CN106830435B - A kind of mercurous sewage water treatment method - Google Patents
A kind of mercurous sewage water treatment method Download PDFInfo
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- CN106830435B CN106830435B CN201710137569.6A CN201710137569A CN106830435B CN 106830435 B CN106830435 B CN 106830435B CN 201710137569 A CN201710137569 A CN 201710137569A CN 106830435 B CN106830435 B CN 106830435B
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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
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
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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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical 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
- 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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to heavy metal-polluted water-treatment technology fields, and in particular to a kind of mercurous sewage water treatment method.Specifically includes the following steps: (1) is first handled mercurous sewage water filtration, absorption 1-3h is carried out using ion exchange resin;(2) pH containing Mercury sewage is then adjusted to 8.3-8.5, composite flocculation agent is then added wherein, keeps 1-2h after mixing evenly;It (3) will treated is precipitated and filtered containing Mercury sewage;(4) two stage treatment agent is added containing Mercury sewage to filtered;(5) mixture containing addition bodied ferric sulfate and polyaluminium sulfate in Mercury sewage after treatment;(6) water up to standard is obtained after finally filtering.This method has the advantages that simple process efficiency is relatively high, can reach < chlor-alkali industry the standard of 5ppb after treatment.
Description
Technical field
The present invention relates to heavy metal-polluted water-treatment technology fields, and in particular to a kind of mercurous sewage water treatment method.
Background technique
Heavy metal original meaning refers to metal (density be greater than 4.5 gram per cubic centimeter metals) of the specific gravity greater than 5, including gold,
Silver, copper, iron, lead etc..Heavy metal pollution is different from the pollution of other organic compounds.Many organic compounds can pass through nature
Boundary physics itself, chemical or biological purification makes harmfulness reduce or release.And heavy metal has enriching, is difficult
It degrades in environment.At present China due in the exploitation, smelting, process of heavy metal, cause many heavy metals for example lead, mercury,
Cadmium, cobalt etc. enter big gas and water, soil causes serious environmental pollution.The heavy metal being such as discharged with waste water, even if concentration is small,
It can accumulate in algae and bed mud, be adsorbed by fish and shellfish body surface, food chain concentration be generated, to cause public hazards.
Mercury (Hg) is one of strongest heavy metal element of environment Poisoning.The minamata disease thing that Japan's the 1950s occurs
Part makes people be fully recognized that mercury, especially murder by poisoning of the methyl mercury (MeHg) to human body and animal.60-eighties of 20th century,
Scholars have made intensive studies the circulation Evolution of artificially-contaminated aquatic ecosystem mercury, and to MeHg to human body
The mechanism of murder by poisoning has carried out further investigated, obtains MeHg and can be enriched with by aquatic food web and amplified, in high nutrition grade biology
In highly enriched and MeHg can be hindered by human body blood and brain barrier generates the understanding of harm to the central nervous system of people.
Traditional mercury-containing waste water treatment method mainly has chemical precipitation method, metal deoxidization, active carbon adsorption, ion to hand over
Change method, electrolysis method and microbial method.Chemical precipitation method advantage: being the preferential selection of high concentration mercury ion wastewater treatment, and technology is held
Easily realize.Disadvantage: Low Concentration Mercury wastewater treatment is not thorough.Metal deoxidization can the single mercury-containing waste water of processes composition, reaction
Rate is high, but demercuration is incomplete.Active carbon adsorption has very high demercuration efficiency when mercury content is high, when mercury content is low under efficiency
Drop;Disadvantage: complicated for operation, at high cost, variation water quality easily leads to exceeded.Ion-exchange is influenced by impurities in water, at high cost.
Electrolysis method can handle up to standard, but cost of investment is high, power consumption is big, mercuryvapour easily generated causes secondary pollution.Microbial method is being tested
Vast potential for future development is presented in research, but still there are many problems to constrain its industrial applications.
Summary of the invention
The purpose of the invention is to be directed to the advantage and disadvantage of above-mentioned each processing method, a kind of mercurous sewage treatment side is provided
Method.This is a kind of preferably mercurous sewage water treatment method for the treatment of effect, and specially applicable concentration is lower, demercuration efficiency is relatively high,
Mercurous concentration is lower after final process, the relatively low mercurous sewage water treatment method of cost.
