Bae, Hyokwan Chung, Yun-Chul Yang, Heejeong Lee, Changsoo Aryapratama, Rio Yoo, Young J. Lee, Seockheon 2024-01-20T08:01:01Z 2024-01-20T08:01:01Z 2021-09-05 2015-01-28 1093-4529 https://pubs.kist.re.kr/handle/201004/125846 In this work, nitrification and changes in the composition of the total bacterial community under inorganic carbon (IC)-limited conditions, in a nitrifying moving bed biofilm reactor, was investigated. A culture-independent analysis of cloning and sequencing based on the 16S rRNA gene was applied to quantify the bacterial diversity and to determine bacterial taxonomic assignment. IC concentrations had significant effects on the stability of ammonia-oxidation as indicated by the reduction of the nitrogen conversion rate with high NH4+-N loadings. The predominance of Nitrosomonas europaea was maintained in spite of changes in the IC concentration. In contrast, heterotrophic bacterial species contributed to a high bacterial diversity, and to a dynamic shift in the bacterial community structure, under IC-limited conditions. In this study, individual functions of heterotrophic bacteria were estimated based on taxonomic information. Possible key roles of coexisting heterotrophic bacteria are the assimilation of organic compounds of extracellular polymeric substances produced by nitrifiers, and biofilm formation by providing a filamentous structure and aggregation properties. English TAYLOR & FRANCIS INC AMMONIA-OXIDIZING BACTERIA WATER TREATMENT PLANTS MUNICIPAL WASTE-WATER IN-SITU HYBRIDIZATION SP-NOV. ACTIVATED-SLUDGE NITRITE ACCUMULATION NITROSPIRA SPP. GEN. NOV. NITRIFICATION Assessment of bacterial community structure in nitrifying biofilm under inorganic carbon-sufficient and -limited conditions Article 10.1080/10934529.2014.975550 1 JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, v.50, no.2, pp.201 - 212 JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 50 2 201 212 scie scopus 000347526000011 2-s2.0-84920742614 Engineering, Environmental Environmental Sciences Engineering Environmental Sciences & Ecology Article AMMONIA-OXIDIZING BACTERIA WATER TREATMENT PLANTS MUNICIPAL WASTE-WATER IN-SITU HYBRIDIZATION SP-NOV. ACTIVATED-SLUDGE NITRITE ACCUMULATION NITROSPIRA SPP. GEN. NOV. NITRIFICATION Bacterial community structure nitrifying biofilm heterotrophs inorganic carbon