CN101805084A - Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd - Google Patents
Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd Download PDFInfo
- Publication number
- CN101805084A CN101805084A CN201010136085A CN201010136085A CN101805084A CN 101805084 A CN101805084 A CN 101805084A CN 201010136085 A CN201010136085 A CN 201010136085A CN 201010136085 A CN201010136085 A CN 201010136085A CN 101805084 A CN101805084 A CN 101805084A
- Authority
- CN
- China
- Prior art keywords
- mine
- waste water
- treatment
- aeration
- neutralization
- 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 55
- 238000000034 method Methods 0.000 title claims abstract description 37
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 31
- 229910052793 cadmium Inorganic materials 0.000 title claims abstract description 31
- 229910052745 lead Inorganic materials 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 29
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 23
- 239000011593 sulfur Substances 0.000 title claims abstract description 23
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 22
- 239000011707 mineral Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 26
- 238000005273 aeration Methods 0.000 claims abstract description 23
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001179 sorption measurement Methods 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 7
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- 230000001112 coagulating effect Effects 0.000 claims abstract description 6
- 238000004062 sedimentation Methods 0.000 claims abstract description 4
- 230000015271 coagulation Effects 0.000 claims abstract description 3
- 238000005345 coagulation Methods 0.000 claims abstract description 3
- 239000006228 supernatant Substances 0.000 claims abstract description 3
- 239000004571 lime Substances 0.000 claims description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000005352 clarification Methods 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 6
- 239000003621 irrigation water Substances 0.000 abstract description 5
- 230000003472 neutralizing effect Effects 0.000 abstract description 5
- 238000009298 carbon filtering Methods 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 239000011133 lead Substances 0.000 description 26
- 235000010755 mineral Nutrition 0.000 description 14
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000010949 copper Substances 0.000 description 13
- 239000002253 acid Substances 0.000 description 10
- 239000003814 drug Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 239000005864 Sulphur Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 238000005065 mining Methods 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- 239000000920 calcium hydroxide Substances 0.000 description 5
- 235000011116 calcium hydroxide Nutrition 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 150000001879 copper Chemical class 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 3
- 241000237502 Ostreidae Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 235000020636 oyster Nutrition 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910052569 sulfide mineral Inorganic materials 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 241000255964 Pieridae Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 231100000739 chronic poisoning Toxicity 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000007483 microbial process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a process for treating mine wastewater containing sulfur minerals, As, Pb and Cd, which comprises the following steps: (1) performing blast aeration and oxidation treatment on the mine wastewater containing the sulfur minerals, As, Pb and Cd in an aeration tank; (2) neutralizing and coagulating the wastewater after the aeration and oxidation in a neutralization tank and controlling the pH to be between 8.6 and 9.5; (3) standing and depositing the wastewater after the neutralization and the coagulation treatment in a sedimentation tank; and (4) after the wastewater is clear after standing for a certain period of time, performing advanced treatment on heavy metal in a supernatant in a physical and chemical adsorption device and an activated carbon filtering system to obtain clean water meeting the environmental-protection or agricultural requirement. Through the process, peculiar smell in the mine wastewater can be eliminated, the wastewater color is changed to be normal, and the requirement of the quality of mine wastewater containing the discharged sulfur minerals, As, Pb and Cd in 'Standards for irrigation water quality' (GB5084-2005) can be met.
Description
Technical field
The present invention relates to a kind of treatment process of mine wastewater, especially relate to a kind of treatment process that contains the mine wastewater of heavy metal elements such as sulfur mineral, As, Pb, Cd, can widespread use in the comprehensive regulation of mine concentrator drainings such as coloured, chemical industry, metallurgy, mine tailing storehouse overflow water and mining pit water burst.
Background technology
Contain sulphide ores mostly in the metal mine ore both at home and abroad, sulphide ores distributes extensively at occurring in nature, quantity is many, it can come across in nearly all geology ore body, especially metalliferous deposits such as copper, lead, zinc, these sulfide minerals are under air, water and microbial process, take place moltenly to soak, a series of physical-chemical reactions such as oxidation, hydrolysis, very easily form acid waste water.These acid waste water pH is low, acidity is big, contains poisonous in a large number, harmful heavy metal, is the main source of the heavy metal ion-containing waste water of polluted water environment, and mining area surrounding enviroment and human health are caused serious harm.According to incompletely statistics, the quantity discharged of China's mine wastewater accounts for about 10% of national trade effluent total release, the situation that each mining area ubiquity acid water pollution is more serious.Acidic mine waste water pollutes the problem that become international, receives the concern of various countries.For example: U.S.'s acid wastewater in mine has polluted 23, the river of 000km; Canada's acidic mine waste water has polluted 19, the river of 300km and 72, the lake of 00ha and reservoir.
