CN107721007A - Lead-zinc sulfide ore mine wastewater step-by-step processing and sub-prime utilize technique - Google Patents
Lead-zinc sulfide ore mine wastewater step-by-step processing and sub-prime utilize technique Download PDFInfo
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- CN107721007A CN107721007A CN201710689695.2A CN201710689695A CN107721007A CN 107721007 A CN107721007 A CN 107721007A CN 201710689695 A CN201710689695 A CN 201710689695A CN 107721007 A CN107721007 A CN 107721007A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
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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
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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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
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- Water Treatment By Sorption (AREA)
Abstract
Provide a kind of Pb-Zn deposits wastewater treatment and utilization technology, it is therefore an objective to solve waste water recycling and select factory, influence index；Outer pollution discharging environmental problem.The wastewater treatment and reuse, it is by analyzing waste water quality everywhere, with reference to ore dressing to water quality requirement, targetedly processing, reuse.Concentrate waste water direct reuse is and cost-effective to Beneficiation flowsheet, neither influence index；Mine tailing wastewater, by adding alum, PAM, activated carbon, reuse after filtering；Stope waste water, partly it is used for greening and Tailings Dam depositing dust, it is other by adding soda ash, sand filtration, micro-filtration, as ceramic machine and molten liquid medicine.The invention provides the processing of a whole set of mine wastewater and recycling method, has both ensured to arrange outside waste water zero, and does not influence mineral processing index and small investment, expense are low.
Description
Technical field
The technology that a kind of lead-zinc sulfide ore mine wastewater (including the waste water such as mining, ore dressing) step-by-step processing and sub-prime utilize.
Background technology
The exploitation in mine, particularly lead-zinc sulfide ore mountain has a strong impact on earth's surface and the circulatory system of underground water, destroys water money
Source.Lead-zinc sulfide ore mountain various waste water caused by meeting in production activity, mainly give up including mining wastewater, beneficiation wastewater, mine tailing
Water and barren rock are because by sewage caused by rain drop erosion etc., wherein underground waste water is more based on acid waste water, and lead zinc beneficiation wastewater
More based on alkaline waste water, in these waste water often containing plurality of heavy metal and other toxic and harmful elements (such as copper, lead, zinc,
Arsenic, cadmium, chromium, mercury, cyanide) and COD, BOD5 beyond relevant national standard, suspension etc., beneficiation wastewater is also containing being difficult to
The beneficiation reagent of decomposition, environment is caused to have a strong impact on, serious threat is brought to ecological safety.In addition the drainage water in mineral deposit and big
The discharge of waste water and waste residue without processing up to standard is measured, can also destroy the equilibrium of surface water, underground water, causes large area drainage to leak
Bucket, spring are withered, water resource is progressively oozed under exhaustion, river cutout, surface subsidence, surface water, water environment is morphed even
Deteriorate, cause soil or earth's surface, body of groundwater to be contaminated.Some mines of coastal area can also cause seawater invasion phenomenon,
Have a strong impact on the ecological environment in mining area.Soil is penetrated into sewage irrigation or sewage discharge, causes heavy metal in soil and crops dense
Degree increases, and accelerates soil leanness, desertification, salination process, mining area agricultural eco_environmental quality is declined rapidly.Compare each
Environmental pollution damage caused by each industry waste water of row, it is seen that the ecological hazard of mine development is most serious and most prominent,
Therefore, promptly solves the task of top priority that the water pollution problems in mine has turned into mining development.
The comprehensive utilization of mine wastewater primarily solves, and the problem of the contaminated wastewater environment that mine commonly encounters, establishes
Sustainable development base is played, the Integrated Demonstration mining area for integrating technology, managing is formed, to improve mine water resource to greatest extent
Comprehensive utilization, save the supply of new water, eliminate pollution of the mine wastewater to environment.
The comprehensive utilization of mine wastewater should be with more reuses, few discharge, pollution-free for objective, there is provided exercisable mine wastewater
Comprehensive utilization technique, the sustainable development to mining industry has important practical significance.
