Bioelectrochemical degradation of petroleum hydrocarbons: A critical review and future perspectives. (1st August 2022)

• Record Type: Journal Article
• Authors: He, Yuqing; Zhou, Qixing; Mo, Fan; Li, Tian; Liu, Jianv
• Is Part Of: Environmental pollution. Volume 306(2022)
• Publication Date: 2022-08-01
• Subjects: Bioelectrochemical system -- Environmental application -- Bibliometric analysis -- Bioremediation -- Scaling up; Pollution -- Periodicals; Pollution -- Environmental aspects -- Periodicals; Environmental Pollution -- Periodicals; Pollution -- Périodiques; Pollution -- Aspect de l'environnement -- Périodiques; Pollution -- Effets physiologiques -- Périodiques; Pollution; Pollution -- Environmental aspects; Periodicals; Electronic journals; 363.73
• DOI: 10.1016/j.envpol.2022.119344
• Languages: English
• ISSNs: 0269-7491

Abstract

Abstract: As typical pollutants, petroleum hydrocarbons that are widely present in various environmental media such as soil, water, sediments, and air, seriously endanger living organisms and human health. In the meantime, as a green environmental technology that integrates pollutant removal and resource recovery, bioelectrochemical systems (BESs) have been extensively applied to the removal of petroleum hydrocarbons from the environment. This review introduces working principles of BESs, following which it discusses the different reactor structures, application progresses, and key optimization factors when treating water, sewage sludges, sediments, and soil. Furthermore, bibliometrics was first used in this field to analyze the evolution of knowledge structure and forecast future hot topics. The research focus has shifted from the early generation of bioelectric energy to exploring mechanisms of soil remediation and microbial metabolisms, which will be closely integrated in the future. Finally, the future prospects of this field are proposed. This review focuses on the research status of bioelectrochemical degradation of petroleum hydrocarbons and provides a scientific reference for subsequent research. Graphical abstract: Image 1 Highlights: Bioelectrochemical system (BES) can enhance petroleum hydrocarbon degradation. Configuration of BES varies in different environmental media. Inoculation of microorganisms and applied voltage can improve system performance. Soil remediation and microbial metabolic mechanisms will be the focus of research. More attention should be paid to technology coupling and reactor scale-up in future.