Characteristics of chlorpyrifos removal and microbial community analysis for constructed wetlands systems. Issue 1 (February 2020)

• Record Type: Journal Article
• Authors: Zhao, Jing; Zhua, Weihong; Wang, Yanji; Jin, Mingji
• Is Part Of: IOP conference series. Volume 450:Issue 1(2020)
• Publication Date: 2020-02
• Subjects: Constructed wetland -- Chlorpyrifos -- Removal characteristics -- Microbial community -- High-throughput sequencing; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/450/1/012015
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The mechanisms of chlorpyrifos removal from constructed wetland systems were determined using different initial concentrations of chlorpyrifos. The microbial community structure in the wetland system was analyzed using high-throughput sequencing technology. The results showed that, in the wetland system, the removal of chlorpyrifos was accomplished by combined substrate adsorption, plant absorption, and microbial degradation. However, there were significant differences in the removal of chlorpyrifos by substrate, plants, and microbes when different initial concentrations of chlorpyrifos were used, and with different wetland systems. High-throughput sequencing results showed that there was a negative correlation between the microbial community richness in late operation of wetland systems and the initial concentration of chlorpyrifos. In the wetland systems, Proteobacteria and Acidobacteria were the predominant bacterial phyla that conducted the removal of chlorpyrifos.