摘要
采用水培法,对旱伞草、尖尾芋和富贵竹三种观赏植物在不同浓度的含Cr(Ⅵ)污水中的生长情况及其对废水中Cr(Ⅵ)的去除效果进行实验研究.结果表明:为期两周,在Cr(Ⅵ)浓度为0.1~10mg·L-1时,旱伞草对Cr(Ⅵ)表现出较好的适应能力和耐受性,其生物量增长率最高可达47.4%,且对Cr(Ⅵ)的修复去除效果最好,Cr(Ⅵ)的去除率均大于90%,达到了车间排放标准,说明旱伞草用于Cr(Ⅵ)污染水体的修复具有较好的效果和较大的潜力.
Three ornamental hydrophytes plants:Cyperus alternifolius,Alocasia cucullata and Dracaena sanderiana are planted in Wastewater Containing different levels of Cr(VI)by hydroponics experiments.In order to study their tolerance to Cr(Ⅵ).The biomass,the growth rate,the removal ratio of Cr(VI)and enrichment quality were studied.The results show that within the range of 0.1~10mg·L-1 of Cr(VI)initial concentrations and over a two-week growing period,Cyperus alternifolius shows better adaptation and tolerance to Cr(VI),The highest growth rate of Cyperus alternifolius attains to 47.3%;Cyperus alternifolius also shows good efficiency of the Cr(VI)removal,and the removal ratio of 90% Cr(VI)is obtained in all levels of Cr(VI)concentrations.
出处
《玉溪师范学院学报》
2014年第8期32-36,共5页
Journal of Yuxi Normal University
基金
玉溪师范学院大学生创新计划项目
编号:2013B02
关键词
植物修复
铬污染
污水处理
旱伞草
尖尾芋
富贵竹
Phytoremediation
Chromium pollution
Wastewater treatment
Cyperus alternifolius
Alocasia cucullata
Dracaena sanderiana
