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为了去除工业废水的六价铬，采用工业废渣———锂渣来做吸附试验，探讨pH值、温度、初始浓度对去除率的影响。经过实验发现，去除Cr6＋的最佳pH值范围是3．0～4．0，并且随着Cr6＋逐渐被吸附，溶液的pH值逐渐升高；在不同温度下，颗粒内扩散模型、准一级速率方程、准二级速率方程对Cr6＋的吸附动力学方程的相关较好，以温度为40℃最优，且符合Langmuir和Freundlich等温吸附模型，最大吸附量达13．785mg／g。结果表明：锂渣中FeO的含量下降了0．2％，Cr3＋和Cr6＋的含量分别提高了0．2022％和0．0309％。说明锂渣对酸性Cr6＋的吸附包含了还原与吸附两个作用，锂渣中的FeO充当了还原剂，降低了Cr6＋的浓度，随着锂渣的吸附作用，将Cr3＋从水中去除。将吸附Cr6＋的锂渣与水泥作为胶凝材料加水成型试件，养护3个月后测试出Cr6＋的溶出量均满足我国地表水III类和地下水III 类规定的要求。“,”In order to remove Cr 6+in industrial wastewater , this paper used industrial waste material such as lithium-slag to do adsorption experiments so as to explore the influence of pH , temperature , ini-tial concentration on removal rate .The study showed that the optimum pH value range is 3.5-4.0, and pH value gradually increased with the gradual adsorption of Cr 6+.The relationship of particle diffusion model, quasi-one rate equation, quasi-two rate equation for adsorbing Cr 6+of dynamic equations is better under different temperatures .The optimal temperature is 40℃,which conform Langmuir and Freundlich i-sotherm model.The maximum adsorption capacity is 3.785 mg/g.Component analysis showed that the content of FeO in lithium-slag decreases by 0.2% and that of Cr3+and Cr6+increases 0.2022% and 0.0309% respectively, which indicate that the adsorption of lithium-slag to acidic Cr6+ contains two effects of restoration and adsorption .FeO in lithium-slag acted as a reducing agent that reduces concentra-tion of Cr6+.Cr3+is removed from water with adsorption effect of lithium slag .The lithium-slag of adsor-bing Cr6+and cement are used as cementing material prepared into test piece which can meet class III of surface water and groundwater after conserved 3 months .