Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 263, Issue -, Pages 361-366Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2013.03.043
Keywords
Tannery industry; Thermochemical treatment; Synthesis gas; ANN
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This paper reports on the calorific value of synthetic gas (syngas) produced by gasification of dewatered sludge derived from treatment of tannery wastewater. Proximate and ultimate analyses of samples were performed. Thermochemical conversion alters the chemical structure of the waste. Dried air was used as a gasification agent at varying flow rates, which allowed the feedstock to be quickly converted into gas by means of different heterogeneous reactions. A lab-scale updraft fixed-bed steel reactor was used for thermochemical conversion of sludge samples. Artificial neural network (ANN) modeling techniques were used to observe variations in the syngas related to operational conditions. Modeled outputs showed that temporal changes of model predictions were in close accordance with real values. Correlation coefficients (r) showed that the ANN used in this study gave results with high sensitivity. (C) 2013 Elsevier B.V. All rights reserved.
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