Arash Zamyadi, Emma Sawade, Lionel Ho, Gayle Newcombe et Ron Hofmann
Article de revue (2015)
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Abstract
Cyanobacteria and their taste and odor (T&O) compounds are a growing concern in water sources globally. Geosmin and 2-methylisoborneol (MIB) are the most commonly detected T&O compounds associated with cyanobacterial presence in drinking water sources. The use of ultraviolet and hydrogen peroxide (H₂O₂) as an advanced oxidation treatment for T&O control is an emerging technology. However, residual H₂O₂ (>80% of the initial dose) has to be removed from water prior final disinfection. Recently, granular activated carbon (GAC) is used to remove H₂O₂ residual. The objective of this study is to assess the impact of H₂O₂ quenching and aging processes on GAC capacity for the removal of geosmin and MIB. Pilot columns with different types of GAC and presence/absence of H₂O₂ have been used for this study. H₂O₂ removal for the operational period of 6 months has no significant impact on GAC capacity to remove the geosmin and MIB from water.
Mots clés
Gac; Uv-h₂o₂; advanced oxidation; cyanobacteria; granular activated carbon; taste and odor; water treatment
| Sujet(s): |
1000 Génie civil > 1007 Ressources et approvisionnement en eau 1500 Génie de l'environnement > 1502 Traitement des eaux usées |
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| Département: | Département des génies civil, géologique et des mines |
| Organismes subventionnaires: | CRSNG/NSERC, NSERC industrial chairs at University of Toronto, Drinking Water research group, Australian Water Quality Centre (AWQC) and South Australian Water Corporation (SA Water), Water Research Australia ltd. (WaterRA) funding scheme |
| Numéro de subvention: | 1021 |
| URL de PolyPublie: | https://publications.polymtl.ca/5189/ |
| Titre de la revue: | Environmental Health Insights (vol. 9, no Suppl) |
| Maison d'édition: | Sage Journals |
| DOI: | 10.4137/ehi.s29431 |
| URL officielle: | https://doi.org/10.4137/ehi.s29431 |
| Date du dépôt: | 27 févr. 2023 09:55 |
| Dernière modification: | 28 sept. 2024 07:30 |
| Citer en APA 7: | Zamyadi, A., Sawade, E., Ho, L., Newcombe, G., & Hofmann, R. (2015). Impact of UV-H₂O₂ advanced oxidation and aging processes on GAC capacity for the removal of cyanobacterial taste and odor compounds. Environmental Health Insights, 9(Suppl), 10 pages. https://doi.org/10.4137/ehi.s29431 |
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