Phenol (C6H5OH) is a known hazardous aromatic hydrocarbon which is produced through both natural and anthropogenic processes. Recently, phenolic compounds have been detected in ground and surface water as contaminants. Moreover, they have a potential to impact on human health and ecology even at low concentration due to high toxicity, high oxygen demand and low bio degradability. As such, it is important to degrade them into harmless species. Hence, a great deal of attention has been paid on contamination of water by phenol. There are different treatment techniques to recovery or destruction of phenol in water such as photo-catalytic oxidation, biological treatment, chemical oxidation, electrochemical oxidation and adsorption. Since each technique has its own drawback, the most convenient technique among them gets the highest attention. Recentlythe electrochemical process (EC) has been popular among these treatment techniques.
The ideal anode material for the oxidation of organic pollutant (phenol) must be highly active towards organic oxidation while low activity towards secondary reactions such as oxygen evolution reactions. In addition, both stability in electrolyte medium and the inexpensiveness are needed. On the other hand, varying the anode material can generate different oxidizing agents and which would modify the oxidation pathway. The main aim of the research work is to develop an electrochemical method is capable of treating specific organic contaminant; phenol in water. The specific objectives of the projectare:
Research Assistant Gr.II Ms. P.B. Jayatilake, NIFS– Completed MPhil degree at PGIS, Uni. Peradeniya. Thesis Title: Anodic oxidation of phenol in contaminated water on dimensionally stable anode Volunteer Ms. B.M.C.S. Wickramasinghe – University of Peradeniya
Prof. Deepal Subasinghe