Kinetics and Mechanism for Adsorption of Lead in Aqueous and Industrial Effluent from Pongamia pinnata Tree Bark

Autor:	S. Manjappa, M. Mamatha, E. T. Puttaiah, H. B. Aravinda
Rok vydání:	2012
Předmět:	Langmuir Aqueous solution biology Chemistry Pongamia Kinetics biology.organism_classification Metal Adsorption Wastewater visual_art visual_art.visual_art_medium Freundlich equation Nuclear chemistry
Zdroj:	IOSR Journal of Environmental Science, Toxicology and Food Technology. 2:01-09
ISSN:	2319-2402 2319-2399
DOI:	10.9790/2402-0230109
Popis:	Presence of heavy metals in water bodies due to industrialization has led to serious health problems. In the present study, an adsorbent prepared from the raw bark of the Pongamia pinnata tree was used for the removal of Lead from aqueous and waste water containing heavy metals. The effectiveness of this adsorbent was studied in batch studies for various size fractions of adsorbent at different pH, concentration of metal ion, amount of adsorbent, contact time, agitation and temperature. The pseudo-first-order, pseudo-second-order and Elovich models were applied to test the kinetic experimental data. Pseudo second order model best fitted the adsorption of Lead ions. The Langmuir and Freundlich adsorption isotherm models were applied for the results. The Langmuir isotherms were best fitted by the equilibrium data. The maximum adsorption was found to be 34.36mg/g in waste water at a temperature of 30 0 C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6c868f754ad0df3d85d9505771bd017d https://doi.org/10.9790/2402-0230109 Zobrazit plný text záznamu