电解质对细颗粒泥沙稳定性的影响研究

Study on the Stability of Electrolyte for Fine Sediment

电解质对细颗粒泥沙的稳定性有较大影响,该影响可通过细颗粒泥沙的Zeta电位来衡量,Zeta电位随电解质溶液的浓度,酸度的变化而变化,浓度增大,酸度降低,均可使细颗粒泥沙的Zeta电位(绝对值)减少,从而导致絮凝沉降速度加快,所得结论符合DLVO理论.

The effect of electrolyte for fine sediment could measure by Zeta potential of fine sediment, which was changed according to the concentration and pH of electrolyte solution. Both raising concentration and decreasing pH leaded to the decreasing of Zeta potential. So the sedimentation rate increased. The result abided by the DLVO theory.