Integrating biochar granular with microbial fuel cell to enhance the remediation of polycyclic aromatic hydrocarbons contaminated soil

In this work, biochar granular (BCG) was prepared through alginate sodium and calcium chloride crosslinking method and integrated with SMFC. The results illustrated that the addition of 2% (w/w) BCG increased soil porosity and permeability, reduced the internal resistance, increased the power density and thereby promoted the PAHs removal efficiency to 67.4% (phenanthrene) and 58.6% (pyrene) near the anode.