活性炭处理电渗过程中阳极产生的裂缝试验研究  

Experiment on crack produced by anode in process of electro- osmotic treatment by activated carbon

作　　者：饶平平[1] 宋忠强[1] 闫雪明[1] 

机构地区：[1]上海理工大学环境与建筑学院,上海200093

出　　处：《水资源与水工程学报》2014年第2期17-23,共7页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金青年基金项目(51208301);上海市大学生创新创业训练计划(52-12-307-200);上海理工大学环境与建筑学院大学生帮困创新基金

摘　　要：在自制的模型箱里进行两组电渗排水试验,第一组试验(T1)用于探究电渗过程中在阳极和阴极附近产生的裂缝对电渗结果的影响程度,通过对比两极裂缝处消耗的电势降、电能及电阻值,得出阳极裂缝对电渗的影响明显强于阴极裂缝;在此基础之上,第二组试验(T2)用导电性良好的活性炭粉末对阳极裂缝进行了预处理,通过对比T1与T2在阳极附近消耗电势降、电能耗、试验排水量及土体最终含水率,探究对阳极裂缝处理的可行性,得出阳极裂缝处理的初步结论,即用活性炭对阳极裂缝进行初步处理有利于电渗过程中水体的排出,在较短的试验时间内,加入活性炭的土体阳极耗能大于裂缝消耗的电能。The test of electro-osmotic drainage of two group was conducted in a self-made test tank. The first test（ T1） was aimed at exploring the influence extent of crack which was produced near anode and cathode in process of electro-osmosis on electro-osmotic results. Through the contrast of voltage drop,electrical energy and resistance value consumed at crack of two poles,the paper obtained that the influence of anode cracks on electro-osmosis is significant stronger than that of cathode cracks; on which basis, the second test（ T2） pretreated the anode cracks by conductive fine powder of activated carbon. By comparing drop consumption,electricity consumption,test displacement and final moisture content of the soil of T1 and T2 in the vicinity of anode voltage,it explored the feasibility of anodic crack treatment,and obtained the preliminary conclusion of anode crack treatment. That the method used activated carbon to pretreat anode cracks was conducive to discharge of water body in the process of electro-osmosis. In short time of test,the energy consumption of anode of soil body by adding activated carbon is greater than that of the fracture.

关 键 词：电渗 阳极裂缝处理 活性炭 电势降 排水处理 

分 类 号：TV223.6[水利工程—水工结构工程]