Effect of three kinds of surfactants and β-cyclodextrin on the phytoremediation of BDE-209 contaminated sediment

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Zhao, Liangyuan^1 ; Guo, Weijie^1 ; Zhao, Weihua^1 ; Long, Meng^1 ; Li, Huan^1

Basin Water Environmental Research Department, Yangtze River Scientific Research Institute, Wuhan, China^1

关键词: Aquatic macrophyte;    Beta-cyclodextrin;    Cd concentrations;    Contaminated sediment;    Phytoremediation;    Plant height;    Removal rate;    Solubilizers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012115/pdf
DOI  :  10.1088/1755-1315/64/1/012115

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Plant-accelerated removal of BDE-209 from sediment by aquatic macrophyte Scirpus validus Vahl in the presence of a cationic-surfactant (CTAB), an anionic-surfactant (SDS), a nonionic-surfactant (Tween 80) and β-cyclodextrin (β-CD) at the concentrations ranged from 300 mg/kg to 1000 mg/kg were investigated. Significantly negative effect were not observed for the growth of S. validus in terms of plant height and stem diatemeter, which indicated that it is preferable for CTAB, SDS, Tween 80 and β-cyclodextrin to be utilized as the BDE-209 phytoremediation amendment. Furthermore, CTAB, SDS and Tween 80 in the certain concentrations significantly enhanced the phytoremediation efficiencies and 11.78-19.33% of increase in BDE-209 removal rates was obtained. Significantly enhance of BDE-209 phytoremediation efficiency was not observed in the added β-CD concentration ranges. Results obtained from this study provided some insight with regard to the feasibility of phytoremediation for BDE-209 contaminated sediments with addition of suitable solubilizers, especially Tween 80.