The relationship between membrane and foulant in filtration of high DOC and hardness waters

高DOC和硬度水过滤中膜与污染物的关系

• 批准号: 490884-2015
• 负责人: Gorczyca, Beata
• 金额: $ 0.57万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=601553
• 关键词: relationship; between; membrane; foulant; filtration

Many water facilities in Canada are not able to meet the regulations governing potentially carcinogenic chlorine disinfection by-products- Trihalomethanes (THMs). Nanofiltration has become widely used in potable water treatment as a method that can meet increasingly stringent water quality regulations and THMs standards. However, a major problem with this approach is nanofilter fouling, which is loosely defined as the loss of performance and increase in plant operation cost due to formation of undesirable deposits (i.e. fouling layer) on the membrane surface. Many surface water sources, especially in the Canadian Prairies, contain major membrane foulants in high concentrations. Therefore, understanding the mechanisms of fouling and fouling control is of utmost interest to the designers and owners of water treatment systems located in this region. The overall objective of the proposed research is to control membrane fouling and significantly reduce operating costs of membrane systems by increasing their operational life.

加拿大的许多供水设施无法满足关于潜在致癌的氯消毒副产品-三卤甲烷（THMs）的法规。纳滤作为一种可以满足日益严格的水质法规和THMs标准的方法，已广泛用于饮用水处理。然而，这种方法的主要问题是纳米过滤器结垢，其被松散地定义为由于在膜表面上形成不期望的沉积物（即结垢层）而导致的性能损失和工厂操作成本增加。许多地表水源，特别是在加拿大大草原，含有高浓度的主要膜污染物。因此，了解结垢和结垢控制的机制是位于该地区的水处理系统的设计者和业主的最大兴趣。提出的研究的总体目标是控制膜污染，并显着降低膜系统的运行成本，通过增加其运行寿命。