KINETICS OF ORGANIC COMPOUNDS DEGRADATION IN PAPER MILL WASTE WATER CONTAINING 4-CHLOROPHENOL WITH ADVANCED OXIDATION PROCESS (AOPs) OZONE (O3) AND HYDROGEN PEROXIDE (H2O2) COMBINATION

• Main Author: Rohman, Alfi
• Format: Theses
• Language: Indonesia
• Subjects: Teknologi produk organik lainnya
• Online Access: https://digilib.itb.ac.id/gdl/view/32035
• Institution: Institut Teknologi Bandung

Paper mill waste water is produced from the process of pulping, bleaching and papermaking. Chlorine bleaching process will produce byproducts in the form of chlorophenol compounds. Advanced treatment of industrial waste water in paper mill containing 4-chlorophenol is applied by utilising Advanced Oxidation Process (AOPs) as a polishing treatment. AOPs have the ability to generate hydroxyl radical (OH*), a strong oxidant capable of oxidating organic compounds into carbon dioxide, water, and mineral or salts. This research will examine various factors affecting the AOPs process, including ozone-feeding rate with 0 ppm/min; 17.57 ppm/min, and 34.73 ppm/min variations, hydrogen peroxide doses (H2O2) of 0 ppm; 25 ppm; and 50 ppm and pH of 5; 6.61; and 10. The experiment is conducted with multifactor design and duplo method. The paper mill waste water used in this study is the artificial waste containing 10 mg/L 4-chlorophenol and 140.80 mg/L COD. Based on the preliminary experiment, it was discovered that the reaction time of the experiment is conducted within 60 minutes. The optimum condition is achieved in 34.73 ppm/min ozone-feeding rate variation; 25 ppm hydrogen peroxise dose, and pH of 10. The organic compound degradation in tissue paper mill waste water with optimum condition of ozone and hydrogen peroxide combination follows one order with the reaction rate accounted for 0.03 minute-1. The final characteristics of waste in optimum condition has 76.86 mg/L of COD; 20.45 mg/L of BOD; 3.24 mg/L of 4-klorofenol; 24.45 mg/L of TOC; and pH 8.76.