Shin, Jeong-Hoon Sang, Byoung-In Chung, Yun-Chul Choung, Youn-Kyoo 2024-01-20T23:33:54Z 2024-01-20T23:33:54Z 2021-08-31 2008-03-01 0011-9164 https://pubs.kist.re.kr/handle/201004/133666 A continuous stirred tank reactor (CSTR) type of hollow fiber membrane biofilm reactor (HF-MBfR) using composite membranes was investigated for the nitrogen removal in synthetic wastewater. The CSTR-type of HF-MBfR process couples autotrophic biological nitrogen removal reactors with the bubbleless mass transfer of oxygen and hydrogen through hollow fiber membranes. For nitrification, CSTR-type of HF-MBfR was operated over 400 days and for hydrogenotrophic denitrification, CSTR-type of HF-MBfR was operated over 300 days. The maximum steady-state NH4+-N removal rate achieved was 0.25 kg N/m(3) day (2.06 g N/m(2) day) and the denitrification rate achieved was 0.22 kg N/m(3) day (1.72 g N/m(2) day). Consequently, in the HF-MBfRs, biofilms were formed stably on surface of membranes, and nitrification and hydrogenotrophic denitrification were performed successfully during long-term operation. English ELSEVIER SCIENCE BV WATER BIOREACTOR A novel CSTR-type of hollow fiber membrane biofilm reactor for consecutive nitrification and denitrification Article 10.1016/j.desal.2007.01.113 1 DESALINATION, v.221, no.1-3, pp.526 - 533 DESALINATION 221 1-3 526 533 scie scopus 000254377500065 2-s2.0-38349042151 Engineering, Chemical Water Resources Engineering Water Resources Article; Proceedings Paper WATER BIOREACTOR CSTR-type of HF-MBfR nitrification hydrogenotrophic denitrification