Removal assessment of disinfection by-products (DBPs) from drinking water supplies by solar heterogeneous photocatalysis: A case study of trihalomethanes (THMs).

Pérez-Lucas, Gabriel; Martínez-Menchón, Marina; Vela, Nuria; Navarro, Simón

Publication:
Removal assessment of disinfection by-products (DBPs) from drinking water supplies by solar heterogeneous photocatalysis: A case study of trihalomethanes (THMs).

dc.contributor.author	Pérez-Lucas, Gabriel
dc.contributor.author	Martínez-Menchón, Marina
dc.contributor.author	Vela, Nuria
dc.contributor.author	Navarro, Simón
dc.contributor.department	Química Agrícola, Geología y Edafología
dc.date.accessioned	2024-02-01T08:21:35Z
dc.date.available	2024-02-01T08:21:35Z
dc.date.issued	2022
dc.description	This article is available under the Creative Commons CC-BY-NC license and permits non-commercial use, distribution and reproduction in any medium, provided the original work is properly cited.
dc.description.abstract	Solar heterogeneous photocatalysis was used to remove trihalomethanes (THMs) from drinking water. THMs, mainly trichloromethane (TCM), tribromomethane (TBM), bromodichloromethane (BDCM) and dibromochloromethane (DBCM) are one of the main class of disinfection by-products (DBPs). THMs were determined by HSGC-MS with detection limits (LODs) ranging from 0.5 μg L−1 to 0.9 μg L−1 for TCM and BDCM, respectively. Results show that a great proportion of THMs present in water are finally transferred to air as a result of their high volatility in the order TCM > BDCM > DBCM > TBM. The use of band-gap semiconductor materials (TiO2 and mainly ZnO) used as photocatalysts in combination with Na2S2O8 as electron acceptor and sulfate radical anion (SO4•-) generator enhanced the photooxidation of all THMs as compared to photolytic test. The time required for 50% of THMs to disappear (DT50) from water calculated for the most effective treatment (ZnO/Na2S2O8) were 12, 42, 57 and 61 min for TCM, TBM, BDCM, and DBCM, respectively. Therefore, solar heterogeneous photocatalysis can be considered as an interesting strategy for THMs removal, especially in sunny areas like Mediterranean basin.	es
dc.format	application/pdf	es
dc.format.extent	8	es
dc.identifier.citation	Journal of Environmental Management. 321 (2022), 115936.
dc.identifier.doi	https://doi.org/10.1016/j.jenvman.2022.115936
dc.identifier.issn	0301-4797
dc.identifier.uri	http://hdl.handle.net/10201/138360
dc.language	eng	es
dc.publisher	Elsevier	es
dc.relation	Sin financiación externa.	es
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	Bromodichloromethane	es
dc.subject	Bromoform	es
dc.subject	Chloroform	es
dc.subject	Dibromochloromethane	es
dc.subject	Natural sunlight	es
dc.title	Removal assessment of disinfection by-products (DBPs) from drinking water supplies by solar heterogeneous photocatalysis: A case study of trihalomethanes (THMs).	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es