Advanced Oxidation Processes for Wastewater Purification

Various emerging environmental pollutants, such as antibiotics, organic dyes, pesticides, heavy metal ions, etc., are discharged into water bodies every day. This has led to a growing water environment crisis, with water scarcity posing challenges to human society. A variety of emerging water purification and treatment technologies, such as membrane filtration, adsorption, chemical oxidation, catalytic degradation, biotechnology, etc., have been developed to efficiently remove these pollutants. As an efficient and green chemical oxidation technology, advanced oxidation processes (AOPs) based on the production of non-selective hydroxyl radicals have the benefits of being highly efficient, environmentally friendly, and cost-efficient, as well as being simple to carry out, applicable in mild conditions, and displaying rapid reactions. Therefore, this technology has attracted the attention of numerous researchers and has been applied in the treatment of various wastewaters. AOPs include Fenton oxidation, ozone oxidation, electrochemical oxidation, photocatalysis, photolysis, etc.