CN103265142A - Method for treating acidic mine waste water - Google Patents
Method for treating acidic mine waste water Download PDFInfo
- Publication number
- CN103265142A CN103265142A CN2013101450167A CN201310145016A CN103265142A CN 103265142 A CN103265142 A CN 103265142A CN 2013101450167 A CN2013101450167 A CN 2013101450167A CN 201310145016 A CN201310145016 A CN 201310145016A CN 103265142 A CN103265142 A CN 103265142A
- Authority
- CN
- China
- Prior art keywords
- waste water
- mine
- acid waste
- reducing bacteria
- heavy metal
- 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
Links
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a method for treating acidic mine waste water and relates to the field of treatment on acidic mine waste water. The method comprises that before acidic mine waste water is treated by immobilized sulfate-reducing bacteria, the acidic mine waste water is pretreated by a Fe-C micro-electrolysis reaction layer so that the problem that immobilized sulfate-reducing bacteria are limited by a heavy metal concentration and a pH value is solved; various heavy metal ions and sulfate ions in high-concentration acidic heavy metal waste water are removed effectively; and a pH value of product water is controlled in a certain range. The method adopts two filtration processes, realizes filtration of heavy-pollution metal ions in the equipment and avoids secondary pollution of draining.
Description
Technical field
The present invention relates to acid waste water of mine and administer the field, relate in particular to the method for the acid waste water of mine of a kind of efficient processing.
Background technology
The pH of acid mine water is very low usually, is rich in SO
4 2-Ion and Fe
3+Ion easily leaches the poisonous element in the associated mineral, as lead, arsenic, cadmium, copper etc., mining industry production, groundwater resource and mining area ecological environment is had serious harm.
Traditional underground water recovery technique is to extract treatment technology out, but running cost is high, therefore can effectively remove in the underground water all kinds of pollution substance underground water in-situ remediation methods is used widely, this technology is mainly to handling organic chloride, non-water soluble substance, heavy metal, the underground water that inorganic salt etc. pollute is very effective, mainly utilize the sulfate reduction Cordycepps to remove the characteristic of heavy metal ions in wastewater, but heavy metal concentration, the acid mine water pH value is very big to the influence of sulphate reducing bacteria, work as heavy metal concentration, the pH value surpasses one and delimits, sulphate reducing bacteria almost can not be grown, simultaneously, it is longer that sulphate reducing bacteria is handled the heavy metal cycle, easily cause secondary pollution to influence the range of application of this method greatly.
Summary of the invention
Technical problem to be solved of the present invention provide a kind of overcome in the existing method have secondary pollution, be subjected to heavy metal concentration, the method for the acid waste water of mine of efficient processing of restriction such as pH.
In order to realize purpose of the present invention, a kind of method of handling acid waste water of mine provided by the invention comprises the steps:
1) acid waste water of mine is injected water-in;
2) acid waste water of mine passes through the waterbearing stratum;
3) by containing the responding layer of iron filings and carbon granule;
4) by first filtering layer;
5) handle by the waterbearing stratum;
6) by the responding layer of immobilization sulphate reducing bacteria, the reaction times is 12-48h, temperature of reaction 25-40 ℃;
7) by second filtering layer;
8) enter water outlet.
Preferably, in the described responding layer that contains iron filings and carbon granule, the mass ratio of iron and carbon is 1: 1-5: 1.
Preferably, in the described responding layer that contains iron filings and carbon granule in the responding layer of iron carbon and immobilization sulphate reducing bacteria sulphate reducing bacteria ratio (g: be 1 ml): 5-3: 5.
Preferably, the pH value of described acid waste water of mine is 3-6.
Beneficial effect of the present invention is: acid waste water of mine is at first by the waterbearing stratum dilution, then by containing the reactor of iron-carbon micro-electrolysis reaction medium, with the SO in the iron-carbon micro-electrolysis effect removal waste water
4 2-And heavy metal ion, significantly improve the pH value of acid waste water, for follow-up sulphate reducing bacteria provides suitable pH value and Fe
2+, and Fe
2+Can promote the sulphate reducing bacteria growth metabolism, water outlet after handling is fed the waterbearing stratum that is filled with certain alkaline matter, can play the purpose of retaining and the further PH of raising, the water outlet after will handling again is by being filled with the reactor of immobilization sulphate reducing bacteria packing layer, with further removal SO
4 2-With heavy metal ion and control Fe
2+In the finite concentration scope, can reach treatment effect preferably, can avoid secondary pollution simultaneously, obvious processing effect, simple in structure.
