Abstract

The processing of the mixture of domestic solid waste and domestic sewage in an stirring digester was studied. The experimental set up consisted of six thermostatically controlled digesters of 1 l, each one in a bath at 35 ± 1°C and magnetically stirred. The best feeding for the culture was 1.7 g COD 1−1 day−1. The minimum hydraulic retention time was 6 days. The efficiency in COD removal of treatment varied between 90.1% and 72.4%. The biogas productivity was 0.19 l g−1 COD day−1.

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