CN210251368U - Treatment and recycling device for wastewater in demineralized water production - Google Patents
Treatment and recycling device for wastewater in demineralized water production Download PDFInfo
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- CN210251368U CN210251368U CN201920310497.5U CN201920310497U CN210251368U CN 210251368 U CN210251368 U CN 210251368U CN 201920310497 U CN201920310497 U CN 201920310497U CN 210251368 U CN210251368 U CN 210251368U
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Abstract
The utility model relates to a processing and retrieval and utilization device of waste water in demineralized water production, including the waste water collecting pit, the waste water collecting pit is equipped with the multimedium and comes the water pipe with the ultrafiltration, the waste water collecting pit passes through the pipeline and communicates in proper order with first waste water elevator pump, waste water equalizing basin, second waste water elevator pump, shallow sand filter and retrieval and utilization pond, be equipped with the three-way valve between second waste water elevator pump and the shallow sand filter, the three-way valve still communicates with the backwash waste water pipe. The device utilizes the waste water that produces in the demineralized water production process to come the partial moisturizing as circulating water device, has both reduced waste water discharge, has reduced the primary water volume of intaking again, has realized the cyclic utilization of water resource.
Description
Technical Field
The utility model relates to a wastewater treatment device in the production of demineralized water, in particular to a wastewater treatment and recycling device in the production of demineralized water.
Background
Demineralized water production typically includes filtration and ion exchange, wherein the filtration means further includes multi-media filters, ultrafiltration and reverse osmosis. The multi-medium filter mainly filters suspended substances including silt and the like in water, backwashing utilizes the discharged water of the multi-medium filter, and the continuous water discharge amount of backwashing is 20-35m3H is used as the reference value. Ultrafiltration is a pressure driven membrane process that separates by molecular weight. The aperture of the ultrafiltration membrane is generally in the range of 0.002-0.1 micron, and substances with the molecular weight of 1,000-500,000 daltons, including particles, suspended matters, bacteria, viruses, protozoa, colloidal substances, high molecular organic matters and the like, can be intercepted. The ultrafiltration backwashing utilizes the ultrafiltration filtered water, and the continuous water discharge amount of the backwashing is 100-200m3The two streams of water are mainly higher in suspended matter than the primary water, and the other components are the same. With the increasing environmental protection situation, the waste water is prohibited from being directly discharged due to the fact that suspended matters possibly exceed standards, and the waste water is discharged to a centralized treatment device, so that the waste water is required to be discharged, how to find out a new waste water treatment device to treat and recycle the waste water is important in saving water resources and economic benefits.
Disclosure of Invention
In view of the above-mentioned prior art's is not enough, the utility model aims at providing a waste water's processing and retrieval and utilization device in demineralized water production aims at solving the problem that the external drainage water yield is big, the water volume of once getting is big in the industrial production at present.
The utility model adopts the technical proposal that:
the utility model provides a processing and retrieval and utilization device of waste water in demineralized water production, includes the waste water collecting pit, the waste water collecting pit is equipped with multimedium water pipe and ultrafiltration water pipe, the waste water collecting pit communicates in proper order through pipeline and first waste water elevator pump, waste water equalizing basin, second waste water elevator pump, shallow sand filter and reuse water pool, be equipped with the three-way valve between second waste water elevator pump and the shallow sand filter, the three-way valve still communicates with backwash waste water pipe.
Preferably, the reuse water tank is communicated with a reuse water pipe, a reuse water pump is arranged on the reuse water pipe, and the reuse water pipe is communicated with the circulating water tank.
Preferably, be equipped with first level gauge and first waste water elevator pump interlocking in the waste water collecting pit, be equipped with second level gauge and second waste water elevator pump interlocking in the waste water equalizing basin, be equipped with third level gauge, turbidity appearance on the reuse pond.
Further preferably, a flow meter is arranged between the second wastewater lift pump and the three-way valve.
