title: Cosmetic wastewater treatment by coagulation and advanced oxidation processes.
abstract: In this study, the treatment process of three cosmetic wastewater types has been investigated. Coagulation allowed to achieve chemical oxygen demand (COD) removal of 74.6%, 37.7% and 74.0% for samples A (Al2(SO4)3), B (Brentafloc F3) and C (PAX 16), respectively. The Fenton process proved to be effective as well - COD removal was equal to 75.1%, 44.7% and 68.1%, respectively. Coagulation with FeCl3 and the subsequent photo-Fenton process resulted in the best values of final COD removal equal to 92.4%, 62.8% and 90.2%. In case of the Fenton process, after coagulation these values were equal to 74.9%, 50.1% and 84.8%, while in case of the H2O2/UV process, the obtained COD removal was 83.8%, 36.2% and 80.9%. High value of COD removal in the Fenton process carried out for A and C wastewater samples was caused by a significant contribution of the final neutralization/coagulation. Very small effect of the oxidation reaction in the Fenton process in case of sample A resulting from the presence of antioxidants, 'OH radical scavengers' in the wastewater.
authors.forename: Jeremi
authors.initials: J
authors.lastname: Naumczyk
authors.forename: Jan
authors.initials: J
authors.lastname: Bogacki
authors.forename: Piotr
authors.initials: P
authors.lastname: Marcinowski
authors.forename: Paweł
authors.initials: P
authors.lastname: Kowalik
mesh_terms: D000534:Alum Compounds / Q000737:chemistry; D000975:Antioxidants / Q000737:chemistry; D057919:Biological Oxygen Demand Analysis; D002712:Chlorides / Q000737:chemistry; D003358:Cosmetics / Q000032:analysis*; D005290:Ferric Compounds / Q000737:chemistry; D016166:Free Radical Scavengers / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D017665:Hydroxyl Radical / Q000737:chemistry; D007220:Industrial Waste; D007501:Iron / Q000737:chemistry; D009391:Nephelometry and Turbidimetry; D010100:Oxygen / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods; D062065:Wastewater; D014873:Water Pollutants; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
chemical_list: D000534:Alum Compounds; D000975:Antioxidants; D002712:Chlorides; D003358:Cosmetics; D005290:Ferric Compounds; D016166:Free Radical Scavengers; D006861:Hydrogen Peroxide; D017665:Hydroxyl Radical; D007220:Industrial Waste; D007501:Iron; D010100:Oxygen; D062065:Wastewater; D014873:Water Pollutants; D014874:Water Pollutants, Chemical; C045076:Fenton's reagent; C041524:aluminum sulfate; C024555:ferric chloride