DK166788A - PROCEDURES FOR TREATING WASTE AND OTHER PURIFIED WATER - Google Patents

PROCEDURES FOR TREATING WASTE AND OTHER PURIFIED WATER

Info

Publication number
DK166788A
DK166788A DK166788A DK166788A DK166788A DK 166788 A DK166788 A DK 166788A DK 166788 A DK166788 A DK 166788A DK 166788 A DK166788 A DK 166788A DK 166788 A DK166788 A DK 166788A
Authority
DK
Denmark
Prior art keywords
discharge stream
cationic polymer
anionic polymer
treated discharge
added
Prior art date
Application number
DK166788A
Other languages
Danish (da)
Other versions
DK166788D0 (en
DK170557B1 (en
Inventor
Noel Connaughton
Anton Pohoreski
Original Assignee
Continental Mfg & Sales 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 Continental Mfg & Sales Inc filed Critical Continental Mfg & Sales Inc
Publication of DK166788D0 publication Critical patent/DK166788D0/en
Publication of DK166788A publication Critical patent/DK166788A/en
Application granted granted Critical
Publication of DK170557B1 publication Critical patent/DK170557B1/en

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
    • 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
    • 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

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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The process comprises adding all three of the following individually, or at most two, which are premixed, together, to the sewage or other impure water in a mixing zone: (a) an inorganic coagulant, (b) an anionic polymer, and (c) a cationic polymer, while intimately mixing the added chemicals and the sewage or other impure water, with the proviso that (d) the inorganic coagulant, either alone or together with the anionic polymer or the cationic polymer, cannot be added last, and that (e) the anionic polymer and the cationic polymer cannot be premixed and added together. This yields a chemically treated discharge stream which contains large, compact, thermally bound, essentially shearing effect-resistant and rapidly separable flocculates. The flocculates are separated from the liquid in a separation zone. Treated discharge stream is then removed from the separation zone. A previously determined quantity of the treated discharge stream is then recirculated, for example to the mixing zone or to another location which is determined by experimenting with the installation.
DK166788A 1986-08-04 1988-03-25 Process for treating sewage and other impure water by means of flocculation DK170557B1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US89283186A 1986-08-04 1986-08-04
US89283186 1986-08-04
IE113387 1987-05-07
IE113487 1987-05-07
IE113387 1987-05-07
IE113487 1987-05-07
PCT/GB1987/000549 WO1988000927A1 (en) 1986-08-04 1987-08-03 Method for the treatment of sewage and other impure water
GB8700549 1987-08-03

Publications (3)

Publication Number Publication Date
DK166788D0 DK166788D0 (en) 1988-03-25
DK166788A true DK166788A (en) 1988-03-25
DK170557B1 DK170557B1 (en) 1995-10-23

Family

ID=27270355

Family Applications (1)

Application Number Title Priority Date Filing Date
DK166788A DK170557B1 (en) 1986-08-04 1988-03-25 Process for treating sewage and other impure water by means of flocculation

Country Status (13)

Country Link
EP (1) EP0316348A1 (en)
JP (1) JPH02500724A (en)
KR (1) KR880701687A (en)
AU (1) AU621032B2 (en)
BR (1) BR8707785A (en)
CA (1) CA1334543C (en)
DK (1) DK170557B1 (en)
ES (1) ES2004466A6 (en)
FI (1) FI890533A0 (en)
GR (1) GR871232B (en)
NO (1) NO174416C (en)
PT (1) PT85484B (en)
WO (1) WO1988000927A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007354A1 (en) * 1989-11-15 1991-05-30 Irving Ainsworth (Holdings) Limited Water treatment method
ES2051223B1 (en) * 1992-06-24 1994-12-16 Titan Ind Sa CLEANING WATER TREATMENT AND RECOVERY PROCEDURE IN THE MANUFACTURING PROCESS OF WATER DISPERSION PAINTS.
CN1248972C (en) * 1998-11-07 2006-04-05 宝洁公司 Process and compsn. for water recycle
GB9916748D0 (en) 1999-07-19 1999-09-15 Ciba Spec Chem Water Treat Ltd Process for the flocculation of suspensions
US8353641B2 (en) 2008-02-14 2013-01-15 Soane Energy, Llc Systems and methods for removing finely dispersed particulate matter from a fluid stream
US8349188B2 (en) 2008-02-14 2013-01-08 Soane Mining, Llc Systems and methods for removing finely dispersed particulate matter from a fluid stream
JP6644607B2 (en) * 2016-03-30 2020-02-12 住友重機械エンバイロメント株式会社 Wastewater treatment system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173532A (en) * 1974-03-07 1979-11-06 Entenmann's, Inc. Method for treating plant effluent
JPS5473464A (en) * 1977-11-22 1979-06-12 Ebara Infilco Co Ltd Treatment of waste water
DE2802066C2 (en) * 1978-01-18 1986-05-28 Passavant-Werke AG & Co KG, 6209 Aarbergen Process for the chemical-mechanical treatment of groundwater, surface or wastewater
JPS6028894A (en) * 1983-07-26 1985-02-14 Kurita Water Ind Ltd Treatment of night soil
US4569768A (en) * 1983-10-07 1986-02-11 The Dow Chemical Company Flocculation of suspended solids from aqueous media
CH663202A5 (en) * 1985-01-31 1987-11-30 Escher Wyss Gmbh METHOD AND ARRANGEMENT FOR CLEANING THE RETURN WATER FROM DEINKING PLANTS.

Also Published As

Publication number Publication date
NO174416B (en) 1994-01-24
FI890533A (en) 1989-02-03
WO1988000927A1 (en) 1988-02-11
JPH02500724A (en) 1990-03-15
EP0316348A1 (en) 1989-05-24
NO881414D0 (en) 1988-03-29
KR880701687A (en) 1988-11-04
BR8707785A (en) 1989-08-15
DK166788D0 (en) 1988-03-25
AU621032B2 (en) 1992-03-05
GR871232B (en) 1988-02-18
PT85484A (en) 1987-09-01
DK170557B1 (en) 1995-10-23
ES2004466A6 (en) 1989-01-01
CA1334543C (en) 1995-02-21
AU7755787A (en) 1988-02-24
NO174416C (en) 1994-05-04
PT85484B (en) 1990-06-29
FI890533A0 (en) 1989-02-03
NO881414L (en) 1988-03-29

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
B1 Patent granted (law 1993)
PBP Patent lapsed