SONG KYUNG GUEN Ahn Kyu Hong 정연규 2024-01-13T12:01:57Z 2024-01-13T12:01:57Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/106547 English sludge ozonation carbon source denitrificatin minimization of excess sludge nitrogen removal Performance of biological nutrient removal system with sludge ozonation process for minimization of excess sludge Conference 1 Proceedings of Asian Waterqual 2003 Proceedings of Asian Waterqual 2003 TH