Advanced Oxidation Process for removing carbamate residue from pesticide manufacturing waste Gallan Kusuma(a*), Endarto Yudo Wardhono(b), and Rahmayetty(b)
a) Program Studi Magister Teknik Kimia, Pascasarjana, Universitas Sultan Ageng Tirtayasa Jl. Raya Jakarta Km.4 Pakupatan, Serang, 42122, Indonesia
b)Jurusan Teknik Kimia, Universitas Sultan Ageng Tirtayasa Jl. Jendral Sudirman Km.03 Cilegon 42435, Indonesia
Abstract
Oxamyl is a type of carbamate ester, which is generally applied as an active ingredient of pesticides. The by-product of the oxamyl manufacturing industry is classified as hazardous and toxic materials due to high toxic and non-biodegradable substances with a high COD (Chemical Oxygen Demand) value. Currently, the degradation of the oxamyl waste is still using conventional methods with a high economic cost, in which the final product is used as a substitute material of cement production. It potentially pollutes the environment if the process does not run properly. Advanced Oxydation Processs (AOP) technology is an effective method in decomposing carbamate
This study aims to obtain the optimum conditions in the degradation of oxamyl waste using AOP technology. In this work, the AOP system is combined with ozonation, assisted by UV (ultraviolet), and a peroxy acid catalyst, H2O2, to produce OH- free radicals. Some of the parameters to be observed are the effect of the amount of H2O2, and Persulfate, catalysts on the rate of oxamyl degradation and calculating the number of process cycles needed. The AOP can degrade oxamyl waste from the initial value of COD from 20117 ppm to less than 200 ppm.
Keywords: Waste Treatment- Oxamyl Hazardous Waste- Advance Oxidation Process Technology
