Simultaneous Biological Removal of p-Cresol, Sulfide and Nitrate by Denitrification  

作　　者：Liu Chunshuang Li Wenfei Zhao Dongfeng Li Wei Li Xuechen Zhao Chaocheng Liu Fang 

机构地区：[1]College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China

出　　处：《China Petroleum Processing & Petrochemical Technology》2017年第4期89-94,共6页中国炼油与石油化工（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant No. 21307160;the Fundamental Research Funds for the Central Universities under Grant No. 16CX02040A

摘　　要：Biological removal of sulfide, nitrate, and p-cresol at a loading rate of 340 gS/(m^3 · d), 340 gN/(m^3 · d) and600 gC/(m^3 · d), respectively, was achieved in an upflow anaerobic sludge blanket(UASB) reactor. The ratio of C/S could affect the elemental sulfur(S^0) accumulation, and the C/S ratio of 1.75:1 was optimal for S^0 accumulation. Strains Pseudomonas sp., Simplicispira sp., and Rhizobium sp. could likely yield heterotrophs. Strains Arcobacter sp.,Sulfurimonas sp., Sulfurovum sp., and Sulfurospirillum sp. are the autotrophics required for the proposed UASB system. At high loading rate, the autotrophic denitrification pathway declined faster than the heterotrophic pathway.Biological removal of sulfide, nitrate, and p-cresol at a loading rate of 340 gS/(m^3 · d), 340 gN/(m^3 · d) and600 gC/(m^3 · d), respectively, was achieved in an upflow anaerobic sludge blanket(UASB) reactor. The ratio of C/S could affect the elemental sulfur(S^0) accumulation, and the C/S ratio of 1.75:1 was optimal for S^0 accumulation. Strains Pseudomonas sp., Simplicispira sp., and Rhizobium sp. could likely yield heterotrophs. Strains Arcobacter sp.,Sulfurimonas sp., Sulfurovum sp., and Sulfurospirillum sp. are the autotrophics required for the proposed UASB system. At high loading rate, the autotrophic denitrification pathway declined faster than the heterotrophic pathway.

关 键 词：SULFIDE P-CRESOL MICROBIAL community ELEMENTAL sulfur 

分 类 号：X703[环境科学与工程—环境工程]