| Alternating shortcut nitrification-denitrification for nitrogen removal from soybean wastewater by SBR with real-time control |
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| 作者姓名： | WANGShu-ying GAODa-wen PENGYong-zhen WANGPeng YANGQing |
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| 作者单位： | [1]DepartmentofEnvironmentalEngineering,BeijingPolytechnicUniversity,Beijing100022,China [2]CollegeofForestResourcesandEnvironment,NortheastForestry,University,Harbin150040,China. [3]SchoolofMunicipal＆EnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China |
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| 基金项目： | TheNationalNaturalScienceFoundationofChina(No.50138010)andtheNaturalScienceFoundationofHeilongjiangProvince(No .E0230) |
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| 摘 要： | A novel treating technology for nitrogen removal from soybean wastewater was studied. The process for nitrogen removal was achieved by alternating aeration and mixing, combined with real-time control strategies.Results showed that the COD and total nitrogen removal rates are more than 90% and 92% at COD and total nitrogen loads of 1.0- 1.2 kg COD/(kgMLSS. d) and 0.20- 0.27 kg TN/(kgMLSS. d), respectively. In addition, it could improve sludge settling property. SVl value is less than 70 g/ml during the whole cycles. The method not only may be adapted to treat soybean wastewater with high nitrogen, but also may be applied to treat other high nitrogen wastewater.
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| 关 键 词： | 脱硝作用 硝化作用 大豆加工废水 SBR 循环硫化床 废水处理技术 |
Alternating shortcut nitrification-denitrification for nitrogen removal from soybean wastewater by SBR with real-time control |
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| WANGShu-ying GAODa-wen PENGYong-zhen WANGPeng YANGQing.Alternating shortcut nitrification-denitrification for nitrogen removal from soybean wastewater by SBR with real-time control[J].Journal of Environmental Sciences,2004,16(3):380-383. |
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| Authors: | WANG Shu ying GAO Da wen PENG Yong zhen WANG Peng YANG Qing |
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| Institution: | Department of Environmental Engineering, Beijing Polytechnic University, Beijing 100022, China. |
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| Abstract: | A novel treating technology for nitrogen removal from soybean wastewater was studied. The process for nitrogen removal was achieved by alternating aeration and mixing, combined with real-time control strategies. Results showed that the COD and total nitrogen removal rates are more than 90% and 92% at COD and total nitrogen loads of 1.0 - 1.2 kg COD/(kgMLSS x d) and 0.20 - 0.27 kg TN/(kgMLSS x d), respectively. In addition, it could improve sludge settling property. SVI value is less than 70 g/ml during the whole cycles. The method not only may be adapted to treat soybean wastewater with high nitrogen, but also may be applied to treat other high nitrogen wastewater. |
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| Keywords: | real-time shortcut nitrification-denitrification ORP pH SBR |
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