CN103951108A - Process method for treating electroplating comprehensive wastewater - Google Patents

Process method for treating electroplating comprehensive wastewater Download PDF

Info

Publication number
CN103951108A
CN103951108A CN201410175487.7A CN201410175487A CN103951108A CN 103951108 A CN103951108 A CN 103951108A CN 201410175487 A CN201410175487 A CN 201410175487A CN 103951108 A CN103951108 A CN 103951108A
Authority
CN
China
Prior art keywords
resin column
waste water
wastewater
processing
electroplating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410175487.7A
Other languages
Chinese (zh)
Inventor
郭聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Tian Jing Environmental Science And Technology Development Co Ltd
Original Assignee
Shenzhen Tian Jing Environmental Science And Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Tian Jing Environmental Science And Technology Development Co Ltd filed Critical Shenzhen Tian Jing Environmental Science And Technology Development Co Ltd
Priority to CN201410175487.7A priority Critical patent/CN103951108A/en
Publication of CN103951108A publication Critical patent/CN103951108A/en
Pending legal-status Critical Current

Links

Landscapes

  • Water Treatment By Sorption (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

The invention discloses a process method for treating electroplating comprehensive wastewater, and relates to the field of electroplating wastewater treatment. The method at least comprises the following steps: a, intensively exhausting wastewater into a comprehensive wastewater tank, pumping the wastewater into an oil removing tank by a pump, and entering a settling tank through a regulating tank; b, pumping out a liquid supernatant of the settling tank by the pump to enter quartz sand, active carbon and a microfiltration column to further filter water for mainly removing fine suspended matters of organic substances in the wastewater. The process method disclosed by the invention can be used for directly mixing wastewater of an electroplating workshop without pretreatment and separating treatment, and does not need to regulate PH value in stages; all wastewater passes through in one step, and the process flow is simple, so that operation of a worker and industrial production are facilitated; moreover, heavy metals and water resource can be recycled from electroplating wastewater, so that pollution of wastewater on environment is relieved or avoided, and electroplating clean production is realized, and therefore, electroplating wastewater of gold, sliver, nickel, copper, and the like, with higher additional value can be absorbed and recycled by resin, and good economic benefits are produced.

