Variation Characteristics of Chlorpyrifos in Nonsterile Wetland Plant Hydroponic System

Abstract

Six wetland plants were investigated for their effect on the degradation characteristics of chlorpyrifos in nonsterile hydroponic system at constant temperature of 28 • C. The results showed that the removal rates of chlorpyrifos in the water of plant systems were 1.26-5.56% higher than that in the control without plants. Scirpus validus and Typha angustifolia were better than other hygrophytes in elimination of chlorpyrifos. The removal rates of the two systems were up to 88%. Plants of acaulescent group had an advantage over caulescent group in removing chlorpyrifos. Phytoaccumulation of chlorpyrifos was observed, and the order of chlorpyrifos concentration in different plant tissues was root > stem > leaf. It was also found that chlorpyrifos and its metabolite TCP decreased rapidly at the initial step of the experiment.

Removal of pentachlorophenol from contaminated wastewater using phytoremediation and bioaugmentation processes

“…These kinds of macrophyte showed the required characteristics of phytoremediation because their rapid growth, easy spreading and harvesting. Besides, it has been revealed that T. angustifolia have the ability to tolerate and remove various xenobiotic compounds, e.g., atrazine, metalaxyl, simazine, methyl parathion, chlorinated benzenes, chlorpyrifos and metformin) (Moore et al 2013;Wang et al 2013;Cui et al 2015). Although, some knowledge concerning particularly the transformation of organic compounds by T. angustifolia has not yet been studied rigorously to date.…”