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Application of a novel backwashing process in upflow biological aerated filter |
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| Authors: | Jinshui Yang Weijie Liu Baozhen Li Hongli Yuan Meiping Tong and Jinsong Gao |
| Institution: | 1. State Key Laboratory for Agrobiotechnology,College of Biological Sciences,Key Laboratory of Agro-Microbial Resource and Application,Ministry of Agriculture,China Agricultural University,Beijing 100193 2. The key Laboratory of Water and Sediment Sciences,Ministry of Education,Department of Environmental Engineering,Peking University,Beijing 100871,China 3. Changsha Medical College,Changsha 410219,China |
| Abstract: | To improve the efficiency of backwashing in upflow biological aerated filter (BAF), a novel backwashing process named air-water siphon backwashing (AWSB) was proposed and applied on laboratory scale. The effects of backwashing on turbidity and suspended solid (SS) in backwashing efluent using this new backwashing process were compared with those of traditional backwashing process, namely air-water backwashing (AWB). In AWB, the turbidity of backwashing efluent maintained 100 NUT when consumed 60 min and 10.... |
| Keywords: | biological aerated filter air-water siphon backwashing chemical oxygen demand |
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