Effect of Sludge Loading on the Simultaneous Nitrification and Denitrification by Using a Sequencing Batch Bioreactor

Abstract:

In this study, a sequencing batch reactor (SBR) was used to treat synthetic wastewater when dissolved oxygen (DO) concentration and temperature were 0.5-1.0mg/L and 30±1°C, respectively. Effect of sludge loading(Ns) on simultaneous nitrification and denitrification (SND) was investigated. The results indicated that removal efficiencies of ammonia nitrogen (NH₄⁺-N), COD and total nitrogen (TN) were all higher than 90%, respectively, when influent NH₄⁺-N and Ns were 35-45mg/L, 0.15kgCOD/(kgMLSS•d) under 7 hours of aeration time and 1 hour of idle time, respectively. Therefore, the SBR has obviously achieved simultaneous nitrification and denitrification.

• Periodical: Advanced Materials Research (Volumes 183-185)
• Pages: 231-235
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.183-185.231
• Online since: January 2011
• Authors: Yan Ping Jia, Lan He Zhang, Zhi Ling Zhao, Tao Yang
• Keywords: Sequencing Batch Reactor (SBR), Simultaneous Nitrification and Denitrification (SND), Sludge Loading

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