CN107902809A - A kind of electrocatalytic oxidation membrane separation process handles copper, lead, zinc polymetal sulphide ore beneficiation wastewater technique - Google Patents
A kind of electrocatalytic oxidation membrane separation process handles copper, lead, zinc polymetal sulphide ore beneficiation wastewater technique Download PDFInfo
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- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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Abstract
The invention discloses a kind of electrocatalytic oxidation membrane separation process to handle copper, lead, zinc polymetal sulphide ore beneficiation wastewater technique, the technique has merged the technologies such as Full-automatic self-cleaning filtering, electrocatalytic oxidation and Ultra filtration membrane, effectively improve the removal rate of the middle pollutant of waste water and heavy metal ion etc., entirely the operational stability of technique is strong, operating cost is low, clean environment firendly, while effectively saves wastewater treatment expense and energy consumption；The present invention applies Full-automatic self-cleaning filter, has the function of that raw water filter and carries out automatic cleaning blowdown to filter core automatically, the degree of automation is high；Main agents in processing procedure are electronics, and without adding excess oxygen agent, secondary pollution is small, moreover it is possible to which degradation of contaminant, the active group that electrode produces can sterilize；The advantages of material high-efficiency separation, purifying and high magnification numbe concentrate can be achieved in ultrafiltration membrane equipment；The deep purifying processing of waste water is realized, backwater water quality is improved, reaches discharging standards, recycle ore dressing backwater.
Description
Technical field
The present invention relates to beneficiation wastewater processing technology field, more particularly to a kind of processing copper, lead, zinc polymetal sulphide ore ore dressing
The technique of waste water.
Background technology
The ore dressing of copper, lead, zinc polymetal sulphide ore is by after raw ore comminution to certain particle size, by foam flotation method to copper
Pb-Zn deposits thing is sorted, and obtains copper, lead, zinc concentrate product, and wherein froth flotation process is that emersion is consolidated from the suspension of water
The refining process of body mineral, is airwater mist cooling interface selective separation process.Usually one ton of tcrude ore of processing need to consume 3~
6 tons of water, this part water mainly flow to Tailings Dam in flotation tailing ore pulp, become beneficiation wastewater.However, in order to realize copper-lead zinc
Mineral efficiently separate, and need to add the floatability difference that a large amount of different classes of floating agents realize mineral in flotation pulp,
Achieve the purpose that minerals separation so that the waste water that ore dressing produces generally has big pH value height, wastewater discharge, complicated component, has
Evil component (such as black powder, xanthate, terpenic oil, sulfide, oxide, alkali, Cu2+、Pb2+Etc. other metal ions) characteristic such as more.
So as to cause heavy metal ion in beneficiation wastewater, solid suspension content and COD etc. to exceed country《Lead, Zn Cr coating
Pollutant emission standard》(GB25466-2010) and《Copper, cobalt, nickel emission of industrial pollutants standard》(GB25467-2010)
Ask, directly outer row is serious to be polluted environment, influences water quality, endanger animals and plants and health, if without purified treatment direct reuse
Into mineral processing production, it will seriously affect the stability of ore dressing process, and deteriorate beneficiating technology index.
At present, the processing method of the domestic and international research of copper-lead zinc beneficiation wastewater and application has focused largely on natural degradation, coagulation
Precipitation, neutralize, absorption, oxygenolysis and microbial method etc., but these waste water treatment process there are wastewater purification long flow path,
It is of high cost, the problems such as backwater treating stations capital expenditure is high, takes up a large area, and backwater reclamation rate is relatively low.Therefore, for existing copper-lead
The deficiency of zinc multi-metal sulfide beneficiation wastewater treatment process, develops efficient, low cost, short route, energy saving, strong applicability choosing
Ore deposit waste water advanced purifying New Process for Treatment, it is dirty caused by surrounding enviroment can to eliminate the discharge of non-ferrous metal ore enterprise wastewater
Dye, while ore-dressing practice flow can be back to after making beneficiation wastewater purified treatment, enterprise's mineral processing production cost is reduced, it is precious to saving
Expensive water resource, the economic benefit and the capability of sustainable development for improving enterprise are of great significance.
