Abstract:

Excess sludge and sludge utilization methods are described. Excess sludge utilized with microbial fuel cell technology is introduced，including utilization of excess sludge as the fuel for microbial fuel cell directly and indirectly. In the case of excess sludge utilized as the fuel for microbial fuel cell directly，the output power density，removal efficiencies of TCOD and SS are described. In the case of excess sludge was utilized as the fuel for microbial fuel cell indirectly，the supernatant fluid of microwave pretreated sludge or the volatile fatty acids（VFA）produced by sludge fermentation is used as the fuel. These methods can utilize excess sludge effectively and have broad application prospects.