Premium
Microwave pretreatment for soluble phase mesophilic anaerobic digestion
Author(s) -
Toreci Isil,
Droste Ronald L.,
Kennedy Kevin J.
Publication year - 2010
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.10372
Subject(s) - anaerobic digestion , mesophile , biogas , biogas production , chemistry , volume (thermodynamics) , digestion (alchemy) , chromatography , raw material , methane , pulp and paper industry , waste management , biology , physics , organic chemistry , quantum mechanics , bacteria , genetics , engineering
The effect of microwave pretreatment on dewateribility of thickened waste activated sludge (TWAS) was determined by centrifuging it at an RCF of 6513 for 30 min for 6 and 11.85% TS concentrations. Supernatant of pretreated and untreated samples were filtered through 0.45‐μm GF/C grade binder free glass microfiber filters before biological methane potential (BMP) assay. It was found that microwave (MW) temperature had greater impact on removing supernatant from sludge than MW intensity. The highest biogas production was observed with pretreatment at 150°C with low MW intensity which improved biogas production 90% compared to the same volume of supernatant obtained from raw TWAS at 20th day of BMP assay. © 2009 American Institute of Chemical Engineers Environ Prog, 2010