손대희 CHUNG YUNCHUL AHN DAE HEE 유명진 2024-01-13T13:33:18Z 2024-01-13T13:33:18Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/107432 English ammonia nitrogen Biological ion exchange process for ammonium ion removal from piggery wastewater Conference 1 Asian Waterqual 2001, First IWA Asia-Pacific Regional Conference, pp.825 - 830. Asian Waterqual 2001, First IWA Asia-Pacific Regional Conference 825 830. UK