Nitrite accumulation in continuous-flow partial autotrophic denitrification reactor using sulfide as electron donor

作者：Liu, Chunshuang; Li, Wenfei; Li, Xuechen; Zhao, Dongfeng; Ma, Bin; Wang, Yongqiang; Liu, Fang; Lee, Duu-Jong^*

来源：Bioresource Technology, 2017, 243: 1237-1240.

DOI：10.1016/j.biortech.2017.07.030

• Elemental sulfur
• Nitrite
• Autotrophic denitrifier
• Partial denitrification

The nitrite accumulation in handling nitrate and sulfide-laden wastewater in a continuous-flow upflow anaerobic sludge blanket reactor was studied. At sulfide/nitrate-nitrogen ratio of 1:0.76 and loading rates of 1.2 kg-S m(-3) d(-1) and 0.4 kg-N m(-3) d(-1), the elemental sulfur and nitrite accumulation rates peaked at 90% and 70%, respectively, with Acrobacter, Azoarcus and Thauera presenting the functional strains in the studied reactor. The accumulated nitrite was proposed a promising feedstock for anaerobic ammonia oxidation process. An integrated partial autotrophic denitrification-anaerobic ammonia oxidation-aeration process for handling the ammonia and sulfide-laden wastewaters is proposed for further studies.

• 出版日期2017-11
• 单位中国石油大学（北京）; 北京工业大学