| 城市污水处理工艺对噬菌体的去除效果 |
| 摘要点击 1357 全文点击 1342 投稿时间：2005-01-28 修订日期：2005-03-31 |
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| 中文关键词 水处理工艺 SC噬菌体 F-RNA噬菌体 肠道病毒 指示生物 污水回用 |
| 英文关键词 wastewater treatment process somatic coliphages F-specific bacteriophages enteroviruses indicators water reclamation |
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| 中文摘要 |
| 测定了北京市3座城市污水处理厂各处理单元出水中的SC噬菌体和F-RNA噬菌体浓度.进水中SC噬菌体和F-RNA噬菌体浓度范围分别为6.25×103～1.34×104PFU·mL-1和2.4×10～2.4×103PFU·mL-1,经过处理,上述2类噬菌体的总去除率分别为72.45%～99.89%和57.84%～93.06%,低于对粪大肠菌的处理效果.生物曝气工艺对噬菌体的去除效率最高,深度处理中的砂滤工艺对噬菌体的去除作用不明显.根据测定的F-RNA噬菌体浓度预测水中肠道病毒的浓度,结果显示生活污水经常规处理和深度处理后仍含有0.65～15.8 PFU·L-1的肠道病毒. |
| 英文摘要 |
| The concentrations of somatic coliphages(SC) and F-specific RNA bacteriophages in effluent of three wastewater treatment plants in Beijing city were detected.Somatic coliphages and F-RNA bacteriophages in source wastewater were 6.25×103～1.34×104 PFU·mL-1and 2.4×10～2.4×103 PFU·mL-1 respectively,and the corresponding average removal rates were 72.45%～99.89 % and 57.84%～93.06% by the wastewater processes,and which were lower than that of faecal coliforms.Biological aerated stage appeared to be the most efficient step in reducing the numbers of phages in wastewater,but not obviously in sand filter.The result of predicted concentrations of enteroviruses according to concentrations of F-RNA bacteriophages in water show that there are 0.65～15.8 PFU·L-1 of the enteroviruses in final effluent. |
