Effect of FeSO4 on bio-electro-fenton microbial fuel cells with different exchange membranes

In this study the concept of FeSO4 being utilised and applied to the bio-electro-fenton process on microbial fuel cells with different exchange membranes is addressed. The aim is to realise its effect on treating dairy wastewater and oily wastewater simultaneously. Results show that a better performance of a bio-electro-fenton microbial fuel cell could be found under the condition of using FeSO4 iron sources and an anion exchange membrane because of the pH stabilising the variations. In addition, a betterchemical oxygen demand rate of degradation of 77% and a power density of 260 mW m−2, with an output voltage 2·3 times that of the proton exchange membrane could be obtained.