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Phosphorus Uptake Kinetics of Different Types of Duckweed
Author(s): 
Pages: 48-52
Year: Issue:  2
Journal: Rural Eco-Environment

Keyword:  浮萍 磷污水 HPO42- 吸收动力学;
Abstract: 以长江三角洲地区常见的3种浮萍——稀脉浮萍(Lemna aequinoctialis)、少根紫萍(Spirodela oligorrhiza)和紫萍(Spriodela polyrrhiza)为对象,研究不同品种浮萍对HPO42-的吸收动力学影响。结果表明,3种浮萍对无机磷的吸收动力学特征基本可采用Michaelis-Menten方程描述3,种浮萍无机磷吸收速率V对磷浓度S双倒数曲线的拟合关系均在α=0.01水平上显著。稀脉浮萍对无机磷的亲和力较强,适宜应用于对低磷浓度污水的净化;紫萍对无机磷的最大吸收速率Vmax较高,适宜应用于对高磷浓度污水的净化。
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