中文摘要：

针对微波不能直接实现原污水污泥高温热解的问题,采用碳化硅作为微波能吸收物质辅助污泥热解。对影响污泥热解效能的3个主要因素：污泥样品量、碳化硅掺杂量和微波辐射功率,各做了3个水平的考察,得到了试验条件下的最优方案：污泥样品量45 g、碳化硅掺杂量12 g、微波辐射功率1 600 w。结果表明：在最优试验方案下,污泥能在6 min内升至931℃的高温,实现污泥快速、高效、经济地热解。通过3个因素对污泥热解效能影响的分析,认为在微波高温热解过程中,可能生成了性能优于碳化硅的新的微波能吸收物质。

英文摘要：

It was found that high temperature pyrolysis of the sludge samples could not take place if just raw sewage sludge is treated in microwave,thus SiC was used to induce pyrolysis of sewage sludge as a suitable microwave absorber.Three factors chosen for orthogonal test including amount of sludge sample,SiC doping amounts and input power of microwave radiation were studied,each with 3 levels.Experimental results showed the optimal conditions as amount of sludge samples 45 g,SiC doping amounts 12 g and input power of microwave radiation 1,600 W.Result of experiment under the optimum program showed that the temperature of sludge sample could be achieved up to 931 ℃ during 6min,with sludge samples pyrolysized fast,efficiently and economically.Based on the analysis of effect of 3 factors on pyrolysis efficiency,it may conclude that new microwave absorbers were produced during pyrolysis process of sludge samples which were superior in absorbing microwave radiation than SiC.