CN104944560A - Quick non-ferrous metal mine acid wastewater treatment method - Google Patents
Quick non-ferrous metal mine acid wastewater treatment method Download PDFInfo
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- CN104944560A CN104944560A CN201510308295.3A CN201510308295A CN104944560A CN 104944560 A CN104944560 A CN 104944560A CN 201510308295 A CN201510308295 A CN 201510308295A CN 104944560 A CN104944560 A CN 104944560A
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Abstract
The invention discloses a quick non-ferrous metal mine acid wastewater treatment method. The method mainly comprises three steps of performing water drainage, performing neutralizing treatment and allowing treated wastewater to be used in the dressing production technology, and particularly comprises the following steps: firstly, wastewater flows or is drained to a regulating reservoir near to a dressing plant through a water pump, acid wastewater in the regulating reservoir is pumped into a neutralization reaction tank, then an alkaline reagent is added for neutralizing treatment, and finally the treated solution and treated residues which are subjected to neutralizing treatment are used in the dressing production technology according to a certain proportion. Based on the characteristic that non-ferrous metal mine acid wastewater is large in water amount, complex in water quality, high in yield of residues after treatment, and the like, the acid wastewater subjected to neutralizing treatment is directly returned to the dressing production technology process, and the function that dressing production indexes are free of influence, and even are increased is realized, so that zero discharge of acid wastewater and no residue storage are realized, the engineering construction period is shortened, the engineering construction amount is reduced, and the engineering investment and the running cost are reduced.
Description
Technical field
The present invention relates to field of Environment Protection Pollutant Treatment method, particularly a kind of nonferrous metal mine acid waste water immediate processing method.
Background technology
Most of nonferrous metal mine belongs to polymetallic ore, ore contains the valuable elements such as copper, lead, zinc, gold and silver, molybdenum, these metallic elements are mainly based on secondary sulphide ores, these mineral are in recovery process, due to the acting in conjunction of air, water and bacterium, form sulfuric acid, metal sulfate, and the many kinds of metal ions in stripping ore, thus form the acid waste water containing copper, iron, zinc, manganese etc.After acid wastewater in mine enters environment, the pH value of water body can be made to change, destroy the natural shock absorption of water body, eliminate or suppress microbial growth, hinder self purification of water body, cause the phenomenons such as water body appearance is smelly, variable color, and structures and other mechanical means such as sour water meeting heavy corrosion pipeline, water pump, cement, bring huge threat to the health of people, life and production.At present, chemical precipitation method, ion exchange method, electrolytic process, membrane separation process etc. are mainly contained to the method for acid wastewater in mine process.Chemical precipitation method equipment is simple, technology maturation, but reaction produces the quantity of slag greatly, easily cause secondary pollution, and moisture percentage in sewage sludge is high, easily causes the waste of water resources.The heavy-metal acid waste water of ion exchange method suitable treatment lower concentration, treatment effect is better, but exchange resin regeneration used is frequent, and process cost is higher.Electrolytic process be applied to wastewater treatment have equipment simple, take up an area little, easy to operate, effectively reclaim the advantages such as valuable metal, but current consumption is large, and the shortcomings such as wastewater treatment capacity is little limit it and obtain range of application.Membrane separation process is applicable to process low-concentration heavy metal acid waste water, and producing water can cyclically utilizing, but condensed water needs process further.From upper, above-mentioned various treatment process is both advantageous and disadvantageous, limits the application of this method to a certain extent, and therefore, how studying a kind of process for treating acidic waste water that is pratical and feasible, economical rationality is the task of top priority that current nonferrous metal mine faces.
Summary of the invention
Object of the present invention is exactly the problems referred to above existed for existing treatment process, and provide that a kind of technical process is simple, treatment effect good, processing efficiency is high, without slag field and filtering system, the nonferrous metal mine acid waste water immediate processing method of acid waste water zero release can be realized.
The present invention includes following steps:
(1), diversion: acid waste water sets up conduit pipe after collecting, and is drained in the equalizing tank near dressing-works by gravity flow or water pump;
(2), neutralizing treatment: the acid waste water in equalizing tank is passed into neutralization reaction pond, add alkaline reagents and regulate between waste water ph to 7 ~ 9 under stirring or aeration condition, carry out neutralizing treatment.
(3), for mineral processing production flow process: the treatment solution after neutralizing treatment and process slag feed in the ore mill in dressing-works by a certain percentage, with the common ore grinding of raw ore laggard enter ore dressing Production Flow Chart, or feed in mine tailing thickener, dense together with the Tailings Slurry that ore dressing produces, dense liquid returns mineral processing production flow process, and underflow carries out press filtration or directly enters in Tailings Dam.
