石灰沉淀-混凝沉淀处理含氟废水的试验  

TREATMENT OF WASTEWATER-CONTAINING FLUORIDE BY LIME-SEDIMENTATION AND COAGULATION PRECIPITATION

作　　者：徐金兰[1] 王宝泉[1] 王志盈[1] 戴晓英 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]西安市古建园林设计研究院,陕西西安710061

出　　处：《水处理技术》2003年第5期282-285,共4页Technology of Water Treatment

摘　　要：单纯的石灰沉淀法不能把高浓度含氟废水降到较低水平,Ca(OH)2+Al2(SO4)3(或PAC)是处理100mg/L左右的含氟废水的有效方法。其中,PAC的处理效果优于Al2(SO4)3,在pH值范围6.0～7.0时,PAC投加400mg/L的条件下,出水可达10mg/L以下,满足了回用及排放的要求。Simple lime-sedimentation method fails to lower the concentration of the wastewater-containing fluoride with high concentration to the lower level; Ca(OH)2 + Al2(SO4)3 (or PAC) is an effective method to treat the wastewater with 100mg/L or so fluoride, in it, the treating effect of PAC is superior to that of Al2(SO4)3. Under the condition of pH=6.0-7.0 and dosing 400 mg/L PAC, the content of fluoride in effluent can, lower to below 10 mg/L, meeting the requirements of reuse and discharge.

关 键 词：石灰沉淀-混凝沉淀处理 含氟废水处理 试验 氟污染 

分 类 号：X783[环境科学与工程—环境工程] X703.1