A novel MBBR-MFC integrated system for high-strength pulp/paper wastewater treatment and bioelectricity generation

• Published in: Separation science and technology Vol. 55; no. 14; pp. 2490 - 2499
• Main Authors: Chen, Fu, Zeng, Siyan, Luo, Zhanbin, Ma, Jing, Zhu, Qianlin, Zhang, Shaoliang
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 21.09.2020; Taylor & Francis Ltd
• Subjects: Anaerobic microorganisms; Biochemical fuel cells; Biodiversity; Biodiversity and Ecology; Bioelectricity; Biofilms; Bioreactors; Botanics; ceramsite; Chemical oxygen demand; Ecology, environment; Ecosystems; electricity generation; Electrochemical analysis; Electrochemistry; Environmental Sciences; Hydraulic retention time; Life Sciences; Microbial fuel cell; Microorganisms; moving-bed biofilm reactor; Nuclear fuels; power density; Pulp; Retention time; Systematics, Phylogenetics and taxonomy; Vegetal Biology; Wastewater treatment; moving-bed biofilm reactor; power density; Microbial fuel cell; ceramsite; electricity generation
• ISSN: 0149-6395; 1520-5754
• DOI: 10.1080/01496395.2019.1641519

In this study, a system combining an anaerobic moving-bed biofilm reactor and a microbial fuel cell (MFC) was designed for simultaneous bioelectricity generation and pulp/paper wastewater (PPW) treatment. After 22 days, when hydraulic retention time (HRT) was set at 72 h, ceramsite-added MFC (C-MFC) showed better bioelectricity performance with power density of 94.5 mW/m 2 and internal resistance of 35.7 Ω, as compared to the control without ceramsite (W-MFC) (56.1 mW/m 2 , 54.3 Ω). Chemical oxygen demand (COD) removal efficiencies of C-MFC and W-MFC were 65.6% and 51.3%, respectively. The C-MFC demonstrated its superior electrochemical performance compared to the W-MFC.