dc.creatorPinotti, Adriana Noemi
dc.creatorBevilacqua, Alicia Eva
dc.creatorZaritzky, Noemi Elisabet
dc.date.accessioned2020-09-11T14:17:37Z
dc.date.accessioned2022-10-15T02:41:38Z
dc.date.available2020-09-11T14:17:37Z
dc.date.available2022-10-15T02:41:38Z
dc.date.created2020-09-11T14:17:37Z
dc.date.issued2001-01
dc.identifierPinotti, Adriana Noemi; Bevilacqua, Alicia Eva; Zaritzky, Noemi Elisabet; Comparison of the Performance of Chitosan and a Cationic Polyacrylamide as Flocculants of Emulsion Systems; Springer Heidelberg; Journal Of Surfactants And Detergents; 4; 1; 1-2001; 57-63
dc.identifier1097-3958
dc.identifierhttp://hdl.handle.net/11336/113794
dc.identifier1558-9293
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4336273
dc.description.abstractFood industries contribute significantly to the pollution of water streams. Oil in wasterwaters must be removed to prevent fouling of process equipment, to reduce interference with subsequent water-treatment units, and to comply with water-discharge requirements. Polyelectrolytes are frequently used to coagulate and flocculate colloidal systems. A model system of a sunflower oil/water emulsion was used to analyze the effect of:(i) emulsion droplet sizes, (ii) surfactant chain length (sodium dodecyl sulfate and sodium tetradecyl sulfate), (iii) ionic strength, and (iv) pH, on the doses of chitosan (natural cationic polyelectrolyte) and a cationic polyacrylamide, necessary to neutralize electrical charge and to get flocculation. Methods used were: turbidimetry, jar test, colloidal titration, and light microscopy observation. Results showed that the increase of NaCl concentration reduces the doses of chitosan and polyacrylamide to reach zero colloidal charge; these doses increase with the surfactant chain length. pH variation did not show any influence on the chitosan dose necessary to flocculate the system. Redispersion of the emulsion was observed in chitosan and polyacrylamide treatments.
dc.languageeng
dc.publisherSpringer Heidelberg
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11743-001-0160-x
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://tinyurl.com/y4g6rcd2
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectChitosan
dc.subjectEmulsions
dc.subjectFlocculation
dc.subjectPolyacrylamide
dc.subjectPolyelectrolytes
dc.titleComparison of the Performance of Chitosan and a Cationic Polyacrylamide as Flocculants of Emulsion Systems
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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