Recovery of Silver from Waste Radiographic Films by Chemical Leaching

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dc.authorid0000-0003-4438-3982
dc.authorid0000-0003-2330-3074
dc.contributor.authorArslan, Volkan
dc.contributor.authorUcurum, Metin
dc.contributor.authorVapur, Huseyin
dc.contributor.authorBayat, Oktay
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2011
dc.departmentNiğde ÖHÜ
dc.description.abstractThe major sources to recover silver are photo-processing solutions, spent rinse water, scrap film and scrap printing paper. As much as 80 % of the total silver processed for black and white positives and almost 100 % of the silver processed in colour work will end up in the fixer solution. The waste radiographic films used in the experiments were taken from Cukurova University, Balcali Hospital, Adana, Turkey and cut into small pieces. The film pieces (1-9 g) were boiled with 100 mL of various quantities of oxalic acid, nitric acid and sodium hydroxide solutions for about 2.5, 5.0, 7.5 and 10 min at boiling temperature (congruent to 97 degrees C). The aim of the study is to recover silver from waste radiographic films by HNO(3) leaching. To optimize the results of the experimental work, variance analysis was used. The statistical tests (F-tests) showed that nitric acid gave the best results compared with the other agents. Under optimum leaching conditions (radiographic films quantity, 50 g/L; nitric acid concentration, 30 g/L; stirring speed, 180 rpm; leaching time, 15 min) 89 % silver recovery was obtained.
dc.identifier.endpage70
dc.identifier.issn0970-7077
dc.identifier.issue1
dc.identifier.scopus2-s2.0-79951589949
dc.identifier.scopusqualityQ4
dc.identifier.startpage67
dc.identifier.urihttps://hdl.handle.net/11480/4776
dc.identifier.volume23
dc.identifier.wosWOS:000285267300016
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherASIAN JOURNAL OF CHEMISTRY
dc.relation.ispartofASIAN JOURNAL OF CHEMISTRY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectWaste radiographic films
dc.subjectSilver recovery
dc.subjectAcid leaching
dc.subjectVariance analysis
dc.subjectF-Test
dc.titleRecovery of Silver from Waste Radiographic Films by Chemical Leaching
dc.typeArticle

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