الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
A detailed hydrogeochemical characterization (ion dominance, ion distribution, water types, and chemical facies) and salinization processes identifications (dissolution / precipitation, absorption, cation exchange, oxidation / reduction …..etc) have been carried out on 50 groundwater samples distributed in the study area. The Miocene aquifer groundwater samples are highly salinized and mineralogically more developed than Quaternary. This is related to its lithologic nature, relatively retarded flow and less active recharge. The Quaternary aquifer shows both early stage of salinity evolution and developed one along flow and in the zone of mixing with Miocene.
Groundwater flow regime has been numerically modeled in Inshas area. Past behavior of the groundwater system has been reproduced and future impacts have been simulated. A continuous increase in groundwater level has been concluded and valued through simulation; this may threatens the design structure of the nuclear research reactor facility in the study area. A proposed scenario has been implemented to withdraw the expected future increment in groundwater level.
A hypothetical possible leakage of radionuclides from the underground settling tanks of the nuclear and radioactive waste was proposed, as it would threaten the groundwater system of the study area. The behavior of contaminants transport in groundwater in Inshas has been simulated for four radionuclides (137Cs, 90Sr, 60Co, 3H) .The plume behavior of the four radionuclide’s was simulated under a relevant distance / time scenario, the effects of their variant adsorption / distribution coefficients (kd) and decay factor have been investigated.