KAJIAN PENERAPAN METODE ADVANCED OXIDATION PROCESS (AOPS) PADA PENGOLAHAN LIMBAH CAIR DI INDONESIA

Abstract

The increasing number of population and industry in Indonesia has a positive correlation to the waste produced and the diversity of its types so that in processing it also has many obstacles. In overcoming this, the Advanced Oxidation Processes (AOPs) method began to be widely developed because it has several advantages compared to other methods. In Indonesia, there is still little literature that examines the application of the AOPs method. Therefore, a study was conducted on the application of the AOPs method in Indonesia so that it could contribute to the literature on the application of the AOPs method. Based on the results of the study, it was found that AOPs systems applied in Indonesia include sonochemical, fenton, peroxymonosulfate/catalyst, UV/H₂O₂, UV/H₂O₂/TiO₂, O₃/ H₂O₂, O₃/GAC, UV/Fenton/Catalyst, photofenton and electronfenton. These systems have the same working principle of producing free radicals to degrade contaminants, but the difference is how the free radicals are produced. Then, the efficiency of reducing AOPs system contaminants also varies depending on the type of AOPs system used and other factors such as pH conditions, reaction time, H₂O₂ concentration, Fe reagent concentration, PMS concentration, air discharge variation, ozone feeding rate, GAC dose, H₂O₂:FeSO_4, molar ratio, catalyst dose, electrical voltage, electrode distance, H₂O₂/COD ratio and others. The AOPs system applied at Banyumas Regional Hospital is the O₃/UV system plus wasp nest media with a removal efficiency of 41.67% BOD; 33.3% COD; 26.67% TSS; Oil and fat 37.5% and Total Coliform 79.17% while the AOPs system applied in Benowo landfill is O₃/UV/H₂O₂ system plus nanofilter with removal efficiency of BOD 94.63%; COD 94.68%; TSS 95.24%; N-Total 96.71% and Mercury 46.15%.