Effect of pH Value on Nitrogen and Phosphorus Removal in Biochemical Reactor

Abstract:

pH value is one of the most important factors which affect the nitrogen and phosphorus removal in the wastewater treatment process. The influences of potential of hydrogen on nitrogen and phosphorus removal of wastewater were studied in this study. The results revealed that: (1) faintly acidic environment was conducive to biological phosphorus removal in biochemical reactors with FeCl₃, PFS and PAS but not with Al₂(SO₄)₃.On the other hand, synergistic effect between the microorganism and coagulants ( FeCl₃, PFS, Al₂(SO₄)₃ and PAS) was confirmed in this study. (2) faintly acidic environment was favorable to the nitrogen removal in biochemical reactors with PFS and PAS while the faintly alkaline environment was conducive to the nitrogen removal with FeCl₃ and Al₂(SO₄)₃. And there was no synergistic effect between the microorganism and coagulants.

• Periodical: Advanced Materials Research (Volume 777)
• Pages: 263-267
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.777.263
• Online since: September 2013
• Authors: Hong Wei Rong, Meng Xiang Lin, Ke Fang Zhang, Chao Sheng Zhang, Heng Ning Xue, Ming Jie Luo
• Keywords: Coagulants, Nitrogen Removal, pH Value, Phosphorus Removal, Synergistic Effect

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