Open AccessADSORPTION MODEL OF Mn<sup>2+</sup>, Cd<sup>2+</sup> and Hg<sup>2+</sup> IN THE WATER - SEDIMENT SYSTEMS ALONG CODE RIVER, YOGYAKARTA
Author(s) -
Muzakky Muzakky
Publication year - 2010
Publication title -
indonesian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.273
H-Index - 14
eISSN - 2460-1578
pISSN - 1411-9420
DOI - 10.22146/ijc.21584
Subject(s) - adsorption , chemistry , langmuir , ion , freundlich equation , metal ions in aqueous solution , sediment , metal , manganese , langmuir adsorption model , inorganic chemistry , analytical chemistry (journal) , environmental chemistry , organic chemistry , paleontology , biology
Prediction of adsorption model of Mn2+, Cd2+ and Hg2+ in water-sediment systems along Code River, Yogyakarta has been experimentally investigated. The aim of this investigation is to predict the transfer models based on isotherm adsorption of Mn2+, Cd2+ and Hg2+ metal ions from water into sediment. In addition, this investigation is expected to be able to inform the initial condition of Code River, dynamics, and the fate of Mn2+, Cd2+ and Hg2+ ions from upstream to downstream. Based on the investigation the transfer of Mn2+, and Cd2+ ions into sediment follows Langmuir adsorption model, with the coefficient determination (R2) of 0,9916 and 0,9799, while the value of the adsorption energy are 20,95 kJ/mol and 16,85 kJ/mol. The transfer of Hg2+ ion tend to follow Freundlich adsorption model. From the adsorption energies, it is proven that Mn2+ ion was chemically sorpted into the sediment, while Cd2+ ion will tend to be physically sorpted into the sediment. The binding strength of which ise in the order of Mn2+ > Cd2+ and the adsorption energy of Hg2+ ion could not be determined. Keywords: adsorption model, chemically sorpted, physically sorpted