CN102774940B - Preparation method of flocculant for removing low-temperature low-turbidity phosphorous wastewater - Google Patents
Preparation method of flocculant for removing low-temperature low-turbidity phosphorous wastewater Download PDFInfo
- Publication number
- CN102774940B CN102774940B CN2012102534470A CN201210253447A CN102774940B CN 102774940 B CN102774940 B CN 102774940B CN 2012102534470 A CN2012102534470 A CN 2012102534470A CN 201210253447 A CN201210253447 A CN 201210253447A CN 102774940 B CN102774940 B CN 102774940B
- Authority
- CN
- China
- Prior art keywords
- temperature
- low
- preparation
- adds
- turbidity
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a preparation method of a flocculant for removing low-temperature low-turbidity phosphorous wastewater. The preparation method includes: adding Fe3O4 powder, Al2 (SO4)3, MgCl2 and MnO2 when the temperature rises to 65 DEG C, and continuously stirring and heating; adding aluminum acid calcium with a certain mass content of Al2O3 when the temperature rises to 85 DEG C, and stirring for reaction for 2.5 hours at the temperature of 115 DEG C; and keeping the temperature of 115 DEG C, adding octadecyl trimethyl ammonium bromide and continuously stirring prior to curing. The polyhydroxy multi-metal-core polymer inorganic flocculant is obtained by preparation and has remarkable flocculation effects in treatment of the low-temperature low-turbidity phosphorous wastewater, alum floc forming time is short, flocs are large and firm, the phosphorus content in the treated water can be lower than 0.2mg/L, and removal rate is higher than 97%.
Description
Technical field
The invention belongs to water treatment field, specifically a kind of preparation method who removes low temperature and low turbidity water phosphorus-containing wastewater flocculation agent.
Background technology
Phosphorus is important industrial raw materials, in the industrial production such as chemical fertilizer, washing composition, food-drink, metallurgy, all be widely used, therefore inevitably produce phosphorus-containing wastewater in industrial production, if undressed phosphorus-containing wastewater is discharged in water body, not only can cause the waste of phosphor resource, the more important thing is that phosphorus belongs to rich nutritive material in water, in water body, phosphorus content surpasses 50 μ g/L and just contributes to the growth of algae, and affects the quality of surface water.Study efficient dephosphorization agent and improve coagulation effect, to the phosphorus content of controlling enterprise's sewage effluent in order to keep water body safety significant.
At present, both at home and abroad commonly used remove phosphorus-containing wastewater commonly used method be adsorption method and flucculation process, usually the flocculation agent adopted is generally processed to add the inorganic flocculating agents such as polymerize aluminum chloride, bodied ferric sulfate, aluminium iron polychloride, but the water water temperature is low and turbidity is low processing for common flocculation agent, clarification, transparent, make the flocculating effect of flocculation agent not obvious, tp removal rate is not high.As Liaohe Chemical Fertilizer Factory, take the polymerization aluminium sulfide as flocculation agent, polyacrylamide is that coagulant aids carrys out Removal of Phosphorus in Wastewater, this method is mainly to make phosphorus and the de-purpose of stablizing to reach removal phosphorus of mechanical impurity in water by charge neutrality and adsorption bridging, although this method removal effect to phosphorus-containing wastewater to a certain extent is obvious to some extent,, in the situation that water temperature is low, the flocculating effect of the low flocculation agent of turbidity is not obvious, be difficult to form alumen ustum, clearance is not high.
Summary of the invention
Usually lower in order to solve owing to processing the water water temperature, and the problem such as turbidity is low, and clarification, transparent, cause the flocculating effect of flocculation agent not obvious, and the clearance of phosphorus is not high, the invention discloses a kind of preparation method who removes low temperature and low turbidity water phosphorus-containing wastewater flocculation agent.
