WANGXin-yi,FUBao-rong,ZHUHui,et al.Research Progress on Intensification of Pollutant Removal in Constructed Wetlands by Introducing Exogenous Microbials[J].China Water & Wastewater,2023,39(8):33-40.
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Research Progress on Intensification of Pollutant Removal in Constructed Wetlands by Introducing Exogenous Microbials

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第8期 Page: 33-40 Column: Date of publication: 2023-04-17
Author(s):
WANG　Xin-yi1; 2;  FU　Bao-rong3;  ZHU　Hui1;  CHEN　Xin1;  CHENG　Rui1;  YAN　Bai-xing1
（1. Key Laboratory of Wetland Ecology and Environment， Northeast Institute of Geography and Agroecology， Chinese Academy of Sciences， Changchun 130102， China； 2. College of Resources and Environment， University of Chinese Academy of Sciences， Beijing 100049， China； 3. School of Environmental Science， Liaoning University， Shenyang 110036， China）
Keywords:
constructed wetlands;  bioaugmentation;  denitrifying bacteria;  halophilic bacteria;  psychrotrophic bacteria;  immobilised microorganism technology
Abstract:
Microorganisms are the main contributors for pollutant removal in constructed wetlands (CWs). Based on the analysis and collation of domestic and foreign papers, recent research about four kinds of functional bacterium i.e. denitrifying bacteria, pollutant-degrading bacteria, halophilic bacteria and psychrotrophic bacteria were reviewed in this paper. The research progress and application potential of introducing exogenous microbial for intensifying the pollutant treatment function of CWs were analyzed. Moreover, the effects of exogenous microbial dosing methods (i.e. direct dosing bacteria and immobilized microorganisms) on the treatment performance of CWs were also discussed in detail. Bioaugmentation can not only enhance the degradation of nitrogen and specific pollutants in CWs, but also improve the operation efficiency of CWs under severe environmental conditions. In order to enhance the removal efficiency of pollutants in CWs and complete the relative technology system to intensify CWs water pollution treatment function by microorganisms, the following four aspects were recommended for future research: (1) the screening and application of high-efficiency degrading bacteria; (2) the optimization of the dosing methods for bacterial agents; (3) the evaluation of exogenous microorganism intensified CWs on long?term efficiency； and (4) the ecological safety assessment of exogenous strains to CWs.
Last Update: 2023-04-17