CN112239245A - Decolorizing agent for removing COD and cyanide - Google Patents
Decolorizing agent for removing COD and cyanide Download PDFInfo
- Publication number
- CN112239245A CN112239245A CN201910675277.7A CN201910675277A CN112239245A CN 112239245 A CN112239245 A CN 112239245A CN 201910675277 A CN201910675277 A CN 201910675277A CN 112239245 A CN112239245 A CN 112239245A
- Authority
- CN
- China
- Prior art keywords
- parts
- cod
- cyanide
- wastewater
- decolorant
- 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
- C02F1/28—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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
Abstract
The invention relates to a COD and cyanide removal decolorant, which comprises the following components in parts by weight: comprises 35 to 40 parts of active carbon, 1 to 30 parts of basic aluminum ferric chloride, 20 to 30 parts of adsorbent and H2O20.5-15 parts. The technical scheme provided by the invention has the beneficial effects that: the effluent water treated by the COD and cyanide removal decolorant meets the wastewater recycling or discharge standard, and the indexes of the effluent water such as chromaticity, COD, cyanide and the like can reach the national relevant standards of industrial wastewater recycling or discharge.
Description
Technical Field
The invention relates to a decolorant for removing COD and cyanide.
Background
At present, the nation has a clear discharge standard for COD, cyanide is high, COD is high and can hardly reach the discharge standard, and chromaticity, cyanide and COD in wastewater can cause deterioration of water quality of natural water bodies, destroy water body balance and have great harm to water environment. Therefore, it is necessary to perform decolorization, decyanation, and COD degradation treatments. In the prior art, indexes such as chromaticity, COD (chemical oxygen demand), cyanide and the like of effluent hardly reach national relevant standards of industrial wastewater recycling or discharge.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a COD (chemical oxygen demand) and cyanide removal decolorant which can deeply treat cyanide and COD in waste liquid and save the treatment cost.
The technical scheme of the invention is as follows:
a COD and cyanide removal decolorant comprises the following components in parts by weight:
comprises 35 to 40 parts of active carbon, 1 to 30 parts of basic aluminum ferric chloride, 20 to 30 parts of adsorbent and H2O20.5-15 parts.
Preferably, the activated carbon is 36 parts37-parts of basic aluminum ferric chloride, 5-20 parts of adsorbent, 27-30 parts of H2O21-13 parts.
A method for using a decolorant for removing COD and cyanide comprises the steps of uniformly and slowly adding the wastewater treatment agent into wastewater to be treated, adding the wastewater while stirring, adding polyacrylamide with the concentration of 3ppm while stirring, standing and precipitating for 60-80 minutes, and then carrying out solid-liquid separation, wherein compared with the wastewater to be treated, the chroma and the cyanide removal rate of a supernatant obtained after the solid-liquid separation are more than 92%, and the COD removal rate is more than 85%.
The technical scheme provided by the invention has the beneficial effects that:
the effluent water treated by the COD and cyanide removal decolorant meets the wastewater recycling or discharge standard, and the indexes of the effluent water such as chromaticity, COD, cyanide and the like can reach the national relevant standards of industrial wastewater recycling or discharge.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail with reference to specific examples.
Example 1
A COD and cyanide removal decolorant comprises the following components in parts by weight:
comprises 35 parts of active carbon, 30 parts of basic aluminum ferric chloride, 30 parts of adsorbent and H2O25 parts of the raw materials.
A method for using a decolorant for removing COD and cyanide comprises the steps of uniformly and slowly adding the wastewater treatment agent into wastewater to be treated, adding the wastewater while stirring, adding polyacrylamide with the concentration of 3ppm while stirring, standing and precipitating for 60-80 minutes, and then carrying out solid-liquid separation, wherein compared with the wastewater to be treated, the chroma and the cyanide removal rate of a supernatant obtained after the solid-liquid separation are more than 92%, and the COD removal rate is more than 85%.
Example 2
A COD and cyanide removal decolorant comprises the following components in parts by weight:
comprises 40 portions of active carbon, 25 portions of basic aluminum ferric chloride,20 portions of adsorbent and H2O215 parts.
A method for using a decolorant for removing COD and cyanide comprises the steps of uniformly and slowly adding the wastewater treatment agent into wastewater to be treated, adding the wastewater while stirring, adding polyacrylamide with the concentration of 3ppm while stirring, standing and precipitating for 60-80 minutes, and then carrying out solid-liquid separation, wherein compared with the wastewater to be treated, the chroma and the cyanide removal rate of a supernatant obtained after the solid-liquid separation are more than 92%, and the COD removal rate is more than 85%.
Example 3
A COD and cyanide removal decolorant comprises the following components in parts by weight:
comprises 35 parts of active carbon, 20 parts of basic aluminum ferric chloride, 30 parts of adsorbent and H2O215 parts.
A method for using a decolorant for removing COD and cyanide comprises the steps of uniformly and slowly adding the wastewater treatment agent into wastewater to be treated, adding the wastewater while stirring, adding polyacrylamide with the concentration of 3ppm while stirring, standing and precipitating for 60-80 minutes, and then carrying out solid-liquid separation, wherein compared with the wastewater to be treated, the chroma and the cyanide removal rate of a supernatant obtained after the solid-liquid separation are more than 92%, and the COD removal rate is more than 85%.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A COD and cyanide removal decolorant is characterized by comprising the following components in parts by weight: comprises 35 to 40 parts of active carbon, 1 to 30 parts of basic aluminum ferric chloride, 20 to 30 parts of adsorbent and H2O20.5-15 parts.
2. The COD and cyanide removal decolorant according to claim 1, wherein the activated carbon is 36-37 parts, the basic aluminum ferric chloride is 5-20 parts, the adsorbent is 27-30 parts, and the H is2O21-13 parts.
3. The use method of the COD and cyanide removal decolorant according to claim 1, wherein the wastewater treatment agent is added to the wastewater to be treated uniformly and slowly, the wastewater is added while stirring, then polyacrylamide is added in an amount of 3ppm while stirring, the mixture is left to stand and precipitate for 60 to 80 minutes, then solid-liquid separation is carried out, the chroma and cyanide removal rate of the supernatant after the solid-liquid separation are more than 92% compared with the wastewater to be treated, and the COD removal rate is more than 85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675277.7A CN112239245A (en) | 2019-07-18 | 2019-07-18 | Decolorizing agent for removing COD and cyanide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675277.7A CN112239245A (en) | 2019-07-18 | 2019-07-18 | Decolorizing agent for removing COD and cyanide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112239245A true CN112239245A (en) | 2021-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910675277.7A Pending CN112239245A (en) | 2019-07-18 | 2019-07-18 | Decolorizing agent for removing COD and cyanide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112239245A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183395A (en) * | 2013-03-18 | 2013-07-03 | 庞红信 | Decolorizing trapping agent |
| CN109384276A (en) * | 2018-10-22 | 2019-02-26 | 鞍山市鑫诚水处理有限公司 | A kind of efficient decolorizing, decyanation, the COD that degrades Waste water treatment medicament |
-
2019
- 2019-07-18 CN CN201910675277.7A patent/CN112239245A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183395A (en) * | 2013-03-18 | 2013-07-03 | 庞红信 | Decolorizing trapping agent |
| CN109384276A (en) * | 2018-10-22 | 2019-02-26 | 鞍山市鑫诚水处理有限公司 | A kind of efficient decolorizing, decyanation, the COD that degrades Waste water treatment medicament |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210119 |