CN107686189A - A kind of flotation tungsten ore mine tailing wastewater processing method - Google Patents
A kind of flotation tungsten ore mine tailing wastewater processing method Download PDFInfo
- Publication number
- CN107686189A CN107686189A CN201710783331.0A CN201710783331A CN107686189A CN 107686189 A CN107686189 A CN 107686189A CN 201710783331 A CN201710783331 A CN 201710783331A CN 107686189 A CN107686189 A CN 107686189A
- Authority
- CN
- China
- Prior art keywords
- tungsten ore
- waste water
- flotation
- beneficiation wastewater
- ore beneficiation
- 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.)
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Classifications
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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
-
- 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
-
- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
Abstract
The present invention relates to a kind of flotation tungsten ore beneficiation wastewater treatment method, its step are as follows：Nacl is added into flotation tungsten ore beneficiation wastewater take off surely, obtain after taking off steady waste water, add appropriate aluminium polychloride and heavy metal collector removes remaining sodium metasilicate, heavy metal, organic matter, be eventually adding after polyphenyl acrylamide is well mixed and stand, water is purified after natural subsidence.For method provided by the invention to the clearance of sodium metasilicate more than 95%, SS clearances are more than 95%, and COD clearances are more than 85%, stable effluent quality, and GB8978 1996 is fully achieved《Integrated wastewater discharge standard》, so as to realize the qualified discharge of waste water.The method treatment effect of the present invention is stable, and simple to operate, cost is low, suitably promotes the use of.
Description
Technical field
The invention belongs to field of industrial waste water treatment, and in particular to a kind of flotation tungsten ore beneficiation wastewater treatment method.
Background technology
Nonferrous metals ore can add substantial amounts of floating agent in ore dressing process, in order to effectively improve yield, if right
These waste water direct reuses, large effect can be produced to ore dressing process, mineral processing index.Beneficiation wastewater water quality with ore species and
It is different, mainly contain heavy metal ion and beneficiation reagent.Environment can seriously be polluted by discharging such waste water without processing, endanger aquatic products,
Plant and health, it is therefore necessary to handle beneficiation wastewater.Most tungsten ores with the addition of in floatation process to be had
Significantly inhibit the sodium metasilicate of effect so that containing the suspension for being largely difficult to settle in beneficiation wastewater, there is the physico of colloid
Learn characteristic.But because colloid is multiphase disperse system again, possess larger interphase interface and huge free energy, its minuteness particle tends to
In be combineding with each other as coarse grain aggregation, thus with polymerization unstability.Waste water as processing can be used by acid adding, added
Alkali strengthens electrolyte, the suspension in waste water is freed from stable state.
In the prior art at present, most of tungsten ore mine is big by adding first during Beneficiation Wastewater
The quick lime of amount carries out de- steady, although settling most of mine tailing, on the one hand handles water pH values up to more than 12,
And wherein containing excessive Ca2+Ion, adsorb and activate gangue mineral, a large amount of collecting agents are consumed in floatation process, return to conduct
Mill water is suppressed white tungsten flotation；On the other hand hydrochloric acid must not be not added with wastewater treatment end or sulfuric acid carries out PH and returned
Adjust, cause operating environment difference and cost for wastewater treatment is higher.
The content of the invention
Invention technical problems to be solved：Processing for flotation tungsten ore beneficiation wastewater in the prior art is tired in the presence of processing
The a series of problem such as difficulty, outer row's processing cost height, the purpose of the present invention be to provide it is a kind of to flotation tungsten ore beneficiation wastewater
Effect of settling is good, water quality is reached the method for discharge standard.Method provided by the invention to the clearance of sodium metasilicate 95% with
On, for SS clearances more than 95%, more than 85% stable effluent quality, GB8978-1996 is fully achieved in COD clearances《Sewage
Comprehensive discharge standard》, so as to realize the qualified discharge of waste water.The method treatment effect of the present invention is stable, simple to operate, cost
It is low, suitably promote the use of.