Description of drawings
Fig. 1 is a kind of process flow sheet of handling the method for acid waste water of mine of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
Referring to Fig. 1, a kind of method of handling acid waste water of mine, the acid waste water of mine that with PH is 3-6 earlier injects water-in, acid waste water of mine at first passes through the waterbearing stratum, ionic concn and PH to acid mine play certain diluting effect, again by containing the responding layer of iron filings and carbon granule, the mass ratio of iron and carbon is 1 in this responding layer: 1-5: 1, solution after will handling through a last responding layer is removed unreacted iron carbon granule and reaction residual in the solution by first filtering layer, again solution is handled by the waterbearing stratum, be filled with certain density sodium bicarbonate in the waterbearing stratum, can play the purpose of retaining and the further PH of raising, by the responding layer of immobilization sulphate reducing bacteria, the reaction times is 12-48h, temperature of reaction 25-40 ℃, solution after will handling through the responding layer of immobilization sulphate reducing bacteria is by second filtering layer, the heavy metal ion that filtration is reduced is effectively removed the acid heavy metal ion of high density, enters water outlet and discharges.Wherein in the responding layer of iron carbon and immobilization sulphate reducing bacteria sulphate reducing bacteria ratio (g: be 1 ml): 5-3: 5.
Iron-carbon micro-electrolysis is when being immersed in iron filings and carbon granule in the acid waste water, because the difference in Electrode Potential between iron and the carbon can form numerous little galvanic cell in the waste water.These trickle batteries are to become anode with the low iron of current potential, and the carbon that current potential is high is done negative electrode, and electrochemical reaction takes place in containing the aqueous solution of acidic electrolyte bath.The result of reaction is that iron is subjected to corroding the iron ion that becomes divalence and enters solution.Because iron ion has coagulation, there is a natural attraction between the sexes with the particulate of faint negative charge in it and the pollutent, forms more stable throw out and remove, and electrochemical reaction takes place under acid aerobic condition, and its reaction process is as follows:
Anode (Fe): Fe
-2e → Fe
2+,
Negative electrode (C): 2H
++ 2e → 2[H] → H
2,
In the reaction, generation the Fe of status nascendi
2+With atom H, they have high chemically reactive, can change many organic structures and characteristic in the waste water, make effects such as organism generation chain rupture, open loop.
Sulphate reducing bacteria (SRB) is a kind of microorganism of anaerobism, extensively is present in the anaerobic environments such as soil, seawater, river, underground pipeline and oil gas well.Liquid culture SRB, at first get rid of the air in the substratum, the method that can adopt the air in the high pure nitrogen stripping substratum and make the substratum heating inserts an amount of bacterium liquid then, above substratum, cover the went out whiteruss of bacterium of one deck, under the temperature about 35 ℃, leave standstill cultivation.Fixation support adopts polyurethane foam.
Pass through aforesaid method, before handling acid waste water of mine, the immobilization sulphate reducing bacteria does pre-treatment by the responding layer of iron-carbon micro-electrolysis reaction, avoided sulphate reducing bacteria to be subjected to the deficiency of heavy metal concentration and pH value restriction, can not only effectively remove various heavy metal ion and sulfate ion in the acid heavy metal waste water of high density, and can be with water outlet PH control in certain limit, adopt twice simultaneously filtration treatment in the method, with existing the metal ion of heavily contaminated to filter in processing unit, avoided the secondary pollution of draining.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change in being equal to scope of the present invention all be included in the invention.
Claims (4)
1. a method of handling acid waste water of mine comprises the steps:
1) acid waste water of mine is injected water-in;
2) acid waste water of mine passes through the waterbearing stratum;
3) by containing the responding layer of iron filings and carbon granule;
4) by first filtering layer;
5) handle by the waterbearing stratum again;
6) by the responding layer of immobilization sulphate reducing bacteria, the reaction times is 12-48h, temperature of reaction 25-40 ℃;
7) by second filtering layer;
8) enter water outlet.
2. a kind of method of handling acid waste water of mine according to claim 1 is characterized in that: in the described responding layer that contains iron filings and carbon granule, the mass ratio of iron and carbon is 1: 1-5: 1.
3. a kind of method of handling acid waste water of mine according to claim 1 is characterized in that: in the described responding layer that contains iron filings and carbon granule in the responding layer of iron carbon and immobilization sulphate reducing bacteria sulphate reducing bacteria ratio (g: be 1 ml): 5-3: 5.
