城市污水厂剩余污泥制备烟气脱硫吸附剂

以城市污水厂剩余污泥为原料，采用不同方法制备烟气脱硫吸附剂，讨论SO2—O2—N2及SO2—O2—H2O(g) —N2体系各因素对脱硫效率的影响，研究建立了固定床吸附模型。结果表明：城市污水厂剩余污泥利用热解炭化法制备的烟气脱硫吸附剂性能较好。并与商品活性炭对比进行了性质测试，确定了两体系最佳吸附条件，固定床吸附模型计算值与实验值拟合较好。

Preparation of adsorbent of flue gas desulfurization from urban sewage surplus sludge

Taking surplus sludge of urban sewage as raw material, different methods were used to prepare adsorbent for flue gas desulfurization. The factors affecting the desulphurization efficiency for the systems of SO2—O2—N2 and SO2—O2—H2O(g)—N2 were discussed, and a stationary bed model for the system SO2—O2—H2O(g) —N2 was also established. The results indicated that the adsorbent prepared by pyrolysis was better. In comparison with commodity activated carbon, the adsorption capabilities of the adsorbent made from surplus sludge were studied. The best absorption conditions for two adsorption systems were determined, and the simulated values with the stationary bed model and experiment values were in good agreement.