CN102115282B - Method for recycling copper smelting wastewater - Google Patents
Method for recycling copper smelting wastewater Download PDFInfo
- Publication number
- CN102115282B CN102115282B CN201110022833A CN201110022833A CN102115282B CN 102115282 B CN102115282 B CN 102115282B CN 201110022833 A CN201110022833 A CN 201110022833A CN 201110022833 A CN201110022833 A CN 201110022833A CN 102115282 B CN102115282 B CN 102115282B
- Authority
- CN
- China
- Prior art keywords
- copper smelting
- wastewater
- recycling
- water
- exchange resin
- 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.)
- Active
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the technical field of recycling of industrial wastewater, in particular to a method for recycling copper smelting wastewater. The method has a process principle that copper smelting wastewater is treated by utilizing the combination process of one-step coagulation sedimentation and ion exchange, and effluent quality meets the specifications of water quality standard (GB50050-1995) for circulating cooling water, urban sewage recycling and urban miscellaneous water quality (GB/T18920-2002) and urban sewage recycling landscape environment water quality (GB/T18921-2002). The method is carried out by starting from the source of wastewater treatment and used for preparing recycled water according with requirements through simple procedures and lower operation cost. The method has a low treatment cost and a reliable treatment effect and is easy to popularize. With the technology, the method for recycling copper smelting wastewater, with low cost, high performance and high added values, can be provided, and has wide market prospects and considerable social and economic benefits.
Description
Technical field
The present invention relates to the recycling processing technique field of trade effluent, be specifically related to a kind of process for reclaiming of copper smelting wastewater.
Background technology
Copper is smelted in the production process, has produced mass production waste water, respectively from each operation of producing: between concentrate drying, smelting furnace, converter, anode furnace, generator car, oxygen generating station, sulfuric acid plant, potroom, slag be cold etc.Main pollutant component in the waste water is soda acid, suspended substance, heavy metal ion (like Cu, Pb, Cd, As etc.) etc.
In the copper smelting plant wastewater treatment process; Be a large amount of acid waste water that neutralizes; The traditional lime iron salt method has added a large amount of milk of lime, ferrous sulfate, has so just caused final outflow water Ca2+ content higher (about 600-1000mg/L), and total dissolved solid (salt) is also higher; In addition, the treatment scheme of traditional lime iron salt method is tediously long, operational management is complicated, cost is higher relatively, and handled water can only accomplish qualified discharge basically, and does not reach the water quality standard of reuse water.Therefore, how to improve one of the focus that technical study is domestic and international researcher, engineering technical personnel studied of copper smelting wastewater Treatment for Reuse.
On the Treatment for Reuse research of copper smelting wastewater and using, studying more at present is to adopt membrane separation process.Membrane separation technique is through utilizing film that special organic polymer or inorganic materials process to the chemosmotic difference of each components selection in the mixture; With outside energy or chemical potential difference be impellent to two-pack or multi-component liquid separate, classification, purification and rich long-pending technology, in advanced treatment of wastewater, using mainly is micro-filtration (MF), ultrafiltration (UF), electrodialysis, nanofiltration and r-o-etc. comparatively widely.
Because the film that membrane separation process adopted is contaminated easily, working cost is higher, investment cost is also very high, should the application of technology in industry so limited.
Summary of the invention
To the deficiency that exists in the prior art, the object of the present invention is to provide a kind of process for reclaiming of copper smelting wastewater, its technological principle is to utilize the combination process of a step coagulating sedimentation+IX to handle waste water.
Wherein, a step coagulating sedimentation at first adopts the method that adds milk of lime that the pH value of waste water is adjusted to 7.5-8.0, and then adds coagulant polymeric aluminium chloride and coagulant aids SEPIGEL 305 successively; Wherein the dosage of Poly aluminum Chloride (PAC) is: 20-40mg/L; More excellent dosage is: 25-35mg/L, and the dosage of SEPIGEL 305 is: 5-10mg/L, more excellent dosage is: 5-8mg/L; The coagulating time is: 20-30min, the solid-liquid separation ST is: 70-90min.