The contained heavy metal ion of these factory effluents is of a great variety, brings certain difficulty to processing.Heavy metal ion-containing waste water has the characteristics of the following aspects to the pollution of environment:
1. heavy metal contaminants can not be decomposed into innoxious substance voluntarily in physical environment, and the change of form can only take place or do not shifting between the homophase, its toxicity does not obtain the elimination of essence in these processes, if it is improper that disposal has slightly, heavy metal ion can be returned soluble in water, again produce harm, form " secondary pollution ";
2. organism absorbs heavy metal from environment, and through the biological magnification of food chain, little by little enrichment is got up in higher organism;
3. heavy metal can interact and make it to lose activity after entering human body with physiology polymer substance generation intensive, also may be accumulated in and cause chronic poisoning in the human body, and this accumulation harm needs more than ten years just to display sometimes.
The treatment process of acid wastewater in mine mainly is divided into two kinds: neutralisation and microbial method.Neutralisation is the most frequently used a kind of method, be to add alkaline neutraliser (soda-lime, slaked lime, lime carbonate, blast furnace slag, rhombspar etc.) in the oxytropism waste water, the pH value of waste water is improved, and heavy metal ion in the waste water and neutralizing agent generation chemical reaction form precipitation of hydroxide, remove the heavy metal ion in the water body on the other hand.Microbial method is a sulphur cycle principle of utilizing occurring in nature, utilizes the biological reducing reaction of sulphate reducing bacteria by alienation vitriol, and sulfate reduction is become H
2S, and utilize certain micro-organisms with H
2S is oxidized to elemental sulfur, and heavy metal ion " accumulation " in microbe is got up simultaneously.The example of external using microbe method same for treating acidic mine wastewater is more, as Montana, United States certain acid wastewater in mine is set up SRB (reversion bacterium) treatment system, and water outlet pH value reaches 7, and the clearance of Fe, Al, Cd and Cu is also higher.Along with the progress of science, the treatment technology of acid wastewater in mine constantly obtains new development, as wetland facture, microbial film adsorption treatment method and biochemical material filtration method etc.
Acid waste water for the sulfur-bearing acid group, domestic adopt with milk of lime is one section neutralisation of neutralizing agent more, if but the pH value of acid waste water is lower, adopting milk of lime is one section neutralisation of neutralizing agent, the amount of lime of administering waste water needs per ton on the one hand is big, processing cost is higher, will produce a large amount of waste residues on the other hand, bring the potential Pollution risk to environment.
After some mine wastewater process milk of lime neutralizing treatment, the pH value is between 6～7, do not present acidity, but contents of heavy metal elements such as sulfide mineral, As, Pb, Cd severe overweight still in the water quality does not reach " agricultural irrigation water quality standard " emission request (GB5084-2005).Have following phenomenon as domestic certain copper mine overflow water in last person's process: (1) often is off color, and overflow water presents green and oyster white sometimes; (2) peculiar smell is arranged, when the last person, pocket well (hole) has been located peculiar smell; (3) water-quality guideline exceeds standard, and detects through sampling, and there is the phenomenon that exceeds standard in heavy metal elements such as sulfide and As, Pb, Cd in the overflow water.
Summary of the invention
Purpose of the present invention is exactly the problems referred to above that exist at prior art, and provide a kind of and not only can eliminate peculiar smell in the mine wastewater, make the waste water color to become normal, and reach " agricultural irrigation water quality standard " and (GB5084-2005) contain the treatment process of sulfur mineral, As, Pb, Cd waste water in the mine of emission request.
