| 膜-复合式生物反应器组合系统操作条件及稳定运行特性 |
| 摘要点击 864 全文点击 2072 投稿时间：1997-05-17 |
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| 中文关键词 膜分离 复合式生物反应器 悬浮污泥浓度 通透量 |
| 英文关键词 domestic wastewater hybrid bioreactor plate ultrafiltration membrane suspended sludge concentration flux of membrane |
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| 中文摘要 |
| 对膜-复合式生物反应器的操作条件和稳定运行特性进行研究,采用平板式聚丙烯腈超滤膜进行实验,适宜操作压力为0.15MPa;适宜膜面流速为1.4-1.7m/s;HRT至少可以控制在4h;悬浮污泥浓度是影响膜通透量的重要因素之一,适宜值为2-2.5g/L左右。系统长期稳定运行可达60d以上,COD和NH3-N去除率均可达95%以上,运行过程中未发现微生物代谢产物的明显积累,但污泥的活性有所降低。 |
| 英文摘要 |
| Operation parameters and wastewater treatment characteristics of membrane hybrid bioreactor were studied using plate ultrafiltration membrane of polyacrylonitrile.The operation parameters were obtained at pressure about 0 15MPa,crossflow velocity 1.4—1.7m/s,HRT about 4h,suspended sludge concentration about 2g/L.The membrane hybrid bioreactor could be operated stably more than 60 days at COD and NH3-N removal over 95% without the remarkable accumulation of the metabolite except a little drop of the activity of microorganism. |
