Dielectric properties of sewage biosolids: measurement and modeling

Brodie, Graham, Destefani, Ryan, Schneider, Philip A., Airey, Lyn, and Jacob, Mohan V. (2014) Dielectric properties of sewage biosolids: measurement and modeling. Journal of Microwave Power and Electromagnetic Energy, 48 (3). pp. 147-157.

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The measurement of dielectric properties of materials is critical to understanding the electromagnetic field distribution in the materials. Reliable knowledge of the dielectric constant is also important when designing a microwave pyrolysis unit for effective pyrolysis of materials of interest. The dielectric probe technique was used to evaluate the dielectric properties of biosolids. Biosolid samples were collected from various sources and the dielectric properties were measured across the microwave frequency range of 1.0 GHz to 10.0 GHz. The dielectric constant of the materials varied in the range from 80 to 2 and depended mainly on the origin of the sample, the electrical conductivity and the moisture content of the material. A mathematical model was developed to accurately predict the values of complex permittivity. This model was verified using the measured data.

Item ID: 37893
Item Type: Article (Research - C1)
ISSN: 0832-7823
Keywords: microwave, dielectric properties, sewage sludge, biosolids, modeling
Funders: Smart Water Fund
Date Deposited: 18 Mar 2015 07:33
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090699 Electrical and Electronic Engineering not elsewhere classified @ 50%
02 PHYSICAL SCIENCES > 0299 Other Physical Sciences > 029999 Physical Sciences not elsewhere classified @ 50%
SEO Codes: 87 CONSTRUCTION > 8798 Environmentally Sustainable Construction > 879804 Management of Solid Waste from Construction Activities @ 100%
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