Industrial wastewater often contains a number of recalcitrant organic contaminants. These contaminants are hardly degradable by biological wastewater treatment processes, which requires a more powerful treatment method based on chemical oxidation. Advanced oxidation technology (AOT) has been extensively studied for the treatment of nonbiodegradable organics in water and wastewater. Among different AOTs developed up to date, ozonation and the Fenton process are the representative technologies that widely used in the field. Based on the traditional ozonation and the Fenton process, several modified processes have been also developed to accelerate the production of reactive radicals. This article reviews the chemistry of ozonation and the Fenton process as well as the cases of application of these two AOTs to industrial wastewater treatment. In addition, research needs to improve the cost efficiency of ozonation and the Fenton process were discussed.

ABSTRACT
1. 서 론
2. 고도산화기술
3. 오존 산화기술
    3.1. 오존을 활용한 수처리
    3.2. 수처리에서 오존의 화학반응
    3.3. 오존 산화기술을 활용한 산업폐수 처리
4. 펜톤 산화기술
    4.1. 전기 펜톤 공정
    4.2. 유동상 펜톤 공정
5. 결 언
References

• 김민식(서울대학교 화학생물공학부 화학공정신기술연구소) | Min Sik Kim (School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University)
• 이기명(서울대학교 화학생물공학부 화학공정신기술연구소) | Ki-Myeong Lee (School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University)
• 이창하(서울대학교 화학생물공학부 화학공정신기술연구소) | Changha Lee (School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University) Corresponding author