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Your search keyword '"Yongxiang Ren"' showing total 8 results
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8 results on '"Yongxiang Ren"'

1. An overview of bioelectrokinetic and bioelectrochemical remediation of petroleum-contaminated soils

Author

Jun Lan, Fang Wen, Yongxiang Ren, Guangli Liu, Yi Jiang, Zimeng Wang, and Xiuping Zhu

Subjects
Petroleum hydrocarbons and derivatives, Soil contamination, Bioelectrokinetic remediation, Bioelectrochemical remediation, Microbial fuel cell, Environmental sciences, GE1-350, Environmental technology. Sanitary engineering, TD1-1066
Abstract

The global problem of petroleum contamination in soils seriously threatens environmental safety and human health. Current studies have successfully demonstrated the feasibility of bioelectrokinetic and bioelectrochemical remediation of petroleum-contaminated soils due to their easy implementation, environmental benignity, and enhanced removal efficiency compared to bioremediation. This paper reviewed recent progress and development associated with bioelectrokinetic and bioelectrochemical remediation of petroleum-contaminated soils. The working principles, removal efficiencies, affecting factors, and constraints of the two technologies were thoroughly summarized and discussed. The potentials, challenges, and future perspectives were also deliberated to shed light on how to overcome the barriers and realize widespread implementation on large scales of these two technologies.

Published
2023
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7. High current density with spatial distribution of Geobacter in anodic biofilm of the microbial electrolysis desalination and chemical-production cell with enlarged volumetric anode

Author

Jun Lan, Yongxiang Ren, Haiping Luo, Xin Wang, Guangli Liu, and Renduo Zhang

Subjects
Environmental Engineering, Bioelectric Energy Sources, Biofilms, RNA, Ribosomal, 16S, Environmental Chemistry, Geobacter, Electrodes, Pollution, Waste Management and Disposal, Electrolysis
Abstract

The aim of this study was to establish the relationship between spatial distribution of Geobacter and electric intensity in the microbial electrolysis desalination and chemical-production cell (MEDCC) and to investigate the effect of enlarged volumetric anode on the performance of MEDCC. The MEDCC was constructed with nine carbon brush anodes (length × diameter = 11 cm × 3 cm) as enlarged volumetric anode, and operated by feeding with 1 g/L acetate as substrate and 35 g/L NaCl as artificial seawater under the applied voltages of 1.2-4.5 V. Spatial distribution of Geobacter in the anodic biofilm was determined according to the bacterial community analysis on 27 biofilm samples from the top, middle and bottom layers of anodes (i.e., with distance of 4.5, 10, and 15.5 cm to the cathode, respectively). Results showed that the enlarged volumetric anode significantly improved the performance of MEDCC. The maximum desalination rate and current density reached 338.5 ± 21.8 mg/L∙h and 55.7 ± 3.7 A/m

Published
2022
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