The content of the invention
The technical problem to be solved in the present invention is for copper, lead, zinc polymetal sulphide ore beneficiation wastewater complicated component, pollutant
Content is high, and purification of waste water difficulty is big, traditional beneficiation wastewater treatment process there are wastewater purification is of high cost, technological process is long,
The outstanding problems such as capital expenditure is big, backwater reclamation rate is relatively low, there is provided a kind of efficient, stabilization, energy conservation and environmental protection, operating cost are low, useless
The good purification process technique for copper, lead, zinc polymetal sulphide ore beneficiation wastewater of purifying water process effect, reaches beneficiation wastewater
Discharging standards, and realize backwater resource circulation utilization.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of electrocatalytic oxidation-membrane separation process processing
Copper, lead, zinc polymetal sulphide ore beneficiation wastewater technique, it is characterised in that：Carry out according to the following steps,
1), copper, lead, zinc polymetal sulphide ore beneficiation wastewater is input to by pump and is mixed in groove, due to handled choosing
Ore deposit pH value of waste water is typically larger than 9, need to be by adding sulfuric acid stirring and adjusting pH value of waste water in the range of 6~9, wherein tank diameter waterpower
30~50 seconds residence times；
2), the waste water after adjusting pH value is flowed into regulating reservoir through pipeline, is adjusted by regulating reservoir and enters next section of operation
Confluent, while regulating reservoir play collection, store waste water function, and in regulating reservoir set pH value on-line computing model, root
The data regulation and control sulfuric acid dosage shown according to monitor controls pH value of waste water in the range of 6~9；
3), the waste water in regulating reservoir is input to self-cleaning filter by pumping, and filters out the bulky grain solid impurity in waste water；
4) the waste water gravity flow, handled through self-cleaning filter enters electrocatalytic oxidation module and carries out Strong oxdiative, reduction etc. one
Serial reaction, the oxidant and hydroxyl free radical produced by electrochemistry are acted on, passivation cathode adsorbing metal ions, anode
COD of degrading COD, neutralize pH value etc., and wherein main technologic parameters are during electrocatalytic oxidation, pole plate spacing：0.5、
~5cm, current density：0.01mA/cm2~0.2A/cm2, 5~50V of decomposition voltage, 30~120min of electro-catalysis time；
5), the waste water stream after electrocatalytic oxidation processing enters in hyperfiltration membrane assembly, is formed after processing electrocatalytic oxidation cotton-shaped
Impurity, further reduces the solid suspension of water outlet, and concentrate caused by separation is back to thickening pond or Tailings Dam；
6) water after ultrafiltration membrane treatment, is flowed into clear water pond, high-order reuse pool is then promoted to by pump, in case circulation
Utilize, wherein clear water pond primarily serves cushioning effect.
Further, the sulfuric acid in step 1) is dilute sulfuric acid, refers to the sulfuric acid that Solute mass fraction is less than or equal to 70%
Aqueous solution.
Further, the self-cleaning filter in step 3) has strainer, it directly intercepts the impurity in water using strainer,
Water body recovery technology, particulate matter are removed, turbidity is reduced, purifies water, and the other precision equipments of protection water treatment system are just
Often work, the cleaning crushing of wherein self-cleaning filter are 0.01Mpa, control voltage to be alternating current 220V.
Further, the electrocatalysis oxidation reaction device in step 4) makes waste water using the high-voltage pulse for being added in water body
Electrolysis generation hydroxyl radical free radical (HO) and useless Organic substance in water are aoxidized, reduced, being adsorbed, aggregation, are purifications of waste water
Specific high level oxidation furnaces, wherein electricity is used as catalyst, one kind or several combination conduct in hydrogen peroxide, oxygen, ozone
Oxidant.
Preferably, the hyperfiltration membrane assembly in step 5) is made of 3 film blocks, and wherein ultrafiltration membrane is a kind of aperture specification one
Cause, the micropore filtering film that nominal pore scope is 2~50nm.
