| 羟基磷灰石对棕壤和红壤铜吸附的影响 |
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| 引用本文： | 宋正国,唐世荣,丁永祯,居学海.羟基磷灰石对棕壤和红壤铜吸附的影响[J].生态环境,2011,20(1):164-168. |
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| 作者姓名： | 宋正国 唐世荣 丁永祯 居学海 |
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| 作者单位： | 农业部环境保护科研监测所生态毒理与环境修复研究中心//农业部产地环境与农产品安全重点开放实验室//天津市农业环境与农产品安全重点实验室,天津,300191 |
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| 基金项目： | 国家自然科学基金，天津市应用基础及前沿技术研究计划 |
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| 摘 要： | 采用等温平衡法,观测了羟基磷灰石对红壤、棕壤铜吸附量的影响,并应用Freundlich方程Cs=KfCen分析了土壤铜的吸附特征。结果表明,棕壤对铜的吸附能力明显高于红壤。以n（磷）∶n（铜）=1∶1向棕壤与红壤中施用羟基磷灰石,会增加两种土壤对铜的吸附量。其中,羟基磷灰石影响红壤对铜吸附能力明显高于棕壤。增加羟基磷灰石的施用量,会增加红壤与棕壤对铜的吸附量,提高土壤铜的吸附能力。高量羟基磷灰石n（磷）∶n（铜）=4∶1]的作用效果最为明显;与对照相比,铜的吸附量分别增加62.1%和28.4%。据此推测,在铜污染红壤或棕壤上,可以选用羟基磷灰石作为磷肥的肥源。
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| 关 键 词： | 羟基磷灰石 铜 棕壤 红壤 吸附 分配系数 |
Effect of hydroxyapatite on copper sorption in brown earth and red soil |
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| SONG Zhengguo,TANG Shirong,DING Yongzhen,JU Xuehai.Effect of hydroxyapatite on copper sorption in brown earth and red soil[J].Ecology and Environmnet,2011,20(1):164-168. |
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| Authors: | SONG Zhengguo TANG Shirong DING Yongzhen JU Xuehai |
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| Institution: | SONG Zhengguo,TANG Shirong*,DING Yongzhen,JU Xuehai Institute of Environmental Protection,Ministry of Agriculture of China//Key Laboratory of Production Environment and Agro-Product Safety,Ministry of Agriculture of China//Key Laboratory of Agricultural Environment and Agro-Product Safety,Tianjin 300191,China |
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| Abstract: | The present paper uses the isothermal equilibrium theory to investigate the effect of hydroxyapatite on copper sorption in brown earth and red soil,and Freundlich equation(Cs= KfCen) to characterize the sorption behaviors of copper.The results showed that brown earth had stronger ability to absorb Cu.than red soil.Compared to the non-phosphorus system,applied hydroxyapatite could increase capability to absorb copper in both brown earth and red soils,when applied at n(P): n(Cu)]= 1:1.The effect of applied hy... |
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| Keywords: | hydroxyapatite copper brown earth red earth sorption distribution coefficient |
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