Description

A kind of processing method of processing electroplating comprehensive waste water
Technical field
The present invention relates to electroplating sewerage process field; Relate in particular to a kind of processing method of processing electroplating comprehensive waste water.
Background technology
Electroplating technology is widely used in the industries such as manufacture, light industry, electronics, the composition of electroplating wastewater is very complicated, except containing cyanogen (CN-) waste water and acidic and alkaline waste water, heavy metal wastewater thereby is the great waste water classification of Electroplating Operations potential hazard, the improvement of electroplating wastewater at home and abroad generally comes into one's own, develop multiple improvement technology, by by poisonous improvement being nontoxic, harmful harmless, to reclaim the measure eliminations such as noble metal, water cycle use and minimizing heavy metal quantity discharged that is converted into; Along with the fast development of electroplating industry and the raising day by day of environmental requirement, at present, oneself starts to enter process for cleanly preparing, overall control and recycling economy conformity stage Electroplating Wastewater Treatment, resource recycling and closed cycle are the main flow directions of development, traditional is that waste electroplating treatment process has: chemical method, ion exchange method, electrolytic process etc., but conventional process electroplating wastewater there are the following problems:
(1) high cost---water cannot recycle, and water rate and sewage disposal expense account for 15%~20% of total cost of production.
(2) wasting of resources---noble metal is discharged in water body, cannot recycle.
(3) environmental pollution---the heavy metal in electroplating wastewater is " contact scar thing forever ", shifts and accumulation in biologic chain, and final harm humans is healthy.
Summary of the invention
The present invention processes electroplating wastewater high cost and environmental pollution in prior art deficiency for overcoming provides a kind of processing method of processing electroplating comprehensive waste water, the feature that the method has low cost, resource recycling and reduces environmental pollution.
A processing method of processing electroplating comprehensive waste water, the method at least comprises the following steps:
A, each road Waste Water Centralized are discharged into comprehensive wastewater pond, with pump, be extracted into grease removal tank again, in grease removal tank ingress, lattice hurdle is set, waste water is removed most of oil slick through grease removal tank, through equalizing tank, enter settling tank, through settling tank natural sedimentation, after several hours, can remove some large suspended substances and other impurity; The a small amount of mud producing in settling tank enters into sludge sump through the extraction of sludge pump, after processing, supernatant liquor is entered to comprehensive wastewater pond again and again process in sludge sump;
The supernatant liquor of b, settling tank is extracted out and is entered quartz sand, gac and micro-filtration post further to water filtration with pump, mainly removes the organic trickle suspended substance in waste water;
The water that c, process are filtered enters calcium magnesium resin column, the calcium ions and magnesium ions in absorption waste water;
The waste water of d, above-mentioned processing enters sexavalent chrome resin column and removes trivalent chromium resin column, and now comprehensive wastewater PH is between 1.0-2.0, and under this acidity, this resin is very strong to the adsorptive power of chromium;
The waste water of e, this processing enters next group except acid resin, and this resin can be transferred to the pH value of waste water between 3-13;
F, through adjusting the processing water of pH value to enter successively de-iron zinc, remove copper, remove nickel, dephosphorization, remove cyanogen, go the resin column of COD and deammoniation nitrogen to adsorb, water outlet can reach national up-to-date emission standard, can be back to use plating shop;
G, the resin column of processing in above-mentioned c, d, e, f step is reused after wash-out;
H, the heavy metal eluting is processed respectively to recovery.
Above-mentioned resin column adsorption process all adopts multicolumn series connection alternate run mode, and wash-out is carried out in the saturated rear disconnection of front pillar, and rear pillar is proceeded adsorption process, and the resin column after wash-out continues operation as rear pillar.
Above-mentionedly remove copper, go the resin column of nickel and de-iron zinc to adopt 4% sulfuric acid to carry out wash-out.
Above-mentionedly remove sexavalent chrome, remove trivalent chromium, dephosphorization and go the resin column of cyanogen to adopt 3% sodium hydroxide to carry out wash-out.
Above-mentioned disacidify, go the resin column of COD and deammoniation nitrogen to adopt 4% hydrochloric acid to carry out wash-out.
Above-mentioned to go calcium magnesium resin model be TM-60, and going sexavalent chrome resin column model is XJ135; Going trivalent chromium resin column model is XJ331, and disacidify resin column model is D547; Going resin of copper model is N931, and going nickel resin column model is N932, and dephosphorization resin column model is J-23; Going COD resin column model is C-15, and deammoniation nitrogen resin column model is T-45.
In above-mentioned steps h, adopt extraction process that the heavy metal solution eluting is carried out to extracting and separating.
