| 低浓度氯苯废水在曝气生物填料塔中的降解 |
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| 引用本文： | 邹华生,潘学敏.低浓度氯苯废水在曝气生物填料塔中的降解[J].环境科学与技术,2009,32(3). |
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| 作者姓名： | 邹华生 潘学敏 |
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| 作者单位： | 华南理工大学化工与能源学院,广东,广州,510640 |
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| 基金项目： | 广东省科技攻关项目，广州市科技攻关项目 |
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| 摘 要： | 研究了曝气生物填料塔处理难生化降解化合物氯苯的特性,得出初始浓度为15mg/L的氯苯废水的适宜运行条件为:溶解氧约为5.5mg/L,水力停留时间约为5h,葡萄糖浓度为800mg/L,在此条件下单独用生物填料塔处理60h降解率可达16.80%。并考察了氯苯废水用超声预处理后生物降解与直接用生物降解比较,结果表明超声预处理可大大提高氯苯的可生物降解性,在30kHz+60kHz+100kHz的频率组合下超声预处理2h后再生物降解38h,氯苯的降解率可达70.12%。
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| 关 键 词： | 氯苯 降解 曝气生物填料塔 超声预处理 |
Degrading Low Concentration Chlorobenzene in Wastewater by Aerobic Bio-packing Tower |
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| ZOU Hua-sheng,PAN Xue-min.Degrading Low Concentration Chlorobenzene in Wastewater by Aerobic Bio-packing Tower[J].Environmental Science and Technology,2009,32(3). |
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| Authors: | ZOU Hua-sheng PAN Xue-min |
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| Institution: | ZOU Hua-sheng,PAN Xue-min (School of Chemical and Energy Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Bio-degradation experiment of chlorobenzene,the refractory compound,is run on a bench-scale aerobic packing tower with an initial concentration of 15mg/L in water. Under a favorable condition,it is showed that chlorobenzene is broken down by 16.8%. Furthermore,ultrasonic pre-treatment can greatly enhance its degradation in the packing tower——up to 70.12% removal. |
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| Keywords: | chlorobenzene aerobic bio-packing tower ultrasonic pre-treatment |
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