CN101746868A - Composite flocculant for treating oily wastewater - Google Patents
Composite flocculant for treating oily wastewater Download PDFInfo
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- CN101746868A CN101746868A CN 200810229855 CN200810229855A CN101746868A CN 101746868 A CN101746868 A CN 101746868A CN 200810229855 CN200810229855 CN 200810229855 CN 200810229855 A CN200810229855 A CN 200810229855A CN 101746868 A CN101746868 A CN 101746868A
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- composite flocculant
- flocculant
- flocculation agent
- chloride
- aluminum chloride
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Abstract
The invention provides a composite flocculant for treating oily industrial wastewater. The composite flocculant has the advantages that: the composite flocculant is compounded by a plurality of flocculants with different features and complementary performance, has the effects of demulsifying, flocculating and forming a bridge, and has the advantages of having large floc, high oil content of scruff, high separating speed with water, strong demulsifying capacity and good flocculation effect, improving the oil removing rate, reducing the scruff yield, the treatment cost, secondary pollution, and the like. The composite flocculant has small dosage, wide applicability and high sedimentation velocity. Under the condition of not changing the conventional wastewater treatment equipment, the composite flocculant can replace the conventionally-used flocculant.
Description
Technical field: the present invention relates to a kind of composite flocculation agent of handling oily(waste)water, be used for the processing of oil-containing industrial water.
Background technology: with the development of chemical engineering industry, pollution is on the rise, and the processing of trade effluent is extremely urgent.The processing of oil-containing industrial water is the difficult problem of wastewater treatment.Existing treatment agent, function are single relatively: the demulsification that has is good, but flocculating effect is poor; The flocculating effect that has is good, but settling velocity waits shortcoming slowly, and What is more, can cause secondary pollution.Though the way that has is good, consumption is big, has increased production cost.Invent a kind of consumption little, produce that slag is few, the breakdown of emulsion ability strong, wide adaptability, flocculating effect is good, settling velocity is fast, secondary pollution is little, cost is low flocculation agent be purpose of the present invention.
Summary of the invention: the invention provides a kind of composite flocculation agent of new processing oily(waste)water, make oily(waste)water after treatment, not only meet processing requirement, and the secondary pollutions such as mud scum silica frost that produce are much smaller than prior art.Under the condition that does not change present sewage disposal device, the flocculation agent of alternative present use.Improve oil removal rate, reduce the scum silica frost growing amount, reduce processing cost, reduce secondary pollution.
Characteristics of the present invention are to have adopted and differ from one another, and composite the forming of multiple flocculation agent of performance complement played the function of breakdown of emulsion, flocculation, bridge formation simultaneously, have that flco is big, the scum silica frost oleaginousness is high and advantages such as water sepn speed is fast, and its composition by mass ratio is:
Aluminium salt (5-30%); Calcium salt (2-20%); Molysite (2-20%); Polymerize aluminum chloride (5-40%); Xylo-Mucine (2-25%); Water glass (10-20%).Dicyanodiamide 5-30%, polymeric silicicacid iron 5-30%.
Used aluminium salt can be Tai-Ace S 150, aluminum chloride; Used calcium salt can be calcium oxide, nitrocalcite; Molysite can be a ferric sulfate, also can be ferrous sulfate; Used polymeric silicicacid iron also can be poly-sulphur iron(ic) chloride.
Embodiment 1: Tai-Ace S 150 15%, calcium chloride 10%, ferric sulfate 10%, polymerize aluminum chloride 20%, Xylo-Mucine 10%, water glass 10%, Dicyanodiamide 10%, polymeric silicicacid iron 15%.
Embodiment 2: aluminum chloride 15%, nitrocalcite 10%, ferric sulfate 10%, polymerize aluminum chloride 20%, Xylo-Mucine 10%, water glass 10%, Dicyanodiamide 10%, polymeric silicicacid iron 15%.
Embodiment 3: Tai-Ace S 150 15%, calcium chloride 10%, ferrous sulfate 10%, polymerize aluminum chloride 20%, Xylo-Mucine 10%, water glass 10%, Dicyanodiamide 10%, poly-ferric chloride 15%.
Embodiment 4: aluminum chloride 15%, nitrocalcite 10%, ferrous sulfate 10%, polymerize aluminum chloride 20%, Xylo-Mucine 10%, water glass 10%, Dicyanodiamide 10%, poly-sulphur iron(ic) chloride 15%.
Attention: after the powder of each component was mixed, the quality guaranteed period was 1 year.Overlong time need not, it is rotten to harden.
Claims (4)
1. a preparation method of handling the oily(waste)water composite flocculation agent is characterized in that being made up of aluminium salt, calcium salt, molysite, polymerize aluminum chloride, Xylo-Mucine, water glass, Dicyanodiamide, polymeric silicicacid iron.
