Greenhouse gas emissions from rotating biological contactors combined with hybrid constructed wetlands treating polluted river

文献类型： 外文期刊

第一作者： Xiong, Haifeng

作者： Xiong, Haifeng;Hu, Ning;Liang, Yinkun;Wang, Qinghua;Jiang, Chunli;Yang, Zhimin;Huang, Lei;Xiong, Haifeng;Hu, Ning;Liang, Yinkun;Wang, Qinghua;Jiang, Chunli;Yang, Zhimin;Huang, Lei;Huang, Lei

作者机构：

关键词： Rotating biological contactors; Hybrid constructed wetlands; Pollutant removal; Greenhouse gases emissions; Microbial communities

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.7； 五年影响因子：9.4 ）

ISSN： 0960-8524

年卷期： 2024 年 414 卷

页码：

收录情况： SCI

摘要： The rotating biological contactors combined with hybrid constructed wetlands (R-HCWs) has promising treatment performance, however, concerns persisted regarding greenhouse gases (GHGs) emissions. In this study, GHGs in the R-HCWs was evaluated, and results revealed that R-HCWs facilitated nitrogen conversion and provided alternating oxygen environments, thereby promoting the reduction of N2O and CH4 emissions. Therefore, the comprehensive global warming potential (8.7 +/- 2.7 g CO2-eqm(-3)d(-1)) for handling unit volume of river water was low, thus, greater ecological benefits were achieved. The relative abundance of functional microorganisms such as Bacillus, Acinetobacter, Nitrospira and norank_f__norank_o__SBR1031, increased due to warm season, which promoted the nitrogen cycle and N2O emission reduction. Anammox and denitrifying bacteria showed significantly correlated with N2O and CH4 emissions (p < 0.01). This study provides valuable insights for the potential adoption of biological and ecological integrated treatment approach optimized for improving water and mitigating GHGs emissions.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序