Successful start-up of pilot-scale single-stage ANAMMOX reactor through cultivation of ammonia oxidizing and ANAMMOX bacteria
| Autor: | 최대희 ( Daehee Choi ), 정진영 ( Jinyoung Jung ), 이철우 ( Chulwoo Lee ), 진양오 ( Yangoh Jin ) |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
biology 030106 microbiology chemistry.chemical_element Sequencing batch reactor 010501 environmental sciences biology.organism_classification 01 natural sciences Nitrogen 03 medical and health sciences chemistry.chemical_compound Activated sludge Animal science chemistry Anammox Oxidizing agent Ammonium Nitrite Bacteria 0105 earth and related environmental sciences |
| Zdroj: | Journal of the Korean Society of Water and Wastewater. 32:371-379 |
| ISSN: | 2287-822X 1225-7672 |
| DOI: | 10.11001/jksww.2018.32.5.371 |
| Popis: | The lack of seed sludges for Ammonium Oxidizing Bacteria (AOB) and slow-growing ANaerobic AMMonium OXidation (ANAMMOX) bacteria is one of the major problem for large-scale application. In this study, 24m3 of single-stage SBR (Sequencing Batch Reactor) was operated to remove nitrogen from reject water using AOB and ANAMMOX bacteria cultivated from activated sludge in the field. The ANAMMOX activity was found after 44 days of cultivation in the ANAMMOX cultivation reactor, and then 0.66 kg N/m3/d of the nitrogen removal rate was achieved at 0.78 kg N/m3/d of the nitrogen loading rate at 153 days of cultivation. The AOB cultivation reactor showed 0.2 kg N/m3/d of nitrite production rate at 0.4 kg N/m3/d of nitrogen loading rate after 36 days of operation. The cultivated ANAMMOX bacteria and AOB was mixed into the single-stage SBR. The feed distribution was applied to remove total nitrogen stably in the single-stage SBR. The nitrogen removal rate in the single-stage SBR was gradually enhanced with an increase of specific activities of both AOB and ANAMMOX bacteria by showing 0.49 kg N/m3/d of the nitrogen removal rate at 0.56 kg N/m3/d of the nitrogen loading rate at 54 days of operation. |
| Databáze: | OpenAIRE |
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