原水颗粒物对超滤膜通量的影响及其污染机理

摘要

随着原水水质的日益恶化和水厂出水指标逐渐严苛，自来水厂常规处理工艺面临着严峻的考验与挑战。超滤膜技术在现有水厂技术改造及深度处理扩建领域具有广泛的应用空间和价值。不同类型、浓度的原水颗粒物对超滤膜通量及污染机理的影响存在明显的差异。该文针对原水颗粒物的类型和浓度，开展系统的试验研究与分析，以便为超滤膜在自来水厂提标改造工程中的应用提供理论依据。%As raw water quality deteriorates and drinking water standards enhances gradually,traditional water treatment process of WTP is facing severe challenges. Therefore,within the field of technical reconstruction,UF membrane technique would have a high potential and value to be applied. Different types and concentration of particles in raw water impact the membrane flux and fouling differently. In this paper,the effect of different types and concentration of particles in raw water on membrane flux and fouling was investigated in order to lay a theoretic foundation for the application of UF membrane in the field of WTP technical reconstruction.