Report: Municipal sludge digester upgrade for biofuel production

Municipal sludge digester upgrade for biofuel production, a report by Jürgen H Thiele, 2009.

A report on the hydraulic residence time analysis for the Palmerston North Totara Road primary sludge digesters. includes the analysis for a digester mixing upgrade with the ultimate objective to generate additional digester capacity for co-digestion of additional trade waste materials. A simple process model is used to determine the improved biogas production and digester facility operating costs.