| 合成氨废水短程反硝化特性研究 |
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| 引用本文： | 李妍,李泽兵,马家轩,王晓毅,赵白航,李军.合成氨废水短程反硝化特性研究[J].环境科学,2012,33(6):1902-1906. |
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| 作者姓名： | 李妍 李泽兵 马家轩 王晓毅 赵白航 李军 |
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| 作者单位： | 1. 北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京,100124
2. 河南省化工研究所有限责任公司,郑州,450052 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(2009ZX07210-002); 北京市自然科学基金项目(8122005); 北京市教委重点项目(KZ201110005008) |
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| 摘 要： | 取自强化A/O工艺处理合成氨废水中试装置的活性污泥,在pH、碳源和温度均不为限制性因素条件下,短程反硝化和全程反硝化均为零级反应.结果表明,相对于全程反硝化,短程反硝化可以节约14.1%的碳源和55.7%的反硝化时间;初始NO2--N为36.82 mg.L-1时反硝化最快,比反硝化速率（以NO2--N/VSS计）为0.509 g.（g.d）-1;pH为7.5时反硝化速率最快,实际运行中应避免缺氧区pH〉9;选择性增殖的反硝化菌对甲醇和乙醇形成了良好的适应性,却对葡萄糖和乙酸等其它低分子易降解有机物产生了不适应性.
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| 关 键 词： | 合成氨废水 短程反硝化 比反硝化速率 碳源 |
| 收稿时间： | 2011/8/24 0:00:00 |
| 修稿时间： | 2011/11/22 0:00:00 |
Characteristic Research of Shortcut Denitrification in Synthetic Ammonia Industrial Wastewater Treatment Process |
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| LI Yan,LI Ze-bing,MA Jia-xuan,WANG Xiao-yi,ZHAO Bai-hang and LI Jun.Characteristic Research of Shortcut Denitrification in Synthetic Ammonia Industrial Wastewater Treatment Process[J].Chinese Journal of Environmental Science,2012,33(6):1902-1906. |
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| Authors: | LI Yan LI Ze-bing MA Jia-xuan WANG Xiao-yi ZHAO Bai-hang and LI Jun |
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| Institution: | Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124,China;Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124,China;Henan Chemical Industry Research Institute Co. Ltd., Zhengzhou 450052, China;Henan Chemical Industry Research Institute Co. Ltd., Zhengzhou 450052, China;Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124,China;Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124,China |
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| Abstract: | Active sludge was from a pilot-scale synthetic ammonia industrial wastewater treatment plant with a strengthen anoxic-oxic (A/O) technology. The zero order kinetic model was suit for describing shortcut and complete denitrification process.Experimental results showed that shortcut denitrification could reduce 14.1% carbon source consumption and 55.7% denitrification time, respectively, comparing with complete denitrification. The maximum specific denitrification rate was 0.509 g·(g·d)-1 with an initial NO2--N concentration of 36.82 mg·L-1 and pH 7.5. In the industrial practice, it must be avoided pH higher than 9.0 in anoxic zone for industrial treatment. Replication-selective denitrifying bacteria showed a strong adaptability to methanol and ethanol, but showed maladaptation to other small molecular and easily biodegradable organics, such as glucose and acetic acid. |
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| Keywords: | synthetic ammonia wastewater shortcut denitrification specific denitrification rates carbon source |
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