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纳米羟基磷灰石修复镉铅污染土壤的效果评价
引用本文:钱翌,褚兴飞.纳米羟基磷灰石修复镉铅污染土壤的效果评价[J].环境科学与技术,2011,34(11):176-179.
作者姓名:钱翌  褚兴飞
作者单位:青岛科技大学环境与安全工程学院,山东青岛,266042
基金项目:国家自然科学基金项目资助(40601062)
摘    要:文章研究以纳米羟基磷灰石为修复材料,采用人工模拟污染土壤的方法,借助Tessier五步法分析土壤中镉、铅的形态,研究了纳米羟基磷灰石对镉、铅污染土壤的修复效果,研究结果表明:n-HAP对土壤中有效态镉有一定程度的吸附钝化作用;n-HAP的投加比例为5%时,对Cd污染土壤的修复效果最好,Cd的有效态下降比率达到了49%;n-HAP对人工模拟污染土壤中有效态铅的钝化效果比较明显,对有效态铅的降低率达到了90%的水平,且平衡时间越长,修复效果越好;n-HAP对铅污染土壤的修复效果要好于镉污染的。

关 键 词:纳米羟基磷灰石      修复  评价

Effect Assessment of Nano-particle Hydroxyapatite for Remediation of Cd and Pb Contaminated Soil
QIAN Yi,CHU Xing-fei.Effect Assessment of Nano-particle Hydroxyapatite for Remediation of Cd and Pb Contaminated Soil[J].Environmental Science and Technology,2011,34(11):176-179.
Authors:QIAN Yi  CHU Xing-fei
Institution:QIAN Yi,CHU Xing-fei(College of Environment and Safety Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)
Abstract:Forms of lead and cadmium were analyzed with five-step Tessier extraction method by adding different proportions of nano-hydroxyapatite(n-HAP) and taking artificial soil pollution means.Assessment of remediation of soil heavy metals with n-HAP was studied by bioavailability.Results showed that n-HAP had a certain degree of adsorption and inactivation effect on cadmium.When 5g of n-HAP was added into 100g soil sample,the effect of remediation was best,with removal rate of n-HAP to the available state of heav...
Keywords:Nano-hydroxyapatite(n-HAP)  Cd  Pb  remediation  assessment  
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