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One of the most important sources of potable water throughout the world is the ground water, which is currently under stress due to human activities and consumption. Therefore, the presence and transport of contaminants in the groundwater represents an important threat to the human health and the environment. Many studies dealing with the groundwater quality and its sustainable use are found in the literature. Latest research shows a great opportunity of removing groundwater contaminants by using clay. Thus, an ex...

Water resources, particularly the phreatic ones, are exposed to a high risk of nitrates pollution. This pollution appears mostly in rural areas, due to improper use of fertilizers, improper waste storage or local sources of infestation, like animal sheds, and so on. Recent researches have indicated that clay can be used for groundwater decontamination. Mass transport between the unsaturated and saturated zones greatly influences subsurface processes. The transition zone between the vadose zone and the saturated zo...