Yun, Wonsang Cho, Kyungjin Jung, Jinyoung Choi, Daehee 2024-04-18T02:30:10Z 2024-04-18T02:30:10Z 2024-04-18 2024-04 0960-8524 https://pubs.kist.re.kr/handle/201004/149649 This study investigated nutrient conversion pathways and corresponding interactive mechanisms in a mainstream partial-nitritation (PN)/anaerobic ammonium oxidation (anammox)/partial-denitrification-(PD)enhanced biological phosphorus-removal (EBPR) (PN/A/PD-EBPR) process. A laboratory-scale sequencing batch reactor was operated for 301 days under different operational strategies. Mainstream PN/A/PD-EBPR was successfully operated with aerobic and anoxic utilization of organic matter. Aerobic utilization of organic matter was an effective strategy for conversion to denitrifying polyphosphate-accumulating organism-based phosphorus removal, referring to a biological reaction that outperformed nitrite-oxidizing bacteria. Aerobically adsorbed organic matter could be used as a carbon source for PD, which further enhanced nitrogen removal by PN/A. Ultimately, the interaction between complex nutrient conversion pathways served to achieve stable performance. High-throughput sequencing results elucidated the core microbe functioning in the mainstream PN/A/PD-EBPR process with respect to various nutrients. The outcomes of this study will be beneficial to those attempting to implement mainstream PN/A/PD-EBPR. English Elsevier BV Aerobic and anoxic utilization of organic matter for flexible nitrite supply in nutrient conversion pathways based on anaerobic ammonium oxidation: Microbial interactive mechanism Article 10.1016/j.biortech.2024.130473 1 Bioresource Technology, v.397 Bioresource Technology 397 N scie scopus 001197740500001 2-s2.0-85185831169 Agricultural Engineering Biotechnology & Applied Microbiology Energy & Fuels Agriculture Biotechnology & Applied Microbiology Energy & Fuels Article EXTRACELLULAR POLYMERIC SUBSTANCES DENITRIFYING PHOSPHORUS REMOVAL MAINSTREAM PARTIAL NITRITATION OXIDIZING BACTERIA WASTE-WATER ANAMMOX NITRATE SLUDGE DENITRIFICATION NITRIFICATION Extracellular polymeric substance NOB inhibition Mainstream nutrient removal Organic utilization Enhanced phosphorus removal