besides human dental and skeletal fluorosis, drinking water above permissible levels of fluoride is known to cause a wide range of adverse health effects. in this study, the adsorption of fluoride from aqueous solution onto pretreated zeolite has been studied by using batch test. the large surface area of natural zeolite (i. e., clinoptilolite from miyaneh region, iran) was utilized to create a...

Reactive zero valent iron nanoparticles can degrade toxic nonaqueous phase liquids (NAPL) rapidly in contaminated groundwater to nontoxic products in situ, provided they can be delivered preferentially to the NAPL/water (oil/water) interface. This study demonstrates the ability of novel triblock copolymers to modify the nanoiron surface chemistry in a way that both promotes their colloidal stab...

Groundwater is an important resource that can be used for various purposes. Various factors change the chemistry of GW, such as chemical composition aquifer well leaching human waste into groundwater. The study area a barren land covered by some sabkhas, in addition to agricultural fields. aims assess groundwater quality drinking purposes using Water Quality Index. chemically heterogeneous and ...

Reactions involving iron play a major role in the environmental cycling of a wide range of important organic, inorganic and radioactive contaminants. Consequently, a range of environmental clean-up technologies have been proposed or developed which utilise iron chemistry to remediate contaminated land and surface and subsurface waters, e.g. the use of injected zero zero-valent iron nanoparticle...

In this paper, a simplified bilinear method combined with a fractional transform has been used to obtain a new multiple soliton solutions for the Fractional coupled fractional kdV equations with variable coefficients. These systems appear in biology, engineering, mechanics, complex physics phenomena economics, signal image processing, notably control theory, groundwater problems and chemistry. ...