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The effect of activated carbon properties on the adsorption of toxic substances

Diamantopoulos Evaggelos, Samaras Peter, Sakellaropoulos Georgios P.

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URIhttp://purl.tuc.gr/dl/dias/71013840-D5D8-48C9-8EE1-C57DE71AC41A-
Identifierhttp://wst.iwaponline.com/content/25/1/153-
Languageen-
Extent8 pagesen
TitleThe effect of activated carbon properties on the adsorption of toxic substancesen
CreatorDiamantopoulos Evaggelosen
CreatorΔιαμαντοπουλος Ευαγγελοςel
CreatorSamaras Peteren
CreatorSakellaropoulos Georgios P.en
PublisherIWA Publishingen
Content SummaryThe objectives of this work were to relate the activated carbon properties to its adsorptive capacity. The activated carbon needed was produced in the lab from Greek lignite coal. Subsequently, adsorption studies were performed in order to evaluate the efficiency of the various activated carbons to remove toxic substances from water. Two organic substances were used. These were phenol and fulvic acid. Additionally, the adsorption of arsenic (V) was, also, investigated. It was found that the adsorptive capacity of the activated carbons depended primarily on the ash content and the compound. The capacity of the carbon to remove phenol, expressed as mg of phenol removed per g of activated carbon (carbon loading), decreased linearly as the amount of ash in the activated carbon increased. Ash-free activated carbons could adsorb 4 times as much phenol as the activated carbons with a high ash content. On the other hand, fulvic acid and arsenic adsorbed poorly on the ash-free activated carbons. Even for the high surface area activated carbons (over 1000 m2/g), the quantity of fulvic acid or arsenic adsorbed was significantly less than that exhibited by the high ash activated carbons (maximum surface area measured hardly exceeded 300 m2/g). As the amount of ash in the carbon increased, the carbon loading increased as well, up to a certain level, beyond which the amount of ash played no significant role. The beneficial role of ash was explained by the ability of the fulvic acid and arsenic to interact with metal oxides and metal ions, which constitute a significant fraction of the ash.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-11-18-
Date of Publication1992-
SubjectAquatic pollutionen
SubjectFresh water--Pollutionen
SubjectFresh water pollutionen
SubjectFreshwater pollutionen
SubjectInland water pollutionen
SubjectLake pollutionen
SubjectLakes--Pollutionen
SubjectReservoirs--Pollutionen
SubjectRiver pollutionen
SubjectRivers--Pollutionen
SubjectStream pollutionen
SubjectWater contaminationen
SubjectWater pollutantsen
SubjectWater pollutionen
Subjectwater pollutionen
Subjectaquatic pollutionen
Subjectfresh water pollutionen
Subjectfreshwater pollutionen
Subjectinland water pollutionen
Subjectlake pollutionen
Subjectlakes pollutionen
Subjectreservoirs pollutionen
Subjectriver pollutionen
Subjectrivers pollutionen
Subjectstream pollutionen
Subjectwater contaminationen
Subjectwater pollutantsen
Bibliographic CitationE. Diamadopoulos, P. Samaras and G. P. Sakellaropoulos, "The effect of activated carbon properties on the adsorption of toxic substances," Water Sci. Technol., vol. 25, no. 1, pp. 153-160, 1992. en

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