Related Experiment Video
Updated: Apr 8, 2026

Author Spotlight: Advancing Anaerobic Microbiota Research Using a Novel Respirometry Protocol
Published on: April 26, 2024
Bioelectrochemically-assisted anaerobic composting process enhancing compost maturity of dewatered sludge with
Hang Yu1, Junqiu Jiang1, Qingliang Zhao2
1School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Abstract:
Bioelectrochemically-assisted anaerobic composting process (AnCBE) with dewatered sludge as the anode fuel was constructed to accelerate composting of dewatered sludge, which could increase the quality of the compost and harvest electric energy in comparison with the traditional anaerobic composting (AnC). Results revealed that the AnCBE yielded a voltage of 0.60 ± 0.02 V, and total COD (TCOD) removal reached 19.8 ± 0.2% at the end of 35 d. The maximum power density was 5.6 W/m(3). At the end of composting, organic matter content (OM) reduction rate increased to 19.5 ± 0.2% in AnCBE and to 12.9 ± 0.1% in AnC. The fuzzy comprehensive assessment (FCA) result indicated that the membership degree of class I of AnCBE compost (0.64) was higher than that of AnC compost (0.44). It was demonstrated that electrogenesis in the AnCBE could improve the sludge stabilization degree, accelerate anaerobic composting process and enhance composting maturity with bioelectricity generation.
Related Concept Videos
Environmental Applications of Microorganisms
Biofuels
Bioremediation
Microbes and Methanogenesis
The Winogradsky Column
Microbial Leaching

