Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1725
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dc.contributor.authorUsman, Muhammad-
dc.contributor.authorKatsoyiannis, Ioannis A.-
dc.contributor.authorMitrakas, Manassis-
dc.contributor.authorZouboulis, Anastasios I.-
dc.contributor.authorErnst, Mathias-
dc.date.accessioned2018-08-02T09:23:01Z-
dc.date.available2018-08-02T09:23:01Z-
dc.date.issued2018-07-20-
dc.identifier.citationWater 10 (7): 957 (2018)de_DE
dc.identifier.issn2073-4441de_DE
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1728-
dc.description.abstractThe small sized powdered ferric oxy-hydroxide, termed Dust Ferric Hydroxide (DFH), was applied in batch adsorption experiments to remove arsenic species from water. The DFH was characterized in terms of zero point charge, zeta potential, surface charge density, particle size and moisture content. Batch adsorption isotherm experiments indicated that the Freundlich model described the isothermal adsorption behavior of arsenic species notably well. The results indicated that the adsorption capacity of DFH in deionized ultrapure water, applying a residual equilibrium concentration of 10 µg/L at the equilibrium pH value of 7.9 ± 0.1, with a contact time of 24 h (i.e., Q<sub>10</sub>), was 6.9 and 3.5 µg/mg for As(V) and As(III), respectively, whereas the measured adsorption capacity of the conventionally used Granular Ferric Hydroxide (GFH), under similar conditions, was found to be 2.1 and 1.4 µg/mg for As(V) and As(III), respectively. Furthermore, the adsorption of arsenic species onto DFH in a Hamburg tap water matrix, as well as in an NSF challenge water matrix, was found to be significantly lower. The lowest recorded adsorption capacity at the same equilibrium concentration was 3.2 µg As(V)/mg and 1.1 µg As(III)/mg for the NSF water. Batch adsorption kinetics experiments were also conducted to study the impact of a water matrix on the behavior of removal kinetics for As(V) and As(III) species by DFH, and the respective data were best fitted to the second order kinetic model. The outcomes of this study confirm that the small sized iron oxide-based material, being a by-product of the production process of GFH adsorbent, has significant potential to be used for the adsorptive removal of arsenic species from water, especially when this material can be combined with the subsequent application of low-pressure membrane filtration/separation in a hybrid water treatment process.en
dc.language.isoende_DE
dc.publisherMultidisciplinary Digital Publishing Institutede_DE
dc.relation.ispartofWaterde_DE
dc.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.subjectarsenic adsorptionde_DE
dc.subjectsmall sized powdered ferric hydroxidede_DE
dc.subjectgranular ferric hydroxidede_DE
dc.subjectwater matrixde_DE
dc.subjectadsorption kineticsde_DE
dc.subjectdrinking waterde_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titlePerformance evaluation of small sized powdered ferric hydroxide as arsenic adsorbentde_DE
dc.typeArticlede_DE
dc.date.updated2018-07-25T12:40:55Z-
dc.identifier.urnurn:nbn:de:gbv:830-882.05625-
dc.identifier.doi10.15480/882.1725-
dc.type.diniarticle-
dc.subject.ddccode620-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.05625de_DE
tuhh.oai.showtrue-
dc.identifier.hdl11420/1728-
tuhh.abstract.englishThe small sized powdered ferric oxy-hydroxide, termed Dust Ferric Hydroxide (DFH), was applied in batch adsorption experiments to remove arsenic species from water. The DFH was characterized in terms of zero point charge, zeta potential, surface charge density, particle size and moisture content. Batch adsorption isotherm experiments indicated that the Freundlich model described the isothermal adsorption behavior of arsenic species notably well. The results indicated that the adsorption capacity of DFH in deionized ultrapure water, applying a residual equilibrium concentration of 10 µg/L at the equilibrium pH value of 7.9 ± 0.1, with a contact time of 24 h (i.e., Q<sub>10</sub>), was 6.9 and 3.5 µg/mg for As(V) and As(III), respectively, whereas the measured adsorption capacity of the conventionally used Granular Ferric Hydroxide (GFH), under similar conditions, was found to be 2.1 and 1.4 µg/mg for As(V) and As(III), respectively. Furthermore, the adsorption of arsenic species onto DFH in a Hamburg tap water matrix, as well as in an NSF challenge water matrix, was found to be significantly lower. The lowest recorded adsorption capacity at the same equilibrium concentration was 3.2 µg As(V)/mg and 1.1 µg As(III)/mg for the NSF water. Batch adsorption kinetics experiments were also conducted to study the impact of a water matrix on the behavior of removal kinetics for As(V) and As(III) species by DFH, and the respective data were best fitted to the second order kinetic model. The outcomes of this study confirm that the small sized iron oxide-based material, being a by-product of the production process of GFH adsorbent, has significant potential to be used for the adsorptive removal of arsenic species from water, especially when this material can be combined with the subsequent application of low-pressure membrane filtration/separation in a hybrid water treatment process.de_DE
tuhh.publisher.doi10.3390/w10070957-
tuhh.publication.instituteWasserressourcen und Wasserversorgung B-11de_DE
tuhh.identifier.doi10.15480/882.1725-
tuhh.type.opus(wissenschaftlicher) Artikelde
tuhh.institute.germanWasserressourcen und Wasserversorgung B-11de
tuhh.institute.englishWasserressourcen und Wasserversorgung B-11de_DE
tuhh.gvk.hasppnfalse-
tuhh.hasurnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.type.driverarticle-
dc.rights.ccbyde_DE
dc.rights.ccversion4.0de_DE
dc.type.casraiJournal Articleen
tuhh.container.issue7de_DE
tuhh.container.volume10de_DE
tuhh.container.startpage957de_DE
tuhh.container.endpage15 Seitende_DE
dc.rights.nationallicensefalsede_DE
item.fulltextWith Fulltext-
item.creatorOrcidUsman, Muhammad-
item.creatorOrcidKatsoyiannis, Ioannis A.-
item.creatorOrcidMitrakas, Manassis-
item.creatorOrcidZouboulis, Anastasios I.-
item.creatorOrcidErnst, Mathias-
item.creatorGNDUsman, Muhammad-
item.creatorGNDKatsoyiannis, Ioannis A.-
item.creatorGNDMitrakas, Manassis-
item.creatorGNDZouboulis, Anastasios I.-
item.creatorGNDErnst, Mathias-
item.grantfulltextopen-
crisitem.author.deptWasserressourcen und Wasserversorgung B-11-
crisitem.author.orcid0000-0002-8977-7523-
crisitem.author.orcid0000-0001-8465-1174-
crisitem.author.orcid0000-0001-9282-6683-
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