2010
DOI: 10.1139/l10-065
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Contribution à l’étude de l’effet de la coagulation avant chloration sur la formation des trihalométhanes (THM) et composés organohalogénés (COX) dans les eaux alimentant la ville de Casablanca au MarocArticle envoyé à la Revue du génie et de la science de l'environnement.

Abstract: Cette étude visait la détermination et le suivi des sous-produits de désinfection (SPD) halogénés des eaux naturelles servant à la production d'eau potable de la ville de Casablanca au Maroc. Dans un premier temps, un suivi des paramètres physicochimiques des eaux naturelles a été effectué dans le but de caractériser ces eaux, pour lesquelles la demande en chlore a été déterminée à partir du traçage de la courbe de point de rupture (« break point »). Dans un deuxième temps, des eaux ont été synthétisées au lab… Show more

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“…If we manage to remove turbidity, we can say that we have removed organic and mineral matter (complexation), [27][28][29] because the removal of the colour created by humic acid means the removal of organic and dissolved colloidal organics and micropollutants. 30 The samples were mixed at 180 rpm for 2 min after addition of coagulant to provide mixing; the speed was then reduced to 40 rpm for 30 min to ensure flocculation. 31 The time and speed of mixing were set with an automatic controller.…”
Section: Jar Testmentioning
confidence: 99%
“…If we manage to remove turbidity, we can say that we have removed organic and mineral matter (complexation), [27][28][29] because the removal of the colour created by humic acid means the removal of organic and dissolved colloidal organics and micropollutants. 30 The samples were mixed at 180 rpm for 2 min after addition of coagulant to provide mixing; the speed was then reduced to 40 rpm for 30 min to ensure flocculation. 31 The time and speed of mixing were set with an automatic controller.…”
Section: Jar Testmentioning
confidence: 99%
“…It also removes the color generally caused by organic substances such as humic and fulvic acids. The remove of these colloidal particles and color can lead to remove pollutants from water by adsorption and therefore a significant removal of undesirable organic substance, such as trihalomethane precursors [2,3].…”
Section: Introductionmentioning
confidence: 99%