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53.3L/(m2·h)且制水周期为30min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.
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.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2008年第10期2773-2776,共4页
Environmental Science
基金
国家高技术研究发展计划(863)项目(2002AA601140)
天津市科技创新基金项目(05FZZDSH00500)
关键词
浸入式膜
膜污染
膜通量
横跨膜压差
immersed membrane
membrane fouling
membrane flux
trans-membrane pressure
