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Effect of external carbon addition and enrofloxacin on the denitrification and microbial community of sequencing batch membrane reactor treating synthetic mariculture wastewater.
Zhang, Xue; Jin, Chunji; Gu, Baiming; Ji, Junyuan; Zhao, Yangguo; Gao, Mengchun; She, Zonglian.
Afiliación
  • Zhang X; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
  • Jin C; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China. Electronic address: jinhou@ouc.edu.cn.
  • Gu B; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
  • Ji J; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
  • Zhao Y; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
  • Gao M; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
  • She Z; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
J Environ Manage ; 323: 116155, 2022 Dec 01.
Article en En | MEDLINE | ID: mdl-36116256
ABSTRACT
The effect of sequencing batch membrane bioreactor (SMBR) on external carbon addition and enrofloxacin was investigated to treat synthetic mariculture wastewater. Anoxic/anaerobic and low COD/TN can improve the ammonia oxidation of the system, and the NH4+-N removal efficiency above 99%. External carbon was added and an anoxic environment was set to provide a suitable environment for denitrifying bacteria. When the external carbon source was 50-207 mg/L, the TN removal efficiency (31.82%-37.73%) and the COD of the effluent (28.85-36.58 mg/L) had little change. The partition resistance model showed that cake deposition resistance (RC,irr) and irreversible resistance (RPB) were the main components. And with the increase in cleaning times, the fouling rate of membrane components accelerated. Enrofloxacin can promote the TN removal efficiency (45.66%-93.74%) and had a significant effect on TM7a, Cohaesibacter, Vibrio and Phaeobacter.
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Texto completo: 1 Bases de datos: MEDLINE Métodos Terapéuticos y Terapias MTCI: Terapias_biologicas / Aromoterapia Asunto principal: Aguas Residuales / Microbiota Idioma: En Revista: J Environ Manage Año: 2022 Tipo del documento: Article País de afiliación: China
Texto completo
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Texto completo: 1 Bases de datos: MEDLINE Métodos Terapéuticos y Terapias MTCI: Terapias_biologicas / Aromoterapia Asunto principal: Aguas Residuales / Microbiota Idioma: En Revista: J Environ Manage Año: 2022 Tipo del documento: Article País de afiliación: China