CN202594910U - Zero-discharge concentrating treatment system for basic zinc electroplating wastewater - Google Patents
Zero-discharge concentrating treatment system for basic zinc electroplating wastewater Download PDFInfo
- Publication number
- CN202594910U CN202594910U CN201220153332.XU CN201220153332U CN202594910U CN 202594910 U CN202594910 U CN 202594910U CN 201220153332 U CN201220153332 U CN 201220153332U CN 202594910 U CN202594910 U CN 202594910U
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- CN
- China
- Prior art keywords
- electroplating wastewater
- zero
- concentrating
- concentration
- pool
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- Expired - Fee Related
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- 239000002351 wastewater Substances 0.000 title claims abstract description 38
- 239000011701 zinc Substances 0.000 title claims abstract description 27
- 238000009713 electroplating Methods 0.000 title claims abstract description 25
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 25
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000010979 pH adjustment Methods 0.000 claims 4
- 239000008213 purified water Substances 0.000 claims 2
- 238000001223 reverse osmosis Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 2
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000003513 alkali Substances 0.000 description 16
- 238000001914 filtration Methods 0.000 description 9
- 239000012141 concentrate Substances 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 5
- 208000005156 Dehydration Diseases 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 102000004316 Oxidoreductases Human genes 0.000 description 1
- 108090000854 Oxidoreductases Proteins 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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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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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a zero-discharge concentrating treatment system for basic zinc electroplating wastewater. The system comprises a basic zinc wastewater collecting pool, a concentrating pool, a circulating pump, a tetramercuriated fluorescein (TMF) filter device, a water purification tank, a 5mu security filter, a reverse osmosis (RO) concentrating system, an RO concentrating water tank, an evaporator, a first pH regulating device and a second pH regulating device, wherein the TMF filter device is returned to the concentrating pool through the other pipeline. The system is simple, has a good treatment effect on the basic zinc electroplating wastewater, and can realize zero discharge of the electroplating wastewater.
Description
Technical field
The utility model relates to a kind of alkali zinc electroplating wastewater zero concentrating and treating system.
Background technology
Plating is exactly to utilize electrolysis principle to plate layer of metal or alloy at metal or other surfaces, to realize the raising of material property, like the lifting of corrosion resistance nature.
Electroplating wastewater is to electroplate the waste water that factory discharges, and because of the difference of production technique, the electroplating wastewater that has contains chromium, and what have then contains cadmium, contains acid, contains alkali etc., and what the heavy metal ion in the electroplating wastewater had exists with simple cationic form, like Ni
2+, contain negatively charged ion in the electroplating wastewater that has, like CN with coordination ability
-So the positively charged ion in these electroplating wastewaters often exists with the form of complex cation, like Cd (CN)
-In addition, in electroplating wastewater, often also contain organic additive.
Alkali zinc waste water if not non-cyanogen galvanization, then contains Zn in the electroplating wastewater
2+, Zn (CN)
4 2-, CN
-Deng, these materials are very harmful to environment and human body, because cryanide ion has superpower complex ability; After getting into human body, its meeting and combine with ferric iron in the oxidized form Terminal oxidase stops it to be reduced into ferrous iron; Cause the histocyte anoxic, thus threat to life.
The existing technical process of handling alkali zinc electroplating wastewater mainly is: former pond → former water topping-up pump → disc filter → charcoal absorption system → full-automatic ultrafiltration system → intermediate water tank → middle water pump → security personnel's strainer → full-automatic reverse osmosis system (containing washing unit) → water reservoir.
The shortcoming of prior art scheme has: reverse osmosis concentrated water discharges, and can't reach the purpose of wastewater zero discharge.Contain various heavy metal ion and a large amount of recyclable salts in the reverse osmosis concentrated water.Reverse osmosis system has only one-level, and the reuse water yield is limited, and the dense water yield is big.
The utility model content
The purpose of the utility model provides a kind of alkali zinc electroplating wastewater zero concentrating and treating system.
The technical scheme that the utility model is taked is:
A kind of alkali zinc electroplating wastewater zero concentrating and treating system, it comprises that the alkali zinc wastewater collecting basin that connects successively through pipeline, concentrated pond, recycle pump, TMF filtration unit, cleaned water tank, 5 μ security personnel strainer, one-level RO concentration systems, secondary RO concentration systems, secondary RO concentrate water tank, vaporizer; Said TMF filtration unit returns through another pipeline and links concentrated pond; Also comprise the first pH regulator device, the second pH regulator device.
The said first pH regulator device is communicated on alkali zinc wastewater collecting basin and the pipeline that concentrated pond links to each other.
The said second pH regulator device is connected on the said cleaned water tank.
Described concentrated pond also is connected to pressure filter through pipeline.
The beneficial effect of the utility model is: the system of the utility model constitutes simple, to alkali zinc electroplating wastewater treatment effect is preferably arranged, and can realize the zero release of electroplating wastewater.The system of the utility model constitutes simple, and is with low cost, can reclaim salt simultaneously.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model.
