Cosmetic Wastewater Treatment Using Coagulation and Fenton Processes
Journal Title: Challenges of Modern Technology - Year 2015, Vol 6, Issue 4
Abstract
The cosmetic wastewater was treated by coagulation and Fenton process. COD of raw wastewater was 2888 mg/l. The effectiveness of these processes, defined as a decrease of COD was 66.4% for coagulation for a FeCl3 dose 900 mg/l and 87.7% (to 295mg/l COD) for Fenton process for H2O2/Fe2+ doses 3000/1000mg/l. The contribution of coagulation in Fenton process was defined as 71.3% of the total treatment effect. The calculated H2O2 efficiency is high and for optimal doses reached 149.3%. The optimal pH of Fenton process is 3.0. Even a small change in its value leads to a rapid decrease in the efficiency of oxidation and hence in the effects of the process. The kinetics of the Fenton process can be described as d[COD]/dt =-a tm [COD], where t stands for time, while the a and m are constants, depending on the initial concentration of the reagents. It has been proved that the cosmetic wastewater is susceptible to purification by means of coagulation and Fenton process.
Authors and Affiliations
Jan Bogacki, Piotr Marcinowski, Jeremi Naumczyk
Keywords
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