Research on Startup Process and Influencing Factors of Half-Nitrosofication in CANON Reactor

Abstract:

The experimental study on startup process of half-nitrosofication for high ammonia nitrogen simulated wastewater has been accomplished with a reactor of completely autotrophic nitrogen removal over nitrite (CANON). The startup process and its influences of the concentration of influent , DO and pH were analyzed with the experimental results. The results show that the conversion rate of to is close to 55%, the accumulation rate of is over 95% and the rate of to steadily keeps as 1.02~1.24 under the condition of influent of 400 mg/L, pH of 7.6~8.2, DO of 0.95~1.3mg/L, HRT of 1.5d and water temperature of 17~27°C, which meet the environmental requirements for anaerobic ammonia oxidation bacteria growth, and half-nitrosofication was achieved in the CANON reactor, which create good conditions for further enrichment of anammox bacteria for the operation of the CANON reactor.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 1464-1468
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.1464
• Online since: September 2013
• Authors: Yi Wang, La Hua Jin*
• Keywords: Anammox Bacteria, CANON Reactor, Half-Nitrosofication

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