| 生物法-人工湿地工艺处理采油废水及其有机物的降解特性 |
| 摘要点击 2364 全文点击 2406 投稿时间：2009-03-24 修订日期：2009-05-07 |
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| 中文关键词 采油废水 水解酸化 好氧 人工湿地 气相色谱-质谱 |
| 英文关键词 oilfield produced wastewater hydrolysis acidification aerobic constructed wetland GC-MS |
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| 中文摘要 |
| 采用水解酸化-好氧-人工湿地和水解酸化-人工湿地2种工艺流程处理油田某联合处理站经隔油、混凝处理的采油废水，并运用气相色谱-质谱(GC-MS)技术研究采油废水处理过程中有机物的迁移降解规律.结果表明，水解酸化(水力停留时间HRT=20 h)-好氧(HRT=10 h)-人工湿地(HRT=2 d)与水解酸化(HRT=20 h)-人工湿地(HRT=4 d)，2种工艺的出水水质都能达到COD≤80 mg/L、NH+4-N≤15 mg/L.GC-MS分析结果表明，水解酸化 |
| 英文摘要 |
| Hydrolysis acidification-aerobic-constructed wetland process and hydrolysis acidification-constructed wetland were used to treat oilfield produced water after the pretreatment of oil separation-coagulation. Gas chromatography-mass spectrometry was used to study the degradation characteristics of organic substances during the treatment process. The results showed that COD and ammonia nitrogen of both the two process effluents were below 80 mg/L and 15 mg/L, respectively, when HRT was 20 h for hydrolysis acidification, 10 h for aeration and 2 d for constructed wetlands or when HRT was 20 h for hydrolysis acidification and 4 d for constructed wetland. The results of GC-MS analysis showed that biodegradability of the oil produced water was significantly improved in hydrolysis acidification. Substantial removal of benzene compounds was achieved in aerobic and constructed wetland. |
