CN115417482A - Method for reducing secondary pollutants generated by degradation of collecting agent in sulfide mine wastewater - Google Patents
Method for reducing secondary pollutants generated by degradation of collecting agent in sulfide mine wastewater Download PDFInfo
- Publication number
- CN115417482A CN115417482A CN202211129379.7A CN202211129379A CN115417482A CN 115417482 A CN115417482 A CN 115417482A CN 202211129379 A CN202211129379 A CN 202211129379A CN 115417482 A CN115417482 A CN 115417482A
- Authority
- CN
- China
- Prior art keywords
- wastewater
- pyrite
- degradation
- sulfide
- collecting agent
- 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.)
- Granted
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 44
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 28
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 27
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 27
- 230000015556 catabolic process Effects 0.000 title claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 23
- 229910052683 pyrite Inorganic materials 0.000 claims abstract description 38
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000011028 pyrite Substances 0.000 claims abstract description 38
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 7
- 239000012991 xanthate Substances 0.000 claims description 7
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- -1 thiamine ester Chemical class 0.000 claims description 3
- JZRWCGZRTZMZEH-UHFFFAOYSA-N Thiamine Natural products CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 claims description 2
- 229960003495 thiamine Drugs 0.000 claims description 2
- 235000019157 thiamine Nutrition 0.000 claims description 2
- 239000011721 thiamine Substances 0.000 claims description 2
- 150000003573 thiols Chemical class 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 238000004065 wastewater treatment Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 23
- 229910052569 sulfide mineral Inorganic materials 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005188 flotation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 150000002978 peroxides Chemical class 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- ZCUFTCUMEDALHC-UHFFFAOYSA-N CC[K] Chemical compound CC[K] ZCUFTCUMEDALHC-UHFFFAOYSA-N 0.000 description 2
- QTANTQQOYSUMLC-UHFFFAOYSA-O Ethidium cation Chemical compound C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CC)=C1C1=CC=CC=C1 QTANTQQOYSUMLC-UHFFFAOYSA-O 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- PFRUBEOIWWEFOL-UHFFFAOYSA-N [N].[S] Chemical compound [N].[S] PFRUBEOIWWEFOL-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 231100000683 possible toxicity Toxicity 0.000 description 1
- OMKVZYFAGQKILB-UHFFFAOYSA-M potassium;butoxymethanedithioate Chemical compound [K+].CCCCOC([S-])=S OMKVZYFAGQKILB-UHFFFAOYSA-M 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002265 redox agent Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a method for reducing secondary pollutants generated by degradation of a collecting agent in sulfide mine wastewater. The method comprises the following steps: crushing and grinding the pyrite, adding the obtained pyrite particles into the wastewater, adjusting the pH value of the wastewater to 7.0-12.0, and fully contacting and reacting for a period of time, so that the degradation of the sulfide collecting agent in the wastewater is accelerated, and the secondary pollutants generated in the wastewater are reduced. According to the method, the pyrite is innovatively used as a wastewater treatment material, and the pH value of a reaction system is controlled, so that the degradation of the sulfide collecting agent in the wastewater is accelerated, and the secondary pollutants generated in the degradation process are obviously reduced.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a method for reducing secondary pollutants generated by degradation of a collecting agent in sulfide mine wastewater.
Background
Non-ferrous metal minerals usually exist in the form of multi-metal sulfide ores, and before non-ferrous metal is extracted by a wet method or a fire method, the target sulfide minerals are usually required to be subjected to mineral separation and enrichment so as to be separated from other sulfide minerals or gangue. The surface properties of different sulfide minerals are different, so that the sulfide minerals can be separated by adopting a flotation method. The beneficiation wastewater generated in the flotation process is one of the main sources of sulfide mine wastewater, and contains a large amount of residual beneficiation reagents, particularly sulfide collecting agents, if the beneficiation wastewater is discharged into the nature, not only is water resource waste caused, but also a series of ecological environment problems are generated; if the sulfide ore is not treated and directly recycled in the beneficiation process, the flotation recovery or flotation separation of sulfide minerals can be influenced, and the flotation indexes are adversely affected.
The current methods for treating the collecting agent in the sulphide ore mine wastewater comprise a physical method, a chemical method and a biological method, wherein the chemical method is mainly used. The method is characterized in that the sulfide ore collecting agent in the wastewater is degraded under the action of hydrogen ions, redox agents or oxygen by adding acid, strong oxidant or aeration by utilizing the instability and chemical reaction activity of the sulfide ore collecting agent. In the chemical method treatment process, secondary pollutants such as carbon disulfide and the like are usually generated by the degradation of sulfide ore collecting agents in the wastewater, if the secondary pollutants are released into the atmospheric environment, the secondary pollutants have potential toxicity risks to the peripheral organisms in a mining area, and the secondary environmental problems such as acid rain and the like can be caused by the further decomposition of the secondary pollutants. The existing chemical method for treating the sulfide mine wastewater faces the problems of high cost on one hand and secondary pollutant release on the other hand. Therefore, the development of a sulfide mine wastewater treatment technology which has the advantages of low cost and good effect and can avoid the formation of secondary pollutants in the degradation process of the collecting agent as much as possible is a long-term demand in the field of mine industrial wastewater treatment.
