CN102107934A - Electromagnetic coagulation treatment method - Google Patents
Electromagnetic coagulation treatment method Download PDFInfo
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- CN102107934A CN102107934A CN 201010624178 CN201010624178A CN102107934A CN 102107934 A CN102107934 A CN 102107934A CN 201010624178 CN201010624178 CN 201010624178 CN 201010624178 A CN201010624178 A CN 201010624178A CN 102107934 A CN102107934 A CN 102107934A
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Abstract
The invention relates to an electromagnetic coagulation treatment method, and belongs to the field of coagulation treatment of water. According to the invention, a prepared coagulant solution is magnetized through an electromagnetic device and then added to a mixing reaction tank to be coagulated. The coagulant solution prepared at a certain concentration is magnetized by the electromagnetic device through a chemical dosing device and then added to mixing equipment to be mixed, and then a flocculation reaction, sedimentation and subsequent treatment are conducted on the coagulant solution. Under the circumstance that other conditions are the same, when being compared with the coagulation effect of an un-magnetized coagulant solution, the coagulation effect of the magnetized coagulant solution is that the best chemical dosing quantity can be reduced by 25 percent to 35 percent, the sludge moisture content is reduced by 3 percent to 5 percent, the sludge volume can be reduced by 15 percent to 40 percent; and meanwhile, the flocculating constituent forming speed is increased, the sludge sedimentation speed is increased, the flocculation time and the sedimentation time are shortened, the chemical dosing quantity and the sludge volume are greatly reduced, and subsequent sludge transportation and treatment costs are greatly reduced.
Description
Technical field
The present invention relates to a kind of electromagnetism coagulating treatment method, belong to the coagulating treatment field of water.
Background technology
The coagulating treatment of water generally is to be formulated as certain density coagulant solution at present, directly is added in the mixing equipment by administration device and carries out flocculation reaction and precipitation and subsequent disposal after the mixing.This method coagulating agent consumption is more, and precipitating sludge water ratio height, volume are big, and the formation speed of flco is slow, sedimentation speed is little wait not enough.
Summary of the invention
The object of the present invention is to provide the electromagnetism coagulating treatment method that coagulation effect is good in a kind of water treatment procedure, the coagulating agent consumption is few, settling velocity is fast, moisture percentage in sewage sludge is low, mud volume is little.
Technical solution:
The present invention after the calutron magnetization, is added to the coagulant solution of preparation again mixed reaction pond and carries out coagulation.
The present invention will be formulated as certain density coagulant solution, be added in the mixing equipment after the calutron magnetization by administration device again and carry out flocculation reaction and precipitation and subsequent disposal after the mixing.Under all identical situation of other condition, coagulant solution is compared with not magnetized coagulation effect through magnetization: optimal coagulant dose can reduce 25%-35%, moisture percentage in sewage sludge minimizing 3%-5%, mud volume can reduce 15%-40%; Simultaneously, flco formation speeds up, sludge settling speed increases, and has shortened flocculation and settling time.
Description of drawings
Fig. 1 is existing coagulating treatment technology;
Fig. 2 coagulating treatment technology of the present invention.
Embodiment
Embodiment 1:
Handle former water: Huanghe water, turbidity are 680NTU
Coagulating agent: 2% bodied ferric sulfate (PFS) solution
Coagulation condition and equipment: laboratory standard coagulation mixing condition of coagulation, intelligent coagulation experiment stirrer
1. directly get coagulant solution and carry out coagulation experiment, optimal coagulant dose is 60mg/l, and the precipitation water turbidity is 5.88NTU, and moisture percentage in sewage sludge is 91.4%;
2. will on the coagulant administration pipe magnetizing assembly be installed, make coagulant solution in calutron, magnetize (magneticstrength 44.6mT, magnetizing time 5min), carry out coagulation experiment then, optimal coagulant dose is 40mg/l, and the precipitation water turbidity is 1.66NTU, and moisture percentage in sewage sludge is 87%;
3. magnetize coagulation effect significantly better than unmagnetized coagulation effect (turbidity reduces 4.22NTU), dosage can reduce 33.3%, and moisture percentage in sewage sludge reduces 4.4%, and mud volume can reduce by 35%.
4. through observing, magnetization flco formation speed is fast and closely knit, settling property good.
