title: Bioaugmentation of activated sludge with elemental sulfur producing strain Thiopseudomonas denitrificans X2 against nitrate shock load.
abstract: The sulfide and nitrogen compounds in wastewaters are toxic and cause a serious environmental problem. Thiopseudomonas denitrificans X2, which is the type species of a novel genus Thiopseudomonas was used for bioaugmentation. It oxidized sulfide and acetate with nitrate, and generated elemental sulfur that could be recovered as resource. The generation rate of elemental sulfur was enhanced significantly by the bioaugmentation under the condition of excessive nitrate feeding. The inoculums survived and worked actively in the activated sludge system as the dominant population. Thiopseudomonas denitrificans X2 could be applied to wastewater treatment and resource recovery simultaneously.
authors: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
authors: Wenbo
authors: W
authors: Tan
authors: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
authors: Cong
authors: C
authors: Huang
authors: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
authors: Chuan
authors: C
authors: Chen
authors: Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.
authors: Bin
authors: B
authors: Liang
authors: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China. Electronic address: waj0578@hit.edu.cn.
authors: Aijie
authors: A
authors: Wang
mesh_terms: D000085:Acetates / Q000302:isolation & purification; D001673:Biodegradation, Environmental / Q000187:drug effects; D019149:Bioreactors / Q000382:microbiology; D009566:Nitrates / Q000494:pharmacology*; D009573:Nitrites / Q000302:isolation & purification; D010084:Oxidation-Reduction; D011549:Pseudomonas; D012722:Sewage / Q000382:microbiology*; D013440:Sulfides / Q000302:isolation & purification; D013455:Sulfur / Q000378:metabolism*; D062065:Wastewater / Q000382:microbiology
chemical_list: D000085:Acetates; D009566:Nitrates; D009573:Nitrites; D012722:Sewage; D013440:Sulfides; D013455:Sulfur; D062065:Wastewater
keywords: Bioaugmentation; Elemental sulfur; Resource recovery; Thiopseudomonas denitrificans X2