pressure dispersion

A mathematical model was presented to calculate phosphorus flux across water-soil interface of construc- ted wetlands by employing hydrodynamic dispersion and sorption theory.

采用水动力弥散和吸附理论建立了表流湿地水-土界面磷通量模型,定义了湿地汇-源转换的临界水体磷浓度值。

It is formed for the pollutants with the groundwater circulating system as the carrier, under the concerted action of convection, hydrodynamic dispersion, adsorption, desorption and biochemical.

通过对其组成及特征进行分析，提出地下水污染系统可分为局部、浅部和深部污染系统，它是污染质以地下水循环系统为载体，在对流、水动力弥散、吸附解吸和生化反应等的共同作用下形成的。

The results show that hydrodynamic dispersion and indigenous biodegradation under mixed electron accepter conditions are primary mechanisms for the attenuation of ethanol and BTEX in porous media.

试验结果表明:水动力弥散和混合电子受体条件下的土著微生物降解是乙醇和单环芳香烃(BTEX)自然衰减的主要过程。

A solvent and disperse kinetics model applied to air sparging for the contaminated groundwater with petrochemicals is presented.

对空气注射法脱除地下水中油类污染物提出一个溶解动力学和弥散动力学模型 。