To solve the above problems, technical scheme provided by the invention is：
A kind of flotation tungsten ore beneficiation wastewater treatment method, comprises the following steps：
(1) add coagulant into beneficiation wastewater, after stirring reaction 10min, obtain taking off steady waste water；Described coagulant is industry
Salt, Nacl add after need to being configured to 5-10wt% solution, and the silicate ion concentration after taking off surely is 500~900mg/m3；
(2) aluminium polychloride and heavy metal collector are sequentially added into the waste water after taking off surely, makes flotation tungsten ore beneficiation wastewater
Middle polyaluminium aluminum concentration reaches 100~500g/m3, heavy metal collector concentration reaches 2~8g/m3, it is well mixed, stirring 3
~10min；
(3) waste water adds the anionic polyphenyl acrylamide that molecular weight is 50~20,000,000, makes flotation after removing removing heavy metals
Polyphenyl acrylamide concentration reaches 2~6g/m in tungsten mine waste water3, coarse granule floc sedimentation, natural subsidence 1 are obtained after stirring
~5min, obtain the purified water for meeting discharge standard.
The present invention compared with prior art, has advantages below：
1) present invention has abandoned traditional lime and takes off steady technique, solves with preparing the dust problem brought during lime white, and
The problem of waste residue increase that lime insoluble matter is brought.
2）The present invention need not subsequently be entered using the de- pH value that can surely reduce waste water of Nacl with acid to the PH of waste water
Row adjustment, directly reduces cost, shortens process procedure, improve operating environment.
3）The Nacl source that the present invention uses is wide, cheap, will not cause secondary pollution to environment.
Embodiment
With reference to embodiment, the present invention is further described, but is not restricted by the embodiments.
Embodiment 1
The calcium chloride solution that mass concentration is 10%, stirring reaction are added into flotation tungsten ore mine tailing wastewater (composition is as shown in table 1)
After 10min, it is 525mg/m to obtain silicate ion concentration3De- steady waste water；200g/m is sequentially added into the waste water after taking off surely3
Aluminium polychloride and 3g/m3Heavy metal collector, stirring reaction 5min；3g/m is added into waste water3Molecular weight be 1000
Ten thousand anionic polyphenyl acrylamide, coarse granule floc sedimentation, natural subsidence 2min, obtained supernatant sampling are obtained after stirring
Test result is as shown in table 1；
The flotation tungsten ore beneficiation wastewater of table 1 and processed waste water testing result (unit mg/L, pH are dimensionless)
Embodiment 2
The calcium chloride that mass concentration is 10% is added into flotation tungsten ore mine tailing wastewater (composition is as shown in table 2) to mix with iron chloride
Solution, after stirring reaction 10min, it is 635mg/m to obtain silicate ion concentration3De- steady waste water；Into the waste water after taking off surely
Sequentially add 300g/m3Aluminium polychloride and 5g/m3Heavy metal collector, stirring reaction 3min；5g/ is added into waste water
m3Molecular weight be 8,000,000 anionic polyphenyl acrylamide, obtain coarse granule floc sedimentation after stirring, natural subsidence 3min,
Obtained supernatant sample test results are as shown in table 2；
The flotation tungsten ore beneficiation wastewater of table 2 and processed waste water testing result (unit mg/L, pH are dimensionless)
| Index water sample | PH | SS | SiO3 2- | COD | Cu | Pb | Zn | Cd | As | Hg |
| Mine tailing wastewater | 9.6 | 1098 | 3200 | 385 | 0.012. | 3.36 | 3.21 | 3.08 | 1.13 | 0.001 |
| Processed waste water | 7.7 | 87 | 155 | 86 | 0.031 | 0.023 | 0.53 | 0.38 | 0.085 | 0.001 |
Above to the present invention and embodiments thereof be described, this describe it is no restricted, if this area is common
Technical staff is enlightened by it, in the case where not departing from the feelings of the invention objective, without designing and the technical method for creativeness
With similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (5)
1. a kind of flotation tungsten ore beneficiation wastewater treatment method, it is characterized in that：Comprise the following steps：
A, it is de- steady that Nacl is added into flotation tungsten ore beneficiation wastewater, after stirring 10min, obtains taking off steady waste water；
B, the de- steady waste water into step A sequentially adds aluminium polychloride and heavy metal collector, selects described flotation tungsten ore
Polyaluminium aluminum concentration reaches 100~500g/m in ore deposit waste water3, heavy metal collector concentration reaches 2~8g/m3, mixing is
It is even, stir 3~10min；
C, polyphenyl acrylamide is added in the waste water into step B, obtains coarse granule floc sedimentation after stirring, natural subsidence 1~
5min, obtain the purified water for meeting discharge standard.
