Optimization of Fenton's reagent coupled to Dissolved Air Flotation to remove cyanobacterial odorous metabolites and suspended solids from raw surface water

Optimization of Fenton's reagent coupled to Dissolved Air Flotation to remove cyanobacterial odorous metabolites and suspended solids from raw surface water

Ferrous salts are commonly used as coagulants in Water Treatment Plants (WTPs). When these salts are combined with hydrogen peroxide in acidic conditions - besides coagulation - an additional Advanced Oxidation Process (Fenton's reagent) can take place. Using a response surface methodology, thi...

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Veröffentlicht in:Water science and technology 2011-01, Vol.64 (8), p.1668-1674
Hauptverfasser: Elías-Maxil, Jorge A, Rigas, Fotis, Orta de Velásquez, María Teresa, Ramírez-Zamora, Rosa-María
Format: Artikel
Sprache:eng
Schlagworte:
2-Methylisoborneol
Acidic oxides
Air
Coagulants
Cyanobacteria - metabolism
Drinking water
Fentons reagent
Ferrous Compounds - chemistry
Flotation
Geosmin
Hydrogen peroxide
Hydrogen Peroxide - chemistry
Influents
Iron - chemistry
Metabolites
Models, Statistical
Odorants
Optimization
Oxidation
Oxidation process
Oxidation-Reduction
Pollutants
Raw water
Response surface methodology
Salts
Sedimentation
Separation techniques
Surface water
Suspended particulate matter
Total suspended solids
Waste Disposal, Fluid - methods
Wastewater treatment
Water Purification - methods
Water treatment
Water treatment plants
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Zusammenfassung:Ferrous salts are commonly used as coagulants in Water Treatment Plants (WTPs). When these salts are combined with hydrogen peroxide in acidic conditions - besides coagulation - an additional Advanced Oxidation Process (Fenton's reagent) can take place. Using a response surface methodology, this paper presents the optimization of a novel treatment system constituted by Fenton's reagent (FE) and Dissolved Air Flotation (DAF) for removing 2-Methylisoborneol (MIB), geosmin and Total Suspended Solids (TSS) from raw water. FE was proven able to remove completely both micro pollutants found in the influent of a drinking water treatment plant. Moreover, higher clarification rate was achieved by coupling FE-DAF with respect FE-Sedimentation.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2011.528