Co-digestion of agricultural and municipal waste to produce energy and soil amendment

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In agriculture, manure and cotton gin waste are major environmental liabilities. Likewise, grass is an important organic component of municipal waste. These wastes were combined and used as substrates in a two-phase, pilot-scale anaerobic digester to evaluate the potential for biogas (methane) production, waste minimisation, and the digestate value as soil amendment.

The anaerobic digestion process did not show signs of inhibition. Biogas production increased during the first 2weeks of operation, when chemical oxygen demand and volatile fatty acid concentrations and the organic loading rate to the system were high.

2017 Co-digestion of agricultural and municipal waste to produce energy and soil amendment


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