Title :
Research on Kinetics and Thermodynamic Adsorption Cr(VI) from Wastewater by Sawdust
Author :
Chen Ming ; Zhao Ling ; Zhao Yonghong ; Chen Yunlen ; Nie Jinxia
Author_Institution :
Sch. of Resource & Environ. Eng., Jiangxi Univ. of Sci. & Technol., Ganzhou, China
Abstract :
In the dissertation, the treatment of chromium containing wastewater using sawdust which is a low-cost biosorbent. The influences of physical and chemical parameters such as pH value, reaction time and temperature and the initial concentration of metallic ion on the adsorption process were investigated by batch adsorption. When the pH value 6, reaction temperature 323 K, dosage of sawdust 6 g/L, the adsorption removal of chromium ion in solution achieve the maximum. The results showed that sorption processes followed Langmuir isothermal patterns. The adsorption thermodynamics indicated this adsorption process was spontaneous endothermic reaction. The adsorption kinetics model of Cr(VI) on sawdust accorded with the pseudo second- order kinetics equation better.
Keywords :
adsorption; biochemistry; chromium; pH; reaction kinetics theory; thermodynamics; wastewater treatment; Cr; Langmuir isothermal patterns; adsorption kinetics model; adsorption process; batch adsorption; chemical parameter; chromium ion removal; chromium-containing wastewater; dissertation; low-cost biosorbent; metallic ion concentration; pH value; physical parameter; pseudo second-order kinetics equation; reaction temperature; reaction time; sawdust; sorption processes; spontaneous endothermic reaction; temperature 323 K; thermodynamic adsorption; wastewater treatment; Atomic measurements; Chemical processes; Chemical technology; Chromium; Humans; Kinetic theory; Organisms; Temperature; Thermodynamics; Wastewater;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5518292