After supernatant and the precipitate and separate; Supernatant spent ion exchange resin is again cooked further processing; Successively through strongly acidic cationic exchange resin and strong basicity (or weakly alkaline) anion-exchange resin treatment; Wherein the filtering velocity of Zeo-karb is: 10-15m/h, the filtering velocity of anionite-exchange resin is: 6-15m/h.Produce the water cycle normal, water outlet TDS＜150mg/L, hardness (in lime carbonate)＜50mg/L, other water-quality guideline also can reach corresponding quality of reused water standard.
To sum up visible; The process for reclaiming of a kind of copper smelting wastewater of the present invention can be realized comprehensive treating process and reach the quality of reused water standard the complicated copper smelting wastewater of composition; And processing cost is low, treatment effect is reliable; Be prone to promote, have vast market prospect, considerable economic and social benefit.
Compared with prior art, the inventive method has following advantage:
1, the copper smelting wastewater process for reclaiming that the present invention adopted is from the source of wastewater treatment, through simple process flow, lower working cost, makes satisfactory reuse water.Overcome the shortcoming that traditional copper smelting wastewater is handled: traditional copper smelting wastewater treatment process adopt more lime iron salt method+multistep solid-liquid separation combination process; Treatment scheme is tediously long, operational management is complicated, cost is higher relatively; And handled water can only accomplish qualified discharge basically, do not reach the quality of reused water standard.
2, technology of the inventive method and flow process are compact, easy to operate, are easy to realize industrial applications.Device that the present invention selects for use can be realized equipmentization, reduce and take up an area of and the saving energy consumption, and capital cost is reduced greatly; Simultaneously, the Treatment for Reuse of waste water easily is automated control, personnel operation is easy, and the good industrial application prospect is arranged.
Embodiment
Below in conjunction with concrete embodiment technical scheme of the present invention is done to further describe, but protection scope of the present invention is not limited to these embodiment.Every do not deviate from the change of the present invention design or be equal to substitute include within protection scope of the present invention.
Embodiment 1
Process object: the comprehensive wastewater that Daye Nonferrous Metal Co.,Ltd's copper smelting plant is discharged.
Influent quality: pH:6.5; SS:200mg/L; Cu:12.6mg/L; As:8.25mg/L;
Pb:2.23mg/L; Cd:1.85mg/L; Hardness (in lime carbonate): 1100.5mg/L;
Total dissolved solid (TDS): 1614.3mg/L.
Main technologic parameters:
At first add milk of lime waste water ph is adjusted to 8.0;
Coagulant polymeric aluminium chloride (PAC) dosage: 25mg/L;
Coagulant aids SEPIGEL 305 (PAM, cationic) dosage: 5mg/L;
The coagulating time: 30min;
ST: 70min;
The further treatment of selected spent ion exchange resin combination of the supernatant after the solid-liquid separation: 001 * 7 strongly acidic styrene type cation exchange resin+D202 macroporous strong basic styrene series type anionite-exchange resin;
The filtering velocity of Zeo-karb: 12m/h;
The filtering velocity of anionite-exchange resin: 7.8m/h.
Effluent quality: pH:7.6; SS:8.5mg/L; Cu:0.12mg/L; As:0.09mg/L;
Pb:0.08mg/L; Cd:0.06mg/L; Hardness (in lime carbonate): 10.3mg/L;
Total dissolved solid (TDS): 56.2mg/L all reaches respective standard (water quality standard of recirculated cooling water (GB50050-1995), " urban sewage reutilization city miscellaneous water water quality " (GB/T18920-2002), " urban sewage reutilization water for scenic environment use water quality " (GB/T18921-2002)).
Embodiment 2
Process object: the comprehensive wastewater that Daye Nonferrous Metal Co.,Ltd's copper smelting plant is discharged.
