Ahn Kyu Hong Jae Woo Lee CHA HO YOUNG SONG KYUNG GUEN Park Ki Young 김진 LEE YONGHUN 2024-01-13T13:00:28Z 2024-01-13T13:00:28Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/106986 English activated sludge system biodegradability excess sludge ozonation sludge Operational strategies for the optimization of a pilot scale activated sludge system minimizing the sludge production with ozone oxidation Conference 1 Proceedings of IWA 3rd World Water Congress, pp.363 - 368 Proceedings of IWA 3rd World Water Congress 363 368 AT