旋转球磨法破解剩余污泥的研究  

Experimental study on excess sludge disintegration with Stirred Ball Mills method

作　　者：张秀秀[1] 王洋[2] 由美雁[2] 谢元华[2] 徐烨[1] 朱彤[2] 

机构地区：[1]东北大学理学院,辽宁沈阳110819 [2]东北大学机械工程及自动化学院,辽宁沈阳110819

出　　处：《节能》2016年第10期10-13,共4页Energy Conservation

基　　金：国家自然科学基金项目(项目编号:51178089);教育部中央高校基本科研业务费(项目编号:N150304002;N140306001);辽宁省科技项目博士启动基金(项目编号:201501155)

摘　　要：为考察旋转球磨法破解剩余污泥的效果，以玻璃珠、石英砂和建筑砂为球磨材料，采用旋片式组织破碎机研究不同破解时间、球磨粒径和球磨添加比例时剩余污泥的粒径分布、溶解性化学需氧量、核酸和氨氮浓度的变化。研究结果表明：旋转球磨法是一种有效的破解剩余污泥的方法，添加球磨材料比直接破解效果要好，并从降低能耗的角度分析3种球磨材料的较佳破解时间均为15min；当球磨质量和时间一定时，石英砂破解污泥的较佳粒径为1～1．43mm，石英砂与污泥的比例为1：12g／mL时污泥破解效果较好。In order to investigate the effects of the stirred ball mills method to disintegrate the excess sludge,Glass beads,quartz sand and building sand were chose as the ball milling material.A set experiment were conducted to research the change of particle size distribution,dissolved chemical oxygen demand,nucleic acid and ammonia nitrogen concentration of excess sludge under different time,the size of ball milling and the ratio of ball milling,using rotary vane type tissue crushing machine.Research results showed that stirred ball milling was an effective method to disintegrate the excess sludge,and effects of the addition of ball milling material was better than that of without ball milling material.From the perspective of reducing energy consumption,the best disintegration time of the three kinds of ball milling materials were 15minutes;when the quality of grinding beads and time were constant,the best particle size of quartz sand to disintegrate the sludge was 1 ~ 1.43mm;and the best ratio between quartz sand and sludge was 1:12g/ml.

关 键 词：剩余污泥 旋转球磨法 污泥破解 球磨材料 溶解性化学需氧量 

分 类 号：X705[环境科学与工程—环境工程]