In described step (1), the material of conduit pipe is stainless steel, PP, PVC or PE, and equalizing tank is done to prevent blending rotproofing.
In described step (2), alkaline reagents is unslaked lime, white lime, calcium carbonate, sodium carbonate or sodium hydroxide.
In described step (3), every day, the neutralizing treatment slag proportion fed in ore mill was no more than 1.5% of dressing-works day process ore amount.
Beneficial effect of the present invention:
The present invention is large according to the nonferrous metal mine acid waste water water yield, water quality is complicated, the features such as the quantity of slag is high are produced in process, to be directly used in Mineral Dressing Process flow process after acid waste water neutralizing treatment, have and mineral processing production index is not had an impact, even improve the effect of mineral processing production index, thus achieve the zero release of acid waste water, zero storage of slag, shortens the engineering construction phase, reduces engineering construction amount, reduces construction investment and running cost.
Embodiment
The present invention includes following steps:
(1), diversion: acid waste water sets up conduit pipe after collecting, and is drained in the equalizing tank near dressing-works by gravity flow or water pump;
(2), neutralizing treatment: the acid waste water in equalizing tank is passed into neutralization reaction pond, add alkaline reagents and regulate between waste water ph to 7 ~ 9 under stirring or aeration condition, carry out neutralizing treatment.
(3), for mineral processing production flow process: the treatment solution after neutralizing treatment and process slag feed in the ore mill in dressing-works by a certain percentage, with the common ore grinding of raw ore laggard enter ore dressing Production Flow Chart, or feed in mine tailing thickener, dense together with the Tailings Slurry that ore dressing produces, dense liquid returns mineral processing production flow process, and underflow carries out press filtration or directly enters in Tailings Dam.
In described step (1), the material of conduit pipe is stainless steel, PP, PVC or PE, and equalizing tank is done to prevent blending rotproofing.
In described step (2), alkaline reagents is unslaked lime, white lime, calcium carbonate, sodium carbonate or sodium hydroxide.
In described step (3), every day, the neutralizing treatment slag proportion fed in ore mill was no more than 1.5% of dressing-works day process ore amount.
Specific examples:
Certain nonferrous metal mine acid waste water, pH is 2.6, Cu be 263.51mg/L, Fe be 1235.47mg/L, Zn be 4.52mg/L, Ni be 6.64mg/L, As is 2.12mg/L, SO
4 2-for 15360.43mg/L, other heavy metal ion in addition containing trace.Get 5L waste water and be placed in steel basin, open and stir, wastewater pH is adjusted to 7.5 by the milk of lime adding mass concentration 10%, the mass percent of pressing 1.2% in after neutralizing treatment with slag mixes with raw ore, load ore grinding in ore mill, then carry out flotation test, the neutralizer after neutralizing treatment is all for flotation test, with do not add in and the clear water flotation test index of slag contrast, test-results is as shown in table 1.
Table 1 flotation experimental results
From the flotation comparative test result of table 1, the pulp water after neutralizing treatment be used for flotation, with do not add in compare with the flotation experimental results of neutralizer with slag, floatation indicators is not obviously distinguished.
Claims (4)
1. a nonferrous metal mine acid waste water immediate processing method, the method comprises the following steps:
(1), diversion: acid waste water sets up conduit pipe after collecting, and is drained in the equalizing tank near dressing-works by gravity flow or water pump;
(2), neutralizing treatment: the acid waste water in equalizing tank is passed into neutralization reaction pond, add alkaline reagents and regulate between waste water ph to 7 ~ 9 under stirring or aeration condition, carry out neutralizing treatment;
(3), for mineral processing production flow process: the treatment solution after neutralizing treatment and process slag feed in the ore mill in dressing-works by a certain percentage, with the common ore grinding of raw ore laggard enter ore dressing Production Flow Chart, or feed in mine tailing thickener, dense together with the Tailings Slurry that ore dressing produces, dense liquid returns mineral processing production flow process, and underflow carries out press filtration or directly enters in Tailings Dam.
2. a kind of nonferrous metal mine acid waste water immediate processing method according to claim 1, is characterized in that: in described step (1), and the material of conduit pipe is stainless steel, PP, PVC or PE, and equalizing tank is done to prevent blending rotproofing.
3. a kind of nonferrous metal mine acid waste water immediate processing method according to claim 1, it is characterized in that: in described step (2), alkaline reagents is unslaked lime, white lime, calcium carbonate, sodium carbonate or sodium hydroxide.
