HYDROGEOCHEMICAL MODELING OF GROUNDWATER CHEMICAL ENVIRONMENTAL EVOLUTION IN HEBEI PLAIN

Using the hydrogeochemical modeling method, the groundwater chemical e nvironmental problems of the Hebei Plain which involve increasing of h ardness and total dissolved solids in piedmont area and mixing of sali ne water with fresh water In middle-eastern area are studied. The wate r-rock interactions and mass transfer along a groundwater flow path an d in mixing processes are calculated. Thus the evolution mechanisms of the groundwater chemical environment are brought tu light.