Objective]The technology conditions for preparation of granular activated carbon from agricul-tural wastes were optimized and the factors influencing the activation were investigated in order to find an efficient way to produce granular activated carbon .[Method] The effects of raw materials including corn stalk, peanut shell and pine-nut shell, the content of binder and the activation time on the adsorptive per-formance were analyzed .[Result and conclusion]Under the designed conditions , the factor of raw mate-rial had the most significant influence , which was followed by the content of binder and the activation time.The optimum result was achieved when the raw material was corn straw , the activation time was 45 min, and the content of binder was 35%.The maximum adsorptive ability of granular activated carbon has the iodine value of 828.60 mg · g-1 , the methylene cyaine adsorption value of 143 .22 mg · g -1 , the surface area value of 604.98 m2 · g-1 .The results have certain influences on improving the economic and environmental benefits of granular activated carbon .%目的研究农业废弃物颗粒活性炭的制备工艺，得到较佳的制备工艺参数．方法根据颗粒活性炭的特性，采用正交试验分析了玉米秸秆、花生壳和松籽壳3种原料在不同粘结剂含量和活化时间的组合上对制得颗粒活性炭吸附性能的影响．结果和结论在试验设计取值范围内，原料种类对颗粒活性炭吸附性能的影响较显著，粘结剂含量和活化时间的影响次之．根据正交试验结果得出较佳的制备工艺参数，即原料种类为玉米秸秆，粘结剂含量（w）为35％，活化时间为45 min．以此工艺参数组合制备出的颗粒活性炭碘值为828．60 mg· g－1，亚甲基蓝吸附值143．22 mg· g－1，比表面积604．98 m2· g－1，研究结果对提高颗粒活性炭的经济效益和环境效益具有一定的参考意义．
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