Beneficial effect of the present invention: processing method provided by the invention can be without pre-treatment and separating treatment, directly the waste water combination treatment of all plating shops; Secondly need not regulate stage by stage pH value; All waste water is disposable to be passed through, and technical process is simple, is convenient to workman's operation and suitability for industrialized production; And can from electroplating wastewater, reclaim heavy metal and water resources, alleviate or stop the pollution of waste water to environment, realize the cleaner production of electroplating, to electroplating wastewaters such as the higher gold and silver of added value, nickel, copper, can recycle by resin absorption, and produce good economic benefit.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
For better explanation the present invention, be now described further by reference to the accompanying drawings.
A processing method of processing electroplating comprehensive waste water, comprises the following steps:
A, each road Waste Water Centralized are discharged into comprehensive wastewater pond, with pump, be extracted into grease removal tank again, in grease removal tank ingress, lattice hurdle is set, waste water is removed most of oil slick through grease removal tank, through equalizing tank, enter settling tank, through settling tank natural sedimentation, after several hours, can remove some large suspended substances and other impurity; The a small amount of mud producing in settling tank enters into sludge sump through the extraction of sludge pump, after processing, supernatant liquor is entered to comprehensive wastewater pond again and again process in sludge sump;
The supernatant liquor of b, settling tank is extracted out and is entered quartz sand, gac and micro-filtration post further to water filtration with pump, mainly removes the organic trickle suspended substance in waste water;
The water that c, process are filtered enters calcium magnesium resin column, the calcium ions and magnesium ions in absorption waste water;
The waste water of d, above-mentioned processing enters sexavalent chrome resin column and removes trivalent chromium resin column, and now comprehensive wastewater PH is between 1.0-2.0, and under this acidity, this resin is very strong to the adsorptive power of chromium;
The waste water of e, this processing enters next group except acid resin, and this resin can be transferred to the pH value of waste water between 3-13;
F, through adjusting the processing water of pH value to enter successively de-iron zinc, remove copper, remove nickel, dephosphorization, remove cyanogen, go the resin column of COD and deammoniation nitrogen to adsorb, water outlet can reach national up-to-date emission standard, can be back to use plating shop;
G, the resin column of processing in above-mentioned c, d, e, f step is reused after wash-out;
H, the heavy metal eluting is processed respectively to recovery.
Resin column adsorption process all adopts multicolumn series connection alternate run mode, and wash-out is carried out in the saturated rear disconnection of front pillar, and rear pillar is proceeded adsorption process, and the resin column after wash-out continues operation as rear pillar.
Remove copper, go the sulfuric acid of the resin column employing 4% of nickel and de-iron zinc to carry out wash-out.
Remove sexavalent chrome, remove trivalent chromium, dephosphorization and go the resin column of cyanogen to adopt 3% sodium hydroxide to carry out wash-out.
Disacidify, go the resin column of COD and deammoniation nitrogen to adopt 4% hydrochloric acid to carry out wash-out.
Going calcium magnesium resin model is TM-60, and going sexavalent chrome resin column model is XJ135; Going trivalent chromium resin column model is XJ331, and disacidify resin column model is D547; Going resin of copper model is N931, and going nickel resin column model is N932, and dephosphorization resin column model is J-23; Going COD resin column model is C-15, and deammoniation nitrogen resin column model is T-45.
In step h, adopt extraction process that the heavy metal solution eluting is carried out to extracting and separating.
As shown in Figure 1, workflow of the present invention is: plating shop comprehensive wastewater is directly discharged into comprehensive wastewater pond, then pass through grease removal tank, equalizing tank and settling tank, the a small amount of mud producing in settling tank enters into next step sludge sump through the extraction of sludge pump, after processing in sludge sump, supernatant liquor is entered to comprehensive wastewater pond again and again process; Mud in sludge sump enters pressure filter through pneumatic diaphragm pump, and mud is pressed dry.
And a large amount of in settling tank processed supernatant liquor and extract out with pump and enter quartz sand and active carbon filtration further to water filtration, mainly remove the organic trickle suspended substance in waste water; Then enter successively calcium magnesium resin column, remove sexavalent chrome resin column, remove trivalent chromium resin column, deacidification resin column, de-iron zinc resin column, remove resin of copper post, remove nickel resin column, dephosphorization resin column, remove cyanogen resin column, remove COD resin column and deammoniation nitrogen resin column, sewage now can reach industrial discharge rank, also the sewage of processing can be recycled pure water by reverse osmosis technology.
The present invention tests respectively the indices such as its ionic concn, PH and specific conductivity by the comprehensive wastewater of plating shop before processing with after processing, as shown in Table 1, after processing method of the present invention is processed, concentration of heavy metal ion, concentration of cyanide, COD concentration and ammonia nitrogen concentration reduce greatly, and filth-discharging effect is splendid
Table one: electroplating comprehensive waste water is processed every test index of front and back
Test index Before processing After processing
Copper Cu(mg/L) 114.65 0.035
Nickel (mg/L) 99.75 0.067
Sexavalent chrome Cr 6+(mg/L) 120.9 0.004
Trivalent chromium Cr 3+(mg/L) 56.9 0.001
Iron Fe(mg/L) 7.65 0.124
Zinc Zn(mg/L) 160 0.024
Aluminium Al(mg/L)
Calcium Ca(mg/L)
Phosphorus P(mg/L) 298 0.001
Prussiate CN(mg/L) 56 0.001
COD(mg/L) 424 12.04
Ammonia nitrogen NH 3-N(mg/L) 83.8 0.268
PH 2 6
Specific conductivity (us/cm) 14980 85

