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.

本数据集为针对两类有机污染物（蛋白质与酵母）污染的聚碳酸酯（polycarbonate, PC）膜反冲洗效率的研究成果。本实验采用聚碳酸酯（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，已通过荧光染料对有机污染物完成染色标记。过滤完成后，对PC膜实施反冲洗处理。随后，借助激光扫描共聚焦显微镜（confocal laser scanning microscope, CLSM）及其配套图像采集软件，采集得到PC膜表面污染层的系列堆叠图像。本数据集涵盖两类有机污染物（蛋白质与酵母）污染状态下PC膜污染层的图像数据。通过与未进行反冲洗的同批次膜进行对照，可计算得到反冲洗效率。本数据集可用于评估PC膜反冲洗效率的相关研究，助力研究者优化膜材料水处理反冲洗的频率与运行工况。