摘要
目的研究一体式膜生物反应器(IMBR)膜过滤能量损失及膜污染随温度变化的影响.方法采用两套相同的IMBR实验装置做不同温度条件的对比实验,并引进了膜比压差和膜比压差增量的概念,在此基础上结合两个不同膜通量下的实验结果,对比不同温度条件下的膜过滤能量损失情况及膜清洗后的清水实验.结果在膜通量和其他操作条件一定的情况下,温度较高,膜过滤能量损失较小,温度的影响在膜通量为0 005(m·h-1)的条件下,要比膜通量为0 01(m·h-1)的条件下显著.以相同的实验方式进行膜清洗,清水试验的结果表明,在较高温度条件下运行的IMBR,其膜污染的可恢复程度较好.结论温度升高可以减缓膜污染进程,减轻膜污染程度,膜通量增大,温度的影响减弱;较高温度条件下,形成的污染可恢复程度较好.
In this article the concepts of unit pressure loss for membrane and the increment of unit pressure loss for membrane are introduced.On this foundation,the degree of energy loss of the water filtered through membrane of two temperature conditions was contrasted.By combining the test results,the findings show that if the membrane flux and other operation parameter is constant it is smaller at the higher temperature,but after membrane flux is enlarged,the influence of temperature weakened.The data of clear water filters experiment were carried on the linear recurrence with the slope representing the average unit pressure loss for membrane and this parameter was adopted to reflect the capability of being renewed of the polluted membrane,and a conclusion is therefore reached that the higher the temperature is,the bigger the capability of being recovered of the polluted membrane is.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
2005年第2期142-145,共4页
Journal of Shenyang Jianzhu University：Natural Science
基金
辽宁省自然科学基金资助项目(962126)