4. a kind of method of handling acid waste water of mine according to claim 1, it is characterized in that: the pH value of described acid waste water of mine is 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101450167A CN103265142A (en) | 2013-04-22 | 2013-04-22 | Method for treating acidic mine waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101450167A CN103265142A (en) | 2013-04-22 | 2013-04-22 | Method for treating acidic mine waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103265142A true CN103265142A (en) | 2013-08-28 |
Family
ID=49008821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101450167A Pending CN103265142A (en) | 2013-04-22 | 2013-04-22 | Method for treating acidic mine waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103265142A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254139A (en) * | 2015-11-23 | 2016-01-20 | 刘树芹 | Treating method for high-salinity pharmaceutical wastewater |
| CN107055934A (en) * | 2016-12-28 | 2017-08-18 | 云南昆钢水净化科技有限公司 | A kind of method of utilization SRB bacterial treatment acidic mine waste waters |
| CN107226592A (en) * | 2017-07-24 | 2017-10-03 | 上海问鼎环保科技有限公司 | A kind of lead salt produces the handling process of waste water |
| CN111362425A (en) * | 2020-04-13 | 2020-07-03 | 辽宁工程技术大学 | Method for treating acid mine wastewater by using micro-electrolysis-enhanced sulfate reducing bacteria and micro-electrolysis bioreactor |
| CN112174440A (en) * | 2020-10-19 | 2021-01-05 | 张家港市五湖新材料技术开发有限公司 | Heavy metal wastewater treatment process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020014455A1 (en) * | 2000-07-03 | 2002-02-07 | Firma Biomedy Ag | Method for purifying contaminated underground water |
| CN202265478U (en) * | 2011-04-22 | 2012-06-06 | 周瑞兴 | Reactor for treating small amount of subsequent heavy metals in metallurgical wastewater |
| CN102951752A (en) * | 2012-11-12 | 2013-03-06 | 贵州师范大学 | Filter-pressing action-based acid mine drainage treatment system and treatment method |
-
2013
- 2013-04-22 CN CN2013101450167A patent/CN103265142A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020014455A1 (en) * | 2000-07-03 | 2002-02-07 | Firma Biomedy Ag | Method for purifying contaminated underground water |
| CN202265478U (en) * | 2011-04-22 | 2012-06-06 | 周瑞兴 | Reactor for treating small amount of subsequent heavy metals in metallurgical wastewater |
| CN102951752A (en) * | 2012-11-12 | 2013-03-06 | 贵州师范大学 | Filter-pressing action-based acid mine drainage treatment system and treatment method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254139A (en) * | 2015-11-23 | 2016-01-20 | 刘树芹 | Treating method for high-salinity pharmaceutical wastewater |
| CN107055934A (en) * | 2016-12-28 | 2017-08-18 | 云南昆钢水净化科技有限公司 | A kind of method of utilization SRB bacterial treatment acidic mine waste waters |
| CN107226592A (en) * | 2017-07-24 | 2017-10-03 | 上海问鼎环保科技有限公司 | A kind of lead salt produces the handling process of waste water |
| CN111362425A (en) * | 2020-04-13 | 2020-07-03 | 辽宁工程技术大学 | Method for treating acid mine wastewater by using micro-electrolysis-enhanced sulfate reducing bacteria and micro-electrolysis bioreactor |
| CN111362425B (en) * | 2020-04-13 | 2022-06-03 | 辽宁工程技术大学 | Method for treating acid mine wastewater by using micro-electrolysis-enhanced sulfate reducing bacteria and micro-electrolysis bioreactor |
| CN112174440A (en) * | 2020-10-19 | 2021-01-05 | 张家港市五湖新材料技术开发有限公司 | Heavy metal wastewater treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bai et al. | Bioremediation of copper-containing wastewater by sulfate reducing bacteria coupled with iron | |
| Bai et al. | Treatment of acid mine drainage by sulfate reducing bacteria with iron in bench scale runs | |
| Zhang et al. | Removal of ammonia nitrogen from wastewater using an aerobic cathode microbial fuel cell | |
| CN103265141B (en) | Acidic mine waste water treatment system and use method thereof | |
| CN108911102B (en) | Method for recycling uranium in uranium-containing wastewater and underground water through efficient electrochemical reduction and enrichment | |
| CN104478160B (en) | Selecting and purchasing ore deposit contains the method for organism and the process of heavy metal wastewater thereby synergistic oxidation | |
| Gao et al. | A pilot study on the regeneration of ferrous chelate complex in NOx scrubber solution by a biofilm electrode reactor | |
| CN103265142A (en) | Method for treating acidic mine waste water | |
| CN104129850A (en) | In-situ remediation method for nitrate pollutions in groundwater | |
| CN104909526A (en) | Device for removing heavy metals in sludge by using electro-dynamic method and synchronously and deeply dehydrating sludge | |
| Bai et al. | Treatment of copper wastewater by sulfate reducing bacteria in the presence of zero valent iron | |
| CN104341055B (en) | A method of removing nitrates from water by utilization of a zero-valent iron/oxidizing agent/zeolite synergetic system | |
| CN105161744B (en) | A kind of biological-cathode and preparation method thereof, microorganism micro cell, the device for handling integral treatment device | |
| CN104496092B (en) | The method for processing organic wastewater that a kind of heavy metal adsorption saturated activity charcoal is recycled | |
| CN103112975A (en) | Treatment method for high-salt, high-nitrogen and high-concentration organic waste water | |
| CN104450558A (en) | Enrichment culturing method of seawater candidatus scalindua | |
| CN103359897B (en) | Process and device for treating high-concentration sulfate radical textile-dyeing wastewater | |
| CN111362425B (en) | Method for treating acid mine wastewater by using micro-electrolysis-enhanced sulfate reducing bacteria and micro-electrolysis bioreactor | |
| CN102329054B (en) | Mercury-containing wastewater treatment method based on chemical precipitation method | |
| CN114634281B (en) | Device and method for restoring polluted underground water by combining excess sludge fermentation with permeable reaction wall | |
| Yong | New technology for wastewater treatment | |
| CN102019169B (en) | Regeneration method of activated carbon in organosilicon wastewater treatment | |
| CN103304113A (en) | Sludge treatment method | |
| CN211734103U (en) | Copper ammonia complex effluent disposal system | |
| Yuzir et al. | Addition of ferric chloride in anaerobic digesters to enhance sulphide removal and methanogenesis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130828 |