Embodiment
As shown in Figure 1; The alkali zinc electroplating wastewater zero concentrating and treating system of the utility model, it comprises that the alkali zinc wastewater collecting basin 1 that connects successively through pipeline, concentrated pond 2, recycle pump 3, TMF filtration unit 4, cleaned water tank 5,5 μ security personnel strainer 6, one-level RO concentration systems 7, secondary RO concentration systems 13, secondary RO concentrate water tank 8, vaporizer 9; Said TMF filtration unit 4 returns to link through another pipeline and concentrates pond 2; Also comprise the first pH regulator device 10, the second pH regulator device 11.
The said first pH regulator device 10 is communicated on alkali zinc wastewater collecting basin 1 and the pipeline that concentrated pond 2 links to each other.
The said second pH regulator device 11 is connected on the said cleaned water tank 5.
Described concentrated pond 2 also is connected to pressure filter 14 through pipeline.
Native system also comprises a PLC electrical control system 12, the whole control of its realization to total system.
The alkali zinc waste water that alkali zinc wastewater collecting basin 1 is collected through pre-treatment; Through the first pH regulator device 10 wastewater pH is adjusted to alkalescence (pH9-12); In water collecting basin; The suspended substance of comparatively large vol is able to deposition; Concentrate pond 2 and then can precipitate the mud in the waste water that reflux and that water collecting basin enters of process TMF filtration unit 4 backs, the supernatant that concentrates in the pond 2 pumps into TMF filtration unit 4 through recycle pump 3, and the mud in the concentrated pond 2 is then sent into and carried out solid-liquid separation in the pressure filter 14; Filtering out water after the partial impurities through TMF filtration unit 4 then gets into and stores in the cleaned water tank 5 and regulate pH to neutral through the second pH regulator device 11; Water in the cleaned water tank 5 is to hold back the particle greater than 5 μ m that former water brings by the effect that the suction topping-up pump pumps into 5 μ security personnel strainer, 6,5 μ security personnel strainer 6 then, gets into reverse osmosis system to prevent it.Filter unit in security personnel's strainer is replaceable import filter core, and the absolute precision of this filter core is 5 μ m, adopts the unique seal mode, can not be short-circuited or leak, and be easy to change.Security personnel's strainer adopts corrosion resistant 304 stainless steel shells; Filter stick adopts 5 μ m flat-crushing type filter cores, and the water after filtering through 5 μ security personnel strainer 6 continues to be pumped to 7 dehydrations of one-level RO concentration systems and concentrates, and dehydration rate is 60-70%; Continuing to be pumped to 13 dehydrations of secondary RO concentration systems through the water after concentrating concentrates; Dehydration rate is 45-55%, then gets into secondary RO through the dense water after concentrating and concentrates water tank 8, gets into vaporizer 9 evaporations at last and reclaims salt.
In the native system, the technical indicator of RO concentration systems is:
Membranous type: press mold in 8 cun high density antipollutions
Brand: LG-DOW FILMTEC
TM
Pressurized vessel: 300psi
Material: glass reinforced plastic
The place of production: Jiangsu
Maximum operating temperature: 45 ℃
Water inlet chlorine residue: < 0.1PPM
Index: SDI < 5 is silted in water inlet up
Through after the system handles of the utility model, can realize the zero release of alkali zinc electroplating wastewater, remove the COD in the electroplating wastewater, reach relevant emission standard.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220153332.XU CN202594910U (en) | 2012-04-12 | 2012-04-12 | Zero-discharge concentrating treatment system for basic zinc electroplating wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220153332.XU CN202594910U (en) | 2012-04-12 | 2012-04-12 | Zero-discharge concentrating treatment system for basic zinc electroplating wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202594910U true CN202594910U (en) | 2012-12-12 |
Family
ID=47312468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220153332.XU Expired - Fee Related CN202594910U (en) | 2012-04-12 | 2012-04-12 | Zero-discharge concentrating treatment system for basic zinc electroplating wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202594910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071925A (en) * | 2014-07-14 | 2014-10-01 | 东莞汇金环境科技有限公司 | A zero-discharge treatment system and method for nickel-plating wastewater in a steel workshop |
| CN105948327A (en) * | 2016-06-26 | 2016-09-21 | 福建碧蓝环保股份公司 | Wastewater zero discharging treatment integrated equipment |
-
2012
- 2012-04-12 CN CN201220153332.XU patent/CN202594910U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071925A (en) * | 2014-07-14 | 2014-10-01 | 东莞汇金环境科技有限公司 | A zero-discharge treatment system and method for nickel-plating wastewater in a steel workshop |
| CN105948327A (en) * | 2016-06-26 | 2016-09-21 | 福建碧蓝环保股份公司 | Wastewater zero discharging treatment integrated equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20190412 |