DEVELOPMENT OF ZEOLITE BASED CATALYST FOR PHENOL WASTE DEGRADATION USING CATALYTIC OZONATION

• Main Author: Priscilla, Angelina
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/55303
• Institution: Institut Teknologi Bandung

Phenolic waste from various industrial activities is categorized as hazardous and toxic substance that can cause harm to health and the ecosystem if the waste is not processed properly. Catalytic ozonation has been proved to give more than 90% conversion in processing phenolic compounds and has flexibility to use different kinds of catalyst, including zeolite based catalyst. Zeolite has been commonly used as catalyst in various catalytic ozonation practices to degrade phenolic compounds due to its shape selective character and ability to produce hydroxyl radical from ozone. This research is done using ZSM-5, H-Y, and clinoptilolite as the zeolite catalysts. Each catalyst should be charactized to determine its crystalline structure, crystallite size, Si/Al ratio, and morphology. Catalysts activity in catalytic ozonation for phenol waste degradation are tested for 30 minutes with 1L ozone/minute for each run. The initial phenol concentration is set to 100 ppm. Phenol solution sample are taken for every 6 minutes to be tested with UV-Vis technology. The purpose of this research is to characterized and test each zeolite’s performances in phenol waste degradation using catalytic ozonation. The result of this research shows that ZSM-5 and clinoptilolite give the highest phenol waste degradation efficiencies at 94,9% and 94,6%, respectively. Ozonation system without catalyst is done as a control variable, which gives phenol waste degradation efficiency at 91,6%. Meanwhile, H-Y (38) and H-Y (20) can give phenol waste degradation efficiency at 90,4% and 87,7%, respectively. Higher Si/Al ratio gives higher hidrophobicity to zeolite catalyst which can improve phenolic compounds adsorption and degradation. But, pore opening size and dimension, pore channeling, and crystallite size are also taking accounts in hydroxyl radical production and phenol oxidation.