短管填料对沉淀池沉淀效果的改进  

Improvement of sedimentation effect by laying of short-tube filling in sedimentation basins

作　　者：朱亮[1] 田玉兰[1] 严晖[1] 

机构地区：[1]河海大学环境科学与工程学院,江苏南京210098

出　　处：《河海大学学报（自然科学版）》2004年第3期248-251,共4页Journal of Hohai University(Natural Sciences)

基　　金：国家"863"计划资助项目(TK 2 5)

摘　　要：在模拟平流式沉淀池、竖流式沉淀池及SBR反应器中,通过放置短管填料可以使浊度去除率提高20%～30%,减少泥水分离的时间.浊度去除率随着放置填料的增加和反应器内水流水平流速的减少而增加.在反应器中放置短管填料可以促进混凝效果,投加混凝剂后可以使浊度去除率提高20%左右.短管填料在反应器中自然放置与固定放置相比,浊度去除率可以提高10%左右.Some conclusions are drawn from laboratory tests: the laying of short-tube filling in the horizontal-flow sedimentation basin, vertical-flow sedimentation basin, and SBR reactor raises the turbidity removal ratio by 20%～30% and reduces the water-soil separation time; the turbidity removal ratio is raised when the amount of filling added is increased, and the horizontal flow velocity is decreased; the laying of short-tube filling can improve the effect of coagulation, and the adding of coagulants can raise the turbidity removal ratio by about 20%; compared with the fixed laying of short-tube filling in reactors, the free laying of filling can raise the turbidity removal ratio by about 10%.

关 键 词：短管填料 平流式沉淀池 竖流式沉淀池 SBR反应器 混凝 

分 类 号：TU991.23[建筑科学—市政工程]