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| 垂序商陆对污染水体重金属去除潜力的研究 | |
| 引用本文： | 薛生国,周晓花,刘恒,陈英旭.垂序商陆对污染水体重金属去除潜力的研究[J].中南大学学报(自然科学版),2011,42(4). |
| 作者姓名： | 薛生国 周晓花 刘恒 陈英旭 |
| 作者单位： | 1. 中南大学冶金科学与工程学院,湖南长沙,410083;浙江大学环境与资源学院,浙江杭州,310029 2. 中南大学冶金科学与工程学院,湖南长沙,410083 3. 浙江大学环境与资源学院,浙江杭州,310029 |
| 基金项目： | 国家公益性(环保)行业科研项目，国家自然科学基金，中国博士后科学基金，中国博士后科学基金特别资助项目 |
| 摘 要： | 以超积累植物垂序商陆为实验材料,通过温室实验,探讨其应用于污染水体的植物修复潜力.选取生长一致的垂序商陆幼苗置于不同重金属水平(Mn2+,Zn2+和Cd2+)的生长介质,分别在0,2,4,6,8和10 d测定溶液中的重金属含量;10 d后收获垂序商陆,并将植株分为地上部和根系,用原子吸收法测定植物不同部位的重金属含量.研究结果表明:10 d内垂序商陆对Mn2+,Zn2+和Cd2+的去除率分别为35.4%～49.7%,38.1%～40.0%和50.8%～53.7%;在不同条件下垂序商陆体内重金属含量不同,但均随着生长介质中重金属水平的提高而上升;垂序商陆地上部分锰含量较高,而锌和镉则主要吸附在根系;垂序商陆对水体重金属的去除能力表现为植株吸收和根系吸附作用的复合;利用垂序商陆种苗实施低浓度重金属废水的植物修复具有广阔的应用前景. |
| 关 键 词： | 垂序商陆 重金属 污染水体 去除潜力 |
Potential of Phytolacca americana for removal of heavy metals from contaminated waters |
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| XUE Sheng-guo,ZHOU Xiao-hua,LIU Heng,CHEN Ying-xu.Potential of Phytolacca americana for removal of heavy metals from contaminated waters[J].Journal of Central South University:Science and Technology,2011,42(4). | |
| Authors: | XUE Sheng-guo ZHOU Xiao-hua LIU Heng CHEN Ying-xu |
| Institution: | XUE Sheng-guo1,2,ZHOU Xiao-hua1,LIU Heng1,CHEN Ying-xu2 (1.School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China,2.College of Environmental and Resource Science,Zhejiang University,Hangzhou 310029,China) |
| Abstract: | A greenhouse study was carried out to explore the potential of Phytolacca americana for removal of heavy metals from contaminated waters.The uniform seedlings for each treatment group were selected and grown on the nutrient solution supplemented with Mn2+,Zn2+ and Cd2+ of different concentrations.The metal concentrations in solution were determined at 0,2,4,6,8 and 10 d,respectively;and after 10 d cultivation,the metal concentration was determined in the plant using an atomic absorption spectrophotometer.Af... |
| Keywords: | Phytolacca americana Linn heavy metals contaminated waters removal potential |
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