| Title |
Sidestream Deammonification |
| Authors |
박영현 ( Younghyun Park ) ; 김정미 ( Jeongmi Kim ) ; 최원영 ( Wonyoung Choi ) ; 유재철 ( Jaecheul Yu ) ; 이태호 ( Taeho Lee ) |
| DOI |
https://doi.org/10.15681/KSWE.2017.34.1.109 |
| Keywords |
Anaerobic ammonium oxidation; Deammonification; Partial nitritation; Sidestream; Single-stage sequencing batch reactor |
| Abstract |
Sidestream in domestic wastewater treatment plants contains high concentration of ammonium, which increases nitrogen loading rate in the mainstream. The process for deammonification consisting of partial nitritation-anaerobic ammonium oxidation (ANAMMOX) and heterotrophic denitrification is an economical method of solving this problem. Currently, about 130 full-scale deammonification plants are fully operating around the world, but none is in Korea. In order to transfer the principal information about sidestream deammonification processes to researchers and operators, we summarized basic concepts, processes type, and key influence factors (e.g., concentration of nitrogen compounds, dissolved oxygen (DO), temperature, and pH). This review emphasis on the processes of single-stage sequencing batch reactor (SBR) deammonification, which are widely used as full-scale plants. Since simultaneous processes of partial nitritation, ANAMMOX and heterotrophic denitrification occur in a single reactor, the single-stage SBR deammonification requires appropriate control/monitoring strategies for several operating factors (DO and pH mostly) to achieve efficient and stable operation. In future, AB-process consisting of A-stage (energy harvesting from organics) and B-stage (ammonium removal without organics) will be applied to the wastewater treatment process. Thus, we suggest mainstream deammonification for B-stage connected with the sidestream deammonification as seeding source of ANAMMOX. We expect that many researchers will become more interested in the sidestream deammonification. |