Adsorption of zinc by activated carbons prepared from solvent extracted olive pulp

Galiatsatou, P; Metaxas, M; Kasselouri-Rigopoulou, V

dc.contributor.author	Galiatsatou, P	en
dc.contributor.author	Metaxas, M	en
dc.contributor.author	Kasselouri-Rigopoulou, V	en
dc.date.accessioned	2014-03-01T01:17:25Z
dc.date.available	2014-03-01T01:17:25Z
dc.date.issued	2002	en
dc.identifier.issn	0304-3894	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14525
dc.subject	Activated carbon	en
dc.subject	Adsorption	en
dc.subject	Olive pulp	en
dc.subject	Surface groups	en
dc.subject	Zinc	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Activated carbon	en
dc.subject.other	Adsorbents	en
dc.subject.other	Extraction	en
dc.subject.other	Impurities	en
dc.subject.other	Porosity	en
dc.subject.other	Zinc	en
dc.subject.other	Pollutants	en
dc.subject.other	Hazardous materials	en
dc.subject.other	activated carbon	en
dc.subject.other	ammonium derivative	en
dc.subject.other	sulfuric acid	en
dc.subject.other	zinc	en
dc.subject.other	activated carbon	en
dc.subject.other	adsorption	en
dc.subject.other	liquid-solid separation	en
dc.subject.other	solvent extraction	en
dc.subject.other	vegetable oil	en
dc.subject.other	zinc	en
dc.subject.other	adsorption	en
dc.subject.other	apricot	en
dc.subject.other	aqueous solution	en
dc.subject.other	article	en
dc.subject.other	demineralization	en
dc.subject.other	olive	en
dc.subject.other	oxidation	en
dc.subject.other	peach	en
dc.subject.other	pH	en
dc.subject.other	porosity	en
dc.subject.other	precursor	en
dc.subject.other	solvent extraction	en
dc.subject.other	surface property	en
dc.subject.other	water pollution control	en
dc.subject.other	water treatment	en
dc.subject.other	water vapor	en
dc.subject.other	Adsorption	en
dc.subject.other	Charcoal	en
dc.subject.other	Fruit	en
dc.subject.other	Hydrogen-Ion Concentration	en
dc.subject.other	Refuse Disposal	en
dc.subject.other	Solvents	en
dc.subject.other	Water Pollution	en
dc.subject.other	Water Purification	en
dc.subject.other	Zinc	en
dc.subject.other	Fraxinus	en
dc.subject.other	Prunus armeniaca	en
dc.subject.other	Prunus persica	en
dc.title	Adsorption of zinc by activated carbons prepared from solvent extracted olive pulp	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0304-3894(02)00008-0	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0304-3894(02)00008-0	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	Activated carbons have been prepared by a two-step physical activation with steam at different burn-off levels to study the porosity development and its effect in zinc adsorption from aqueous solutions. The plain material used was the residual from the extraction with solvent of the kernel-oil [solvent extracted olive pulp (SEOP)]. Olive, apricot and peach stone have been also used as different precursors. The products were characterized by N-2 at 77 K adsorption, Hg porosimetry and iodine number determination. The influence of surface complexes and pH has been investigated in an attempt to elucidate the adsorption phenomena. The effect of different treatments [demineralization with H2SO4 and oxidation with (NH4)(2)S2O8] was also evaluated for the adsorption of zinc species. Both basic and acidic carbons, originated from SEOP, show remarkable adsorption ability at solution pH = 7. Their adsorption ability mainly depends on the content and nature of functional surface groups, the ash content of the precursors and the pH of the solution. These activated carbons were proved to be efficient adsorbents for the removal of water pollutants and contaminants. (C) 2002 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hazardous Materials	en
dc.identifier.doi	10.1016/S0304-3894(02)00008-0	en
dc.identifier.isi	ISI:000174593500011	en
dc.identifier.volume	91	en
dc.identifier.issue	1-3	en
dc.identifier.spage	187	en
dc.identifier.epage	203	en