CHUNG YUNCHUL 손대희 AHN DAE HEE KIM DONG WOOK 2024-01-13T17:34:41Z 2024-01-13T17:34:41Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/109648 English ammonia nitrogen biofilm formation denitrification ion exchange bioregeneration natural zeolite Nitrogen removal in wastewater using natural zeolite powder as a biofilm media Conference 1 Proceedings of IAWQ Biofim Conference Proceedings of IAWQ Biofim Conference US