本文研究了在模拟地下水介质中，粘土对硒的吸附(解吸)规律和等温吸附方程。

In this paper the sorption (desorption) behaviour of selenium (in simulated groundwater) (with clay) and the sorption (desorption) isotherm equation was studied.

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采用由微孔填充理论导出的吸附平衡方程对所测得的等温线进行了拟合，计算相应的吸附热；

The adsorption equilibrium equation deduced through the theory of volume filling of micro-pore was used to fit the adsorption isotherms (obtained, ) and corresponding adsorption heat was calculated.

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吸附等温线是平衡方程序。

The absorption isotherms are equilibrium equations.

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