4. a kind of nonferrous metal mine acid waste water immediate processing method according to claim 1, it is characterized in that: in described step (3), every day, the neutralizing treatment slag proportion fed in ore mill was no more than 1.5% of dressing-works day process ore amount.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510308295.3A CN104944560A (en) | 2015-06-07 | 2015-06-07 | Quick non-ferrous metal mine acid wastewater treatment method |
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| CN201510308295.3A CN104944560A (en) | 2015-06-07 | 2015-06-07 | Quick non-ferrous metal mine acid wastewater treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268308A (en) * | 2015-11-23 | 2016-01-27 | 金川集团股份有限公司 | Device and method for recycling ore pulp desulfurization-neutralizing clear liquid |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100672080B1 (en) * | 2005-10-11 | 2007-01-19 | 광주과학기술원 | Acid mine waste water treatment system |
| CN102241446A (en) * | 2011-05-26 | 2011-11-16 | 武汉海德天物新材料有限公司 | Mine wastewater treatment method and device |
| KR20120074090A (en) * | 2010-12-27 | 2012-07-05 | 재단법인 포항산업과학연구원 | Method for treatment of mining waste water |
| CN102730885A (en) * | 2012-07-23 | 2012-10-17 | 中南大学 | Efficient flocculent precipitate purification method for polymetallic ore benefication wastewater |
| CN102786136A (en) * | 2012-08-08 | 2012-11-21 | 安徽六国化工股份有限公司 | Utilization method of acid-containing sewage in wet phosphoric acid process |
| CN102795728A (en) * | 2012-09-04 | 2012-11-28 | 中国环境科学研究院 | Method for treating heavy metal-containing acidic wastewater in nonferrous metal industry |
| CN103232106A (en) * | 2012-07-27 | 2013-08-07 | 紫金矿业集团股份有限公司 | Method for neutralizing copper-sulfur mine acidic wastewater |
| CN103420523A (en) * | 2013-09-04 | 2013-12-04 | 安徽新中远化工科技有限公司 | Technology for treating barren rock leaching water and other acid wastewater in low-grade pyrite |
| CN104211205A (en) * | 2014-08-14 | 2014-12-17 | 紫金矿业集团股份有限公司 | Harmless treatment method of mine low-concentration acidic wastewater |
-
2015
- 2015-06-07 CN CN201510308295.3A patent/CN104944560A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100672080B1 (en) * | 2005-10-11 | 2007-01-19 | 광주과학기술원 | Acid mine waste water treatment system |
| KR20120074090A (en) * | 2010-12-27 | 2012-07-05 | 재단법인 포항산업과학연구원 | Method for treatment of mining waste water |
| CN102241446A (en) * | 2011-05-26 | 2011-11-16 | 武汉海德天物新材料有限公司 | Mine wastewater treatment method and device |
| CN102730885A (en) * | 2012-07-23 | 2012-10-17 | 中南大学 | Efficient flocculent precipitate purification method for polymetallic ore benefication wastewater |
| CN103232106A (en) * | 2012-07-27 | 2013-08-07 | 紫金矿业集团股份有限公司 | Method for neutralizing copper-sulfur mine acidic wastewater |
| CN102786136A (en) * | 2012-08-08 | 2012-11-21 | 安徽六国化工股份有限公司 | Utilization method of acid-containing sewage in wet phosphoric acid process |
| CN102795728A (en) * | 2012-09-04 | 2012-11-28 | 中国环境科学研究院 | Method for treating heavy metal-containing acidic wastewater in nonferrous metal industry |
| CN103420523A (en) * | 2013-09-04 | 2013-12-04 | 安徽新中远化工科技有限公司 | Technology for treating barren rock leaching water and other acid wastewater in low-grade pyrite |
| CN104211205A (en) * | 2014-08-14 | 2014-12-17 | 紫金矿业集团股份有限公司 | Harmless treatment method of mine low-concentration acidic wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 宁树才: "马钢南山矿酸性废水的治理及改进", 《金属矿山》 * |
| 李雷: "治理酸性废水 改良生态环境", 《第二届全国冶金节水、污水处理技术研讨会论文集 》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268308A (en) * | 2015-11-23 | 2016-01-27 | 金川集团股份有限公司 | Device and method for recycling ore pulp desulfurization-neutralizing clear liquid |
| CN105268308B (en) * | 2015-11-23 | 2018-06-29 | 金川集团股份有限公司 | In a kind of ore pulp desulfurization and clear liquid reclamation set and method |
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Application publication date: 20150930 |