Enhanced Performance of Denitrifying Sulfide Removal Process by 1,2-Naphthoquinone-4-Sulphonate  

作　　者：Liu Chunshuang Han Kang Zhao Dongfeng Guo Yadonag Liu Lihong Liu Fang Zhao Chaocheng 

机构地区：[1]College of Chemical Engineering, China University of Petroleum,Qingdao [2]School of Earth Sciences, Northeast Petroleum University

出　　处：《China Petroleum Processing & Petrochemical Technology》2016年第1期22-28,共7页中国炼油与石油化工（英文版）

基　　金：supported bythe National Natural Science Foundation of China under Grant No. 21307160;the Natural Science Foundation of Shandong Province under Grant No. ZR2013EEQ030

摘　　要：The denitrifying sulfide removal(DSR) process with bio-granules comprising both heterotrophic and autotrophic denitrifiers can simultaneously convert nitrate, sulfide and acetate species into di-nitrogen gas, elemental sulfur and carbon dioxide, respectively, at high loading rates. This study has determined that the reaction rate of sulfide oxidized into sulfur could be enhanced in the presence of 1,2-naphthoquinone-4-sulphonate(NQS). The presence of NQS mitigated the inhibition effects of sulfide species on denitrification. Furthermore, the reaction rates of nitrate and acetate to nitrogen gas and CO_2, respectively, were also promoted in the presence of NQS, thereby enhancing the performance of DSR granules. The advantages and disadvantages of applying the NQS-DSR process are discussed.The denitrifying sulfide removal（DSR） process with bio-granules comprising both heterotrophic and autotrophic denitrifiers can simultaneously convert nitrate, sulfide and acetate species into di-nitrogen gas, elemental sulfur and carbon dioxide, respectively, at high loading rates. This study has determined that the reaction rate of sulfide oxidized into sulfur could be enhanced in the presence of 1,2-naphthoquinone-4-sulphonate（NQS）. The presence of NQS mitigated the inhibition effects of sulfide species on denitrification. Furthermore, the reaction rates of nitrate and acetate to nitrogen gas and CO2, respectively, were also promoted in the presence of NQS, thereby enhancing the performance of DSR granules. The advantages and disadvantages of applying the NQS-DSR process are discussed.

关 键 词：denitrifying sulfide removal NQS inhibition bio-granules 

分 类 号：X701.3[环境科学与工程—环境工程] TQ031[化学工程]