For realizing the object of the invention, the treatment process that mine of the present invention contains sulfur mineral, As, Pb, Cd waste water adopts following technology, step:
(1) blast aeration: the mine is contained sulfur mineral, As, Pb, Cd waste water blast aeration oxide treatment in the aeration tank, aeration time 30-50min; Aerating system can adopt pottery system micro porous aeration head, and bubble is small, aeration is even, can improve oxygen utilization rate and water treatment efficiency, and aeration oxygen blast simultaneously can be removed sulfide, improves anaerobic environment, be decomposed beneficiation reagent.
(2) neutralization, coagulating treatment: the waste water after the aeration oxidation feeds in the neutralization tank, add into the basic agent-lime slurry that configures with volume pump, regulate the pH value, make that pH is controlled between the 8.6-9.5 in neutralization, the flocculation process, to be advisable between the 8.8-9.2, hydraulic detention time is 25-40min; Heavy metal As, Pb, Cd will form the complex compound of throw out and other indissolubles with hydroxide radical at this moment.
Lime slurry can adopt the lime stirred pot that lime is stirred, and concentration (weight %) is controlled at about 10%, is the best with the 8-15% scope.
(3) leave standstill, precipitate: the waste water of process neutralization, coagulating treatment feeds in the settling tank and leaves standstill, precipitates; Adopting mud scraper that the mud in the settling tank is scraped to bucket discharges.
Leave standstill, sedimentation time is more than 3h.
(4) materialization adsorption treatment: leave standstill after the some time treats waste water clarification, supernatant liquor enters materialization adsorption unit-activated carbon filtration system wherein heavy metal is carried out advanced treatment, obtains to meet the clear water of environmental protection or agricultural requirement.Pollutent such as heavy metal, organism in the advanced water treatment, adsorption rate is about 80%.
The treatment process principle that mine of the present invention contains sulfur mineral, As, Pb, Cd waste water is: because that the mine contains sulfur mineral, As, Pb, Cd sulfides from wastewater is more, under the condition that a large amount of sulfide exist, most of heavy metal element forms sulfide precipitation with sulfide in water, but should precipitation easily produce the hydrolysis phenomenon, and make heavy metal element such as As, Pb in the overflow water, Cd and sulfide exceed standard; And under the condition that sulfide content is low in the water, the hydroxide radical formation complex compound sediment in heavy metal elements such as As, Pb, Cd and the lime, highly stable very difficult hydrolysis in water, solubleness is much smaller than sulfide precipitation.
Therefore,, must remove the sulfide in the overflow water earlier, add lime again and make it produce hydroxide throw out and indissoluble complex compound that the utmost point is insoluble in water if want heavy metal element precipitation in the water is reduced its hydrolysis phenomenon to greatest extent.
After adopting above technical scheme, the treatment process that mine of the present invention contains sulfur mineral, As, Pb, Cd waste water has the following advantages:
(1) mine is contained sulfur mineral, As, Pb, Cd waste water and at first carry out the aeration oxide treatment, solved the peculiar smell problem that anaerobism causes on the one hand; On the other hand oxidation removal sulphur avoided post-processed to produce metal sulphide thing precipitation, provide favourable condition for removing metal ion;
(2) arsenic that exceeds standard, lead, three kinds of metallic pollution factors of cadmium can add basic agent milk of lime by chemical method and remove;
(3) chamber condition test research by experiment, add basic agent at three kinds of different pollution factors that exceed standard after control pH about 9, can make it up to standard;
(4) for reaching " agricultural irrigation water quality standard " (GB5084-2005) water quality standard requirement, and consider that arsenic, lead, cadmium in the waste water all have bigger pollution to have enrichment in secular discharging to environment, for reducing its emission concentration to greatest extent, technology has increased gac materialization adsorption unit at last, further guarantees to efflux the water quality of overflow water.
Description of drawings
Fig. 1 contains the processing technological flow figure of sulfur mineral, As, Pb, Cd waste water for the mine.
Embodiment
For further describing the present invention, be process object with domestic certain copper mining tailing storehouse overflow water below, the treatment process that mine of the present invention is contained sulfur mineral, As, Pb, Cd waste water is described further in conjunction with the accompanying drawings and embodiments.
