plants. The method is simple, but its drawbacks are that it requires controlling discharge indicators and discharge volume, which is costly and results in a significant waste of water. Alternatively, wastewater can be combined with other wastewater from the factory or industrial park and treated in a self-built or park-based sewage treatment system. However, some small factories do not have their own sewage treatment plants, so their discharge volume is limited by the treatment plant, and the operating costs are also high.

[0005] The two wastewater treatment methods mentioned above are simple to discharge, but they are inconsistent with the country's strong advocacy for improving the utilization rate of water resources.

[0006] Therefore, providing a device that can improve water resource utilization, is low-cost, has an integrated installation, a small footprint, high-efficiency mixing, rapid reaction, good treatment effect, is easy to operate, and allows wastewater to be reused after simple treatment has become an urgent technical problem to be solved in this field. Summary of the Invention

[0007] The purpose of this utility model is to provide a wastewater recycling device that can improve water resource utilization, has low cost, is integrated for installation, occupies a small area, has efficient mixing, rapid reaction, good treatment effect, is easy to operate, and has a high recycling rate.

[0008] The above-mentioned objective of this utility model is achieved through the following technical solution:

[0009] A wastewater recycling device includes a wastewater collection tank, a wastewater collection tank level gauge, a wastewater lift pump, a wastewater lift pump outlet check valve, a wastewater lift pump outlet manual valve, an integrated device, a PAC dosing pump, a PAC dosing point, a PAM dosing pump, a PAM dosing point, a first agitator, a second agitator, an inclined plate, a recycled water tank, a recycled water tank level gauge, a recycled water pump inlet valve, a recycled water pump, a recycled water pump outlet valve, a recycled water pump outlet check valve, a first sludge pump inlet valve, a second sludge pump inlet valve, a sludge pump, and a sludge pump outlet valve.

[0010] A wastewater collection tank drain valve is located on the lower left side of the wastewater collection tank. A level gauge is located at the top of the wastewater collection tank. The wastewater lift pump is located inside the wastewater collection tank. One end of the wastewater lift pump outlet check valve is connected to the wastewater lift pump outlet check valve. The other end of the wastewater lift pump outlet check valve is connected to one end of the wastewater lift pump outlet manual valve. The other end of the wastewater lift pump outlet manual valve is connected to one side of the integrated device. The first and second sludge pump inlet valves are located side-by-side at the bottom of the integrated device. One end of the sludge pump is connected to the outlet valve, and the other end of the sludge pump is connected to the outlet valve. The outlet pressure gauge of the sludge pump is installed at the outlet to observe the outlet pressure. The recycled water tank is adjacent to the other side of the integrated device. The recycled water tank is equipped with a recycled water tank level gauge. The other side of the recycled water tank is equipped with a recycled water tank outlet valve. The bottom of the recycled water tank is connected to the recycled water pump through the recycled water pump inlet valve. The outlet of the recycled water pump is equipped with a recycled water pump outlet pressure gauge. The recycled water pump is connected to the recycled water pump outlet valve check valve. The recycled water pump outlet valve check valve is connected to the recycled water pump outlet valve.

[0011] Preferably, the integrated device includes a first stirring zone, a second stirring zone, and an inclined plate zone.

[0012] Preferably, the first stirring zone is adjacent to the second stirring zone, and the second stirring zone is adjacent to the inclined plate zone.

[0013] Preferably, the first agitator is located inside the first mixing zone, the PAC dosing pump is located above the first mixing zone, and the PAC dosing pump is connected to the PAC dosing point.

[0014] Preferably, the second agitator is located inside the second mixing zone, the PAM dosing pump is located above the second mixing zone, and the PAM dosing point is connected to the PAM dosing pump.

[0015] Preferably, the inclined plate area is provided with an inclined plate.

