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Enhanced Nutrient Removal with Upflow Biological Aerated Filter for Reclaimed Water |
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| Authors: | WANG Hai-dong PENG Yong-zhen WANG Shu-ying and ZHANG Yan-ping |
| Affiliation: | Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering,Beijing University of Technology,Beijing 100022,China; Environment Protection Research & Design Institute,Central Research Institute of Building and Construction,MCC GROUP,Beijing 100088,China;Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering,Beijing University of Technology,Beijing 100022,China;Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering,Beijing University of Technology,Beijing 100022,China;College of Chemical and Environmental Engineering,Beijing Technology and Business University,Beijing 100037,China |
| Abstract: | A two-stage upflow biological aerated filter was designed as an advanced treatment process to optimize the operating parameters and study the correlative factors influencing the efficiency of nitrification, denitrification and phosphorus removal. The experimental results showed that the final effluent of the two-stage upflow biofilter process operated in series could meet the stringent limits of the reclaimed water for the total nitrogen of 2mg/L, and total phosphorus of 0.3mg/L. The high treatment efficiency allowed the reactor operating at very high hydraulic loadings and reaching nearly complete nitrification and denitrification. |
| Keywords: | biological aerated filter nitrification denitrification nitrogen and phosphorus removal reclaimed water |
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