中文摘要：

研究了热解终温对污泥热解残渣物理化学特性的影响,着重分析了不同热解终温下污泥热解残渣的比表面积、孔结构与吸附性能,并根据傅里叶红外光谱分析污泥热解残渣表面化学性质变化。研究表明,与污泥干燥基相比,污泥热解残渣中的水分、挥发分含量较低,灰分和固定碳含量较高;热解终温为500℃时,污泥热解残渣的总比表面积达到最大值20.110 m2/g,而总孔容积则在热解终温为450℃时达到最大值28.770 mm3/g;污泥热解残渣的碘吸附值随着热解终温的升高从330.38 mg/g逐渐降低到113.00 mg/g,而亚甲基蓝吸附值在热解终温为450℃时达到最大值11.00 mg/g;碘吸附值的变化趋势与微孔结构变化不一致,而亚甲基蓝吸附值的变化趋势与中大孔结构变化规律基本相符;随着热解终温的升高,污泥热解残渣表面的C—H、—OH、C—O和C=C等官能团均发生微小变化。

英文摘要：

In this paper,the effect of the final pyrolysis temperature on the physical and chemical characters of the pyrolysis residues of sewage sludge was investigated by analyzing the variation of surface area,pore structure,iodine and methylene blue adsorption and FTIR spectra of the obtained pyrolysis residues.The results showed that the pyroysis residues of sewage sludge contain low carbon and high ash.When the final pyrolysis temperature was 500 ℃,the obtained residue achieved the maximum specific surface area of 20.110 m2/g,while the residue obtained at 450 ℃ had the largest pore volume（28.770 mm3/g）.The iodine adsorptions of the residues decrease gradually from 330.38 mg/g to 113.00 mg/g with the increases of the pyrolysis temperature,while maximal methylene blue adsorption value（11.00 mg/g） was found at 450 ℃.The change of methylene blue adsorption of the residues was consistent with the change of mesopore structure,but the change of iodine adsorptions was not consistent with micropore structure.With the increasing of finial pyrolysis temperature,the chemistry function groups,such as C—H,—OH,C—O and C=C on the surface of the pyrolysis residues changed accordingly.