Further preferably, the second gauge is an ultrasonic gauge.
Preferably, a stirring device is arranged inside the wastewater adjusting tank.
Further preferably, the stirring device is a submersible plug flow stirrer.
Preferably, a stirring device is arranged inside the wastewater adjusting tank.
Further preferably, the stirring device is a QJB series submersible plug flow stirrer, and the second liquid level meter is a siemens ultrasonic liquid level meter.
Preferably, the backwashing wastewater pipe is sequentially communicated with the coagulation tank, the flocculation tank and the sedimentation tank, the coagulation tank is provided with a PAC dosing pipe and a coagulation mixer, and the flocculation tank is provided with a PAM-dosing pipe and a flocculation mixer.
Preferably, the sedimentation tank is provided with a mud scraper, a clean water outer discharge pipe and a sludge outer discharge pipe, the clean water outer discharge pipe is communicated with the outer discharge monitoring tank, and the sludge outer discharge pipe is communicated with the sludge concentration tank.
Further preferably, the sedimentation tank is a sedimentation tank for filtering backwashing wastewater by circulating water. Namely, the sedimentation tank and other side-filtering backwashing water of the circulating water devices in the plant area share one sedimentation tank.
The invention has the following beneficial effects:
1. the suspended substance of the water filtered by the filter is below 5mg/L, which meets the water quality requirement of the circulating water make-up water.
2. The multi-medium and ultrafiltration backwashing wastewater automatically flows into a wastewater collecting tank, is lifted to a wastewater adjusting tank by a wastewater lifting pump, is pumped into a filter by the wastewater lifting pump after water quality and water quantity are balanced, and automatically flows into a reuse water tank after suspended matters in water are removed, and the filter backwashing water is the filtered water of the filter. Pumping the recycled water in the recycling water tank into a circulating water tank through a recycling water pump to be used as part of water supplement of circulating water.
3. And a stirring device is arranged in the regulating tank to prevent suspended matters from settling.
4. Filter backwashing utilizes water filtered by the filter to carry out backwashing one by one, and other tanks operate without additionally arranging a backwashing pump.
5. The sedimentation tank and other side-filtering backwashing water of circulating water devices in the plant area share one sedimentation tank, so that the centralized treatment of the wastewater is realized.
6. The device waste water elevator pump interlocks with the liquid level, and the filter is according to the automatic backwash of time, and the export is equipped with online turbidity appearance, has realized the automatic operation of device, has reduced the manual work volume.
7. The device utilizes the waste water that produces in the demineralized water production process to come the partial moisturizing as circulating water device, has both reduced waste water discharge, has reduced the primary water volume of intaking again, has realized the cyclic utilization of water resource.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the multi-medium water supply pipe, 2, the ultrafiltration water supply pipe, 3, the wastewater collection tank, 4, the first liquid level meter, 5, the first wastewater lift pump, 6, the wastewater adjusting tank, 7, the stirring device, 8, the second liquid level meter, 9, the second wastewater lift pump, 10, the flowmeter, 11, the three-way valve, 12, the shallow sand filter, 13, the backwashing wastewater pipe, 14, the turbidity meter, 15, the reuse water tank, 16, the liquid level meter, 17, the turbidity meter, 18, the reuse water pump, 19, the reuse water pipe, 20, the coagulation tank, 21, the flocculation tank, 22, the sedimentation tank, 23, the coagulation mixer, 24, the mud scraper, 25, the flocculation mixer, 26, the PAC dosing pipe, 27, PAM-dosing pipe, 28, the clear water external discharge pipe and 29 external sludge discharge pipes.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited to the scope of the examples. These examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
Example 1
Fig. 1, a processing and retrieval and utilization device of waste water in demineralized water production, including waste water collecting tank 3, waste water collecting tank 3 is equipped with multimedium water pipe 1 and ultrafiltration water pipe 2, waste water collecting tank 3 passes through the pipeline and communicates in proper order with first waste water elevator pump 5, waste water equalizing basin 6, second waste water elevator pump 9, shallow sand filter 12 and retrieval and utilization pond 15, be equipped with three-way valve 11 between second waste water elevator pump 9 and the shallow sand filter 12, three-way valve 11 still communicates with backwash waste water pipe 13, backwash waste water pipe 13 communicates in proper order with coagulating basin 20, flocculation basin 21 and sedimentation tank 22, sedimentation tank 22 is equipped with mud scraper 24, clear water outer discharge pipe 28 and mud outer discharge pipe 29.
