【摘要】 采用H₂SO₄和ZnCl₂复合活化法,以脱水污泥和兰炭末为原料制备了污泥-兰炭末基成型活性炭,通过FTIR、BET及TG对产物进行了表征和性能测试,研究了pH值、固液比和吸附时间对其处理兰炭废水效果的影响,并进行了成型活性炭的再生性能测试。单因素和正交实验结果表明:影响成型活性炭碘吸附值的因素由大到小依次为活化温度>活化时间>浸渍比（污泥和兰炭末混合物质量与活化剂溶液体积比）。最佳制备工艺条件为活化温度750℃、活化时间2 h、浸渍比1∶2.5。制备的成型活性炭平均孔径约9 nm,比表面积约194 m²/g,且结构中含有烷烃、芳烃等多种类型的烃类及醇和酚等含氧官能团。兰炭废水处理结果表明:当pH≈8、固液比（成型活性炭质量与兰炭废水体积比）1∶30、吸附时间32 h,氨氮去除率和色度去除率分别约为83%、42%,成型活性炭经5次再生后,碘吸附值和抗压强度分别降低了31%和62%。更多还原

【Abstract】 A kind of pressed active carbon was prepared by H₂SO₄ and ZnCl₂ complex activation method,using dehydrated sewage sludge and fine semi-coke as raw materials. The synthetic product was characterized by the methods of FTIR、BET and TG. The following factors were considered such as pH,solid-to-liquid ratio and adsorption time in treating semi-coking wastewater. And then the pressed active carbon was revived after adsorption. The single factor experiments and orthogonal experiments showed that the influencing factors of iodine sorption value by pressed active carbon were activation temperature,activation time and immersion ratio（the mass of the sewage sludge and fine semi-coke mixture to the volume of the activating agent）. The optimum technological conditions were:the activation temperature was 750 ℃,the activation time was 2 h and the immersion ratio was 1∶2. 5. The pressed active carbon had the average hole diameter of 9 nm and specific area of 194 m2/g.Furthermore,the product contained alkane,arene,alcohol,hydroxybenzene and many other kinds of alkanes and oxygen containing functional groups. The results indicated that while in the condition of pH≈8,solid-to-liquid ratio was 1∶30 and adsorption time was 32 h,the remove effect of ammonia nitrogen and chromaticity were best,which can reach to 83% and 42%. While after five times recondition,the iodine sorption value and compression strength of pressed active carbon reduced by 31% and 62%separately.更多还原