[0016] Beneficial effects:

[0017] This utility model of wastewater recycling device can improve water resource utilization, has low cost, is integrated installation, occupies a small area, has high efficiency in mixing, rapid reaction, good treatment effect, is easy to operate, and has a high recycling rate.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this does not imply any limitation on the scope of protection of the present invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the wastewater recycling device in Embodiment 1 of this utility model.

[0020] Explanation of key figure labels:

[0021] 1 Wastewater collection tank 2 Wastewater collection tank level gauge

[0022] 3 Wastewater lift pump 4 Wastewater lift pump outlet check valve

[0023] 5 Wastewater lift pump outlet manual valve 6 Integrated device

[0024] 7PAC dosing pump 8PAC dosing point

[0025] 9PAM dosing pump, 10PAM dosing point

[0026] 11 First mixer 12 Second mixer

[0027] 13 Inclined plate 14 Reclaimed water tank

[0028] 15. Reclaimed water tank level gauge; 16. Reclaimed water pump inlet valve

[0029] 17 Recycled Water Pump 18 Recycled Water Pump Outlet Valve

[0030] 19. Reclaimed water pump outlet check valve; 20. First sludge pump inlet valve

[0031] 21 Second sludge pump inlet valve 22 Sludge pump

[0032] 23 Sludge pump outlet valve; 24 Wastewater collection tank drain valve

[0033] 25 Reclaimed water tank outlet valve; 26 Sludge pump outlet pressure gauge

[0034] 27. Reclaimed water pump outlet pressure gauge Detailed Implementation

[0035] Example 1

[0036] like Figure 1The diagram shown is a structural schematic of the wastewater recycling device according to Embodiment 1 of this utility model; wherein, 1 is a wastewater collection tank, 2 is a wastewater collection tank level gauge, 3 is a wastewater lift pump, 4 is a wastewater lift pump outlet check valve, 5 is a wastewater lift pump outlet manual valve, 6 is an integrated device, 7 is a PAC dosing pump, 8 is a PAC dosing point, 9 is a PAM dosing pump, 10 is a PAM dosing point, 11 is a first agitator, 12 is a second agitator, 13 is an inclined plate, 14 is a recycled water tank level gauge, 15 is a recycled water tank level gauge, 16 is a recycled water pump inlet valve, 17 is a recycled water pump, 18 is a recycled water pump outlet valve, 19 is a recycled water pump outlet check valve, 20 is a first sludge pump inlet valve, 21 is a second sludge pump inlet valve, 22 is a sludge pump, and 23 is a sludge pump outlet valve.

[0037] The wastewater recycling device of this utility model includes a wastewater collection tank 1, a wastewater collection tank level gauge 2, a wastewater lift pump 3, a wastewater lift pump outlet check valve 4, a wastewater lift pump outlet manual valve 5, an integrated device 6, a PAC dosing pump 7, a PAC dosing point 8, a PAM dosing pump 9, a PAM dosing point 10, a first agitator 11, a second agitator 12, an inclined plate 13, a recycled water tank 14, a recycled water tank level gauge 15, a recycled water pump inlet valve 16, a recycled water pump 17, a recycled water pump outlet valve 18, a recycled water pump outlet check valve 19, a first sludge pump inlet valve 20, a second sludge pump inlet valve 21, a sludge pump 22, and a sludge pump outlet valve 23.

