Impact of thermal pretreatment on anaerobic digestion of dewatered sludge from municipal and industrial wastewaters and its economic feasibility

Effects of different treatments of manure on mitigating methane emissions during storage and preserving the methane potential for anaerobic digestion

“…Thermal treatment of sludge at low temperatures (70-90 • C) has been extensively investigated so far as a means to remove pathogens (Skiadas et al, 2005), increase dewaterability (Liu et al, 2019) and enhance CH 4 yield in a subsequent anaerobic digestion step (Appels et al, 2010;Climent et al, 2007;Ferrer et al, 2008;Kim et al, 2022;Lu et al, 2008) with very promising results. Application of thermal treatment on manure and manure fibers with focus on the enhancement of CH 4 yield (Rafique et al, 2010;Vergote et al, 2020) has also shown application potential, especially if coupled with a manure heat exchanger system as described above.…”