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为了解尾矿砂类型与废矿水污染河流中重金属离子的化学平衡关系，以及ｐＨ值对尾矿颗粒物吸附特征的影响，研究了铅锌矿、锑矿及黄铁矿等３种尾矿颗粒物对重金属离子Ｐｂ（Ⅱ）和Ｃｄ（Ⅱ）的吸附行为，测定了其吸附等温线、动力学过程和ｐＨ值吸附突跃曲线．结果表明：３种尾矿颗粒物对重金属离子Ｐｂ（Ⅱ）和Ｃｄ（Ⅱ）有较强的吸附作用，吸附等温线属Ｌａｎｇｍｕｉｒ型，吸附速度快，在１０ｍｉｎ内趋于平衡，在一定ｐＨ范围内，吸附量随ｐＨ值升高而增加．
In order to understand the chemical equilibrium relationship between the type of tailing sand and heavy metal ions contaminated by waste water and the effect of pH value on the adsorption characteristics of tailings particles, three kinds of tailings particle pairs, such as lead-zinc, antimony and pyrite, were studied The adsorption behavior of heavy metal ions Pb (Ⅱ) and Cd (Ⅱ) was studied. The adsorption isotherms, kinetic processes and pH value abrupt jump curves were measured. The results showed that the three kinds of tailings particles had strong adsorption on heavy metal ions Pb (Ⅱ) and Cd (Ⅱ), the adsorption isotherm was Langmuir type, the adsorption speed was fast and tended to balance within 10min, , The amount of adsorption increased with the increase of pH.