This mine tailing storehouse, copper mining tailing storehouse overflow water water yield is 100m
3/ h.Repeated detection shows that the pH value of this overflow water is slightly acidic between 5.6-6.9, and Pb concentration is up to 1.144mg/L, and As concentration is up to 0.561mg/L, and Cd concentration is up to 0.067mg/L.And " agricultural irrigation water quality standard " (GB5084-2005) water quality standard Pb, As, Cd are required to be respectively :≤0.20mg/L ,≤0.05mg/L ,≤0.01mg/L.
By consulting amount of literature data, carry out comprehensive analysis in conjunction with the original ore property that selects factory and office's reason, mineral processing circuit, regime of agent and mine tailing slurry subsequent processes, facility etc., and according to the generation flow process and the characteristic of overflow water, general mechanism in conjunction with above phenomenon generation, conclude that this copper mining tailing overflow water produced pollution phenomenon reason mainly contains three aspect reasons: (1) raw ore sulfur-bearing background values height, and heavy metal element such as association As, Pb, Cd, make it enter the mine tailing storehouse with mine tailing; (2) ore-dressing technique is not high for the rate of recovery of sulphur, makes a large amount of element sulphurs enter the mine tailing storehouse; (3) beneficiation reagent mostly is macromolecule organic, easily forms flocculation sediment, and wherein contains heavy metal elements such as element sulphur and As, Pb, Cd, enters the mine tailing storehouse with mine tailing.Concrete phenomenon analysis is as follows:
(1) sewage is off color often.
Water body presents green: this copper ore dressing main products is a copper, and mine tailing contains cupric ion in the storehouse, and cupric ion presents blueness when lower concentration, present green during high density; Enrichment plant has added the organic medicament of multiple polymer in ore dressing process, milltailings enters to be in behind the mine tailing storehouse and leaves standstill anaerobic state, and macromolecule organic and cupric ion form flocculation sediment also can present green.
Water body presents oyster white: have multiple metal ions such as copper, lead in the mine tailing storehouse, the local location metal ion may produce complex status under certain condition, forms regional area and produces the oyster white phenomenon once in a while, makes the water body muddiness, but leave standstill after for some time the water body clarification that becomes naturally.Analyze and add a large amount of beneficiation reagents in the former because ore dressing process, these medicaments through Exposures to Sunlight, precipitation and with the air catalytic oxidation can natural decomposition, disappearance, the clarification so water body becomes.
(2) sewage has peculiar smell.
Organic medicament that ore dressing adds enters under the anaerobic environment of mine tailing storehouse, can produce peculiar smell under action of microorganisms;
This copper ore dressing workshop ore-dressing technique adopt system select earlier copper+copper chats regrind+full tail selects three processes of sulphur, comprehensive raw ore sulphur composition reaches 12%, the sulphur background values has caused a large amount of mine tailings to contain a large amount of sulfide widely.
Select the used flotation reagent of factory mostly to be organic sulfide and macromolecular organic compound greatly.Itself just has irritating smell some medicament, and these medicaments all enter in the mine tailing storehouse with mine tailing more or less.
The mine tailing thickening equipment adopts Φ 24M mine tailing thickener, and dissolved oxygen was inevitable seldom during sedimentary mine tailing was starched in the thickener, belong to anaerobic environment.
Macromolecular organic compound easily forms flocculation sediment, produces the variation of aspects such as color, smell.
Itself has smell beneficiation collecting agent, and in addition, in floatation process, the Decomposition of medicament is also along with initial concentration, slurry temperature and change, high more unstable of the specific concentration that concentration is low.Therefore, the medicament that remains in lower concentration in the mine tailing slurry is easy to decompose and produces peculiar smell.
Effect and process that above-mentioned several aspects reason produces all are to carry out the same period, and are progressive.Their reaction is more complicated all, can't show with chemical formula, but finally cause this copper mining tailing overflow water pollution situation.
The treatment process that adopts mine provided by the invention to contain sulfur mineral, As, Pb, Cd waste water is handled this mine tailing storehouse overflow water.
The processing technological flow figure that contains sulfur mineral, As, Pb, Cd waste water in conjunction with mine shown in Figure 1 finds out, this technology comprise blast aeration-pH regulator, in and coagulation-staticly settle-materialization 4 stages of absorption.
Blast aeration: structures adopt the plug-flow aeration tank of reinforced concrete structure, useful volume 60m
3, pottery system micro porous aeration head, aeration time 36min; Adopt roots blower air blast oxygenation in the aeration tank.