Compared with prior art, it is a major advantage of the invention that first, give up for copper, lead, zinc polymetal sulphide ore ore dressing
Water constituent is complicated, and noxious pollutant content is high, and purification of waste water difficulty is big, and traditional beneficiation wastewater treatment process is of high cost, and backwater returns
With rate it is relatively low the problems such as, creatively develop the processing copper, lead, zinc polymetal sulphide ore ore dressing of electrocatalytic oxidation-membrane separation process and give up
The technique of water, the technique have merged the efficient new technology such as Full-automatic self-cleaning filtering, electrocatalytic oxidation and Ultra filtration membrane, significantly
Beneficiation wastewater purification systems are improved, effectively improve the removal rate of the middle pollutant of waste water and heavy metal ion etc., whole technique
Operational stability it is strong, operating cost is low, clean environment firendly, while effectively save wastewater treatment expense and energy consumption；Second, this hair
The Full-automatic self-cleaning filter applied in bright technique overcome traditional filtering equipment pollutant holding capability it is small, easily blocked by dirt, mistake
Filter part need disassembly, cleaning and can not numerous shortcomings such as monitor filter state, have and raw water filter and automatically to filter core
System uninterruptedly supplies water when carrying out the function of automatic cleaning blowdown, and cleaning blowdown, can be with the working status of monitor filter, certainly
Dynamicization degree is very high, also covers by the demand of the various filtering accuracies of 10um to 3000um；Electro-catalytic oxidation technology is in waste water
In processing procedure, main agents are electronics, without adding excess oxygen agent, produce not or seldom secondary pollution, moreover it is possible to play
The effect of degradation of contaminant, the active group that electrode produces can also play the role of sterilization, be provided simultaneously with strong oxidizing property, can be real
The deep purifying of existing waste water, has the distinguishing feature such as cleaning, economic, efficient；Ultrafiltration membrane is equipped and technology has integration degree
The high, advantage such as operating cost is low, operation and maintenance are easy, is also equipped with realizing material high-efficiency separation, purifying and high magnification numbe concentration
Advantage.
The present invention first selects advanced electrocatalytic oxidation and membrane separation technique coupling processing copper, lead, zinc polymetal sulphide ore
Ore deposit waste water, solve conventional beneficiation wastewater treatment process existing for many drawbacks, realize waste water deep purifying processing, improve
Backwater water quality, reaches discharging standards, ore dressing backwater is effectively obtained resource recycling utilization.
Brief description of the drawings
Fig. 1 is present invention process flow chart.
Embodiment
It is described further with reference to the technological process shown in specific embodiment and Fig. 1：
Embodiment 1, the beneficiation wastewater of processing are the beneficiation wastewater that certain plumbum-zinc vulcanizing mine ore dressing plant produces, main exceeded
Pollutant load is respectively suspended matter 152mg/L, COD 212mg/L, sulphur 3.0mg/L, lead 0.97mg/L, and pH value is
10.99 turbidity 36.1NTU.
Purified treatment step is as follows：
1), copper, lead, zinc polymetal sulphide ore beneficiation wastewater is input to by pump and is mixed in groove, by adding sulfuric acid
Stirring and adjusting pH value of waste water is kept stirring groove hydraulic detention time 40 seconds in the range of 6~9；
2), the waste water after adjusting pH value is flowed into regulating reservoir through pipeline, is adjusted by regulating reservoir and enters next section of operation
Confluent, and by pH value on-line computing model measure pH value of waste water, by regulate and control be added to tank diameter in sulfuric acid dosage control
PH value of waste water processed is in the range of 6~9；
3), the waste water in regulating reservoir is input to self-cleaning filter by pumping, and filters out the bulky grain solid impurity in waste water；
4) the waste water gravity flow, handled through self-cleaning filter enters electrocatalytic oxidation module and carries out Strong oxdiative, reduction etc. one
Serial reaction, the oxidant and hydroxyl free radical produced by electrochemistry are acted on, passivation cathode adsorbing metal ions, anode
Degraded COD, neutralize pH value etc., and wherein main technologic parameters are during electrocatalytic oxidation, pole plate spacing：2cm, current density：
0.05mA/cm2, decomposition voltage 10V, electro-catalysis time 60min；
5), the waste water stream after electrocatalytic oxidation processing enters in hyperfiltration membrane assembly, is formed after processing electrocatalytic oxidation cotton-shaped
Impurity, further reduces the solid suspension of water outlet, and concentrate caused by separation is back to thickening pond or Tailings Dam；
6) water after ultrafiltration membrane treatment, is flowed into clear water pond, high-order reuse pool is then promoted to by pump.
Copper, lead, zinc polymetal sulphide ore beneficiation wastewater water quality after electrocatalytic oxidation-membrane separation process processing reaches《Lead
Zn Cr coating pollutant emission standard》(GB25466-2010) (directly discharge),《Copper, cobalt, nickel emission of industrial pollutants standard》
(GB25467-2010) (directly discharge) etc. requires, and reaches《Urban wastewater treatment firm pollutant emission standard》
(GB18918-2002) discharge standard of (level-one A standards), beneficiation wastewater purified treatment result of the test are as shown in table 1 below：
1 beneficiation wastewater of table water quality situation before and after the processing
Embodiment 2, the beneficiation wastewater of processing are the beneficiation wastewater that certain plumbum-zinc vulcanizing mine ore dressing plant produces, main exceeded
Pollutant load is respectively suspended matter 186mg/L, COD 245mg/L, sulphur 3.2mg/L, copper 0.56mg/L, lead
0.85mg/L, pH value 11.50, turbidity 107NTU.
