GB1491501A - Anaerobic digestion of water-polluting waste material - Google Patents

Anaerobic digestion of water-polluting waste material

Info

Publication number
GB1491501A
GB1491501A GB2346774A GB2346774A GB1491501A GB 1491501 A GB1491501 A GB 1491501A GB 2346774 A GB2346774 A GB 2346774A GB 2346774 A GB2346774 A GB 2346774A GB 1491501 A GB1491501 A GB 1491501A
Authority
GB
United Kingdom
Prior art keywords
waste material
liquid containing
liquid
solids
tank
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
GB2346774A
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 GB2346774A priority Critical patent/GB1491501A/en
Priority to FR7516284A priority patent/FR2272043B1/fr
Priority to IN774/CAL/1976A priority patent/IN145307B/en
Publication of GB1491501A publication Critical patent/GB1491501A/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
    • C02F3/2806—Anaerobic processes using solid supports for microorganisms
    • 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

Abstract

1491501 Anaerobic digestion of water polluting waste material BIOMECHANICS Ltd 22 May 1975 [24 May 1974] 23467/74 Heading ClC A method of treating biodegradable waste material by anaerobic digestion comprises the steps of (a) agitating liquid containing waste material within a closed tank and digesting the waste material anaerobically, (b) ceasing agitation of the liquid containing the waste material and allowing solids in the liquid containing waste material to settle for a predetermined period of time, (c) withdrawing from the tank an upper layer of liquid having a solids concentration which is substantially less than the average concentration of the solids in the liquid containing the waste material, and (d) further agitating the liquid containing the waste material within the tank together with a further volume of liquid containing waste material substantially equal in volume to the upper layer of liquid which is withdrawn from the tank. The waste material may be water polluting material. The solids on which the gas bubbles have accumulated may be physically prevented from floating into the upper layer of liquid by a packing material which floats, e.g. plastic Raschig rings, or by a metal grid. Inert particulate material having a density greater than the density of the waste material and a particle size similar to the size of the bacteria (e.g. fly ash or digested sewage) may be added at the digestion stage to assist settling.
GB2346774A 1974-05-24 1974-05-24 Anaerobic digestion of water-polluting waste material Expired GB1491501A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2346774A GB1491501A (en) 1974-05-24 1974-05-24 Anaerobic digestion of water-polluting waste material
FR7516284A FR2272043B1 (en) 1974-05-24 1975-05-26
IN774/CAL/1976A IN145307B (en) 1974-05-24 1976-05-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2346774A GB1491501A (en) 1974-05-24 1974-05-24 Anaerobic digestion of water-polluting waste material

Publications (1)

Publication Number Publication Date
GB1491501A true GB1491501A (en) 1977-11-09

Family

ID=10196090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2346774A Expired GB1491501A (en) 1974-05-24 1974-05-24 Anaerobic digestion of water-polluting waste material

Country Status (3)

Country Link
FR (1) FR2272043B1 (en)
GB (1) GB1491501A (en)
IN (1) IN145307B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7968057B2 (en) 2004-11-23 2011-06-28 Estech Europe Limited Autoclave

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT392460B (en) * 1986-11-20 1991-04-10 Waagner Biro Ag METHOD FOR BIOLOGICAL WASTE WATER TREATMENT
CN108423828A (en) * 2018-05-15 2018-08-21 中国科学院兰州化学物理研究所 A kind of potato starch processing waste water qualified discharge processing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7968057B2 (en) 2004-11-23 2011-06-28 Estech Europe Limited Autoclave

Also Published As

Publication number Publication date
FR2272043B1 (en) 1982-09-17
IN145307B (en) 1978-09-23
FR2272043A1 (en) 1975-12-19

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Legal Events

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