采用颗粒检测技术监测和控制膜滤水质

Monitoring and Control of Membrane Filtration Water Quality by Particle Monitoring Technique

介绍了超滤膜去除颗粒物的特点,指出保证膜出水水质监测和控制的关键指标是颗粒物含量,分析了给水处理领域几种颗粒检测技术的应用特点,对浊度、颗粒计数值、颗粒综合指数及微生物指标的关系进行研究和分析表明,颗粒数是超滤膜出水水质的关键性检测指标,可代替或补充浊度指标.采用颗粒检测仪代替浊度仪来监测和控制超滤膜装置的运行,可为超滤膜装置的有效运行和优质水的生产提供安全保障.

The feature of ultrafiltration to remove particle matters is introduced in this article. It is pointed that particle contents are key monitoring and control index to ensure treated water quality of membrane filtration. Particle monitoring techniques are briefly illustrated and the application features are analyzed with several particle monitoring techniques. Correlations of turbidity, particle counting value, multiple index of particle and microbe index are studied and analyzed. The results show that particle number is the key monitoring indicator of treated water quality of ultrafiltration. It is suggested that the particle index can be applied to replacing or replenishing turbidity index, and particle monitors can be utilized to replace or replenish turbidity meters to monitor and control operation of ultrafiltration equipment in practical applications, in order to pro- vide safety to effective operation of ultrafiltration and production of high-quality water.