| 同步硝化反硝化脱氮模型及动力学分析 |
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| 引用本文： | 方茜,荣宏伟,张立秋,杜馨.同步硝化反硝化脱氮模型及动力学分析[J].广州大学学报(自然科学版),2009,8(2). |
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| 作者姓名： | 方茜 荣宏伟 张立秋 杜馨 |
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| 作者单位： | 广州大学土木工程学院,广东广州,510006 |
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| 基金项目： | 广东省自然科学博士启动基金资助项目 |
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| 摘 要： | 采用SBR处理模拟低碳污水,考察了同步硝化反硝化(SND)过程中氮的变化规律,在此基础上结合硝化、反硝化动力学和物料平衡原理,建立了SND过程的动力学模型.结果表明,SND过程中的硝酸盐饱和常数KD高于常规单级反硝化过程的常数.由动力学分析可知,反硝化过程是SND过程的控制步骤,保持较高的硝酸盐浓度或梯度有利于稳定的SND过程.
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| 关 键 词： | 同步硝化反硝化 数学模型 动力学分析 |
The nitrogen removal model and kinetic analysis of simultaneous nitrification and denitrification |
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| FANG Qian,RONG Hong-wei,ZHANG Li-qiu,DU Xin.The nitrogen removal model and kinetic analysis of simultaneous nitrification and denitrification[J].Journal og Guangzhou University:Natural Science Edition,2009,8(2). |
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| Authors: | FANG Qian RONG Hong-wei ZHANG Li-qiu DU Xin |
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| Institution: | School of Civil Engineering;Guangzhou University;Guangzhou 510006;China |
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| Abstract: | Changes of nitrogen in simultaneous nitrification and denitrification(SND) were investigated in SBR treating low carbon synthetic wastewater.Based on nitrifying kinetics,denitrifying kinetics and mass balance,the kinetic model of SND was established.The results indicated that nitrate saturation coefficient KD in SND is bigger than in conventional single stage denitrification.It can be concluded that denitrification is the control step of SND and the high nitrate concentration or gradient is of advantage for... |
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