| 固定化膜生物反应器处理焦化废水的运行特性 |
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| 引用本文： | 孙亮,李文英,徐英,冯杰.固定化膜生物反应器处理焦化废水的运行特性[J].中国给水排水,2008,24(13). |
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| 作者姓名： | 孙亮 李文英 徐英 冯杰 |
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| 作者单位： | 太原理工大学,煤科学与技术教育部和山西省重点实验室,山西太原,030024 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，教育部创新团队发展基金，教育部跨世纪优秀人才培养计划，山西省自然科学基金，山西省留学回国人员科研启动基金 |
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| 摘 要： | 针对采用传统生物法处理焦化废水时系统停留时间长、除污效率低的现状,将固定化技术引入膜生物反应器(MBR),并开展了处理COD为2598 mg/L、氨氮为378 mg/L的高浓度焦化废水研究.结果表明:其对COD的去除率为98.7%,对氨氮的去除率为95.03%,出水水质达到了国家一级排放标准;冲击负荷对反应器的处理效果影响较小,厌氧段的反应时间宜为14h,好氧段的较佳反应时间为10 h; pH值为7.5～8.5时对氨氮能保持较高的降解率;好氧段应保持较高的溶解氧浓度,反应8 h后宜减少曝气量以降低能耗;在反应器长期运行的过程中膜通量的衰减速度较慢,运行30d后膜通量下降了37.2%,且用水冲洗就可使膜通量得到基本恢复.
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| 关 键 词： | 焦化废水 膜生物反应器 固定化 膜污染 |
Characteristics of Immobilized-cell Membrane Bioreactor for Coking Wastewater Treatment |
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| SUN Liang,LI Wen-ying,XU Ying,FENG Jie.Characteristics of Immobilized-cell Membrane Bioreactor for Coking Wastewater Treatment[J].China Water & Wastewater,2008,24(13). |
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| Authors: | SUN Liang LI Wen-ying XU Ying FENG Jie |
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| Affiliation: | SUN Liang,LI Wen-ying,XU Ying,FENG Jie(Key Laboratory of Ministry of Education , Shanxi Province for Coal Science , Technology,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | In order to reduce the long retention time and improve pollutant removal efficiency of the traditional biological process in coking wastewater treatment, the immobilized-cell membrane bioreactor was adopted for treating the coking wastewater with COD of 2 598 mg/L and NH+4-N of 378 mg/L. The results show that the removal rates of COD and NH+4-N are 98.7% and 95.03% respectively. The effluent quality reaches the national first class discharge standard. Furthermore, the shock load has a slight effect on the p... |
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| Keywords: | coking wastewater membrane bioreactor immobilization membrane fouling |
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