CN104310544A - Flocculant for treating papermaking wastewater - Google Patents
Flocculant for treating papermaking wastewater Download PDFInfo
- Publication number
- CN104310544A CN104310544A CN201410491433.1A CN201410491433A CN104310544A CN 104310544 A CN104310544 A CN 104310544A CN 201410491433 A CN201410491433 A CN 201410491433A CN 104310544 A CN104310544 A CN 104310544A
- Authority
- CN
- China
- Prior art keywords
- flocculant
- flocculation agent
- wastewater
- papermaking wastewater
- processing paper
- 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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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a flocculant for treating papermaking wastewater in the environmental protection field. The flocculant for treating the paper-making wastewater comprises the following components: 70-100 parts of polymeric ferric sulfate, 3-10 parts of polyacrylamide, and 0.3-1 part of chitosan oligosaccharide. The flocculant is used for wastewater treatment in papermaking wastewater 'flotation-coagulation' working sections, enables the chemical oxygen demand COD and the removal rate of suspended solids SS in the papermaking wastewater to respectively reach 65% or more and 98.2% or more; compared with a traditional flocculant PAM/PAC, the flocculant has the chemical oxygen demand COD and the removal rate of the suspended solids SS respectively increased at least by 12% and 6%, and has the reagent cost of the flocculant dropped at least by 23%; and the flocculant has obvious economic and environmental benefits, and has important popularizing application values in China papermaking wastewater treatment industries.
Description
Technical field
The invention belongs to field of Environment Protection, be specifically related to a kind of flocculation agent of Processing Paper Wastewater.
Background technology
Pulp and paper industry is one of important industry of Chinese national economy, but it also becomes increasingly conspicuous to the pollution that environment causes, and especially to the severe contamination of China's water surrounding, has become the focus of industrial pollution control, focus and difficult point.
Coagulant precipitation is the main process of the current Sewage vapour section of floating, and the flocculation agent of use mainly contains 3 large classes: a class is inorganic flocculating agent, as polymerize aluminum chloride, is used alone inorganic coagulant, and dosage is large, and processing costs is high; Equations of The Second Kind is organic floculant, and as polyacrylamide, purifying water effect is good, but it is difficult to there is degraded, the problems such as residual monomer is poisonous; 3rd class is inorganic and organic composite coagulator, as PAC/PAM, is used alone although result of use is better than it, also there is the residual problem such as toxic monomers and high expensive.
Summary of the invention
For solving the problem, the invention provides a kind of flocculation agent of new Processing Paper Wastewater, the flocculation agent of described Processing Paper Wastewater comprises following component: bodied ferric sulfate 70-100 part, polyacrylamide 3-10 part, oligochitosan 0.3-1 part.
Further, the using method of described Used as Flocculation Agent of Papermaking-sewage comprises the following steps:
(1) add in paper waste by flocculation agent, regulate water temperature 35-45 DEG C, pH value is set as 6.5-7.5, stirs;
(2) after staticly settling, chemical oxygen demand COD and ss suspended solid value that supernatant liquid measures each water sample is got.
Further, in step (1), stirring velocity is 100-140r/min.
Further, in step (2), sedimentation time is set as 6-10min.
Flocculation agent of the present invention is used for the sewage disposal of papermaking wastewater " air supporting-coagulation " workshop section, compared with traditional flocculant PAM/PAC, has obvious superiority of effectiveness.With this understanding, it can reach more than 65% and more than 98.2% respectively to the clearance of chemical oxygen demand COD in papermaking wastewater and ss suspended solid, compared with traditional flocculant PAM/PAC, at least improve 12% and 6% respectively, and the reagent cost of flocculation agent at least have dropped 23%, there is obvious ecnomics and enviroment benefit, in China's Sewage industry, there is important application value.
Embodiment
Embodiment 1
A flocculation agent for Processing Paper Wastewater, the flocculation agent of described Processing Paper Wastewater comprises following component: bodied ferric sulfate 70 parts, polyacrylamide 3 parts, oligochitosan 0.3 part.
The using method of described Used as Flocculation Agent of Papermaking-sewage comprises the following steps:
(1) add in paper waste by flocculation agent, regulate water temperature to be 35 DEG C, regulate pH value to be 6.5, stirring velocity is set as 100r/min;
(2) after staticly settling 6min, chemical oxygen demand COD and ss suspended solid value that supernatant liquid measures each water sample is got.
With this understanding, it can reach 66% and 98.5% respectively to the clearance of chemical oxygen demand COD in papermaking wastewater and ss suspended solid, compared with traditional flocculant PAM/PAC, improve 18.7% and 6.1% respectively, and the reagent cost of flocculation agent have dropped 23.2%.
Embodiment 2
A flocculation agent for Processing Paper Wastewater, the flocculation agent of described Processing Paper Wastewater comprises following component: bodied ferric sulfate 85 parts, polyacrylamide 8 parts, oligochitosan 0.5 part.
