The Experimental Research on the Start-Up and Stable Operation Phase of ANAMMOX System

Abstract:

The purpose of this experiment was to study the inoculation and start-up, domestication and cultivation of ANAMMOX system and the stable operation after the successful start-up. The experiment used the activated sludge SBR reactor and artificial raw water. The inoculated sludge included nitrification sludge, anaerobic sludge and garden soil exudate. The ANAMMOX s ystem was s uccessfully started on the 114th day after the inoculation. The removal ratio of NH4+-N, NO2-, and NO3- -N mostly was 1:2.8～3.6:0.2～1.8. It could be inferred that in addition to Anammox phenomenon, there was other denitrification process without the participation of external carbon sources in the system In the stable operation period, the sludge was flocculent, and the flocs were dispersed, irregular shaped. The sludge was mixed with a large number of red, dark red particles.

• Periodical: Applied Mechanics and Materials (Volumes 744-746)
• Pages: 2407-2416
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.744-746.2407
• Online since: March 2015
• Authors: Chen Wei*, Li Jing Song, Yi Ran Zhao, Ling Mei Song
• Keywords: Anammox, Nitrogen Removal, SBR, Sludge

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