From Laboratory Studies to the Field Applications of Advanced Oxidation Processes: A Case Study of Technology Transfer from Switzerland to Burkina Faso on the Field of Photochemical Detoxification of BiorecalcitrantChemical Pollutants in Water. (9th June 2009)

• Record Type: Journal Article
• Authors: Kenfack, S.; Sarria, V.; Wéthé, J.; Cissé, G.; Maïga, A. H.; Klutse, A.; Pulgarin, C.
• Other Names: Abdel-Mottaleb Mohamed Sabry Academic Editor.
• Is Part Of: International journal of photoenergy. Volume 2009(2009)
• Publication Date: 2009-06-09
• Subjects: Photochemistry -- Periodicals; Photobiology -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Photochimie; Photobiologie; Chimie physique et théorique; Chemistry, Physical and theoretical; Photobiology; Photochemistry; Electronic journals; Periodicals; 541.35
• DOI: 10.1155/2009/104281
• Languages: English
• ISSNs: 1110-662X

Abstract

Abstract : The Fenton and photo-Fenton detoxification of non-biodegradable chemical pollution in water was investigated under simulated UV light in the laboratory and under direct sunlight in Ouagadougou, Burkina Faso. The laboratory experiments enable one to make a systematic diagnosis among three types of wastewaters, identifying a biorecalcitrant wastewater containing the Chloro-hydroxy-Pryridine (CHYPR). The application of the photo-Fenton process on effluent containing the CHYPR showed not to stimulate the generation of biodegradable by-products. Optimal conditions for detoxification of effluent containing the CHYPR were found atpH = 2.8, [ Fe 2 + ] = 5.2 mM, initial[ H 2 O 2 ] = 768 mM, for an effluent concentrated at 2.2 mM of CHYPR. The application of the photochemical process on a field pilot solar photoreactor for the detoxification of water polluted with a pesticide made with Endosulfan showed very promising results, with potential biodegradable effluents obtained at the end of the photochemical treatment. Optimal conditions of the applied study were found atpH = 3 .[ H 2 O 2 ] = 8 mM and[ Fe 2 + ] = 0.18 mM for an initial concentration of 0.36 mM of Endosulfan.