Cellulose degradation in municipal solid waste composting with sequential addition of sewage sludge.

摘要

The increasing cellulose content of solid waste has been identified as an obstacle in municipal solid waste (MSW) composting. Restricted carbon in cellulose delays the decomposition process, and enhances the loss of nitrogen with the production of odor.;Compost stocks were established by mixing cafeteria waste and municipal sewage sludge. Sequential addition of sludge, a nitrogen source, in MSW composting was practiced. Compost was generated in a 10-week process. Cellulolytic fungal activity in compost was assessed and major decomposing fungi were identified.;Major decomposition activity occurred in the thermophilic temperature range, but extreme temperatures (above 65;Sequential addition of sewage sludge into compost improved cellulose degradation and conserved nitrogen. The drawback in doing this may be the difficulty in meeting compliance with New York State Department of Environmental Conservation regulations for pathogen control in Class I compost.;Extreme temperatures (above 65