In this study,two wetland plant-sediment microbial fuel cells(P-SMFCs) and one sediment microbial fuel cell(SMFC) were constructed to investigate electricity generation and the simultaneous migration and transformation of nitrogen and phosphorus in the sediment and overlying water. Results show that the treatment group with three electrodes maintained a stable voltage output during the seven months of operation. During operation,the output voltage reached a stable level of 0. 3 to 0. 5 V,and the formation o...