CN209890430U - Zero release processing system of silica gel waste water - Google Patents
Zero release processing system of silica gel waste water Download PDFInfo
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- CN209890430U CN209890430U CN201920676313.7U CN201920676313U CN209890430U CN 209890430 U CN209890430 U CN 209890430U CN 201920676313 U CN201920676313 U CN 201920676313U CN 209890430 U CN209890430 U CN 209890430U
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Abstract
The utility model discloses a silica gel waste water zero release processing system, include that come water equalizing basin, ultrafiltration apparatus, receive filtration equipment, filter-pressing equipment, middle water tank and MVR multiple effect evaporation ware. The utility model has the advantages that: the silica gel wastewater zero-discharge treatment system can realize process circulation and zero discharge, and recovers water, silica gel and inorganic salt in the silica gel wastewater; in the system, any medicament is not added into other equipment except for adding the pH adjusting substance into the intermediate water tank, so that the damage to the equipment is small, other impurities cannot be introduced, the system integration level is high, and the cost is saved; the utility model discloses silica gel waste water zero release processing system adopts enhancement mode submergence formula milipore filter to carry out the preliminary treatment of silica gel waste water, need not adjust the pH of silica gel waste water in earlier stage, but will receive to strain and produce water and transfer pH and just can play the purpose of preliminary treatment.
Description
Technical Field
The utility model relates to a waste water treatment especially relates to a silica gel waste water zero release processing system.
Background
The wastewater generated in the preparation process of the silica gel mainly comes from the silica gel pickling link, the acid pickling wastewater has high acidity and a pH value of 2-3, and the acid pickling wastewater contains a large amount of sulfate and silicate and residual silica gel, so that the acid pickling wastewater is difficult to treat.
The existing silica gel pickling wastewater treatment process generally comprises the steps of firstly adjusting the pH value by using quick lime, then adding a flocculating agent such as polyaluminium chloride, polyferric chloride, polyacrylamide and the like to flocculate and precipitate silicon-containing wastewater, then carrying out filter pressing, and separating solid from liquid. The treatment process can generate a large amount of solid waste, and a large amount of calcium and magnesium impurities are introduced into the waste water, so that excessive burden is increased for subsequent treatment, and the problems of low efficiency, high cost, poor treatment effect and the like exist.
Disclosure of Invention
The utility model provides a zero release processing system of silica gel waste water to current silica gel pickling waste water treatment process inefficiency, with high costs and the poor problem of effect.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a silica gel wastewater zero discharge treatment system comprises an incoming water adjusting tank, an ultrafiltration device, a nanofiltration device, a filter pressing device, an intermediate water tank and an MVR multi-effect evaporator, and is characterized in that the ultrafiltration device is divided into an immersed ultrafiltration tank and a column ultrafilter, the immersed ultrafiltration tank is provided with a sewage pump and an ultrafiltration water tank, the nanofiltration device is internally provided with the nanofiltration water tank and the nanofiltration concentrated water tank, the nanofiltration device is three in number, the nanofiltration device is respectively a first-stage nanofiltration device, a second-stage nanofiltration device and a third-stage nanofiltration device, the intermediate water tank is connected with a NaOH alkali liquor storage tank, the intermediate water tanks are two in number, the first intermediate water tank and the second intermediate water tank are respectively arranged, an upper water outlet of the incoming water adjusting tank is connected with a water inlet of the immersed ultrafiltration tank, an ultrafiltration water tank water outlet of the immersed ultrafiltration tank is connected with a water inlet of the column ultrafilter, and the immersed, the water outlet of the column type ultrafilter is connected with the water inlet of the first-stage nanofiltration device, the nanofiltration concentrated water tank water outlet of the first-stage nanofiltration device is connected with the water inlet of the second-stage nanofiltration device, the nanofiltration concentrated water tank water outlet of the first-stage nanofiltration device and the nanofiltration concentrated water tank water outlet of the second-stage nanofiltration device are connected with the first middle water tank water inlet, the first middle water tank water outlet is connected with the water inlet of the third-stage nanofiltration device, the nanofiltration concentrated water tank water outlet of the second-stage nanofiltration device and the nanofiltration concentrated water tank water outlet of the third-stage nanofiltration device are connected with the second middle water tank water inlet, the second middle water tank water outlet is connected with the water inlet of the filter-pressing device, the water inlet of the filter.
