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dc.creatorBeita Sandí, Wilson
dc.creatorKaranfil, Tanju
dc.date.accessioned2018-06-12T21:09:29Z
dc.date.available2018-06-12T21:09:29Z
dc.date.issued2017-11-01
dc.identifier.citationhttps://www.sciencedirect.com/science/article/pii/S0043135417306012?via%3Dihubes_ES
dc.identifier.issn0043-1354
dc.identifier.urihttp://hdl.handle.net/10669/74900
dc.description.abstractDrinking water utilities are relying more than ever on water sources impacted by wastewater effluents. Disinfection/oxidation of these waters during water treatment may lead to the formation of several disinfection by-products, including the probable human carcinogen N-nitrosodimethylamine (NDMA) and the regulated trihalomethanes (THMs). In this study, the potential of ion exchange resins to control both NDMA and THMs precursors in a single treatment is presented. Two ion exchange resins were examined, a cation exchange resin (Plus) to target NDMA precursors and an anion exchange resin (MIEX) for THMs precursors control. We applied the resins, individually and combined, in the treatment of surface and wastewater effluent samples. The treatment with both resins removed simultaneously NDMA (43–85%) and THMs (39–65%) precursors. However, no removal of NDMA precursors was observed in the surface water with low initial NDMA FP (14 ng/L). The removals of NDMA FP and THMs FP with Plus and MIEX resins applied alone were (49–90%) and (41–69%), respectively. These results suggest no interaction between the resins, and thus the feasibility of effectively controlling NDMA and THMs precursors concomitantly. Additionally, the effects of the wastewater impact and the natural attenuation of precursors were studied. The results showed that neither the wastewater content nor the attenuation of the precursor affected the removals of NDMA and THMs precursors. Finally, experiments using a wastewater effluent sample showed that an increase in the calcium concentration resulted in a reduction in the removal of NDMA precursors of about 50%.es_ES
dc.language.isoen_USes_ES
dc.relation.ispartof
dc.sourceWater Research, Vol 124, pp 20-28es_ES
dc.subjectAnion exchange resines_ES
dc.subjectCation exchange resines_ES
dc.subjectDisinfection by-productses_ES
dc.subjectNDMAes_ES
dc.subjectTHMses_ES
dc.subjectWastewater effluentes_ES
dc.subject628.166 Tratamiento químicoes_ES
dc.titleRemoval of both N-nitrosodimethylamine and trihalomethanes precursors in a single treatment using ion exchange resinses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.typeArtículo científicoes_ES
dc.date.updated2018-06-05T22:57:14Z
dc.identifier.doi10.1016/j.watres.2017.07.028
dc.description.procedenceUCR::Investigación::Unidades de Investigación::Ciencias Básicas::Centro en Investigación en Contaminación Ambiental (CICA)es_ES
dc.description.procedenceUCR::Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Químicaes_ES


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