The maximum acceptable sulfide concentration and volumetric removal rate of simultaneous anaerobic sulfide and nitrate removal process were higher than those of simultaneous anaerobic sulfide and nitrite removal process. 硝酸盐型脱氮除硫工艺所能耐受的最大进水硫化物浓度和硫化物去除速率均优于亚硝酸盐型脱氮除硫工艺。