In order to improve the recovery effect, a pressure filter is arranged in the incoming water regulating tank, a water outlet at the bottom of the incoming water regulating tank is connected with the pressure filter, and a water outlet of the pressure filter is connected with a water inlet of the immersed ultrafiltration tank. The drain outlet of the column type ultrafilter is connected with the water inlet of the immersed ultrafiltration tank.
In order to increase the ultrafiltration effect, the aperture of an ultrafiltration membrane used by the immersed ultrafiltration tank is 0.02-0.04 mu m, and the immersed ultrafiltration membrane is made of one of polyvinylidene fluoride, polysulfone, polyethersulfone, polyacrylonitrile, polyamide or cellulose acetate; the average pore diameter of the column ultrafiltration membrane used by the column ultrafilter is 0.001-0.01 mu m, and the material of the column ultrafiltration membrane is one of polyvinylidene fluoride, polysulfone, polyethersulfone, polyacrylonitrile or cellulose acetate.
The utility model has the advantages that: the silica gel wastewater zero-discharge treatment system can realize process circulation and zero discharge, and recovers water, silica gel and inorganic salt in the silica gel wastewater; in the system, any medicament is not added into other equipment except for adding the pH adjusting substance into the intermediate water tank, so that the damage to the equipment is small, other impurities cannot be introduced, the system integration level is high, and the cost is saved; the utility model discloses silica gel waste water zero release processing system adopts enhancement mode submergence formula milipore filter to carry out the preliminary treatment of silica gel waste water, need not adjust the pH of silica gel waste water in earlier stage, but will receive to strain and produce water and transfer pH and just can play the purpose of preliminary treatment.
Drawings
FIG. 1 is the schematic diagram of the connection of the parts of the silica gel wastewater zero-discharge treatment system, wherein each part is respectively: 1. the system comprises an incoming water adjusting tank, a submerged ultrafiltration tank, a column type ultrafilter, a primary nanofiltration device, a secondary nanofiltration device, a first intermediate water tank, a third nanofiltration device, a third intermediate water tank, a second intermediate water tank, a filter pressing device, a multi-effect evaporator of MVR (mechanical vapor recompression), a recovery water tank and a water tank, wherein the primary nanofiltration device is 2, the second nanofiltration device is 5, the second nanofiltration device is 6, the first intermediate water tank is 7, the third nanofiltration device is 8, the.
Detailed Description
The present invention is described below with reference to examples, which are only used to explain the present invention and are not used to limit the scope of the present invention.
Example 1
A silica gel wastewater zero discharge treatment system comprises an incoming water adjusting tank 1, ultrafiltration equipment, nanofiltration equipment, filter pressing equipment 9, an intermediate water tank and an MVR multi-effect evaporator 10, wherein the ultrafiltration equipment is divided into an immersed ultrafiltration tank 2 and a column type ultrafiltration tank 3, the diameter of an ultrafiltration membrane used by the immersed ultrafiltration tank 2 is 0.02 mu m, the material is polyvinylidene fluoride, the average diameter of a column type ultrafiltration membrane used by the column type ultrafiltration tank 3 is 0.01 mu m, the material is polysulfone, the immersed ultrafiltration tank 2 is provided with a sewage pump and an ultrafiltration product water tank, the nanofiltration equipment is internally provided with a nanofiltration product water tank and a nanofiltration concentrated water tank, the number of the nanofiltration equipment is three, the nanofiltration equipment is respectively a primary nanofiltration equipment 4, a secondary nanofiltration equipment 5 and a tertiary nanofiltration equipment 7, the intermediate water tank is connected with NaOH alkali liquor, the number of the intermediate water tanks is two, the intermediate water tanks are respectively a first intermediate water tank 6 and a second intermediate water tank 8, an upper water outlet at, the incoming water adjusting pool 1 is provided with a press filter, the bottom water outlet of the incoming water adjusting pool 1 is connected with the press filter, the water outlet of the press filter is connected with the