The technical solution used in the present invention is as follows:
A kind of preparation method who removes low temperature, low turbidity phosphorus-containing wastewater flocculation agent, its method is:
(1) get one of tri-mouthfuls of round-bottomed flask of 250mL, middle bottleneck is loaded onto stirrer, and the left side bottleneck inserts thermometer, adds to the right 50～55mL aluminium chlorhydrate in bottleneck, Al in aluminium chlorhydrate
2o
3content is 2～3%, and acidity is 7.2%, then adds 175～180mL water, and the jam-pack bottle stopper heats and stirs in electric furnace;
(2) when being elevated to 65 ℃, Heating temperature adds 3～5gFe
3o
4powder, 20～22gAl
2(SO
4)
3, 8～10gMgCl
2, 2～3gMnO
2, continue stirring heating;
(3) when Heating temperature is elevated to 85 ℃, add 50～52gAl
2o
3the calcium aluminate powder that content is 52%, rapidly reaction, temperature rose, 115 ℃ of lower stirring reactions of temperature 2.5 hours;
(4) keep 115 ℃ of temperature, add 3～5g octadecyl trimethylammonium amine bromide, continue to stir after 20 minutes, stop stirring, slaking gets final product.
A kind of application method of removing low temperature, low-concentration phosphorus-containing wastewater flocculation agent is:
After 10 times of the flocculation agent use distilled water dilutings made, getting 0.5～0.7mL diluent joins in 100mL clarification, transparent natural water body (or second pond water outlet), stir rapidly, visible have alumen ustum to form, it is large that flco becomes gradually, after precipitation, record in supernatant liquor phosphorus content below 0.2mg/L.
Significant advantage of the present invention is:
(1) prepare the polymer inorganic flocculating agent body of the many metal core of a kind of poly-hydroxy, wherein Al
3+content is 12%～15%, Fe
3+content is 1%～2%, Fe
2+content is 2%～5%, Mg
2+content is 12%～13%, Mn
2+content is 2%～3%, in addition, also contains 10%～12% SO
4 2-, content is 0.1%～0.6% octadecyl trimethylammonium amine bromide;
(2) good to low temperature, low turbidity water flocculating effect, the alumen ustum formation time is short, and flco is large, solid.
Embodiment
A kind of preparation method who removes low temperature, low turbidity phosphorus-containing wastewater flocculation agent, its method is:
(1) get one of tri-mouthfuls of round-bottomed flask of 250mL, middle bottleneck is loaded onto stirrer, and the left side bottleneck inserts thermometer, adds to the right 50～55mL aluminium chlorhydrate in bottleneck, Al in aluminium chlorhydrate
2o
3content is 2～3%, and acidity is 7.2%, then adds 175～180mL water, and the jam-pack bottle stopper heats and stirs in electric furnace;
(2) when being elevated to 65 ℃, Heating temperature adds 3～5gFe
3o
4powder, 20～22gAl
2(SO
4)
3, 8～10gMgCl
2, 2～3gMnO
2, continue stirring heating;
(3) when Heating temperature is elevated to 85 ℃, add 50～52gAl
2o
3the calcium aluminate powder that content is 52%, rapidly reaction, temperature rose, 115 ℃ of lower stirring reactions of temperature 2.5 hours;
(4) keep 115 ℃ of temperature, add 3～5g octadecyl trimethylammonium amine bromide, continue to stir after 20 minutes, stop stirring, slaking gets final product.
Below by example, the present invention is elaborated
Example 1
At first get one of tri-mouthfuls of round-bottomed flask of 250mL, load onto stirrer at middle bottleneck, the left side bottleneck inserts thermometer, adds to the right 50mL aluminium chlorhydrate and 175mL water in bottleneck, heat in electric furnace and stir after the jam-pack bottle stopper, add 3gFe when Heating temperature is elevated to 65 ℃
3o
4powder, 20gAl
2(SO
4),
38gMgCl
2, 2gMnO
2, continue stirring heating, when Heating temperature is elevated to 85 ℃, add 50gAl
2o
3the calcium aluminate powder that content is 52%, rapidly reaction, temperature rises, and 115 ℃ of lower stirring reactions of temperature 2.5 hours, keeps 115 ℃ of temperature, adds 3g octadecyl trimethylammonium amine bromide, continues to stir after 20 minutes, stops stirring post curing and gets final product.
Waste water in certain river is carried out to the dephosphorization processing, by after 10 times of the above-mentioned flocculation agent use distilled water dilutings made, getting the 0.5mL diluent adds as in waste water, former water total phosphorus is 103.5mg/L, and at first pH3.9 is adjusted to 5.0 by former water pH, through stirring rapidly, after flocculation reaction, precipitation, record that in supernatant liquor, phosphorus content is below 0.2mg/L, tp removal rate reaches more than 97%.
