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Present study was carried out to evaluate the feasibility of conventional rural based defluoridation technique Nalgonda technique, Activated alumina in urban areas. Nalgonda technique is being used extensively due to ease in construction of the reactor, operation & maintenance. This technique is very effective even when the fluoride concentration is above 20 mg/L. However, generation of acid or...

Thallium (I) was removed from aqueous solution by using gamma-alumina nanoparticles (?ANPs) materials as nano adsorbents. Varied experimental conditions such adsorbent dose, agitation time, initial concentration, pH, and temperature effects were carried out in batch view of the optimization thallium adsorption identification mechanisms system ?ANPs-Tl. The pH effect indicated a remarkable incre...

Porous alumina films had been fabricated by anodizing from aluminum films after an electropolishing procedure. Alumina stripes without pores can be distinguished on the surface of the porous alumina films. The width of the alumina stripes increases proportionally with the anodizing voltage. And the pores tend to be initiated close to the alumina stripes. These phenomena can be ascribed to the e...

Industrially relevant, highly dispersed, Pt/ceria and reference Pt/alumina catalysts with narrow Pt particle size distributions have been prepared, characterised ex situ studied for CO oxidation by operando infrared X-ray absorption spectroscopy. At high conversions, spectator ad-species on ionic platinum are observed while the proceeds particles in a state exhibiting significant PtO coordinati...

The mechanism of inclusion removal from liquid steel by gas bubbling and bubble attachment in the tundish is complex due to the great number of variables involved, and it is even more difficult to study because of the turbulent flow conditions. The main objective of this work is to analyze and improve the understanding of the alumina inclusion removal rate by bubble attachment and by gas bubbli...