CN102583836A - Method for treating copper/lead/zinc ore mining sewage - Google Patents
Method for treating copper/lead/zinc ore mining sewage Download PDFInfo
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- CN102583836A CN102583836A CN2012100696339A CN201210069633A CN102583836A CN 102583836 A CN102583836 A CN 102583836A CN 2012100696339 A CN2012100696339 A CN 2012100696339A CN 201210069633 A CN201210069633 A CN 201210069633A CN 102583836 A CN102583836 A CN 102583836A
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Abstract
The invention provides a method for treating copper/lead/zinc ore mining sewage, which can effectively reduce the contents of copper, lead, zinc and other heavy metal ions and suspended solids in the underground copper/lead/zinc ore mine drainage and can prevent environmental pollution due to the underground copper/lead/zinc ore mine drainage. The method for treating the copper/lead/zinc ore mining sewage comprises the following steps adding lime into the mining sewage, stirring to adjust to an alkaline pH level, adding coagulants and flocculants, stirring to enable the heavy metal ions and suspended solids to flocculate, performing concentration precipitation using a concentrator to remove the heavy metal ions and suspended solids, and adding sulfuric acid to the clear effluent from the concentrator to adjust to a neutral pH level.
Description
Technical field
The present invention relates to the particularly treatment process of mining externally discharged waste water in the copper-lead zinc ore production technique of metallic ore; With heavy metal ion and solid suspension contents such as copper, lead, zinc in effective reduction copper-lead zinc ore mining sewage; Make it qualified discharge or utilization, eliminate of the pollution of copper-lead zinc ore mining sewage environment.
Background technology
Copper, lead, zinc are the valuable sources of national economy; The copper-lead zinc ore has after few part copper, lead, the zinc oxidation water-soluble in recovery process, also has small amount of solid copper-lead zinc mineral also to get in the tunnel water, therefore in the mining process; Generally all contain heavy metal ion and mineral solids particles thereof such as copper, lead, zinc in the water that the mining of copper-lead zinc ore is discharged; Heavy metal content such as copper, lead, zinc are also high especially in the mine water that discharge in some mine, and at present, China compares with the western countries of prosperity; The mine that the mine water that mining is discharged is handled seldom, severe contamination the mine surrounding environment; Meanwhile, China water resources lacks, and the outer draining in mine is because through handling, can not good use, wasted precious water resource.Increasingly high along with environmental protection requirement presses for mining sewage handled, and more needs a kind of treatment process of practicable copper-lead zinc ore mining sewage.
Summary of the invention
The purpose of this invention is to provide the dig up mine treatment process of sewage of a kind of copper-lead zinc ore that can effectively reduce draining environmental pollution outside heavy metal ion such as copper, lead, zinc in the outer draining in copper-lead zinc ore mining down-hole and solid suspension content, the elimination copper-lead zinc ore mining down-hole.
Copper-lead zinc ore mining sewage water treatment method of the present invention; Be in mining sewage, to add lime stirring and adjusting pH value to alkalescence; Adding the stirring of coagulating agent and flocculation agent makes heavy metal ion and suspended solid generate floss; Remove heavy metal and suspended solid with the thickner concentrating and precipitating again, the clear water that thickner is discharged adds the sulphur acid for adjusting pH value and gets final product to neutral.
Above-mentioned mining sewage water treatment method adds lime stirring and adjusting pH value and is not more than 9.5 in mining sewage, preferred pH value is 8.5.
Above-mentioned mining sewage water treatment method, coagulating agent are Tai-Ace S 150 or bodied ferric sulfate, and flocculation agent is a SEPIGEL 305.Preferably, the add-on of coagulating agent is a 15-25 gram/ton, and the add-on of flocculation agent is a 0.4-0.6 gram/ton.Best, the add-on of coagulating agent is 20 gram/tons, and the add-on of flocculation agent is 0.5 gram/ton.
Beneficial effect of the present invention: with the outer draining (mining sewage) in copper-lead zinc ore mining down-hole through adding lime stirring and adjusting pH value to alkalescence, add coagulating agent (like Tai-Ace S 150, bodied ferric sulfate) with flocculation agent (like SEPIGEL 305) stirring make heavy metal ion and suspended solid generation floss, again with thickner concentrating and precipitating removal heavy metal and suspended solid; The thickner clear water adds sulphur acid for adjusting pH value to neutrality and carries out qualified discharge or utilization, and thickner precipitating sludge and milltailings one play the stope consolidated fill and solidify the storehouse, ore deposit that perhaps truncates.Outside the metallic ore of the present invention mining down-hole in the draining heavy metal ion such as copper, lead, zinc and solid suspension content far below standard of drainage GB25466-2010 outside the national mine " plumbous zinc emission of industrial pollutants standard "; Have advantages such as processing efficiency height, processing cost be low; Treat effluent can fully utilize in mine ore dressing production, greening etc., thoroughly eliminates the pollution of mining sewage to environment.The present invention is applicable to the processing of other metallic ore mining sewage too.