In order to achieve the above object of the invention, the invention adopts the following technical scheme:
A kind of mercurous sewage water treatment method, specifically includes the following steps:
(1) mercurous sewage water filtration is handled first, then every cubic metre of calcium hydroxide containing addition 20-50g in Mercury sewage,
Absorption 1-3h is carried out using ion exchange resin;
(2) pH containing Mercury sewage is then adjusted to 8.3-8.5, composite flocculation agent is then added wherein, stirs evenly
After keep 1-2h, the additional amount of composite flocculation agent is every cubic metre and 10-100g is added containing Mercury sewage, and composite flocculation agent is by weight
Number meter includes: 1-3 parts of potassium pyrophosphate, 10-12 parts of sodium carboxymethylcellulose, 5-8 parts of water soluble chitosan, polyacrylamide 15-
18 parts and sodium diethyldithiocarbamate 3-5 parts;
(3) will treated is precipitated and filtered containing Mercury sewage, sedimentation time 2-10h;
(4) pH is adjusted as 6.5-7 containing Mercury sewage to filtered, then 5-20g is added containing Mercury sewage for every cubic metre
Two stage treatment agent, keep 2-5h after mixing evenly, two stage treatment agent includes: 1-4 parts of sodium hypochlorite, second two according to parts by weight
3-5 parts of amine tetraacethyl, 8-10 parts of citric acid and 4-6 parts of fatty alcohol polyoxyethylene ether;
(5) mixture containing the 0.3-1:10 that bodied ferric sulfate and polyaluminium sulfate are added in Mercury sewage after treatment,
The additional amount of mixture is every cubic metre and 5-100g is added containing Mercury sewage;
(6) water up to standard is obtained after finally filtering.
For the additional amount of composite flocculation agent, appropriate adjustment is carried out with specific reference to the content of mercury, is handled when by step (1)
In sewage afterwards, when the content of mercury is greater than 0.8mg/L, the additional amount of composite flocculation agent is greater than 70g;
As a preferred option, the composite flocculation agent further includes 3-5 parts of four sodium of iminodisuccinic acid.
As a preferred option, the composite flocculation agent of the step (2) includes: 3 parts of potassium pyrophosphate, carboxylic according to parts by weight
10 parts of sodium carboxymethylcellulose pyce, 5 parts of water soluble chitosan, 15 parts of polyacrylamide and 3 parts of sodium diethyldithiocarbamate.
As a preferred option, the two stage treatment agent of the step (4) includes: 3 parts of sodium hypochlorite, second according to parts by weight
3 parts of ethylenediamine tetraacetic acid (EDTA), 10 parts of citric acid and 4 parts of fatty alcohol polyoxyethylene ether.
As a preferred option, the treatment temperature of the step (2) is 26-30 DEG C.
As a preferred option, first sub- containing sulfuric acid is added in Mercury sewage in every cubic metre of processing in the step (6)
Iron, after stirring 1h, then filtering obtains water up to standard with activated carbon adsorption.The additional amount of ferrous sulfate is 10-50g/L.
Compared with prior art, the present invention beneficial effect is:
1, this method is combined using multistep to handling containing Mercury sewage, wherein in step (3) treated sewage, always
The content of mercury can reach the standard of national composite wastewater discharge standard GB8978-1996, i.e., < 50ppb;In step (5) and
The sewage total mercury content finally handled can reach < the chlor-alkali industry standard of 5ppb;
2, the treatment process simple process of this method, equipment investment are lower;
3, the treatment effeciency of this method is relatively high, does not need more days precipitatings and other processing, processing is greatly saved
Ability;
4, the sewage finally obtained reduces the content of mercury, and main ingredient is the salt and organic being easily processed, just
It is handled again in subsequent.
5, this method carries out disposed of in its entirety for the comprehensive wastewater of organic mercury and inorganic mercury, adaptable.
Specific embodiment
Below by specific embodiment the technical scheme of the present invention will be further described explanation.
If raw material employed in the embodiment of the present invention is raw material commonly used in the art without specified otherwise, implement
Method employed in example, is the conventional method of this field.
