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Performance and microbial mechanism in sulfide-driven autotrophic denitrification by different inoculation sources in face of various sulfide and sulfate stress.
Feng, Lijuan; Sun, Xiaoran; Wang, Junqiang; Xie, Tianna; Wu, Zhangli; Xu, Jingke; Wang, Zixuan; Yang, Guangfeng.
Afiliación
  • Feng L; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China.
  • Sun X; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China.
  • Wang J; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China.
  • Xie T; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China.
  • Wu Z; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China.
  • Xu J; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China.
  • Wang Z; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China.
  • Yang G; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China; College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316022, People's Republic of China. Electronic address: ygfscu@1
Bioresour Technol ; 413: 131443, 2024 Dec.
Article en En | MEDLINE | ID: mdl-39241813
ABSTRACT
To develop a reliable sulfide (S2-) autotrophic denitrification (SAD) process under S2- and SO42- salinity stresses, the biofilm performance and microbial mechanisms were comparatively studied using different inocula of activated sludge (AS) and intertidal sediment (IS). Biofilm IS enriched more denitrification genes (0.34 %) and S2- oxidation genes (0.29 %) than those with AS. Higher denitrification performance was obtained under S2- (100 mg/L) and SO42- (5-15 g/L Na2SO4) stresses, but no significantly differences were observed under levels of 0-200 mg/L S2- and 30 g/L Na2SO4. Notably, biofilm samples in SAD systems with IS still had more S2- oxidation genes at high S2- levels of 100-200 mg/L and Na2SO4 level of 30 g/L. The key functional genus Thiobacillus accumulated well at 30 g/L Na2SO4, but was strongly inhibited at 200 mg/L S2-. The findings were advantage to SAD application under sulfide and salinity stresses.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sulfatos / Sulfuros / Biopelículas / Procesos Autotróficos / Desnitrificación Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sulfatos / Sulfuros / Biopelículas / Procesos Autotróficos / Desnitrificación Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido