净水技术2024，Vol.43Issue(7)：83-91,9.DOI:10.15890/j.cnki.jsjs.2024.07.010
颗粒物在净水工艺中的分布及迁移变化规律
Distribution and Migration Change Law of Particles in Water Purification Process
摘要
Abstract
As one of the potential pollutants,particles are currently threatening the safety of water supply.Based on the actual operation of the water treatment plant and the pilot test data,this paper started with the distribution and migration of particles in the potable water treatment unit,explored the seasonal variation of the quantity and granulometric distribution of particles.Thermal gravimetric analyzer and Fourier ion cyclotron resonance mass spectrometer were used to investigate the changes in the composition of particles along the process.It was found that the quantity and components of particles in the raw water changed seasonally,the particles concentration in summer was significantly higher than that in winter.In terms of the composition of particulate matter,peptides were more abundant in summer,and nitrogen-containing organic matter was rich in lipids and protein in winter;The proportion of particles with different sizes changed slightly during the process,mainly less than 5 μm,of which 2～5 μm accounted for the highest proportion,and the proportion of large particle size particles greater than 20 μm was very small.Coagulation and sedimentation process is the main removal unit for particles,the sand filter as the last line of defence,the ability of activated carbon filter to remove the number of particles is unstable,but it shows a good performance in reducing the content of organic matter attached to the particles.关键词
颗粒物浓度/季节变化/南水北调/有机物浓度/粒径分布Key words
particle concentration/seasonal variation/South-to-North Water Diversion/concentration of organic matter/particle size distribution分类
土木建筑引用本文复制引用
谢若溦,邹放,徐岩,汪洋,韩梅,苑蕊..颗粒物在净水工艺中的分布及迁移变化规律[J].净水技术,2024,43(7):83-91,9.基金项目
国家重点研发计划项目(2021YFC3200904) （2021YFC3200904）
