浅池气浮净水污粒表观密度对池深的影响  

Affect of Slops Particles Apparent Density on the Tank Depth for Shallow Tank Flotation Wastewater-treatment

作　　者：郑少梅[1] 

机构地区：[1]青岛理工大学机械学院,山东青岛266033

出　　处：《宁夏大学学报（自然科学版）》2009年第2期167-169,共3页Journal of Ningxia University(Natural Science Edition)

基　　金：辽宁省教育厅资助项目(J2004D77)

摘　　要：分析了浅池气浮净水系统中影响挟气污粒上浮速度的因素.在挟气污粒平均直径较小时,紊流状态的上浮速度较层流状态的快,当挟气污粒的平均直径小于0.2 mm时,层流状态的上浮时间显著增加.结果表明,浅池气浮净水更适于处理平均直径较大及表观密度较小的挟气污粒的废水;为缩短上浮时间,平均直径较小的挟气污粒需气量较大,否则会影响气浮效率及净水效果.The affecting factors of floating speed of slops particles with gas bubbles in shallow tank flotation wastewater treatment system are analyzed. It is pointed out that, while the mean diameter of slops particles with gas bubbles is smaller, its floating speed under the messing station will be faster than the layer flowing station and the floating time of the particles will increase obviously. It is concluded that shallow tank flotation wastewater treatment system is fitting to the treatment of waste water with slops particles of larger mean diameter or with lesser slops particles apparent density. The results show that in order to shorten the floating time, slops particles with smaller mean diameter must have more gas quantity, otherwise the flotation efficiency and the effect of floatation waste water treatment would be affected.

关 键 词：浅池气浮净水 池深 污粒表观密度 

分 类 号：X703.1[环境科学与工程—环境工程]