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dc.creatorSekulic, Maja Turk
dc.creatorPap, Sabolc
dc.creatorStojanovic, Zoran
dc.creatorBoskovic, Nikola
dc.creatorRadonic, Jelena
dc.creatorŠolević Knudsen, Tatjana
dc.date.accessioned2019-01-30T18:01:03Z
dc.date.available2019-01-30T18:01:03Z
dc.date.issued2018
dc.identifier.issn0048-9697
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2463
dc.description.abstractThis paper investigates the ability of the phosphoric acid functionalized Prunus armeniaca stones biochar (AsPhA) prepared by thermochemical activation to remove lead (Pb2+), cadmium (Cd2+), nickel (Ni2+), naproxen and chlorophenols from aqueous wastes. The engineered biochar was characterized using the Scanning Electron Microscopy, Energy-dispersive X-ray Spectroscopy, Fourier Transform Infrared Spectroscopy and Brunauer, Emmett and Teller technique. The batch studies were performed by varying the initial pH of the solution (2-9), adsorbent dosage (0.2-10 g L-1), contact time (5-60 min), temperature (22, 32 and 42 degrees C) and initial adsorbate concentration (5-500mg L-1). With the optimal process conditions, the adsorption efficiency was over 95% (100 mg L-1). The results were fitted with three kinetic and three equilibrium theoretical adsorption models. The adsorption process has good correlation with pseudo-second-order reaction kinetics. Adsorption mechanism was found to be controlled by pore, film and particle diffusion, throughout the entire adsorption period. The monolayer adsorption capacities were found to be 179.476, 105.844 and 78.798mg g(-1) for Pb2+, Cd2+ and Ni2+, respectively. Thermodynamic parameters such as Gibbs energy, enthalpy and entropy were also calculated. Additionally, preliminary results indicated a strong affinity of the biochar for selected organic micropollutants: naproxen and chlorophenols. Based on desorption study results, biochar was successfully regenerated in 3 cycles with diluted phosphoric acid produced as a waste stream during washing of the biochar after thermochemical activation. The experimental results were applied in a two-stage completely stirred tank reactor design. Cost estimation of AsPhA production substantiated its cost effectiveness and adsorption costs of selected pollutants were 5 times lower than with the commercial activated carbons. Based on the low-cost and high capacity, engineered biochar can be used as a highly efficient eco-friendly adsorbent for removal of heavy metal and organic micropollutants from wastewaters systems.en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/46007/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176006/RS//
dc.relationTEMPUS project NETREL ("Network for education and training for public environmental laboratories") - 530554-TEMPUS-1-2012-1-SK-TEMPUS-JPHES
dc.relationTEMPUS project NETREL (European Union, Brussels, Belgium)
dc.rightsrestrictedAccess
dc.sourceScience of the Total Environment
dc.subjectEngineered biocharen
dc.subjectGreen technologyen
dc.subjectWastewater treatmenten
dc.subjectHeavy metalen
dc.subjectNaproxenen
dc.subjectChlorophenolen
dc.titleEfficient removal of priority, hazardous priority and emerging pollutants with Prunus armeniaca functionalized biochar from aqueous wastes: Experimental optimization and modelingen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractСекулиц, Маја Турк; Стојановиц, Зоран; Шолевић Кнудсен, Татјана; Радониц, Јелена; Пап, Саболц; Босковиц, Никола;
dc.citation.volume613
dc.citation.spage736
dc.citation.epage750
dc.citation.other613: 736-750
dc.citation.rankaM21
dc.identifier.pmid28938216
dc.identifier.doi10.1016/j.scitotenv.2017.09.082
dc.identifier.rcubConv_3822
dc.identifier.scopus2-s2.0-85029524511
dc.identifier.wos000414160500077
dc.type.versionpublishedVersion


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