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GB851416A - Improvements in or relating to processes for removing water from raw or activated sludge - Google Patents

Improvements in or relating to processes for removing water from raw or activated sludge

Info

Publication number
GB851416A
GB851416A GB7502/57A GB750257A GB851416A GB 851416 A GB851416 A GB 851416A GB 7502/57 A GB7502/57 A GB 7502/57A GB 750257 A GB750257 A GB 750257A GB 851416 A GB851416 A GB 851416A
Authority
GB
United Kingdom
Prior art keywords
removing water
relating
raw
processes
activated sludge
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
Application number
GB7502/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
L VON ROLL AG
Original Assignee
L VON ROLL AG
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 L VON ROLL AG filed Critical L VON ROLL AG
Publication of GB851416A publication Critical patent/GB851416A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

In a process for removing water from sludge, the sludge is heated for at least two hours at a temperature above 175 DEG C., at the end of which treatment the sludge still contains water, which is subsequently extracted, at least in part by a centrifuge or by filtering. Mean temperature and time values are given as 200 DEG C.-230 DEG C. and 2 to 2 1/2 hours.
GB7502/57A 1956-12-19 1957-03-06 Improvements in or relating to processes for removing water from raw or activated sludge Expired GB851416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH851416X 1956-12-19

Publications (1)

Publication Number Publication Date
GB851416A true GB851416A (en) 1960-10-19

Family

ID=4542320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7502/57A Expired GB851416A (en) 1956-12-19 1957-03-06 Improvements in or relating to processes for removing water from raw or activated sludge

Country Status (1)

Country Link
GB (1) GB851416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507788A (en) * 1968-11-29 1970-04-21 Texaco Inc Treatment of sewage
GB2160435A (en) * 1984-06-19 1985-12-24 Simonacco Ltd A process for dewatering a coal slurry
EP0460814A1 (en) * 1990-05-31 1991-12-11 Pori International, Inc. Process for enhancing the dewaterability of waste sludge from microbiological digestion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507788A (en) * 1968-11-29 1970-04-21 Texaco Inc Treatment of sewage
GB2160435A (en) * 1984-06-19 1985-12-24 Simonacco Ltd A process for dewatering a coal slurry
EP0460814A1 (en) * 1990-05-31 1991-12-11 Pori International, Inc. Process for enhancing the dewaterability of waste sludge from microbiological digestion

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