title: Elemental sulfur formation and nitrogen removal from wastewaters by autotrophic denitrifiers and anammox bacteria.
abstract: Elemental sulfur (S(0)) formation from and nitrogen removal on sulfide, nitrate and ammonium-laden wastewaters were achieved by denitrifying ammonium oxidation (DEAMOX) reactor with autotrophic denitrifiers and anaerobic ammonium oxidation (anammox) bacteria. The sulfide to nitrate ratio is a key process parameter for excess accumulation of S(0) and a ratio of 1.31:1 is a proposed optimum. The Alishewanella, Thauera and Candidatus Anammoximicrobium present respectively the autotrophic denitrifiers and anammox bacteria for the reactor. DEAMOX is demonstrated promising biological process for treating organics-deficient (S+N) wastewaters with excess S(0) production.
authors.affiliation: College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China. Electronic address: liuchunshuang723@126.com.
authors.forename: Chunshuang
authors.initials: C
authors.lastname: Liu
authors.affiliation: College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China.
authors.forename: Dongfeng
authors.initials: D
authors.lastname: Zhao
authors.affiliation: College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China.
authors.forename: Laihong
authors.initials: L
authors.lastname: Yan
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology 150090, China.
authors.forename: Aijie
authors.initials: A
authors.lastname: Wang
authors.affiliation: College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Gu
authors.affiliation: Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan. Electronic address: djlee@ntu.edu.tw.
authors.forename: Duu-Jong
authors.initials: DJ
authors.lastname: Lee
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D019149:Bioreactors; D058440:Denitrification; D009584:Nitrogen / Q000302:isolation & purification*; D013455:Sulfur / Q000737:chemistry*; D062065:Wastewater / Q000737:chemistry*
chemical_list: D009584:Nitrogen; D013455:Sulfur; D062065:Wastewater
keywords: Anammox; Autotrophic denitrifier; Elemental sulfur; Sulfide