First full-scale nitritation-anammox plant using gel entrapment technology for ammonia plant effluent
| Autor: | Kazuichi Isaka, Masahiro Matsuura, Yuya Kimura, Satoshi Tsuneda, Toshifumi Osaka |
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| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
Chromatography 0208 environmental biotechnology Biomedical Engineering chemistry.chemical_element Bioengineering 02 engineering and technology 010501 environmental sciences Pulp and paper industry 01 natural sciences Nitrogen 020801 environmental engineering Industrial wastewater treatment Ammonia production chemistry.chemical_compound Nitrate chemistry Anammox Nitrification Ammonium Effluent 0105 earth and related environmental sciences Biotechnology |
| Zdroj: | Biochemical Engineering Journal. 122:115-122 |
| ISSN: | 1369-703X |
| Popis: | The first full-scale nitritation-anammox process using gel entrapment technology was evaluated for nitrogen removal. Ammonia plant effluents contained not only ammonium but also methanol, an anammox inhibitor. The nitrogen concentration and loading design were 690 mg/L and 400 kg-N/d, respectively. A nitritation reactor (170 m3) filled with nitrification gel carriers was started up on day 20, with a resulting nitrification efficiency of 58%. A stable nitritation performance was observed without significant nitrate production for >1 year. A nitrogen conversion rate of 3.2 kg-N/m3/d was observed on the anammox reactor (100 m3) filled with anammox gel carrier on day 69. The full-scale anammox reactor could be started up in approximately 2 months. Subsequently, stable nitrogen removal performance was observed for >1 year. The average nitrogen loading, nitrogen conversion rate, and total nitrogen removal on the anammox reactor were 3.6 kg-N/m3/d, 3.0 kg-N/m3/d and 330 kg-N/d, respectively. The nitrogen removal performance obtained in this study will facilitate further application of the anammox processes to many types of industrial wastewater treatment. |
| Databáze: | OpenAIRE |
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