Physical, chemical and biological processes for optimizing decentralized composting

Hogland, W (author)

Bramryd, Torleif (author): Lund University,Lunds universitet,Institutionen för tjänstevetenskap,Samhällsvetenskapliga institutioner och centrumbildningar,Samhällsvetenskapliga fakulteten,Department of Service Studies,Departments of Administrative, Economic and Social Sciences,Faculty of Social Sciences

Marques, M (author)

Nimmermark, S (author)

(creator_code:org_t)

Abstract Subject headings

On-site composting of nonpolluted organic wastes avoids costs and energy for transportation since the volume to be transported can be reduced to about 20% of the original. This paper describes the aerobic processes in a small-scale composting reactor, and evaluates how these processes can be optimized. The optimized composting process has a relatively short turnover time for organic matter; at the same time the temperature of about 60degreesC decreases the problems with pathogens and weeds in the mature compost. The compost produced has a high nutritional value, with high concentrations of especially nitrogen, potassium and phosphorus, while the contamination by heavy metals and other toxic substances are very low.

By the author/editor: Hogland, W; Bramryd, Torleif; Marques, M; Nimmermark, S

About the subject

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