Claims (7)

1. a processing method of processing electroplating comprehensive waste water, is characterized in that: the method at least comprises the following steps:
A, each road Waste Water Centralized are discharged into comprehensive wastewater pond, with pump, be extracted into grease removal tank again, in grease removal tank ingress, lattice hurdle is set, waste water is removed most of oil slick through grease removal tank, through equalizing tank, enter settling tank, through settling tank natural sedimentation, after several hours, can remove some large suspended substances and other impurity; The a small amount of mud producing in settling tank enters into sludge sump through the extraction of sludge pump, after processing, supernatant liquor is entered to comprehensive wastewater pond again and again process in sludge sump;
The supernatant liquor of b, settling tank is extracted out and is entered quartz sand, gac and micro-filtration post further to water filtration with pump, mainly removes the organic trickle suspended substance in waste water;
The water that c, process are filtered enters calcium magnesium resin column, the calcium ions and magnesium ions in absorption waste water;
The waste water of d, above-mentioned processing enters sexavalent chrome resin column and removes trivalent chromium resin column, and now comprehensive wastewater PH is between 1.0-2.0, and under this acidity, this resin is very strong to the adsorptive power of chromium;
The waste water of e, this processing enters next group except acid resin, and this resin can be transferred to the pH value of waste water between 3-13;
F, through adjusting the processing water of pH value to enter successively de-iron zinc, remove copper, remove nickel, dephosphorization, remove cyanogen, go the resin column of COD and deammoniation nitrogen to adsorb, water outlet can reach national up-to-date emission standard, can be back to use plating shop;
G, the resin column of processing in above-mentioned c, d, e, f step is reused after wash-out;
H, the heavy metal eluting is processed respectively to recovery.
2. the processing method of processing electroplating comprehensive waste water as claimed in claim 1, it is characterized in that: described resin column adsorption process all adopts multicolumn series connection alternate run mode, wash-out is carried out in the saturated rear disconnection of front pillar, and rear pillar is proceeded adsorption process, and the resin column after wash-out continues operation as rear pillar.
3. the processing method of processing electroplating comprehensive waste water as claimed in claim 1, is characterized in that: described in remove copper, go the resin column of nickel and de-iron zinc to adopt 4% sulfuric acid to carry out wash-out.
4. the processing method of processing electroplating comprehensive waste water as claimed in claim 1, is characterized in that: described in remove sexavalent chrome, remove trivalent chromium, dephosphorization and go the resin column of cyanogen to adopt 3% sodium hydroxide to carry out wash-out.
5. the processing method of processing electroplating comprehensive waste water as claimed in claim 1, is characterized in that: disacidify, go the resin column of COD and deammoniation nitrogen to adopt 4% hydrochloric acid to carry out wash-out.
6. the processing method of processing electroplating comprehensive waste water as claimed in claim 1, is characterized in that: going calcium magnesium resin model is TM-60, and going sexavalent chrome resin column model is XJ135; Going trivalent chromium resin column model is XJ331, and disacidify resin column model is D547; Going resin of copper model is N931, and going nickel resin column model is N932, and dephosphorization resin column model is J-23; Going COD resin column model is C-15, and deammoniation nitrogen resin column model is T-45.
7. the processing method of processing electroplating comprehensive waste water as claimed in claim 1, is characterized in that: in described step h, adopt extraction process that the heavy metal solution eluting is carried out to extracting and separating.
CN201410175487.7A 2014-04-25 2014-04-25 Process method for treating electroplating comprehensive wastewater Pending CN103951108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410175487.7A CN103951108A (en) 2014-04-25 2014-04-25 Process method for treating electroplating comprehensive wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410175487.7A CN103951108A (en) 2014-04-25 2014-04-25 Process method for treating electroplating comprehensive wastewater