Influent quality: pH:6.0; SS:240mg/L; Cu:22.5mg/L; As:5.31mg/L;
Pb:1.98mg/L; Cd:1.63mg/L; Hardness (in lime carbonate): 880.3mg/L;
Total dissolved solid (TDS): 1236.2mg/L.
Main technologic parameters:
At first add milk of lime waste water ph is adjusted to 8.0;
Coagulant polymeric aluminium chloride dosage: 30mg/L;
Coagulant aids SEPIGEL 305 (PAM, cationic) dosage: 6mg/L;
The coagulating time: 25min;
ST: 80min;
The further treatment of selected spent ion exchange resin combination of the supernatant after the solid-liquid separation:
D001 large hole strong acid styrene system cation exchange resin+D301SC macroreticular weakly base styrene series anion exchange resin;
The filtering velocity of Zeo-karb: 13m/h;
The filtering velocity of anionite-exchange resin: 14m/h.
Effluent quality: pH:7.8; SS:6.9mg/L; Cu:0.23mg/L; As:0.08mg/L;
Pb:0.07mg/L; Cd:0.07mg/L; Hardness (in lime carbonate): 8.7mg/L;
Total dissolved solid (TDS): 48.5mg/L all reaches respective standard (water quality standard of recirculated cooling water (GB50050-1995), " urban sewage reutilization city miscellaneous water water quality " (GB/T18920-2002), " urban sewage reutilization water for scenic environment use water quality " (GB/T18921-2002)).
Embodiment 3
Process object: the comprehensive wastewater that Daye Nonferrous Metal Co.,Ltd's copper smelting plant is discharged.
Influent quality: pH:6.2; SS:280mg/L; Cu:25.3mg/L; As:5.25mg/L;
Pb:2.83mg/L; Cd:1.05mg/L; Hardness (in lime carbonate): 1521.5mg/L;
Total dissolved solid (TDS): 2017.2mg/L.
Main technologic parameters:
At first add milk of lime waste water ph is adjusted to 7.5;
Coagulant polymeric aluminium chloride dosage: 35mg/L;
Coagulant aids SEPIGEL 305 (PAM, cationic) dosage: 8mg/L;
The coagulating time: 20min;
ST: 90min;
The further treatment of selected spent ion exchange resin combination of the supernatant after the solid-liquid separation:
D001 large hole strong acid styrene system cation exchange resin+201 * 7 strongly basic anion exchange resins;
The filtering velocity of Zeo-karb: 14m/h;
The filtering velocity of anionite-exchange resin: 6.8m/h.
Effluent quality: pH:7.8; SS:9.3mg/L; Cu:0.32mg/L; As:0.09mg/L;
Pb:0.07mg/L; Cd:0.05mg/L; Hardness (in lime carbonate): 15.3mg/L;
Total dissolved solid (TDS): 90.8mg/L all reaches respective standard (water quality standard of recirculated cooling water (GB50050-1995), " urban sewage reutilization city miscellaneous water water quality " (GB/T18920-2002), " urban sewage reutilization water for scenic environment use water quality " (GB/T18921-2002)).
