电解浮选用于活性污泥固液分离及其动力学研究  

Electro-flotation in solid-liquid separation and its kinetics study

作　　者：陈金銮[1] 万晶[1] 施汉昌[1] 

机构地区：[1]清华大学环境科学与工程系环境污染与模拟控制国家重点联合实验室,北京100084

出　　处：《环境污染与防治》2007年第6期430-432,共3页Environmental Pollution & Control

摘　　要：在装有Ti/RuO2-IrO2-TiO2阳极、Ti阴极的电解浮选槽中进行了活性污泥固液分离的研究。考察了水力停留时间对浮选效果的影响,研究了电解产生的微气泡对悬浮物浮选的动力学。研究表明,电解浮选是高效的固液分离单元,悬浮物的去除遵循一级动力学模型。The separation of suspended solids from an activated sludge process was carried out in an electro-flotation cell that has two sets of electrodes, three Ti/RuO2-IrO2-TiO2 anodes and three Ti screen cathodes. The effect of hydraulic retention time （HRT） on the performance of the electro-flotation system was examined. The kinetics of flotation of suspended solids by electrolytically generated micro-bubbles was also studied and found to follow first order rate expression. Electro-flotation cell can accomplish high performance in solid-liquid separation application of this type.

关 键 词：电解浮选 固液分离 SS去除率 动力学 

分 类 号：X703[环境科学与工程—环境工程]