Toward energy self-sufficiency in small municipal wastewater treatment plants: assessment of energy recovery potential, process economic balance, and greenhouse gas avoidance
Fernanda Amaral-Góis·Claudemir M. Radetski·Renan C. Testolin·Ramaiana Radetski-Silva·Dilamara Riva Scharf·Marcelo Poyer-Radetski·Wendell Pimentel-Almeida·Cléder A. Somensi·Rafael Ariente-Neto·Vinicius J. Silva
Abstract The objective of this study was to quantitatively assess the energy recovery potential from both biogas and the incineration of dewatered sludge, aiming to meet the energy demand of a small municipal wastewater treatment plant (MWTP) with a treatment capacity below 50 L s −1 . The energy potential of sludge incineration was characterized based on its gross calorific value, while energy production from biogas generated during the anaerobic digestion of municipal sludge was also evaluated