Publications (1)

Publication Number Publication Date
CN103951108A true CN103951108A (en) 2014-07-30

Family

ID=51328501

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410175487.7A Pending CN103951108A (en) 2014-04-25 2014-04-25 Process method for treating electroplating comprehensive wastewater

Country Status (1)

Country Link
CN (1) CN103951108A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104163522A (en) * 2014-08-11 2014-11-26 郭聪 Process method for treating chemical nickel-plating wastewater
CN104692560A (en) * 2015-03-03 2015-06-10 石泰山 Method for treating phosphorus/phosphine-containing electroplating wastewater
CN105000711A (en) * 2015-07-14 2015-10-28 深圳市绿沁环保科技有限公司 Nickel-containing combined electroplating wastewater treatment device and method
CN106219658A (en) * 2016-08-16 2016-12-14 南昌航空大学 The classification removal of a kind of heavy metals in industrial wastewater and recovery method
CN106517597A (en) * 2016-12-23 2017-03-22 广东新大禹环境科技股份有限公司 Electroplating nickel-containing wastewater treatment system
CN106745943A (en) * 2015-11-24 2017-05-31 湖南衡阳新澧化工有限公司 A kind of process for processing electroplating comprehensive waste water
CN106745944A (en) * 2015-11-24 2017-05-31 湖南衡阳新澧化工有限公司 A kind of electroplating sewerage processes all-in-one
CN107792995A (en) * 2017-11-07 2018-03-13 陈鸣岐 A kind of sewage-treatment plant of efficient galvanization production line
CN112010454A (en) * 2019-05-30 2020-12-01 上海顺樊环保科技有限公司 Electroplating nickel-containing wastewater treatment and recovery method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006002737U1 (en) * 2006-02-21 2006-04-27 Liu, Chih-Chou Filtration unit for drinking water containing bacteria and minerals, includes filter vessels containing fleece, ceramic filter, magnets, activated carbon and copper-zinc alloy
JP2006314886A (en) * 2005-05-11 2006-11-24 Takuma Co Ltd Cleaning method and system of wastewater
CN101070215A (en) * 2006-04-05 2007-11-14 肖应东 Electroplating waste-water reutilizing process
CN101074131A (en) * 2007-07-16 2007-11-21 赵文煜 Method and system for recovering, reutilizing and treating electroplating water
EP2008973A1 (en) * 2007-06-29 2008-12-31 AB Grundstenen 115144 Purification of waste water from cleaning of facade walls
CN103011452A (en) * 2012-12-07 2013-04-03 上海瑞勇实业有限公司 High efficiency ion exchange electroplating wastewater reuse treatment system
CN202865038U (en) * 2012-10-22 2013-04-10 江阴市坤奕环境工程有限公司 Electroplating wastewater system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006314886A (en) * 2005-05-11 2006-11-24 Takuma Co Ltd Cleaning method and system of wastewater
DE202006002737U1 (en) * 2006-02-21 2006-04-27 Liu, Chih-Chou Filtration unit for drinking water containing bacteria and minerals, includes filter vessels containing fleece, ceramic filter, magnets, activated carbon and copper-zinc alloy
CN101070215A (en) * 2006-04-05 2007-11-14 肖应东 Electroplating waste-water reutilizing process
EP2008973A1 (en) * 2007-06-29 2008-12-31 AB Grundstenen 115144 Purification of waste water from cleaning of facade walls
CN101074131A (en) * 2007-07-16 2007-11-21 赵文煜 Method and system for recovering, reutilizing and treating electroplating water
CN202865038U (en) * 2012-10-22 2013-04-10 江阴市坤奕环境工程有限公司 Electroplating wastewater system
CN103011452A (en) * 2012-12-07 2013-04-03 上海瑞勇实业有限公司 High efficiency ion exchange electroplating wastewater reuse treatment system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104163522A (en) * 2014-08-11 2014-11-26 郭聪 Process method for treating chemical nickel-plating wastewater
CN104692560A (en) * 2015-03-03 2015-06-10 石泰山 Method for treating phosphorus/phosphine-containing electroplating wastewater
CN104692560B (en) * 2015-03-03 2016-07-06 石泰山 A kind of processing method containing phosphor/phosphine electroplating wastewater
CN105000711A (en) * 2015-07-14 2015-10-28 深圳市绿沁环保科技有限公司 Nickel-containing combined electroplating wastewater treatment device and method
CN105000711B (en) * 2015-07-14 2018-02-16 深圳市绿沁环保科技有限公司 A kind of method for handling the electroplating comprehensive waste water containing chemical nickel
CN106745943A (en) * 2015-11-24 2017-05-31 湖南衡阳新澧化工有限公司 A kind of process for processing electroplating comprehensive waste water
CN106745944A (en) * 2015-11-24 2017-05-31 湖南衡阳新澧化工有限公司 A kind of electroplating sewerage processes all-in-one
CN106219658A (en) * 2016-08-16 2016-12-14 南昌航空大学 The classification removal of a kind of heavy metals in industrial wastewater and recovery method
CN106517597A (en) * 2016-12-23 2017-03-22 广东新大禹环境科技股份有限公司 Electroplating nickel-containing wastewater treatment system
CN107792995A (en) * 2017-11-07 2018-03-13 陈鸣岐 A kind of sewage-treatment plant of efficient galvanization production line
CN112010454A (en) * 2019-05-30 2020-12-01 上海顺樊环保科技有限公司 Electroplating nickel-containing wastewater treatment and recovery method

