粉煤灰基混凝剂制备及处理印钞废水研究  

Study on preparation of coal fly ahs based coagulant and its use in bank note printing wastewater treatment

作　　者：刘转年[1,2] 赵西成[1] 田平安[3] 魏胜波[2] 

机构地区：[1]西安建筑科技大学材料科学与工程博士后流动站,西安710055 [2]西安科技大学地质与环境学院,西安710054 [3]西安陆军学院信息化研究实验室,西安710108

出　　处：《环境工程学报》2009年第4期621-624,共4页Chinese Journal of Environmental Engineering

基　　金：中国博士后科学基金项目(20070411124);陕西省工业攻关项目(2006k07-G19);陕西省教育厅产业化培育项目(06JC11)

摘　　要：将粉煤灰经过超细球磨后再采用微波处理,用于制备粉煤灰基混凝剂。结果表明,超细和微波处理能明显增加混凝剂的产率和性能。通过正交实验确定了去除印钞废水中浊度的粉煤灰基混凝剂的最佳制备工艺条件:粉煤灰/酸比为1∶4(w/v),粉煤灰/碱比为1∶3(w/v),熟化温度为40℃。当投加量为5 mL/100 mL时,粉煤灰基混凝剂对印钞废水处理的浊度去除率为98.37%。对粉煤灰基混凝剂的混凝机理进行了分析。Coal fly ash was treated by microwave after being ball milled and then used to prepare coal fly ash based coagulant. The result showed that ball milling and microwave treatment can increase yield and quality of coagulant. The optimized condition of coagulant preparing were determined through orthogonal experiment, coal fly ash/NaON solution = 1/4, w/v）, coal fly ash/mixed acid （HCl＋ H2SO4 ） = 1/3 （w/v） , and 40 ℃. The removal rate of turbid degree of bank note printing wastewater was 98.37% for coal fly ash based coagulant when 5 mL/100 mL coagulant was added. The coagulation mechanism of coal fly ash based coagulant was discussed.

关 键 词：粉煤灰 混凝剂 印钞废水 

分 类 号：X705[环境科学与工程—环境工程]