Medicament configuration: adopt the lime stirred pot that lime is stirred.
Add medicament: adopt volume pump to add lime to neutralization tank.
PH regulator, in and coagulation: in the neutralization tank of reinforced concrete structure, regulate pH, its useful volume 50m
3, hydraulic detention time 30min; Adopt submersible sewage pump that bed mud is delivered to settling tank.
Staticly settle: structures adopt useful volume 350m
3The rectangular sedimentation tank of reinforced concrete structure, hydraulic detention time 3h adopts the running type mud scraper that the mud in the settling tank is scraped to bucket, adopts the slag stock pump that sand setting is promoted to the mine tailing storehouse.
Materialization absorption: structures adopt 200m
3The reinforced concrete clean water basin are used to regulate the settling tank water outlet, are convenient to enter the activated carbon filtration system, hydraulic detention time 2h; Adopt fresh water pump that water outlet is pumped into activated carbon filtration system-activated charcoal filter, be used for pollutents such as advanced water treatment heavy metal, organism, adsorption rate is about 80%; Adopt fresh water pump that the water outlet of activated carbon filtration system is pumped into reservoir, be used for field irrigation.
Claims (3)
1. a mine contains the treatment process of sulfur mineral, As, Pb, Cd waste water, it is characterized in that adopting following technology, step:
(1) blast aeration: the mine is contained sulfur mineral, As, Pb, Cd waste water blast aeration oxide treatment in the aeration tank;
(2) neutralization, coagulating treatment: feed in the neutralization tank through the waste water after the aeration oxidation, drop into the basic agent-lime slurry that configures, regulate the pH value, neutralization, coagulation, pH is between 8.6-9.5 in control;
(3) leave standstill, precipitate: the waste water of process neutralization, coagulating treatment feeds in the settling tank and leaves standstill, precipitates;
(4) materialization adsorption treatment: leave standstill after the some time treats waste water clarification, supernatant liquor enters materialization adsorption unit-activated carbon filtration system wherein heavy metal is carried out advanced treatment, obtains to meet the clear water of environmental protection or agricultural requirement.
2. mine as claimed in claim 1 contains the treatment process of sulfur mineral, As, Pb, Cd waste water, it is characterized in that: blast aeration time 30-50min; Lime slurry concentration (weight %) is in the 8-15% scope, and the pH of neutralization, coagulating treatment is controlled between the 8.8-9.2, and hydraulic detention time is 25-40min; Leave standstill, more than the sedimentation time 3h.
3. mine as claimed in claim 1 or 2 contains the treatment process of sulfur mineral, As, Pb, Cd waste water, it is characterized in that: aerating system adopts pottery system micro porous aeration head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101360858A CN101805084B (en) | 2010-03-29 | 2010-03-29 | Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101360858A CN101805084B (en) | 2010-03-29 | 2010-03-29 | Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101805084A true CN101805084A (en) | 2010-08-18 |
| CN101805084B CN101805084B (en) | 2012-05-30 |
Family
ID=42607067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101360858A Expired - Fee Related CN101805084B (en) | 2010-03-29 | 2010-03-29 | Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101805084B (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241446A (en) * | 2011-05-26 | 2011-11-16 | 武汉海德天物新材料有限公司 | Mine wastewater treatment method and device |
| CN102259998A (en) * | 2011-07-28 | 2011-11-30 | 江苏南方涂装环保股份有限公司 | Treatment method for wastewater containing heavy metals |
| CN102285730A (en) * | 2011-05-26 | 2011-12-21 | 武汉海德天物新材料有限公司 | Treatment method and device for acid-base neutralization of mine wastewater |
| CN102503030A (en) * | 2011-11-04 | 2012-06-20 | 中国矿业大学(北京) | System for treating heavy metal wastewater |
| CN102897956A (en) * | 2012-10-29 | 2013-01-30 | 云南锡业集团有限责任公司研究设计院 | Method for treating high-arsenious wastewater |
| CN102936068A (en) * | 2012-11-30 | 2013-02-20 | 广西高峰矿业有限责任公司 | In-process circular and comprehensive recovery technology for mineral processing wastewater of tin-lead-zinc polymetallic sulphide ores |
| CN103288237A (en) * | 2013-05-09 | 2013-09-11 | 中国矿业大学(北京) | Coupling reactor for magnetic flocculation and modified volcanic rock particle adsorption |
| CN103482783A (en) * | 2013-09-12 | 2014-01-01 | 安徽省绿巨人环境技术有限公司 | Treatment process for plumbic acid waste water generated in production process of lead storage batteries |
| CN103708649A (en) * | 2013-12-30 | 2014-04-09 | 河南省邦源环保工程有限公司 | Method for processing wastewater containing lead by combining flocculent precipitation with adsorption filtration |
| CN104211211A (en) * | 2014-08-26 | 2014-12-17 | 苏州泓博环保科技有限公司 | Physicochemical pre-treatment method for electroplating waste liquor |
| CN105130041A (en) * | 2015-06-26 | 2015-12-09 | 中钢集团马鞍山矿山研究院有限公司 | Improved treatment method of acidic waste water containing heavy metals |
| CN106495391A (en) * | 2015-09-08 | 2017-03-15 | 铜仁市万山区盛和矿业有限责任公司 | A kind of method that fermentation mother liquor processes sulfur ore deposit waste water |
| CN107162268A (en) * | 2017-06-28 | 2017-09-15 | 浙江深梦皮革科技有限公司 | A kind of processing unit of leather-making waste water |
| CN107879507A (en) * | 2013-10-16 | 2018-04-06 | 三菱重工业株式会社 | Drainage processing method and drain treatment apparatus |
| CN107954549A (en) * | 2017-12-04 | 2018-04-24 | 天津科技大学 | A kind of absorption-aeration-nanofiltration group technology and its special purpose device for arsenic-containing water processing |
| CN108191193A (en) * | 2018-01-31 | 2018-06-22 | 宇星科技发展(深圳)有限公司 | Sludge heavy-metal, fertilizer point and energy recovery system and method |
| CN108298731A (en) * | 2018-03-22 | 2018-07-20 | 沈阳建筑大学 | A kind of deeply removing arsenic system and device and its dearsenicating method |
| CN108947022A (en) * | 2018-09-05 | 2018-12-07 | 汉源四环锌锗科技有限公司 | A kind of technique for treating industrial wastewater |
| CN109111062A (en) * | 2018-11-05 | 2019-01-01 | 湖南水口山有色金属集团有限公司 | A kind of efficient method for removing heavy metal in tailings reservoir wastewater |
| CN110342676A (en) * | 2019-06-19 | 2019-10-18 | 福建兴万祥建设集团有限公司 | A kind of Method for processing acid mine drainage |
| CN110407359A (en) * | 2019-08-08 | 2019-11-05 | 长沙瑞泽能源科技股份有限公司 | One kind adopting beneficiation wastewater treatment method |
| CN112546532A (en) * | 2020-12-25 | 2021-03-26 | 昆明理工大学 | Method and device for passivating heavy metals in tailings by gas-solid phase vulcanization crystallization-microcapsule |
| CN112830635A (en) * | 2021-01-19 | 2021-05-25 | 吉林大学 | Physical, chemical and biological combined treatment device and method for acidic wastewater |
| CN113264611A (en) * | 2021-05-28 | 2021-08-17 | 中南大学 | Treatment method of molybdenum-tungsten fluorite multi-metal ore dressing wastewater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884145A (en) * | 2006-06-29 | 2006-12-27 | 溧阳市天华环保机械厂 | Mine water treatment process and mine water integrated treatment device |
| JP2009072670A (en) * | 2007-09-19 | 2009-04-09 | Nittetsu Mining Co Ltd | Method for purification of antimony-containing wastewater |
| CN101565247A (en) * | 2008-04-25 | 2009-10-28 | 邢殿满 | Zero-discharge purifying treatment method for mine wastewater and mine domestic sewage |
-
2010
