CN101481157B - Process for advanced treatment of electroplating waste by integrated membrane - Google Patents
Process for advanced treatment of electroplating waste by integrated membrane Download PDFInfo
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- CN101481157B CN101481157B CN2008100591947A CN200810059194A CN101481157B CN 101481157 B CN101481157 B CN 101481157B CN 2008100591947 A CN2008100591947 A CN 2008100591947A CN 200810059194 A CN200810059194 A CN 200810059194A CN 101481157 B CN101481157 B CN 101481157B
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- reverse osmosis
- liquid
- electroplating
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- waste water
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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
Abstract
The invention discloses an integrated film deep processing electroplating waste water technology which has the following technical procedures: complexation and pH value regulation are carried out to electroplating waste water; primary filtration is carried out to the electroplating waste water by a fine-filtration filter and a safety filter; the electroplating waste water enters a hollow super-filtration film; the electroplating waste water is pressurized and enters a nano-filtration reverse osmosis film to carry out first-stage concentration; permeating liquid enters a permeating liquid tank; after being pressurized, the electroplating waste water in the permeating liquid tank returns to a cleaning tank by an brackish water reverse osmosis film; after being pressurized, the concentrated liquid enters the permeating liquid tank, the permeating liquid enters the permeating liquid tank, and the concentrated liquid is further pressurized to enter the brackish water reverse osmosis film for second-stage concentration; the permeating liquid after the second-stage concentration returns to the inlet of the alkali reverse osmosis film, and after being further pressurized, the concentrated liquid enters a seawater desalting reverse osmosis film for third-stage concentration; the permeating liquid after the third-stage concentration returns to the inlet of the seawater desalting reverse osmosis film, and the concentrated liquid returns to the electroplating tank to be used as electroplating supplementary liquid. The invention avoids the second environmental pollution, and realizes the zero discharge of the electroplating waste water.
Description
Technical field
The present invention relates to the treatment process of waste water, be specifically related to a kind of technology of handling electroplating wastewater.
Background technology
The electroplating waste water treatment technology of China is through semicentennial development, technology is diversification progressively, the situation that is developed to many technology such as ion exchange method, microbial method from initial chemical method, electrolytic reduction and deposits, the problem that the conventional process electroplating wastewater is faced: (1) cost is too high---and water can't recycle, and water rate and sewage disposal expense account for total cost of production 15%～20%; (2) wasting of resources---noble metal is discharged in the water body, can't recycle; (3) environmental pollution---the heavy metal in the electroplating wastewater is " a permanent pollutent ", shifts and accumulation final harm humans health in biologic chain.Present domestic electroplating wastewater processing is extensive use of ion exchange treatment, but the waste water of supersalinity directly enters ion-exchanger, resin regeneration is very frequent, and the soda acid consumption is big, and resin regeneration frequently brings complex operation, the labor hour waste, be difficult for realizing automated operation, regeneration soda acid consumption is big, causes the cost height, the soda acid discharging forms secondary pollution, need handle the soda acid emission problem once more.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of process for advanced treatment of electroplating waste by integrated membrane, can effectively solve the problem that existing technology causes secondary environmental pollution and heavy metal to recycle, and realizes the zero release of electroplating wastewater.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of process for advanced treatment of electroplating waste by integrated membrane is characterized in that: comprise following flow process,
A, the electroplating wastewater in the wastewater trough carried out pH value is regulated and complexing;
B, filter filter and security personnel's strainer tentatively filters by essence;
Electroplating wastewater after c, the preliminary filtration enters the hollow fiber ultrafiltration film again;
D, carry out one-level and concentrate by entering the nanofiltration reverse osmosis membrane after the electroplating wastewater supercharging behind the hollow fiber ultrafiltration film, the liquid that sees through after one-level concentrates enters through liquid bath, return rinse bath as electroplating rinse water by the brackish water reverse osmosis membrane after seeing through the electroplating wastewater supercharging in the liquid bath, enter the nanofiltration reverse osmosis membrane after the concentrated solution supercharging again, it sees through liquid and enters the described liquid bath that sees through, and enters the brackish water reverse osmosis membrane after the further supercharging of concentrated solution and carries out secondary and concentrate;
The liquid that sees through after e, secondary concentrate returns the import of brackish water reverse osmosis membrane, enters the seawater desalination reverse osmosis film after the further supercharging of concentrated solution and carries out three grades and concentrate;
The liquid that sees through after f, three grades concentrate returns the import of seawater desalination reverse osmosis film, and concentrated solution returns plating tank and replenishes liquid as electroplating.
The present invention is owing to adopted technique scheme, realize electroplating wastewater processing by physical method, only when cleaning each reverse osmosis membrane, just use a small amount of soda acid, therefore reduced effectively and adopted the 95% soda acid consumption that uses in the conventional ion exchange treatment process, solved second environmental pollution, reach environmental protection requirement, also reclaimed the harmful heavy metal in the waste water, change harmful to treasure, resource is reused, and the liquid water quality that sees through after art breading of the present invention can be used for electroplating finished parts surface washing water, reach the primary pure water standard, flushing workpiece surface drying does not have water stain, its ion content of concentrated solution after art breading of the present invention reaches to electroplate and replenishes liquid concentration, can return plating tank and replenish liquid as electroplating, and reaches the purpose of resource recycling, realized electroplating wastewater zero, made this treatment process possess splendid economy.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the schema of a kind of process for advanced treatment of electroplating waste by integrated membrane of the present invention.
