Sorption

The fate and transport of toxic metal ions and radionuclides in the environment are generally controlled by sorption reactions. The extent of sorption of divalent metal cations is controlled by a number of factors including the presence of other cosorbing or complexing ions. In this work, the effect

Plasticized cellulose triacetate membranes with dinonylnaphthalenesulfonic acid (DNNS) as the ion carrier containing 2-nitrophenyl pentyl ether as the plasticizer were synthesized for competitive transport and sorption of Cs-137, Sr-90, and Co-60 radioisotopes from aqueous solutions of sodium nitrat

The effect of pH, biosolid dosage, initial copper concentration, and contact time on copper removal from aqueous solutions using biosolids (waste sludge cake) was investigated through batch experiments. The copper removal increased by time and initial metal concentrations. The equilibrium time was a

The sorption of Cs+, Co2+ and Eu3+ ions onto polyacylamide cerium titanate (EGIB) sorbent has been investigated at different reaction temperatures(30, 40, 50 and 60EC 1±EC). The sorption kinetics of these ions onto EGIB sorbent follows the pseudo-first-order rate equation. The sorption capacity was

This study establishes a mathematical model that describes the vapor sorption level as a function of its activity in poly(dimethyl siloxane) (PDMS) membrane in multi-component systems. The investigated vapors included polar (methanol, water) and non-polar (m-xylene, toluene, and isopentane) permeant

Heavy metals, such as, cadmium, lead, nickel and zinc can be removed from water using sorbents. The rate and extent of removal may be enhanced by choice of appropriate sorbents. In this study heavy metal sorption was studied on indigenously synthesized carbon nanomaterials (CNMs). Two CNMs differing

Sodium alginate extracted from the brown algae Laminaria digitata was used to prepare metal sorbing beads. Their metal binding properties were investigated with respect to copper and cadmium ions in single and binary metal solutions. Their behaviour in batch kinetic experiments and in a flow through

In this study, a microbial surfactant, rhamnolipid, was investigated for its potential to enhance recovery of Zn(II) from Na-feldspar as soil component. The effects of rhamnolipid concentration, pH, and initial Zn(II) ion concentration on the removal of Zn(II) ions from Na-feldspar by rhamnolipid bi

Activated carbon (AC) is used for the removal of organic compounds from freshwater and saltwater systems. The effect of salinity on the sorption of organic compounds by sorbents with pores such as AC is not yet well understood. Phenanthrene sorption equilibrium and kinetic experiments are performed

Water transport through nanocomposite-based polyamide 12/montmorillonite was investigated by permeation kinetics. Intercalated and semi-exfoliated nanocomposite structures were studied. For low montmorillonite content (£ 5%) a decrease of water permeability was obtained for a both structures and mai