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Position: Home > Articles > The Desorption Kinetics of Phosphorus in the Sediment of Chagan Lake in Low Temperature Period Water Saving Irrigation 2013 (6) 18-21

低温明期磷在查干湖沉积物中的解吸动力学研夯

作  者:
李森;李莹;刘刚;黄继国;黄振华;史占峰;刘维纳
关键词:
低温;查干湖;磷;解吸动力学
摘  要:
选取我国北方典型碱性湖泊查干湖的沉积物为研究对象,在实验室运用水静态模拟方法研究了对于磷含量不同沉积物,在不同解吸时间(t)和不同水土比(w)条件下的解吸动力学过程.结果表明,在一定水土比条件下,沉积物中磷的释放量与解吸时间呈指数关系;在一定的解吸时间条件下,磷的解吸与水土比也呈现指数关系;而在一定的解吸时间和水土比条件下,磷的解析量与沉积物中磷的本底值成正比.通过实验,建立一个简单的解吸动力学模型Pd =0.017P0t0.087W1.498,可以用来描述低温条件下查干湖沉积物中磷的解吸过程.
译  名:
The Desorption Kinetics of Phosphorus in the Sediment of Chagan Lake in Low Temperature Period
关键词:
low temperature%Chagan Lake%phosphorus%desorption kinetics
摘  要:
Research on the sediment of Chagan Lake, one of the typical alkaline lakes in northern China. Using water static simula- tion method in the laboratory to study the desorption kinetics with the content of phosphorus, desorption time (t) and water/soil ra tios (W). The results showed that P released was exponentially related to t at any given W, and to W at any given t. The amount of P released was directly proportional to the value of the background in the conditions of some t and W. Through experiments, a sim- ple desorption kinetics model could be created, as Pd =0. 017P0 t0.875W1498 , which be used to describe the process of phosphorus de- sorption in Chagan Lake sediment at low temperature.

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