ZA976642B - Methods for sludge dewatering. - Google Patents

Methods for sludge dewatering.

Info

Publication number
ZA976642B
ZA976642B ZA9706642A ZA976642A ZA976642B ZA 976642 B ZA976642 B ZA 976642B ZA 9706642 A ZA9706642 A ZA 9706642A ZA 976642 A ZA976642 A ZA 976642A ZA 976642 B ZA976642 B ZA 976642B
Authority
ZA
South Africa
Prior art keywords
methods
sludge dewatering
dewatering
sludge
Prior art date
Application number
ZA9706642A
Other languages
English (en)
Inventor
Stephen R Vasconcellos
Michael R Wood
Kimberly A Bell
Original Assignee
Betzdearborn Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Betzdearborn Inc filed Critical Betzdearborn Inc
Publication of ZA976642B publication Critical patent/ZA976642B/xx

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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)
ZA9706642A 1996-11-21 1997-07-25 Methods for sludge dewatering. ZA976642B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/749,368 US5720887A (en) 1996-11-21 1996-11-21 Methods for sludge dewatering

Publications (1)

Publication Number Publication Date
ZA976642B true ZA976642B (en) 1998-02-10

Family

ID=25013459

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9706642A ZA976642B (en) 1996-11-21 1997-07-25 Methods for sludge dewatering.

Country Status (4)

Country Link
US (1) US5720887A (fr)
AU (1) AU4348497A (fr)
WO (1) WO1998022398A1 (fr)
ZA (1) ZA976642B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7998351B2 (en) * 2006-12-22 2011-08-16 Vinod Kumar Rai Tannin based polymeric coagulants composition and method of use
US20110084029A1 (en) * 2009-10-08 2011-04-14 Dominick O' Reilly Waste treatment system
US20110089097A1 (en) * 2009-10-19 2011-04-21 O'reilly Dominick Attachment and system for dewatering material
US20110094395A1 (en) * 2009-10-26 2011-04-28 O'reilly Dominick Method and attachment for dewatering logs
KR101925666B1 (ko) 2012-04-18 2018-12-11 비엘 테크놀러지스 인크. 코크스 공장의 플러싱 용액 시스템의 처리 방법
WO2014027122A1 (fr) 2012-08-16 2014-02-20 Acciona Agua, S.A.U. Système et procédé pour le traitement des eaux
US9963365B2 (en) * 2012-08-21 2018-05-08 Ecolab Usa Inc. Process and system for dewatering oil sands fine tailings
EP2711347A1 (fr) * 2012-09-21 2014-03-26 HeidelbergCement AG Procédé et moyen destinés à préparer des agrégats
US20140124452A1 (en) 2012-11-07 2014-05-08 General Electric Company Methods for removing mercury from wastewater streams
US9446416B2 (en) 2012-11-28 2016-09-20 Ecolab Usa Inc. Composition and method for improvement in froth flotation
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
US10053383B2 (en) 2014-07-24 2018-08-21 Hong Kong Baptist University BioFerric-flocculant enhanced primary treatment process (BEPT) for sewage treatment
US20230357067A1 (en) * 2022-05-04 2023-11-09 Solenis Technologies, L.P. Cationic emulsion terpolymer to increase cake solids in centrifuges

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023162A (en) * 1956-04-10 1962-02-27 Rohm & Haas Dewatering aqueous suspensions with quaternized dialkylaminoalkyl acrylates or methacrylates
US3915904A (en) * 1972-08-25 1975-10-28 Betz Laboratories Water-soluble cationic polymeric materials and their use
US3894945A (en) * 1973-04-02 1975-07-15 American Cyanamid Co Process for raw water clarification
US3962159A (en) * 1975-02-03 1976-06-08 National Starch And Chemical Corporation Graft copolymers of a polyamideamine substrate and starch, and method of making same
US4396752A (en) * 1977-05-16 1983-08-02 Societe Francaise Hoechst Strong cationic polyelectrolytes in powder form based on acrylamide and quaternized or salified dimethylaminoethyl acrylate for flocculation of solid material suspensions and coalescence of emulsions
FR2390983A1 (fr) * 1977-05-16 1978-12-15 Hoechst France Polyelectrolytes cationiques en poudre, a base d'acrylamide et d'acrylate de dimethyl-aminoethyle quaternise ou salifie, leur procede d'obtention et leur utilisation
US4840736A (en) * 1980-11-29 1989-06-20 Basf Aktiengesellschaft Process for producing combustible sewage sludge filter cakes in filter presses
US4396513A (en) * 1981-09-08 1983-08-02 Betz Laboratories, Inc. Use of very high charge cationic polymers in biological sludge dewatering
JPS58183999A (ja) * 1982-04-21 1983-10-27 Kurita Water Ind Ltd 汚泥脱水法
JPS6038200B2 (ja) * 1982-04-22 1985-08-30 栗田工業株式会社 汚泥脱水法
JPS6125699A (ja) * 1984-07-13 1986-02-04 Ebara Infilco Co Ltd 有機性汚泥の脱水方法
JPS63151397A (ja) * 1986-12-15 1988-06-23 Nippon Steel Corp 鋼板等の塩酸酸洗廃液中のケイ素化合物の除去方法
US4758353A (en) * 1987-06-19 1988-07-19 Nalco Chemical Company Removal of heavy metals from waste streams
JPH01310800A (ja) * 1988-06-10 1989-12-14 Aoki Corp 汚泥凝集方法
US4869829A (en) * 1988-06-29 1989-09-26 Nalco Chemical Company Process for separating solids with a keratin filter aid
US5100561A (en) * 1990-06-06 1992-03-31 Betz Laboratories, Inc. Cationic polymers for sludge dewatering
US5211854A (en) * 1991-04-25 1993-05-18 Betz Laboratories, Inc. Water soluble graft copolymers and methods of use thereof
US5200086A (en) * 1991-08-20 1993-04-06 Nalco Chemical Company Emulsion destabilization and treatment

Also Published As

Publication number Publication date
AU4348497A (en) 1998-06-10
WO1998022398A1 (fr) 1998-05-28
US5720887A (en) 1998-02-24

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