Background & Aims of the Study: Toluene-2, 4-diamine (TDA) is a famous carcinogenic aromatic amine that is mostly employed as an intermediate in the production of dyes and toluene diisocyanate. In this study, degradation and mineralization of TDA were investigated by UV/H2O2 process. Materials & Methods: This study is an experimental investigation on a laboratory scale. T...

Husk of tur dal (Cajanus cajan) was investigated as a new biosorbent for the removal of Fe (III) and Cr (VI) ions from aqueous solutions. Parameters like agitation time, adsorbent dosage and pH were studied at different initial Fe (III) and Cr (VI) concentrations. The biosorptive capacity of the Tur dal husk was dependent on the pH of the chromium and iron solution, with pH 2 and 2.5 respective...

Retention of heavy metal ions on soil mineral surfaces is a crucial process for maintaining environmental quality. A thorough understanding of the sorption mechanisms of heavy metals on soil mineral surfaces is therefore of fundamental importance. This study examined Ni(Il) sorption mechanisms on pyrophyllite. The removal of Ni from solution was studied as a function of pH (pH = 5-8.5), initial...

background: this study aimed to investigate the biosorption of pentachlorophenol on aspergillus niger biomass as a method for removal of pentachlorophenol from aqueous solutions. methods: modified a. niger biomass with naoh was used to absorb the pentachlorophenol. the impacts of various experimental parameters like primary pentachlorophenol concentration, ph of the solution, contact time, and ...