静态和紊动条件下黄河泥沙对砷的吸附规律  

Studies on Arsenic Pollutants Adsorption by Sediments in the Yellow River Under Static and Turbulent Conditions

作　　者：应一梅[1] 李海华[1] 秦馨[1] 

机构地区：[1]华北水利水电学院,河南郑州450011

出　　处：《人民黄河》2012年第7期85-86,89,共3页Yellow River

基　　金：水利部黄河泥沙重点实验室开放课题基金资助项目(201002)

摘　　要：利用黄河原型沙分别开展了静态和紊动条件下细沙对砷的吸咐规律试验,揭示了水中砷浓度和吸附时间的规律,建立了含沙量与砷吸附率的定量关系。结果表明:①在静态和紊动试验条件下,细沙对砷的吸附在5 min以内均可达到饱和平衡,且砷吸附率随含沙量的增加均呈对数增长;②紊动条件下细沙对砷的吸附率要高于静态条件下的吸附率。Simulation experiments were conducted under the static and turbulent conditions,using prototype sediments as adsorbents.The experiments revealed the rule of arsenic concentration in water and adsorption time,and the quantitative relationship between arsenic adsorption efficiency and sediment concentration was obtained.The results show that： ①Under static and turbulent conditions the adsorption equilibrium can be reached in 5 minutes,and adsorption of arsenic shows a logarithmic increase with the increase of sediment concentration;②Compared with the static experiments,the higher adsorption efficiency of arsenic will be obtained in the turbulent experiments.

关 键 词：吸附规律 静态条件 紊动条件 含沙量 砷 泥沙 黄河 

分 类 号：TV149[水利工程—水力学及河流动力学] TV882.1