UV/H₂O₂ Process for Removal of Total Organic Carbon from Refinery Effluent: Screening of Influence Factors Using Response Surface Methodology

Abstract:

Effluent containing high concentration of alkanolamine from a sweetening process of natural gas plant is commonly generated during maintaining, cleaning and scheduled inspection of the absorption and desorption column. The effluent is not readily biodegradable and cannot be treated in the conventional biological treatment. Advanced oxidation processes (AOPs) is a promising method for the treatment of recalcitrant organic contaminant. Most methods used are Fenton reagent, UV/Ozone and UV/H₂O₂. Based on the advantages of the UV/H₂O₂ such as no formation of sludge during the treatment, high ability in production of hydroxyl radical and applicable in the wide range of pH, the UV/H₂O₂ has been chosen to treat the effluent from refinery plant, which has high concentration of methyldietnaolamine (MDEA). The factors influencing in the degradation of refinery wastewater that contain MDEA were screened using response surface methodology (RSM). It was found that degradation process of the refinery effluent was highly dependent on oxidant concentration (H₂O₂) and initial pH. Temperature of oxidation process was found oppositely. Since the temperature gave insignificant effect on the TOC removal process, hence the independent factor temperature will be eliminated during the further optimization process condition of degradation. Thus, the optimization process condition of degradation will be more effective and simpler.

• Periodical: Advanced Materials Research (Volume 917)
• Pages: 168-177
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.917.168
• Online since: June 2014
• Authors: Sabtanti Harimurti*, Anisa Ur Rahmah, Abdul Aziz Omar, Thanapalan Murugesan
• Keywords: Refinery Effluent, RSM, Screening, TOC, UV/H₂O₂

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