The using method of described Used as Flocculation Agent of Papermaking-sewage comprises the following steps:
(1) add in paper waste by flocculation agent, regulate water temperature to be 42 DEG C, regulate pH value to be 6.8, stirring velocity is set as 120r/min;
(2) after staticly settling 10min, chemical oxygen demand COD and ss suspended solid value that supernatant liquid measures each water sample is got.
With this understanding, it can reach 68% and 98.8% respectively to the clearance of chemical oxygen demand COD in papermaking wastewater and ss suspended solid, compared with traditional flocculant PAM/PAC, improve 20.7% and 6.4% respectively, and the reagent cost of flocculation agent have dropped 24.2%.
Embodiment 3
A flocculation agent for Processing Paper Wastewater, the flocculation agent of described Processing Paper Wastewater comprises following component: bodied ferric sulfate 100 parts, polyacrylamide 10 parts, oligochitosan 0.8 part.
The using method of described Used as Flocculation Agent of Papermaking-sewage comprises the following steps:
(1) add in paper waste by flocculation agent, regulate water temperature to be 45 DEG C, regulate pH value to be 7.5, stirring velocity is set as 140r/min;
(2) after staticly settling 10min, chemical oxygen demand COD and ss suspended solid value that supernatant liquid measures each water sample is got.
With this understanding, it can reach 67.5% and 98.6% respectively to the clearance of chemical oxygen demand COD in papermaking wastewater and ss suspended solid, compared with traditional flocculant PAM/PAC, improve 20.2% and 6.2% respectively, and the reagent cost of flocculation agent have dropped 24.5%.
Claims (4)
1. a flocculation agent for Processing Paper Wastewater, is characterized in that, the flocculation agent of described Processing Paper Wastewater comprises following component: bodied ferric sulfate 70-100 part, polyacrylamide 3-10 part, oligochitosan 0.3-1 part.
2. a using method for the flocculation agent of Processing Paper Wastewater according to claim 1, is characterized in that, the using method of described Used as Flocculation Agent of Papermaking-sewage comprises the following steps:
(1) add in paper waste by flocculation agent, regulate water temperature 35-45 DEG C, pH value is set as 6.5-7.5, stirs;
(2) after staticly settling, chemical oxygen demand COD and ss suspended solid value that supernatant liquid measures each water sample is got.
3. the using method of the flocculation agent of a kind of Processing Paper Wastewater according to claim 2, is characterized in that, in step (1), stirring velocity is 100-140r/min.
4. the using method of the flocculation agent of a kind of Processing Paper Wastewater according to claim 2, is characterized in that, the time that staticly settles in step (2) is set as 6-10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491433.1A CN104310544A (en) | 2014-09-24 | 2014-09-24 | Flocculant for treating papermaking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491433.1A CN104310544A (en) | 2014-09-24 | 2014-09-24 | Flocculant for treating papermaking wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104310544A true CN104310544A (en) | 2015-01-28 |
Family
ID=52365898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410491433.1A Pending CN104310544A (en) | 2014-09-24 | 2014-09-24 | Flocculant for treating papermaking wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310544A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236540A (en) * | 2015-10-29 | 2016-01-13 | 淄博夸克医药技术有限公司 | Flocculating agent used for treating papermaking wastewater |
| CN105776817A (en) * | 2016-04-28 | 2016-07-20 | 广州市水电建设工程有限公司 | Quick dewatering process for city watercourse sludge |
| CN106915810A (en) * | 2017-04-19 | 2017-07-04 | 宝鸡文理学院 | A kind of high efficiency composition flocculant and its preparation method and application |
| CN107746085A (en) * | 2017-12-05 | 2018-03-02 | 广东省造纸研究所 | A kind of paper-making waste water treating agent and its method for handling paper waste |
| US10982391B2 (en) | 2016-06-01 | 2021-04-20 | Ecolab Usa Inc. | High-efficiency strength program used for making paper in higher charge demand system |
-
2014
- 2014-09-24 CN CN201410491433.1A patent/CN104310544A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236540A (en) * | 2015-10-29 | 2016-01-13 | 淄博夸克医药技术有限公司 | Flocculating agent used for treating papermaking wastewater |
| CN105776817A (en) * | 2016-04-28 | 2016-07-20 | 广州市水电建设工程有限公司 | Quick dewatering process for city watercourse sludge |
| CN105776817B (en) * | 2016-04-28 | 2017-04-12 | 广州市水电建设工程有限公司 | Quick dewatering process for city watercourse sludge |
| US10982391B2 (en) | 2016-06-01 | 2021-04-20 | Ecolab Usa Inc. | High-efficiency strength program used for making paper in higher charge demand system |
| CN106915810A (en) * | 2017-04-19 | 2017-07-04 | 宝鸡文理学院 | A kind of high efficiency composition flocculant and its preparation method and application |
| CN106915810B (en) * | 2017-04-19 | 2020-11-20 | 安徽金兄弟环保科技股份有限公司 | High-efficiency composite flocculant and preparation method and application thereof |
| CN107746085A (en) * | 2017-12-05 | 2018-03-02 | 广东省造纸研究所 | A kind of paper-making waste water treating agent and its method for handling paper waste |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |