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GB1491502A - Anaerobic digestion of water-polluting waste material - Google Patents

Anaerobic digestion of water-polluting waste material

Info

Publication number
GB1491502A
GB1491502A GB2239075A GB2239075A GB1491502A GB 1491502 A GB1491502 A GB 1491502A GB 2239075 A GB2239075 A GB 2239075A GB 2239075 A GB2239075 A GB 2239075A GB 1491502 A GB1491502 A GB 1491502A
Authority
GB
United Kingdom
Prior art keywords
treated liquid
sludge
liquid
waste material
reduction
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
GB2239075A
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.)
BIOMECH Ltd
Original Assignee
BIOMECH Ltd
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 BIOMECH Ltd filed Critical BIOMECH Ltd
Priority to GB2239075A priority Critical patent/GB1491502A/en
Publication of GB1491502A publication Critical patent/GB1491502A/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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

1491502 Anaerobic digestion of water polluting waste material BIOMECHANICS Ltd 22 May 1975 [24 May 1974] 22390/75 Divided out of 1491501 Heading ClC A method of treating biodegradable waste material comprises the steps of submitting the waste material to anaerobic digestion to provide a treated liquid, subjecting the treated liquid to a thermal shock which is effected by a reduction in temperature of the treated liquid, which reduction in temperature is of such magnitude and is effected at such a rate of cooling that the gas-producing activity of anaerobic bacteria in the treated liquid is substantially inhibited, allowing the cooled treated liquid to settle, whereby bacteria in the cooled treated liquid sink in the liquid to leave a layer of sludge above which is a relatively clear liquid, and separately removing the sludge and the relatively clear liquid before the bacteria in the sludge regain sufficient gas producing activity to raise substantial quantities of solids in the sludge into the relatively clear liquid. The thermal shock preferably effects a reduction in temperature of the treated liquid of at least 8‹ C. in a period not exceeding ten minutes. The upper layer may be separated from the sludge by a region containing packing material which is capable of causing solids to be stripped from gas bubbles, such as Raschig rings made of a plastics material. A gas lift pump may be used to pass the treated liquid through the cooler. Effluents from factories operating the wheat starch/gluten/dextrose process, abbatoirs, confectionery factories, and creameries; single cell protein processes, wine making, domestic sewage, breweries, distilleries, meat processing, milk or dairy products, paper processing, sugar refining and textile processing are among the other sources of effluent mentioned.
GB2239075A 1975-05-22 1975-05-22 Anaerobic digestion of water-polluting waste material Expired GB1491502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2239075A GB1491502A (en) 1975-05-22 1975-05-22 Anaerobic digestion of water-polluting waste material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2239075A GB1491502A (en) 1975-05-22 1975-05-22 Anaerobic digestion of water-polluting waste material

Publications (1)

Publication Number Publication Date
GB1491502A true GB1491502A (en) 1977-11-09

Family

ID=10178608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2239075A Expired GB1491502A (en) 1975-05-22 1975-05-22 Anaerobic digestion of water-polluting waste material

Country Status (1)

Country Link
GB (1) GB1491502A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024701A2 (en) * 1979-09-04 1981-03-11 Hoechst Aktiengesellschaft Gas separation in liquid/gas reactors
EP0058247A1 (en) * 1981-02-09 1982-08-25 GebràœDer Sulzer Aktiengesellschaft Process and apparatus for the anaerobic purification of liquids containing organic substances
EP0139976A1 (en) * 1983-08-25 1985-05-08 Linde Aktiengesellschaft Apparatus for the anaerobic decomposition of organic substances
GB2149390A (en) * 1983-09-21 1985-06-12 Biomass International Anaerobic fermentation process
EP0153299A1 (en) * 1984-02-14 1985-08-28 Nöbl, Ernst Dipl.Ing. Process and plant for the anaerobic treatment of organic substrates
DE3411264A1 (en) * 1984-03-27 1985-10-10 Lorenz 8206 Bruckmühl Kirmair METHOD AND DEVICE FOR PRODUCING BIOGAS
EP0182955A1 (en) * 1984-11-20 1986-06-04 GebràœDer Sulzer Aktiengesellschaft Reaction vessel
EP0342722A1 (en) * 1988-05-09 1989-11-23 Machinefabriek Meyn B.V. Apparatus and method for anaerobic purification of waste water
EP0366186A1 (en) * 1988-10-17 1990-05-02 DHV Water B.V. Upflow sludge-bed reactor for anaerobic purification
EP1251104A1 (en) * 2001-04-18 2002-10-23 Seghers Better Technology for water A method for processing yeast-containing waste flows in an anaerobic reactor
JP2006051490A (en) * 2004-01-15 2006-02-23 Sumitomo Heavy Ind Ltd Anaerobic treatment apparatus and anaerobic treatment method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024701A2 (en) * 1979-09-04 1981-03-11 Hoechst Aktiengesellschaft Gas separation in liquid/gas reactors
EP0024701A3 (en) * 1979-09-04 1981-03-25 Hoechst Aktiengesellschaft Gas separation in liquid/gas reactors
US4455156A (en) * 1979-09-04 1984-06-19 Hoechst Aktiengesellschaft Process for improving the gas separation in liquid/gas reactors
EP0058247A1 (en) * 1981-02-09 1982-08-25 GebràœDer Sulzer Aktiengesellschaft Process and apparatus for the anaerobic purification of liquids containing organic substances
EP0139976A1 (en) * 1983-08-25 1985-05-08 Linde Aktiengesellschaft Apparatus for the anaerobic decomposition of organic substances
GB2149390A (en) * 1983-09-21 1985-06-12 Biomass International Anaerobic fermentation process
EP0153299A1 (en) * 1984-02-14 1985-08-28 Nöbl, Ernst Dipl.Ing. Process and plant for the anaerobic treatment of organic substrates
WO1985003695A1 (en) * 1984-02-14 1985-08-29 Noebl Ernst Process and plant for the anaerobic treatment of organic substrates
US4746433A (en) * 1984-02-14 1988-05-24 Ernst Nobl Process for the anaerobic treatment of organic substrates
DE3411264A1 (en) * 1984-03-27 1985-10-10 Lorenz 8206 Bruckmühl Kirmair METHOD AND DEVICE FOR PRODUCING BIOGAS
EP0182955A1 (en) * 1984-11-20 1986-06-04 GebràœDer Sulzer Aktiengesellschaft Reaction vessel
EP0342722A1 (en) * 1988-05-09 1989-11-23 Machinefabriek Meyn B.V. Apparatus and method for anaerobic purification of waste water
EP0366186A1 (en) * 1988-10-17 1990-05-02 DHV Water B.V. Upflow sludge-bed reactor for anaerobic purification
EP1251104A1 (en) * 2001-04-18 2002-10-23 Seghers Better Technology for water A method for processing yeast-containing waste flows in an anaerobic reactor
JP2006051490A (en) * 2004-01-15 2006-02-23 Sumitomo Heavy Ind Ltd Anaerobic treatment apparatus and anaerobic treatment method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee