The sorption of sulfamethazine on soil samples: Isotherms and error analysis

Mutavdžić Pavlović, Dragana and Ćurković, Lidija and Blažek, Dijana and Župan, Josip (2014) The sorption of sulfamethazine on soil samples: Isotherms and error analysis. = The sorption of sulfamethazine on soil samples: Isotherms and error analysis. Science of the total environment, 497. pp. 543-552. ISSN 0048-9697. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2013). Točan broj autora: 4.

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In this paper, batch sorption of sulfamethazine on eight soil samples (six from Croatia and two from Bosnia and Hercegovina) with different organic matter contents ranging from 1.52 to 12.8% was investigated. The effects of various parameters such as agitation time, initial concentration, and ionic strength on the sulfamethazine sorption were studied. The experimental data were analysed using a one-parameter model, Linear isotherm, and two two-parameter models, the Freundlich and Dubinin-Radushkevich isotherms. The goodness of fit was measured using the linear regression and the determination coefficient (R2) value. Also, the equilibrium data of the two-parameter models were analysed using the residual root mean square error (RMSE), the sum of squares of errors (ERRSQ), and a composite fractional error function (HYBRID).Non-linear regression has better characteristics for analysing experimental data. The obtained sorption coefficients Kd (from 0.25 to 8.10mL/g) and the Freundlich sorption coefficients KF (from 1.16 to 7.99 (μg/g)(mL/μg)1/n) exhibited quite low values, which indicated that sulfamethazine is weakly adsorbed on the evaluated soils, is highly mobile, and has a great potential to penetrate and pollute the ground water. The Dubinin-Radushkevich isotherm was used to estimate the apparent free energy of sorption. © 2014 .

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Models; Soils; Sorption; Soil sample; Sulfamethazine; Isotherms; sulfadimidine; concentration (composition); error analysis; isotherm; linear programing; numerical model; organic matter; parameterization; regression analysis; soil analysis; soil strength; sorption; adsorption; Article; concentration (parameters); energy; error; ionic strength; isotherm; linear regression analysis; nonlinear regression analysis; pollution transport; soil; soil analysis; water pollution
Subjects: NATURAL SCIENCES > Chemistry
TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Citations JCR: 1 (20.5.2015.)
Quartiles: Q1 (2013)
Citations SCOPUS: 1 (20.5.2015.)
Date Deposited: 20 May 2015 09:25
Last Modified: 20 May 2015 09:25

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