Authors
Yuyi Gu, Xiang Qi, Xufei Yang, Yong Jiang, Panpan Liu, Xiangchun Quan, Peng Liang
Publication date
2023/3/1
Source
Water Research
Volume
231
Pages
119630
Publisher
Pergamon
Description
Microbial extracellular electron transfer (EET) plays a crucial role in bioenergy production and resource recovery from wastewater. Interdisciplinary efforts have been made to unveil EET processes at various spatial scales, from nanowires to microbial aggregates. Electrical conductivity has been frequently measured as an indicator of EET efficiency. In this review, the conductivity of nanowires, biofilms, and granular sludge was summarized, and factors including subjects, measurement methods, and conducting conditions that affect the conductivity difference were discussed in detail. The high conductivity of nanowires does not necessarily result in efficient EET in microbial aggregates due to the existence of non-conductive substances and contact resistance. Improving the conductivity measurement of microbial aggregates is important because it enables the calculation of an EET flux from conductivity and a …
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Scholar articles
Y Gu, X Qi, X Yang, Y Jiang, P Liu, X Quan, P Liang - Water Research, 2023