Research on Features of Domestic Wastewater Treatment and Mechanism of Denitrification in Anaerobic MBBR Reactor

Abstract:

This paper studied on the treatment of urban domestic wastewater with Anaerobic MBBR in the tropical and subtropical areas in the South of China. The emphasis focused on the effects of the Hydraulic Retention Time (HRT) and pH value to the COD_Cr concentration and the NH3-N concentration of the outflow of the reactor. Moreover, the mechanism of denitrification was also explored. The results showed that the mechanism of denitrification of the reactor was found. When HRT was equal to or more than 8h, NH3-N was reduced mainly in the way of short-cut nitrification and denitrification. When HRT was less than 8h, the reactions of short-cut nitrification and denitrification & anaerobic ammonia oxidation both existed in the reactor.

• Periodical: Advanced Materials Research (Volumes 455-456)
• Pages: 1030-1036
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.455-456.1030
• Online since: January 2012
• Authors: Hui Zhou Yuan, Jian Bang Zhao, Shui Zhou Ke
• Keywords: Anaerobic Ammonia Oxidation, Anaerobic MBBR, Denitrification, Removal of Organic Substance, Short-Cut Nitrification

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