Evaluating backwashing efficiency of polycarbonate (PC) membrane fouled by protein and yeast

This collection is the result of an investigation into the backwashing efficiency of polycarbonate (PC) membrane fouled by two types of organic foulants, protein and yeast. In this experiment, polycarbonate (PC) membrane was used to filter those organic foulants from suspensions in a dead-end stirred cell. The organic foulants were stained with fluorescent dyes before filtration. After filtration, the PC membrane was backwashed. Consequently, a stack of images were captured from the fouling layers on the PC membrane surface using confocal laser scanning microscope (CLSM) and its associated image acquisition software. It contains image data of polycarbonate (PC) membranes' fouling layer when two types of organic foulants (protein and yeast) present. By comparing with the same membrane without backwashing, the efficiency of backwashing was computed. This data collection would be useful to researchers evaluating the backwashing efficiency of PC membrane in order to optimize frequency and operational conditions of backwashing by membrane materials and by water.

本数据集源自一项针对两种有机污染物——蛋白质与酵母菌——污染的聚碳酸酯（polycarbonate, PC）膜反冲洗效率的研究。本次实验采用聚碳酸酯（PC）膜在死端搅拌池中对悬浮液中的上述有机污染物进行过滤，过滤前先利用荧光染料对有机污染物进行染色标记。过滤完成后，对该PC膜实施反冲洗处理；随后借助共聚焦激光扫描显微镜（confocal laser scanning microscope, CLSM）及其配套图像采集软件，采集PC膜表面污染层的序列图像。本数据集涵盖两种有机污染物（蛋白质与酵母菌）污染场景下聚碳酸酯（PC）膜污染层的图像数据，通过与未经过反冲洗的同规格膜片进行对照，可计算得出反冲洗效率。该数据集可为致力于评估聚碳酸酯（PC）膜反冲洗效率的研究人员提供支撑，助力其优化膜材料水处理场景下反冲洗的频次与运行工况。