“…[72] Among different substrates, wastewater is a sustainable rich medium which can be treated by MFCs. There are several reports on electricity generation directly from complex organic wastewater such as municipal, [77] swine wastewater, [78] dairy wastewater, [79,80] slaughterhouse wastewater, [81] rice mill wastewater, [82] tannery wastewater, [58] cassava mill wastewater, [83] molasses wastewater, [84] refinery wastewater, [85] brewery wastewater, [86] winery wastewater, [87] chemical wastewater, [88][89][90] sulphide-rich wastewater, [91] landfill leachate, [92][93][94][95][96] food waste leachate, [97] azo dye, [98,99] and solid substrates such as rice straw. [100] MFCs also can be used for simultaneous removal of sulphide and nitrate from synthetic wastewater [101] and sulphate-sulphiderich wastewaters.…”