We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Kinetic Sorption Studies of Heavy Metal Contamination on Indian Expansive Soil.
- Authors
Gupta, M. K.; Singh, A. K.; Srivastava, R. K.
- Abstract
Sorption of metallic cadmium from the pH adjusted aqueous solutions at varying initial concentrations onto an alluvial (clay) soil through batch sorption experiments was studied. The pH of the initial concentrations ranging between 50 mg/L to 250 mg/L was varied from 3.0 to 8.0. The sorption experiments were carried out for different durations and up to 16 hours. The cadmium continued to sorb till the last experimental pH=8. The experimental sorption data fitted very well with both Langmuir and Freundlich isotherm models and Freundlich model gave higher correlation coefficients. The pseudosecond order kinetics model was most agreeable with the experimental sorption data, whereas the pseudo-first order model was found to be insufficient.
- Subjects
HEAVY metal absorption &; adsorption; CHEMICAL kinetics; SOIL absorption &; adsorption; SALTWATER solutions; CONCENTRATION functions; ISOTHERMAL surfaces (Thermodynamics); EXPANSION of solids; CADMIUM; SWELLING soils
- Publication
E-Journal of Chemistry, 2009, Vol 6, Issue 4, p1125
- ISSN
0973-4945
- Publication type
Article
- DOI
10.1155/2009/942419