双极铝电极电絮凝法去除地下水中氟的试验研究  

DEFLUORIDATION OF GROUNDWATER OF GUIZHOU BY ELECTROCOAGULATION USING BIPOLAR ALUMINUM ELECTRODES

作　　者：张道勇[1,2] 潘响亮[1] 穆桂金[2] 林剑[1] 

机构地区：[1]中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州贵阳550002 [2]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011

出　　处：《水处理技术》2008年第5期46-49,共4页Technology of Water Treatment

基　　金：国家高技术研究发展(863)计划项目(2006AA06Z339);国家自然科学基金项目(40673070);中国科学院地球化学研究所前沿领域项目(05CJ130001);贵州省科技基金(黔科合J字(2007)2027)

摘　　要：针对贵州省地下水中氟污染性质和贫困现状,研究了以双极铝电极电絮凝技术处理高氟地下水的最佳工艺参数和运行成本。结果表明,电絮凝是一种理想去除地下水中氟离子的技术,其最佳的电流密度为25～30A/m2,最佳极板间距为1.5cm。在最佳运行条件下,去除1g氟离子的能耗为0.45～1.5kWh;处理每吨氟浓度为2～8mg/L地下水的电能消耗约为0.9～12kWh,处理成本为0.45～6元。该技术所需装置结构简单,成本低,长期耐用,可望成为一种切实有效的解决地氟病盛行地区氟中毒问题的实用技术。High-level fluoride in groundwater in Guizhou leads to prevalent fluorosis in this area. In the present study, electrocoagulation using bipolar aluminum electrodes was employed to remove fluoride from groundwater in Guizhou. The optimal parameters and energy consumption for this technology were investigated. The optimal current density and electrode distance were 25 -30A/m^2 and 1.5cm, respectively. Under the optimal conditions, 0.45 - 1.5kWh of energy was required for removing one gram of F. Treatment of groundwater containing fluoride at 2 - 8mg/L would cost 0.9- 12kWh electrical energy, indicating electrocoagulation is a promising technology for defluoridation of groundwater in poor rural areas due to its low cost and high performance.

关 键 词：地下水 电絮凝 双极铝电极 氟化物 

分 类 号：X703.1[环境科学与工程—环境工程]