CN107244725A - A kind of heavy metal chelating agent - Google Patents
A kind of heavy metal chelating agent Download PDFInfo
- Publication number
- CN107244725A CN107244725A CN201710463313.4A CN201710463313A CN107244725A CN 107244725 A CN107244725 A CN 107244725A CN 201710463313 A CN201710463313 A CN 201710463313A CN 107244725 A CN107244725 A CN 107244725A
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- chelating agent
- metal chelating
- sodium
- adjuvant
- 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
- 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
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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)
- Removal Of Specific Substances (AREA)
Abstract
The present invention relates to provide a kind of heavy metal chelating agent, heavy metal chelating agent is made up of organic sulfur compound, sodium metasilicate, adjuvant, accelerator, pH adjusting agent, vulcanized sodium, deionized water, a kind of heavy metal chelating agent of the present invention can accomplish that contents of many kinds of heavy metal ion Coexistence Situation is handled next time after, you can meet the requirement of environmental protection；Heavy metal in waste water complex salt can also be played one's part to the full, and thick with flocculating, precipitation is fast, and post processing is easy, stablizes nontoxic, the features such as without secondary public hazards, can be widely used in various wastewater treatments.
Description
Technical field
The present invention relates to a kind of metal treatment art, and in particular to a kind of heavy metal chelating agent.
Background technology
China is shortage of water resources country, a large amount of waste water can be produced in the production, life activity in the mankind, for protection ring
Border, water pollution is avoided, utilize, save the purpose of limited water resource for Sewage treatment, major part waste water all can be through at present
Processing is crossed to be discharged or reuse up to standard.Many metal smelts, electronics industry, mining plants, garbage burning factory, printed circuit version system
The waste water containing plurality of heavy metal ion such as cadmium, chromium, copper, lead, mercury, nickel, silver, zinc etc. can be discharged in process of production by making factory etc.,
Such waste water using traditional materialization and biochemical process processing heavy metal clearance it is extremely low, waste water can not handle qualified discharge or
Reuse.Heavy metals removal method traditional at present is to use chemical precipitation method, common chemical precipitation method, is added in N-process
Enter the chemical precipitation agents such as sodium hydroxide or calcium hydroxide and carry out precipitation of heavy metals ion.But it is due to different heavy metal ion generations
Optimal pH when hydroxide is precipitated is different, and some heavy metal ion may be complexed with the formation of the ion of other in solution
Thing (adds its solubility in water), so treatment effect is often undesirable.In addition, heavy metal ion is in alkaline medium
The hydroxide precipitation of generation, one part can be redissolved in water with the reduction of pH value in discharge.So traditional
Chemical precipitation method processing waste water residual heavy metal concentration it is high, it is impossible to meet the requirement of environmental protection.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of heavy metal chelating agent, the heavy metal concentration of reduction waste water residual.
The present invention is achieved by the following technical solutions：A kind of heavy metal chelating agent is provided, heavy metal chelating agent is by having
Machine sulfide, sodium metasilicate, adjuvant, accelerator, pH adjusting agent, vulcanized sodium, deionized water composition, the percentage by weight of each component
For：Organic sulfur compound：10~15%, sodium metasilicate 10~20%, adjuvant：5~10%, accelerator：10~25%, pH is adjusted
Agent：10~20%, vulcanized sodium 10~20%, surplus are deionized water.
It is preferred that, the percentage by weight of each component is：Organic sulfur compound：10~15%, sodium metasilicate 15~20%, auxiliary
Agent：5~10%, accelerator：15~25%, pH adjusting agent：15~20%, vulcanized sodium 15~20%, surplus are deionized water.
It is preferred that, described organic sulfur compound is toluene isothiocyanate and/or Allifridin.
It is preferred that, the adjuvant is the one or more in polyacrylamide and vulcanized sodium.
It is preferred that, the adjuvant is the mixture that polyacrylamide and vulcanized sodium are constituted, and wherein polyacrylamide is accounted for
60-70%, vulcanized sodium accounts for 30-40%.
It is preferred that, the pH adjusting agent is one or both of sodium hydroxide, sodium carbonate.
It is preferred that, the accelerator is the mixture of dibutyl tin laurate, stannous octoate and CT-E229, wherein
Dibutyl tin laurate accounts for 20-37%, and stannous octoate accounts for 15-18%, and CT-E229 accounts for 45-65%.
A kind of heavy metal chelating agent of the present invention can accomplish that contents of many kinds of heavy metal ion Coexistence Situation is handled next time after,
Can meet the requirement of environmental protection；Heavy metal in waste water complex salt can also be played one's part to the full, and it is thick with flocculating, and precipitation is fast,
Post processing is easy, stablizes nontoxic, the features such as without secondary public hazards, can be widely used in various wastewater treatments.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, those skilled in the art can be by this specification institute
The content of exposure understands other advantages and effect of the present invention easily.The present invention can also pass through specific implementations different in addition
Mode is embodied or practiced, and the various details in this specification can also be based on different viewpoints and application, without departing from this
Various modifications or alterations are carried out under the spirit of invention.
The heavy metal chelating agent that the present invention is provided is by organic sulfur compound, sodium metasilicate, adjuvant, accelerator, pH adjusting agent, sulphur
Change sodium, deionized water composition, the percentage by weight of each component is：Organic sulfur compound：10~15%, sodium metasilicate 10~20%, auxiliary
Auxiliary agent：5~10%, accelerator：10~25%, pH adjusting agent：10~20%, vulcanized sodium 10~20%, surplus are deionized water.
Wherein, organic sulfur compound is toluene isothiocyanate and/or Allifridin, and adjuvant is polypropylene
One or more in acid amides and vulcanized sodium, adjuvant is the mixture that polyacrylamide and vulcanized sodium are constituted, wherein poly-
Acrylamide accounts for 60-70%, and vulcanized sodium accounts for 30-40%.
Meanwhile, pH adjusting agent is one or both of sodium hydroxide, sodium carbonate；Accelerator is di lauric dibutyl
The mixture of tin, stannous octoate and CT-E229, wherein dibutyl tin laurate account for 20-37%, and stannous octoate accounts for 15-
18%, CT-E229 account for 45-65%.
In summary, a kind of heavy metal chelating agent of the present invention can accomplish that contents of many kinds of heavy metal ion Coexistence Situation is next
After secondary processing, you can meet the requirement of environmental protection；Heavy metal in waste water complex salt can also be played one's part to the full, and it is thick with flocculation
Greatly, precipitate fast, post processing is easy, stablizes nontoxic, the features such as without secondary public hazards, can be widely used in various wastewater treatments.
Some preferred embodiments of the present invention have shown and described in described above, but as previously described, it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations,
Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in invention contemplated scope described herein
It is modified., then all should be in this hair and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In the protection domain of bright appended claims.
Claims (7)
1. a kind of heavy metal chelating agent, it is characterised in that heavy metal chelating agent is by organic sulfur compound, sodium metasilicate, adjuvant, promotion
Agent, pH adjusting agent, vulcanized sodium, deionized water are constituted, and the percentage by weight of each component is：Organic sulfur compound：10~15%, silicic acid
Sodium 10~20%, adjuvant：5~10%, accelerator：10~25%, pH adjusting agent：10~20%, vulcanized sodium 10~20%, remaining
Measure as deionized water.
2. heavy metal chelating agent according to claim 1, it is characterised in that the percentage by weight of each component is：Organic sulfur
Compound：10~15%, sodium metasilicate 15~20%, adjuvant：5~10%, accelerator：15~25%, pH adjusting agent：15~
20%th, vulcanized sodium 15~20%, surplus are deionized water.
3. heavy metal chelating agent according to claim 1, it is characterised in that described organic sulfur compound is the different sulphur cyanogen of toluene
Hydrochlorate and/or Allifridin.
4. heavy metal chelating agent according to claim 1, it is characterised in that the adjuvant is polyacrylamide and sulphur
Change the one or more in sodium.
5. heavy metal chelating agent according to claim 1, it is characterised in that the adjuvant is polyacrylamide and sulphur
Change the mixture that sodium is constituted, wherein polyacrylamide accounts for 60-70%, and vulcanized sodium accounts for 30-40%.
6. heavy metal chelating agent according to claim 1, it is characterised in that the pH adjusting agent is sodium hydroxide, carbonic acid
One or both of sodium.
7. heavy metal chelating agent according to claim 1, it is characterised in that the accelerator is di lauric dibutyl
The mixture of tin, stannous octoate and CT-E229, wherein dibutyl tin laurate account for 20-37%, and stannous octoate accounts for 15-
18%, CT-E229 account for 45-65%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463313.4A CN107244725A (en) | 2017-06-19 | 2017-06-19 | A kind of heavy metal chelating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463313.4A CN107244725A (en) | 2017-06-19 | 2017-06-19 | A kind of heavy metal chelating agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107244725A true CN107244725A (en) | 2017-10-13 |
Family
ID=60019481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710463313.4A Pending CN107244725A (en) | 2017-06-19 | 2017-06-19 | A kind of heavy metal chelating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107244725A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678238A (en) * | 2018-12-28 | 2019-04-26 | 新疆水处理工程技术研究中心有限公司 | A kind of heavy metal chelating agent and its preparation process |
| CN109721127A (en) * | 2019-01-31 | 2019-05-07 | 环境保护部华南环境科学研究所 | Heavy metal containing wastewater treatment agent |
| CN110302749A (en) * | 2019-05-16 | 2019-10-08 | 东莞理工学院 | A kind of modification biological charcoal and its preparation method and application |
-
2017
- 2017-06-19 CN CN201710463313.4A patent/CN107244725A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678238A (en) * | 2018-12-28 | 2019-04-26 | 新疆水处理工程技术研究中心有限公司 | A kind of heavy metal chelating agent and its preparation process |
| CN109721127A (en) * | 2019-01-31 | 2019-05-07 | 环境保护部华南环境科学研究所 | Heavy metal containing wastewater treatment agent |
| CN110302749A (en) * | 2019-05-16 | 2019-10-08 | 东莞理工学院 | A kind of modification biological charcoal and its preparation method and application |
| CN110302749B (en) * | 2019-05-16 | 2020-02-21 | 东莞理工学院 | Modified biochar and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171013 |