Pyrite is a common iron-containing sulfide mineral, and in the existing method for treating wastewater by using pyrite, pyrite must be used together with peroxide such as persulfate and hydrogen peroxide or microorganisms. When the catalyst is combined with peroxide for use, ferrous ions added in Fenton reaction are replaced, the function of the catalyst is exerted, the essence of the catalyst is still an advanced oxidative degradation method, and the peroxide is mainly consumed, so the process is relatively complex, and the peroxide used in combination has high cost, violent reaction and complex secondary product; when the microbial composite fertilizer is used in combination with microorganisms, the microorganisms are used for oxidizing pyrite to produce acid to reduce the pH value of wastewater, the essence still belongs to an acidification degradation method, the microorganism culture is difficult, the conditions are limited, and a large amount of secondary pollutants are generated similarly to a direct acidification method. At present, no method for treating mine wastewater by using single pyrite exists, and no treatment method specially aiming at secondary pollutants generated by degradation of residual medicaments in sulphide ore mine wastewater exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for reducing secondary pollutants generated by degrading mine wastewater containing a sulfide ore collecting agent, which creatively takes pyrite as a wastewater treatment material, utilizes active oxygen and other substances generated in the self-oxidation process of the pyrite to react with residual reagents in the mine wastewater so as to promote the degradation of the pyrite collecting agent, accelerates the degradation of the sulfide ore collecting agent in the wastewater, and simultaneously controls the pH of a reaction system to inhibit the natural degradation of the flotation reagents so as to obviously reduce the secondary pollutants generated in the degradation process.
The method for reducing the secondary pollutants generated by degrading the collecting agent in the sulfide mine wastewater comprises the steps of crushing and grinding pyrite, adding the obtained pyrite particles into the wastewater, adjusting the pH value of the wastewater to 7.0-12.0, and fully contacting and reacting for a period of time, so that the degradation of the sulfide mine collecting agent in the wastewater is accelerated, and the secondary pollutants generated in the wastewater are reduced.
Further, the pyrite is natural pyrite or artificially synthesized pyrite.
Further, the sulphide ore collector comprises 1 or more of xanthate collectors containing carbon-sulfur bonds, sulfur-nitrogen collectors, thiamine ester collectors, thiol collectors and derivatives thereof.
Further, the crushing and grinding of the pyrite are realized by grinding the pyrite until the granularity reaches below 1 mm.
Compared with the prior art, the invention has the beneficial effects that:
the pyrite is used as the sulfide mine wastewater treatment material, the source is wide, the price is low, and for most nonferrous metal sulfide mines, the pyrite is usually valuable sulfide mineral symbiotic mineral, is a low-value mineral separation product, can be obtained from local resources, does not need to be purchased, has no loss basically in the using process, and can be continuously sold and utilized after being used. Compared with traditional chemical treatment methods such as a natural degradation method, an acidification degradation method, an advanced oxidation method and the like, the method can obviously improve the degradation rate of the sulfide ore collecting agent in the wastewater, shorten the degradation period, avoid a special field, reduce the cost, greatly reduce the generation amount of secondary pollutants, is a green and efficient method, and is suitable for large-scale popularization and application.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1
The wastewater solution contains 165mg/L of sulfide mineral collector ethyl potassium xanthate, and 2.0g/L of pyrite with the granularity of-0.038 mm is added. Adjusting the pH value of the wastewater to 7.2 +/-0.1, standing for 48 hours at room temperature until the xanthate degradation rate reaches 99.5%, and the yield of carbon disulfide is 4.49%. Compared with the method without adding pyrite, the production of the secondary pollutant, namely carbon disulfide, is reduced by 88.6%. The amount of carbon disulphide production is reduced by 49.19% compared to the condition where pyrite is added but the pH is 4.5 ± 0.1.
Example 2
The wastewater solution contains 161mg/L of sulfide mineral collector ethyl potassium xanthate, and 2.0g/L of pyrite with the granularity of-0.038 mm is added. Adjusting the pH value of the wastewater to 8.5 +/-0.1, standing for 48 hours at room temperature until the xanthate degradation rate reaches 99.3 percent and the yield of carbon disulfide is 3.85 percent. Compared with the method without adding pyrite, the production of the secondary pollutant, namely carbon disulfide, is reduced by 89.2%. The amount of carbon disulfide production was reduced by 50.08% compared to the condition where pyrite was added but the pH was 4.5 ± 0.1.
