MS2 coliphage inactivation by Al/Fe PILC-activated Catalytic Wet Peroxide Oxidation: multiresponse statistical optimization

Galeano, Luis-Alejandro Y Ordonez Ordoñez, Alejandra Y Revelo, Dolly Y Garcia, Ana Maria Y Hidalgo-Troya, Arsenio (2019) MS2 coliphage inactivation by Al/Fe PILC-activated Catalytic Wet Peroxide Oxidation: multiresponse statistical optimization. HELIYON, 5 (6). ISSN 24058440

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Resumen

The optimization of the Catalytic Wet Peroxide Oxidation (CWPO) assisted by an Al/Fe-pillared clay (Al/Fe-PILC) was assessed in the inactivation of the MS2 coliphage in the presence of a synthetic surrogate of natural organic matter (NOM). The simultaneous effect of two experimental factors (i) H2O2 dose - (H2O2)d (3.00–25.50 % of the H2O2 theoretically required for full mineralization) and (ii) catalyst concentration (0.33–2.60 g/L), and four noncontrollable variables (covariates) (a) circumneutral pH (6.00–9.00), (b) temperature (5.00–25.0 �C), (c) synthetic NOM concentration (2.0–20.0 mg C/L) and (d) MS2 titer (104, 105 and 106 PFU/mL) was investigated by Response Surface Methodology (RSM). Every response was modeled and maximized (1) MS2 inactivation, (2) fraction of reacted H2O2, (3) decolourization and (4) NOM mineralization. Multi-response optimization via desirability function based on responses (1) to (3) achieved excellent fitting (0.94 out of 1.0) and following set of optimal experimental conditions: 0.33 Al/Fe-PILC/L, 3.36 % (H2O2)d (Feactive/H2O2) ¼ 0.46, giving rise to 92.9 % of MS2 inactivation and 100 % of reacted H2O2 at pH 7.07, 25.0 þ/- 0.1 �C, 16.06 mg C/L as starting NOM concentration, and MS2 titer of 106 PFU/mL after just 70 min of reaction.

Tipo de Elemento:	Artículo
Asunto:	Q Ciencias > QD Chemistry
Division:	Facultad de Ciencias Exactas y Naturales > Programa de Química > Recursos digitales
Depósito de Usuario:	PhD Luis Alejandro Galeano
Fecha Deposito:	04 Jul 2025 22:29
Ultima Modificación:	04 Jul 2025 22:29
URI:	http://sired.udenar.edu.co/id/eprint/15825

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