Thermal Disintegration of Sewage Sludge as a Method of Improving the Biogas Potential

Sylwia Myszograj () and Ewelina Płuciennik-Koropczuk
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Sylwia Myszograj: Institute of Environmental Engineering, University of Zielona Góra, 65-001 Zielona Góra, Poland
Ewelina Płuciennik-Koropczuk: Institute of Environmental Engineering, University of Zielona Góra, 65-001 Zielona Góra, Poland

Energies, 2023, vol. 16, issue 1, 1-14

Abstract: Operating and research experiments indicate that the potential benefits of thermal treatment of sewage sludge before methane fermentation include increasing the biodegradability of substrates, reducing the amount and improving the dewaterability of the fermentate and its hygienization, reducing the emission of odours during stabilization, higher production of biogas, and improving the energy balance of the process. The process of disintegration (liquefaction) can be carried out, for example, through the use of mechanical homogenization, microwaves and ultrasonic waves, chemical agents, thermal methods, and biological processes. The article reviews the literature data on thermal hydrolysis research, from the first source information to the present. The thermal hydrolysis achieved enhanced hydrolysis, biogas potential, and faster sludge degradation during anaerobic digestion without compromising the quality of the end products.

Keywords: wastewater treatment plant; sewage sludge; thermal disintegration; hydrolysis; biogas potential (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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