Abstract：Biochemical sludges of sewage and petrochemistry and surplus sludge were taken as raw materials to prepare adsorbents for flue gas desulfurization by pyrolysis. To compare with active carbon, the abilities of adsorbents made from different sludges were studied by SEM, X-ray diffraction diagram, TG and DTA, pore characteristics and elements analysis, and the adsorption mechanisms of systems of SO2-O2-N2 and SO2-O2-H2O(g)-N2 were studied by FTIR. Results indicated that the desulfurization performance of adsorbent made from surplus sludge was better, subsequent was petrochemical sludge, and the adsorbent made from biochemical sludge of sewage was worse. The desulfurization efficiency of adsorbent made from surplus sludge was slightly lower than active carbon. In the system of SO2-O2-N2, physical adsorption was primary, but in the condition of water, chemical adsorption was primary, where catalysis and oxidation of SO2 took place in sludge-derived adsorbent. In adsorption process, the adsorption depends on micropore structure.
余兰兰，钟 秦*，冯兰兰. 污泥吸附剂的制备及其光谱性能研究[J]. 光谱学与光谱分析, 2006, 26(05): 891-894.
YU Lan-lan,ZHONG Qin*,FENG Lan-lan. Preparation of Adsorbent Made from Sewage Sludge and Its Spectrum Properties . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(05): 891-894.
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