[0038] Wastewater collection tank 1 has a wastewater collection tank drain valve 24 located on its lower left side. A wastewater collection tank level gauge 2 is located on the upper part of wastewater collection tank 1. A wastewater lift pump 3 is located inside wastewater collection tank 1. The wastewater lift pump 3 is connected to one end of a wastewater lift pump outlet check valve 4. The other end of the wastewater lift pump outlet check valve 4 is connected to one end of a wastewater lift pump outlet manual valve 5. The other end of the wastewater lift pump outlet manual valve 5 is connected to one side of an integrated device 6. The integrated device 6 includes a first stirring zone, a second stirring zone, and an inclined plate zone. The first stirring zone is adjacent to the second stirring zone, and the second stirring zone is adjacent to the inclined plate zone. A first agitator 11 is located inside the first stirring zone. A PAC dosing pump 7 is located above the first stirring zone and connected to a PAC dosing point 8. A second agitator 12 is located inside the second stirring zone. A PAM dosing pump 9 is located above the second stirring zone, and a PAM dosing point 8 is connected to the PAC dosing point 8. 10 is connected to PAM dosing pump 9. Inclined plate 13 is set inside the inclined plate area. The first sludge pump inlet valve 20 and the second sludge pump inlet valve 21 are set side by side at the bottom of the inclined plate area. The first sludge pump inlet valve 20 and the second sludge pump inlet valve 21 are connected to one end of sludge pump 22. The other end of sludge pump 22 is connected to sludge pump outlet valve 23. A sludge pump outlet pressure gauge 26 is set at the sludge pump outlet. The recycled water tank 14 is adjacent to the other side of the inclined plate area. Recycled water... The tank 14 is equipped with a recycled water tank level gauge 15. On the other side of the recycled water tank 14, there is a recycled water tank outlet valve 25. The bottom of the recycled water tank 14 is connected to the recycled water pump 17 through the recycled water pump inlet valve 16. A recycled water pump outlet pressure gauge 27 is installed between the recycled water pump 17 and the recycled water pump outlet check valve 19. The recycled water pump 17 is connected to the recycled water pump outlet check valve 19. The recycled water pump outlet check valve 19 is connected to the recycled water pump outlet valve 18.

[0039] Wastewater collection tank 1 has a rectangular structure (L*W*H=4m*2m*3m), is made of corrosion-resistant carbon steel, and is an underground tank;

[0040] Wastewater lift pump 3: 10m 3 / h, H=15m, 1.5kw, cast iron, stainless steel impeller;

[0041] Integrated device 6:10m 3 / h, 4x2.6x2.8, carbon steel, corrosion resistant;

[0042] PAC dosing pump 7: Q = 3.6 L / h, H = 60 m, P036, 37 W;

[0043] PAM dosing pump 9: Q = 3.6 L / h, H = 60 m, P036, 37 W;

[0044] Reclaimed water pump 17:10m 3 / h, H=25m, 1.5kw, cast iron, stainless steel impeller;

[0045] Sludge pump 22:5m 3 / h, H=25m, 1.5kw;

[0046] First mixer 11 / First mixer 12: 1.5KW;

[0047] Wastewater collection tank level gauge 2: measuring range 0-5m, line length 8m;

[0048] Reclaimed water tank level gauge 15: measuring range 0-5m, cable length 8m;

[0049] 4. Wastewater lift pump outlet check valve; 5. Wastewater lift pump outlet manual valve; 16. Reclaimed water pump inlet valve; 18. Reclaimed water pump outlet check valve; 19. Sludge pump outlet valve; 23. UPVC, DN50.

[0050] First sludge pump inlet valve 20 and second sludge pump inlet valve 22: DN65, cast iron with rubber lining.

[0051] The working process of the wastewater recycling device of this utility model is as follows:

[0052] Wastewater enters wastewater collection tank 1, then flows through wastewater lift pump 3, and via wastewater lift pump outlet check valve 4 and wastewater lift pump outlet manual valve 5 into integrated device 6. In integrated device 6, PAC is added to PAC dosing point 8 via PAC dosing pump 7, and PAM is added to PAM dosing point 10 via PAM dosing pump 9. After the addition of PAC and PAM, the wastewater passes through first agitator 11 in the first mixing zone and then enters the second mixing zone, where it is further mixed by second agitator 12. The water enters the inclined plate area and settles through inclined plate 13. The supernatant overflows into the recycled water tank 14. The treated water enters the recycled water pump 17 through the recycled water pump inlet valve 16. The recycled water pump 17 is reused to the point of use or the raw water tank after passing through the recycled water pump outlet pressure gauge 27, the recycled water pump outlet check valve 19, and the recycled water pump outlet valve 18. The settled sludge enters the sludge discharge pump 22 through the first sludge discharge pump inlet valve 20 and the second sludge discharge pump inlet valve 21. The sludge discharge pump 22 is then discharged to the pretreatment location through the sludge discharge pump outlet valve 23.

