| 上覆水性质对沉积物吸附有机污染物能力的影响 |
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| 引用本文： | 陈华林,陈英旭,许云台,沈梦蔚.上覆水性质对沉积物吸附有机污染物能力的影响[J].应用生态学报,2005,16(10):1938-1942. |
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| 作者姓名： | 陈华林 陈英旭 许云台 沈梦蔚 |
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| 作者单位： | 1. 浙江大学环境工程系, 杭州 310029;2. 温州师范学院生命与环境科学学院, 温州 325027 |
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| 基金项目： | 国家重点基础研究发展规划资助项目(2002CB410808). |
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| 摘 要： | 采用正交实验法研究了温度、pH、离子强度和溶解性有机质(DOC)对沉积物吸附菲和五氯酚(PCP)能力的影响.结果表明,上覆水温度和pH对个别沉积物的吸附能力有显著影响,其他因素及交互作用对菲和PCP的吸附无显著影响.沉积物对菲的吸附能力随温度升高而降低,对PCP在中温(20℃)时最小.pH对菲的吸附无显著影响,PCP的吸附量随pH升高而降低.DOC升高微弱地降低了菲和PCP的吸附,离子强度升高使PCP的吸附有微弱升高.沉积物对有机污染物的吸附能力主要由沉积物和有机污染物性质决定,受上覆水性质影响较小.
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| 关 键 词： | 菲 五氯酚 沉积物 吸附 |
| 文章编号： | 1001-9332(2005)10-1938-05 |
| 收稿时间： | 2004-07-03 |
| 修稿时间： | 2005-04-07 |
Effects of overlying water properties on sorption of organic pollutants in sediments |
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| CHEN Hualin, CHEN Yingxu, XU Yuntai, SHEN Mengwei.Effects of overlying water properties on sorption of organic pollutants in sediments[J].Chinese Journal of Applied Ecology,2005,16(10):1938-1942. |
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| Authors: | CHEN Hualin CHEN Yingxu XU Yuntai SHEN Mengwei |
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| Institution: | 1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China;2. School of Life and Environmental Sciences, Wenzhou Normal College, Wenzhou 325027, China |
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| Abstract: | By the method of orthogonal experiment, this paper studied the effects of overlying water temperature, pH, ionic strength, and dissolved organic carbon (DOC) on the sorption of phenanthrene and pentachlorophenol (PCP) in sediments. The results showed that temperature was the main factor affecting the sorption behavior of phenanthrene, with the trend of partition coefficient (Kd) decreased with temperature. For PCP, its Kd was the smallest at 20 degrees C, and its sorption was decreased with pH. The DOC content of overlying water slightly decreased the Kd of phenanthrene and PCP, and ionic strength only increased the Kd of PCP slightly. The sorption capacity of organic pollutants in sediment was mainly determined by the properties of organic pollutants and sediments. |
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| Keywords: | Phenanthrene Pentachlorophenol (PCP) Sediment Sorption |
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