In this study, Cu nanoparticles were immobilized on the surface of natural bentonite using Thymus vulgaris extract as a reducing and stabilizing agent. The natural bentonite-supported copper nanoparticles (Cu NPs/bentonite) were characterized by FTIR spectroscopy, X-ray diffraction (XRD), X-ray fluorescence (XRF), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spe...

Removal of cesium from synthetic aqueous solution through adsorption on bentonite, under batch equilibrium experimental condition at different values of pH and four temperatures (303, 313, 323, 333 K) was investigated. For this propose the suitability of the Freundlich adsorption model for equilibrium data were investigated. The parameters in the adopted adsorption isotherm models were determin...

The consolidation properties of soil-bentonite (SB) backfills containing 20% the weight sodium-hexametaphosphate-modified calcium bentonite (SHMP-20CaB) and prepared with 0 mM to 1000 chloride (CaCl2) solution were evaluated. results indicated that both stress CaCl2 concentration had significant effects on behaviors SHMP-20CaB backfill. In general, an increase in resulted a decrease void ratio ...

Drilling fluid is the most important lifeline of the drilling operation, that main task is facilitate the cuttings removal of the drilling. There are varieties of drilling fluids such as sodium bentonite based-drilling fluid is called “mud” and drilling foam or surfactant based-drilling fluid is called “soap”. The present work aims are study on the modified drilling mud properties by using the ...

Abstract A common design of a high-level radioactive waste (HLW) disposal system consists the canisters emplaced in tunnels or shafts, with space between heat-emitting and surrounding rock filled bentonite-based material. Understanding behavior this barrier, particular effect prolonged heating on its properties, is important to assess barrier’s long-term performance. The objective present study...

Methylene blue dye (MB dye) is a harmful contaminant for wastewater streams of industries and to human aquatic life. An ecofriendly sugar templating process was used generate porous bentonite/polydimethylsiloxane (PB) magnetite nanoparticles/bentonite/polydimethylsiloxane (PBNP) composite absorbents remove MB in this study. During the infiltration PDMS solution into template vacuum chamber, ben...