Electrical and Microwave Characterization of Thermal Annealed Sewage Sludge Derived Biochar Composites
Patrizia SaviDET, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, ItalyMuhammad YasirDET, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, ItalyMattia BartoliDISAT, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, ItalyMauro GiorcelliDISAT, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, ItalyMatteo LongoBioForceTech Corporation, 1400 Radio road, Redwood City, CA 94065, USA
2020en
ABI
Abstract
Ever-increasing proportions of sewage sludge are being generated due to increases in population and urbanization. As a result, the disposal of sewage sludge for use as manure and for other agricultural applications is not sufficient. The use of biochar derived from sewage sludge as a substitute to other carbon fillers was analyzed by performing electrical and morphological characterization. The electrical and microwave characterization of composites filled with sludge biochar was performed. Thermal annealing of biochar makes it conductive and suitable for a variety of electrical and microwave applications. Composite samples of a thickness of 4 mm with 20 wt.% of sludge biochar provided a shielding effectiveness value of almost 10 dB.
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