title: Colour and COD removal of disperse dye solution by a novel coagulant: application of statistical design for the optimization and regression analysis.
abstract: The investigation presented here focussed on the steel industrial wastewater (SIWW) FeCl(3) rich as an original coagulant to remove the synthetic textile wastewater. Response surface methodology was used to study the cumulative effect of the various parameters namely, coagulant dosage, initial pH of dye solution, dye concentration and to optimize the process conditions for the decolourization and COD reduction of disperse blue 79 solution. For obtaining the mutual interaction between the variables and optimizing these variables, a 2(3) full factorial central composite rotatable design using response surface methodology was employed. The efficiencies of decolourization and COD reduction for disperse blue 79 solution were accomplished at optimum conditions as 99% and 94%, respectively.
authors.affiliation: Laboratoire de Génie de l'Eau & de l'Environnement, Université Hassan II, Faculté des Sciences & Techniques de Mohammedia, Morocco. aanouzla@gmail.com
authors.forename: Abdelkader
authors.initials: A
authors.lastname: Anouzla
authors.forename: Younes
authors.initials: Y
authors.lastname: Abrouki
authors.forename: Salah
authors.initials: S
authors.lastname: Souabi
authors.forename: Mohammed
authors.initials: M
authors.lastname: Safi
authors.forename: Hicham
authors.initials: H
authors.lastname: Rhbal
mesh_terms: D001391:Azo Compounds / Q000302:isolation & purification*; D011232:Chemical Precipitation; D002712:Chlorides; D004396:Coloring Agents / Q000737:chemistry / Q000302:isolation & purification*; D005290:Ferric Compounds / Q000737:chemistry*; D007220:Industrial Waste / Q000517:prevention & control*; D008669:Metallurgy; D012044:Regression Analysis; D012996:Solutions; D013232:Steel; D013784:Textiles; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*
chemical_list: D001391:Azo Compounds; D002712:Chlorides; D004396:Coloring Agents; D005290:Ferric Compounds; D007220:Industrial Waste; D012996:Solutions; D014874:Water Pollutants, Chemical; D013232:Steel; C447399:disperse blue 79; C024555:ferric chloride