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CN106830435B - A kind of mercurous sewage water treatment method - Google Patents

A kind of mercurous sewage water treatment method Download PDF

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Publication number
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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CN
China
Prior art keywords
parts
sewage
added
mercury
mercurous
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Expired - Fee Related
Application number
CN201710137569.6A
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Chinese (zh)
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CN106830435A (en
Inventor
马占青
温淑瑶
谢萍华
吕伟德
何艺
俞卫阳
干雅平
戴阿玲
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Hangzhou Vocational and Technical College
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Hangzhou Vocational and Technical College
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Priority to CN201710137569.6A priority Critical patent/CN106830435B/en
Publication of CN106830435A publication Critical patent/CN106830435A/en
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Expired - Fee Related legal-status Critical Current
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5263Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

Landscapes

  • 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

A kind of mercurous sewage water treatment method
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.
CN201710137569.6A 2017-03-09 2017-03-09 A kind of mercurous sewage water treatment method Expired - Fee Related CN106830435B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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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