Progress of organic matter degradation and maturity of compost produced in a large-scale composting facility

To monitor the progress of organic matter degradation in a large-scale composting facility, the percentage of organic matter degradation was determined by measuring CO(2) evolution during recomposting of compost samples withdrawn from the facility. The percentage of organic matter degradation was ca...

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Publié dans:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA. - 1991. - 29(2011), 6 vom: 15. Juni, Seite 574-81
Auteur principal: Nakasaki, Kiyohiko (Auteur)
Autres auteurs: Marui, Taketoshi
Format: Article en ligne
Langue:English
Publié: 2011
Accès à la collection:Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
Sujets:Evaluation Study Journal Article Organic Chemicals Soil Carbon Dioxide 142M471B3J
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520 |a To monitor the progress of organic matter degradation in a large-scale composting facility, the percentage of organic matter degradation was determined by measuring CO(2) evolution during recomposting of compost samples withdrawn from the facility. The percentage of organic matter degradation was calculated as the ratio of the amount of CO(2) evolved from compost raw material to that evolved from each sample during recomposting in the laboratory composting apparatus. It was assumed that the difference in the cumulative emission of CO(2) between the compost raw material and a sample corresponds to the amount of CO( 2) evolved from the sample in the composting facility. Using this method, the changes in organic matter degradation during composting in practical large-scale composting facilities were estimated and it was found that the percentage of organic matter degradation increased more vigorously in the earlier stages than in the later stages of composting. The percentage of organic matter degradation finally reached 78 and 55% for the compost produced from garbage-animal manure mixture and distillery waste (shochu residue), respectively. It was thus ascertained that organic matter degradation progressed well in both composting facilities. Furthermore, by performing a plant growth assay, it was observed that the compost products of both the facilities did not inhibit seed germination and thus were useful in promoting plant growth 
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700 1 |a Marui, Taketoshi  |e verfasserin  |4 aut 
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