Regulation of ash slagging behavior for sewage sludge by rice husk addition: Focusing on control mechanisms

Combustion of sewage sludge (SS) is a promising alternative waste-to-energy process. However the mono-combustion of SS may induce severe ash slagging behavior, which will shorten the life of the combustion reactor. In this study, rice husk (RH) as a clean and high-energy density auxiliary was introduced to improve the slagging characteristics of SS and the underlying mechanism was revealed. The results indicated that RH addition can raise ash...