Preferably, the coagulation tank 20 is provided with a PAC dosing pipe 26 and a coagulation mixer 23, and the flocculation tank 21 is provided with a PAM-dosing pipe 27 and a flocculation mixer 25.
Preferably, the reuse water tank 15 is communicated with a reuse water pipe 19, a reuse water pump 18 is arranged on the reuse water pipe 19, and the reuse water pipe 19 is communicated with a circulation water tank.
Preferably, a first liquid level meter 4 and a first wastewater lifting pump 5 are arranged in the wastewater collection pool 3 and are interlocked, a second liquid level meter 8 and a second wastewater lifting pump 9 are arranged in the wastewater adjusting pool 6 and are interlocked, and a third liquid level meter 16 and a turbidity meter 17 are arranged on the reuse water pool 15.
Further preferably, a flow meter 10 is provided between the second wastewater lift pump 9 and the three-way valve 11.
Further preferably, the second level gauge 8 is an ultrasonic level gauge.
Preferably, a stirring device 7 is arranged inside the wastewater adjusting tank 6.
Further preferably, the stirring device 7 is a QJB series submersible plug flow stirrer, and the second liquid level meter 8 is a siemens ultrasonic liquid level meter.
Preferably, the backwashing wastewater pipe 13 is sequentially communicated with a coagulation tank 20, a flocculation tank 21 and a sedimentation tank 22, the coagulation tank 20 is provided with a PAC dosing pipe 26 and a coagulation mixer 23, and the flocculation tank 21 is provided with a PAM-dosing pipe 27 and a flocculation mixer 25.
Preferably, the sedimentation tank 22 is provided with a mud scraper 24, a clean water outlet pipe 28 and a sludge outlet pipe 29, the clean water outlet pipe 28 is communicated with the outward discharge monitoring tank, and the sludge outlet pipe 29 is communicated with the sludge concentration tank.
Further preferably, the sedimentation tank 22 is a sedimentation tank for filtering backwashing wastewater by circulating water.
The stirring device 7 balances the quality of the incoming water; a second liquid level meter 8 which is an ultrasonic liquid level meter is arranged in the tank and used for monitoring the liquid level of the wastewater adjusting tank 6 on line; the wastewater is lifted to a shallow sand filter 12 by a second wastewater lifting pump 9 for filtering, the effluent is discharged to a reuse water pool 15, the second wastewater lifting pump 9 is a variable frequency pump, and the variable frequency is interlocked with the liquid level of a regulating pool to realize the self-regulation of the liquid level. Shallow layer sand filter import is equipped with a pneumatic three-way valve 11, in normal operation, the waste water is gone into down, reach the operating time after, the three-way valve switches, sand filter rivers become and go into down and go out, the sand filter carries out online backwash one by one, backwash waste water adds the medicine through backwash waste pipe 13 to coagulation basin 20 and flocculation basin 21 and handles, suspended particles is by little grow, deposit through sedimentation tank 22, carry out mud-water separation, clear water overflow is discharged through clear water outer calandria 28, mud scrapes to the bottom of the pool through mud scraper 24 in the sedimentation tank 22, bottom of the pool mud is discharged through mud outer calandria 29 to the mud concentrated pond and is carried out subsequent processing. The outlet pipeline of the shallow sand filter is provided with a turbidity meter for monitoring turbidity of filtered water, and if the turbidity is greater than 5NTU, the backwashing time and the backwashing interval time of the sand filter can be manually adjusted to ensure that the filtered water is qualified.
