Issue 14, 2017, Issue in Progress
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RSC Advances

Biological degradation of potato pulp waste and microbial community structure in microbial fuel cells

Yushi Tian,a   Xiaoxue Mei,a   Qing Liang,a   Di Wu,ab   Nanqi Rena  and  Defeng Xing ORCID logo *a  

* Corresponding authors

a State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
E-mail: dxing@hit.edu.cn
Fax: +86 451 86289195
Tel: +86 451 86289195

b College of Life Science, Northeast Forestry University, Harbin 150040, China

Abstract

The microbial electrochemical cell (MEC) is a promising waste treatment technology to accomplish simultaneous alternative energy production and degradation of organic matters. Potato pulp waste (PPW) from a potato processing plant contains a large amount of carbohydrates that need be degradated before discharge into the environment. Here, we describe electricity generation in single-chamber microbial fuel cells (MFCs) using PPW. Different organic loadings of PPW influenced obviously the power output of MFCs. The maximum power density of 32.1 ± 0.5 W m−3 was obtained in a MFC fed with 10 g L−1 PPW. Microbial community analysis based on high-throughput sequencing of 16S rRNA gene indicated that the predominant populations were obviously different in the MFCs. The syntrophic interactions between polysaccharide-degrading bacteria and exoelectrogens in the anode biofilms drove the cascade utilization of potato pulp waste in MFCs.

Graphical abstract: Biological degradation of potato pulp waste and microbial community structure in microbial fuel cells

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Article information

DOI
https://doi.org/10.1039/C6RA27385H
Article type
Paper
Submitted
26 Nov 2016
Accepted
12 Jan 2017
First published
24 Jan 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 8376-8380

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Biological degradation of potato pulp waste and microbial community structure in microbial fuel cells

Y. Tian, X. Mei, Q. Liang, D. Wu, N. Ren and D. Xing, RSC Adv., 2017, 7, 8376 DOI: 10.1039/C6RA27385H

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