Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Ali Izzet Cengiz*, Huseyin Guven, Hale Ozgun, Mustafa Evren Ersahin

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Özet

Today, the transition to renewable energy from conventional energy practices is more important than ever to establish energy security and mitigate climate change. The wastewater treatment plants (WWTP) consume a remarkable amount of energy and cause significant greenhouse gas emissions. The energy balance of WWTP can be improved by implementing energy-efficient applications such as anaerobic digestion. However, most of the existing WWTPs utilize only sewage sludge in conventional anaerobic digesters (CAD) which results in low biogas generation. Generally, co-digestion is indicated as an effective solution for the low biogas generation faced in mono-digestion. Moreover, recently, anaerobic membrane bioreactors (AnMBR) have been promoted as a prominent alternative to CADs. This paper overviews the current situation of co-digestion applications by AnMBRs for municipal WWTPs. Furthermore, the environmental and economic aspects of these applications were reviewed. Lastly, challenges and future perspectives related to the co-digestion applications by AnMBR were thoroughly discussed. Graphical Abstract: (Figure presented.)

Orijinal dilİngilizce
DergiReviews in Environmental Science and Biotechnology
DOI'lar
Yayın durumuKabul Edilmiş/Basında - 2024

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© The Author(s) 2024.

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