Factors affecting the adsorption of chromium (VI) on activated carbon

Journal Article · Fri Sep 15 00:00:00 EDT 2006 · Journal of Environmental Science and Health, Part A: Toxic Hazardous Substances and Environmental Engineering

DOI:https://doi.org/10.1080/10934520600779265· OSTI ID:20781599

Yavuz, R; Orbak, I; Karatepe, N ^[1]

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1. Istanbul Technical University, Istanbul (Turkey)

The aim of this investigation was to determine the adsorption behavior of chromium (VI) on two different activated carbon samples produced from Tuncbilek lignite. The effects of the initial chromium (VI) concentration (250-1000 mg/L), temperature (297-323 K) and pH (2.0-9.5) on adsorption were investigated systematically. The effectiveness of the parameters on chromium adsorption was found to be in the order of pH, the initial Cr(VI) concentration and the temperature. Increasing the pH from 2.0 to 9.5 caused a decrease in adsorption. However, the adsorption was increased by increasing the initial Cr(VI) concentration and temperature. The multilinear mathematical model was also developed to predict the Cr(VI) adsorption on activated carbon samples within the experimental conditions.

• OSTI ID: 20781599
• Journal Information: Journal of Environmental Science and Health, Part A: Toxic Hazardous Substances and Environmental Engineering, Vol. 41, Issue 9; ISSN 1093-4529
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ACTIVATED CARBON
LIGNITE
CHROMIUM IONS
ADSORPTION
PH VALUE
SORPTIVE PROPERTIES
TEMPERATURE DEPENDENCE
MATHEMATICAL MODELS
WATER TREATMENT