Remediation of PAH polluted soils using a soil microbial fuel cell: Influence of electrode interval and role of microbial community

The soil microbial fuel cells (SMFCs) were constructed to remediate soils contaminated by polycyclic aromatic hydrocarbons (PAHs). With a maximum power density of 12.1mWm-2 and an internal resistance of 470Ω, a closed SMFC showed electricity generation comparable to that by an open SMFC after 175days of operation and meanwhile increased the removal rates of anthracene, phenanthrene, and pyrene to 54.2±2.7%, 42.6±1.9% and 27.0±2.1% from...