engleski

Treatment of Petrochemical Wastewater by Fenton process Assisted with Ultrasound

Intensive industrial development and rapid growth of world’s population presents a significant threat to the environment due to generation of large amount of wastewater loaded with persistent organic pollutants. In addition, wastewater from petrochemical industry contains a wide range of different organic compounds unacceptable for the environment. A large amount of highly loaded wastewater during vinyl chloride monomer (VCM) production in DINA Petrokemija d.d. Omišalj (Croatia) process unit has been generated. Therefore such type of wastewater can not be released into the environment without further purification. In comparison with conventional treatment methods, advanced oxidation technologies (AOTs) are getting more and more attention due to their high eco-efficiency. The scope of this work was to investigate the benefits offered by AOTs for the treatment of OXY-flow waste stream originated from the recent period of VCM production. From the advanced oxidation processes, Fenton, ultrasound and photooxidation were employed. The optimal conditions for maximal process efficiency in the terms of total organic carbon (TOC) have been established. A proposed mathematical model describes experimental data satisfactory and presents a solid base for the "scale-up" of the process unit for the treatment of wastewater generated during VCM production n DINA Petrokemija d.d. Omišalj, Croatia.

VCM; Petrochemical Wastewater; Fenton process; Ultrasound

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