At this stage, on lead-zinc sulfide ore mountain wastewater treatment and the scheme recycled etc., all simply beneficiation wastewater is passed through
Coagulation, flocculating setting fall part COD etc. by charcoal absorption again after falling heavy metal ion.Finally mineral processing production is back to use again.
The shortcomings that this flow is：Processing and the Utilization plan of mining wastewater are not considered；The treating capacity of beneficiation wastewater is big, processing cost
It is high；There is a certain degree of influence etc. on mineral processing index.
The content of the invention
In view of the above circumstances, the present invention (including underground waste water or is adopted hole and gushed using a kind of for lead-zinc sulfide ore mountain waste water
Water and beneficiation wastewater) integrated treatment and Utilization plan, reach in the case where not influenceing mineral processing index, it is ensured that mine wastewater zero
Outer row, and reduce cost, saving water resource.
The technical scheme of the use of the present invention is as follows：
Lead-zinc sulfide ore mine wastewater step-by-step processing and sub-prime utilize technique, mainly include the following steps that and scheme
(1) by the dense overflow water direct reuse of lead concentrate and zinc concentrate to respective Beneficiation flowsheet；
(2) the anion PAM for the potassium alum and 0.3g/t for adding 30g/t to tailing water carries out coagulating and flocculation is heavy
Drop, the removal of heavy metal ions such as the copper that mineral processing index is influenceed in mine tailing wastewater, lead, zinc, cadmium, chromium are fallen；Then 30g/t is added
Coconut husk type Powdered Activated Carbon, and by fibre-ball filtration tower come get rid of influence mineral processing index part organic residue medicament；
Waste water after reasonable sanding is largely back to use beneficiation flowsheet.
(3) a stope waste water part is used for plant area's greening water and tailing dry-heaping reservoir area depositing dust spray-water.
(4) 200g/t soda ash is added into the beneficiation wastewater after unnecessary processing and remainder stope waste water to be reduced
The hardness of water；Turbidity of water etc. is reduced by sand filtration and membrane filtration processes；Then the water after advanced treating is respectively used to ceramics
The preparation dissolving water of the trough washery water of filter, acid washing water and floating agent.
(5) mine wastewater is practical after above-mentioned substep, sub-prime, classification handle and be back to use different flows and place to use
Realize the zero-emission of mine wastewater.
Brief description of the drawings
Fig. 1 is that the mine wastewater step-by-step processing that the present invention is implemented in the river Pb-Zn deposits of Guo Sen mining companies two and sub-prime utilize
Process chart.
Fig. 2 is that the mine wastewater step-by-step processing that the present invention is implemented in the river Pb-Zn deposits of Guo Sen mining companies two and sub-prime utilize
Water balance figure.
Embodiment
The present invention enters in places such as the gloomy Mining Limited Company lead zinc-silver polymetallic ores of Inner Mongol Zalantun City state
Implementation is gone, specific embodiment is as follows.
Embodiment 1：
The gloomy Mining Limited Company lead zinc-silver polymetallic ore of Inner Mongol Zalantun City state, the base that live mineral processing production uses
This technological process is：Raw ore ore grinding accounts for 70% or so to -200 mesh, using lead zinc under the conditions of high alkalinity successively controling differential flotation process for copper,
Plumbum floatation flow sweeps four essences for one thick three, and chats product order returns, when handling sulphide ore (or require acquisition high-grade lead
During concentrate) plumbum floatation rough concentrate is regrinded；Plumbum floatation mine tailing is using the one thick three flow Flotation Recovery Zinc for sweeping four essences.It is floating
The lead and zinc concentrate of choosing enters concentrate store respectively after dense, ceramic dehydration and sold.And in concentrate overflow water containing substantial amounts of copper,
The heavy metal ion such as lead, zinc and floating agent.
If direct reuse can influence mineral processing index to mineral processing production after concentrate overflow water is mixed；And reuse after handling
Investment and processing cost can be increased again.
