CN104261624A - Method for treating cyanide-containing wastewater in gold cyaniding enterprises - Google Patents
Method for treating cyanide-containing wastewater in gold cyaniding enterprises Download PDFInfo
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- CN104261624A CN104261624A CN201410514179.2A CN201410514179A CN104261624A CN 104261624 A CN104261624 A CN 104261624A CN 201410514179 A CN201410514179 A CN 201410514179A CN 104261624 A CN104261624 A CN 104261624A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- 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
- C02F2101/18—Cyanides
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- 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
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
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- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for treating cyanide-containing wastewater in gold cyaniding enterprises. The method comprises the four steps of electrochemical treatment, chemical oxidation treatment, coagulating sedimentation treatment and biological activated carbon treatment. When the cyanide-containing wastewater is treated, cyanide is electrolyzed by adopting the electrochemical treatment method; coagulating sedimentation is carried out by adding a coagulating agent, and heavy metal pollutants in wastewater can be removed; precipitated wastewater is oxidized by adding a chemical reagent; and finally, pollutants which are hardly removed from wastewater by a chemical method are removed by adopting a biological and physical adsorption method through a biological activated carbon treatment system. According to the method, the four steps are combined together according to the characteristics of complex and hardly treated pollutants in cyanide-containing wastewater of gold production enterprises, and are synergized to carry out deep treatment on the cyanide-containing wastewater of gold production enterprises. The method has the advantages of good treatment effect, high treatment efficiency, stable system operation and simple process flow, and can easily realize industrial application, and the treated wastewater can be returned to a production process flow to be used as reclaimed water or discharged with standard level.
Description
Technical field
The present invention relates to field of Environment Protection Pollutant Treatment method, particularly the treatment process of a kind of gold cyaniding enterprise cyanide wastewater.
Background technology
Gold cyaniding enterprise in the ore dressing process of gold due to use Cyanide Process, a large amount of cyanide wastewater can be produced, this part cyanide wastewater is not only containing a certain amount of hypertoxic prussiate, but also contain the heavy metal ion of thiocyanate-and copper, zinc, lead and so on, if can not get effective process, great environmental protection hidden danger will be produced.At present, the method of conventional Treatment of Cyanide-containing Wastewater has acidifying absorption method, Pomolio-Celdecor process, Yin Kefa, sulfurous gas method etc. both at home and abroad, although adopt acidifying absorption method can reclaim a certain amount of prussiate, but because recovery of cyanide is not thorough, the remaining a certain amount of prussiate of meeting in waste water, thiocyanate ion and some heavy metal ion are not all effectively removed simultaneously.Chlorine residue that can be remaining a large amount of after Pomolio-Celdecor process process, produces ClCN product, causes secondary pollution problem, and the heavy metal ion such as copper, zinc, lead simultaneously in waste water fails effectively to be administered.Although Yin Kefa and sulfurous gas method can make cyanid up to standard, the thiocyanate-in waste water fails to be processed, and in addition, the waste residue produced in process heavy metal process is also more, easily causes secondary pollution.Therefore, also still lacking more satisfactory method in cyanide wastewater process, if resolve this problem, will important meaning had to the Sustainable development of China's gold industry and the environment protection of gold mine.
Summary of the invention
Object of the present invention is exactly the problems referred to above existed for existing treatment process, and provides the Treatment of cyanogen-contained wastewater that a kind of technical process is simple, treatment effect good, processing efficiency is high, stable.The present invention is according to the feature containing multiple pollutants such as prussiate, thiocyanate-and heavy metals in gold mine cyanide wastewater, electrochemical process for treating is adopted first prussiate to be carried out electrolysis treatment, then coagulating sedimentation is carried out by adding coagulated agent, remove the heavy metal contaminants in waste water, waste water after precipitation adds chemical reagent and carries out oxide treatment, and pollutent chemical process in waste water being difficult to remove finally by biological activated carbon treatment system is got rid of by method that is biological and physical adsorption.Concrete technology step is as follows:
(1) adopt acid-base reagent to regulate the pH value of waste water between 8 ~ 11, add that to add massfraction be 5% ~ 50% sodium chloride solution, make waste water homogeneous;
(2) waste water after regulating enters into electrolyzer, and under the effect of direct supply regulating YIN and YANG battery lead plate, carry out electrochemical treatment, the treatment time is 30min ~ 360min;
(3) waste water after electrochemical treatment is moved in steel basin, under whipped state, add oxygenant and catalyzer carries out oxide treatment, treatment time 10min ~ 60min;
(4) waste water after oxide treatment adds flocculation agent successively under whipped state and flocculation agent carries out coagulating sedimentation, and after coagulation, waste water enters settling tank and staticly settles 15min ~ 120min;
(5) supernatant liquor after precipitation enters biological activated carbon treatment system, and under the condition of active carbon filler, biofilm bacterial classification and air aeration, carry out biological activated carbon process, the treatment time is 30min ~ 120min;
(6) supernatant liquor after process returns in the technological process of production or qualified discharge.
