Reactive Adsorption of NO_2 at Dry Conditions on Sewage Sludge-Derived Materials

摘要

Composite inorganic-carbonaceous adsorbents were obtained by pyrolysis of sewage sludge at 500, 650, and 950℃ for various periods of time. They were used as media for reactive adsorption of NO_2. The surface structure and chemistry of the initial and exhausted materials were analyzed using adsorption of nitrogen, XRD, FTIR, and thermal analysis. The results indicate the high level of conversion of NO_2 to NO with the retention of both species on the surface depending on its chemistry.