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[{"key": "dc.contributor.advisor", "value": "V\u00e4is\u00e4nen, Ari", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Manninen, Anni", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2019-02-04T08:39:24Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2019-02-04T08:39:24Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2018", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/62687", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4m\u00e4n ty\u00f6n tarkoitus oli kehitt\u00e4\u00e4 s\u00e4hk\u00f6-ja elektroniikkaj\u00e4tteen typpihappoliuotusta ja tutkia metallien talteenottoa silikapohjaisten SiliaMets\u00ae-metallisieppareiden avulla. Ty\u00f6ss\u00e4 testattiin l\u00e4mp\u00f6tilan nostamisen ja vetyperoksidin lis\u00e4\u00e4misen vaikutusta typpihappoliuotuksen tehokkuuteen. Ty\u00f6ss\u00e4 my\u00f6s testattiin\n13 metallisiepparin toiminta 6 M typpihappoliuoksessa, jolla oli k\u00e4sitelty tuhkistettua ja jauhettua piirilevyj\u00e4tett\u00e4. Liuoksen laimentamisen, pH:n nostamisen ja sekoitusajan vaikutusta testattiin metallisieppareiden toiminnan parantamiseksi. Lis\u00e4ksi ty\u00f6ss\u00e4 tarkasteltiin s\u00e4hk\u00f6-ja elekroniikkaromuun liittyvi\u00e4 direktiivej\u00e4,\nmetallien eri talteenottomenetelmi\u00e4 ja n\u00e4iden ymp\u00e4rist\u00f6vaikutuksia. \n\nL\u00e4mp\u00f6tilan kasvattaminen 60 \u00b0C asteeseen kasvatti alumiinin ja sinkin pitoisuuksia uuttoliuoksessa. Palladiumin pitoisuuden havaittiin t\u00e4ll\u00f6in kuitenkin pienenev\u00e4n. Vetyperoksidilis\u00e4yksen ei havaittu merkitt\u00e4v\u00e4sti vaikuttavan metallien liukenemiseen. Typpihappoliuoksen laimentamisen ja pH:n nostamisen\nNaOH-liuoksella huomattiin tehostavan useiden metallisieppareiden sitomiskyky\u00e4. Toisaalta NaOHliuoksen k\u00e4yt\u00f6n my\u00f6t\u00e4 liuoksesta saostui merkitt\u00e4v\u00e4 m\u00e4\u00e4r\u00e4 talteenotettavia metalleja.\n\nTy\u00f6ss\u00e4 havaittiin, ett\u00e4 palladiumia, hopeaa ja tinaa pystyt\u00e4\u00e4n ottamaan talteen yli 90 % saannolla metallisieppareiden avulla suhteellisen selektiivisesti. Jo 15-40 min j\u00e4lkeen sekoituksen aloituksesta saavutettiin maksimisaantoprosentti. Palladiumin talteenottoon soveltuivat parhaiten Si-TAAcONa ja Si-Thiol, hopean Si-DMT ja Si-Thiourea ja tinan talteenottoon Si-AMPA ja Si-TsOH. Nelj\u00e4n ensimm\u00e4isen metallisiepparin m\u00e4\u00e4ritetyt latauskapasiteetit kyseisten metallien suhteen olivat 0,3(Pd), 0,8(Pd), 1,5(Ag) ja 1,0(Ag) mmol/g. Si-AMPA ja Si-TsOH sieppareille ei pystytty m\u00e4\u00e4ritt\u00e4m\u00e4\u00e4n latauskapasiteetteja, sill\u00e4 k\u00e4yt\u00f6ss\u00e4 olevat reagenssit eiv\u00e4t todenn\u00e4k\u00f6isesti soveltuneet latausk\u00e4yrien m\u00e4\u00e4ritt\u00e4miseen.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2019-02-04T08:39:24Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2019-02-04T08:39:24Z (GMT). No. of bitstreams: 0\n Previous issue date: 2018", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "107", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "metallisieppari", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "SiliCycle", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Elektroniikkaj\u00e4tteen k\u00e4sittely typpihapolla ja metallien talteenotto metallisieppareiden avulla", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201902041401", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Kemian laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Chemistry", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ep\u00e4orgaaninen ja analyyttinen kemia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Inorganic and Analytical Chemistry", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4031", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "talteenotto", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "palladium", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "metallit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "typpihappo", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tina", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hopea", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hapot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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