Embodiment 1:
A kind of mercurous sewage water treatment method, specifically includes the following steps:
(1) mercurous sewage water filtration is handled first, then every cubic metre of calcium hydroxide containing addition 20g in Mercury sewage, is adopted
Spent ion exchange resin carries out absorption 1-3h;
(2) pH containing Mercury sewage is then adjusted to 8.5, composite flocculation agent is then added wherein, protects after mixing evenly
1-2h is held, the additional amount of composite flocculation agent is every cubic metre and 100g is added containing Mercury sewage, and composite flocculation agent wraps according to parts by weight
It includes: 1 part of potassium pyrophosphate, 11 parts of sodium carboxymethylcellulose, two sulphur of 8 parts of water soluble chitosan, 15 parts of polyacrylamide and diethyl
For 4 parts of carbamic acid sodium;
(3) will treated is precipitated and filtered containing Mercury sewage, sedimentation time 2-10h;
(4) to it is filtered containing Mercury sewage be adjusted pH be 7, then every cubic metre containing Mercury sewage be added 5g second level at
Agent is managed, keeps 2-5h after mixing evenly, two stage treatment agent includes: 3 parts of sodium hypochlorite, ethylenediamine tetra-acetic acid 5 according to parts by weight
Part, 8 parts of citric acid and 5 parts of fatty alcohol polyoxyethylene ether;
(5) mixture containing the 1:10 that bodied ferric sulfate and polyaluminium sulfate are added in Mercury sewage after treatment, mixing
The additional amount of object is every cubic metre and 5g is added containing Mercury sewage;
(6) water up to standard is obtained after finally filtering.
Embodiment 2:
A kind of mercurous sewage water treatment method, specifically includes the following steps:
(1) mercurous sewage water filtration is handled first, then every cubic metre of calcium hydroxide containing addition 30g in Mercury sewage, is adopted
Spent ion exchange resin carries out absorption 1-3h;
(2) pH containing Mercury sewage is then adjusted to 8.5, composite flocculation agent is then added wherein, protects after mixing evenly
1-2h is held, the additional amount of composite flocculation agent is every cubic metre and 10g is added containing Mercury sewage, and composite flocculation agent wraps according to parts by weight
It includes: 2 parts of potassium pyrophosphate, 12 parts of sodium carboxymethylcellulose, two sulphur of 5 parts of water soluble chitosan, 16 parts of polyacrylamide and diethyl
For 5 parts of carbamic acid sodium;Treatment temperature is 26-30 DEG C;
(3) will treated is precipitated and filtered containing Mercury sewage, sedimentation time 2-10h;
(4) to it is filtered containing Mercury sewage be adjusted pH be 6.5, then every cubic metre containing Mercury sewage be added 10g two
Grade inorganic agent, keeps 2-5h, two stage treatment agent includes: 4 parts of sodium hypochlorite, ethylenediamine tetrem according to parts by weight after mixing evenly
3 parts of acid, 9 parts of citric acid and 6 parts of fatty alcohol polyoxyethylene ether;
(5) mixture containing the 0.3:10 that bodied ferric sulfate and polyaluminium sulfate are added in Mercury sewage after treatment, is mixed
The additional amount for closing object is every cubic metre and 10g is added containing Mercury sewage;
(6) water up to standard is obtained after finally filtering.
