Liu Jianguo, Jiang Xiumin, Zhou Lingsheng, Wang Hui, Han Xiangxin
School of Mechanical Engineering, Shanghai JiaoTong University, Shanghai, PR China.
J Hazard Mater. 2009 Aug 15;167(1-3):817-23. doi: 10.1016/j.jhazmat.2009.01.061. Epub 2009 Jan 24.
Incineration has been proven to be an alternative for disposal of sludge with its unique characteristics to minimize the volume and recover energy. In this paper, a new fluidized bed (FB) incineration system for treating oil sludge is presented. Co-firing of oil sludge with coal-water slurry (CWS) was investigated in the new incineration system to study combustion characteristics, gaseous pollutant emissions and ash management. The study results show the co-firing of oil sludge with CWS in FB has good operating characteristic. CWS as an auxiliary fuel can flexibly control the dense bed temperatures by adjusting its feeding rate. All emissions met the local environmental requirements. The CO emission was less than 1 ppm or essentially zero; the emissions of SO(2) and NO(x) were 120-220 and 120-160 mg/Nm(3), respectively. The heavy metal analyses of the bottom ash and the fly ash by ICP/AES show that the combustion ashes could be recycled as soil for farming.
焚烧已被证明是一种处置污泥的替代方法，它具有独特的特性，能够最大限度地减少污泥体积并回收能量。本文介绍了一种用于处理油泥的新型流化床焚烧系统。在该新型焚烧系统中，对油泥与水煤浆（CWS）的共燃进行了研究，以考察燃烧特性、气态污染物排放及灰渣管理。研究结果表明，在流化床中油泥与水煤浆共燃具有良好的运行特性。水煤浆作为辅助燃料，可通过调节其进料速率灵活控制密相床温度。所有排放均符合当地环境要求。一氧化碳排放量小于1 ppm或基本为零；二氧化硫和氮氧化物的排放量分别为120 - 220 mg/Nm³和120 - 160 mg/Nm³。通过电感耦合等离子体发射光谱法（ICP/AES）对底灰和飞灰进行的重金属分析表明，燃烧后的灰渣可作为农用土壤进行循环利用。