2. by the described composite flocculation agent of claim 1, it is characterized in that: its used aluminium salt can be Tai-Ace S 150, aluminum chloride; Used calcium salt can be calcium chloride, nitrocalcite; Molysite can be a ferric sulfate, also can be ferrous sulfate.
3. by the described composite flocculation agent of claim 1-2, it is characterized in that used polymeric silicicacid iron also can be with gathering sulphur iron(ic) chloride.
4. by the described composite flocculation agent of claim 1-3, it is characterized in that: each is formed with solid powdery and mixes, and by mass ratio is: aluminium salt (5-30%); Calcium salt (2-20%); Molysite (2-20%); Polymerize aluminum chloride (5-40%); Xylo-Mucine (2-25%); Water glass is (10-20%); Dicyanodiamide 5-30%; Polymeric silicicacid iron 5-30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810229855 CN101746868B (en) | 2008-12-17 | 2008-12-17 | Composite flocculant for treating oily wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810229855 CN101746868B (en) | 2008-12-17 | 2008-12-17 | Composite flocculant for treating oily wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101746868A true CN101746868A (en) | 2010-06-23 |
| CN101746868B CN101746868B (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200810229855 Expired - Fee Related CN101746868B (en) | 2008-12-17 | 2008-12-17 | Composite flocculant for treating oily wastewater |
Country Status (1)
| Country | Link |
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| CN (1) | CN101746868B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531126A (en) * | 2012-01-09 | 2012-07-04 | 南京大学 | Method for treating papermaking black liquor with composite coagulation method |
| CN103043762A (en) * | 2012-12-27 | 2013-04-17 | 惠州市保家环境工程有限公司 | Flocculant for water treatment |
| CN103204574A (en) * | 2013-03-23 | 2013-07-17 | 北京化工大学 | Preparation method and application of cellulose graft boracic polyaluminum ferric silicate composite flocculant |
| CN104787867A (en) * | 2015-05-04 | 2015-07-22 | 李练红 | Flocculant for river/lake water body original ecological restoration and application thereof |
| CN105253974A (en) * | 2015-10-30 | 2016-01-20 | 广州振清环保技术有限公司 | Invert-demulsion coagulating agent, preparation method of invert-demulsion coagulating agent and application of invert-demulsion coagulating agent |
| CN105461081A (en) * | 2015-12-09 | 2016-04-06 | 天津大港油田滨港集团博弘石油化工有限公司 | Composite flocculant for treating oilfield sewage and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325391C (en) * | 2006-03-17 | 2007-07-11 | 重庆市化工研究院 | Method of producing poly aluminium iron silicate composite flocculating agent using fly ash and ferrous sulphate |
| CN100497193C (en) * | 2007-03-05 | 2009-06-10 | 武汉钢铁(集团)公司 | High polymer composite coagulant for treatment of oily waste water and making method thereof |
| CN100500589C (en) * | 2007-06-21 | 2009-06-17 | 北京科技大学 | Boron-containing polysilic aluminum ferric sulfate composite flocculant |
-
2008
- 2008-12-17 CN CN 200810229855 patent/CN101746868B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531126A (en) * | 2012-01-09 | 2012-07-04 | 南京大学 | Method for treating papermaking black liquor with composite coagulation method |
| CN102531126B (en) * | 2012-01-09 | 2014-02-12 | 南京大学 | Method for treating papermaking black liquor with composite coagulation method |
| CN103043762A (en) * | 2012-12-27 | 2013-04-17 | 惠州市保家环境工程有限公司 | Flocculant for water treatment |
| CN103204574A (en) * | 2013-03-23 | 2013-07-17 | 北京化工大学 | Preparation method and application of cellulose graft boracic polyaluminum ferric silicate composite flocculant |
| CN103204574B (en) * | 2013-03-23 | 2014-06-04 | 北京化工大学 | Preparation method and application of cellulose graft boracic polyaluminum ferric silicate composite flocculant |
| CN104787867A (en) * | 2015-05-04 | 2015-07-22 | 李练红 | Flocculant for river/lake water body original ecological restoration and application thereof |
| CN105253974A (en) * | 2015-10-30 | 2016-01-20 | 广州振清环保技术有限公司 | Invert-demulsion coagulating agent, preparation method of invert-demulsion coagulating agent and application of invert-demulsion coagulating agent |
| CN105461081A (en) * | 2015-12-09 | 2016-04-06 | 天津大港油田滨港集团博弘石油化工有限公司 | Composite flocculant for treating oilfield sewage and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101746868B (en) | 2013-05-29 |
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