对微气浮法处理矿井水中悬浮物的处理效果进行了试验研究。试验结果表明,微气浮法加过滤处理矿井水中悬浮物,当悬浮物含量小于1000mg/L时,采用6～8min的反应时间,0.25～0.35MPa的溶气压力,6％～16％的回流比和7～8m~3/m~2h的分离负荷是合适的,处理后的水质可满足循环今却水的需要。该工艺与沉淀法相比效率高、投资省、上马快,是一种简便实用可行的处理方法。 The experimental research on the treatment effect of micro-floatation in the treatment of suspended solids in mine water was carried out. The test results show that when the content of suspended solids is less than 1000mg / L, the reaction time of 6 ~ 8min, the pressure of solution of 0.25 ~ 0.35MPa, the reflux of 6% ~ 16% And 7 ~ 8m ~ 3 / m ~ 2h separation load is appropriate, after the treatment of water quality can meet the needs of the cycle but the water. Compared with the precipitation method, the process has the advantages of high efficiency, low investment and quick start-up, and is a simple and practical treatment method.