[Composting of household waste in containers]
2005
Plume, I.(Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Engineering)E-mail:[email protected] | Plume, B.(I/U Sandio, Jelgava (Latvia))E-mail:[email protected]
Household wastes handling improperly leads to increasing of total amount of wastes deposited in landfills. Investigations of family (3 adults and 3 children) during 3 year period appeared, that average weight of kitchen wastes produced was 62.2 kg per habitant in year. Kitchen wastes have high moisture content 70-90% and high density 500-600 kg/m**3. Investigated weight of liquid leached was 43.2%, if the kitchen waste were composted without additional material and leakage was 15.4% if wastes was composted together with 10% dry bulking materials (straw 5%). Leakage was not observed, if kitchen wastes were co-composted with 25% lake rootfelt. Maximal temperatures in 1.2 m**3 container were 36 deg C for compost of weeds and 61 deg C for screened weed's compost. Non-treated with etch wheat grain's sprouts all perished after 40-day couching period in compost having maximal temperature 36 deg C during previous composting process and in same time survived 75% of sprouts in compost having maximal temperature 61 deg C during previously performed composting process.
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