| 洱海弥苴河河口沉积物磷吸附特性研究 |
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| 引用本文： | 白晓华,;李丰超,;秦小萍.洱海弥苴河河口沉积物磷吸附特性研究[J].环境科学导刊,2014(5):18-21. |
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| 作者姓名： | 白晓华 ;李丰超 ;秦小萍 |
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| 作者单位： | [1]云南省环境科学研究院云南高原湖泊流域污染过程与管理重点实验室筹,云南昆明650034; [2]云南农业大学水利水电与建筑学院,云南昆明650201; [3]云南农业大学农业生物多样性与病虫害控制教育部重点实验室,云南昆明650201 |
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| 基金项目： | 云南省科技计划项目（2008CA020）. |
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| 摘 要： | 以洱海主要入湖河流弥苴河的河口表层沉积物为实验对象，研究其磷吸附特性。研究结果表明，Elovich方程对沉积物吸磷动力学拟合较好，考虑沉积物原有吸附态磷的修正Langmuir方程能较好描述弥苴河河口表层沉积物等温吸附特性。弥苴河河口沉积物存在释磷风险，沉积物间隙水正磷浓度远高于临界磷平衡浓度。
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| 关 键 词： | 弥苴河 河口 表层沉积物 磷 吸附特性 洱海 |
Phosphorus Adsorption Characteristics in the SurfaceSediments of Miju River Estuary of ErhaiLake |
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| Institution: | BAI Xiao-hua, LI Feng-chao, QIN Xiao-ping ( 1. Yunnan Institute of Environmental Science, Yunnan Key Laboratory of Pollution Process and Management of Plateau Lake- Watershed, Kunming Yunnan 650034 China) |
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| Abstract: | The study of characteristics of phosphorus adsorption in the surface sediments in Miju River estuary of ErhaiLake showed that the modified Langmuir model considering adsorbed phosphate may well describe the property of isothermal adsorption.The Elovich equation fits adsorption kinetics process.A high risk of phosphate release from surface sediments would exist because phosphate content in porewater of sediments is much higher than the equilibrium critical concentration of phosphorus adsorption. |
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| Keywords: | Miju River estuary surface sediments phosphorus adsorption characteristics Erhai Lake |
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