Journal ArticleDOI
Characterization of dried sewage sludge for co-firing in coal power plant by using thermal gravimetric analysis
Hyuk Im,Cheol Gyu Kim +1 more
TLDR
In this article, the characteristics of dried sewage sludge using TGA to co-fire with coal in power plants were studied. And the results of these TGA/DTG analyses showed that sewage sludges showed its primary peak at the temperature of 250-500°C, which overlapped with main peak of wood and secondary peak at around 500-600°C.Abstract:
This research studied the characteristics of dried sewage sludge using TGA to co-fire dried sewage sludge with coal in power plants. The sewage sludges that were discharged from Daejeon, Korea were dried and examined fundamental properties to use them as a fuel. Also, the properties of bituminous coal and wood pellet, which are used in domestic coal power plants, were analyzed and compared with them of sewage sludges and non-isothermal analyses of dried sewage sludges were performed at the heating rates of 5, 10, 20, and 30C /min using TG analyzer to investigate the basic combustion characteristics. As a results of these TGA/DTG analyses, sewage sludges showed its primary peak at the temperature of 250–500 °C, which overlapped with main peak of wood and secondary peak at around 500–600 °C, which overlapped with main peak of coals. Also for the interpretation by Friedman method, the activation energies in the section of highest weight loss were 525.16 kJ/mole for dried digested sewage sludge, 544.88 kJ/mole for dried excess sewage sludge, 203.86 kJ/mole for wood pellet and 146.4585 kJ/mole for bituminous coal. The reaction orders for dried digested excess sewage sludge, dried excess sewage sludge, wood pellet and bituminous coal were 28.775, 24.319, 18.398 and 9.1005, respectively, and the frequency factors were 5.89
$$\times \hspace{0.17em}$$
1028, 1.65
$$\times \hspace{0.17em}$$
1024,, 9.59
$$\times \hspace{0.17em}$$
1016 and 1.77
$$\times \hspace{0.17em}$$
108 for each, respectively.read more
Citations
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Journal ArticleDOI
Recent developments on sewage sludge pyrolysis and its kinetics: Resources recovery, thermogravimetric platforms, and innovative prospects
Salman Raza Naqvi,Rumaisa Tariq,Muhammad Shahbaz,Muhammad Naqvi,Muhammad Aslam,Zakir Khan,Hamish R. Mackey,Gordon McKay,Tareq Al-Ansari +8 more
TL;DR: The objective of this study is to critically review the recent advancements in sewage sludge pyrolysis and its kinetics obtained using the thermogravimetric techniques, and other associated different kinetic models documented in the literature.
Journal ArticleDOI
A grey-relation-based method (GRM) for thermogravimetric (TG) data analysis
TL;DR: A grey-relation-based method for thermogravimetric (TG) data analysis was proposed, which introduced a mass loss vector (MLV) as numeric form of TG curves and calculated grey relations between MLVs of different materials as criterion.
Journal ArticleDOI
Thermogravimetric analysis kinetic study of Spirulina platensis residue pyrolysis
TL;DR: In this paper , the authors discussed the pyrolysis kinetics of SPR with TGA by flowing nitrogen, the settlement method using Kissinger - Akahira - Sunose (KAS) and Flynn -Wall - Ozawa (FWO), and the experimental results show that the kinetic parameters obtained from the two methods are slightly different.
Journal ArticleDOI
A Practical Methodology for Waste-to-Energy Facilities to Screen Toxic Combustible Wastes and Priority Metals
TL;DR: In this paper, a case study is performed by applying the methodology to waste cable coating, waste engine oil, waste paint, refuse-derived fuel (RDF), refuse plastic fuel (RPF), waste medium-density fiberboard (MDF), and wastewater sludge.
References
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