Description of drawings
Fig. 1 is a metallic ore mining WWT schema;
Fig. 2 is the metallic ore mining WWT schema of embodiment 1;
Fig. 3 is the metallic ore mining WWT schema of embodiment 2;
Fig. 4 is the metallic ore mining WWT schema of embodiment 3.
Embodiment
Embodiment 1
The copper-lead zinc ore mining sewage composition of present embodiment 1 is seen table 1.
Table 1 unit: mg/L (except the pH value)
Annotate: discharging standards is meant (GB25466-2010) " plumbous zinc emission of industrial pollutants standard ", below identical.
The technical matters condition of embodiment 1 is: schema such as Fig. 2; Adding lime 1000g/t stirring in the mining sewage regulated pH=8.5 in 5 minutes, adds aluminum sulfate coagulant 20g/t stirring 5 minutes, adds flocculation agent SEPIGEL 305 (PAM) 0.5g/t stirring 5 minutes; With thickner concentrating and precipitating 2 hours; Clear liquor adds the sulphur acid for adjusting pH value to neutral, carries out assay, and precipitating sludge filters.Obtain result in the table 1.
Can find out by result in the table 1; Copper-lead zinc ore mining COD of sewage cr before being untreated, SS, copper, lead, zinc, sulfide content are all above national up-to-date emission standard (GB25466-2010), and mining sewage each item index has after treatment all reached emission standard (GB25466-2010) requirement.
Embodiment 2
The copper-lead zinc ore mining sewage composition of present embodiment 2 is seen table 2.
Table 2 unit: mg/L (except the pH value)
The technical matters condition of embodiment 2 is: schema such as Fig. 3; Add lime 1000g/t stir regulated pH=8.5 in 5 minutes, add coagulant polymeric ferric sulfate 20g/t stir 5 minutes, add flocculation agent SEPIGEL 305 (PAM) 0.5g/t stir 5 minutes, with thickner concentrating and precipitating 2 hours; Clear liquor adds the sulphur acid for adjusting pH value to neutral; Carry out assay, precipitating sludge filters.Obtain result in the table 2.
Can find out that by result in the table 2 adopt primary water CODcr, SS, copper, lead, zinc, sulfide content and Fig. 2 flow processing water result of Fig. 3 flow processing approaching basically, each item index has also all reached emission standard (GB25466-2010) requirement.
Embodiment 3
The copper-lead zinc ore mining sewage composition of present embodiment 3 is seen table 3.
Sewage component list 3 units: mg/L (except the pH value)
The technical matters condition of embodiment 3 is: schema such as Fig. 4, and (a kind of is not add lime, pH=6 to adopt different lime consumptions; A kind of lime 2000g/t that adds; PH=9.5), add coagulant polymeric ferric sulfate 20g/t stir 5 minutes, add flocculation agent SEPIGEL 305 (PAM) 0.5g/t stir 5 minutes, with thickner concentrating and precipitating 2 hours; Clear liquor is regulated the pH value to neutral, carries out assay, and precipitating sludge filters.Obtain result in the table 3.
Can find out by result in the table 3; PH value in the primary water of employing Fig. 4 flow processing before copper, lead, zinc, sulfide content and the WWT has bigger relation; Along with increasing the pH value, increases lime consumption; It is thorough more that heavy metal is removed, but it is also many more to be used for the sulfuric acid consumption that primary water regulates, and processing cost is also high more.The heavy metal that does not add in the lime sewage is removed not thorough.
Claims (6)
1. copper-lead zinc ore mining sewage water treatment method; It is characterized in that: in mining sewage, add lime stirring and adjusting pH value to alkalescence; Adding the stirring of coagulating agent and flocculation agent makes heavy metal ion and suspended solid generate floss; Remove heavy metal and suspended solid with the thickner concentrating and precipitating again, the clear water that thickner is discharged adds the sulphur acid for adjusting pH value and gets final product to neutral.
2. mining sewage water treatment method as claimed in claim 1 is characterized in that: in mining sewage, add lime stirring and adjusting pH value and be not more than 9.5.
3. mining sewage water treatment method as claimed in claim 2 is characterized in that: in mining sewage, adding lime stirring and adjusting pH value is 8.5.
4. mining sewage water treatment method as claimed in claim 1 is characterized in that: coagulating agent is Tai-Ace S 150 or bodied ferric sulfate, and flocculation agent is a SEPIGEL 305.
5. mining sewage water treatment method as claimed in claim 4 is characterized in that: the add-on of coagulating agent is a 15-25 gram/ton, and the add-on of flocculation agent is a 0.4-0.6 gram/ton.
6. mining sewage water treatment method as claimed in claim 5 is characterized in that: the add-on of coagulating agent is 20 gram/tons, and the add-on of flocculation agent is 0.5 gram/ton.
