{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-VV83GW1D/a033fd8e-b726-40d2-99ed-b5d100e7fa94/PDF","dcterms:extent":"1021 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-VV83GW1D/8e37fbe1-aa98-4bb3-9991-2ee871ad99ea/TEXT","dcterms:extent":"61 KB"}],"edm:TimeSpan":{"@rdf:about":"2004-2025","edm:begin":{"@xml:lang":"en","#text":"2004"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-VV83GW1D","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-1fyqipbt"},{"@xml:lang":"sl","#text":"Acta agriculturae Slovenica"}],"dcterms:issued":"2022","dc:creator":["Kaurin, Anela","Leštan, Domen","Morales Arteaga, Juan Francisco"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:118"},{"@xml:lang":"sl","#text":"14 str."},{"@xml:lang":"sl","#text":"številka:4"}],"dc:identifier":["DOI:10.14720/aas.2022.118.4.2705","COBISSID_HOST:136861443","ISSN:1854-1941","URN:URN:NBN:SI:doc-VV83GW1D"],"dc:language":"sl","dc:publisher":{"@xml:lang":"sl","#text":"Založba Univerze v Ljubljani"},"dc:subject":[{"@xml:lang":"en","#text":"aerobic biological treatment"},{"@xml:lang":"sl","#text":"aerobna biološka obdelava"},{"@xml:lang":"en","#text":"anaerobic biological treatment"},{"@xml:lang":"sl","#text":"anaerobna biološka obdelava"},{"@xml:lang":"sl","#text":"čistilne naprave"},{"@xml:lang":"en","#text":"EDTA"},{"@xml:lang":"sl","#text":"odpadno blato"},{"@xml:lang":"sl","#text":"potencialno strupene kovine"},{"@xml:lang":"sl","#text":"remediacija"},{"@xml:lang":"en","#text":"remediation"},{"@xml:lang":"en","#text":"sewage sludge"},{"@xml:lang":"en","#text":"toxic metals"},{"@xml:lang":"en","#text":"wastewater treatment plants"}],"dcterms:temporal":{"@rdf:resource":"2004-2025"},"dc:title":{"@xml:lang":"sl","#text":"Odstranjevanje potencialno strupenih kovin iz odpadnega blata iz čistilne naprave z uporabo EDTA|"},"dc:description":[{"@xml:lang":"sl","#text":"Sewage sludge has the potential to be used as a fertilizer in agriculture because of its high nutritional value, but it is often contaminated with toxic metals (TM). This study investigated whether ReSoil® technology, based on the use of EDTA (50, 70, and 100 mmol l$^{-1}$), efficiently removes TM from sewage sludge collected after aerobic (blato1) and anaerobic (blato2) treatment. The highest removal efficiency of Pb was achieved in blato1 (up to 60 %) and of Zn and Cu in blato2 (up to 55 and 29 %, respectively). The content of nutrients did not change significantly after remediation, only available phosphorus decreased up to 1.7-times in blato2, but its content remained high (489-510 mg 100$^{-1}$ g$^{-1}$). After remediation, the concentration of all metals, except Zn, in the leachates was below the limit for non-hazardous substances. To demonstrate the possibility of recycling process solutions and EDTA, blato2 was washed in 5 consecutive batches with 50 mmol l$^{-1}$ washing solution, removing on average 28 % Pb, 48 % Zn, 35 % Cu, 30 % Mn, and 10 % Fe. ReSoil® technology removes metals from sludge and preserves its nutritional value. However, the efficiency of the technology depends on the treatment process used in the wastewater treatment plant"},{"@xml:lang":"sl","#text":"Odpadno blato iz čistilnih naprav (ČN) ima zaradi velike hranilne vrednosti potencial za uporabo v kmetijstvu, vendar je pogosto onesnaženo s potencialno strupenimi kovinami (PSK). V raziskavi smo preverili ali ReSoil® tehnologija, ki temelji na uporabi EDTA (50, 70 in 100 mmol l$^{-1}$ omogoča učinkovito odstranjevanje PSK iz odpadnega blata, vzetega po aerobni (blato1) in anaerobni (blato2) biološki obdelavi. Največji delež odstranitve Pb smo dosegli v blatu1 (do 60 %), največji delež odstranitve Zn in Cu pa v blatu2 (do 55 in 29 %). Vsebnost hranil se po remediaciji ni bistveno spremenila, le vsebnost dostopnega fosforja se je v blatu2 po remediaciji do 1,7-krat zmanjšala, vendar je še vedno ostala velika (489- 510 mg 100$^{-1}$ g$^{-1}$). Po remediaciji so bile koncentracije v izpirkih za vse kovine, razen za Zn, pod mejo za nenevarne snovi. Za dokazovanje možnosti recikliranja procesnih raztopin in EDTA smo blato2 oprali s 50 mmol l$^{-1}$ pralno raztopino v seriji 5 zaporednih remediacij in pri tem v povprečju odstranili 28 % Pb, 48 % Zn, 35 % Cu, 30 % Mn in 10 % Fe. ReSoil® tehnologija sicer omogoča odstranjevanje PSK iz blata in pri tem ohrani njegovo hranilno vrednost, vendar je učinkovitost tehnologije odvisna od postopkov obdelave blata na ČN"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:doc-VV83GW1D","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-VV83GW1D"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-VV83GW1D/a033fd8e-b726-40d2-99ed-b5d100e7fa94/PDF"},"edm:rights":{"@rdf:resource":"http://creativecommons.org/licenses/by/4.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Univerza v Ljubljani, Biotehniška fakulteta"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:doc-VV83GW1D/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-VV83GW1D"}}}}