Improved simultaneous nitrification-denitrification in fixed-bed baffled bioreactors treating mariculture wastewater: Performance and microbial community behaviors

文献类型： 外文期刊

第一作者： Guo, Peng

作者： Guo, Peng;Wang, Qiong;Wang, Yi;Cai, Fang;Cui, Mingyu;Gao, Xiuqing;Ni, Lingfang;Zheng, Daoqiong;Zhang, Dongdong;Xu, Silong;Xu, Silong;Cui, Mingyu;Gao, Xiuqing;Zheng, Zhiwei

作者机构：

关键词： Mariculture wastewater; Biofilm; Fixed -bed baffled bioreactors; Simultaneous nitrification -denitrification; Microbial community

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.4； 五年影响因子：10.6 ）

ISSN： 0960-8524

年卷期： 2023 年 385 卷

页码：

收录情况： SCI

摘要： As mariculture develops, wastewater treatment becomes crucial. In this study, fixed-bed baffled reactors (FBRs) packed with carbon fiber (CFBR) or polyurethane (PFBR) as biofilm carriers were used for mariculture wastewater treatment. Under salinity shocks between 0.10 and 30.00 g/L, the reactors showed efficient and stable nitrogen removal capacities, and the maximum NH4+-N removal rates were 107.31 and 105.42 mg/(L & sdot;d) for CFBR and PFBR, respectively, with an initial NH4+-N concentration of 120.00 mg/L. Further, in the independent aerobic chambers of the FBRs for nitrogen removal, taxa enrichment varied depending on the biofilm carrier, and the assembly process was more deterministic in CFBR than in PFBR. Two distinct clusters representing the spatial distribution of the adhering and deposited sludge in CFBR and the front and rear compartments in PFBR were noted. Furthermore, microbial interactions were more numerous and stable in CFBR. These findings improve the application prospects of FBRs in mariculture wastewater treatment.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序