And to be lead respectively sort " mother liquid coming " sorted with zinc to lead and zinc concentrate overflow water, they are directly divided without processing
It is not back to use in respective Beneficiation flowsheet, not only index is not influenceed, moreover it is possible to save beneficiation cost.
Lead concentrate overflow water is passed through pipe by the gloomy Mining Limited Company lead zinc-silver polymetallic ore of Inner Mongol Zalantun City state
Road direct reuse enters selected lead flow in ball mill cyclone pump pond；Zinc concentrate overflow water is direct by force (forcing) pump
Be back to zinc Beneficiation flowsheet brews water.
By being contrasted before and after the present embodiment：As before and after the floatation indicators (main grade and the rate of recovery) of lead zinc；And medicament into
Than having saved 2.3 yuan/ton of raw ores before implementing after this implementation.Investment and the running cost to both wastewater treatments have been saved simultaneously
With.
Embodiment 2：
For the gloomy Mining Limited Company lead zinc-silver polymetallic ore flotation tailing waste water of Inner Mongol Zalantun City state, enter
30g/t potassium alum and 0.3g/t anion PAM carry out coagulating and flocculating setting, will after the precipitation of 1 hour
The removal of heavy metal ions such as the copper of influence mineral processing index, lead, zinc, cadmium, chromium falls in mine tailing wastewater；Then 30g/t coconut palm is added
Shell mould Powdered Activated Carbon, and the part organic residue medicament of influence mineral processing index and suspension are got rid of by fibre-ball filtration tower
Thing etc..Mine tailing wastewater water quality comparing result is shown in Table 1 before and after reasonable sanding.
The beneficiation wastewater of table 1 and purified water water quality detection result (mg/L)
Waste water after reasonable sanding is largely back to use beneficiation flowsheet.As shown in Table 1：Mine tailing after above-mentioned processing gives up
Water, influence the heavy metal ion and SS, COD of mineral processing indexcrEtc. being greatly reduced.By the Water circulation after processing to mineral processing production and tail
Mineral water does not handle direct reuse and is shown in Table 2 to the mineral processing index contrast of production.
The mine tailing wastewater of the table 2 influence contrast table (%) to mineral processing index before and after the processing
Embodiment 3：
The gloomy Mining Limited Company lead zinc-silver mining of Inner Mongol Zalantun City state is strip mining transformation, and mining area is located in Daxing
Pacify ridge area, it is the heavy metal ion such as slightly acidic water and lead zinc off-balancesheet standard of drainage above Ground to adopt hole water burst, it is impossible to is directly discharged.
Effluent will be adopted and get to special high level pond, the greening of plant area is then partly into through piping by the use of water spot as green
Change water；The mining tailing wasteland of the dry heap of tailings dewatering is partly into, the depositing dust spray-water for reservoir area.
The mine tailing wastewater of last unnecessary reasonable sanding and adopt hole water through addition 200g/t soda ash and 1 hour
After precipitation, then after carse, medium and small 3 layers of sand filtration and micro-filtration (filter core uses PP cottons or activated carbon, wire wound cotton filter core etc.).Should
The molten medicinal water of trough washery water, acid washing water water and flotation for ceramic filter.
It is final really realize mine wastewater all of.
Claims (3)
1. lead-zinc sulfide ore mine wastewater step-by-step processing and sub-prime utilize technique
(1) by the dense overflow water direct reuse of lead concentrate and zinc concentrate to respective Beneficiation flowsheet；
(2) the anion PAM for the potassium alum and 0.3g/t for adding 30g/t to tailing water carries out coagulating and flocculating setting, will
The removal of heavy metal ions such as the copper of influence mineral processing index, lead, zinc, cadmium, chromium falls in mine tailing wastewater；Then 30g/t coconut palm is added
Shell mould Powdered Activated Carbon, and by fibre-ball filtration tower come get rid of influence mineral processing index part organic residue medicament；Appropriateness
Waste water after processing is largely back to use beneficiation flowsheet.
(3) a stope waste water part is used for plant area's greening water and tailing dry-heaping reservoir area depositing dust spray-water.
(4) 200g/t soda ash is added into the beneficiation wastewater after unnecessary processing and remainder stope waste water reduces water
Hardness；Turbidity of water etc. is reduced by sand filtration and membrane filtration processes；Then the water after advanced treating is respectively used to ceramic filter
The preparation dissolving water of the trough washery water of machine, acid washing water and floating agent.
2. technique is utilized according to lead-zinc sulfide ore mine wastewater step-by-step processing described in right 1 and sub-prime, it is characterised in that described
Lead-zinc sulfide ore mine wastewater includes waste water caused by ore dressing and stope waste water.
3. technique is utilized according to lead-zinc sulfide ore mine wastewater step-by-step processing described in right 1 and sub-prime, it is characterised in that ore dressing is given up
Water is to adjust pH value to suppress pyrite by lime；Sodium sulfite, zinc sulfate, W-1 suppress zincblende；No. SN-9, xanthate, black powder,
MIBC floating agent also has the activator of the zincblende such as copper sulphate as collecting agent, in addition, containing substantial amounts of after ore-dressing practice
The beneficiation wastewater of heavy metal ion, COD, BOD, SS and other residual medicine components；Mining wastewater is acid and contain a huge sum of money
Belong to the very high waste water of ion, hardness.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710689695.2A CN107721007A (en) | 2017-08-14 | 2017-08-14 | Lead-zinc sulfide ore mine wastewater step-by-step processing and sub-prime utilize technique |
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| CN201710689695.2A CN107721007A (en) | 2017-08-14 | 2017-08-14 | Lead-zinc sulfide ore mine wastewater step-by-step processing and sub-prime utilize technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759531A (en) * | 2019-11-07 | 2020-02-07 | 南昌航空大学 | Quality-based treatment-grading recycling method for beneficiation wastewater of tungsten-zinc polymetallic ores |
| CN112811541A (en) * | 2019-11-18 | 2021-05-18 | 腾冲华辉火山灰开发有限公司 | High-concentration wastewater medicament compounding device and method |
| CN115259459A (en) * | 2022-05-05 | 2022-11-01 | 中国矿业大学(北京) | Method for internal recycling of grading branch wastewater flow of concentrating mill |
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| CN105858967A (en) * | 2016-05-27 | 2016-08-17 | 河南师范大学 | Method for deeply treating municipal sewage and reusing treated sewage in circulating cooling water system |
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| CN106517458A (en) * | 2016-11-03 | 2017-03-22 | 深圳清华大学研究院 | Method for reusing beneficiation wastewater of lead-zinc oxide ore |
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2017
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| CN1562794A (en) * | 2004-04-06 | 2005-01-12 | 南京栖霞山锌阳矿业有限公司 | Method for cyclic utilizing mineral dressing waste water from sulphur ore of lead-zinc |
| CN1943870A (en) * | 2006-08-23 | 2007-04-11 | 青海西部矿业科技有限公司 | Process for increasing complicated sulfurized-lead-zinc ore dressing recovery rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759531A (en) * | 2019-11-07 | 2020-02-07 | 南昌航空大学 | Quality-based treatment-grading recycling method for beneficiation wastewater of tungsten-zinc polymetallic ores |
| CN112811541A (en) * | 2019-11-18 | 2021-05-18 | 腾冲华辉火山灰开发有限公司 | High-concentration wastewater medicament compounding device and method |
| CN115259459A (en) * | 2022-05-05 | 2022-11-01 | 中国矿业大学(北京) | Method for internal recycling of grading branch wastewater flow of concentrating mill |
| CN115259459B (en) * | 2022-05-05 | 2024-02-02 | 中国矿业大学(北京) | Method for recycling in-process wastewater of sectional quality-dividing branch of concentrating mill |
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