好氧颗粒污泥用于膜污染的控制

Aerobic biosludge granules for control of membrane fouling

膜生物反应器在运行过程中容易引起严重的膜污染,从而限制了膜生物反应器在实际废水处理工程中的应用。从污泥特性角度分析了好氧颗粒污泥的特点和减缓膜污染的原因,并且与活性污泥比较,提出好氧颗粒污泥减缓膜污染的优势,为膜污染的控制提出了新的思路和方法。

Frequent membrane fouling has prevented the wide application of membrane bioreaetor in wastewater treatment plant. The characteristics of aerobic sludge granules, causes and control of membrane fouling in MBR wastewater treatment are presented. Relative to the activated sludge, aerobic sludge granules are larger, more active, better settling and less likely to foul the membrane. A membrane bioreactor employing sludge granules is an attractive wastewater treatment process.