Example 3
The wastewater solution contains 102mg/L of sulfide mineral collector butyl potassium xanthate, pyrite with the granularity of-0.09 mm is added in the wastewater solution, the pH value of the wastewater is adjusted to 8.0 +/-0.1, the degradation rate of the xanthate reaches 99.2 percent and the yield of carbon disulfide reaches 6.01 percent after stirring for 48 hours at room temperature. Compared with the method without adding pyrite, the production of the secondary pollutant, namely carbon disulfide, is reduced by 85.2%. The reduction in carbon disulfide production was 16.29% compared to the condition where pyrite was added but the pH was 6.2 ± 0.1.
Example 4
The wastewater solution contains 141mg/L of sulfide ore collecting agent ethidium and sulphur, 10.0g/L of pyrite with the granularity of-0.074 mm is added, the pH value of the wastewater is adjusted to 9.5 +/-0.2, the degradation rate of ethidium and sulphur reaches 98.1 percent and the yield of carbon disulfide is 5.11 percent after stirring for 48 hours at room temperature. Compared with the method without adding pyrite, the production of the secondary pollutant, namely carbon disulfide, is reduced by 84.5 percent.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.
Claims (5)
1. A method for reducing secondary pollutants generated by degradation of a collecting agent in sulfide mine wastewater is characterized by crushing and grinding pyrite, adding obtained pyrite particles into the wastewater, adjusting the pH value of the wastewater to 7.0-12.0, and fully contacting and reacting for a period of time, so that the degradation of the sulfide mine collecting agent in the wastewater is accelerated, and the secondary pollutants generated in the wastewater are reduced.
2. The method of claim 1, wherein the pyrite is natural pyrite or synthetic pyrite.
3. A method according to claim 1, wherein the sulphide ore collector comprises 1 or more of xanthate collectors, sulphur and nitrogen collectors, thiamine ester collectors, thiol collectors and derivatives thereof containing carbon-sulphur bonds.
4. The method for reducing the generation of secondary pollutants due to the degradation of the collecting agent in the sulfide ore mine wastewater according to claim 1, wherein the crushing and grinding of the pyrite are to grind the pyrite to a particle size of less than 1 mm.
5. The method for reducing the secondary pollutants generated by the degradation of the collecting agent in the sulfide mine wastewater according to claim 1, characterized in that the pH value of the wastewater is kept between 7.0 and 12.0 by using alkaline substances to adjust the pH value of the wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129379.7A CN115417482B (en) | 2022-09-16 | 2022-09-16 | Method for reducing secondary pollutants generated by degradation of collecting agent in sulfide mine wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129379.7A CN115417482B (en) | 2022-09-16 | 2022-09-16 | Method for reducing secondary pollutants generated by degradation of collecting agent in sulfide mine wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115417482A true CN115417482A (en) | 2022-12-02 |
| CN115417482B CN115417482B (en) | 2023-11-03 |
Family
ID=84204845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211129379.7A Active CN115417482B (en) | 2022-09-16 | 2022-09-16 | Method for reducing secondary pollutants generated by degradation of collecting agent in sulfide mine wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115417482B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584097A (en) * | 1984-08-17 | 1986-04-22 | American Cyanamid Company | Neutral hydrocarboxycarbonyl thionocarbamate sulfide collectors |
| US5853571A (en) * | 1996-06-17 | 1998-12-29 | Harris; Guy H. | Pyrite depressant useful in flotation separation |
| JP2007209824A (en) * | 2005-10-04 | 2007-08-23 | Dowa Holdings Co Ltd | Method for cleaning contaminated soil or contaminated groundwater |
| CN101745197A (en) * | 2009-10-20 | 2010-06-23 | 同济大学 | Method of treating refractory pollutants through catalyzing H2O2 oxidation by pyrite cinder |
| CN107487952A (en) * | 2017-09-22 | 2017-12-19 | 中南大学 | A kind of combination treatment method of the residual beneficiation wastewater containing xanthate |
| CN110143640A (en) * | 2019-05-09 | 2019-08-20 | 山东理工大学 | A kind of method of butyl xanthate in photocatalytic oxidation degradation beneficiation wastewater of sulphide ore |
| CN111661963A (en) * | 2020-05-20 | 2020-09-15 | 北京科技大学 | Device and method for treating non-ferrous metal ore dressing wastewater by ozone coupling ultraviolet irradiation |
