Prospects on coupling UV/H2O2 with activated sludge or a fungal treatment for the removal of pharmaceutically active compounds in real hospital wastewater
Mir Tutusaus, Josep Anton (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Jaén-Gil, Adrián (Universitat de Girona)
Barceló, Damià (Universitat de Girona)
Buttiglieri, Gianluigi (Universitat de Girona)
Gonzalez-Olmos, Rafael (Universitat Ramon Llull. Institut Químic de Sarrià-IQS)
Rodriguez-Mozaz, Sara (Universitat de Girona)
Caminal i Saperas, Glòria (Institut de Química Avançada de Catalunya)
Sarrà i Adroguer, Montserrat (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Data:	2021
Resum:	Conventional active sludge (AS) process at municipal centralized wastewater treatment facilities may exhibit little pharmaceuticals (PhACs) removal efficiencies when treating hospital wastewater (HWW). Therefore, a dedicated efficient wastewater treatment at the source point is recommended. In this sense, advanced oxidation processes (AOPs) and fungal treatment (FG) have evidenced promising results in degrading PhACs. The coupling of the AOP based on UV/HO treatment with biological treatment (AS or FG) treating a real non-sterile HWW, was evaluated in this work. In addition, a coagulation-flocculation pretreatment was applied to improve the efficiency of all approaches. Twenty-two PhACs were detected in raw HWW, which were effectively removed (93-95%) with the combination of any of the biological treatment followed by UV/HO treatment. Similar removal results (94%) were obtained when placing UV/HO treatment before FG, while a lower removal (83%) was obtained in the combination of UV/HO followed by AS. However, the latest was the only treatment combination that achieved a decrease in the toxicity of water. Moreover, deconjugation of conjugated PhACs has been suggested for ofloxacin and lorazepam after AS treatment, and for ketoprofen after fungal treatment. Monitoring of carbamazepine and its transformation products along the treatment allowed to identify the same carbamazepine degradation pathway in UV/HO and AS treatments, unlike fungal treatment, which followed another degradation route.
Ajuts:	Ministerio de Economía y Competitividad CTM 2013-48545-C2-1-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR 1124 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-0014 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1404 Ministerio de Economía y Competitividad CTM2015-71054-REDT Ministerio de Economía y Competitividad RYC-2014- 16707 Ministerio de Economía y Competitividad RYC-2014-16754 Agencia Estatal de Investigación CTM2017-85385-C2-1-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2019/FI_B2_00202
Nota:	Altres ajuts: acords transformatius de la UAB
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	AOP ; Fungal treatment ; Hospital wastewater ; Activated sludge ; UV/H2O2 ; Decentralized treatment
Publicat a:	Science of the total environment, Vol. 773 (June 2021) , art. 145374, ISSN 1879-1026

DOI: 10.1016/j.scitotenv.2021.145374
PMID: 33582328

12 p, 2.6 MB

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