纳滤深度处理技术在饮用水厂的应用与展望

Application and prospect of nanofiltration deep treatment technology in drinking water plant

随着水质标准日趋严格和居民对饮用水品质要求的不断提升,饮用水厂提质改造势在必行。纳滤作为一项物理处理工艺,不仅对污染物去除效果好,而且绿色清洁、工艺设计灵活,在各规模饮用水厂中均具有良好的应用前景。因此,总结了该技术对天然水中常见污染物及新兴污染物的去除效果,从工厂化应用的角度对比了多种纳滤组合工艺的处理效果和应用场景,并批判性讨论了纳滤技术的局限性和不足,最后对纳滤技术进一步的研究方向提供了建议与思考,以期给纳滤工艺的应用提供更多理论依据和技术支撑。

With water quality standards become stricter and the continuous improvement of drinking water quality requirements of residents,it is imperative to improve the quality of drinking water plants.As a physical treatment technology,nanofiltration is not only effective in removing pollutants,but also green,clean and flexible in process design.It has a good application prospect in drinking water plants of various scales.This paper summarizes the removal effect of common pollutants and emerging pollutants in natural water by this technology.The treatment effects and application scenarios of several combined nanofiltration processes are compared from the point of view of industrial application in the review.The limitations and deficiencies of nanofiltration technology are critically discussed.Finally,suggestions and reflections are provided for the further research of nanofiltration technology,so as to provide more theoretical basis and technical support for the popularization of nanofiltration technology.