water inlet of the immersed ultrafiltration pool 2, the water outlet of the ultrafiltration product water tank of the immersed ultrafiltration pool 2 is connected with the water inlet of the column type ultrafilter 3, the sewage pump of the immersed ultrafiltration pool 2 is connected with the water inlet of the incoming water adjusting pool 1, the water outlet of the column type ultrafilter 3 is connected with the water inlet of the primary nanofiltration equipment 4, the water outlet of the nanofiltration concentrate water tank of the primary nanofiltration equipment 4 is connected with the water inlet of the secondary nanofiltration equipment 5, the water outlets of the nanofiltration product water tanks of the primary nanofiltration equipment 4 and the secondary nanofiltration equipment 5 are both connected with the water inlet of the first intermediate water tank 6, the water outlet of the first intermediate water tank 6 is connected with the water inlet of the tertiary nanofiltration equipment 7, the water outlet of the second middle water tank 8 is connected with the water inlet of a filter pressing device 9, the water inlet of the filter pressing device 9 is connected with the water inlet of an MVR multi-effect evaporator 10, and the water outlet of a nanofiltration water production tank of the third-stage nanofiltration device 7 and the water outlet of the MVR multi-effect evaporator 10 are both connected with the water inlet of a recovery water tank 11.
Example 2
A silica gel wastewater zero discharge treatment system comprises an incoming water adjusting tank 1, ultrafiltration equipment, nanofiltration equipment, filter pressing equipment 9, an intermediate water tank and an MVR multi-effect evaporator 10, wherein the ultrafiltration equipment is divided into an immersed ultrafiltration tank 2 and a column type ultrafiltration tank 3, the diameter of an ultrafiltration membrane used by the immersed ultrafiltration tank 2 is 0.04 mu m, the material is polyacrylonitrile, the average diameter of a column type ultrafiltration membrane used by the column type ultrafiltration tank 3 is 0.001 mu m, the material is polyether sulfone, the immersed ultrafiltration tank 2 is provided with a sewage pump and an ultrafiltration product water tank, the nanofiltration equipment is internally provided with the nanofiltration product water tank and a nanofiltration concentrated water tank, the number of the nanofiltration equipment is three, the nanofiltration equipment is respectively a primary nanofiltration equipment 4, a secondary nanofiltration equipment 5 and a tertiary nanofiltration equipment 7, the intermediate water tank is connected with NaOH alkali liquor, the number of the intermediate water tanks is two, the intermediate water tanks are respectively a first intermediate water tank 6 and a second intermediate water tank 8, an upper water outlet, the incoming water adjusting pool 1 is provided with a press filter, the bottom water outlet of the incoming water adjusting pool 1 is connected with the press filter, the water outlet of the press filter is connected with the water inlet of the immersed ultrafiltration pool 2, the water outlet of the ultrafiltration product water tank of the immersed ultrafiltration pool 2 is connected with the water inlet of the column type ultrafilter 3, the sewage discharge pump of the immersed ultrafiltration pool 2 is connected with the water inlet of the incoming water adjusting pool 1, the water outlet of the column type ultrafilter 3 is connected with the water inlet of the first-stage nanofiltration device 4, the sewage discharge outlet of the column type ultrafilter 3 is connected with the water inlet of the immersed ultrafiltration pool 2, the water outlet of the nanofiltration concentrated water tank of the first-stage nanofiltration device 4 is connected with the water inlet of the second-stage nanofiltration device 5, the water outlets of the nanofiltration product water tanks of the first-stage nanofiltration device 4 and the second-stage nanofiltration device 5 are connected with the water inlet of the first intermediate water tank 6, the water outlet, the water outlet of the second middle water tank 8 is connected with the water inlet of a filter pressing device 9, the water inlet of the filter pressing device 9 is connected with the water inlet of an MVR multi-effect evaporator 10, and the water outlet of a nanofiltration water production tank of the third-stage nanofiltration device 7 and the water outlet of the MVR multi-effect evaporator 10 are both connected with the water inlet of a recovery water tank 11.