- 2010-03-29 CN CN2010101360858A patent/CN101805084B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884145A (en) * | 2006-06-29 | 2006-12-27 | 溧阳市天华环保机械厂 | Mine water treatment process and mine water integrated treatment device |
| JP2009072670A (en) * | 2007-09-19 | 2009-04-09 | Nittetsu Mining Co Ltd | Method for purification of antimony-containing wastewater |
| CN101565247A (en) * | 2008-04-25 | 2009-10-28 | 邢殿满 | Zero-discharge purifying treatment method for mine wastewater and mine domestic sewage |
Non-Patent Citations (2)
| Title |
|---|
| 《广东化工》 20091231 郑慧 重金属废水的处理技术现状和发展趋势 第134-135页 1－3 第36卷, 第10期 2 * |
| 《青海环境》 19970930 魏建新 酸性矿井水处理技术综述 第121-124页 1－3 第7卷, 第3期 2 * |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285730A (en) * | 2011-05-26 | 2011-12-21 | 武汉海德天物新材料有限公司 | Treatment method and device for acid-base neutralization of mine wastewater |
| CN102241446B (en) * | 2011-05-26 | 2013-12-18 | 武汉海德天物新材料有限公司 | Mine wastewater treatment method and device |
| CN102241446A (en) * | 2011-05-26 | 2011-11-16 | 武汉海德天物新材料有限公司 | Mine wastewater treatment method and device |
| CN102259998A (en) * | 2011-07-28 | 2011-11-30 | 江苏南方涂装环保股份有限公司 | Treatment method for wastewater containing heavy metals |
| CN102503030A (en) * | 2011-11-04 | 2012-06-20 | 中国矿业大学(北京) | System for treating heavy metal wastewater |
| CN102897956A (en) * | 2012-10-29 | 2013-01-30 | 云南锡业集团有限责任公司研究设计院 | Method for treating high-arsenious wastewater |
| CN102936068A (en) * | 2012-11-30 | 2013-02-20 | 广西高峰矿业有限责任公司 | In-process circular and comprehensive recovery technology for mineral processing wastewater of tin-lead-zinc polymetallic sulphide ores |
| CN103288237B (en) * | 2013-05-09 | 2014-10-08 | 中国矿业大学(北京) | Coupling reactor for magnetic flocculation and modified volcanic rock particle adsorption |
| CN103288237A (en) * | 2013-05-09 | 2013-09-11 | 中国矿业大学(北京) | Coupling reactor for magnetic flocculation and modified volcanic rock particle adsorption |
| CN103482783A (en) * | 2013-09-12 | 2014-01-01 | 安徽省绿巨人环境技术有限公司 | Treatment process for plumbic acid waste water generated in production process of lead storage batteries |
| CN107879507A (en) * | 2013-10-16 | 2018-04-06 | 三菱重工业株式会社 | Drainage processing method and drain treatment apparatus |
| CN103708649A (en) * | 2013-12-30 | 2014-04-09 | 河南省邦源环保工程有限公司 | Method for processing wastewater containing lead by combining flocculent precipitation with adsorption filtration |
| CN104211211A (en) * | 2014-08-26 | 2014-12-17 | 苏州泓博环保科技有限公司 | Physicochemical pre-treatment method for electroplating waste liquor |
| CN105130041A (en) * | 2015-06-26 | 2015-12-09 | 中钢集团马鞍山矿山研究院有限公司 | Improved treatment method of acidic waste water containing heavy metals |
| CN106495391A (en) * | 2015-09-08 | 2017-03-15 | 铜仁市万山区盛和矿业有限责任公司 | A kind of method that fermentation mother liquor processes sulfur ore deposit waste water |
| CN106495391B (en) * | 2015-09-08 | 2020-04-03 | 贵州筑信达创科技有限公司 | Method for treating sulfur ore wastewater by fermentation mother liquor |
| CN107162268A (en) * | 2017-06-28 | 2017-09-15 | 浙江深梦皮革科技有限公司 | A kind of processing unit of leather-making waste water |
| CN107954549A (en) * | 2017-12-04 | 2018-04-24 | 天津科技大学 | A kind of absorption-aeration-nanofiltration group technology and its special purpose device for arsenic-containing water processing |
| CN108191193A (en) * | 2018-01-31 | 2018-06-22 | 宇星科技发展(深圳)有限公司 | Sludge heavy-metal, fertilizer point and energy recovery system and method |
| CN108191193B (en) * | 2018-01-31 | 2020-12-22 | 宇星科技发展(深圳)有限公司 | Sludge heavy metal, fertilizer and energy recovery system and method |
| CN108298731A (en) * | 2018-03-22 | 2018-07-20 | 沈阳建筑大学 | A kind of deeply removing arsenic system and device and its dearsenicating method |
| CN108298731B (en) * | 2018-03-22 | 2021-10-29 | 沈阳建筑大学 | Deep arsenic removal method |
| CN108947022A (en) * | 2018-09-05 | 2018-12-07 | 汉源四环锌锗科技有限公司 | A kind of technique for treating industrial wastewater |