| CN112340831A (en) * | 2020-11-16 | 2021-02-09 | 郑州大学 | Device and method for rapidly degrading organic pollutants in wastewater |
-
2022
- 2022-09-16 CN CN202211129379.7A patent/CN115417482B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584097A (en) * | 1984-08-17 | 1986-04-22 | American Cyanamid Company | Neutral hydrocarboxycarbonyl thionocarbamate sulfide collectors |
| US5853571A (en) * | 1996-06-17 | 1998-12-29 | Harris; Guy H. | Pyrite depressant useful in flotation separation |
| JP2007209824A (en) * | 2005-10-04 | 2007-08-23 | Dowa Holdings Co Ltd | Method for cleaning contaminated soil or contaminated groundwater |
| CN101745197A (en) * | 2009-10-20 | 2010-06-23 | 同济大学 | Method of treating refractory pollutants through catalyzing H2O2 oxidation by pyrite cinder |
| CN107487952A (en) * | 2017-09-22 | 2017-12-19 | 中南大学 | A kind of combination treatment method of the residual beneficiation wastewater containing xanthate |
| CN110143640A (en) * | 2019-05-09 | 2019-08-20 | 山东理工大学 | A kind of method of butyl xanthate in photocatalytic oxidation degradation beneficiation wastewater of sulphide ore |
| CN111661963A (en) * | 2020-05-20 | 2020-09-15 | 北京科技大学 | Device and method for treating non-ferrous metal ore dressing wastewater by ozone coupling ultraviolet irradiation |
| CN112340831A (en) * | 2020-11-16 | 2021-02-09 | 郑州大学 | Device and method for rapidly degrading organic pollutants in wastewater |
Non-Patent Citations (2)
| Title |
|---|
| YONGQING ZHANG，HIEN PHUONG TRAN，IMTYAZ HUSSAIN，YANQING ZHONG，SHAOBIN HUANG: "Degradation of p-chloroaniline by pyrite in aqueous solutions", CHEMICAL ENGINEERING JOURNAL, vol. 279, pages 396 - 401 * |
| 蔺艺莹: "黄铁矿-溶解氧体系碱性条件下催化氧化苯胺的研究", 中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑, no. 02, pages 38 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115417482B (en) | 2023-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0880475B1 (en) | Process for the treatment of water containing heavy metal ions | |
| CN101195859A (en) | Technique for processing low concentration heavy metal sulfate liquor with microorganism method | |
| GB2606659A (en) | Method and system for biologically treating acidic mine wastewater while recovering iron ion | |
| Johnson et al. | The microbiology of acid mine drainage: genesis and biotreatment | |
| Kim et al. | Removal of hydrogen sulfide by Chlorobium thiosulfatophilum in immobilized-cell and sulfur-settling free-cell recycle reactors | |
| CN110052099A (en) | A kind of method of sulfur-containing smoke gas biochemical de-sulfur and sulphur recovery | |
| CN104370411A (en) | Method for removing heavy metals from industrial wastewater | |
| CN112250197B (en) | Method for treating copper-containing chromium-containing industrial wastewater by using bacterial detoxification | |
| CN106957078B (en) | Method for degrading residual agent in beneficiation wastewater by photocatalytic semiconductor sulfide ore based on iron-oxidizing bacteria | |
| CN115417482A (en) | Method for reducing secondary pollutants generated by degradation of collecting agent in sulfide mine wastewater | |
| US20070172935A1 (en) | Tank Bioleaching Process | |
| CN115094245B (en) | Method for synchronously recycling cobalt and iron from low-cobalt multi-metal sulfide ore | |
| CN115417483B (en) | Method for treating sulfide ore mine wastewater by using pyrite | |
| CN114685000B (en) | Process method for treating high-sulfate organic wastewater | |
| Tuovinen et al. | Nitrogen requirement of iron-oxidizing thiobacilli for acidic ferric sulfate regeneration | |
| Hein et al. | A developing novel alternative bio-oxidation approach to treat low-grade refractory sulfide ores at circumneutral pH | |
| Lv et al. | Review on the Bio-oxidation of Pyrite: Implications for the Mining Industry | |
| AU664856B2 (en) | Process for the microbial oxidation of sulphidic wastes | |
| CN110724649B (en) | Efficient bioleaching composite bacterial system and application thereof in sludge dechromization process | |
| CN115552047A (en) | Oxidative bioleaching of base metals | |
| Kucmanová et al. | Preliminary bioleaching experiment of e-waste | |
| CN108660314B (en) | The method of one-step method recycling metal | |
| Wei | Research on Sulfide Biological Extraction Technology | |
| Li et al. | A Bioreactor Culture of Mesophilic Consortia Maintains the Stability of Microbial Community and Accelerates the Regeneration of Ferric Iron | |
| KR100381132B1 (en) | An Anaerobic Mining Microorganism Agent, and A Method and Process for Recovering Precious Metals Using the Agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |