气浮气泡的生成规律影响因素实验研究

Experimental Study on the Influence Factors of Flotation Bubbles Formation

气浮法是一种在含有其它相的水中通入微小气泡,进而促使其它相与水分离的技术。得到直径微小,均匀,数量多的气泡是保证气浮法高效分离的关键。本次实验主要是研究气浮气泡生成规律的影响因素,通过改变溶气压力、释放头孔径、释放头圆盘孔的个数、释放头圆盘深度等不同操作条件和结构参数,来探究对气泡生成规律的影响。观察图片中不同条件下气泡的尺寸大小、分布、密集程度,对测得的数据进行分析,找寻不同因素对气浮气泡生成的影响规律,得到气浮法处理含油污水的最佳操作条件,为提高工业中气浮法处理含油污水的效率做参考依据。

Dissolved air flotation is a method to separate the waste from water by generating tiny bubbles. The key to ensure the high efficiency of air floatation is to get enough uniform micron-sized bubbles. This experiment aims to investigate the factors affecting the formation of air bubbles. Through changing the operating pressure and the structure parameters of the releasers,such as aperture, holes number and depth of the disc, the general rules of bubble formation can be acquired. By observing the bubble diameters, bubble distribution and denseness in the photos and analyzing the data, the influence of different factors on the formation of flotation bubbles can be studied. The optimum operating conditions are obtained for oily wastewater treatment by air flotation, which will provide reference for improving the efficiency in industrial applying.