SE9903594D0 - Cationic polymers for sludge dewatering - Google Patents
Cationic polymers for sludge dewateringInfo
- Publication number
- SE9903594D0 SE9903594D0 SE9903594A SE9903594A SE9903594D0 SE 9903594 D0 SE9903594 D0 SE 9903594D0 SE 9903594 A SE9903594 A SE 9903594A SE 9903594 A SE9903594 A SE 9903594A SE 9903594 D0 SE9903594 D0 SE 9903594D0
- Authority
- SE
- Sweden
- Prior art keywords
- flocculant
- composition
- sludge
- weight
- aid
- Prior art date
Links
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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
-
- 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
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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
A method and a composition for dewatering sludges are described. The method for dewatering sludges includes treating the sludge with a flocculant aid and with a flocculant, whereafter the sludge is dewatered. The method is characterised in that the flocculant aid is an inorganic compound; the flocculant aid and the flocculant are provided as a solid composition comprising 0.1-10 parts by weight of flocculant aid per part by weight of flocculant; water is added to the composition to provide an aqueous solution or dispersion of the composition; said aqueous composition is added to the sludge; and that the sludge is dewatered. The composition for dewatering sludges is characterised in that it comprises a mixture of a solid inorganic flocculant aid with a solid flocculant at a ratio of 0.1-10 parts by weight of flocculant aid per part by weight of flocculant.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9903594A SE9903594L (en) | 1999-10-06 | 1999-10-06 | Cationic polymers for sludge dewatering |
AU79787/00A AU7978700A (en) | 1999-10-06 | 2000-10-05 | Cationic polymers for sludge dewatering |
PCT/SE2000/001922 WO2001025156A1 (en) | 1999-10-06 | 2000-10-05 | Cationic polymers for sludge dewatering |
CN00814895A CN1384806A (en) | 1999-10-06 | 2000-10-05 | Cationic polymers for sludge dewatering |
EP00970398A EP1242316A1 (en) | 1999-10-06 | 2000-10-05 | Cationic polymers for sludge dewatering |
KR1020027004390A KR20020080327A (en) | 1999-10-06 | 2000-10-05 | Cationic polymers for sludge dewatering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9903594A SE9903594L (en) | 1999-10-06 | 1999-10-06 | Cationic polymers for sludge dewatering |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9903594D0 true SE9903594D0 (en) | 1999-10-06 |
SE9903594L SE9903594L (en) | 2001-04-07 |
Family
ID=20417259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9903594A SE9903594L (en) | 1999-10-06 | 1999-10-06 | Cationic polymers for sludge dewatering |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1242316A1 (en) |
KR (1) | KR20020080327A (en) |
CN (1) | CN1384806A (en) |
AU (1) | AU7978700A (en) |
SE (1) | SE9903594L (en) |
WO (1) | WO2001025156A1 (en) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10147658A1 (en) * | 2001-09-27 | 2003-04-10 | Cu Chemie Uetikon Ag Uetikon | Composition and its use as a coagulant and flocculant |
KR100460461B1 (en) * | 2002-05-30 | 2004-12-08 | 주식회사 에코다임 | Immobilized Body of Biological Material, and Apparatus for Manufacturing the Body |
WO2006056022A1 (en) * | 2004-11-26 | 2006-06-01 | Hardman Australia Pty Ltd | Water treatment process |
AU2005309336C1 (en) * | 2004-11-26 | 2011-01-06 | Hardman Chemicals Pty Ltd | Water treatment process |
US7378023B2 (en) * | 2006-09-13 | 2008-05-27 | Nalco Company | Method of improving membrane bioreactor performance |
CN101337759B (en) * | 2008-08-18 | 2010-06-02 | 哈尔滨工业大学 | Dewatering process for domestic sludge |
CN101708879B (en) * | 2009-08-11 | 2012-02-01 | 上海沃杉化工有限公司 | Inorganic-organic composite flocculating agent and preparation method thereof |
CN101811764B (en) * | 2010-04-29 | 2012-07-04 | 南京神克隆科技有限公司 | Efficient ecological type sewage and sludge treating agent and preparation method thereof |
CN101857352A (en) * | 2010-06-13 | 2010-10-13 | 东南大学 | Conditioning coagulant for deep dehydrating sludge |
CN101863611A (en) * | 2010-06-13 | 2010-10-20 | 东南大学 | Method for deeply dehydrating sludge |
CN102153267A (en) * | 2011-04-15 | 2011-08-17 | 复旦大学 | Method for modifying and dewatering sludge |
CN103073169A (en) * | 2011-10-25 | 2013-05-01 | 纳尔科公司 | Sludge dehydration adopting dual polymer processing |
CN102744162B (en) * | 2012-07-18 | 2013-10-23 | 中蓝连海设计研究院 | Selective flocfloatation method for talcose rocks |
CA2863319A1 (en) * | 2013-09-17 | 2015-03-17 | Icm, Inc. | Chemical process to remove suspended solids |