In described step (1), sour reagent is sulfuric acid or hydrochloric acid, and alkali reagent is sodium hydroxide solution or milk of lime.
In described step (2), the positive plate in electrolyzer is graphite cake, iron plate or the metal sheet scribbling metal oxide, and negative plate is iron plate, stainless steel plate, other metal or alloy plates.
In described step (3), stirring linear velocity is 0.01m/s ~ 10m/s, and oxygenant is hydrogen peroxide solution, and catalyzer is copper-bath.
In described step (4), stirring linear velocity is 0.01m/s ~ 10m/s, and flocculation agent is the polymer inorganic salt solution adding massfraction 10% ~ 30%, and flocculation agent is the polyacrylamide solution of massfraction 0.3 ‰ ~ 0.5 ‰.
In described step (5), biological activated carbon treatment system is upflowing or downflow system reaction tank, water-distributing device and aerating apparatus is provided with at the bottom of pond, it is active carbon filler layer above aerating apparatus, gac is coconut husk charcoal or ature of coal charcoal, dress charcoal amount accounts for 1/5 ~ 4/5 of reactor volume, biofilm bacterial classification is for falling cyanogen flora, falling cyanogen flora is Pseudomonas fluorescens, pseudomonas putida, Pseudomonas stutzeri, the combination of one or more in Nocardia bacteria and genus bacillus, falling cyanogen flora to be collected near Tailings Dam in topsoil, bacterial classification biofilm mode is taked manually to add bacterial classification biofilm or Biofilmculturing, vapour-liquid ratio is set as 1 ~ 15:1.
Beneficial effect of the present invention:
The present invention is according to, unmanageable feature complicated containing pollutent in gold manufacturing enterprises cyanide wastewater, electrochemical treatment technology, chemical oxidation treatment technology, coagulating sedimentation technology and biological activated carbon treatment technology are combined, work in coordination with and advanced treatment is carried out to gold manufacturing enterprises cyanide wastewater, the advantage have that treatment effect is good, processing efficiency is high, system run all right, technical process are simple, be convenient to realize industrial application, the waste water after process can return the technological process of production and use or qualified discharge as reuse water.
Embodiment
The present invention includes following steps:
(1) adopt acid-base reagent to regulate the pH value of waste water between 8 ~ 11, add that to add massfraction be 5% ~ 50% sodium chloride solution, make waste water homogeneous;
(2) waste water after regulating enters into electrolyzer, and under the effect of direct supply regulating YIN and YANG battery lead plate, carry out electrochemical treatment, the treatment time is 30min ~ 360min;
(3) waste water after electrochemical treatment is moved in steel basin, under whipped state, add oxygenant and catalyzer carries out oxide treatment, treatment time 10min ~ 60min;
(4) waste water after oxide treatment adds flocculation agent successively under whipped state and flocculation agent carries out coagulating sedimentation, and after coagulation, waste water enters settling tank and staticly settles 15min ~ 120min;
(5) supernatant liquor after precipitation enters biological activated carbon treatment system, and under the condition of active carbon filler, biofilm bacterial classification and air aeration, carry out biological activated carbon process, the treatment time is 30min ~ 120min;
(6) supernatant liquor after process returns in the technological process of production or qualified discharge.
In described step (1), sour reagent is sulfuric acid or hydrochloric acid, and alkali reagent is sodium hydroxide solution or milk of lime.
In described step (2), the positive plate in electrolyzer is graphite cake, iron plate or the metal sheet scribbling metal oxide, and negative plate is iron plate or stainless steel plate or other metal sheets or alloy sheets.
In described step (3), stirring linear velocity is 0.01m/s ~ 10m/s, and oxygenant is hydrogen peroxide solution, and catalyzer is copper-bath.
