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中文摘要：
以城市给水厂污泥为主要原料,辅以膨润土制备污泥陶粒,利用污泥陶粒吸附去除水中的Cr~（6＋）,研究了溶液pH值、溶液中Cr~（6＋）初始浓度以及反应温度对吸附过程的影响.结果表明,当溶液pH值为4.5时吸附去除效果最佳;吸附量随初始浓度增加以及反应温度的升高而增大;吸附过程符合拟二级动力学模型;Langmuir等温吸附模型能够很好地描述等温吸附过程.
英文摘要：
The sludge ceramsite was prepared by water treatment sludge and clay,the adsorption Cr~（6＋） on sludge ceramsite was studied,the effects of pH value,initial concentration of Cr~（6＋） and reaction temperature of the adsorption process were also studied. The results show that,when the p H value of the solution is 4. 5,the adsorption and removal efficiency is the best; The adsorption capacity increases with the increases of initial concentration and the reaction temperature; The adsorption process is in accordance with the quasi-second order kinetic model; The Langmuir isothermal adsorption model can describe the isothermal adsorption process well.
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