Overview on Chemical Oxidation Technology in Wastewater Treatment

Many industrial activities utilize organic compounds as a key chemical in organic synthesis of special chemicals such as, synthetic resins, paper products, medicinal products, drugs, dying and others. Different chemical processes, most of them based in oxidation-reduction reactions, are being applied. Processes such as chlorination, ozonation, UV irradiation, electrochemical treatments and processes based in OH. radical attack have been investigated looking for the the best effectiveness to eliminate these toxic soluble substances. Most of these treatments have proved worthy in this field, achieving good results in the destruction pollutants. Also must of these researches in this field have been focused in the mineralization of pollutants. Due to the increasing interest in developing alternative methods for improving the treatment of wastewater containing organic pollutants, advanced chemical oxidation technologies (AOTs), was applied for destruction of some organic compounds from their aqueous solutions and from industrial wastewater containing them. This review focuses on different Oxidation technologies which can be used for destruction of organic pollutants. Advanced chemical oxidation technology applications help in the elimination of environmentally hazardous waste. This article is concerned especially with advanced chemical oxidation technologies and the application of "Fenton oxidation" as a practical example for this technology (AOTs) for removal of organic pollutants from wastewater.