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Méndez, A., Barriga, S., Guerrero, F. and Gascó, G. (2011) Thermal Analysis of Growing Media obtained from Mixtures of Paper Mill Waste Materials and Sewage Sludge. Journal of Thermal Analysis and Calorimetry, 104, 213-221. http://dx.doi.org/10.1007/s10973-010-1227-5

has been cited by the following article:

  • TITLE: Preparation of HCl Gas Sorbent from Paper Sludge

    AUTHORS: Takaaki Wajima

    KEYWORDS: Paper Sludge, Hydrogen Chloride Gas, Granulation, Katoite, High Temperature

    JOURNAL NAME: Natural Resources, Vol.8 No.4, April 25, 2017

    ABSTRACT: Paper sludge (PS) is generated as an industrial waste during the manufacture of recycled paper products, and amounts discharged globally are increasing annually. On the other hands, hydrogen chloride (HCl) is an acidic pollutant that is present in the flue gases of most municipal and hazardous waste incinerators. In this study, the removal of hydrogen chloride gas using the product from paper sludge at high temperatures (700oC) using a fixed-bed flow-type reactor was investigated. PS can be granulated with distilled water using granulators, and the particle shapes can be kept after calcination and alkali reaction. Calcined PS and the product after alkali reaction of calcined PS have amorphous phases and katoite (Ca3Al2(SiO4)(OH)8) phase, respectively, and both of these indicate HCl removal ability at high temperature (700oC). The product from calcined PS via alkali reaction has higher HCl fixation ability (78 mg/g) than calcined PS. Removal experiments for HCl gas showed that the removal process followed pseudo-second-order kinetics rather than pseudo-first-order kinetics. These results suggested that the product particles with HCl gas removal ability at high temperature can be prepared from PS using calcination and alkali reaction.