| CN109111062A (en) * | 2018-11-05 | 2019-01-01 | 湖南水口山有色金属集团有限公司 | A kind of efficient method for removing heavy metal in tailings reservoir wastewater |
| CN110342676A (en) * | 2019-06-19 | 2019-10-18 | 福建兴万祥建设集团有限公司 | A kind of Method for processing acid mine drainage |
| CN110407359A (en) * | 2019-08-08 | 2019-11-05 | 长沙瑞泽能源科技股份有限公司 | One kind adopting beneficiation wastewater treatment method |
| CN112546532A (en) * | 2020-12-25 | 2021-03-26 | 昆明理工大学 | Method and device for passivating heavy metals in tailings by gas-solid phase vulcanization crystallization-microcapsule |
| CN112546532B (en) * | 2020-12-25 | 2021-10-29 | 昆明理工大学 | Method and device for passivating heavy metals in tailings by gas-solid phase vulcanization crystallization-microcapsule |
| CN112830635A (en) * | 2021-01-19 | 2021-05-25 | 吉林大学 | Physical, chemical and biological combined treatment device and method for acidic wastewater |
| CN112830635B (en) * | 2021-01-19 | 2022-05-17 | 吉林大学 | Physical, chemical and biological combined treatment device and method for acidic wastewater |
| CN113264611A (en) * | 2021-05-28 | 2021-08-17 | 中南大学 | Treatment method of molybdenum-tungsten fluorite multi-metal ore dressing wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101805084B (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805084B (en) | Process for treating mine wastewater containing sulfur minerals, As, Pb and Cd | |
| CN105130041A (en) | Improved treatment method of acidic waste water containing heavy metals | |
| CN104961304B (en) | A kind of high concentration fluorine chemical wastewater handling process | |
| CN101628773B (en) | Treatment process of copper-iron-contained high-concentration acidic mine wastewater | |
| CN107601779B (en) | Method and device for treating and recycling mine copper-containing acidic wastewater | |
| CN101168463B (en) | Method for treating manganese-series phosphorized waste water | |
| CN103030233A (en) | Treatment method for high-concentration arsenic waste water | |
| CN104445732A (en) | Process for removing thallium from thallium-containing heavy metal wastewater through neutralization and flocculation | |
| CN102030445B (en) | Four-step method for processing and recycling tin ore floatation wastewater | |
| CN102701534A (en) | Ecological treatment method for acid mine water of coal mine | |
| CN107758819B (en) | Method for purifying acid mine drainage water in tailing pond | |
| CN102786133A (en) | Stepwise precipitation process for recovering iron/copper resource in acid mine waste water | |
| CN1091076C (en) | Process for treating sewage containing Zn and Cd | |
| EP2349936A1 (en) | Process for extracting iron from an aqueous acid solution | |
| CN111377516B (en) | Acid mine wastewater treatment process | |
| CN102139973A (en) | Method for treating micro-polluted and eutrophicated water body by utilizing coprecipitation method | |
| CN102303931A (en) | Treating method and device for electroplating wastewater | |
| CN207904003U (en) | A kind of cupric acidity liquid waste treatment system | |
| KR100842304B1 (en) | Apparatus for purificating the outflow water ofabandoned mine and method for controlling thereof | |
| RU2438998C1 (en) | Method of neutralising acid sulphate-containing effluents and device to this end | |
| DE102008018854B4 (en) | Process for the treatment of mine waters | |
| CN110627265A (en) | Sulfur-containing waste ore leaching wastewater pretreatment system and method | |
| CN213570041U (en) | Domestic sewage phosphorus removal device | |
| CN212151859U (en) | Waste water treatment device | |
| CN212198906U (en) | System for biological treatment acid mine waste water retrieves iron ion simultaneously |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20180329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |