Heat in anaerobic digestion: Temperature inhibition and heat transfer integration with anaerobic digestion modelling

Interest in biogas has increased due to natural gas shortages and the energy transition. Most digesters in the EU have internal heating for process stability. Unheated reactors could potentially lower costs, but have decreased kinetics due to low operational temperatures, especially in winter. This raises the question how seasonal temperature...

Assessment on AnMBR for Removing Lipid and Carbohydrate from POME

Palm oil is a popular ingredient in domestic products. The palm oil industry has been growing rapidly over the past decades, so that the amount of palm oil mill effluent (POME) generated from the palm oil production has been increasing as well. The anaerobic membrane bioreactor (AnMBR) is a treatment solution that can remove organic pollutants...

Life cycle assessment of the mesophilic, thermophilic, and temperature-phased anaerobic digestion of sewage sludge

In this study the environmental impact of the anaerobic digestion (AD) of sewage sludge within an activated sludge wastewater treatment plant (WWTP) was investigated. Three alternative AD systems (mesophilic, thermophilic, and temperature-phased anaerobic digestion (TPAD)) were compared to determine which system may have the best...

Variation of Chemical and Structural properties of Waste Aerobic Granular Sludge (WAGS) and Flocculent Sludge in Anaerobic Digestion

A comparative batch experiment as well as a biochemical methane potential(BMP) test were conducted over 44d for aerobic granular sludge (WAGS) and waste flocculent activated sludge(WAS) on sludge anaerobic digestion (AD), to give an insight into the chemical and mechanical properties change of the EPS in different sludge source during AD process...