US9328007B2 (en) | 2014-02-27 | 2016-05-03 | Hong Kong Baptist University | Biogenic flocculant composition to enhance flocculation and dewaterability of chemically enhanced primary treatment sludge |
CN104016567B (en) * | 2014-05-28 | 2016-04-20 | 中国科学院武汉岩土力学研究所 | A kind of mud magnetic dewatering agent and dewatering thereof |
CN105217924A (en) * | 2014-09-18 | 2016-01-06 | 江苏宝进生化有限公司 | A kind of low temperature pyrolyzer domestic sludge dewatering agent and using method thereof |
CN104692610A (en) * | 2015-02-03 | 2015-06-10 | 无锡金园污泥处置新型燃料科技有限公司 | Method for preparing cement raw materials from industrial sludge |
CN105152294A (en) * | 2015-09-09 | 2015-12-16 | 天津工业大学 | Preparation method and application of flocculant for treating urban sewage |
CN105218758B (en) * | 2015-10-14 | 2017-09-29 | 成都理工大学 | Containing nanometer Fe (OH)3The preparation method of graft acrylamide copolymer flocculant |
CN107746171A (en) * | 2016-11-25 | 2018-03-02 | 嘉兴锦润环保科技有限公司 | A kind of High Efficiency Agent of Sludge Dehydration |
CN106630542A (en) * | 2016-11-29 | 2017-05-10 | 西安理工大学 | Flocculant for treating slurry, preparation method and slurry treatment method |
CN107986415A (en) * | 2017-12-08 | 2018-05-04 | 周爱国 | A kind of sludge separation formula and preparation method thereof |
CN108314280B (en) * | 2018-01-12 | 2019-01-15 | 广州市水电建设工程有限公司 | A kind of sludge curing agent and preparation method thereof |
CN109081555A (en) * | 2018-09-10 | 2018-12-25 | 东莞市凯威尔环保材料有限公司 | A kind of diaphragm filter press sludge dewatering agent |
CN109020128A (en) * | 2018-09-10 | 2018-12-18 | 东莞市凯威尔环保材料有限公司 | A kind of preparation method and application of organic sludge dehydrating agent |
CN109336359A (en) * | 2018-10-19 | 2019-02-15 | 上海同臣环保有限公司 | Sludge Chemical Conditioning deep dehydration method and deeply dehydrating sludge improve medicament |
CN110228932A (en) * | 2019-07-18 | 2019-09-13 | 广州晓橙环保科技有限公司 | A kind of sludge conditioner and its application method |
CN110860546A (en) * | 2019-11-28 | 2020-03-06 | 天津凯英科技发展股份有限公司 | Sludge-based covering material for refuse landfill and preparation method thereof |
CN111470752A (en) * | 2020-04-20 | 2020-07-31 | 深圳市源清环境技术服务有限公司 | Conditioner for dewatering dredged sediment and dewatering method for dredged sediment |
CN112125496A (en) * | 2020-08-12 | 2020-12-25 | 浙江维美环保工程科技有限公司 | Production process for dehydrating and curing sludge |
CN112897820A (en) * | 2021-03-30 | 2021-06-04 | 三亚易可霖环保科技有限公司 | Equipment and method for treating sewage by talcum powder high-concentration activated sludge process |
CN114085025A (en) * | 2021-12-08 | 2022-02-25 | 内蒙古美赢环保科技有限公司 | Application method and application of treatment agent |
CN114716119A (en) * | 2022-02-28 | 2022-07-08 | 中国地质大学(武汉) | Coupling treatment method for bottom sediment conditioning and pollutant resistance control |
CN114933405A (en) * | 2022-05-20 | 2022-08-23 | 中铁上海工程局集团市政环保工程有限公司 | River sediment dehydrating agent, river sediment dehydrating method and recycling method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5658598A (en) * | 1979-10-17 | 1981-05-21 | Agency Of Ind Science & Technol | Treatment of muddy water |
SE446969B (en) * | 1983-12-09 | 1986-10-20 | Olof Carlsson | WAY TO MAKE A FLOCKING AGENT |
US4588508A (en) * | 1984-11-13 | 1986-05-13 | Nalco Cehmical Company | Bimodal cationics for water clarification |
US5681475A (en) * | 1995-04-13 | 1997-10-28 | Truetech, Inc. | Water purification composition, kit and method employing the same |
US5738794A (en) * | 1996-10-03 | 1998-04-14 | Cytec Technology Corp. | Cationic water-soluble polymer preciptation in salt solutions |
SE512118C2 (en) * | 1997-05-30 | 2000-01-31 | Tord Georg Eriksson | Procedure for water purification |
-
1999
- 1999-10-06 SE SE9903594A patent/SE9903594L/en not_active Application Discontinuation
-
2000
- 2000-10-05 AU AU79787/00A patent/AU7978700A/en not_active Abandoned
- 2000-10-05 KR KR1020027004390A patent/KR20020080327A/en not_active Application Discontinuation
- 2000-10-05 EP EP00970398A patent/EP1242316A1/en not_active Withdrawn
- 2000-10-05 CN CN00814895A patent/CN1384806A/en active Pending
- 2000-10-05 WO PCT/SE2000/001922 patent/WO2001025156A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE9903594L (en) | 2001-04-07 |
AU7978700A (en) | 2001-05-10 |
EP1242316A1 (en) | 2002-09-25 |
CN1384806A (en) | 2002-12-11 |
WO2001025156A8 (en) | 2002-01-10 |
WO2001025156A1 (en) | 2001-04-12 |
KR20020080327A (en) | 2002-10-23 |
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Legal Events
Date | Code | Title | Description |
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NAV | Patent application has lapsed |