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Start-up of anaerobic ammonia oxidation bioreactor with nitrifying activated sludge
Authors:Zheng Ping  Lin Feng-mei  Hu Bao-lan  Chen Jian-song
Institution:1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China
2. Hangzhou Environmental Monitoring Station, Hangzhou 310007, China
3. Gongshu Division of Hangzhou Environmental Protection Bureau, Hangzhou 310024,China
Abstract:The anaerobic ammonia oxidation(Anammox) bioreactor was successfully started up with the nitrifying activated sludge. After anaerobically operated for 105 d, the bioreactor reached a good performance with removal percentage of both ammonia and nitrite higher than 95% and volumetric total nitrogen removal as high as 149.55 mmol/( L.d). The soft padding made an important contribution to the high efficiency and stability because it held a large amount of biomass in the bioreactor.
Keywords:Anammox bioreactor  nitrifying activated sludge  start-up  
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