Purified treatment step is as follows：
1), copper, lead, zinc polymetal sulphide ore beneficiation wastewater is input to by pump and is mixed in groove, by adding sulfuric acid
Stirring and adjusting pH value of waste water is kept stirring groove hydraulic detention time 30 seconds in the range of 6~9；
2), the waste water after adjusting pH value is flowed into regulating reservoir through pipeline, is adjusted by regulating reservoir and enters next section of operation
Confluent, and by pH value on-line computing model measure pH value of waste water, by regulate and control be added to tank diameter in sulfuric acid dosage control
PH value of waste water processed is in the range of 6~9；
3), the waste water in regulating reservoir is input to self-cleaning filter by pumping, and filters out the bulky grain solid impurity in waste water；
4) the waste water gravity flow, handled through self-cleaning filter enters electrocatalytic oxidation module and carries out Strong oxdiative, reduction etc. one
Serial reaction, the oxidant and hydroxyl free radical produced by electrochemistry are acted on, passivation cathode adsorbing metal ions, anode
Degraded COD, neutralize pH value etc., and wherein main technologic parameters are during electrocatalytic oxidation, pole plate spacing：5cm, current density：
0.2mA/cm2, decomposition voltage 50V, electro-catalysis time 30min；
5), the waste water stream after electrocatalytic oxidation processing enters in hyperfiltration membrane assembly, is formed after processing electrocatalytic oxidation cotton-shaped
Impurity, further reduces the solid suspension of water outlet, and concentrate caused by separation is back to thickening pond or Tailings Dam；
6) water after ultrafiltration membrane treatment, is flowed into clear water pond, high-order reuse pool is then promoted to by pump.
Copper, lead, zinc polymetal sulphide ore beneficiation wastewater water quality after electrocatalytic oxidation-membrane separation process processing reaches《Lead
Zn Cr coating pollutant emission standard》(GB25466-2010) (directly discharge),《Copper, cobalt, nickel emission of industrial pollutants standard》
(GB25467-2010) (directly discharge) etc. requires, and reaches《Urban wastewater treatment firm pollutant emission standard》
(GB18918-2002) discharge standard of (level-one A standards), beneficiation wastewater purified treatment result of the test are as shown in table 2 below：
2 beneficiation wastewater of table water quality situation before and after the processing
Embodiment 3, the beneficiation wastewater of processing are the beneficiation wastewater that certain plumbum-zinc vulcanizing mine ore dressing plant produces, main exceeded
Pollutant load is respectively suspended matter 177mg/L, COD 239mg/L, sulphur 3.6mg/L, copper 0.76mg/L, lead
1.05mg/L, pH value 11.23, turbidity 96NTU.
Purified treatment step is as follows：
1), copper, lead, zinc polymetal sulphide ore beneficiation wastewater is input to by pump and is mixed in groove, by adding sulfuric acid
Stirring and adjusting pH value of waste water is kept stirring groove hydraulic detention time 50 seconds in the range of 6~9；
2), the waste water after adjusting pH value is flowed into regulating reservoir through pipeline, is adjusted by regulating reservoir and enters next section of operation
Confluent, and by pH value on-line computing model measure pH value of waste water, by regulate and control be added to tank diameter in sulfuric acid dosage control
PH value of waste water processed is in the range of 6~9；
3), the waste water in regulating reservoir is input to self-cleaning filter by pumping, and filters out the bulky grain solid impurity in waste water；
4) the waste water gravity flow, handled through self-cleaning filter enters electrocatalytic oxidation module and carries out Strong oxdiative, reduction etc. one
Serial reaction, the oxidant and hydroxyl free radical produced by electrochemistry are acted on, passivation cathode adsorbing metal ions, anode
Degraded COD, neutralize pH value etc., and wherein main technologic parameters are during electrocatalytic oxidation, pole plate spacing：0.5cm, electric current are close
Degree：0.01mA/cm2, decomposition voltage 5V, electro-catalysis time 120min；
5), the waste water stream after electrocatalytic oxidation processing enters in hyperfiltration membrane assembly, is formed after processing electrocatalytic oxidation cotton-shaped
Impurity, further reduces the solid suspension of water outlet, and concentrate caused by separation is back to thickening pond or Tailings Dam；
6) water after ultrafiltration membrane treatment, is flowed into clear water pond, high-order reuse pool is then promoted to by pump.
