中文摘要：

采用椰壳制备活性炭吸附处理酸性大红GR染料废水。通过单因素和响应面实验确定了椰壳活性炭制备的最优工艺参数液固比为3．1 mL/g，磷酸质量分数为66％，活化时间为2．5 h，活化温度为602℃，此条件下制备的活性炭对酸性大红GR染料的吸附容量为1 682 mg／g。以Design—expert7．0软件建立的工艺参数模型与实验结果有较好的吻合度。SEM显示，制备的活性炭具有均匀的纳米级微孔结构。制备的活性炭对酸性大红GR染料的吸附行为符合准二级动力学方程。

英文摘要：

Coconut shell has been used for the preparation of activated carbon and the adsorption treatment of acidicred GR dye wastewater. By single-factor and response surface experiments, it is ascertained that the optimized tech-nological parameters of the coconut shell-based activated carbon are as follows ： liquid-solid ratio is 3.1 mL/g, phos-phoric acid mass fraction 66%, activation time 2.5 h and activation temperature 602 ℃. Under these conditions, theadsorption capacity of the activated carbon for acidic scarlet GR dye is 1 682 mg/g. The technological parametersmodel set up Design-expert 7.0 software are in good agreement with experimental results. SEM indicates that theprepared activated carbon has uniform nano-microporous structure. The adsorption action of the prepared activatedcarbon for acidic scarlet GR dye complies with pseudo-second order kinetics equation.