Acute toxicity removal in textile finishing wastewater by Fenton's oxidation, ozone and coagulation-flocculation processes.
This study evaluates the effectiveness of Fenton's oxidation (FO) process and ozone (O3) oxidation compared with a coagulation-flocculation (CF) process to remove effluent toxicity as well as colour and COD from a textile industry wastewater. Daphnia magna was used to test acute toxicity in raw and pre-treated wastewater. The operational parameters for each process were determined on the basis of complete toxicity removal. The FO process removed COD at a higher rate (59%) than O3 (33%) while colour removal was similar (89% and 91%, respectively). The CF process removed both COD and colour at rates similar to the FO process. A colour range of 150-250 platin-cobalt (Pt-Co) unit was assessed for toxicity.
Meriç
Süreyya
S
Department of Civil Engineering, University of Salerno, 84084 Fisciano (SA), Italy. smeric@tin.it
Selçuk
Hüseyin
H
Belgiorno
Vincenzo
V
D005427:Flocculation; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007220:Industrial Waste; D007501:Iron / Q000737:chemistry*; D007700:Kinetics; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D010126:Ozone / Q000737:chemistry*; D018570:Risk Assessment; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification* / Q000633:toxicity; D018508:Water Purification / Q000379:methods*
C045076:Fenton's reagent; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D010126:Ozone; D006861:Hydrogen Peroxide; D007501:Iron; D010100:Oxygen