Open AccessAdsorption of Pollutants from Aqueous Solutions Using Activated and Non-Activated Oak Shells: Parametric and Fractional Factorial Design Study. Part I. Removal of Copper
Author(s) -
Sameer AlAsheh,
Fawzi Banat,
Rana Saeidi,
Salam Abu Zaid
Publication year - 2003
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1260/026361703769013907
Subject(s) - sorbent , chemistry , sorption , adsorption , aqueous solution , factorial experiment , activated alumina , fractional factorial design , copper , inorganic chemistry , organic chemistry , statistics , mathematics
Non-activated and chemically activated oak shells were evaluated for their ability to remove Cu 2+ ions from aqueous solutions. Batch adsorption experiments were conducted to investigate the effect of contact time, sorbent concentration, Cu 2+ ion concentration and the pH of the solution on the sorption process. The Cu 2+ ion uptake by oak shells increased with decreasing sorbent concentration or with an increase in Cu 2+ ion concentration or solution pH. The fractional factorial design technique was applied in order to determine the average Cu 2+ ion uptake, the contribution of each operating variable to the value of the uptake and the interaction among the operating variables when the sorbent type, sorbent concentration, Cu 2+ ion concentration, pH, contact time and salt were all varied from one level to another. Application of this technique showed that the sorbent concentration had the largest influence on the value of the Cu 2+ ion uptake followed by Cu 2+ ion concentration and sorbent type. Interaction among the different operating variables played an important role in the adsorption process.