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. A silica gel wastewater zero discharge treatment system comprises an incoming water adjusting tank, an ultrafiltration device, a nanofiltration device, a filter pressing device, an intermediate water tank and an MVR multi-effect evaporator, and is characterized in that the ultrafiltration device is divided into an immersed ultrafiltration tank and a column ultrafilter, the immersed ultrafiltration tank is provided with a sewage pump and an ultrafiltration water tank, the nanofiltration device is internally provided with the nanofiltration water tank and the nanofiltration concentrated water tank, the nanofiltration device is three in number, the nanofiltration device is respectively a first-stage nanofiltration device, a second-stage nanofiltration device and a third-stage nanofiltration device, the intermediate water tank is connected with a NaOH alkali liquor storage tank, the intermediate water tanks are two in number, the first intermediate water tank and the second intermediate water tank are respectively arranged, an upper water outlet of the incoming water adjusting tank is connected with a water inlet of the immersed ultrafiltration tank, an ultrafiltration water tank water outlet of the immersed ultrafiltration tank is connected with a water inlet of the column ultrafilter, and the immersed, the water outlet of the column type ultrafilter is connected with the water inlet of the first-stage nanofiltration device, the nanofiltration concentrated water tank water outlet of the first-stage nanofiltration device is connected with the water inlet of the second-stage nanofiltration device, the nanofiltration concentrated water tank water outlet of the first-stage nanofiltration device and the nanofiltration concentrated water tank water outlet of the second-stage nanofiltration device are connected with the first middle water tank water inlet, the first middle water tank water outlet is connected with the water inlet of the third-stage nanofiltration device, the nanofiltration concentrated water tank water outlet of the second-stage nanofiltration device and the nanofiltration concentrated water tank water outlet of the third-stage nanofiltration device are connected with the second middle water tank water inlet, the second middle water tank water outlet is connected with the water inlet of the filter-pressing device, the water inlet of the filter.
2. The silica gel wastewater zero discharge treatment system according to claim 1, wherein the incoming water regulating tank is provided with a pressure filter, a bottom water outlet of the incoming water regulating tank is connected with the pressure filter, and a water outlet of the pressure filter is connected with a water inlet of the immersed ultrafiltration tank.
3. The silica gel wastewater zero discharge treatment system according to claim 1 or 2, wherein the drain outlet of the column type ultrafilter is connected with the water inlet of the immersed ultrafiltration tank.
4. The silica gel wastewater zero-discharge treatment system according to claim 1 or 2, wherein the aperture of the ultrafiltration membrane used by the immersed ultrafiltration tank is 0.02-0.04 μm, and the immersed ultrafiltration membrane is made of one of polyvinylidene fluoride, polysulfone, polyethersulfone, polyacrylonitrile, polyamide or cellulose acetate.
5. The silica gel wastewater zero-discharge treatment system according to claim 1 or 2, wherein the average pore diameter of the column ultrafiltration membrane used by the column ultrafilter is 0.001-0.01 μm, and the material of the column ultrafiltration membrane is one of polyvinylidene fluoride, polysulfone, polyethersulfone, polyacrylonitrile or cellulose acetate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920676313.7U CN209890430U (en) | 2019-05-13 | 2019-05-13 | Zero release processing system of silica gel waste water |
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| CN201920676313.7U CN209890430U (en) | 2019-05-13 | 2019-05-13 | Zero release processing system of silica gel waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002655A (en) * | 2019-05-13 | 2019-07-12 | 山东金汇膜科技股份有限公司 | A kind of silica gel Wastewater zero-discharge treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002655A (en) * | 2019-05-13 | 2019-07-12 | 山东金汇膜科技股份有限公司 | A kind of silica gel Wastewater zero-discharge treatment system |
| CN110002655B (en) * | 2019-05-13 | 2024-04-26 | 山东金汇膜科技股份有限公司 | Zero release processing system of silica gel waste water |
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