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The incorrect disposal of the waste generated in the municipalities contributes to water and soil contamination, resulting in a real concern in order to find an adequate disposal as well as obtain by-products that can be used to reduce CO2 emissions. Anaerobic digestion turns out to be the most efficient treatment, both in environmental and economic terms. The objective of this study is to evaluate the anaerobic co-digestion process in phases as an alternative for the treatment of municipal waste: sludge from water treatment plants and the biodegradable part of Municipal Solid Waste (MSW), for three HRTs (Hydraulic Retention Times). Testing results show up a max elimination of 70.68% in VS (Volatile Solids) and 74.01% in COD (Chemical Oxygen Demand). With these percentages of elimination on average, 15.96 L/d of biogas was produced, for each kg of COD eliminated 0.56 m of biogas was produced and for each kg of SV 0.85 m and methane of 50.10%.

Anaerobic Co-digestion Process Efficiency Estimation in Phases as an Alternative for Municipal Waste Treatment