Embodiment 2:
Handle former water: Huanghe water, turbidity are 700NTU
Coagulating agent: 7% rare earth coagulant solution (PRC)
Coagulation condition and equipment: laboratory standard coagulation mixing condition of coagulation, intelligent coagulation experiment stirrer
1. directly get coagulant solution and carry out coagulation experiment, optimal coagulant dose is 28mg/l, and the precipitation water turbidity is 4.32NTU, and moisture percentage in sewage sludge is 78.6%;
2. will on the coagulant administration pipe magnetizing assembly be installed, coagulant solution is magnetized in calutron, optimum magnetic field intensity is 60.1mT, magnetizing time is 6min, carries out coagulation experiment then, and optimal coagulant dose is 21mg/l, the precipitation water turbidity is 3.51NTU, and moisture percentage in sewage sludge is 75%;
3. magnetize coagulation effect significantly better than unmagnetized coagulation effect (turbidity reduces 0.81NTU), dosage can reduce 25%, and moisture percentage in sewage sludge reduces 3.6%, and mud volume can reduce by 14.4%.
4. through observing, magnetization flco formation speed is fast and closely knit, settling property good.
Embodiment 3:
Handle former water: municipal wastewater factory second pond, turbidity are 6NTU, and COD is 68mg/l
Coagulating agent: bodied ferric sulfate (PFS) solution, polymerize aluminum chloride (PAC) solution, rare earth coagulant solution (PRC)
Coagulation condition and equipment: laboratory standard coagulation mixing condition of coagulation, intelligent coagulation experiment stirrer
1. directly get coagulant solution and carry out coagulation experiment;
2. get coagulant solution and in calutron, magnetize, carry out coagulation experiment then,
3. because raw water turbidity is lower, dosage, precipitation water turbidity and COD clearance be obviously difference not
But the magnetization effect all is better than unmagnetized; Through observing, magnetization flco formation speed is fast and closely knit, settling property good, and mud volume is very little.
Claims (1)
1. electromagnetism coagulating treatment method is characterized in that, with the coagulant solution of preparation, after the calutron magnetization, is added to mixed reaction pond again and carries out coagulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010624178 CN102107934A (en) | 2010-12-30 | 2010-12-30 | Electromagnetic coagulation treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010624178 CN102107934A (en) | 2010-12-30 | 2010-12-30 | Electromagnetic coagulation treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102107934A true CN102107934A (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010624178 Pending CN102107934A (en) | 2010-12-30 | 2010-12-30 | Electromagnetic coagulation treatment method |
Country Status (1)
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| CN (1) | CN102107934A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359872A (en) * | 2013-08-02 | 2013-10-23 | 石欣 | Domestic wastewater treatment method |
| CN103880137A (en) * | 2014-04-07 | 2014-06-25 | 盐城工学院 | Electromagnetic coagulation treatment process |
| CN106430489A (en) * | 2016-10-31 | 2017-02-22 | 天津工业大学 | Water treatment method capable of disturbing ferric forms distribution in flocculating agent |
| WO2019071279A1 (en) * | 2017-10-03 | 2019-04-11 | Clean Air Nurseries Intellectual Property Holdings (Pty) Ltd | Water treatment system and method |
| CN114604948A (en) * | 2022-03-28 | 2022-06-10 | 河南亚盛电气有限责任公司 | Sewage coagulation treatment device and sewage coagulation treatment method |
-
2010
- 2010-12-30 CN CN 201010624178 patent/CN102107934A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 《水处理技术》 20010228 熊德琪等 应用磁化效应提高含酚废水处理效果 50-52 1 第27卷, 第1期 2 * |
| 《水系统的磁处理》 19880930 B.И.克拉辛 《水系统的磁处理》 宇航出版社 238 1 , 1 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359872A (en) * | 2013-08-02 | 2013-10-23 | 石欣 | Domestic wastewater treatment method |
| CN103880137A (en) * | 2014-04-07 | 2014-06-25 | 盐城工学院 | Electromagnetic coagulation treatment process |
| CN106430489A (en) * | 2016-10-31 | 2017-02-22 | 天津工业大学 | Water treatment method capable of disturbing ferric forms distribution in flocculating agent |
| WO2019071279A1 (en) * | 2017-10-03 | 2019-04-11 | Clean Air Nurseries Intellectual Property Holdings (Pty) Ltd | Water treatment system and method |
| CN114604948A (en) * | 2022-03-28 | 2022-06-10 | 河南亚盛电气有限责任公司 | Sewage coagulation treatment device and sewage coagulation treatment method |
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Application publication date: 20110629 |