Continuous treatment of non-sterile hospital wastewater by Trametes versicolor : how to increase fungal viability by means of operational strategies and pretreatments
Mir Tutusaus, Josep Anton (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Caminal i Saperas, Glòria (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Sarrà i Adroguer, Montserrat (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Data:	2016
Resum:	Hospital wastewaters have a high load of pharmaceutical active compounds (PhACs). Fungal treatments could be appropriate for source treatment of such effluents but the transition to non-sterile conditions proved to be difficult due to competition with indigenous microorganisms, resulting in very short-duration operations. In this article, coagulation-flocculation and UV-radiation processes were studied as pretreatments to a fungal reactor treating non-sterile hospital wastewater in sequential batch operation and continuous operation modes. The influent was spiked with ibuprofen and ketoprofen, and both compounds were successfully degraded by over 80%. UV pretreatment did not extent the fungal activity after coagulation-flocculation measured as laccase production and pellet integrity. Sequential batch operation did not reduce bacteria competition during fungal treatment. The best strategy was the addition of a coagulation-flocculation pretreatment to a continuous reactor, which led to an operation of 28days without biomass renovation.
Ajuts:	Ministerio de Economía y Competitividad CTM2013-48545-C2-1-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-0476
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Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Fungal bioreactor ; Hospital wastewater ; Non-sterile ; Pharmaceutical active compounds ; Pretreatment
Publicat a:	Journal of hazardous materials, Vol. 318 (Nov. 2016) , p. 561-570, ISSN 1873-3336

DOI: 10.1016/j.jhazmat.2016.07.036

Postprint 22 p, 1.9 MB

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