生态环境学报Issue(7)：1208-1213,6.
污灌区复合污染土壤的植物修复研究
Phytoremediation of combined pollution soil in a sewage irrigation area
摘要
Abstract
The effects of different pasture planting on the remediation of PAHs and As in the combined pollution soil were investigated based on the pot experiments. The results presented that the degradation of rhizosphere microorganism was a major way for PAHs removal of soil. The PAHs removal by plant uptake was minor. In this study, the PAHs removal efficiencies were the highest for the soil planted by the hybrid Pennisetum, Gaodan grass and Sudangrass, with the values were 99.36%-99.67%. The lowest corresponding values were 97.78%for the soil planted by the endive. There is no obvious difference for As contents in the soil planted by different pastures. However, the available As contents in the soils planted by the hybrid Pennisetum, Gaodan grass and Sudangrass were highest. They increased 73.9%-96.6%comparing with that in the beginning of the final singling. The available As contents in the soils planted by the bluegrass were lowest, and increased only 21.4%. This study showed that the hybrid Pennisetum, Gaodan grass and Sudangrass were characterized by higher removal efficiencies of PAHs and As in the combined pollution soil. Thus, they were suitable for the remediation and controlling of the combined pollution farmland in the sewage irrigation area.关键词
污灌区/植物修复/复合污染/多环芳烃/重金属Key words
sewage irrigation area/phytoremediation/combined pollution/PAHs/heavy metal分类
资源环境引用本文复制引用
赵颖,刘利军,党晋华,史晓凯,向云,张丽..污灌区复合污染土壤的植物修复研究[J].生态环境学报,2013,(7):1208-1213,6.基金项目
山西省科技攻关项目 （）
