The effect and biological mechanism of granular sludge size on performance of autotrophic nitrogen removal system |
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| Authors: | Xing Ya-juan Ji Jun-yuan Zheng Ping Wang Lan Ghulam Abbas Jiqiang Zhang Wang Ru He Zhan-fei |
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| Affiliation: | 1.Department of Environmental Engineering,Zhejiang University,Hangzhou,China;2.Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province,Zhejiang University of Science and Technology,Hangzhou,China;3.Key Laboratory of Marine Environment and Ecology, Ministry of Education,Ocean University of China,Qingdao,China;4.Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture,Biogas Institute of Ministry of Agriculture,Chengdu,China;5.Department of Chemical Engineering,University of Gujrat,Gujrat,Pakistan;6.Resources and Environment Department,Binzhou University,Binzhou,China |
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| Abstract: | ![]()
The autotrophic process for nitrogen removal has attracted worldwide attention in the field of wastewater treatment, and the performance of this process is greatly influenced by the size of granular sludge particles present in the system. In this work, the granular sludge was divided into three groups, i.e. large size (>?1.2 mm), medium size (0.6–1.2 mm) and small size (2/g MLVSS/h), low SOUR-N (specific oxygen uptake rate for nitrite oxidizing bacteria, 3.39 mg O2/g MLVSS/h), and a reasonable microbial spatial distribution. |
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