Similar Documents

Publication Publication Date Title
CN103951108A (en) Process method for treating electroplating comprehensive wastewater
CN203904113U (en) Classified treatment equipment for sewage
CN103073123B (en) Metal plating wastewater recycle using and recycling technology process
CN201634531U (en) Electroplating wastewater diversion treatment standard emission system
CN103539303A (en) Electroplating wastewater treating and recycling process and system
CN101531425B (en) Method for treating ammonia nitrogen wastewater
CN104609613A (en) Treatment device and treatment method for catalyst wastewater
CN102775004A (en) Mixed electric plating wastewater treatment system and process method of mixed electric plating wastewater treatment system
CN104817213A (en) Heavy metal wastewater treatment process in electroplating and special device thereof
CN102115272A (en) Processing and reusing method and device for waste water of aluminium oxidation washing
CN104803542A (en) Integrated treatment and reuse technology of esterification wastewater
CN103112970A (en) Heavy metal recovery and zero emission system and process
CN113697990A (en) Quality-divided flow treatment process for aluminum anodic oxidation wastewater
CN204752384U (en) Electroplate rinsing effluent disposal system
CN201785261U (en) Treatment and recovery device for aluminum oxidation rinsing wastewater
CN204079654U (en) A kind of electroplating waste water treatment system containing many kinds of metal ions
CN203639277U (en) Electroplating wastewater treatment equipment
CN203320173U (en) Electroplating wastewater recycling discharge reduction device
CN203307440U (en) Recycling device for processing copper ions in electroplating wastewater
CN106430798A (en) Acidic oil wastewater treatment process
CN212051010U (en) Concentrated retrieval and utilization device of reverse osmosis dense water
CN102826677A (en) Full-cycling technology for vanadium smelting wastewater
CN108264163B (en) Treatment process of electroplating wastewater
CN110921950A (en) Electroplating wastewater recycling treatment method
CN205442965U (en) Wastewater treatment device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140730