Research advance in resource recovery treatment of sewage sludge by pyrolysis

Pyrolysis,as a new kind of thermochemical treatment in the field of waste treatment,can convert the material into stable and transportable form of energy.In this article,the fundamental principle,classification and kinetics of sewage sludge pyrolysis are introduced.Characteristics,development and state-of-art of different kinds of sewage sludge pyrolysis processes are also described according to phases of their target products,along with their possible effective usages.Additionally,Hybrid pyrolysis processes and future trends of pyrolysis process in sewage sludge treatment are discussed.