| 浸入式超滤膜工艺稳定运行影响因素研究 |
| 摘要点击 2253 全文点击 1707 投稿时间：2008-03-27 修订日期：2008-04-21 |
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| 中文关键词 浸入式膜 膜污染 膜通量 横跨膜压差 |
| 英文关键词 immersed membrane membrane fouling membrane flux trans-membrane pressure |
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| 中文摘要 |
| 以确定浸入式超滤膜工艺稳定运行工况为目标，进行了混凝-浸入式超滤膜工艺处理滦河原水的中试研究.采用横跨膜压差（TMP）做为表征膜稳定运行的工艺参数，考察了膜通量、制水周期、原水水质条件的改变对膜工艺的影响.结果表明，采用浸入式膜处理滦河水时，膜通量为53.3 L/(m2·h)且制水周期为30 min时膜工艺运行稳定，能较好控制膜污染； 水温变化对膜工艺运行影响较大,低温期单个过滤周期TMP比高藻期增加了76%； EFM和化学清洗结合是一种有效地控制膜污染、强化稳定运行的措施. |
| 英文摘要 |
| Target at the steady operation state, a pilot-scale test on the treatment of Luanhe source water was carried out using the process of coagulation-immersed membrane. The effect of membrane flux and water making period and raw water quality was systematically studied by means of trans-membrane pressure (TMP). The results show that the coagulation-immersed membrane process can control membrane fouling better and keep a steady operation state when membrane flux is 53.3 L/(m2·h) and water producing period is 30 min. Water temperature change is one of the important factors, and the TMP of each filtration period can increase 76% from high temperature to low temperature raw water. Enhanced flux maintenance (EFM) integrated with chemical clean is a good control measure of membrane fouling. |
