| 混合液回流比对MSBR工艺强化生物脱氮的影响 |
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| 引用本文： | 邓仁健,张金松,曲志军,杨靖波. 混合液回流比对MSBR工艺强化生物脱氮的影响[J]. 环境污染治理技术与设备, 2013, 0(10): 3731-3736 |
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| 作者姓名： | 邓仁健 张金松 曲志军 杨靖波 |
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| 作者单位： | [1]哈尔滨工业大学深圳研究生院环境科学与工程研究中心,深圳518055 [2]湖南科技大学土木工程学院,湘潭411201 [3]深圳市水务（集团）有限公司,深圳518030 |
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| 基金项目： | 国家重大水专项资助项目（2009ZX07423-003-1）;深圳水务集团资助项目;国家自然科学基金资助项目（51174090） |
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| 摘 要： | 针对二级城镇污水处理厂提标改造时出水氮、磷指标很难同时达到一级A标准（GB18918-2002）的情况，提出了改良式序批式反应器（MSBR）的强化生物脱氮运行模式，并通过生产性实验研究了MSBR工艺混合液回流比（6单元回流至5单元）对出水COD、TP、NH4＋-N及TN的影响。实验结果表明，MSBR工艺混合液回流比对COD、NH4＋-N去除基本上没有影响，但对TN和TP去除有影响。当回流比从0提高1和1．5时，TP去除效率分别降低了5．85％和4．06％；而TN去除效率分别提高了10．46％和7．87％，同时出水TN可稳定达到一级A标的要求。从控制运行能耗和脱氮效果的角度综合考虑，该污水厂强化生物脱氮的混合液回流比控制在1是比较合适的。
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| 关 键 词： | 改良式序批式反应器（MSBR） 强化生物脱氮 混合液回流比 |
Influence of mixed liquor recycle ratio on enhanced bio-denitrification in modified sequencing batch reactor process |
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| Deng Renjian,Zhang Jlnsong,Qu Zhijun,Yang Jingbo. Influence of mixed liquor recycle ratio on enhanced bio-denitrification in modified sequencing batch reactor process[J]. Techniques and Equipment for Environmental Pollution Control, 2013, 0(10): 3731-3736 |
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| Authors: | Deng Renjian Zhang Jlnsong Qu Zhijun Yang Jingbo |
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| Affiliation: | 1. Environmental Science and Engineering Research Center, Harbin Institute of Technology Shenzhen Graduate School,Shenzhen 518055, China ; 2. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; 3. Shenzhen Water (Group)Co. Ltd. ,Shenzhen 518030,China) |
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| Abstract: | A full-scale modified sequencing batch reactor（MSBR）process was proposed to enhance total ni- trogen （TN） removal performance from municipal wastewater in order to meet the effluent limit for Grade 1A sew- age treatment plant in China（GB18918-2002）. The full-scale experiment investigated the influence of mixed liq- uor recycle ratio（from 6 cell recycle to 5 cell）on the removal of chemical oxygen demand （COD） , total phos- phorus（TP）, ammonia nitrogen （NH4＋-N） and TN in MSBR process. The experimental results showed that mixed liquor recycle ratio did not affect removal of COD and ammonia, but affected the removal of TN and TP. When the mixed liquor recycle ratio increased from 0 to 1 and 1.5, TP removal efficiency decreased 5.85% and 4.06% , respectively, however, TN removal efficiency increased 10.46% and 7.87% , respectively, and efflu- ent TN can meet the standard requirement. Taking both energy consumption and nitrogen removal efficiency into consideration, the optimized mixed liquor recycle ratio of MSBR process was 1. |
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| Keywords: | modified sequencing batch reactor（MSBR） enhanced bio-denitrification mixed liquor recycle ratio |
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