CN113772799A - Efficient heavy metal capture agent - Google Patents
Efficient heavy metal capture agent Download PDFInfo
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- CN113772799A CN113772799A CN202111084385.0A CN202111084385A CN113772799A CN 113772799 A CN113772799 A CN 113772799A CN 202111084385 A CN202111084385 A CN 202111084385A CN 113772799 A CN113772799 A CN 113772799A
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- surfactant
- ammonium
- flocculant
- capture agent
- 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.)
- Pending
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 41
- 239000004094 surface-active agent Substances 0.000 claims abstract description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 150000007524 organic acids Chemical class 0.000 claims abstract description 6
- 229910052979 sodium sulfide Inorganic materials 0.000 claims abstract description 6
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 239000002516 radical scavenger Substances 0.000 claims description 4
- BTBJBAZGXNKLQC-UHFFFAOYSA-N ammonium lauryl sulfate Chemical compound [NH4+].CCCCCCCCCCCCOS([O-])(=O)=O BTBJBAZGXNKLQC-UHFFFAOYSA-N 0.000 claims description 2
- 229940063953 ammonium lauryl sulfate Drugs 0.000 claims description 2
- 229920005550 ammonium lignosulfonate Polymers 0.000 claims description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 2
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 239000008394 flocculating agent Substances 0.000 abstract description 4
- 230000016615 flocculation Effects 0.000 abstract description 3
- 238000005189 flocculation Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000010814 metallic waste Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000004530 micro-emulsion Substances 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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)
- Removal Of Specific Substances (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to the technical field of heavy metal wastewater treatment, and particularly relates to a high-efficiency heavy metal capture agent which comprises the following components in percentage by mass: 5-20 wt% of sodium sulfide, 0.01-5 wt% of flocculant, 0.01-10 wt% of surfactant and the balance of deionized water, wherein the surfactant is a mixture of an isomeric alcohol ether surfactant and an organic acid ammonium surfactant in a mass ratio of 1:9-9: 1. The invention adopts the combination of the flocculating agent and the specific surfactant, so that a microemulsion system is formed in the process of capturing heavy metals by the formula product; the heavy metal dissolving capacity of the system is increased, the flocculation and precipitation efficiency is improved, more kinds of heavy metal waste liquid can be handled, and the purpose that the international emission standard can be reached by one-time treatment is realized.
Description
Technical Field
The invention relates to the technical field of heavy metal wastewater treatment, and particularly relates to an efficient heavy metal capture agent.
Background
The heavy metal wastewater is wastewater containing heavy metals discharged in the industrial production processes of mining and metallurgy, mechanical manufacturing, chemical industry, electronics, instruments and the like. Heavy metal (such as cadmium, nickel, mercury, zinc and the like) waste water is one of industrial waste water which has the most serious environmental pollution and the most serious harm to human, and the water quality and the water quantity of the waste water are related to a production process. Heavy metals in wastewater generally cannot be decomposed and destroyed, and only can be transferred to the existing position and converted into the physical and chemical forms. For the industrial enterprises, how to reduce the content of heavy metals in wastewater to reach the international discharge standard is the biggest problem.
In the prior art, various heavy metals cannot be effectively treated, and certain elements are reduced but cannot reach the emission standard, so that the treatment steps are increased, the operation difficulty is increased, and more cost is consumed.
Therefore, the present invention provides a novel heavy metal scavenger formulation to solve the above problems.
Disclosure of Invention
The invention mainly aims to provide an efficient heavy metal capture agent which can efficiently remove more heavy metal elements and save the treatment cost.
The invention realizes the purpose through the following technical scheme: the efficient heavy metal catching agent consists of the following components in percentage by mass: 5-20 wt% of sodium sulfide, 0.01-5 wt% of flocculant, 0.01-10 wt% of surfactant and the balance of deionized water, wherein the surfactant is a mixture of an isomeric alcohol ether surfactant and an organic acid ammonium surfactant in a mass ratio of 1:9-9: 1.
Specifically, the flocculant at least contains one of PAC or PAM.
Specifically, the isomeric alcohol ether surfactant is one of XP-50, XP-70, XP-90, XL-70 or XL-80.
