Biosorption of Rhodamine B onto dried activated sludge: Equilibrium and kinetic modeling

ENVR 119

Chang Han Lee, chlee@cup.ac.kr1, Dae Myung An, daman@pusan.ac.kr2, Jung Ho Suh, josuh512@hanmail.net3, and Kab Hwan Ahn, khahn@cup.ac.kr2. (1) Department of Environmental Engineering, Catholic University of Pusan, 9 Pugok 3-dong, Keumjeong-gu, Busan 609-757, South Korea, (2) Department of Environmental Administration, Catholic University of Pusan, San 9, Bugok 3-dong, Geumjeong-Gu, Busan, South Korea, (3) Department of Environmental & Life Chemistry, Ulsan College, San 29, Mugeo 2 Dong, Nam-Gu, Ulsan 680-749, South Korea
Dyestuff containing wastewaters requires advanced treatment technologies such as adsorption, chemical and photo-oxidation. Dyestuffs have complex chemical structures which are hard to degrade biologically. The uptake or accumulation of chemicals by biomass has been termed as biosorption. The attractions of biosorption are high selectivity and efficiency, cost effectiveness and good removal performance. The aim of this work is to research the utilization of waste-activated sludge from a sewage treatment plant before anaerobic digestion and to help solve dye waste problems through low cost treatment. The biosorption of dye, Rhodamine B, onto waste-activated sludge was investigated. These experimental data could be fitted by a pseudo-second-order rate equation more than a pseudo-first-order rate equation. The equilibrium dependence between biosorption capacity and initial concentration of Rhodamine B. The equilibrium data of biosorption were fitted by four kinds of models such as Langmuir, Freundlich, Redlich-Peterson and Koble-Corrigan model.
 

General Papers
6:00 PM-8:00 PM, Wednesday, August 22, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Environmental Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007