KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL

Adsorption is one of the important techniques in arsenic removal from aqueous solutions. In this study, the As removal efficiency of Leonardite char by a prepared Leonardite carbonized at 450ºC was investigated as a function of solution pH, contact time, kinetic and As(III) or As(V) concentration. T...

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Autores principales:	CHAMMUI,YUTTASAK, SOOKSAMITI,PONLAYUTH, NAKSATA,WIMOL, ARQUEROPANYO,ORN-ANONG
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	Leonardite char Adsorbent Arsenic Langmuir Freundlich Pseudo-second-order
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100028
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spelling	oai:scielo:S0717-970720140001000282015-11-12KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIALCHAMMUI,YUTTASAKSOOKSAMITI,PONLAYUTHNAKSATA,WIMOLARQUEROPANYO,ORN-ANONG Leonardite char Adsorbent Arsenic Langmuir Freundlich Pseudo-second-order Adsorption is one of the important techniques in arsenic removal from aqueous solutions. In this study, the As removal efficiency of Leonardite char by a prepared Leonardite carbonized at 450ºC was investigated as a function of solution pH, contact time, kinetic and As(III) or As(V) concentration. The surface complexation modeling was used to describe As(III) and As(V) adsorption on the minerals which found in Leonardite char. In the batch experiment, 10.0 mg/L As(III) or As(V) pH 7.0 and 50 mL of aqueous solution was as high as 90% adsorbed. The results showed that Leonardite char could be used as effective adsorbent for the removal of arsenic from aqueous solution. This research supports effort to water with arsenic level lower than 10 mg/L. The maximum adsorption capacity was calculated by fitting the Langmuir and Freunchlich equations to the adsorption isotherms. The Leonardite char will be used as a low-cost adsorbent, for arsenic ions removal in water.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100028en10.4067/S0717-97072014000100028
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Leonardite char Adsorbent Arsenic Langmuir Freundlich Pseudo-second-order
spellingShingle	Leonardite char Adsorbent Arsenic Langmuir Freundlich Pseudo-second-order CHAMMUI,YUTTASAK SOOKSAMITI,PONLAYUTH NAKSATA,WIMOL ARQUEROPANYO,ORN-ANONG KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL
description	Adsorption is one of the important techniques in arsenic removal from aqueous solutions. In this study, the As removal efficiency of Leonardite char by a prepared Leonardite carbonized at 450ºC was investigated as a function of solution pH, contact time, kinetic and As(III) or As(V) concentration. The surface complexation modeling was used to describe As(III) and As(V) adsorption on the minerals which found in Leonardite char. In the batch experiment, 10.0 mg/L As(III) or As(V) pH 7.0 and 50 mL of aqueous solution was as high as 90% adsorbed. The results showed that Leonardite char could be used as effective adsorbent for the removal of arsenic from aqueous solution. This research supports effort to water with arsenic level lower than 10 mg/L. The maximum adsorption capacity was calculated by fitting the Langmuir and Freunchlich equations to the adsorption isotherms. The Leonardite char will be used as a low-cost adsorbent, for arsenic ions removal in water.
author	CHAMMUI,YUTTASAK SOOKSAMITI,PONLAYUTH NAKSATA,WIMOL ARQUEROPANYO,ORN-ANONG
author_facet	CHAMMUI,YUTTASAK SOOKSAMITI,PONLAYUTH NAKSATA,WIMOL ARQUEROPANYO,ORN-ANONG
author_sort	CHAMMUI,YUTTASAK
title	KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL
title_short	KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL
title_full	KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL
title_fullStr	KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL
title_full_unstemmed	KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL
title_sort	kinetic and mechanism of arsenic ions removal by adsorption on leonardite char as low cost adsorbent material
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000100028
work_keys_str_mv	AT chammuiyuttasak kineticandmechanismofarsenicionsremovalbyadsorptiononleonarditecharaslowcostadsorbentmaterial AT sooksamitiponlayuth kineticandmechanismofarsenicionsremovalbyadsorptiononleonarditecharaslowcostadsorbentmaterial AT naksatawimol kineticandmechanismofarsenicionsremovalbyadsorptiononleonarditecharaslowcostadsorbentmaterial AT arqueropanyoornanong kineticandmechanismofarsenicionsremovalbyadsorptiononleonarditecharaslowcostadsorbentmaterial
_version_	1718445514443194368

KINETIC AND MECHANISM OF ARSENIC IONS REMOVAL BY ADSORPTION ON LEONARDITE CHAR AS LOW COST ADSORBENT MATERIAL

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