EP 0000293 A1 19790110 - Apparatus and method for anaerobic digestion of biodegradable waste material.
Title (en)
Apparatus and method for anaerobic digestion of biodegradable waste material.
Title (de)
Vorrichtung und Verfahren zur anaeroben Zersetzung von biologisch abbaubarem Abfall.
Title (fr)
Appareil et méthode pour la digestion anaérobe de déchets biodégradables.
Publication
Application
Priority
GB 2818377 A 19770705
Abstract (en)
[origin: US4179220A] Apparatus for anaerobic digestion of biodegradable waste material comprises a closed substantially vertical cylindrical tank containing a mixing assembly which comprises an annular gas-holding member connected to a gas distribution arm extending substantially radially outwardly from the annular gas-holding member towards the periphery of the tank. Both the annular gas-holding member and the gas distribution arm have open lower surfaces, and the gas distribution arm has exhaust apertures spaced along the length of the arm for delivering gas from the gas-holding member at different radial distances along the arm. The mixing assembly is rotatable about the central axis of the tank, with which axis the annular gas-holding member is concentrically located, and gas is supplied to the gas-holding member by a gas delivery duct having an outlet disposed beneath a part of the annulus defined by the annular gas-holding member.
IPC 1-7
IPC 8 full level
B01F 3/04 (2006.01); B01F 3/08 (2006.01); B01F 7/00 (2006.01); B01F 15/00 (2006.01); C02F 3/12 (2006.01); C02F 3/20 (2006.01); C02F 3/28 (2006.01)
CPC (source: EP US)
B01F 23/2331 (2022.01 - EP US); B01F 23/23311 (2022.01 - EP); B01F 23/23314 (2022.01 - EP); B01F 23/2368 (2022.01 - EP US); B01F 23/454 (2022.01 - EP US); B01F 27/15 (2022.01 - EP US); C02F 3/1284 (2013.01 - EP US); C02F 3/205 (2013.01 - EP US); C02F 3/28 (2013.01 - EP US); B01F 23/23311 (2022.01 - US); B01F 23/23314 (2022.01 - US); B01F 27/1125 (2022.01 - EP US); B01F 27/13 (2022.01 - EP US); Y02W 10/10 (2015.05 - EP US); Y02W 30/40 (2015.05 - EP US)
Citation (search report)
- FR 2099090 A5 19720310 - SCHNYDER HANS
- US 2768136 A 19561023 - WRIGHT CARL D
- [A] FR 1174321 A 19590310 - DORR OLIVER INC
- [A] US 2173932 A 19390926 - BUCKLEY DUER H
- [A] US 1887490 A 19321115 - KARL IMHOFF
Designated contracting state (EPC)
BE CH DE FR
DOCDB simple family (publication)
EP 0000293 A1 19790110; EP 0000293 B1 19820602; AU 3778678 A 19800110; AU 519474 B2 19811203; CA 1091369 A 19801209; DE 2861875 D1 19820722; ES 471481 A1 19801201; GB 1600283 A 19811014; IN 149944 B 19820612; IT 1111486 B 19860113; IT 7868566 A0 19780704; JP S5439961 A 19790328; JP S6152758 B2 19861114; US 4179220 A 19791218
DOCDB simple family (application)
EP 78300116 A 19780704; AU 3778678 A 19780705; CA 306562 A 19780629; DE 2861875 T 19780704; ES 471481 A 19780705; GB 2818377 A 19770705; IN 734CA1978 A 19780703; IT 6856678 A 19780704; JP 8106678 A 19780705; US 91980978 A 19780628