CN106495389B - A method of extracting arsenic from ore waste water - Google Patents
A method of extracting arsenic from ore waste water Download PDFInfo
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- CN106495389B CN106495389B CN201510565821.4A CN201510565821A CN106495389B CN 106495389 B CN106495389 B CN 106495389B CN 201510565821 A CN201510565821 A CN 201510565821A CN 106495389 B CN106495389 B CN 106495389B
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Abstract
The present invention relates to ore wastewater processing technologies, more particularly to a kind of method for extracting arsenic from ore waste water, preprocessed dose is added in ore waste water and is stirred 0.5-1h, speed of agitator is 60-120r/min, after standing 3-4h, by it through ultraviolet irradiation 10-15min, it is warming up to 43-50 DEG C, alienation arsenic is added and restores fermented liquid, it is sealed by fermentation 10 days, filtering, obtain solid content and filtrate, the present invention utilizes crops slag, it is response matrix that alienation arsenic, which restores fermented liquid, it is controlled in conjunction with ultraviolet irradiation technology and response parameter, so that biochemical reaction occurs for arsenic and microorganism, and then promote the removal rate of arsenic, heavy-metal ion removal simultaneously, reduce contaminated wastewater, the pollution of this method is small, it is at low cost, less energy consumption.
Description
Technical field
The present invention relates to ore wastewater processing technologies, and in particular to a method of arsenic is extracted from ore waste water.
Background technique
When demand of the mankind to mineral resources is growing, the waste water that is generated in mining mineral resource and process
It is consequently increased, since the arsenic in waste water content is higher, is not good at if administering, water body or soil property arsenic pollution will be caused, and then unfavorable
Great research class of the problem of in human health, or even the causing arsenic poisoning, therefore going arsenic removal in mine wastewater as environment protection field
Topic.
The method that arsenic is extracted from mine wastewater, usually there is neutralisation, and alkali is added usually into waste water, utilizes neutralization reaction
Principle so that useless water part harmful ion is precipitated with sediment, and then reduces the content of waste water intermediate ion, but the method alkali charge
It is required that big, if too small with alkali, metallics cannot precipitate completely, if with base excess, and alkali pollution is caused, and in addition to this, precipitating
Object is difficult to recycle, and there are secondary pollution risks.
In recent years, bioanalysis, which administers mine wastewater, becomes the new issue of domestic and international scientific research personnel research, wherein Patent No.
A kind of 200910038782.7 " method of same for treating acidic mine wastewater " discloses a kind of useless using citric acid bacillus and mine
Water carries out anaerobic reaction, and process is simple, and whole pollution-free, arsenic recovery rate is high, but the oxygen susceptibility of its citric acid bacillus is high, volatile
It is living, in turn result in the wasting of resources and economic input.
Based under this background, the present invention provides a kind of new approaches for the method for extracting arsenic in mine wastewater.
Summary of the invention
The purpose of the present invention is to provide a kind of low consumption of resources, low cost, low pollutions, and ore arsenic in waste water removes
The good processing method of effect.
It is achieved especially by following technical scheme:
A method of extracting arsenic, method from ore waste water are as follows: pretreating agent is added in ore waste water and is stirred
0.5-1h, speed of agitator 60-120r/min are mixed, after standing 3-4h, by it through ultraviolet irradiation 10-15min, is warming up to
43-50 DEG C, alienation arsenic is added and restores fermented liquid, is sealed by fermentation 10 days, filtering obtains solid content and filtrate.
The pretreating agent, the w/v with ore waste water are 1:5-7.
The pretreating agent, raw material is by weight are as follows: 3-7 parts of maize pulps, 5-7 parts of bagasses, 1-3 parts of peanut skins,
6-13 parts of pomelo peels, 0.01-0.05 parts of sodium hyaluronates.
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are carried out activation processing 20-
Sodium hyaluronate is added in 50min, and maintaining temperature is maintenance 1-2 days at 10-16 DEG C, for use.
The ultraviolet light, wavelength are 0.2-0.3 μm.
The alienation arsenic restores fermented liquid, and the volume ratio with ore waste water is 1:8-13.
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar for accounting for clear water amount 6-8%, Zhan Qing
The gypsum of water 0.08-0.12% and the sawdust for accounting for clear water amount 1-2%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution
It is inoculated with alienation arsenic reducing bacteria, in the case where temperature is 5-13 DEG C, aerated fermentation 6-9 days.
Beneficial effects of the present invention
The present invention is reacted using crops slag with ore waste water, and combines the control of mixing speed, so that in waste water
Ionic structure is destroyed, and porosity improves, and crops slag releases nutriment, is restored fermented liquid for alienation arsenic and is mentioned
The nutrition such as required cellulose are provided for nutrients such as abundant carbon, nitrogen, and to promote the domestication ability of alienation arsenic reducing bacteria
Substance, and then alienation arsenic reducing bacteria is improved to the tolerance of arsenic poison；Ultraviolet light is recycled, so that material is excited,
And then energy is provided for the transition of arsenic ion, then cooperate the biochemical action and biochemical reaction temperature of alienation arsenic reduction fermented liquid,
So that a part of arsenic ion is reduced into arsenic simple substance, complex reaction occurs for another part arsenic ion and heavy metal；Pass through fluorescence spectrum
Analyzer analyzes arsenic, obtains: arsenic recovery rate is about higher by 1.5 times up to 95% or more, than traditional neutralisation, to sum up illustrates: this
While arsenic removal is gone in invention, pollution of the heavy metal to water quality, and arsenic recovery rate are also eliminated, pollution is small, energy consumption is small.
Specific embodiment
It is limited below with reference to specific embodiment technical solution of the present invention is further, but claimed
Range is not only limited to made description.
Embodiment 1
A method of extracting arsenic, method from ore waste water are as follows: pretreating agent is added in ore waste water and is stirred
0.8h, speed of agitator 70r/min are mixed, after standing 3.5h, by it through ultraviolet irradiation 10min, 43 DEG C is warming up to, is added different
Change arsenic and restore fermented liquid, be sealed by fermentation 10 days, filtering obtains solid content and filtrate.
The pretreating agent, the w/v with ore waste water are 1:5.
The pretreating agent, raw material is by weight are as follows: 7kg maize pulp, 6kg bagasse, 1kg peanut skin, 8kg shaddock
Skin, 0.05kg sodium hyaluronate.
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are activated
Sodium hyaluronate is added in 38min, and maintaining temperature is maintenance 1 day at 11 DEG C, for use.
The ultraviolet light, wavelength are 0.25 μm.
The alienation arsenic restores fermented liquid, and the volume ratio with ore waste water is 1:11.
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar for accounting for clear water amount 6.5%, Zhan Qing
The gypsum of water 0.1% and the sawdust for accounting for clear water amount 1.2%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution inoculum is different
Change arsenic reducing bacteria, in the case where temperature is 7 DEG C, aerated fermentation 6 days.
Embodiment 2
A method of extracting arsenic, method from ore waste water are as follows: pretreating agent is added in ore waste water and is stirred
0.6h, speed of agitator 100r/min are mixed, after standing 4h, by it through ultraviolet irradiation 14min, 45 DEG C is warming up to, is added different
Change arsenic and restore fermented liquid, be sealed by fermentation 10 days, filtering obtains solid content and filtrate.
The pretreating agent, the w/v with ore waste water are 1:6.
The pretreating agent, raw material is by weight are as follows: 3kg maize pulp, 7kg bagasse, 2kg peanut skin, 10kg shaddock
Skin, 0.03kg sodium hyaluronate.
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are activated
Sodium hyaluronate is added in 50min, and maintaining temperature is maintenance 2 days at 15 DEG C, for use.
The ultraviolet light, wavelength are 0.28 μm.
The alienation arsenic restores fermented liquid, and the volume ratio with ore waste water is 1:13.
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar for accounting for clear water amount 8%, Zhan Qingshui
The gypsum of amount 0.09% and the sawdust for accounting for clear water amount 2%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution inoculum alienation
Arsenic reducing bacteria, in the case where temperature is 7 DEG C, aerated fermentation 9 days.
Embodiment 3
A method of extracting arsenic, method from ore waste water are as follows: pretreating agent is added in ore waste water and is stirred
0.5h, speed of agitator 60r/min are mixed, after standing 3h, by it through ultraviolet irradiation 16min, 48 DEG C is warming up to, alienation is added
Arsenic restores fermented liquid, is sealed by fermentation 10 days, and filtering obtains solid content and filtrate.
The pretreating agent, the w/v with ore waste water are 1:7.
The pretreating agent, raw material is by weight are as follows: 8kg maize pulp, 5kg bagasse, 1.5kg peanut skin, 12kg shaddock
Sub- skin, 0.06kg sodium hyaluronate.
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are activated
Sodium hyaluronate is added in 23min, and maintaining temperature is maintenance 2 days at 9 DEG C, for use.
The ultraviolet light, wavelength are 0.3 μm.
The alienation arsenic restores fermented liquid, and the volume ratio with ore waste water is 1:13.
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar for accounting for clear water amount 10%, Zhan Qing
The gypsum of water 0.08% and the sawdust for accounting for clear water amount 1.8%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution inoculum
Alienation arsenic reducing bacteria, in the case where temperature is 4 DEG C, aerated fermentation 7 days.
Embodiment 4
A method of extracting arsenic, method from ore waste water are as follows: in ore waste water plus preprocessed dose is stirred
0.7h, speed of agitator 120r/min are mixed, after standing 3h, by it through ultraviolet irradiation 8min, 51 DEG C is warming up to, alienation is added
Arsenic restores fermented liquid, is sealed by fermentation 10 days, and filtering obtains solid content and filtrate.
The pretreating agent, the w/v with ore waste water are 1:8.
The pretreating agent, raw material is by weight are as follows: 5kg maize pulp, 5kg bagasse, 4kg parts of peanut skins, 8kg shaddock
Skin, 0.009kg sodium hyaluronate.
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are activated
Sodium hyaluronate is added in 50min, and maintaining temperature is maintenance 2 days at 16 DEG C, for use.
The ultraviolet light, wavelength are 0.19 μm.
The alienation arsenic restores fermented liquid, and the volume ratio with ore waste water is 1:10.
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar for accounting for clear water amount 7%, Zhan Qingshui
The gypsum of amount 0.07% and the sawdust for accounting for clear water amount 1.5%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution inoculum is different
Change arsenic reducing bacteria, in the case where temperature is 13 DEG C, aerated fermentation 8 days.
Embodiment 5
A method of extracting arsenic, method from ore waste water are as follows: pretreating agent is added in ore waste water and is stirred
0.8h, speed of agitator 100r/min are mixed, after standing 3.5h, by it through ultraviolet irradiation 12min, 47 DEG C is warming up to, is added
Alienation arsenic restores fermented liquid, is sealed by fermentation 10 days, and filtering obtains solid content and filtrate.
The pretreating agent, the w/v with ore waste water are 1:4.
The pretreating agent, raw material is by weight are as follows: 4kg maize pulp, 6kg bagasse, 1kg peanut skin, 69kg shaddock
Skin, 0.03kg sodium hyaluronate.
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are activated
Sodium hyaluronate is added in 45min, and maintaining temperature is maintenance 2 days at 13 DEG C, for use.
The ultraviolet light, wavelength are 0.3 μm.
The alienation arsenic restores fermented liquid, and the volume ratio with ore waste water is 1:9.
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar for accounting for clear water amount 8%, Zhan Qingshui
The gypsum of amount 0.12% and the sawdust for accounting for clear water amount 2.1%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution inoculum is different
Change arsenic reducing bacteria, in the case where temperature is 15 DEG C, aerated fermentation 6-9 days.
Embodiment 6
A method of extracting arsenic, method are as follows: preprocessed dose of progress is added in ore waste water from ore waste water
0.5h, speed of agitator 90r/min are stirred, after standing 3h, by it through ultraviolet irradiation 15min, 49 DEG C is warming up to, is added different
Change arsenic and restore fermented liquid, be sealed by fermentation 10 days, filtering obtains solid content and filtrate.
The pretreating agent, the w/v with ore waste water are 1:6.
The pretreating agent, raw material is by weight are as follows: 5kg maize pulp, 5kg bagasse, 3kg peanut skin, 13kg shaddock
Skin, 0.05kg sodium hyaluronate.
