| 固定化曝气生物滤池处理采油废水 |
| 摘要点击 1269 全文点击 1662 投稿时间：2005-04-26 修订日期：2005-08-03 |
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| 中文关键词 固定化 曝气生物滤池 采油废水 |
| 英文关键词 immobilization biological aerated filter oil field wastewater |
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| 中文摘要 |
| 采用一种特殊载体固定复合微生物B350M在曝气生物滤池反应系统中处理采油废水.废水中的盐度>0.5%,N、P营养缺乏,有机物浓度较低.在HRT为4h、COD容积负荷为1.07 kg/(m3·d)的条件下,小试反应装置稳定运行142d,处理效果良好,石油类、TOC、COD和H2S的平均降解效率分别达到90.5%、74.4%、85.6%和100%.GC-MS分析表明,进水中含有机物27种,其中烷烃类23种,芳烃类4种.此反应系统可以将大分子量烷烃类物质(C18H38至C28H58),尤其是其中的支链烷烃切碎形成小分子量物质,并有效地处理菲等多环芳烃.反应系统中,生态多样性丰富,载体为微生物提供了良好的水、气环境,抵御盐度、有机污染物的毒害作用,并可以固定丝状菌,因而避免出现污泥膨胀,出水SS过高等影响出水水质的情况. |
| 英文摘要 |
| A special kind of carrier was used to immobilize effective microorganisms B350M in a biological aerated filter(BAF) react system for treatment of oil field wastewater,which is of salinity >0.5%,lack of N and P,and contains low organic matter.Through the biodegradation system operated for 142d,the react system can achieve average degradation efficiency 90.5%、74.4%、85.6%、100% for oil,TOC,COD and H2S,when HRT was 4h and COD volumetric load was 1.07(kg/(m~3·d).) GC-MS results show that the organic substance in wastewater contain 27 different kind substances,a majority(23) of alkane and a minority(4) of aromatic substances.C14H30to C28H58 in influent could be decomposed into small molecular substance efficiently,especially the C18H38 to C28H58,and also polycyclic aromatic hydrocarbons(PAHs) such as Phenanthrene.The react system had a good diversity,because the carriers provide agreeable air and water condition for microorganisms,to resist high salinity and toxic pollutant.Filamentous microorganisms were observed in a great deal and will not cause foaming and bulking in BAF reactor by immobilization. |
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