Claims (1)
1. the process for reclaiming of a copper smelting wastewater, its step is following:
At first the pH value of waste water is transferred to 7.5-8.0 with milk of lime;
Add the coagulant polymeric aluminium chloride of 25-35mg/L and the coagulant aids cationic-type polyacrylamide of 5-8mg/L then successively, coagulating 20-30min precipitates solid-liquid separation then, ST 70-90min;
Get supernatant at last and cross strongly acidic cationic exchange resin and strongly basic anion exchange resin successively, the filtering velocity of wherein crossing strongly acidic cationic exchange resin and strongly basic anion exchange resin is respectively 10-15m/h and 6-15m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110022833A CN102115282B (en) | 2011-01-20 | 2011-01-20 | Method for recycling copper smelting wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110022833A CN102115282B (en) | 2011-01-20 | 2011-01-20 | Method for recycling copper smelting wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102115282A CN102115282A (en) | 2011-07-06 |
| CN102115282B true CN102115282B (en) | 2012-10-24 |
Family
ID=44214225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110022833A Active CN102115282B (en) | 2011-01-20 | 2011-01-20 | Method for recycling copper smelting wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102115282B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826684A (en) * | 2012-09-14 | 2012-12-19 | 上海问鼎水处理工程有限公司 | Method for removing lead ions in sewage |
| CN102874986B (en) * | 2012-10-19 | 2015-05-13 | 上海化学试剂研究所 | Treatment method for wastewater containing organic matters during production of N-phenyl maleimide |
| CN103145227A (en) * | 2013-03-25 | 2013-06-12 | 西安德奇水处理有限公司 | Flocculation treatment method for copper-containing wastewater |
| CN103435184A (en) * | 2013-08-26 | 2013-12-11 | 苏州富奇诺水治理设备有限公司 | Heavy metal-containing wastewater treatment method |
| CN108117213A (en) * | 2017-12-18 | 2018-06-05 | 天津膜天膜科技股份有限公司 | A kind of metal Copper making waste discharge recovery process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549924A (en) * | 2008-03-31 | 2009-10-07 | 洪增良 | Three-stage type electroplating waste water treatment method |
| CN101746906A (en) * | 2008-12-03 | 2010-06-23 | 五邑大学 | Method for processing electroplating wastewater with heavy metal ions |
-
2011
- 2011-01-20 CN CN201110022833A patent/CN102115282B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102115282A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102603097B (en) | Advanced treatment and recycling process for wastewater containing heavy metal ions | |
| CN103723799B (en) | Electrodialyzer and near-zero-release industrial wastewater recycling technique | |
| CN104370394B (en) | A kind of processing method of surface water desalter by-product brine waste | |
| CN102115282B (en) | Method for recycling copper smelting wastewater | |
| CN112374705B (en) | High-salinity wastewater treatment process for iron and steel enterprises | |
| CN103739165B (en) | A kind of process for reclaiming of vehicle coating wastewater | |
| CN101987767B (en) | Method for producing wastewater with high ammonia nitrogen and high salinity by treating rare earth with membrane integration | |
| CN104445706B (en) | A kind of highly concentrated brine concentration method | |
| CN101759313B (en) | Method for recycling high-salinity heavy metal-enriched waste water from vanadium extraction from stone coal | |
| CN104445501A (en) | Electroplating wastewater treatment agent | |
| CN106517588B (en) | Efficient treatment method for graphene production wastewater | |
| CN110655258A (en) | Novel integrated treatment system and process for zero discharge of high-salinity wastewater in coal chemical industry | |
| CN101696071A (en) | Zero-discharge treatment process for industrial wastewater of iron and steel plant | |
| CN106277647A (en) | The process of mining smelting industry heavy metal wastewater thereby advanced treating | |
| CN110683709A (en) | Zero-discharge treatment method for fluorine-containing wastewater | |
| CN105540971A (en) | Process for crushed coal pressurized gasification industrial wastewater deep processing and high recovery rate | |
| CN105858981A (en) | Quality-divided reclamation treatment device and process for strong brine | |
| CN105621734A (en) | Comprehensive electroplating wastewater treatment process | |
| CN105254066A (en) | Treatment device and method capable of achieving waste water zero discharge of power plant with large water volume | |
| CN105217756A (en) | A kind of flocculation agent processing trade effluent and preparation method thereof | |
| CN109052785A (en) | A kind of Zero-discharge treating process of thin-film solar cells production waste water | |
| CN115557652B (en) | Zinc-nickel-containing wastewater recycling treatment system and method | |
| CN104016510B (en) | The Application way of a kind of thermal power plant reverse osmosis concentrated water and municipal effluent interaction process | |
| CN110156237A (en) | A kind of waste water water conservancy recovery method | |
| CN205710215U (en) | A kind of strong brine step processing equipment for recycling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |