Conventional wastewater treatment plants (WWTPs) do not fully remove micropollutants. Enhanced treatment of sewage effluents is being considered or implemented in some countries to minimize the discharge of problematic micropollutants from WWTPs. Representative enhanced sewage treatment technologies for micropollutant removal were reviewed, including their current status of research and development. Advanced oxidation processes (AOPs) such as ozonation and UV/H2O2 and adsorption processes using powdered (PAC) and granular activated carbon (GAC) were mainly discussed with focusing on process principles for the micropollutant removal, effect of process operation and water matrix factors, and technical and economic feasibility. Pilot- and full-scale studies have shown that ozonation, PAC, and GAC can achieve significant elimination of various micropollutants at economically feasible costs(0.16-0.29 €/m3). Considering the current status of domestic WWTPs, ozonation and PAC were found to be the most feasible options for the enhanced sewage effluent treatment. Although ozonation and PAC are all mature technologies, a range of technical aspects should be considered for their successful application, such as energy consumption, CO2 emission, byproduct or waste generation, and ease of system construction/operation/maintenance. More feasibility studies considering domestic wastewater characteristics and WWTP conditions are required to apply ozonation or PAC/GAC adsorption process to enhance sewage effluent treatment in Korea.

ABSTRACT
1. 서 론
2. 방류수 강화처리 기술
    2.1 산화기반 수처리 기술
    2.2 흡착기반 수처리 기술
3. 방류수 강화처리공정 비교 및 국내 적용성 평가
4. 요약 및 제언
사 사
References

• 최상기(광주과학기술원 지구환경공학부) | Sangki Choi (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST))
• 이웅배(광주과학기술원 지구환경공학부) | Woongbae Lee (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST))
• 김영모(한양대학교 건설환경공학과) | Young Mo Kim (Department of Civil and Environmental Engineering, Hanyang University)
• 홍석원(한국과학기술연구원 물자원순환연구센터) | Seok Won Hong (Center for Water Cycle Research, Korea Institute of Science and Technology (KIST))
• 손희종(부산광역시 상수도사업본부 수질연구소) | Heejong Son (Water Quality Institute, Busan Water Authority)
• 이윤호(광주과학기술원 지구환경공학부) Corresponding author