zinc­ (zn) is an essential micro­nutrient needed by plants, animals and humans. bioavailability of zn to plant root is controlled through sorption process in soils. to evaluate the effect of citric acid on zn sorption,­ a batch experiment was conducted with two soil samples (s1, s2), that differed in their clay and calcium carbonate contents. three levels of citric acid (0,­ 0.5, 1 mm) and twel...

The adsorption of Cibacron Brilliant Yellow (CBY) 3-GP dye onto TiO2 Degussa, Fe2O3, and anatase/Diphenylcarbizide in aqueous solution was studied with respect to temperature, contact time, pH. CBY at equilibrium increased as the initial concentration for TiO2/DPC, while it decreased Degussa; however, concentration. best removal efficiency obtained 1 mg amount decreases rising temperature. nega...

Let X be any variety in characteristic zero. V?X an open subset that has toroidal singularities. We show the existence of a canonical desingularization except for V. It is morphism f:Y?X, which does not modify V and transforms into embedding Y, with singularities extending those on Moreover, exceptional divisor simple normal crossings Y. The theorem naturally generalizes Hironaka desingularizat...

Bu çalışmada, tarımsal atık olarak ülkemizde çok miktarda bulunan fasulye kabuğunun metilen mavisi adsorpsiyonunda etkisi incelenmiştir. Adsorbanın yüzey özelliklerinin belirlenmesi amacı ile XRD, SEM ve FTIR analizleri gerçekleştirilmiştir. Adsorpsiyon çalışmaları kapsamında konsantrasyonunun, adsorban miktarının, sıcaklığın temas süresinin çalışılmıştır. izotermini tanımlayabilmek için Langmu...

Abstract The expulsion of iron from water is an essential issue. Exceeding concentrations in water, it become more toxic and cause several troubles for human health environment. biosorption the upcoming mechanism to treat wastewater. Microorganisms perform important function bioremediation This study was conducted investigate removal by dried biomass Aspergillus niger ( A.niger ). A. tested as ...

Background & Aims of the Study: Heavy metals discharge to environment is a worldwide problem growing in scale. When they accumulate in the environment and in food chains, they can profoundly disrupt biological processes. Peganum Harmala Seeds (PHS) was used as a bio-sorbent, using a continuous system for removing Pb2+, Co2+, Ni2+ and Cu2+ ions from aqueous solutions. ...

Abstract Alginate–zinc oxide (Alg–ZnO) biocomposite was synthesized and tested as a chromium ions Cr(VI) adsorbent for environmental applications. Alg–ZnO prepared by the interaction between sodium alginate biopolymer zinc nanoparticles (ZnO–NPs), modified wet chemical method. The solid adsorption characteristics of were characterized Fourier transform infrared spectroscopy (FTIR), X-ray diffra...

Adsorption of carbamate pesticide Methomyl by Co-Beta Zeolite particles prepared wet ion-exchange method from aqueous solutions was studied. The effect zeolite and concentrations, pH value, sintering temperature on removal an solution change methomyl concentration during the adsorption followed using UV-Visible spectrophotometer. Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy...