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dc.contributor.authorRadu, Tamara
dc.date.accessioned2018-05-30T10:45:40Z
dc.date.available2018-05-30T10:45:40Z
dc.date.issued2016
dc.identifier.urihttp://10.11.10.50/xmlui/handle/123456789/5138
dc.descriptionThe Annals of "Dunarea de Jos" University of Galati : Fascicle IX Metallurgy and Materials Science No. 2 - 2016, ISSN 1453 – 083Xro_RO
dc.description.abstractThe technological cleaning processes of steel strip surfaces used in metal coatings require organic or inorganic chemicals with a high risk of toxicity. To avoid pollution, the water resulting from these processes must be neutralized. During the degreasing process, alkaline solutions containing caustic soda (NaOH), tri-sodium phosphate (Na3PO4) and detergents are used and the pickling process is made in 15-20% HCl solution. Rinse waters resulting from these operations will have an alkaline pH respectively acid pH, with values depending on the duration of use or refresh solution. Neutralization was done with sulfuric acid solutions for alkaline water and sodium hydroxide solutions for acid water. The research aimed to establish the optimal conditions for neutralization and the optimal reagent consumptions.ro_RO
dc.language.isoenro_RO
dc.publisherUniversitatea "Dunărea de Jos" din Galațiro_RO
dc.subjectcleaning surfacesro_RO
dc.subjectrinse watersro_RO
dc.subjectalkaline waterro_RO
dc.subjectacid waterro_RO
dc.subjectneutralizationro_RO
dc.titleTreatment of Wastewater Resulting from the Mettallic Coatings Processro_RO
dc.typeArticlero_RO


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