Mitigating tertiary membrane fouling under cold weather conditions

膜技术越来越多地被用于生产高质量的处理废水，以排放到敏感水体或用于再利用。膜污染是降低膜处理能力和增加运行费用的最具挑战性的因素之一。特别是，位于生物处理过程下游的膜已被发现在寒冷的天气条件下表现出高水平的污染。该项目将采用历史数据审查、现场规模抽样和实验室规模测试相结合的方法，试图了解导致寒冷天气污垢的机制。将测试一系列减轻污染的策略，以确定在寒冷天气条件下减少膜污染的首选策略。**

Membrane technologies are increasingly being employed to produce high quality treated wastewaters for discharge to sensitive waterbodies or for reuse purposes. Membrane fouling is one of the most challenging factors that reduces membrane capacity and increases operating expenses. In particular, membranes that are located downstream of biological treatment processes have been found to demonstrate high levels of fouling under cold weather conditions. This project will employ a combination of historical data review, field scale sampling and bench scale testing to seek to understand the mechanisms leading to cold weather fouling. A selection of fouling mitigations strategies will be tested to identify a preferred strategy for reducing membrane fouling under cold weather conditions.**