The treated water automatically flows into a reuse water tank, and the reuse water tank is provided with a turbidity meter, so that the treated water is qualified. The recycled water in the water recycling tank is pumped into the water recycling tank through a recycled water pump to be used as part of water supplement of the water recycling tank, and the recycled water pump is a variable frequency pump and can be adjusted according to the liquid levels of the water recycling tank and the water recycling tank.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent shapes or structural changes made by the contents of the specification and the drawings or directly or indirectly applied to other related technical fields are included in the same way in the protection scope of the present invention.
Claims (6)
1. The utility model provides a processing and retrieval and utilization device of waste water in demineralized water production, includes waste water collecting pit (3), its characterized in that, waste water collecting pit (3) are equipped with multimedium water pipe (1) and ultrafiltration water pipe (2), waste water collecting pit (3) communicate in proper order through pipeline and first waste water elevator pump (5), waste water equalizing basin (6), second waste water elevator pump (9), shallow layer sand filter (12) and reuse water pond (15), be equipped with three-way valve (11) between second waste water elevator pump (9) and shallow layer sand filter (12), three-way valve (11) still communicate with backwash waste water pipe (13), reuse water pond (15) and reuse water pipe (19) intercommunication, be equipped with reuse water pump (18) on reuse water pipe (19), reuse water pipe (19) and circulation pond intercommunication.
2. The wastewater treatment and reuse device in the desalted water production according to claim 1, wherein a first liquid level meter (4) and a first wastewater lift pump (5) are arranged in the wastewater collection tank (3) and are interlocked with each other, a second liquid level meter (8) and a second wastewater lift pump (9) are arranged in the wastewater regulation tank (6) and are interlocked with each other, and a third liquid level meter (16) and a turbidity meter (17) are arranged on the reuse tank (15).
3. The wastewater treatment and reuse apparatus for desalted water production according to claim 2, wherein a flow meter (10) is provided between said second wastewater lift pump (9) and said three-way valve (11).
4. The device for treating and recycling wastewater generated in the desalted water production process as claimed in claim 1, wherein a stirring device (7) is arranged inside the wastewater adjusting tank (6).
5. The wastewater treatment and reuse device in the desalted water production according to claim 1, wherein said backwash wastewater pipe (13) is sequentially communicated with a coagulation tank (20), a flocculation tank (21) and a sedimentation tank (22), said coagulation tank (20) is provided with a PAC dosing pipe (26) and a coagulation mixer (23), said flocculation tank (21) is provided with a PAM dosing pipe (27) and a flocculation mixer (25); the sedimentation tank (22) is provided with a mud scraper (24), a clean water outer discharge pipe (28) and a sludge outer discharge pipe (29), the clean water outer discharge pipe (28) is communicated with an outer discharge monitoring tank, and the sludge outer discharge pipe (29) is communicated with a sludge concentration tank.
6. The device for treating and recycling wastewater in desalted water production according to claim 5, wherein the sedimentation tank (22) is a sedimentation tank for backwashing wastewater by side-filtering with circulating water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920310497.5U CN210251368U (en) | 2019-03-12 | 2019-03-12 | Treatment and recycling device for wastewater in demineralized water production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920310497.5U CN210251368U (en) | 2019-03-12 | 2019-03-12 | Treatment and recycling device for wastewater in demineralized water production |
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| Publication Number | Publication Date |
|---|---|
| CN210251368U true CN210251368U (en) | 2020-04-07 |
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|---|---|---|---|
| CN201920310497.5U Active CN210251368U (en) | 2019-03-12 | 2019-03-12 | Treatment and recycling device for wastewater in demineralized water production |
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| Country | Link |
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| CN (1) | CN210251368U (en) |
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- 2019-03-12 CN CN201920310497.5U patent/CN210251368U/en active Active
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