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| CN2012100696339A CN102583836A (en) | 2012-03-15 | 2012-03-15 | Method for treating copper/lead/zinc ore mining sewage |
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| CN2012100696339A CN102583836A (en) | 2012-03-15 | 2012-03-15 | Method for treating copper/lead/zinc ore mining sewage |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601315A (en) * | 2013-11-12 | 2014-02-26 | 西南科技大学 | Method for treating heavy metal wastewater in mining and metallurgy by use of waste tea dust |
| CN103739125A (en) * | 2014-01-24 | 2014-04-23 | 北京中科润石油技术服务有限公司 | Treatment method for preparing industrial water from borehole operation wastewater |
| CN104478123A (en) * | 2014-11-26 | 2015-04-01 | 广东省工业技术研究院(广州有色金属研究院) | Method for treating mercury-containing mineral processing tail water |
| CN104803462A (en) * | 2015-04-14 | 2015-07-29 | 南通华新环保设备工程有限公司 | Technological method for advanced sewage treatment |
| CN105084598A (en) * | 2015-08-28 | 2015-11-25 | 马鞍山市桓泰环保设备有限公司 | Treatment method of treatment device for mercury, cadmium and lead-contained liquid waste |
| CN105254069A (en) * | 2015-11-03 | 2016-01-20 | 南京大学 | Wolframine beneficiation wastewater treatment process |
| CN106115889A (en) * | 2016-08-03 | 2016-11-16 | 许祚员 | A kind of zinc sewage-treating agent and preparation method thereof |
| CN106145299A (en) * | 2016-08-03 | 2016-11-23 | 许祚员 | A kind of copper sewage-treating agent and preparation method thereof |
| CN108178371A (en) * | 2017-12-28 | 2018-06-19 | 西北稀有金属材料研究院宁夏有限公司 | A kind of method for removing beryllium and copper simultaneously in sewage treatment process containing beryllium copper |
| CN112794421A (en) * | 2020-12-29 | 2021-05-14 | 四川安宁铁钛股份有限公司 | Method for treating mine sewage by using iron-containing waste liquid |
| CN115465970A (en) * | 2022-09-27 | 2022-12-13 | 江西江铜银珠山矿业有限公司 | Production process for degrading zinc content in wastewater by comprehensively stirring lime and zinc-containing wastewater |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601315B (en) * | 2013-11-12 | 2016-04-20 | 西南科技大学 | A kind of method utilizing useless tea to consider process mining and metallurgy heavy metal wastewater thereby to be worth doing |
| CN103601315A (en) * | 2013-11-12 | 2014-02-26 | 西南科技大学 | Method for treating heavy metal wastewater in mining and metallurgy by use of waste tea dust |
| CN103739125A (en) * | 2014-01-24 | 2014-04-23 | 北京中科润石油技术服务有限公司 | Treatment method for preparing industrial water from borehole operation wastewater |
| CN104478123A (en) * | 2014-11-26 | 2015-04-01 | 广东省工业技术研究院(广州有色金属研究院) | Method for treating mercury-containing mineral processing tail water |
| CN104803462A (en) * | 2015-04-14 | 2015-07-29 | 南通华新环保设备工程有限公司 | Technological method for advanced sewage treatment |
| CN105084598A (en) * | 2015-08-28 | 2015-11-25 | 马鞍山市桓泰环保设备有限公司 | Treatment method of treatment device for mercury, cadmium and lead-contained liquid waste |
| CN105084598B (en) * | 2015-08-28 | 2017-07-14 | 马鞍山市桓泰环保设备有限公司 | A kind of mercurous, cadmium, the processing method of lead liquid waste treating apparatus |
| CN105254069A (en) * | 2015-11-03 | 2016-01-20 | 南京大学 | Wolframine beneficiation wastewater treatment process |
| CN106115889A (en) * | 2016-08-03 | 2016-11-16 | 许祚员 | A kind of zinc sewage-treating agent and preparation method thereof |
| CN106145299A (en) * | 2016-08-03 | 2016-11-23 | 许祚员 | A kind of copper sewage-treating agent and preparation method thereof |
| CN108178371A (en) * | 2017-12-28 | 2018-06-19 | 西北稀有金属材料研究院宁夏有限公司 | A kind of method for removing beryllium and copper simultaneously in sewage treatment process containing beryllium copper |
| CN112794421A (en) * | 2020-12-29 | 2021-05-14 | 四川安宁铁钛股份有限公司 | Method for treating mine sewage by using iron-containing waste liquid |
| CN115465970A (en) * | 2022-09-27 | 2022-12-13 | 江西江铜银珠山矿业有限公司 | Production process for degrading zinc content in wastewater by comprehensively stirring lime and zinc-containing wastewater |
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Application publication date: 20120718 |