Lime-Mediated Sewage Sludge and Gas Ash use as Metallurgy Sintering Ingredients

Abstract:

The thermogravimetry - differential thermal analysis (TG-DTA) and theoretical analysis method of Coats-Redfern were employed to study the pyrolysis process and kinetics characteristics of mixture containing lime-mediated sewage sludge and gas ash, then sintering cup test the different proportion of mixture ball. It was found that the pyrolysis process of mixture from indoor temperature 1200°Ccould divided into 4 the weight loss stages, which brings a large number of heat and CaO, Fe₂O₃. Base on the results of Coats-Redfem integration method, the pyrolysis process of mixture under air atmosphere was belongs to two-class reaction. Sintering cup test show that lime-mediated sewage sludge and gas ash replacing part of the sintering ingredients is feasible.

• Periodical: Advanced Materials Research (Volumes 779-780)
• Pages: 1623-1628
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.779-780.1623
• Online since: September 2013
• Authors: Chen Hong, Yi Xing, Yan Xiao Si, Zhi Qiang Wang, Guang Wei Yu, Chang Sheng Yue, Yang Li, Xing Qiang Tian, Fan Zhao, Ana Alexeev
• Keywords: Gas Ash, Kinetic, Lime-Mediated Sewage Sludge, Sinter, Thermal Gravimetric Analysis

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