Chromium (Cr) in water bodies is considered as a major environmental issue around the world. In present study, aqueous Cr(VI) adsorption onto rice husk was studied function of various parameters. Equilibrium time achieved 2 h and maximum 78.6% at pH 5.2 120 mg L−1 initial concentration. isotherm experiments, sorption observed 379.63 g−1. Among four models, Dubinin–Radushkevich Langmuir models s...

Interactions between polyphenols and dietary fiber might play an important role in <br /> polyphenol bioactivities. These interactions can be studied through adsorption processes. The aim of this study was to investigate the phenolic acids (p-coumaric acid, caffeic chlorogenic acid) onto – β-glucan. Adsorption carried out at different temperatures (25, 37, 45 °C) pH values (1.5, 5.5, 10)....

The objective of this study was to assess the adsorption potential of activated carbon (AC) asan adsorbent for the removal of Murexide (Mu) from aqueous solutions. The influence of variablesparameters including pH, amount of adsorbent, sieve size of adsorbent, temperature and contact timeon Mu removal was studied. Following optimization of variables, the relation between concentrations ofdye re...

This work studied the H2S removal from biogas, a CO2-containing gas mixture, over nitrogen-doped carbon materials deriving carbonization of ZIF-8. The sorption performance on series N-doped porous was investigated, in which N-doping composition and textural properties adsorbents were turned by varying temperatures. By changing temperatures 750 to 950 ℃, N contents vary range 17.75−5.46 wt.%, BE...

Abstract The adsorption performance of pyridine onto polyaluminium chloride (PAC) and anionic polyacrylamide (APAM) water treatment residuals (WTRs) was investigated by batch experiments. This study confirmed the assumption that PAC–APAM WTRs had ability to remove pyridine. non-linear Dubinin–Radushkevich model Freundlich better described isotherms, indicating a chemically controlled multilayer...

Liquid wastewater is essentially the water disposal of community after pure has been used in a variety applications. In recent years, heavy metal concentrations, besides other pollutants, have increased to reach dangerous levels for living environment many regions. Among metals lead most damaging effects on human health. It can enter body through uptake food (65%), (20%) and air (15%). With thi...

Sorbent got from leaves and barks of Annona squamosa has been investigated for its sorption capacity towards Methyl Red (MR) utilizing artificially arranged recreated squander waters. Different components influencing adsorption, viz., initial color concentration, contact time, adsorbent dosage, along with the impact temperature were assessed. The equilibrium adsorption was demonstrated by Freun...

Magnetic polyvinyl alcohol adsorbent M-PVAL was employed to remove and concentrate dimethyl phthalate DMP. The M-PVAL was prepared after sequential syntheses of magnetic Fe3O4 (M) and polyvinyl acetate (M-PVAC). The saturated magnetizations of M, M-PVAC, and M-PVAL are 57.2, 26.0, and 43.2 emu g(-1) with superparamagnetism, respectively. The average size of M-PVAL by number is 0.75 μm in micro ...

The biosorption performance of raw cone shell of Calabrian pine for C.I. Basic Red 46 as a model azo dye from aqueous system was optimized using Taguchi experimental design methodology. L9 (3(3)) orthogonal array was used to optimize the dye biosorption by the pine cone shell. The selected factors and their levels were biosorbent particle size, dye concentration, and contact time. The predicted...

Fuller’s earth is a fine-grained, naturally occurring substance that has a substantial ability to adsorb impurities. In the present study Fuller’s earth has been characterized and used for the removal of Pb(II) from aqueous solution. The effect of various physicochemical parameters such as pH, adsorbent dosage and shaking time on adsorption were studied. The result of the equilibrium studies sh...