Biogas Digested Slurr
The use of biogas digested slurry as organic manure can supplement the usage of chemical fertilizers. The effluent manure does not produce any odour and hence does not create any pollution. The biogas slurry is rich in nitrogen, the essential nutrient for plant growth. Moreover, this nitrogen is in water-soluble form and can be easily absorbed by the plants. The biogas slurry can also be mixed with biomass and composted. The slurry being full of bacteria (which can break down vegetable matter) makes excellent composting material. When a large mass of biomass waste with high carbon: nitrogen ratio is available, the slurry helps stimulate decomposition by acting as a nitrogen primer. Earthworms could either be cultured in dry sludge or in a compost pit.
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