| 嗜盐菌强化生物活性炭处理不同盐浓度采油废水的研究 |
| 摘要点击 2635 全文点击 1349 投稿时间：2006-10-31 修订日期：2007-01-20 |
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| 中文关键词 采油废水 生物活性炭 嗜盐菌 |
| 英文关键词 oilfield produced wastewater biological activated carbon halophile |
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| 中文摘要 |
| 研究生物活性炭对于不同水质、不同盐浓度采油废水的适应性及处理情况.实验采用COD、UV２５４ 2种参数表征水中有机物的综合指标，通过测定呼吸速率（oxygen uptake rate, OUR）随时间变化曲线确定活性炭上生物膜的生长与稳定性.结果表明，驯化期间随着水中采油废水比例的不断加大，生物膜上微生物的活性呈现降低、恢复到稳定的变化过程.经嗜盐菌强化后的生物活性炭对于胜利油田地区乐安现场采油废水和现河首站采油废水有着较好的处理效果，水力停留时间为5 h时，COD去除率可分别达到64.86%、53.62%，UV２５４也随处理时间得到不同程度的去除.不同盐浓度下乐安现场采油废水的处理结果说明，对于不受高盐浓度影响或影响较小的微生物，如果水质相同，在较低盐浓度范围内的盐浓度的改变基本不影响其活性，盐浓度1.0%～3.0%范围内COD的去除率在64.86%～66.67%.对于相同或近似含盐量的不同水质采油废水，水中COD含量差异对生物处理效果存在影响. |
| 英文摘要 |
| The treatment of oilfield produced wastewater with different qualities and different salinities were carried out using halophile enhanced biological activated carbon. COD, UV２５４ were detected as the index to indicate the efficiency of oilfield produced wastewater treatment. Oxygen Uptake Rate (OUR) was used to determine the activity of biofilm living in the activated carbon. The activity of biofilm presents a trend that is from reducing, resuming, to stabilizing with increasing of the proportion of oilfield produced wastewater. With HRT of 5 h, the removal rate of COD of Le'an and Xianhe oilfield produced wastewater achieves 64.86% and 53.62%, respectively. UV２５４ is partly removed, too. For Le'an oilfield produced wastewater with different salinities from 1.0% to 3.0%, the removal rates of COD are between 64.86% and 66.67%. The results illuminate that for the successfully domesticated microorganisms, only salinity's changing will not make distinct impact on them if the qualities of wastewater are not changed. The difference of COD in oilfield produced wastewater is the primary factor that makes influence on treatment effect for the different water quality. |
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