%0 Journal Article
%T Comprehensive review of microbial production of medium-chain fatty acids from waste activated sludge and enhancement strategy.
%A Gu X
%A Sun J
%A Wang T
%A Li J
%A Wang H
%A Wang J
%A Wang Y
%J Bioresour Technol
%V 402
%N 0
%D 2024 Jun 1
%M 38701982
%F 11.889
%R 10.1016/j.biortech.2024.130782
%X Microbial production of versatile applicability medium-chain fatty acids (MCFAs) (C6-C10) from waste activated sludge (WAS) provides a pioneering approach for wastewater treatment plants (WWTPs) to achieve carbon recovery. Mounting studies emerged endeavored to promote the MCFAs production from WAS while struggling with limited MCFAs production and selectivity. Herein, this review covers comprehensive introduction of the transformation process from WAS to MCFAs and elaborates the mechanisms for unsatisfactory MCFAs production. The enhancement strategies for biotransformation of WAS to MCFAs was presented. Especially, the robust performance of iron-based materials is highlighted. Furthermore, knowledge gaps are identified to outline future research directions. Recycling MCFAs from WAS presents a promising option for future WAS treatment, with iron-based materials emerging as a key regulatory strategy in advancing the application of WAS-to-MCFAs biotechnology. This review will advance the understanding of MCFAs recovery from WAS and promote sustainable resource management in WWTPs.