CN109896659A - A kind of composite flocculation agent and the method for handling dyeing waste water - Google Patents
A kind of composite flocculation agent and the method for handling dyeing waste water Download PDFInfo
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- CN109896659A CN109896659A CN201711297499.7A CN201711297499A CN109896659A CN 109896659 A CN109896659 A CN 109896659A CN 201711297499 A CN201711297499 A CN 201711297499A CN 109896659 A CN109896659 A CN 109896659A
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- composite flocculation
- waste water
- flocculation agent
- dyeing waste
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Abstract
The invention discloses a kind of composite flocculation agents, raw material including following parts by weight: 10-14 parts of chitosan, 20-30 parts of starch, 15-20 parts of ferrous sulfate, 7-10 parts of polyacrylamide, 10-20 parts of attapulgite, inventory can be effectively reduced in the flocculant, promote water treatment capacity, to improve water treatment efficiency, reduce secondary pollution, improve the quality of processing water, the invention also discloses the methods using above-mentioned composite flocculation agent processing dyeing waste water, using flocculant of the invention after method of the invention handles dyeing waste water, COD removal rate is up to 95%, BOD removal rate is 70%, total tp removal rate is 95%, total ammonia removal rate is 70%.
Description
Technical field
The present invention relates to a kind of composite flocculation agent and the methods for handling dyeing waste water.
Background technique
With the rise of dyeing, the wastewater discharge and the total amount of pollutant of dyeing have occupied national industry respectively
The second of department and the 4th are one of China's emphasis pollution industries.Contain a large amount of synthetic dyestuffs in dyeing waste water, these
Dyestuff contains complicated structure, there is stronger heat, photostability, it is more difficult to which directly progress biochemical treatment has severely compromised environment.
The method of conventional dyes wastewater treatment mainly active charcoal method, chemical oxidization method, Coagulation Method, electrochemical process, absorption method etc., but because
Higher cost, decolorizing efficiency is lower, and is difficult to industrial applications.Therefore, it is dedicated to seeking a kind of efficient, inexpensive processing method
Have become the concern target for current researcher.
Summary of the invention
The present invention provides a kind of composite flocculation agents.
To solve the above-mentioned problems, the technical scheme adopted by the invention is that it is such, a kind of composite flocculation agent, including with
The raw material of lower parts by weight: 10-14 parts of chitosan, 20-30 parts of starch, 15-20 parts of ferrous sulfate, 7-10 parts of polyacrylamide are recessed
10-20 parts of convex stick soil.
Preferably, the composite flocculation agent, the raw material including following parts by weight: 12 parts of chitosan, 20 parts of starch, sulfuric acid
It is 14 parts, 9 parts of polyacrylamide, 20 parts of attapulgite ferrous.
For better effect, the composite flocculation agent is by passing through each raw material of the above-mentioned parts by weight prepared
Broken plus 5%-10% water carries out ball milling, drying, is then mixed, sieves with 100 mesh sieve to obtain.
The present invention also provides a kind of methods for handling dyeing waste water, include the following steps, 1) dyeing waste water is passed through wadding
Solidifying sedimentation basin adjusts pH value to 11-14 with alkaline agent；2) it stirs, 2-4h is first stirred with 1500-2000 revs/min of mixing speed, then
4-6h is stirred with 200-400 revs/min of speed；3) static free settling 24-48h；4) supernatant enters neutralization pond, with sour agent adjusting
PH is to neutrality, and 4) enter flocculation basin, the above-mentioned composite flocculation agent of 200-250g is added in every 1L sewage investment, with 500-800 revs/min
Mixing speed stirs 4-8h, then discharges.
The utility model has the advantages that flocculant of the invention can effectively promote water treatment capacity, to improve water treatment efficiency, reduce
Secondary pollution improves the quality of processing water, and after treated by the present method, COD removal rate is up to 95%, BOD removal rate
70%, total tp removal rate is 95%, and total ammonia removal rate is 70%.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
Embodiment 1
The composite flocculation agent, by by each raw materials of following parts by weight by broken plus 5%-10% water carry out ball milling,
Then drying is mixed, sieves with 100 mesh sieve to obtain；
12 parts of chitosan；
20 parts of starch；
14 parts of ferrous sulfate；
9 parts of polyacrylamide；
20 parts of attapulgite.
Embodiment 2 is applied
1) dyeing waste water that certain factory is discharged is passed through flocculation sedimentation tank, pH value is adjusted to 11-14 with alkaline agent；2) stir, first with
1500-2000 revs/min of mixing speed stirs 2-4h, then stirs 4-6h with 200-400 revs/min of speed；3) static free settling
24-48h；4) supernatant enters neutralization pond, with sour agent adjusting pH to neutrality, 4) and enter flocculation basin, every 1L sewage investment is added
200-250g flocculant described in embodiment 1 stirs 4-8h with 500-800 revs/min of mixing speed, then discharges, prints through detection
Contaminating waste water COD removal rate up to 95%, BOD removal rate is 70%, and total tp removal rate is 95%, and total ammonia removal rate is 70%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of composite flocculation agent, which is characterized in that the raw material including following parts by weight: 10-14 parts of chitosan, starch 20-30
Part, 15-20 parts of ferrous sulfate, 7-10 parts of polyacrylamide, 10-20 parts of attapulgite.
2. a kind of composite flocculation agent according to claim 1, which is characterized in that the raw material including following parts by weight: shell is poly-
12 parts of sugar, 20 parts of starch, 14 parts of ferrous sulfate, 9 parts of polyacrylamide, 20 parts of attapulgite.
3. a kind of composite flocculation agent according to claim 2, which is characterized in that pass through each raw material of the parts by weight prepared
Broken plus 5%-10% water is crossed to carry out ball milling, drying and then be mixed, sieve with 100 mesh sieve to obtain.
4. a kind of method for handling dyeing waste water, which is characterized in that 1) dyeing waste water is passed through flocculation sedimentation tank, is adjusted with alkaline agent
PH value is to 11-14；2) it stirs, 2-4h is first stirred with 1500-2000 revs/min of mixing speed, then with 200-400 revs/min of speed
Stir 4-6h；3) static free settling 24-48h；4) supernatant enters neutralization pond, with sour agent adjusting pH to neutrality, 4) and enter wadding
Solidifying pond, 200-250g composite flocculation agent as claimed in claim 3 is added in every 1L sewage investment, with 500-800 revs/min of mixing speed
4-8h is stirred, is then discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297499.7A CN109896659A (en) | 2017-12-08 | 2017-12-08 | A kind of composite flocculation agent and the method for handling dyeing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297499.7A CN109896659A (en) | 2017-12-08 | 2017-12-08 | A kind of composite flocculation agent and the method for handling dyeing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109896659A true CN109896659A (en) | 2019-06-18 |
Family
ID=66940626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711297499.7A Pending CN109896659A (en) | 2017-12-08 | 2017-12-08 | A kind of composite flocculation agent and the method for handling dyeing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109896659A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456625A (en) * | 2020-12-15 | 2021-03-09 | 扬州工业职业技术学院 | Industrial wastewater treating agent and preparation method thereof |
| CN114573145A (en) * | 2022-03-15 | 2022-06-03 | 林其灿 | Industrial wastewater harmless treatment method |
| CN115490313A (en) * | 2022-11-16 | 2022-12-20 | 山东鲁净环保材料科技有限公司 | Flocculating agent for sewage treatment and preparation method thereof |
-
2017
- 2017-12-08 CN CN201711297499.7A patent/CN109896659A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456625A (en) * | 2020-12-15 | 2021-03-09 | 扬州工业职业技术学院 | Industrial wastewater treating agent and preparation method thereof |
| CN112456625B (en) * | 2020-12-15 | 2022-08-02 | 扬州工业职业技术学院 | Industrial wastewater treating agent and preparation method thereof |
| CN114573145A (en) * | 2022-03-15 | 2022-06-03 | 林其灿 | Industrial wastewater harmless treatment method |
| CN115490313A (en) * | 2022-11-16 | 2022-12-20 | 山东鲁净环保材料科技有限公司 | Flocculating agent for sewage treatment and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190618 |
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| WD01 | Invention patent application deemed withdrawn after publication |