| 脱水污泥在美人蕉种植中的应用 |
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| 引用本文： | 李淑更,张可方,周少奇,陈秋丽,张立秋.脱水污泥在美人蕉种植中的应用[J].环境科学研究,2008,21(2):158-162. |
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| 作者姓名： | 李淑更 张可方 周少奇 陈秋丽 张立秋 |
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| 作者单位： | 1.华南理工大学 环境科学与工程学院,广东 广州 510006;广州大学 环境科学与工程学院,广东 广州 510006 |
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| 基金项目： | 广东省科技计划
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建设部科技计划 |
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| 摘 要： | 在脱水污泥施用量分别为0，165，330，495和660 t/hm2时对美人蕉生长情况的影响进行了研究，同时研究了污泥的施用和美人蕉的种植对土壤中重金属含量的影响. 结果表明:当污泥的施用量为660 t/hm2时，美人蕉无法生长；当污泥的施用量在165～495 t/hm2时，美人蕉获得了良好的生长响应. 污泥的施用使土壤中重金属含量增加，但通过美人蕉的种植，可以降低土壤中的w(Cd)和w(Ni)，以及部分降低w(Zn)，说明美人蕉可以用于污泥的修复研究；污泥的施用还增加了土壤中营养物质的含量，能够改良贫瘠土壤.
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| 关 键 词： | 脱水污泥 重金属 美人蕉 植物修复 |
| 文章编号： | 1001-6929(2008)02-0158-05 |
| 收稿时间： | 2007/6/20 0:00:00 |
| 修稿时间： | 2007年6月20日 |
Application of Dewatered Sludge on Growth of Canna |
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| LI Shu-geng,ZHANG Ke-fang,ZHOU Shao-qi,CHEN Qiu-li and ZHANG Li-qiu.Application of Dewatered Sludge on Growth of Canna[J].Research of Environmental Sciences,2008,21(2):158-162. |
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| Authors: | LI Shu-geng ZHANG Ke-fang ZHOU Shao-qi CHEN Qiu-li and ZHANG Li-qiu |
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| Institution: | 1.College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China ;School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China2.School of Civil Engineering, Guangzhou University, Guangzhou 510006, China3.College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China |
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| Abstract: | The effects of various dewatered sludge loadings (0, 165, 330, 495 and660 t/hm2 respectively) in soil on growth of Canna were studied. The effects of sludge applying and Canna planting on heavy metal contents in the soil were alsostudied. The results showed that the Canna couldn't survive with 660 t/hm2 sludge loading; when the loading was between 165～495 t/hm2, the Canna growth patterns exhibited a pronounced positive growth response. The sludge application caused increase in heavy metal concentrations in the soil, but after Canna planting, the concentrations of Cd and Ni had decreased significantly, with little decrease in Zn concentration. It can be concluded that Canna can be used for phytoremediation of sludge and sludge can be used to amend lean soil. |
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| Keywords: | dewatered sludge heavy metals Canna phytoremediation |
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