Example 2
At first get one of tri-mouthfuls of round-bottomed flask of 250mL, load onto stirrer at middle bottleneck, the left side bottleneck inserts thermometer, adds to the right 53mL aluminium chlorhydrate and 177mL water in bottleneck, heat in electric furnace and stir after the jam-pack bottle stopper, add 4gFe when Heating temperature is elevated to 65 ℃
3o
4powder, 21gAl
2(SO
4)
3, 9gMgCl
2, 2.5gMnO
2, continue stirring heating, when Heating temperature is elevated to 85 ℃, add 51gAl
2o
3the calcium aluminate powder that content is 52%, rapidly reaction, temperature rises, and 115 ℃ of lower stirring reactions of temperature 2.5 hours, keeps 115 ℃ of temperature, adds 4g octadecyl trimethylammonium amine bromide, continues to stir after 20 minutes, stops stirring post curing and gets final product.
Get natural waste water and carry out the dephosphorization processing, by after 10 times of the above-mentioned flocculation agent use distilled water dilutings made, getting the 0.6mL diluent adds as in waste water, former water total phosphorus is 103.5mg/L, and at first pH3.9 is adjusted to 7.0 by former water pH, through stirring rapidly, after flocculation reaction, precipitation, record that in supernatant liquor, phosphorus content is below 0.18mg/L, tp removal rate reaches more than 98%.
Example 3
At first get one of tri-mouthfuls of round-bottomed flask of 250mL, load onto stirrer at middle bottleneck, the left side bottleneck inserts thermometer, adds to the right 55mL aluminium chlorhydrate and 180mL water in bottleneck, heat in electric furnace and stir after the jam-pack bottle stopper, add 5gFe when Heating temperature is elevated to 65 ℃
3o
4powder, 22gAl
2(SO
4)
3, 10gMgCl
2, 3gMnO
2, continue stirring heating, when Heating temperature is elevated to 85 ℃, add 52gAl
2o
3the calcium aluminate powder that content is 52%, rapidly reaction, temperature rises, and 115 ℃ of lower stirring reactions of temperature 2.5 hours, keeps 115 ℃ of temperature, adds 5g octadecyl trimethylammonium amine bromide, continues to stir after 20 minutes, stops stirring post curing and gets final product.
Certain river waste water is carried out to the dephosphorization processing, by after 10 times of the above-mentioned flocculation agent use distilled water dilutings made, getting the 0.7mL diluent adds in waste water, former water total phosphorus is 103.5mg/L, and at first pH3.9 is adjusted to 8.0 by former water pH, through stirring rapidly, after flocculation reaction, precipitation, record that in supernatant liquor, phosphorus content is below 0.15mg/L, tp removal rate reaches more than 99%.
Claims (1)
1. a preparation method who removes low temperature, low turbidity phosphorus-containing wastewater flocculation agent is characterized in that:
(1) get one of tri-mouthfuls of round-bottomed flask of 250mL, middle bottleneck is loaded onto stirrer, and the left side bottleneck inserts thermometer, adds to the right 50～55mL aluminium chlorhydrate in bottleneck, Al in aluminium chlorhydrate
2o
3content is 2～3%, and acidity is 7.2%, then adds 175～180mL water, and the jam-pack bottle stopper heats and stirs in electric furnace;
(2) when being elevated to 65 ℃, Heating temperature adds 3～5gFe
3o
4powder, 20～22gAl
2(SO
4)
3, 8～10gMgCl
2, 2～3gMnO
2, continue stirring heating;
(3) when Heating temperature is elevated to 85 ℃, add 50～52gAl
2o
3the calcium aluminate powder that content is 52%, rapidly reaction, temperature rose, 115 ℃ of lower stirring reactions of temperature 2.5 hours;
(4) keep 115 ℃ of temperature, add 3～5g octadecyl trimethylammonium amine bromide, continue to stir after 20 minutes, stop stirring, slaking gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102534470A CN102774940B (en) | 2012-07-18 | 2012-07-18 | Preparation method of flocculant for removing low-temperature low-turbidity phosphorous wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102534470A CN102774940B (en) | 2012-07-18 | 2012-07-18 | Preparation method of flocculant for removing low-temperature low-turbidity phosphorous wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102774940A CN102774940A (en) | 2012-11-14 |
| CN102774940B true CN102774940B (en) | 2013-12-11 |
Family
