用阳离子型聚丙烯酰胺消除曝气池表面泡沫研究

MECHANISM TO TREAT THE FOAMS ON THE SURFACE OF AERATION BASIN THROUGH ADDITION OF POLYCRYAMIDE CATIONIC POLY

针对曝气池表面常见泡沫问题介绍了一种方便、快捷的消除方法．该方法可为国内有关污水处理厂借鉴．以０．５ｍｇ·Ｌ－１剂量投加阳离子型聚丙烯酰胺于二沉池进水管中能有效地抑制泡沫的产生．

This article introduced an instant and effective defoaming approach applicable to domestic wastewater plants to handle the foaming problems on the surface of aeration basin. A desirable effect upon the prevention of foaming could be achieved by adding polycryamide cationic polymer into the intake pipe in secondary setting tank with a dosage of 0.5 mg·L -1 . Forthermore, it explored and verified the non foaming mechanism to produce two kinds of foams through addition of polycryamide cationic polymer by experiment.