Swelling clays play a major role in current concepts for the underground disposal of high-level nuclear waste in deep geological formations. In one of the multi-barrier concepts for preventing the escape of radioactive substances from a high-level nuclear waste repository, the barrier consists of a copper container, compacted bentonite as buffer and backfill (the engineered barrier), and the re...

The adsorption of copper ions on bentonite clay was studied as a function the pH medium, contact time, and temperature. A comparative study applicability Langmuir Freindlich models for description experimental isotherms Cu2+ carried out. constants parameters equations describing equilibrium were determined. correlation coefficients (R2) indicate that both satisfactorily outline sorption process...

Due to rapid industrialization, urbanization, and surge in modern human activities, water contamination is a major threat humanity globally. Contaminants ranging from organic compounds, dyes, inorganic heavy metals have been of concern recent years. This necessitates the development affordable remediation technologies improve quality. There growing interest nanotechnology recently because its a...

Rats were offered ad libitum zinc in twice the level of the standard diet (23 mg/kg diet), and bentonite (2% additive) for 28 d, together with traces of zinc chloride (labelled with zinc-65) given intragastrically. Results provided evidence that bentonite increased the body retention of zinc in comparison to the diet without this agent. Furthermore, the addition of bentonite did not influence f...