<?xml version="1.0"?><rdf: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</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-VV83GW1D/8e37fbe1-aa98-4bb3-9991-2ee871ad99ea/TEXT"><dcterms:extent>61 KB</dcterms:extent></edm:WebResource><edm:TimeSpan rdf:about="2004-2025"><edm:begin xml:lang="en">2004</edm:begin><edm:end xml:lang="en">2025</edm:end></edm:TimeSpan><edm:ProvidedCHO rdf:about="URN:NBN:SI:DOC-VV83GW1D"><dcterms:isPartOf rdf:resource="https://www.dlib.si/details/urn:nbn:si:spr-1fyqipbt" /><dcterms:issued>2022</dcterms:issued><dc:creator>Kaurin, Anela</dc:creator><dc:creator>Leštan, Domen</dc:creator><dc:creator>Morales Arteaga, Juan Francisco</dc:creator><dc:format xml:lang="sl">letnik:118</dc:format><dc:format xml:lang="sl">14 str.</dc:format><dc:format xml:lang="sl">številka:4</dc:format><dc:identifier>DOI:10.14720/aas.2022.118.4.2705</dc:identifier><dc:identifier>COBISSID_HOST:136861443</dc:identifier><dc:identifier>ISSN:1854-1941</dc:identifier><dc:identifier>URN:URN:NBN:SI:doc-VV83GW1D</dc:identifier><dc:language>sl</dc:language><dc:publisher xml:lang="sl">Založba Univerze v Ljubljani</dc:publisher><dcterms:isPartOf xml:lang="sl">Acta agriculturae Slovenica</dcterms:isPartOf><dc:subject xml:lang="en">aerobic biological treatment</dc:subject><dc:subject xml:lang="sl">aerobna biološka obdelava</dc:subject><dc:subject xml:lang="en">anaerobic biological treatment</dc:subject><dc:subject xml:lang="sl">anaerobna biološka obdelava</dc:subject><dc:subject xml:lang="sl">čistilne naprave</dc:subject><dc:subject xml:lang="en">EDTA</dc:subject><dc:subject xml:lang="sl">odpadno blato</dc:subject><dc:subject xml:lang="sl">potencialno strupene kovine</dc:subject><dc:subject xml:lang="sl">remediacija</dc:subject><dc:subject xml:lang="en">remediation</dc:subject><dc:subject xml:lang="en">sewage sludge</dc:subject><dc:subject xml:lang="en">toxic metals</dc:subject><dc:subject xml:lang="en">wastewater treatment plants</dc:subject><dcterms:temporal rdf:resource="2004-2025" /><dc:title xml:lang="sl">Odstranjevanje potencialno strupenih kovin iz odpadnega blata iz čistilne naprave z uporabo EDTA|</dc:title><dc:description xml:lang="sl">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</dc:description><dc:description xml:lang="sl">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</dc:description><edm:type>TEXT</edm:type><dc:type xml:lang="sl">znanstveno časopisje</dc:type><dc:type xml:lang="en">journals</dc:type><dc:type rdf:resource="http://www.wikidata.org/entity/Q361785" /></edm:ProvidedCHO><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:provider><edm:intermediateProvider xml:lang="en">National and University Library of Slovenia</edm:intermediateProvider><edm:dataProvider xml:lang="sl">Univerza v Ljubljani, Biotehniška fakulteta</edm:dataProvider><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" /></ore:Aggregation></rdf:RDF>