凹凸棒对盐碱水的处理研究

Study on the treatment of saline-alkali water by concave-convex rod

以碳酸氢钠配制水溶液模拟制成的盐碱水作为处理对象,将凹凸棒按照一定比例与石英石充分混合,填充到下端带孔的50 mL离心管中,并将0.1 mol·L^(-1)碳酸氢钠水溶液滴加到此离心管中,凹凸棒对盐碱水进行处理后的清液滴入小烧杯中,再对小烧杯中清液进行参数测定.实验结果显示,电导率由6160 us·cm^(-1)降到4800 us·cm^(-1),pH值由8.93降到8.11,盐碱水的pH值和电导率均有明显降低,对凹凸棒处理改善水质具有一定的理论指导意义.

Sodium bicarbonate was used to prepare aqueous solution to simulate saline-alkali water,which was used as treatment object.Concave-convex rod was mixed with quartzite in a certain proportion,filled into a 50 mL centrifuge tube with holes at the lower end,and 0.1 mol·L^(-1)sodium bicarbonate solution was added to the centrifugal tube.The clear liquid was obtained and dropped into a small beaker after the treatment with the concave-convex rod,and then the parameters of the clear liquid were determined.The experimental results showed that the electrical conductivity decreased from 6160 us·cm^(-1)to 4800 us·cm^(-1),and the pH value decreased from 8.93 to 8.11.The electrical conductivity and the pH value of saline alkali water both decreased significantly.The experiment has a certain theoretical significance for improving water quality by concave-convex rod treatment.