Embodiment 3:
A kind of mercurous sewage water treatment method, specifically includes the following steps:
(1) mercurous sewage water filtration is handled first, then every cubic metre of calcium hydroxide containing addition 50g in Mercury sewage, is adopted
Spent ion exchange resin carries out absorption 1-3h;
(2) pH containing Mercury sewage is then adjusted to 8.3, composite flocculation agent is then added wherein, protects after mixing evenly
1-2h is held, the additional amount of composite flocculation agent is every cubic metre and 50g is added containing Mercury sewage, and composite flocculation agent wraps according to parts by weight
It includes: 3 parts of potassium pyrophosphate, sodium carboxymethylcellulose 10,6 parts of water soluble chitosan, 18 parts of polyacrylamide and diethyl-dithio
3 parts of carbamic acid sodium;Treatment temperature is 26-30 DEG C;
(3) will treated is precipitated and filtered containing Mercury sewage, sedimentation time 2-10h;
(4) to it is filtered containing Mercury sewage be adjusted pH be 6.7, then every cubic metre containing Mercury sewage be added 20g two
Grade inorganic agent, keeps 2-5h, two stage treatment agent includes: 1 part of sodium hypochlorite, ethylenediamine tetrem according to parts by weight after mixing evenly
4 parts of acid, 10 parts of citric acid and 4 parts of fatty alcohol polyoxyethylene ether;
(5) mixture containing the 0.5:10 that bodied ferric sulfate and polyaluminium sulfate are added in Mercury sewage after treatment, is mixed
The additional amount for closing object is every cubic metre and 5-100g is added containing Mercury sewage;
(6) water up to standard is obtained after finally filtering.
Embodiment 4:
A kind of mercurous sewage water treatment method, specifically includes the following steps:
(1) mercurous sewage water filtration is handled first, then every cubic metre of calcium hydroxide containing addition 25g in Mercury sewage, is adopted
Spent ion exchange resin carries out absorption 1-3h;
(2) pH containing Mercury sewage is then adjusted to 8.5, composite flocculation agent is then added wherein, protects after mixing evenly
1-2h is held, the additional amount of composite flocculation agent is every cubic metre and 30g is added containing Mercury sewage, and composite flocculation agent wraps according to parts by weight
It includes: 3 parts of potassium pyrophosphate, 10 parts of sodium carboxymethylcellulose, two sulphur of 5 parts of water soluble chitosan, 15 parts of polyacrylamide and diethyl
For 3 parts of carbamic acid sodium;Treatment temperature is 26-30 DEG C;
(3) will treated is precipitated and filtered containing Mercury sewage, sedimentation time 2-10h;
(4) pH is adjusted as 6.5-7 containing Mercury sewage to filtered, then 5-20g is added containing Mercury sewage for every cubic metre
Two stage treatment agent, keep 2-5h after mixing evenly, two stage treatment agent includes: 3 parts of sodium hypochlorite, ethylenediamine according to parts by weight
3 parts of tetraacethyl, 10 parts of citric acid and 4 parts of fatty alcohol polyoxyethylene ether;
(5) mixture containing the 0.2:10 that bodied ferric sulfate and polyaluminium sulfate are added in Mercury sewage after treatment, is mixed
The additional amount for closing object is every cubic metre and 20g is added containing Mercury sewage;
(6) water up to standard is obtained after finally filtering.
Embodiment 5:
On the basis of examples 1 to 4, its composite flocculation agent is improved, composite flocculation agent further includes imino-diacetic amber
Amber 3 parts of four sodium of acid.
Embodiment 6:
On the basis of examples 1 to 4, its composite flocculation agent is improved, composite flocculation agent further includes imino-diacetic amber
Amber 5 parts of four sodium of acid.
Embodiment 7:
Subsequent improvement is carried out on the basis of embodiment 1-6, specially in step (6) first in every cubic metre of processing
Containing ferrous sulfate is added in Mercury sewage, after stirring 1h, then filtering obtains water up to standard with activated carbon adsorption.
Various concentration is handled containing Mercury sewage using the method for above-described embodiment 1-7, the processing sewage finally obtained
Mercury concentration data it is as follows:
Step (3) treated mercury concentration | The mercury concentration of the sewage of step (6) final process | ||
Embodiment 1 | <50ppb | <5ppb | |
Embodiment 2 | <50ppb | <5ppb | |
Embodiment 3 | <50ppb | <5ppb | |
Embodiment 4 | <50ppb | <5ppb | |
Embodiment 5 | <50ppb | <5ppb | Step (2) handles time reduction 20%-30% |
Embodiment 6 | <50ppb | <5ppb | Step (2) handles time reduction 20%-30% |
Embodiment 7 | <50ppb | <5ppb | Reduce the concentration of the remaining reagent treatment after handling in water. |
Claims (3)
1. a kind of mercurous sewage water treatment method, which is characterized in that specifically includes the following steps:
(1) mercurous sewage water filtration is handled first, then every cubic metre of calcium hydroxide containing addition 20-50g in Mercury sewage, uses
Ion exchange resin carries out absorption 1-3h;
(2) pH containing Mercury sewage is then adjusted to 8.3-8.5, composite flocculation agent is then added wherein, protects after mixing evenly
1-2h is held, the additional amount of composite flocculation agent is every cubic metre and 10-100g is added containing Mercury sewage, and composite flocculation agent is according to parts by weight
Include: 1-3 parts of potassium pyrophosphate, 10-12 parts of sodium carboxymethylcellulose, 5-8 parts of water soluble chitosan, 15-18 parts of polyacrylamide,
3-5 parts of 3-5 parts of sodium diethyldithiocarbamate and four sodium of iminodisuccinic acid;
(3) will treated is precipitated and filtered containing Mercury sewage, sedimentation time 2-10h;
(4) pH is adjusted as 6.5-7 containing Mercury sewage to filtered, then the two of 5-20g is added containing Mercury sewage for every cubic metre
Grade inorganic agent, keeps 2-5h, two stage treatment agent includes: 1-4 parts of sodium hypochlorite, ethylenediamine tetraacetic according to parts by weight after mixing evenly
3-5 parts of acetic acid, 8-10 parts of citric acid and 4-6 parts of fatty alcohol polyoxyethylene ether;
(5) mixture containing the 0.3-1:10 that bodied ferric sulfate and polyaluminium sulfate are added in Mercury sewage after treatment, mixing
The additional amount of object is every cubic metre and 5-100g is added containing Mercury sewage;
(6) first ferrous sulfate is added in containing in every cubic metre of processing in Mercury sewage, and after stirring 1h, then active carbon is used in filtering
Absorption obtains water up to standard.
2. a kind of mercurous sewage water treatment method according to claim 1, which is characterized in that at the second level of the step (4)
Manage agent includes: 3 parts of sodium hypochlorite, 3 parts of ethylenediamine tetra-acetic acid, 10 parts of citric acid and fatty alcohol polyoxyethylene ether according to parts by weight
4 parts.
3. a kind of mercurous sewage water treatment method according to claim 1, which is characterized in that the processing temperature of the step (2)
Degree is 26-30 DEG C.
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CN108017126A (en) * | 2017-10-30 | 2018-05-11 | 周爱民 | A kind of improver of water quality used for aquiculture |
CN109205850A (en) * | 2018-10-25 | 2019-01-15 | 中科协创环境科技江苏有限公司 | A kind of processing unit handling mercurous waste liquid |
CN112321018A (en) * | 2020-10-29 | 2021-02-05 | 新晃鲁湘钡业有限公司 | Treatment method of mercury-containing wastewater |
CN113548831B (en) * | 2021-08-25 | 2022-05-24 | 邓锐 | Alkali-free liquid accelerator and preparation method thereof |
Citations (4)
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CN102030440A (en) * | 2010-11-30 | 2011-04-27 | 周光毅 | Mercury-polluted water treatment process |
CN102936070A (en) * | 2012-12-06 | 2013-02-20 | 赵建军 | Method for treating mercury-containing wastewater during PVC (Polyvinyle Chloride) production through two-step process |
CN104150634A (en) * | 2014-05-15 | 2014-11-19 | 浙江海洋学院 | Treatment method of water polluted by mercury |
CN106242111A (en) * | 2016-08-15 | 2016-12-21 | 吴小慧 | A kind of for processing the cleanser containing Mercury sewage and method of wastewater treatment |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102030440A (en) * | 2010-11-30 | 2011-04-27 | 周光毅 | Mercury-polluted water treatment process |
CN102936070A (en) * | 2012-12-06 | 2013-02-20 | 赵建军 | Method for treating mercury-containing wastewater during PVC (Polyvinyle Chloride) production through two-step process |
CN104150634A (en) * | 2014-05-15 | 2014-11-19 | 浙江海洋学院 | Treatment method of water polluted by mercury |
CN106242111A (en) * | 2016-08-15 | 2016-12-21 | 吴小慧 | A kind of for processing the cleanser containing Mercury sewage and method of wastewater treatment |
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