| 生物亲和亲水磁性填料在污水生物处理中的应用 |
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| 引用本文： | 戴松林,罗晓虹,黄奥彦,邓耀明.生物亲和亲水磁性填料在污水生物处理中的应用[J].环境污染与防治,2009,31(5). |
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| 作者姓名： | 戴松林 罗晓虹 黄奥彦 邓耀明 |
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| 作者单位： | 1. 东莞市环境科学研究所,广东,东莞,523009
2. 东莞市环境保护监测站,广东,东莞,523011 |
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| 摘 要： | 采用添加生物亲和亲水物质、活性炭及磁粉并磁化的改性聚丙烯填料,进行挂膜和模拟污水生物降解试验.结果发现,普通聚丙烯填料改性后,水滴静态接触角降低22%,含水率提高3～5倍;改性聚丙烯填料比普通聚丙烯填料具有更快的挂膜速度和更高的COD降解率,并能承受更高的气液比以及气流和水流的冲击.改性聚丙烯填料的挂膜期从普通聚丙烯填料的7 d缩短为3 d;将初始COD为500 mg/L的模拟污水完全降解,改性聚丙烯填料需10.5 h,而普通聚丙烯填料则需22.5 h;在连续处理的操作方式下,当气液比为40:1时,改性聚丙烯填料的COD降解率达到最大,为99%,而普通聚丙烯填料则在气液比为30:1时,达到最大的COD降解率,为79%.
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| 关 键 词： | 生物亲和性 亲水性 模拟污水 生物填料 |
Performance of contact oxidation process employing bacteria attachable,hydrophilic and magnetic polypropylene packing |
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| Dai Songlin,Luo Xiaohong,Huang Huanyan,Deng Yaoming.Performance of contact oxidation process employing bacteria attachable,hydrophilic and magnetic polypropylene packing[J].Environmental Pollution & Control,2009,31(5). |
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| Authors: | Dai Songlin Luo Xiaohong Huang Huanyan Deng Yaoming |
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| Institution: | 1.Dongguan Research Institute of Environmental Science;Dongguan Guangdong 523009;2.Dongguan Environmental Protection Monitoring Station;Dongguan Guangdong 523011 |
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| Abstract: | The polypropylene packing material was modified to make it more ready for bacteria attachment,hydrophilic and magnetic with a permanent magnet.The performance of the contact aeration bioreactors with packing elements of the raw and modified polypropylene was compared in terms of the time it took for the reactors to attain the stable treatment,organic reduction rate,water retention,and packing geometry.The modified packing elements had a 22% smaller surface contact angle,a 3-5 fold increase in water retentio... |
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| Keywords: | biological affinity hydrophilicity synthesized wastewater biofilm packing |
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