Efficiency of prefabricated biodigesters in the treatment of domestic wastewater in dispersed rural localities

In most developing nations, poor wastewater management continues to be a significant health and environmental concern. this context, the research seeks evaluate efficiency of biodigester treatment domestic through monitoring evaluation, based on physicochemical bacterial parameters reduce pollution caused by excreta in Chibaya Baja sector, Peru. Water sampling was done influent effluent biodigester, taking samples periodically every 15 days, for 01 months, obtaining 03 bacteriological analysis. According results obtained from laboratory, 59.51% biochemical oxygen demand (BOD), 49.16% chemical (COD), oils fats 35.92%, total suspended solids 52.78% fecal coliforms (thermotolerant) 89.19%. A comparison evaluated with maximum permissible limits set Peruvian Ministry Environment reveals that levels BOD COD exceed limits. Therefore, should not discharged into water bodies.