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are activated
Sodium hyaluronate is added in 38min, and maintaining temperature is maintenance 2 days at 12 DEG C, for use.
The ultraviolet light, wavelength are 0.25 μm.
The alienation arsenic restores fermented liquid, and the volume ratio with ore waste water is 1:12.
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar for accounting for clear water amount 6%, Zhan Qingshui
The gypsum of amount 0.01% and the sawdust for accounting for clear water amount 1.5%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution inoculum is different
Change arsenic reducing bacteria, in the case where temperature is 8 DEG C, aerated fermentation 7 days.
Claims (4)
1. a kind of method for extracting arsenic from ore waste water, which is characterized in that its method are as follows: pretreatment is added in ore waste water
Agent is stirred 0.5-1h, speed of agitator 60-120r/min, after standing 3-4h, by it through ultraviolet irradiation 10-15min, by it
It is warming up to 43-50 DEG C, alienation arsenic is added and restores fermented liquid, is sealed by fermentation 10 days, filtering obtains solid content and filtrate；
The pretreating agent, raw material is by weight are as follows: 3-7 parts of maize pulps, 5-7 parts of bagasses, 1-3 parts of peanut skins, 6-13
Part pomelo peel, 0.01-0.05 parts of sodium hyaluronates；
The pretreating agent the preparation method comprises the following steps: maize pulp, bagasse, peanut skin, pomelo peel are carried out activation processing 20-50min,
Sodium hyaluronate is added, maintains temperature under the conditions of 10-16 DEG C, maintenance 1-2 days, for use；
The alienation arsenic restores fermented liquid, preparation method are as follows: by clear water, the brown sugar that accounts for clear water amount 6-8%, accounts for clear water amount
The gypsum of 0.08-0.12% and the sawdust for accounting for clear water amount 1-2%, which are uniformly mixed, is made culture solution, then presses 107Cfu/L solution inoculum
Alienation arsenic reducing bacteria, under the conditions of 5-13 DEG C of temperature, aerated fermentation 6-9 days.
2. the method for arsenic is extracted from ore waste water as described in claim 1, which is characterized in that the pretreating agent,
W/v with ore waste water is 1:5-7.
3. the method for arsenic is extracted from ore waste water as described in claim 1, which is characterized in that the ultraviolet irradiation,
Wavelength is 0.2-0.3 μm.
4. the method for arsenic is extracted from ore waste water as described in claim 1, which is characterized in that the alienation arsenic reducing bacteria
Fermentation liquid, the volume ratio with ore waste water are 1:8-13.
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Citations (4)
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| CN101531976A (en) * | 2009-04-21 | 2009-09-16 | 中山大学 | Citrobacter sp. strain DBM and method for treating acid mine drainage (AMD) using same |
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| CN101899570A (en) * | 2010-07-27 | 2010-12-01 | 中国科学院过程工程研究所 | Preoxidation treating method for leaching arsenic golden ores by using drum type reactor organisms |
| CN102329957A (en) * | 2011-09-09 | 2012-01-25 | 西南科技大学 | Method for continuously leaching sulfide ore by using synergy of autotrophic ore leaching bacteria and heterotrophic ore leaching bacteria |
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2015
- 2015-09-08 CN CN201510565821.4A patent/CN106495389B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531976A (en) * | 2009-04-21 | 2009-09-16 | 中山大学 | Citrobacter sp. strain DBM and method for treating acid mine drainage (AMD) using same |
| CN101792728A (en) * | 2010-04-01 | 2010-08-04 | 中国科学院微生物研究所 | Method for leaching metal from metallic ores and special strain in same |
| CN101899570A (en) * | 2010-07-27 | 2010-12-01 | 中国科学院过程工程研究所 | Preoxidation treating method for leaching arsenic golden ores by using drum type reactor organisms |
| CN102329957A (en) * | 2011-09-09 | 2012-01-25 | 西南科技大学 | Method for continuously leaching sulfide ore by using synergy of autotrophic ore leaching bacteria and heterotrophic ore leaching bacteria |
Non-Patent Citations (1)
| Title |
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