DocumentCode :
2168851
Title :
Biosorption of acid red from aqueous solutions onto peanut shell as a low-cost
Author :
Zhang, Qingfang ; Kong, Xiuqin ; Jia, Xiaoning ; Ren, Xianlong
Author_Institution :
Sch. of Pechro & Chemiscal, Lanzhou Univ. of Technol., Lanzhou, China
fYear :
2012
fDate :
19-21 Oct. 2012
Firstpage :
1
Lastpage :
3
Abstract :
Biosorption of Acid Red from aqueous solutions by peanut shell as a low-cost biosorbent was investigated as a function of initial pH, initial biomass concentration. The kinetics and equilibrium of biosorption were examined in detail. Three kinetic models (pseudo-first order, pseudo-second order, and internal diffusion order model) were used to connect data and to determine the kinetic parameters. Two well-known adsorption isotherms were chosen to describe the biosorption equilibrium. The experimental data were analyzed using two two-parameter models (Langmuir and Freundlich). The equilibrium biosorption isotherms showed that peanut shells possess high affinity and sorption capacity for Acid Red, maximum biosorption capacities of 9.8232mg/g. All results showed that peanut shells biomass is an attractive, alternative low-cost biosorbent for removal of heavy Acid Red from aqueous media.
Keywords :
adsorption; agricultural products; dyes; pH; wastewater treatment; Acid Red; Freundlich isotherm; Langmuir isotherm; adsorption isotherm; aqueous solution; biosorption equilibrium; biosorption kinetics; equilibrium biosorption isotherm; initial biomass concentration function; initial pH function; internal diffusion kinetic model; peanut shell; pseudofirst order kinetic model; pseudosecond order kinetic model; wastewater; Biological system modeling; Biomass; Data models; Educational institutions; Electronic mail; Kinetic theory; AcidRed; Biosorption; low-costbiosorbent; peanutshell;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geomatics for Integrated Water Resources Management (GIWRM), 2012 International Symposium on
Conference_Location :
Lanzhou, Gansu
Print_ISBN :
978-1-4673-1283-7
Type :
conf
DOI :
10.1109/GIWRM.2012.6349615
Filename :
6349615
Link To Document :
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