饮用水处理用活性炭反冲膨胀率测定与研究  

Measurement of the backwashing expansion rate of activated carbon used for drinking water treatment

作　　者：解强[1] 刘德钱 冯良[1] 邓锋[1,2] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]贵州工程应用技术学院化学工程学院,贵州毕节551700

出　　处：《苏州科技大学学报（自然科学版）》2017年第1期55-60,共6页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：国家自然科学基金资助项目(20776150);中央高校基本科研业务费资助项目(2009KH10)

摘　　要：反冲膨胀率是饮用水深度处理厂活性炭滤池设计及运行的重要参数。论文利用自行搭建的活性炭反冲膨胀率测量装置测定了太西煤基1.5 mm柱状炭、10×20目柱状破碎炭的反冲膨胀率,采用Wojciech法,并改进了冲洗强度u(e,10)与校正量b的计算方法后,研究建立了活性炭反冲膨胀率数学模型。结果表明,10×20目柱状破碎炭较1.5 mm柱状炭反冲洗时更易膨胀,20℃水温下前者的最小流态化速度为15 m·h-1,低于后者的20 m·h-1;研究建立的活性炭反冲膨胀率数学模型可以准确预测活性炭的反冲膨胀率。Backwashing expansion rate of activated carbon is an important parameter for the design of filters in advanced drinking water treatment plant. In this paper,backwashing expansion rates and operation of Taixi coalbased 1.5 mm extruded activated carbon and 10×20 mesh crushed extruded activated carbon were measured with the aid of a self-designed apparatus. Then in accordance of the method presented by Wojciech,a model to predict the backwashing expansion rate of activated carbon filter was established by modifying the calculation of backwashing strength u（e, 10） and introducing a calibration parameter b. The results show that compared with 1.5 mm extruded activated carbon, 10×20 mesh crushed extruded activated carbon is easier to expand,because the minimum fluidization velocity of 10×20 mesh crushed extruded activated carbon is 15 m·h^-1 at temperature 20 ℃ ,lower than 20 m·h^-1 of 1.5 mm extruded activated carbon. The model established can accurately predict activated carbon backwashing expansion rate.

关 键 词：活性炭 反冲膨胀率 测定 

分 类 号：TU991.2[建筑科学—市政工程]