Co-biodrying of sewage sludge and organic fraction of municipal solid waste: A thermogravimetric assessment of the blends.

•Co-combustion properties of sewage sludge and OFMSW during biodrying was assessed.•There existed interaction at high temperature during co-combustion process.•Co-biodrying for 9 days enhanced the ignition performance and burnout efficiency.•Equivalent amount of sludge and OFMSW showed higher S value during biodrying.•Biodrying process with 9–12 days is preferable.