Embodiment
As shown in Figure 1; schema for a kind of process for advanced treatment of electroplating waste by integrated membrane of the present invention; electroplating wastewater in the wastewater trough is carried out pH value to be regulated and complexing; make the ion that influences quality product after the reuse, organism etc. are removed after precipitation or complexing; filtering filter by essence more tentatively filters with security personnel's strainer; enter the hollow fiber ultrafiltration film again and remove various organic impurity such as adding agent and iron rust that are coated with in the electroplating wastewater; not blocked with multiple reverse osmosis membrane in the protection postchannel process, thus total system can be carried out smoothly.
Enter medial launder through above-mentioned pretreated electroplating wastewater, medial launder plays shock absorption, entering the nanofiltration reverse osmosis membrane after the electroplating wastewater supercharging in the medial launder carries out one-level and concentrates, because the working pressure of nanofiltration reverse osmosis is minimum, therefore concentrate as the first step, the liquid that sees through after concentrating enters through liquid bath, be used as electroplating rinse water by returning rinse bath behind the brackish water reverse osmosis membrane after seeing through the electroplating wastewater supercharging in the liquid bath, enter the nanofiltration reverse osmosis membrane after the concentrated solution supercharging again, it sees through liquid and enters the above-mentioned liquid bath that sees through, concentrated solution enters one-level and concentrates liquid bath, the concentrated solution of this moment concentrates ten times, the saltiness of concentrated solution can reach hundreds of to several thousand ppm, enters the brackish water reverse osmosis membrane after the further supercharging of concentrated solution and carries out secondary and concentrate.The liquid that sees through after secondary concentrates returns one-level and concentrates liquid bath, i.e. brackish water reverse osmosis membrane import, and about 10,000 ppm of concentrated solution concentration after secondary concentrates enter the seawater desalination reverse osmosis film and carry out three grades and concentrate after the further supercharging of concentrated solution.Three grades of liquid that see through after concentrating return secondary and concentrate liquid bath, it is the import of seawater desalination reverse osmosis film, the three grades of relative secondary concentrated solution of concentrated solution reconcentration twices after concentrating, the cycles of concentration of total system can reach 100 times like this, three grades of its ion contents of concentrated solution after concentrating reach to electroplate and replenish liquid concentration, return plating tank and replenish liquid as electroplating, total system realizes zero release.
A whole set of Controlling System is furnished with online ORP/TDS/pH monitor, high-pressure pump low-voltage protection device, at a complete set of in-line meters such as line pressure sensor, high water tank transmitter, line temperature sensor, online flow sensors; guarantee that various operating parameters can both reflect on simulating display screen, have running status and fault alarm teletransmission function simultaneously.
Claims (1)
1. process for advanced treatment of electroplating waste by integrated membrane is characterized in that: comprise following flow process,
A, the electroplating wastewater in the wastewater trough carried out the pH value is regulated and complexing;
B, filter filter and security personnel's strainer tentatively filters by essence;
Electroplating wastewater after c, the preliminary filtration enters the hollow fiber ultrafiltration film again;
D, carry out one-level and concentrate by entering the nanofiltration reverse osmosis membrane after the electroplating wastewater supercharging behind the hollow fiber ultrafiltration film, the liquid that sees through after one-level concentrates enters through liquid bath, return rinse bath as electroplating rinse water by the brackish water reverse osmosis membrane after seeing through the electroplating wastewater supercharging in the liquid bath, enter the nanofiltration reverse osmosis membrane after the concentrated solution supercharging again, it sees through liquid and enters the described liquid bath that sees through, and enters the brackish water reverse osmosis membrane after the further supercharging of concentrated solution and carries out secondary and concentrate;
The liquid that sees through after e, secondary concentrate returns the import of brackish water reverse osmosis membrane, enters the seawater desalination reverse osmosis film after the further supercharging of concentrated solution and carries out three grades and concentrate;