Copper, lead, zinc polymetal sulphide ore beneficiation wastewater water quality after electrocatalytic oxidation-membrane separation process processing reaches《Lead
Zn Cr coating pollutant emission standard》(GB25466-2010) (directly discharge),《Copper, cobalt, nickel emission of industrial pollutants standard》
(GB25467-2010) (directly discharge) etc. requires, and reaches《Urban wastewater treatment firm pollutant emission standard》
(GB18918-2002) discharge standard of (level-one A standards), beneficiation wastewater purified treatment result of the test are as shown in table 3 below：
3 beneficiation wastewater of table water quality situation before and after the processing
The present invention is described in detail above, it is described above, it is only the preferred embodiments of the invention, when cannot
Limit the scope of the present invention, i.e., it is all to make equivalent changes and modifications according to the application scope, it all should still belong to covering scope of the present invention
It is interior.
Claims (5)
- A kind of 1. electrocatalytic oxidation-membrane separation process processing copper, lead, zinc polymetal sulphide ore beneficiation wastewater technique, it is characterised in that：Press Following steps carry out,1), copper, lead, zinc polymetal sulphide ore beneficiation wastewater is input to and is mixed in groove, by adding sulfuric acid and stirring and adjusting PH value of waste water is in the range of 6~9, and wherein tank diameter hydraulic detention time is 30~50 seconds；2), the waste water after adjusting pH value is transferred in regulating reservoir, the confluent for entering next section of operation is adjusted by regulating reservoir； PH value on-line computing model is set in regulating reservoir, data show according to monitor regulate and control sulfuric acid dosage, control pH value of waste water 6~ In the range of 9；3) waste water in regulating reservoir, is input to self-cleaning filter, filters out the bulky grain solid impurity in waste water；4), the waste water handled through self-cleaning filter enters electrocatalytic oxidation module progress Strong oxdiative and reduction reaction, passes through electricity The oxidant and hydroxyl free radical that chemistry produces are acted on, and are passivated cathode adsorbing metal ions, anodic degradation COD, neutralize pH Value, wherein main technologic parameters are during electrocatalytic oxidation, pole plate spacing：0.5~5cm, current density：0.01mA/cm2~ 0.2A/cm2, decomposition voltage 5V~50V, 30~120min of electro-catalysis time；5), the waste water stream after electrocatalytic oxidation processing enters in hyperfiltration membrane assembly, handles the cotton-shaped impurity formed after electrocatalytic oxidation, The solid suspension of water outlet is further reduced, concentrate caused by separation is back to thickening pond or Tailings Dam；6) water after ultrafiltration membrane treatment, is flowed into clear water pond, high-order reuse pool is then promoted to by pump, in case circulation profit With.
- 2. electrocatalytic oxidation according to claim 1-membrane separation process processing copper, lead, zinc polymetal sulphide ore beneficiation wastewater work Skill, it is characterised in that：The sulfuric acid of addition is dilute sulfuric acid in step 1), it is less than or equal to 70% sulfuric acid for Solute mass fraction Aqueous solution.
- 3. electrocatalytic oxidation according to claim 1-membrane separation process processing copper, lead, zinc polymetal sulphide ore beneficiation wastewater work Skill, it is characterised in that：Self-cleaning filter in step 3) is provided with strainer, and the impurity in water is directly intercepted by strainer, is gone Except the suspended matter and particulate matter in water body, turbidity is reduced, is purified water, and protect water treatment system；Self-cleaning filter it is clear Crushing is washed to be 0.01Mpa, control voltage to be alternating current 220V.
- 4. electrocatalytic oxidation according to claim 1-membrane separation process processing copper, lead, zinc polymetal sulphide ore beneficiation wastewater work Skill, it is characterised in that：In step 4), electrocatalysis oxidation reaction module makes waste water using the high-voltage pulse for being added in water body Electrolysis generation hydroxyl radical free radical (HO) and useless Organic substance in water are aoxidized, reduced, being adsorbed, aggregation, wherein electric conduct Catalyst, one kind or several combination in hydrogen peroxide, oxygen, ozone are used as oxidant.