Specifically, the organic acid ammonium surfactant is one of fatty alcohol polyoxyethylene ether ammonium sulfate, ammonium lauryl sulfate, ammonium lignosulfonate and ammonium n-caprylate.
The high-efficiency heavy metal catching agent has the beneficial effects that:
the invention adopts the combination of the flocculating agent and the specific surfactant, so that a microemulsion system is formed in the process of capturing heavy metals by the formula product; the heavy metal dissolving capacity of the system is increased, the flocculation and precipitation efficiency is improved, more kinds of heavy metal waste liquid can be handled, and the purpose that the international emission standard can be reached by one-time treatment is realized.
Detailed Description
The efficient heavy metal catching agent consists of the following components in percentage by mass: 5-20 wt% of sodium sulfide, 0.01-5 wt% of flocculant, 0.01-10 wt% of surfactant and the balance of deionized water, wherein the surfactant is an isomeric alcohol ether surfactant and an organic acid ammonium surfactant in a ratio of 1:9-9:1 mass ratio of the mixture.
The invention innovatively combines the flocculating agent with the specific surfactant, so that a microemulsion system is formed in the process of capturing heavy metals by the formula product; the heavy metal dissolving capacity of the system is increased, the flocculation and precipitation efficiency is improved, sodium sulfide can be uniformly dispersed in the wastewater, the contact area between the sodium sulfide and the wastewater can be increased, heavy metals can be better captured, and then the generated insoluble matters can be quickly flocculated by the flocculating agent to be precipitated.
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Examples 1 to 8:
the highly effective heavy metal scavengers of examples 1-8 were prepared by mixing according to the formulation of table 1:
table 1: unit: wt.%
Note:
the part of the content less than 100 wt% is made up by deionized water.
② XP-50, XP-70, XP-90, XL-70 and XL-80 isomeric alcohol ether surfactants mentioned in Table 1 are all provided by BASF corporation.
A comparative experiment was conducted with the heavy metal-capturing agents of examples 1 to 8, using the heavy metal-capturing agent disclosed in CN106986432B as a control example. The experimental method is that the heavy metal capture agents of the control example and the examples 1 to 8 are respectively added into the test solution of residual heavy metals in an excessive amount, and the residual content of the heavy metals is detected after the heavy metal capture agents are mixed for 10 minutes. The heavy metal content in the test solution is shown in row 2 of Table 2, and the treated heavy metal content is shown in rows 3 to 11 of Table 2.
Table 2:
as can be seen from Table 2, the heavy metal scavengers of examples 1 to 8 can remove not only mercury, cadmium, lead, nickel and silver relatively completely, but also chromium and arsenic very well. Therefore, the heavy metal catching agent can be used for dealing with more kinds of heavy metal waste liquid, and the aim of reaching the international discharge standard by one-time treatment is fulfilled.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (4)
1. The efficient heavy metal capturing agent is characterized by comprising the following components in percentage by mass: 5-20 wt% of sodium sulfide, 0.01-5 wt% of flocculant, 0.01-10 wt% of surfactant and the balance of deionized water, wherein the surfactant is a mixture of an isomeric alcohol ether surfactant and an organic acid ammonium surfactant in a mass ratio of 1:9-9: 1.
2. The highly effective heavy metal scavenger according to claim 1, wherein: the flocculant at least contains one of PAC or PAM.
3. The highly effective heavy metal scavenger according to claim 1, wherein: the isomeric alcohol ether surfactant is one of XP-50, XP-70, XP-90, XL-70 or XL-80.
