Adsorption for removal of Cd(II) from effluents
- 1 October 1990
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Studies
- Vol. 36 (4) , 315-320
- https://doi.org/10.1080/00207239008710609
Abstract
The adsorption of Cd(II) onto wollastonite has been reported. Adsorption increased from 55.7 to 93.6% by decreasing the concentration of Cd(II) from 2.0 x 10‐4M to 0.5 x 10‐4M. The rearranged Lagergren equation has been used for dynamic modelling of the process. However, the value of rate constant at 30°C was found to be 3.17 x 10‐2min‐1. Equilibrium modelling was carried out using the Freundlich isotherm equation and constants have been calculated. Thermodynamic studies were carried out and values of standard free energy (?G°), enthalpy (?H°) and entropy (AS°) were calculated at various temperatures. Low temperatures favour the uptake of Cd(II) in the process.Keywords
This publication has 8 references indexed in Scilit:
- Inexpensive Adsorption Technique to Remove Cr(VI) from Aqueous SolutionsInternational Journal of Environmental Analytical Chemistry, 1990
- Use of wollastonite in the removal of Ni(II) from aqueous solutionsWater, Air, & Soil Pollution, 1990
- The use ofZoogloea ramigera in waste water treatment containing Cr(VI) and Cd(II) ionsBiotechnology Letters, 1989
- Use of wollastonite for the treatment of Cu(II) rich effluentsWater, Air, & Soil Pollution, 1986
- Removal of Cr(V1) from aqueous solutions by adsorption on fly ash‐wollastoniteJournal of Chemical Technology and Biotechnology. Chemical Technology, 1984
- Removal of Cadmium (II) by Low Cost AdsorbentsJournal of Environmental Engineering, 1984
- Metal Pollution in the Aquatic EnvironmentPublished by Springer Nature ,1979
- Contamination of soil and vegetation near a zinc smelter by zinc, cadmium, copper, and leadEnvironmental Science & Technology, 1973