CN210012697U - High-salinity wastewater discharge treatment system - Google Patents
High-salinity wastewater discharge treatment system Download PDFInfo
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- CN210012697U CN210012697U CN201920674850.8U CN201920674850U CN210012697U CN 210012697 U CN210012697 U CN 210012697U CN 201920674850 U CN201920674850 U CN 201920674850U CN 210012697 U CN210012697 U CN 210012697U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The utility model provides a high salt wastewater discharge treatment system, including waste water collecting tank, adjustment treatment tank, multi-media filter, electrodialysis treatment device, coagulating sedimentation unit, evaporation crystallization unit, nanofiltration unit and reverse osmosis desalination device, the water outlet end of waste water collecting tank links to each other with adjustment treatment tank, the output of adjustment treatment tank links to each other with multi-media filter, the output of multi-media filter links to each other with the electrodialysis treatment device, the dense water outlet end of electrodialysis treatment device links to each other with coagulating sedimentation unit, the product water outlet end of electrodialysis treatment device links to each other with nanofiltration unit, the water outlet end of nanofiltration unit links to each other with reverse osmosis desalination device, the product water end of reverse osmosis desalination device links to each other with the electrodialysis treatment device, the dense water outlet end of reverse osmosis desalination device, the water outlet end of coagulating sedimentation unit link to each other with evaporation crystallization unit respectively and can handle high concentration salt-containing waste water, can effectively reduce environmental pollution.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a chemical industry sewage treatment system's technical field, especially a high salt effluent disposal system.
[ background of the invention ]
At present, the discharge of industrial wastewater is very dangerous for the discharge of wastewater, and if the wastewater which is not treated and reaches the standard is discharged into a river channel, a pond or seeped into the ground, the environment is damaged, and a drinking water source is polluted. In the prior art, mature processes and equipment of water treatment processes such as RO reverse osmosis, EDI electric desalting method and the like can produce high-quality and high-efficiency production water, but the water yield of the water production process of the processes is about 75 percent, namely: in the process of producing high-quality water, other impurity components in the water are separated by a membrane, so that the impurity components are concentrated in 25% concentrated brine. These strong brines, which are often difficult to reuse, have to be discharged to water or deep wells. The harmfulness of the concentrated water treatment mode is gradually shown, such as the problems of land salinization, water organism reduction and the like are caused. Along with the implementation of the national environmental protection policy, the wastewater recycling has to face the problem of strong brine, the regeneration treatment and zero discharge of the strong brine become the difficulties which plague the water treatment, and a high-salinity wastewater discharge treatment system is proposed.
[ Utility model ] content
The utility model aims at solving the problems in the prior art and providing a high-salinity wastewater discharge treatment system, which can treat high-concentration saline wastewater and effectively reduce environmental pollution.
In order to realize the above object, the utility model provides a high salt wastewater discharge processing system, including waste water collecting tank, regulation treatment pond, multi-media filter, electrodialysis processing apparatus, coagulating sedimentation unit, evaporation crystallization unit, receive and strain unit and reverse osmosis desalination device, waste water collecting tank's play water end links to each other with the regulation treatment pond, the output of regulation treatment pond links to each other with multi-media filter, multi-media filter's output links to each other with the electrodialysis processing apparatus, the dense water play water end of electrodialysis processing apparatus links to each other with coagulating sedimentation unit, the product water play water end of electrodialysis processing apparatus links to each other with receiving the filtration unit, it links to each other with reverse osmosis desalination device to receive the water end of filtration unit, reverse osmosis desalination device's product water end links to each other with the electrodialysis processing apparatus, reverse osmosis desalination device's dense water end goes out water end, water end, The water outlet end of the coagulating sedimentation unit is respectively connected with the evaporative crystallization unit.
Preferably, the nanofiltration unit comprises a nanofiltration water supply pump, a nanofiltration security filter, a nanofiltration high-pressure pump, a nanofiltration device and a nanofiltration water production tank, wherein an inlet of the nanofiltration security filter is connected with a water production and outlet end of the electrodialysis treatment device through the nanofiltration water supply pump, an outlet of the nanofiltration security filter is communicated with an inlet of the nanofiltration device through the nanofiltration high-pressure pump, a water production port of the nanofiltration device is connected with an inlet of the nanofiltration water production tank, and a water concentration port of the nanofiltration device is connected with a water inlet of the reverse osmosis desalination device.
Preferably, the coagulating sedimentation unit is connected with a coagulating agent adding device for removing calcium ions and magnesium ions in the wastewater.
