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dc.contributor.authorKatsoyiannis, Ioannis A.-
dc.contributor.authorTzollas, Nikolaos M.-
dc.contributor.authorTolkou, Athanasia K.-
dc.contributor.authorMitrakas, Manassis-
dc.contributor.authorErnst, Mathias-
dc.contributor.authorZouboulis, Anastasios I.-
dc.date.accessioned2017-08-29T09:50:14Z-
dc.date.available2017-08-29T09:50:14Z-
dc.date.issued2017-04-12-
dc.identifierdoi: 10.3390/su9040590-
dc.identifier.citationSustainability 9 (2017), 4: 590de
dc.identifier.issn2071-1050de
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1422-
dc.description.abstractIn the present study, several pre-polymerized coagulants of iron and aluminum were tested for their efficiency towards As(V) and As(III) removal from water sources. The results showed that the pre-polymerized coagulants of iron, such as poly-ferric sulfate and poly-ferric silicate chloride, were very efficient for As(V) removal. With regard to As(III) removal, among all examined coagulants, including the conventional ferric chloride, only the poly-ferric sulfate (PFS) was able to reduce As(III) to concentrations below the drinking water regulation limit of 10 μg/L. In contrast, all tested composite coagulants based on aluminum were not capable of removing efficiently both species of arsenic. PFS addition in water containing 4 mM of alkalinity and 25 μg/L of As(V) and As(III) (i.e., total arsenic concentration 50 μg/L) resulted in finished water with less than 5 μg/L arsenic, only by dosing 5 mg Fe-PFS/L at pH 7, whereas, simultaneously, the residual iron concentration was found well below its drinking water regulation limit of 200 μg/L. The use of PFS could provide a viable alternative for As(III) and As(V) removal at household treatment level for application in vulnerable communities, without the need of any additional treatment, such as oxidation of As(III) to As(V).-
dc.description.abstractIn the present study, several pre-polymerized coagulants of iron and aluminum were tested for their efficiency towards As(V) and As(III) removal from water sources. The results showed that the pre-polymerized coagulants of iron, such as poly-ferric sulfate and poly-ferric silicate chloride, were very efficient for As(V) removal. With regard to As(III) removal, among all examined coagulants, including the conventional ferric chloride, only the poly-ferric sulfate (PFS) was able to reduce As(III) to concentrations below the drinking water regulation limit of 10 μg/L. In contrast, all tested composite coagulants based on aluminum were not capable of removing efficiently both species of arsenic. PFS addition in water containing 4 mM of alkalinity and 25 μg/L of As(V) and As(III) (i.e., total arsenic concentration 50 μg/L) resulted in finished water with less than 5 μg/L arsenic, only by dosing 5 mg Fe-PFS/L at pH 7, whereas, simultaneously, the residual iron concentration was found well below its drinking water regulation limit of 200 μg/L. The use of PFS could provide a viable alternative for As(III) and As(V) removal at household treatment level for application in vulnerable communities, without the need of any additional treatment, such as oxidation of As(III) to As(V).en
dc.language.isoende
dc.publisherMultidisciplinary Digital Publishing Institutede
dc.relation.ispartofSustainabilityde
dc.rightsCC BY 4.0de
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.subjectarsenic removalde
dc.subjectcomposite inorganic coagulantsde
dc.subjectpoly-ferric-sulfatede
dc.subjectalkalinityde
dc.subject.ddc620: Ingenieurwissenschaftende
dc.titleUse of novel composite coagulants for arsenic removal from waters : experimental insight for the application of polyferric sulfate (PFS)de
dc.typeArticlede
dc.date.updated2017-08-24T09:55:13Z-
dc.identifier.urnurn:nbn:de:gbv:830-882w02262-
dc.identifier.doi10.15480/882.1419-
dc.type.diniarticle-
dc.subject.ddccode620-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882w02262de
tuhh.gvk.ppn896629376-
tuhh.gvk.ppn896629376-
tuhh.gvk.ppn896629376-
tuhh.oai.showtrue-
dc.identifier.hdl11420/1422-
tuhh.abstract.englishIn the present study, several pre-polymerized coagulants of iron and aluminum were tested for their efficiency towards As(V) and As(III) removal from water sources. The results showed that the pre-polymerized coagulants of iron, such as poly-ferric sulfate and poly-ferric silicate chloride, were very efficient for As(V) removal. With regard to As(III) removal, among all examined coagulants, including the conventional ferric chloride, only the poly-ferric sulfate (PFS) was able to reduce As(III) to concentrations below the drinking water regulation limit of 10 μg/L. In contrast, all tested composite coagulants based on aluminum were not capable of removing efficiently both species of arsenic. PFS addition in water containing 4 mM of alkalinity and 25 μg/L of As(V) and As(III) (i.e., total arsenic concentration 50 μg/L) resulted in finished water with less than 5 μg/L arsenic, only by dosing 5 mg Fe-PFS/L at pH 7, whereas, simultaneously, the residual iron concentration was found well below its drinking water regulation limit of 200 μg/L. The use of PFS could provide a viable alternative for As(III) and As(V) removal at household treatment level for application in vulnerable communities, without the need of any additional treatment, such as oxidation of As(III) to As(V).de
tuhh.relation.ispartofSustainabilityde
tuhh.publisher.doi10.3390/su9040590-
tuhh.publication.instituteWasserressourcen und Wasserversorgung B-11de
tuhh.identifier.doi10.15480/882.1419-
tuhh.type.opus(wissenschaftlicher) Artikelde
tuhh.institute.germanWasserressourcen und Wasserversorgung B-11de
tuhh.gvk.hasppnfalse-
tuhh.hasurnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde
dc.type.driverarticle-
dc.rights.ccbyde
dc.rights.ccversion4.0de
dc.type.casraiJournal Articleen
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