[0053] Application Example 1

[0054] The water source for a certain desalination project is the Yellow River. The water contains a lot of impurities such as silt and sand, and the suspended solids (SS) content is very high. Multi-media and ultrafiltration systems foul quickly. After a period of operation, the pressure differential increases rapidly, the system becomes severely fouled, and the cleaning frequency is very high. This results in a low overall water recycling rate and high water costs.

[0055] The wastewater recycling device of this invention collects start-up flushing water, backwash water, and cross-flow water from ultrafiltration, as well as other drainage water. After treatment, the treated water is returned to the original water tank, which improves the system's water utilization rate, reduces water costs, and thus reduces the overall system operating costs.

[0056] The beneficial effects of this wastewater recycling device are: 1. The device occupies a small area and is easy to install; 2. The reagent and water are efficiently mixed and reacted quickly, resulting in good effluent quality; 3. The water utilization rate is high, increasing by about 20%, reducing water costs and overall operating costs.

[0057] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model or equivalents, should be included within the protection scope of the present utility model.

Claims

1. A wastewater recycling device, characterized in that: Includes wastewater collection tank, wastewater collection tank level gauge, wastewater lift pump, wastewater lift pump outlet check valve, wastewater lift pump outlet manual valve, integrated device, PAC dosing pump, PAC dosing point, PAM dosing pump, PAM dosing point, first agitator, second agitator, inclined plate, recycled water tank, recycled water tank level gauge, recycled water pump inlet valve, recycled water pump, recycled water pump outlet valve, recycled water pump outlet check valve, first sludge pump inlet valve, second sludge pump inlet valve, sludge pump, and sludge pump outlet valve; The wastewater collection tank has an outlet valve on its lower left side. A level gauge is located at the top of the wastewater collection tank. The wastewater lift pump is located inside the tank. One end of the wastewater lift pump outlet check valve is connected to the lift pump outlet check valve, and the other end is connected to one end of the lift pump outlet manual valve. The other end of the manual valve is connected to one side of the integrated device. The first and second sludge pump inlet valves are located side-by-side at the bottom of the integrated device. The pump inlet valve is connected to one end of the sludge pump, and the other end of the sludge pump is connected to the sludge pump outlet valve. A sludge pump outlet pressure gauge is installed at the sludge pump outlet. The recycled water tank is adjacent to the other side of the integrated device. The recycled water tank is equipped with a recycled water tank level gauge. A recycled water tank outlet valve is located on the other side of the recycled water tank. The bottom of the recycled water tank is connected to the recycled water pump through the recycled water pump inlet valve. A recycled water pump outlet pressure gauge is installed at the recycled water pump outlet. The recycled water pump is connected to the recycled water pump outlet valve check valve, and the recycled water pump outlet valve check valve is connected to the recycled water pump outlet valve.

2. The wastewater recycling device according to claim 1, characterized in that: The integrated device includes a first mixing zone, a second mixing zone, and an inclined plate zone.

3. The wastewater recycling device according to claim 2, characterized in that: The first mixing zone is adjacent to the second mixing zone, and the second mixing zone is adjacent to the inclined plate zone.

4. The wastewater recycling device according to claim 3, characterized in that: The first agitator is located inside the first mixing zone, and the PAC dosing pump is located above the first mixing zone. The PAC dosing pump is connected to the PAC dosing point.

5. The wastewater recycling device according to claim 4, characterized in that: The second agitator is located inside the second mixing zone, and the PAM dosing pump is located at the top of the second mixing zone. The PAM dosing point is connected to the PAM dosing pump.

6. The wastewater recycling device according to claim 5, characterized in that: The inclined plate area is equipped with an inclined plate.

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