Microbiological method for the decomposition of organic wastes

Details Microbiological method for the decomposition of organic wastes Microbiological method for the decomposition of organic wastes

C - Chemistry, Metallurgy

05

F

C05F 17/00 (2006.01) C05F 17/02 (2006.01)

Patent

CA 2153683

The invention concerns a microbiological method for the decompo- sition of organic wastes, the waste material being subjected to a compost- ing process under aerobic conditions in a closed container to which air is supplied. Air is passed through the waste material at intervals, the spent air being drawn off together with the gaseous decomposition products. The length of the intervals between the air feed periods is controlled as a function of the lowest value of the O2 concentration measured in the spent air. The spent air which collects in the space above the composting material is preferably drawn off at the same time as air is supplied, or shortly afterwards, the O2 concentration being measured at this time. Al- ternatively, the O2 concentration in the space between the heap of waste and the container end wall or the O2 concentration of the gas in the heap of waste can be monitored. (5n7 r e Bei einem Verfahren zurn ~ . Abh~u von organ~ cheD Abfallen wird das w t ' '~' ' Material in einen g~ <s v ~ Behalter unber 1- ' ' ' bei aeroben B~ v einem ROLt~ .V ~ B , - O Dabei wird Luft d ' - ' ' und stoBweise durch das Ahfnl` ' geieibet, und die mit den g,~ ----;g~ Abb~a~ : . ' ' Abluft wird abgef~ Die Dauer d ~ die zwis- cheD den 1~ ' liegeL wird Dach MaBgabe des n-~ ' u Weltes des O~Gebalbes gesbeuert, der in da Abluft f~stv~t~,llt wir~L VOIL40~ ' wird die sich in dam Rllum ~ber dam ~ sam- melnde Abluft gl. 1~ ;g mit d T ' ' ' oder ~urz dsDach abge- saugt~ wobei die Mcsslmg des 02 Gehaltes .1 . hg '~' L wird. Albet~ativ dazu ~nD d O~Gehalt des Raumes zwischen dem ~h- ll' ' und der Brl~ . d oder auch der O~Gehalt des in dern Abfallhaufen t ' " ' Gases, ' _~ht werdeD.

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