The Blocking Effect of Clay on Groundwater Ions
5. Blockege with Clay
Drain Services Dundee, The blocking effect of clay on groundwater ions is one of the most important issues in saline water intrusion. It influences the downward movement of saline groundwater, soil chemistry and water quality zoning. Dundee Business Online, The blocking strength of clay can be analyzed by pressure permeation tests and adsorption isothermal test, among which the adsorption isotherm approach is more convenient than the pressure permeation method. A strong correlation exists between the retardation coefficient of clay for Na+, Ca2+ and Mg2+ in groundwater and the permeability of a depth's clay mineral layer. The higher the retardation, the more the conductivity. Clay has a dominant blocking effect on the upward movement of charged ions after deferrification.
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