Co-pyrolysis shows improved bio-oil quality from municipal sewage and sugarcane waste, suggesting eco-friendly disposal methods.
There is huge quantity of waste is generating, which is being problematic to dispose it. The main types of combustible waste produced by various industrial, municipal and agricultural sludge which may be reuse as auxiliary fuel in the utilities (e.g., generator, boiler and incinerator). There are some techniques for decompose MSS like Incineration, Sanitary landfills, Composting etc but these techniques are not eco-friendly. Thermal technologies are used to convert wastes like plastics, MSS, food wastes, agricultural wastes etc to useful energy like Bio-oil, bio-char and gases. Pyrolysis is a one of the techniques of thermal decomposition which is very effective to produce bio-oil. Co-pyrolysis is a process which involves two or more different material as a feedstock. The key feature of this technique is the synergistic effect between biomass and MSS which occurs during the process. So, quality of bio-oil can be increase by Co-pyrolysis process.
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Joshi et al. (2025) studied this question.