Batch　experiments　are　conducted　to　investigate　the　denitrification　prosperities,　denitrification　dynamics　and　pH　variation　with　municipal　wastewater,　supernatants　of　sludge　hydrolyzed　acidification,　acetic　sodium,　methanol,　ethanol　and　glucose　as　electron　donors　as　well　as　nitrate　as　electron　acceptor　under　T=(15±1)°C.　The　results　show　that　the　maximum　specific　denitrification　rate　and　specific　organic　compounds　utilization　rate,　which　is　4.13　mg/h　and　29.8　mg/h,　respectively,　were　attained　when　acetic　sodium　is　used　as　the　electron　donor,　whereas　the　lowest　denitrification　potential　was　also　observed.　As　for　supernatants　of　sludge　hydrolyzed　acidification,　its　denitrification　performance　is　nearly　as　same　as　acetic　sodium.　Furthermore,　denitrification　bacteria　can　adapt　to　methanol　and　ethanol　until　a　period　of　sludge　acclimations,　so　these　two　electron　donors　could　not　be　used　as　soon　as　it　needed　to　improve　the　denitrification　efficiency.　As　for　glucose,　there　is　a　＇ρ(NOx--N　)　reduction　stop　platform＇　during　10-120　mins　of　reaction　process,　after　glucose　molecules　decomposing　into　small　molecules　organisms　the　denitrification　could　go　on　successfully,　so　glycoside　is　the　rate-limiting　step　of　denitrification　with　glucose　as　the　electron　donor.　Besides,　pH　indicates　the　denitrification　characteristics　of　different　electron　donors　with　heterotrophy　anoxic　yields　of　0.68-0.73.