- 5. electrocatalytic oxidation according to claim 1-membrane separation process processing copper, lead, zinc polymetal sulphide ore beneficiation wastewater work Skill, it is characterised in that：Hyperfiltration membrane assembly in step 5) is made of 3 film blocks, and wherein ultrafiltration membrane is consistent, specified for aperture specification Pore diameter range is the micropore filtering film of 2~50nm.
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| CN108624912A (en) * | 2018-05-25 | 2018-10-09 | 王勇 | A kind of precious metal element electrification recovery process and system |
| CN108892222A (en) * | 2018-08-01 | 2018-11-27 | 辽宁实洋环保科技有限公司 | A kind for the treatment of method and apparatus of the waste water generated when producing epoxy chloropropane through glycerine method |
| CN109231638A (en) * | 2018-11-24 | 2019-01-18 | 江苏卓博环保科技有限公司 | Lead-zinc beneficiation wastewater treatment for reuse devices and methods therefor |
| CN109437448A (en) * | 2018-11-24 | 2019-03-08 | 江苏卓博环保科技有限公司 | Pb-Zn deposits beneficiation wastewater treatment for reuse devices and methods therefor |
| CN110216023A (en) * | 2019-07-04 | 2019-09-10 | 长春黄金研究院有限公司 | A kind of Copper Ores production return water purification method |
| CN110282791A (en) * | 2019-08-02 | 2019-09-27 | 鸿灌环境技术有限公司 | One kind being used for printing house's groundwater treatment equipment and technique |
| CN110981041A (en) * | 2019-12-09 | 2020-04-10 | 河南菲迪泰环境科技有限公司 | Treatment method of smelting comprehensive sewage |
| JP2021004436A (en) * | 2019-06-26 | 2021-01-14 | 崑喨 洪 | Method for processing eco-stone fiber paper by recycling tailings |
| CN114684981A (en) * | 2022-06-02 | 2022-07-01 | 杭州水处理技术研究开发中心有限公司 | Treatment method and system for wastewater containing heavy metals |
| CN115636537A (en) * | 2022-10-28 | 2023-01-24 | 广西高峰矿业有限责任公司 | Method for improving resource utilization rate of tin-lead polymetallic ore beneficiation wastewater by adopting sectional treatment |
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| CN108624912A (en) * | 2018-05-25 | 2018-10-09 | 王勇 | A kind of precious metal element electrification recovery process and system |
| CN108892222A (en) * | 2018-08-01 | 2018-11-27 | 辽宁实洋环保科技有限公司 | A kind for the treatment of method and apparatus of the waste water generated when producing epoxy chloropropane through glycerine method |
| CN109231638A (en) * | 2018-11-24 | 2019-01-18 | 江苏卓博环保科技有限公司 | Lead-zinc beneficiation wastewater treatment for reuse devices and methods therefor |
| CN109437448A (en) * | 2018-11-24 | 2019-03-08 | 江苏卓博环保科技有限公司 | Pb-Zn deposits beneficiation wastewater treatment for reuse devices and methods therefor |
| CN109231638B (en) * | 2018-11-24 | 2023-10-24 | 江苏卓博环保科技有限公司 | Lead zinc oxide ore dressing wastewater treatment and recycling device and method thereof |
| JP2021004436A (en) * | 2019-06-26 | 2021-01-14 | 崑喨 洪 | Method for processing eco-stone fiber paper by recycling tailings |
| CN110216023A (en) * | 2019-07-04 | 2019-09-10 | 长春黄金研究院有限公司 | A kind of Copper Ores production return water purification method |
| CN110282791A (en) * | 2019-08-02 | 2019-09-27 | 鸿灌环境技术有限公司 | One kind being used for printing house's groundwater treatment equipment and technique |
| CN110981041A (en) * | 2019-12-09 | 2020-04-10 | 河南菲迪泰环境科技有限公司 | Treatment method of smelting comprehensive sewage |
| CN114684981A (en) * | 2022-06-02 | 2022-07-01 | 杭州水处理技术研究开发中心有限公司 | Treatment method and system for wastewater containing heavy metals |
| CN115636537A (en) * | 2022-10-28 | 2023-01-24 | 广西高峰矿业有限责任公司 | Method for improving resource utilization rate of tin-lead polymetallic ore beneficiation wastewater by adopting sectional treatment |
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