基于量纲分析的河流突发砷污染应急移动吸附模型  

Emergent Mobile Adsorption Model for River Sudden Arsenic Pollution Control Based on Dimensional Analysis Method

作　　者：孙丽风[1] 张志斌[2] 孔敏[3] 孙翠珍[2] 张彦浩[2] 张文辉[3] 

机构地区：[1]青岛理工大学计算机工程学院,山东青岛266033 [2]山东建筑大学市政与环境工程学院,山东济南250101 [3]山东省环境保护科学研究设计院,山东济南250014

出　　处：《中国给水排水》2016年第21期77-80,共4页China Water & Wastewater

基　　金：山东省重大环境瓶颈解析与突破项目(SDZS-2012-SHBT01)

摘　　要：采用移动吸附中试装置,以活性氧化铝为吸附剂,考察了吸附剂投量、移动运行速度、初始砷浓度和吸附袋高度对除砷效果的影响。结果表明,随着吸附剂投量的增加,移动吸附装置对As(Ⅴ)的去除总量和去除速率均显著增加;对砷的去除率随着初始浓度的增加而增大,高砷浓度有利于吸附袋内部的传质效果。另外,基于量纲分析构建了河流突发砷污染应急移动吸附中不同时刻的剩余砷浓度与吸附剂投量、移动运行速度、初始砷浓度、吸附袋高度之间的移动吸附模型,该半理论半经验公式可为移动吸附应急除砷技术的工程应用提供理论和技术指导。A pilot-scale mobile adsorption device with activated alumina as adsorbent was used to investigate the effect of adsorbent dosage, moving speed, initial arsenic concentration and adsorption bag height on arsenic removal. The results showed that the total removal amount and the removal rate of arse- nic were increased with the increase of adsorbent dosage. The removal rate of arsenic was increased with the increase of initial concentration of arsenic. The high concentration of arsenic was conducive to mass transfer in adsorption bag. In addition, a model for describing the relationship of the residual arsenic con- centration to adsorbent dosage, moving speed, initial arsenic concentration and adsorption bag height at different times during emergency mobile adsorption for river sudden arsenic pollution control was built based on dimensional analysis. The semi-theoretical and semi-empirical formula can provide the theoreti- cal and technical guidance for the application of the mobile adsorption device for arsenic removal.

关 键 词：河流 突发污染 砷 移动吸附 氧化铝 

分 类 号：X522[环境科学与工程—环境工程]