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[{"key": "dc.contributor.advisor", "value": "Salmi, Pauliina", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Talvitie, Julia", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Karjalainen, Anna", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Ryymin, Kalle", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2019-04-03T08:55:13Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2019-04-03T08:55:13Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2019", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/63366", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Mikromuovien (MM), 1 \u00b5m \u2013 5 mm kokoluokan polymeeripartikkelien, esiintyminen ymp\u00e4rist\u00f6ss\u00e4 on her\u00e4tt\u00e4nyt huolta viime vuosina. J\u00e4tevedenpuhdistamot ovat t\u00e4rke\u00e4 mikromuovien kauttakulkureitti ymp\u00e4rist\u00f6\u00f6n. T\u00e4ss\u00e4 ty\u00f6ss\u00e4 tutkittiin Jyv\u00e4skyl\u00e4n Nen\u00e4inniemen j\u00e4tevedenpuhdistamon poistotehoa mikromuovien osalta, erityishuomiona vuonna 2018 valmistuneen uuden terti\u00e4\u00e4rik\u00e4sittelyn, eli 10 \u00b5m huokoiskoon kiekkosuodattimen, vaikutus poistotehoon. Tulevasta j\u00e4tevedest\u00e4, prim\u00e4\u00e4ri-, sekund\u00e4\u00e4ri-, ja terti\u00e4\u00e4rik\u00e4sittelyn j\u00e4lkeisist\u00e4 vesist\u00e4 sek\u00e4 anaerobisesti k\u00e4sitellyst\u00e4 linkokuivatusta lietteest\u00e4 otetuista kertan\u00e4ytteist\u00e4 eristettiin mikromuovit entsymaattisesti. N\u00e4ytteist\u00e4 laskettiin halkaisijaltaan 20 \u00b5m \u2013 5 mm mikromuovien m\u00e4\u00e4r\u00e4 ja niiden kemiallinen koostumus m\u00e4\u00e4ritettiin Raman-mikroskopialla. Tutkimus osoitti, ett\u00e4 Nen\u00e4inniemen j\u00e4tevedenpuhdistamo poisti j\u00e4teveden mikromuoveista 99 %. J\u00e4tevedest\u00e4 poistetut mikromuovit p\u00e4\u00e4tyiv\u00e4t j\u00e4tevesilietteeseen. Yleisimm\u00e4t n\u00e4ytteist\u00e4 eristetyt muovilaadut olivat polyeteeni (PE), polypropeeni (PP) ja polyeteeni tereftalaatti (PET). Prim\u00e4\u00e4rik\u00e4sittelyt poistivat tulevan j\u00e4teveden pitoisuudesta 91 % ja sekund\u00e4\u00e4rik\u00e4sittelyss\u00e4 muovien pitoisuus nelinkertaistui. Kiekkosuodatin poisti sekund\u00e4\u00e4rik\u00e4sitellyst\u00e4 j\u00e4tevedest\u00e4 97 % mikromuoveista.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Concern about the occurrence of microplastics (MPs, polymer particles < 5 mm) in the environment has risen of late. In this study the MP removal capability of Nen\u00e4inniemi wastewater treatment plant (WWTP) was studied as well as the role that a tertiary treatment, a 10 \u00b5m pore size disc filtration installed in 2018, played in the MP removal efficiency. Point samples from wastewater influent, primary, secondary and tertiary effluent and anaerobically treated drained sludge were taken, and MPs were extracted from the samples using an enzymatic purification protocol. MPs 20 \u00b5m \u2013 5 mm in diameter were counted, and their chemical composition analysed using Raman-microscopy. The Nen\u00e4inniemi WWTP was found to remove 99 % of microplastics, and removed microplastics were deposited into drained sludge. The most common polymers encountered were polyethylene (PE), polypropylene (PP) and polyethene terepthalate (PET). Primary treatments removed 91 % of the influent MP concentration. Surprisingly, in secondary treatment, the MP concentration quadrupled. Disc filtration, however, removed 97 % of the microplastics remaining after secondary treatment.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2019-04-03T08:55:13Z\r\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2019-04-03T08:55:13Z (GMT). No. of bitstreams: 0\r\n Previous issue date: 2019", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "39", "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": "mikromuovi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "raman-mikroskopia", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kiekkosuodatus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Mikromuovien prosessikohtalo Nen\u00e4inniemen j\u00e4tevedenpuhdistamolla", "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-201904032054", "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": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "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": "Ymp\u00e4rist\u00f6tiede ja -teknologia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Environmental science and technology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.collaborator", "value": "business", "language": "", "element": "contractresearch", "qualifier": "collaborator", "schema": "yvv"}, {"key": "yvv.contractresearch.funding", "value": "27280 \u20ac", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "yvv.contractresearch.initiative", "value": "business", "language": "", "element": "contractresearch", "qualifier": "initiative", "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": "4015", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "muovi", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "mikroroskat", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "j\u00e4tevedenpuhdistamot", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "j\u00e4tevesi", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "liete", "language": "", "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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