In described step (4), stirring linear velocity is 0.01m/s ~ 10m/s, and flocculation agent is the polymer inorganic salt solution adding massfraction 10% ~ 30%, and flocculation agent is the polyacrylamide solution of massfraction 0.3 ‰ ~ 0.5 ‰.
In described step (5), biological activated carbon treatment system is upflowing or downflow system reaction tank, water-distributing device and aerating apparatus is provided with at the bottom of pond, it is active carbon filler layer above aerating apparatus, gac is coconut husk charcoal or ature of coal charcoal, dress charcoal amount accounts for 1/5 ~ 4/5 of reactor volume, biofilm bacterial classification is for falling cyanogen flora, falling cyanogen flora is Pseudomonas fluorescens, pseudomonas putida, Pseudomonas stutzeri, the combination of one or more in Nocardia bacteria and genus bacillus, falling cyanogen flora to be collected near Tailings Dam in topsoil, bacterial classification biofilm mode is taked manually to add bacterial classification biofilm or Biofilmculturing, vapour-liquid ratio is set as 1 ~ 15:1.
Specific examples 1:
Certain gold mine cyanide wastewater, pH is 9.6, CN
tfor 226.25mg/L, SCN
-for 78.24mg/L, Cu
2+for 65.86mg/L, Fe
3+for 7.26mg/L, COD are 214.28mg/L, other heavy metal ion in addition containing trace.Getting 3L waste water is placed in steel basin, add the NaCl solution 5mL that massfraction is 30%, open whipping appts, after stirring, waste water is placed in electrolyzer and carries out electrolysis treatment, electrolyzer is rectangular tank, the inside is parallel is provided with three blocks of graphite anode plates and three pieces of stainless steel cathode plates, positive plate is connected to the positive pole of direct supply, positive plate is connected to the positive pole of direct supply, after electrolysis treatment 120min, waste water is moved in steel basin, open and stir, under stirring linear velocity is 0.8m/s condition, add the hydrogen peroxide solution 10mL of massfraction 30%, the copper-bath 0.5mL of massfraction 5%, reaction 30min, then the polymeric aluminum chlorides solution 30mL adding 10g/L stirs 5min, add massfraction 0.5 ‰ anionic polyacrylamide solution 5mL again, regulate after continuing to stir 2min and stir linear velocity 0.1m/s stirring 5min, stop stirring, leave standstill 30min, with peristaltic pump supernatant liquor is pumped in biological activated carbon reactor and processes, biological activated carbon reactor is upflowing bio-reactor, gac adopts column ature of coal charcoal, amount of fill is 5kg, air adopts Ti-alloyed filter element micro-pore aeration, be placed in reactor bottom, vapour-liquid ratio is set as 3:1, bacterial classification adopts and manually adds biofilm, reaction time is 60min.The water outlet of waste water after system process through assay pH between 8 ~ 9, CN
t< 0.1mg/L, SCN-< 0.5mg/L, Cu
2+< 0.5mg/L, COD < 20mg/L, first kind pollutent is all within the highest permission emission concentration limit value, and after process, water quality can reach reuse or emission standard.
Specific examples 2:
Certain gold mine cyanide wastewater, pH is 10.5, CN
tfor 365.54mg/L, SCN
-for 43.65mg/L, Cu
2+for 26.62mg/L, Pb
2+for 8.37mg/L, COD are 135.45mg/L, other heavy metal ion in addition containing trace.Getting 3L waste water is placed in steel basin, add the NaCl solution 5mL of massfraction 30%, open whipping appts, after stirring, waste water is placed in electrolyzer and carries out electrolysis treatment, electrolyzer is rectangular tank, the inside is parallel is provided with three blocks of graphite anode plates and three pieces of stainless steel cathode plates, positive plate is connected to the positive pole of direct supply, positive plate is connected to the positive pole of direct supply, after electrolysis treatment 120min, waste water is moved in steel basin, open and stir, under stirring linear velocity is 0.8m/s condition, add the hydrogen peroxide solution 15mL of massfraction 30%, the copper-bath 0.8mL of massfraction 5%, reaction 30min, then the polymeric aluminum chlorides solution 22mL adding 10g/L stirs 5min, add massfraction 0.5 ‰ anionic polyacrylamide solution 4mL again, regulate after continuing to stir 2min and stir linear velocity 0.1m/s stirring 5min, stop stirring, leave standstill 30min, with peristaltic pump supernatant liquor is pumped in biological activated carbon reactor and processes, biological activated carbon reactor is upflowing bio-reactor, gac adopts column ature of coal charcoal, amount of fill is 5kg, air adopts Ti-alloyed filter element micro-pore aeration, be placed in reactor bottom, vapour-liquid ratio is set as 3:1, bacterial classification adopts and manually adds biofilm, reaction time is 60min.The water outlet of waste water after system process through assay pH between 8 ~ 9, CN
t< 0.1mg/L, SCN
-< 0.5mg/L, Cu
2+< 0.5mg/L, COD < 20mg/L, first kind pollutent is all within the highest permission emission concentration limit value, and after process, water quality can reach reuse or emission standard.
Claims (10)
1. a gold cyaniding enterprise Treatment of cyanogen-contained wastewater, the step of the method is as follows:
(1) adopt acid-base reagent to regulate the pH value of waste water between 8 ~ 11, adding massfraction is 5% ~ 50% sodium chloride solution, makes waste water homogeneous;
(2) waste water after regulating enters into electrolyzer, and under the effect of direct supply regulating YIN and YANG battery lead plate, carry out electrochemical treatment, the treatment time is 30min ~ 360min;
(3) waste water after electrochemical treatment is moved in steel basin, under whipped state, add oxygenant and catalyzer carries out oxide treatment, treatment time 10min ~ 60min;
(4) waste water after oxide treatment adds flocculation agent successively under whipped state and flocculation agent carries out coagulating sedimentation, and after coagulation, waste water enters settling tank and staticly settles 15min ~ 120min;
(5) supernatant liquor after precipitation enters biological activated carbon treatment system, and under the condition of active carbon filler, biofilm bacterial classification and air aeration, carry out biological activated carbon process, the treatment time is 30min ~ 120min;
(6) supernatant liquor after process returns in the technological process of production or qualified discharge.
2. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (1), sour reagent is sulfuric acid or hydrochloric acid, and alkali reagent is sodium hydroxide solution or milk of lime.
3. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (2), positive plate in electrolyzer is graphite cake, iron plate or the metal sheet scribbling metal oxide, and negative plate is iron plate or stainless steel plate.
4. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (3), stirring linear velocity is 0.01m/s ~ 10m/s.
5. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (3), oxygenant is hydrogen peroxide solution, and catalyzer is copper-bath.
6. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (4), stirring linear velocity is 0.01m/s ~ 10m/s.
7. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (4), flocculation agent is the polymer inorganic salt solution of massfraction 10% ~ 30%, and flocculation agent is the polyacrylamide solution of massfraction 0.3 ‰ ~ 0.5 ‰.
8. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (5), biological activated carbon treatment system is upflowing or downflow system reaction tank, water-distributing device and aerating apparatus is provided with at the bottom of pond, it is active carbon filler layer above aerating apparatus, gac is coconut husk charcoal or ature of coal charcoal, and dress charcoal amount accounts for 1/5 ~ 4/5 of reactor volume.
9. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (5), biofilm bacterial classification is for falling cyanogen flora, falling cyanogen flora is the combination of one or more in Pseudomonas fluorescens, pseudomonas putida, Pseudomonas stutzeri, Nocardia bacteria and genus bacillus, falling cyanogen flora is collected near Tailings Dam in topsoil, and bacterial classification biofilm mode is taked manually to add bacterial classification biofilm or Biofilmculturing.
10. a kind of gold cyaniding enterprise according to claim 1 Treatment of cyanogen-contained wastewater, it is characterized in that: in described step (5), biological activated carbon treatment system vapour-liquid ratio is set as 1 ~ 15:1.