ID=47120081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102534470A Expired - Fee Related CN102774940B (en) | 2012-07-18 | 2012-07-18 | Preparation method of flocculant for removing low-temperature low-turbidity phosphorous wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102774940B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206410A (en) * | 1995-02-06 | 1996-08-13 | Okinawa Sanrotsukusu Kk | Coagulant for water treatment |
| CN1179890C (en) * | 2000-05-26 | 2004-12-15 | 陈井坤 | Copolymerized iron-aluminium water purifying agent and its preparation |
| CN1171803C (en) * | 2001-10-31 | 2004-10-20 | 沈阳中绿水务有限公司 | Sewage treating agent |
| US7097954B2 (en) * | 2004-01-28 | 2006-08-29 | Xerox Corporation | Toner processes |
| CN101327976B (en) * | 2008-07-15 | 2012-01-25 | 南通立源水业科技发展有限公司 | Efficient water treatment flocculant |
| CN101734772B (en) * | 2008-11-14 | 2013-01-30 | 北京石油化工学院 | Composite flocculant for treating industrial waste water and preparation method |
| CN101423278B (en) * | 2008-11-24 | 2012-09-05 | 中国科学院生态环境研究中心 | Multiple element composite metal oxidate arsenic removal settling agent and use method thereof |
-
2012
- 2012-07-18 CN CN2012102534470A patent/CN102774940B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102774940A (en) | 2012-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhao et al. | Comparison of a novel polytitanium chloride coagulant with polyaluminium chloride: coagulation performance and floc characteristics | |
| Ryu et al. | Application of struvite precipitation in treating ammonium nitrogen from semiconductor wastewater | |
| CN104085969B (en) | Spent acid is utilized to produce the method for compound polynary flocculant poly silicic acid chloro sulphuric acid ferro-aluminum | |
| CN106430495B (en) | A kind of preparation method of the composite decoloration flocculant for wastewater treatment | |
| CN107381749B (en) | Magnetic flocculant and preparation method and application thereof | |
| CN107601716A (en) | The method for improving guanite precipitation method processing ammonia nitrogen waste water efficiency | |
| CN103342406A (en) | Polymeric silicic acid-polyferric sulfate titanium inorganic macromolecular composite flocculant and preparation method and application thereof | |
| CN1385373A (en) | Coagulant for sewage treatment | |
| CN102689956A (en) | Silicon removing method for silicone waste water | |
| CN105000649A (en) | Preparation method for polysilicate aluminum magnesium-chitosan composite flocculant | |
| CN105016447A (en) | Preparation method of poly-silicon aluminum chitosan composite flocculant | |
| CN102689961B (en) | Desilication flocculant used in silica gel wastewater treatment | |
| CN101717123B (en) | Method for preparing modified poly-ferric chloride coagulant | |
| CN101492192B (en) | Coagulating agent for treating wastewater containing fluorine and use process thereof | |
| CN106006907A (en) | Flocculant for water sedimentation treatment | |
| CN106698536A (en) | Water purifier and preparation method thereof | |
| CN108658196A (en) | Industrial Wastewater Treatment composite flocculation agent | |
| CN102774940B (en) | Preparation method of flocculant for removing low-temperature low-turbidity phosphorous wastewater | |
| KR101297435B1 (en) | The preparing method of aluminium sulfate from waste water | |
| CN105060438A (en) | Efficient low-heavy metal liquid poly aluminum ferrous chloride composite coagulant and production method thereof | |
| CN110683622A (en) | Method for extracting aluminum in sludge to prepare aluminum-containing flocculant | |
| CN108793360A (en) | The composite flocculation agent of organics removal | |
| CN102491474A (en) | Feed raw water treatment flocculating agent and preparation method and application thereof | |
| KR20150103939A (en) | A inorganic coagulant of fluoride ion in water treatment and the preparation method thereof | |
| CN102774946A (en) | Preparation method of flocculant for removing low-temperature low-turbidity ammonia nitrogen wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lei Chunsheng Inventor after: Wang Qingsi Inventor before: Chen Yizhong Inventor before: Wang Qingsi |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN YIZHONG WANG QINGSI TO: LEI CHUNSHENG WANG QINGSI |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |