A　new　process　was　proposed　by　integrating　a　three-dimensional　biofilm　electrode　reactor　with　sulfur　autotrophic　denitrification　and　electrocoagulation　within　the　same　reactor.　The　results　indicated　that　under　the　wastewater　influent　condition　of　NO3--N　=　30　mg/L,　COD　=　45　mg/L,　total　phosphorus　(TP)　=　1.5　mg/L,　hydraulic　retention　time　(HRT)　=　8　h,　and　I　=　400　mA,　the　NO3--N　and　TP　removal　of　the　proposed　process　reached　89.8%　and　83.0%,　respectively.　It　was　observed　that　the　electrocoagulation　process　improved　phosphorus　removal,　while　the　simultaneous　existence　of　heterotrophic,　hydrogen,　sulfur　and　iron　autotrophic　denitrifying　bacteria　led　to　enhanced　and　stabilized　nitrogen　removal.　The　Sulfuritalea　hydrogenivorans　sk43H　and　Sulfuricella　denitrificans　skB26　were　found　as　the　dominant　denitrifying　bacteria　in　the　electrocoagulation　section　and　the　section　of　biofilm　electrode　with　sulfur　filler,　respectively.　As　compared　to　conventional　technologies,　the　proposed　new　process　can　achieve　simultaneous,　stable　and　deep　nitrogen　and　phosphorus　removal　from　wastewater　treatment　plant　effluent　with　low　organic　carbon　content.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.