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| CN201410514179.2A CN104261624B (en) | 2014-09-29 | 2014-09-29 | One gold cyaniding enterprise Treatment of cyanogen-contained wastewater |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174565A (en) * | 2015-10-13 | 2015-12-23 | 辽宁石油化工大学 | Method for deeply treating acrylon wastewater |
| CN105198120A (en) * | 2015-10-15 | 2015-12-30 | 桂林市春晓环保科技有限公司 | Method for removing cyanide in tailing wastewater |
| CN106396205A (en) * | 2016-08-30 | 2017-02-15 | 盛隆资源再生（无锡）有限公司 | Method for removing heavy metal by carrying out cyanide breaking on high-concentration cyanide wastewater |
| CN107176760A (en) * | 2017-06-26 | 2017-09-19 | 中电环保股份有限公司 | A kind of high salt advance for the treatment of process of cyanide-bearing effluent and processing system |
| CN112093947A (en) * | 2020-09-21 | 2020-12-18 | 招金矿业股份有限公司 | Method for removing heavy metals by cyanogen breaking of high-concentration cyanide-containing wastewater in gold production |
| CN112939322A (en) * | 2021-02-07 | 2021-06-11 | 郑州航空工业管理学院 | Water treatment method for sudden oil pollution of drinking water |
| CN112980723A (en) * | 2021-02-22 | 2021-06-18 | 中南大学 | High-arsenic-resistant thiocyanide degradation strain and application thereof |
Families Citing this family (1)
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| CN109626678A (en) * | 2019-02-25 | 2019-04-16 | 湖南馨湘碧浪环保科技有限公司 | A kind of method of the harmless processing of cyaniding tailing slurry |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005082788A1 (en) * | 2004-03-01 | 2005-09-09 | Aquenox Pty Ltd | Fluoride species removal process |
| CN102515401A (en) * | 2011-12-31 | 2012-06-27 | 长沙华时捷环保科技发展有限公司 | Cyanide wastewater degradation system and cyanide wastewater degradation method thereof |
| CN103253834A (en) * | 2013-06-04 | 2013-08-21 | 长春黄金研究院 | Deep treatment method for cyanide-containing waste water of tailings pond in gold industry |
| CN103253796A (en) * | 2013-06-04 | 2013-08-21 | 长春黄金研究院 | Method for processing waste water containing cyanide, thiocyanogen and heavy metal |
| CN103922524A (en) * | 2014-05-14 | 2014-07-16 | 山东盛阳集团有限公司 | Advanced treatment method for coking wastewater |
-
2014
- 2014-09-29 CN CN201410514179.2A patent/CN104261624B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005082788A1 (en) * | 2004-03-01 | 2005-09-09 | Aquenox Pty Ltd | Fluoride species removal process |
| CN102515401A (en) * | 2011-12-31 | 2012-06-27 | 长沙华时捷环保科技发展有限公司 | Cyanide wastewater degradation system and cyanide wastewater degradation method thereof |
| CN103253834A (en) * | 2013-06-04 | 2013-08-21 | 长春黄金研究院 | Deep treatment method for cyanide-containing waste water of tailings pond in gold industry |
| CN103253796A (en) * | 2013-06-04 | 2013-08-21 | 长春黄金研究院 | Method for processing waste water containing cyanide, thiocyanogen and heavy metal |
| CN103922524A (en) * | 2014-05-14 | 2014-07-16 | 山东盛阳集团有限公司 | Advanced treatment method for coking wastewater |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174565A (en) * | 2015-10-13 | 2015-12-23 | 辽宁石油化工大学 | Method for deeply treating acrylon wastewater |
| CN105174565B (en) * | 2015-10-13 | 2018-05-15 | 辽宁石油化工大学 | Acrylic fiber wastewater deep treatment method |
| CN105198120A (en) * | 2015-10-15 | 2015-12-30 | 桂林市春晓环保科技有限公司 | Method for removing cyanide in tailing wastewater |
| CN106396205A (en) * | 2016-08-30 | 2017-02-15 | 盛隆资源再生（无锡）有限公司 | Method for removing heavy metal by carrying out cyanide breaking on high-concentration cyanide wastewater |
| CN106396205B (en) * | 2016-08-30 | 2019-06-14 | 盛隆资源再生（无锡）有限公司 | A kind of method of high concentration cyanide wastewater broken cyanide removing heavy metals |
| CN107176760A (en) * | 2017-06-26 | 2017-09-19 | 中电环保股份有限公司 | A kind of high salt advance for the treatment of process of cyanide-bearing effluent and processing system |
| CN112093947A (en) * | 2020-09-21 | 2020-12-18 | 招金矿业股份有限公司 | Method for removing heavy metals by cyanogen breaking of high-concentration cyanide-containing wastewater in gold production |
| CN112939322A (en) * | 2021-02-07 | 2021-06-11 | 郑州航空工业管理学院 | Water treatment method for sudden oil pollution of drinking water |
| CN112980723A (en) * | 2021-02-22 | 2021-06-18 | 中南大学 | High-arsenic-resistant thiocyanide degradation strain and application thereof |
| CN112980723B (en) * | 2021-02-22 | 2022-07-12 | 中南大学 | High-arsenic-resistant thiocyanide degradation strain and application thereof |
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| CN104261624B (en) | 2016-05-18 |
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