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

Yavuz, Reha; ORBAK, Ilkun; KARATEPE, Nilgün

doi:10.1080/10934520600779265

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

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, cilt.41, sa.9, ss.1967-1980, 2006 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 41 Sayı: 9
Basım Tarihi: 2006
Doi Numarası: 10.1080/10934520600779265
Dergi Adı: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.1967-1980
İstanbul Teknik Üniversitesi Adresli: Evet

Özet

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.