Preferably, the adjusting treatment tank comprises a primary adjusting tank and a secondary adjusting tank, the primary adjusting tank is provided with an alkali adding device, the secondary adjusting tank is provided with an acid adding device, and the primary adjusting tank and the secondary adjusting tank are internally provided with mechanical stirring devices.
Preferably, the filter material in the multi-media filter is formed by sequentially combining three layers of quartz sand with the particle size of 2-5 mm, ceramsite with the particle size of 1-2 mm and anthracite with the particle size of 0.5-1 mm according to the wastewater treatment direction.
Preferably, a high-efficiency flocculator and a valveless filter are sequentially arranged between the wastewater collection tank and the adjusting treatment tank according to the wastewater treatment direction, and the high-efficiency flocculator adopts four-stage grid flocculation.
The utility model has the advantages that: the utility model discloses a waste water collecting tank, regulation treatment pond, multi-media filter, electrodialysis processing apparatus, coagulating sedimentation unit, evaporation crystallization unit, receive and strain unit and reverse osmosis desalination device, can handle the high concentration and contain salt waste water, equipment operation is simple, and the desalination rate is high, can satisfy waste water treatment's requirement.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a high salinity wastewater discharge treatment system of the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the utility model relates to a high-salinity wastewater discharge treatment system, which comprises a wastewater collecting tank 1, an adjusting treatment tank 2, a multi-media filter 3, an electrodialysis treatment device 4, a coagulating sedimentation unit 5, an evaporation crystallization unit 6, a nanofiltration unit 7 and a reverse osmosis desalination device 8, wherein the water outlet end of the wastewater collecting tank 1 is connected with the adjusting treatment tank 2, the output end of the adjusting treatment tank 2 is connected with the multi-media filter 3, the output end of the multi-media filter 3 is connected with the electrodialysis treatment device 4, the concentrated water outlet end of the electrodialysis treatment device 4 is connected with the coagulating sedimentation unit 5, the water outlet end of the electrodialysis treatment device 4 is connected with the nanofiltration unit 7, the water outlet end of the nanofiltration unit 7 is connected with the reverse osmosis desalination device 8, the water outlet end of the reverse osmosis desalination device 8 is connected with the electrodialysis treatment device 4, and the concentrated water outlet end of the reverse osmosis desalination device 8 and the water outlet end of the coagulating sedimentation unit 5 are respectively connected with the evaporative crystallization unit 6. The nanofiltration unit 7 comprises a nanofiltration water supply pump, a nanofiltration security filter, a nanofiltration high-pressure pump, a nanofiltration device and a nanofiltration water production tank, wherein an inlet of the nanofiltration security filter is connected with a water production and outlet end of the electrodialysis treatment device 4 through the nanofiltration water supply pump, an outlet of the nanofiltration security filter is communicated with an inlet of the nanofiltration device through the nanofiltration high-pressure pump, a water production port of the nanofiltration device is connected with an inlet of the nanofiltration water production tank, and a water concentration port of the nanofiltration device is connected with a water inlet of the reverse osmosis desalination device 8. And the coagulating sedimentation unit 5 is connected with a coagulant adding device for removing calcium ions and magnesium ions in the wastewater. The adjusting treatment tank 2 comprises a primary adjusting tank and a secondary adjusting tank, the primary adjusting tank is provided with an alkali adding device, the secondary adjusting tank is provided with an acid adding device, and the primary adjusting tank and the secondary adjusting tank are internally provided with mechanical stirring devices. The filter material in the multi-medium filter 3 is formed by sequentially combining three layers of quartz sand with the particle size of 2-5 mm, ceramsite with the particle size of 1-2 mm and anthracite with the particle size of 0.5-1 mm according to the wastewater treatment direction. The waste water collecting tank 1, adjust and be provided with high-efficient flocculator 21 and valveless filter 22 between the treatment tank 2 according to the waste water treatment direction in proper order, high-efficient flocculator 21 adopts level four net flocculation.
The utility model discloses the working process:
the utility model relates to a high salt wastewater discharge treatment system, the effluent of a wastewater collecting tank enters an adjusting treatment tank, firstly enters an operation unit for preliminarily reducing the hardness in the adjusting treatment tank, alkaline substances are added, the mixture reacts under stirring, the sediment is settled after the hardness is reduced, and the sediment is removed; the wastewater is neutralized by acidic substances to reduce the load impact on a subsequent treatment system; wherein, the high-efficiency flocculator is added with polyaluminium chloride flocculant, and fine suspended matters in water form large floccule particles through four vertical flow grid reaction, so that the suspended matters are easier to separate; the multi-media filter can effectively remove suspended impurities to clarify water; the method comprises the steps of extracting salt in the wastewater by an electrodialysis method, adding a coagulant into concentrated water for coagulating sedimentation, removing calcium ions and magnesium ions in the water, reducing the influence of the calcium ions and the magnesium ions on evaporative crystallization equipment, and performing evaporative concentration crystallization to obtain industrial salt for recycling; the produced water enters a nanofiltration unit to be nanofiltered to be used as preconcentration of a reverse osmosis desalination device, residual COD (chemical oxygen demand) and easily-scaling ions such as calcium ions and magnesium ions are further removed, the recovery rate and the system operation stability of a subsequent reverse osmosis device are improved, the reverse osmosis desalination device further carries out advanced treatment desalination on the wastewater to remove part of COD, and industrial salt is obtained through evaporation concentration crystallization to be recycled, so that the water quality of the effluent can meet the requirements of water use of different levels.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (6)
1. The utility model provides a high salt effluent disposal system which characterized in that: comprises a wastewater collecting tank (1), an adjusting treatment tank (2), a multi-medium filter (3), an electrodialysis treatment device (4), a coagulating sedimentation unit (5), an evaporation crystallization unit (6), a nanofiltration unit (7) and a reverse osmosis desalination device (8), wherein the water outlet end of the wastewater collecting tank (1) is connected with the adjusting treatment tank (2), the output end of the adjusting treatment tank (2) is connected with the multi-medium filter (3), the output end of the multi-medium filter (3) is connected with the electrodialysis treatment device (4), the concentrated water outlet end of the electrodialysis treatment device (4) is connected with the coagulating sedimentation unit (5), the water outlet end of the electrodialysis treatment device (4) is connected with the nanofiltration unit (7), the water outlet end of the nanofiltration unit (7) is connected with the reverse osmosis desalination device (8), and the water outlet end of the desalination device (8) is connected with the electrodialysis treatment device (4), the concentrated water outlet end of the reverse osmosis desalination device (8) and the water outlet end of the coagulating sedimentation unit (5) are respectively connected with the evaporation crystallization unit (6).
2. The high salinity wastewater discharge treatment system of claim 1, wherein: the nanofiltration unit (7) comprises a nanofiltration water supply pump, a nanofiltration security filter, a nanofiltration high-pressure pump, a nanofiltration device and a nanofiltration water production tank, wherein the inlet of the nanofiltration security filter is connected with the water production and outlet end of the electrodialysis treatment device (4) through the nanofiltration water supply pump, the outlet of the nanofiltration security filter is communicated with the inlet of the nanofiltration device through the nanofiltration high-pressure pump, the water production port of the nanofiltration device is connected with the inlet of the nanofiltration water production tank, and the water concentration port of the nanofiltration device is connected with the water inlet of the reverse osmosis desalination device (8).
3. The high salinity wastewater discharge treatment system of claim 1, wherein: and the coagulating sedimentation unit (5) is connected with a coagulant adding device for removing calcium ions and magnesium ions in the wastewater.
4. The high salinity wastewater discharge treatment system of claim 1, wherein: the adjusting treatment tank (2) comprises a primary adjusting tank and a secondary adjusting tank, the primary adjusting tank is provided with an alkali adding device, the secondary adjusting tank is provided with an acid adding device, and the primary adjusting tank and the secondary adjusting tank are internally provided with mechanical stirring devices.
5. The high salinity wastewater discharge treatment system of claim 1, wherein: the filter material in the multi-medium filter (3) is formed by combining three layers of quartz sand with the particle size of 2-5 mm, ceramsite with the particle size of 1-2 mm and anthracite with the particle size of 0.5-1 mm in sequence according to the wastewater treatment direction.
6. The high salinity wastewater discharge treatment system of claim 1, wherein: the waste water treatment device is characterized in that a high-efficiency flocculator (21) and a valveless filter (22) are sequentially arranged between the waste water collecting tank (1) and the adjusting treatment tank (2) according to the waste water treatment direction, and the high-efficiency flocculator (21) adopts four-stage grid flocculation.
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| CN201920674850.8U CN210012697U (en) | 2019-05-13 | 2019-05-13 | High-salinity wastewater discharge treatment system |
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| CN201920674850.8U CN210012697U (en) | 2019-05-13 | 2019-05-13 | High-salinity wastewater discharge treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002654A (en) * | 2019-05-13 | 2019-07-12 | 浙江嘉化新材料有限公司 | A kind of high-salt wastewater discharge treating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002654A (en) * | 2019-05-13 | 2019-07-12 | 浙江嘉化新材料有限公司 | A kind of high-salt wastewater discharge treating system |
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