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dc.creatorLu, Chao
dc.creatorYao, Jun
dc.creatorŠolević Knudsen, Tatjana
dc.creatorAmde, Meseret
dc.creatorGu, Jihai
dc.creatorLiu, Jianli
dc.creatorLi, Hao
dc.creatorZhang, Junyang
dc.date.accessioned2019-10-18T08:42:20Z
dc.date.available2021-08-07
dc.date.issued2019
dc.identifier.issn0959-6526
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/3152
dc.description.abstractFlotation reagents, especially new chelating agents represented by α-nitroso-β-naphthol, are the main components of cobalt mining drainage. This study reports the degradation of α-nitroso-β-naphthol by simulated UVA-B (280–400 nm) activated systems using three common oxidants, hydrogen peroxide, sodium persulfate and potassium monopersulfate at a laboratory scale using a photoreactor. Parameters which can affect the degradation process were investigated and comparison of the degradation performance of the three systems were made. Based on the results, UVA-B/sodium persulfate system exhibited best performance towards the removal of α-nitroso-β-naphthol with a lower cost of oxidant and energy consumption compared to the others. The removal efficiency was found to increase as the oxidant dosage and the UVA-B power increases. Only potassium monopersulfate could be activated by bicarbonate and chloride ions, and SO4 2− has insignificant effect on the removal efficiency of α-nitroso-β-naphthol for all systems while NO3 − inhibited the degradation of α-nitroso-β-naphthol. In the UVA-B/hydrogen peroxide system, the hydroxyl radical had a leading role in the degradation of α-nitroso-β-naphthol, while in the other two systems, the degradation of α-nitroso-β-naphthol was mainly caused by the hydroxyl and sulphate radicals. Ten major intermediates from α-nitroso-β-naphthol degradation in the three oxidation systems were identified by gas chromatography and mass spectrometry. In summary, this report could be a great input in developing UVA-B activated oxidants-based treatment technologies. The UVA-B/sodium persulfate system is strongly recommended for its consideration in the treatment of mine impacted wastewaters. UVA-B/SPS is the most efficient, economical and energy-saving technique for the degradation of αNβN compared to UVA-B/HP and UVA-B/PMS systems.sr
dc.language.isoensr
dc.publisherElseviersr
dc.relationGrants from the National Natural Science Foundation of China (41430106, 41720104007, 41573080, 41711530030, 41711530150)sr
dc.relationProject of the Ministry of Science and Technology of China (S2016G2135)sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176006/RS//sr
dc.rightsembargoedAccesssr
dc.sourceJournal of Cleaner Productionsr
dc.subjectα-Nitroso-β-naphtholsr
dc.subjectUVA-B activated oxidantsr
dc.subjectAdvanced oxidation processessr
dc.subjectKineticssr
dc.subjectIntermediate productssr
dc.titleDegradation of α-nitroso-β-naphthol by UVA-B activated peroxide, persulfate and monopersulfate oxidants in watersr
dc.typearticlesr
dc.rights.licenseARRsr
dcterms.abstractЛи, Хао; Зханг, Јунyанг; Лиу, Јианли; Гу, Јихаи; Шолевић Кнудсен, Татјана; Yао, Јун; Лу, Цхао; Aмде, Месерет;
dc.rights.holderElseviersr
dc.citation.volume238
dc.citation.spage117942
dc.citation.rankaM21~
dc.description.otherThis is the peer-reviewed version of the article: Lu C, Yao J, Knudsen TatjanaŠć, Amde M, Gu J, Liu J, Li H, Zhang J, Degradation of α-nitroso-β-naphthol by UVA-B activated peroxide, persulfate and monopersulfate oxidants in water, Journal of Cleaner Production (2019), doi: [https://doi.org/10.1016/ j.jclepro.2019.117942]
dc.description.otherPublished version: [http://cer.ihtm.bg.ac.rs/handle/123456789/3061]
dc.identifier.doi10.1016/j.jclepro.2019.117942
dc.identifier.scopus2-s2.0-85070561036
dc.identifier.wos000487231200031
dc.type.versionacceptedVersionsr


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