2. the flotation tungsten ore beneficiation wastewater treatment method as described in claim 1, it is characterised in that described Tungsten tailing waste water
Mainly comprising fatty acid medicament, sodium metasilicate, sodium carbonate, pH values are 10~11；Wherein, sodium silicate silicate be 2.0~
3.8kg/m3。
3. the flotation tungsten ore beneficiation wastewater treatment method as described in claim 1, it is characterised in that described Nacl is chlorine
Changing calcium, magnesium chloride, iron chloride etc. has the salt of de- stability matter, for the purpose of the present invention, described Nacl can be it is a kind of or
The mixture of several salt.
4. the flotation tungsten ore beneficiation wastewater treatment method as described in claim 1, it is characterised in that silicate after de- steady from
Sub- concentration is 500~900mg/m3。
5. flotation tungsten ore beneficiation wastewater treatment method as claimed in claim 1, it is characterised in that polyphenyl acrylamide for it is cloudy from
Subtype flocculant, the concentration of its molecular weight polyphenyl acrylamide in 50~20,000,000, flotation tungsten ore beneficiation wastewater is 2~6g/m3。
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| CN201710783331.0A CN107686189A (en) | 2017-09-04 | 2017-09-04 | A kind of flotation tungsten ore mine tailing wastewater processing method |
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| CN201710783331.0A CN107686189A (en) | 2017-09-04 | 2017-09-04 | A kind of flotation tungsten ore mine tailing wastewater processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114308402A (en) * | 2022-01-14 | 2022-04-12 | 湖南新田岭钨业有限公司 | Flocculation sedimentation process for flotation tungsten ore tailings |
Citations (6)
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|---|---|---|---|---|
| US4507209A (en) * | 1983-12-16 | 1985-03-26 | Suncor, Inc. | Destabilization of sludge with hydrolyzed yam starch flocculants |
| CN1686870A (en) * | 2005-03-31 | 2005-10-26 | 苏州市环境工程有限责任公司 | Technique for processing reclamation of industrial wastewater from printing electronic circuit board |
| CN103130314A (en) * | 2013-03-27 | 2013-06-05 | 北京矿冶研究总院 | Destabilization medicament for treating fracturing flowback fluid |
| CN104230049A (en) * | 2014-09-01 | 2014-12-24 | 上海希瑞歌恩环境技术有限公司 | Wastewater treatment method in photovoltaic industry |
| CN104261531A (en) * | 2014-09-26 | 2015-01-07 | 湖南有色新田岭钨业有限公司 | Process for ore dressing of scheelite by using scheelite tailing wastewater |
| CN104445749A (en) * | 2014-12-25 | 2015-03-25 | 湖南水口山有色金属集团有限公司 | Mineral processing tailing wastewater treatment method |
-
2017
- 2017-09-04 CN CN201710783331.0A patent/CN107686189A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507209A (en) * | 1983-12-16 | 1985-03-26 | Suncor, Inc. | Destabilization of sludge with hydrolyzed yam starch flocculants |
| CN1686870A (en) * | 2005-03-31 | 2005-10-26 | 苏州市环境工程有限责任公司 | Technique for processing reclamation of industrial wastewater from printing electronic circuit board |
| CN103130314A (en) * | 2013-03-27 | 2013-06-05 | 北京矿冶研究总院 | Destabilization medicament for treating fracturing flowback fluid |
| CN104230049A (en) * | 2014-09-01 | 2014-12-24 | 上海希瑞歌恩环境技术有限公司 | Wastewater treatment method in photovoltaic industry |
| CN104261531A (en) * | 2014-09-26 | 2015-01-07 | 湖南有色新田岭钨业有限公司 | Process for ore dressing of scheelite by using scheelite tailing wastewater |
| CN104445749A (en) * | 2014-12-25 | 2015-03-25 | 湖南水口山有色金属集团有限公司 | Mineral processing tailing wastewater treatment method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114308402A (en) * | 2022-01-14 | 2022-04-12 | 湖南新田岭钨业有限公司 | Flocculation sedimentation process for flotation tungsten ore tailings |
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