Effects of operative conditions on membrane fouling of jet loop membrane bioreactor     

徐高田  孙佳琳  秦哲  阮慧娟 《上海大学学报(英文版)》2010,14(4):251-254

The orthogonal experiments, which involves three factors： aeration intensity, suction time and suction suspended time, were designed to research membrane fouling of jet loop membrane bioreactor （JLMBR）. Experimental results indicate that increasing aeration intensity, reducing suction time and increasing suction suspended time all could mitigate membrane fouling effectively. However excessive aeration intensity, too short suction time and excessive suction suspended time were bad for bioreactor running. The optimal aeration intensity, suction time and suction suspended time were 0.75 1.00 m3/（m2.h）, 8 -10 min and 4 -5 min, respectively. The three factors all had effect on membrane pollution rate, while the suction time was the most important one and followed by aeration intensity and suction suspended time. It also indicates that, comparing with traditional submerged membrane bioreactors, JLMBR had lower membrane pollution rate.  相似文献   

“微时代”大学生思想政治教育工作探究及路径分析     

阮慧娟 《黑龙江教育学院学报》2015,(3):85-86

大学生的思想政治教育是我国高等教育中的重要内容。当今社会,带有鲜明的网络特征的“微时代”是发展主流。从与时俱进的教育理念来看,当代大学生的思想政治教育也应该跟上历史的发展潮流,力求在“微时代”下创新教育方式方法,积极应对“微时代”给教育工作带来的挑战。分析了“微时代”对大学生思想政治教育工作的影响,并提出了“微时代”背景下开展大学生思想政治教育工作的路径,以期能够为当代大学生思想政治教育工作有所裨益。  相似文献   

摄入动物肝脏,风险与收益并存     

小怡  阮慧娟 《家教世界》2022,(1):22-23

正方:肝脏营养丰富,尤其是含有较多的维生素A、铁质等,应该成为孩子辅食的一部分. 反方:肝脏内有很多毒素、动物的肝脏胆固醇高,而且吃多了还存在维生素A过量的风险. 似乎摄入肝脏是一件风险与收益并存的事儿呢! 肝脏作为好的营养来源是有"条件"的 其实,如果去细究相关文献或指南的措辞时,我们可以发现,通常在推荐肝脏摄入时,...  相似文献