Kailash Singh

TL;DR: In this article, the authors compile scattered information on the different adsorbents that are used for heavy metal removal and to provide information on commercially available and natural bio-adsorbents used for removal of chromium, cadmium and copper, in particular.

TL;DR: In this article, several cobalt ion-exchanged zeolite catalysts based on ZSM-5, Co-zeolite-A and Co-ZSM-X were tested for heterogeneous oxidation of phenol in the presence of various oxidants such as H2O2, persulphate, and peroxymonosulphates.

TL;DR: In this article, a comparison between homogeneous and heterogeneous catalytic transesterification of biodiesel was made to make the process techno-economically feasible, where Potassium hydroxide (KOH) was selected as a homogeneous catalyst and KOH loaded on alumina as a heterogeneous catalyst.

TL;DR: In this article, an attempt is made to review various methodologies for heavy metal removal from wastewater with their advantages and disadvantages, and it is evident from the literature survey that adsorption method is widely used over conventional methods, (i.e., chemical precipitation, ion exchange, membrane filtration, coagulation-flocculation and floatation).

TL;DR: The removal of heavy metal ions from wastewater using agricultural waste is based upon metal biosorption. as discussed by the authors compared removal efficiency of different adsorbents and showed that modification in these adsorbants enhance the adsorption capacity.