ISHS Acta Horticulturae 302: International Symposium on Compost Recycling of Wastes
QUANTITY AND QUALITY OF SEPARATELY COLLECTED BIOWASTE IN WEST GERMANY |
| Author: | U. Krogmann |
| Abstract:
Solid waste management is in a crisis in West Germany. As an alternative composting of separately collected organic waste will be seen more and more in the future. Biowaste (separately collected organic kitchen and yard waste) represents a significant proportion of municipal solid waste (MSW), bulky waste, business waste and trade waste. In residential areas with gardens on the average 0.9 kg of biowaste per inhabitant and week are yielded, wherease in residential areas without gardens on the average 1.8 kg of biowaste per inhabitant and week are separately collected. In residential areas with gardens considerable fluctuations in biowaste quantity can be detected, dependent on public relations work, available container volume, etc. Despite separate collection, the remaining municipal solid waste still contains considerable portions of biowaste (0.5 – 1.0 kg of biowaste per inhabitant and week). Due to separate collection of biowaste the MSW-reduction in the different demonstration projects is in the range between 10–30%. The heavy metal content of biowaste compost is considerably lower than that of total municipal solid waste compost. | |
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