4. The highly effective heavy metal scavenger according to claim 1, wherein: the organic acid ammonium surfactant is one of fatty alcohol polyoxyethylene ether ammonium sulfate, ammonium lauryl sulfate, ammonium lignosulfonate and ammonium n-caprylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111084385.0A CN113772799A (en) | 2021-09-16 | 2021-09-16 | Efficient heavy metal capture agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111084385.0A CN113772799A (en) | 2021-09-16 | 2021-09-16 | Efficient heavy metal capture agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113772799A true CN113772799A (en) | 2021-12-10 |
Family
ID=78844350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111084385.0A Pending CN113772799A (en) | 2021-09-16 | 2021-09-16 | Efficient heavy metal capture agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113772799A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368779A (en) * | 1992-12-28 | 1994-11-29 | Little Chemical Company | Detergent with cleaning and waste water treating capabilities containing polyacrylate and dimethylthiocarbamate |
| JPH08218056A (en) * | 1995-02-13 | 1996-08-27 | Nippon Shokubai Co Ltd | Collection of heavy metal |
| CN103482750A (en) * | 2013-09-10 | 2014-01-01 | 浙江省环境保护科学设计研究院 | Composite reagent for deep removal of heavy metals in wastewater and preparation method thereof |
| CN103524757A (en) * | 2012-07-04 | 2014-01-22 | 中国中化股份有限公司 | Preparation method of hydroxamic acid modified polyacrylamide emulsion flocculant |
| CN205676301U (en) * | 2015-11-27 | 2016-11-09 | 昆山市千灯三废净化有限公司 | A kind of device of the integrated treatment of nitric acid spent solder stripper |
| CN107188361A (en) * | 2017-06-16 | 2017-09-22 | 中南大学 | A kind of method for being sustained vulcanizing agent and preparation method thereof and sustained release vulcanizing agent for purifying heavy metal and arsenic in acid solution |
| CN107364985A (en) * | 2016-05-13 | 2017-11-21 | 禾华环保科技（上海）有限公司 | A kind of method of complexation heavy metal ion in removal water body |
| CN108315003A (en) * | 2017-01-17 | 2018-07-24 | 中国石油化工股份有限公司 | Polyacrylamide microballoon in-depth profile control and its preparation method and application |
| CN109911997A (en) * | 2019-02-22 | 2019-06-21 | 镇江仁德新能源科技有限公司 | A kind of black silicon silver-containing waste water treatment additive and processing method |
| CN110655154A (en) * | 2019-09-25 | 2020-01-07 | 浙江工业大学 | Compound heavy metal trapping agent and application thereof |
-
2021
- 2021-09-16 CN CN202111084385.0A patent/CN113772799A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368779A (en) * | 1992-12-28 | 1994-11-29 | Little Chemical Company | Detergent with cleaning and waste water treating capabilities containing polyacrylate and dimethylthiocarbamate |
| JPH08218056A (en) * | 1995-02-13 | 1996-08-27 | Nippon Shokubai Co Ltd | Collection of heavy metal |
| CN103524757A (en) * | 2012-07-04 | 2014-01-22 | 中国中化股份有限公司 | Preparation method of hydroxamic acid modified polyacrylamide emulsion flocculant |
| CN103482750A (en) * | 2013-09-10 | 2014-01-01 | 浙江省环境保护科学设计研究院 | Composite reagent for deep removal of heavy metals in wastewater and preparation method thereof |
| CN205676301U (en) * | 2015-11-27 | 2016-11-09 | 昆山市千灯三废净化有限公司 | A kind of device of the integrated treatment of nitric acid spent solder stripper |
| CN107364985A (en) * | 2016-05-13 | 2017-11-21 | 禾华环保科技（上海）有限公司 | A kind of method of complexation heavy metal ion in removal water body |
| CN108315003A (en) * | 2017-01-17 | 2018-07-24 | 中国石油化工股份有限公司 | Polyacrylamide microballoon in-depth profile control and its preparation method and application |
| CN107188361A (en) * | 2017-06-16 | 2017-09-22 | 中南大学 | A kind of method for being sustained vulcanizing agent and preparation method thereof and sustained release vulcanizing agent for purifying heavy metal and arsenic in acid solution |
| CN109911997A (en) * | 2019-02-22 | 2019-06-21 | 镇江仁德新能源科技有限公司 | A kind of black silicon silver-containing waste water treatment additive and processing method |
| CN110655154A (en) * | 2019-09-25 | 2020-01-07 | 浙江工业大学 | Compound heavy metal trapping agent and application thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211210 |
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| RJ01 | Rejection of invention patent application after publication |