The liquid that sees through after f, three grades concentrate returns the import of seawater desalination reverse osmosis film, and concentrated solution returns plating tank and replenishes liquid as electroplating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100591947A CN101481157B (en) | 2008-01-17 | 2008-01-17 | Process for advanced treatment of electroplating waste by integrated membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100591947A CN101481157B (en) | 2008-01-17 | 2008-01-17 | Process for advanced treatment of electroplating waste by integrated membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101481157A CN101481157A (en) | 2009-07-15 |
| CN101481157B true CN101481157B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100591947A Expired - Fee Related CN101481157B (en) | 2008-01-17 | 2008-01-17 | Process for advanced treatment of electroplating waste by integrated membrane |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935119A (en) * | 2010-08-23 | 2011-01-05 | 游京初 | Processing method and device for recovering precious metals contained in electroplating wastewater |
| CN103539276A (en) * | 2013-06-03 | 2014-01-29 | 广州凯膜过滤设备有限公司 | System and technology for realizing electroplating washing zero discharge and electroplating solution recovery |
| CN103435173A (en) * | 2013-09-04 | 2013-12-11 | 汉特（清远）化工有限公司 | Treatment system and process for treating acidic copper-containing electroplating wastewater |
| CN103435174A (en) * | 2013-09-04 | 2013-12-11 | 汉特（清远）化工有限公司 | System and process for treating nickel-containing electroplating wastewater |
| CN104045177B (en) * | 2014-07-02 | 2016-06-15 | 清华大学 | A kind of membrane technology integrated processing method of highly concentrated acrylic nitrile waste water |
| CN104230113B (en) * | 2014-09-23 | 2016-03-02 | 扬州佳境环境科技股份有限公司 | A kind of electroplating and complexing waste water zero discharge treatment process |
| CN104711657A (en) * | 2015-03-10 | 2015-06-17 | 宁波恺谱瑞膜科技有限公司 | Secondary filtration method of ultra-filtration membrane for electroplate liquid |
| CN104961197B (en) * | 2015-06-18 | 2017-03-08 | 广东嘉元科技股份有限公司 | A kind of Copper foil handling process of water saving and its device |
| CN106495379B (en) * | 2016-11-28 | 2018-01-05 | 环境保护部华南环境科学研究所 | A kind of electroplating rinse water circulating and recovering and heavy metal recovery technique |
| CN106746116A (en) * | 2016-12-22 | 2017-05-31 | 高频美特利环境科技（北京）有限公司 | A kind of zero-discharge treatment process for industrial wastewater and processing system |
| CN107473483A (en) * | 2017-09-20 | 2017-12-15 | 四川中丹合创环保科技有限公司 | A kind of method of electroplating wastewater zero processing |
| CN109516601A (en) * | 2018-12-25 | 2019-03-26 | 上海丰信环保科技有限公司 | In conjunction with the electroplating waste-water reutilizing process of desalination technology |
| CN110387573B (en) * | 2019-07-04 | 2021-01-05 | 广州兴森快捷电路科技有限公司 | Multi-waste liquid shunting method and electroplating production system |
| CN111689601A (en) * | 2020-05-26 | 2020-09-22 | 舟山梅朋水处理有限公司 | Method for preparing fresh water with various water qualities |
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| US5558774A (en) * | 1991-10-09 | 1996-09-24 | Zenon Environmental Inc. | Aerated hot membrane bioreactor process for treating recalcitrant compounds |
| CN2670349Y (en) * | 2003-12-31 | 2005-01-12 | 曲艳春 | Electroplating wastewater treater |
| CN1590322A (en) * | 2003-09-05 | 2005-03-09 | 国家海洋局杭州水处理技术研究开发中心 | Membrane separation method of zero discharge of electroplating waste water treatment |
| CN1657448A (en) * | 2004-12-04 | 2005-08-24 | 海宁市海整整流器有限公司 | Recovering and using technology of water in electroplating |
-
2008
- 2008-01-17 CN CN2008100591947A patent/CN101481157B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558774A (en) * | 1991-10-09 | 1996-09-24 | Zenon Environmental Inc. | Aerated hot membrane bioreactor process for treating recalcitrant compounds |
| CN1590322A (en) * | 2003-09-05 | 2005-03-09 | 国家海洋局杭州水处理技术研究开发中心 | Membrane separation method of zero discharge of electroplating waste water treatment |
| CN2670349Y (en) * | 2003-12-31 | 2005-01-12 | 曲艳春 | Electroplating wastewater treater |
| CN1657448A (en) * | 2004-12-04 | 2005-08-24 | 海宁市海整整流器有限公司 | Recovering and using technology of water in electroplating |
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| CN101481157A (en) | 2009-07-15 |
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Assignee: Zhejiang Yuquan Environmental Engineering Co., Ltd. Assignor: Liu Yin|Qian Feng| Li Xiaosheng Contract record no.: 2011330000779 Denomination of invention: Process for advanced treatment of electroplating waste by integrated membrane Granted publication date: 20101208 License type: Exclusive License Open date: 20090715 Record date: 20110622 |
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Owner name: ZHEJIANG YUQUAN ENVIRONMENTAL ENGINEERING CO., LTD Free format text: FORMER OWNER: LIU YIN Effective date: 20120502 Free format text: FORMER OWNER: QIAN FENG LI XIAOSHENG Effective date: 20120502 |
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Effective date of registration: 20120502 Address after: The new Pavilion Road 313000 Zhejiang city of Huzhou province Daixi Industrial Zone No. 2 Patentee after: Zhejiang Yuquan Environmental Engineering Co., Ltd. Address before: 313000 Huzhou Yuquan environmental science and Technology Engineering Co., Ltd. 699 Huzhou Road, Zhejiang, China Co-patentee before: Qian Feng Patentee before: Liu Yin Co-patentee before: Li Xiaosheng |
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