Effect of bone char application on Pb bioavailability in a Pb-contaminated soil
文献类型:期刊论文
作者 | Zhu, YG; McKay, G; Ma, YB; Chen, SB |
刊名 | ENVIRONMENTAL POLLUTION
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出版日期 | 2006 |
卷号 | 139期号:3页码:433-439 |
关键词 | Bone Char Amendment Bioavailability Pb-contaminated Soil |
英文摘要 | The effects of bone char (BC) application oil the bioavailability of Pb in a polluted soil from Hunan Province, China were examined. The Pb-contaminated soil was treated with two types of bone char, one from the UK and the other from China. The bioavailability of Pb was determined in terms of the uptake by Chinese cabbage (Brassica chinensis L.), sequential extraction and X-ray diffraction analysis. The results indicate that the Pb concentrations in both shoots and roots decreased with increasing quantities of added bone char, and the application of BC from the UK at the rate of 1.6% (w:w) had the largest effect. Lead Pb concentrations in the shoots and roots decreased by 56.0% and 75.9% respectively, whereas the application of BC from Zhejiang Province, China at the rate of 1.6% (w:w) reduced Pb concentrations in the shoots and roots to 2.04 mg kg(-1) and 8.42 mg kg-(1), respectively, only 45.8% and 30.2% compared to file control treatment. Sequential extraction results indicate that the addition of bone char, as a metal-immobilizing agent, substantially transforms soil Pb from non-residual fractions to the residual fraction. The transformation was further confirmed using X-ray diffraction studies. (c) 2005 Elsevier Ltd. All rights reserved. |
WOS记录号 | WOS:000234792400003 |
源URL | [http://ir.rcees.ac.cn/handle/311016/23055] ![]() |
专题 | 生态环境研究中心_土壤环境科学实验室 |
推荐引用方式 GB/T 7714 | Zhu, YG,McKay, G,Ma, YB,et al. Effect of bone char application on Pb bioavailability in a Pb-contaminated soil[J]. ENVIRONMENTAL POLLUTION,2006,139(3):433-439. |
APA | Zhu, YG,McKay, G,Ma, YB,&Chen, SB.(2006).Effect of bone char application on Pb bioavailability in a Pb-contaminated soil.ENVIRONMENTAL POLLUTION,139(3),433-439. |
MLA | Zhu, YG,et al."Effect of bone char application on Pb bioavailability in a Pb-contaminated soil".ENVIRONMENTAL POLLUTION 139.3(2006):433-439. |
入库方式: OAI收割
来源:生态环境研究中心
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