The volume of sludge is a growing problem worldwide due to the increase in the population and the growing in industry and agriculture. Therefore, sludge management and disposal are becoming problematic and required more intensive and creative efforts. The objective of this study was to produce activated carbon using sewage sludge as raw material. Preparation conditions of sewage sludge based activated carbon were optimized by applying Box-Behnken Design (BBD) in response surface methodology (RSM). Optimization process investigated the impact of interaction between chemical activation ratio, contact time and activation temperature on the surface area of activated carbon. A series of activated carbons were chemically activated using potassium hydroxide (KOH) and physically activated by pyrolysis process in tube furnace. The response of optimization process was the surface area of activated carbon which was depicted by the second-order polynomial regression model created by ANOVA. Optimum activated carbon characterizations were conducted by surface area (BET), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and Thermogravimetric analysis TGA. The maximum surface area of 377.7 m²/g was achieved at chemical activation ratio of 1, activation contact time of 3 hours and activation temperature of 500 ℃. According statistical analysis, the most significant parameter was the contact time, followed by chemical activation ratio and activation temperature.

由于人口的增加和工农业的发展，污泥量是世界范围内日益严重的问题。因此，污泥管理和处置变得越来越困难，需要更加集中和创造性的努力。本研究的目的是以污水污泥为原料生产活性炭。应用Box-Behnken Design (BBD) 响应面法(RSM) 优化污水污泥基活性炭的制备条件。优化过程研究了化学活化比、接触时间和活化温度之间的相互作用对活性炭表面积的影响。一系列活性炭使用氢氧化钾 (KOH) 进行化学活化，并在管式炉中通过热解过程进行物理活化。优化过程的响应是活性炭的表面积，由 ANOVA 创建的二阶多项式回归模型描述。通过表面积 (BET)、傅里叶变换红外光谱 (FTIR)、X 射线衍射 (XRD)、扫描电子显微镜 (SEM) 和热重分析 TGA 进行了最佳活性炭表征。最大表面积 377.7 m在化学活化比为1、活化接触时间为3小时、活化温度为500℃时达到² /g。根据统计分析，最显着的参数是接触时间，其次是化学活化比和活化温度。