{"?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-5R205NRJ/33239574-6775-48a1-857d-5022dddd0de7/PDF","dcterms:extent":"962 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-5R205NRJ/93c452ae-9bd1-462e-9de2-510d088da077/TEXT","dcterms:extent":"70 KB"}],"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-5R205NRJ","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-WP8SPN4L"},{"@xml:lang":"sl","#text":"Acta hydrotechnica"}],"dcterms:issued":"2025","dc:creator":["Bhuvaneswari, P.","Mahalakshmi, M.","Pauline, S.","Prakash, R.","Ramalingam, Vijayalakshmi"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:38"},{"@xml:lang":"sl","#text":"številka:69"},{"@xml:lang":"sl","#text":"str. 127-146"}],"dc:identifier":["ISSN:0352-3551","DOI:10.15292/acta.hydro.2025.09","COBISSID_HOST:291218179","URN:URN:NBN:SI:doc-5R205NRJ"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Fakulteta za gradbeništvo in geodezijo"},"dc:subject":[{"@xml:lang":"en","#text":"coagulant"},{"@xml:lang":"en","#text":"cod reduction"},{"@xml:lang":"en","#text":"fouling"},{"@xml:lang":"sl","#text":"koagulant"},{"@xml:lang":"sl","#text":"mašenje"},{"@xml:lang":"sl","#text":"MBR"},{"@xml:lang":"en","#text":"neem leaf powder"},{"@xml:lang":"sl","#text":"prah listov neema"},{"@xml:lang":"en","#text":"sludge settleability"},{"@xml:lang":"en","#text":"specific oxygen uptake rate"},{"@xml:lang":"sl","#text":"specifična hitrost privzema kisika"},{"@xml:lang":"en","#text":"transmembrane pressure"},{"@xml:lang":"sl","#text":"transmembranski tlak"},{"@xml:lang":"sl","#text":"usedanje blata"},{"@xml:lang":"sl","#text":"zmanjšanje KPK"}],"dc:title":{"@xml:lang":"sl","#text":"Influence of neem leaf powder as a natural coagulant in MBR employed to treat dairy wastewater| Vpliv prahu iz listov neema kot naravnega koagulanta v MBR, uporabljenem za čiščenje odpadne vode iz mlekarn|"},"dc:description":[{"@xml:lang":"sl","#text":"This study pretreats dairy wastewater prior to MBR processing using neem leaf powder as a natural coagulant. Scanning Electron Microscopy, X-ray Diffraction, Fourier Transform Infrared Spectroscopy, and EnergyDispersive X-ray Analysis revealed that neem powder has a high surface area, an amorphous-crystalline structure, and coagulation-promoting functional groups and elements. Jar tests optimized coagulant dosage, pH, mixing time, and settling duration. Under ideal conditions, turbidity and COD decreased significantly. Both MBR systems, with and without neem pretreatment, were tested for COD reduction efficiency, transmembrane pressure, permeate flux, specific oxygen uptake rate, and sludge settleability. In the experimental MBR reactors, neem-based pretreatment substantially enhanced COD removal efficiency, peaking at ~99% at a 6-hour hydraulic retention time (HRT), compared to ~90% without pretreatment. The neem-integrated system showed reduced TMP accumulation (17.9 kPa vs. 27.6 kPa), increased flux retention (22.7 vs. 12.9 liters per square meter per hour), and enhanced microbial activity, as measured by Mixed Liquid Volatile Suspended Solids (MLVSS) (23.5 mg O2/g MLVSS/h). These results indicate that neem powder may enhance biodegradability and reduce membrane fouling, making dairy wastewater management more sustainable"},{"@xml:lang":"sl","#text":"V tej študiji se je odpadna voda iz mlekarne pred čiščenjem z membranskim bioreaktorjem (MBR) predhodno obdelala z uporabo prahu iz listov neema kot naravnega koagulanta. Analize z vrstično elektronsko mikroskopijo (SEM), rentgensko difrakcijo (XRD), Fourierjevo transformacijsko infrardečo spektroskopijo (FTIR) in energijsko disperzijsko rentgensko analizo (EDAX) so pokazale, da ima prah neema veliko površino, amorfno-kristalno strukturo ter funkcionalne skupine in elemente, ki spodbujajo koagulacijo. Testi v kozarcih so optimizirali odmerek koagulanta, pH, čas mešanja in trajanje usedanja. V idealnih pogojih sta se motnost in KPK znatno zmanjšala. Oba sistema MBR, s predhodno obdelavo z neemom in brez nje, sta bila testirana glede učinkovitosti zmanjšanja KPK, transmembranskega tlaka (TMP), permeatnega toka, specifične hitrosti privzema kisika (SOUR) in usedanja blata (SVI). V eksperimentalnih reaktorjih MBR je predhodna obdelava na osnovi neema bistveno povečala učinkovitost odstranjevanja KPK, ki je dosegla vrh pri ~99 % pri 6-urnem hidravličnem zadrževalnem času (HRT) v primerjavi s ~90 % brez predhodne obdelave. Sistem, integriran z neemom, je pokazal zmanjšano kopičenje TMP (17,9 kPa v primerjavi z 27,6 kPa), povečano zadrževanje toka (22,7 litra na kvadratni meter na uro (LMH) v primerjavi z 12,9 LMH) in okrepljeno mikrobno aktivnost, merjeno s hlapnimi suspendiranimi snovmi v mešanici aktivnega blata in vode (MLVSS) (23,5 mg O2/g MLVSS/h). Ti rezultati kažejo, da lahko prah neema poveča biorazgradljivost in zmanjša mašenje membran, s čimer postane upravljanje odpadne vode iz mlekarn bolj trajnostno"}],"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-5R205NRJ","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-5R205NRJ"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-5R205NRJ/33239574-6775-48a1-857d-5022dddd0de7/PDF"},"edm:rights":{"@rdf:resource":"http://creativecommons.org/licenses/by-nc-sa/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, Fakulteta za gradbeništvo in geodezijo"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:doc-5R205NRJ/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-5R205NRJ"}}}}