Performance Evaluation of a Novel Pilot-Scale Wet Electrostatic Precipitator in a Bio-Drying-Assisted Solid Recovered Fuel (SRF) Generation Plant: Particulate Matter (PM) Collection Efficiency

Min-Sang Kim, Hongmok Jo, Yeongmi Park, Uijeong Han, Ajay Thapa, Kyunghyun Kim, Du Hyeong Choi, Gwang Jo Park and Si-Kyung Cho
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Min-Sang Kim: Department of Biological and Environmental Science, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Korea
Hongmok Jo: Department of Biological and Environmental Science, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Korea
Yeongmi Park: Department of Biological and Environmental Science, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Korea
Uijeong Han: Department of Biological and Environmental Science, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Korea
Ajay Thapa: Department of Biological and Environmental Science, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Korea
Kyunghyun Kim: Jinenertech, 21 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Korea
Du Hyeong Choi: Jinenertech, 21 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Korea
Gwang Jo Park: Jinenertech, 21 Gukhoe-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Korea
Si-Kyung Cho: Department of Biological and Environmental Science, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang 10326, Korea

Sustainability, 2022, vol. 14, issue 14, 1-11

Abstract: The production of solid recovered fuel (SRF) from sewage sludge has been credited with facilitating Korea’s waste management shift toward a resource circular economy. In this study, a novel pilot-scale wet electrostatic precipitator (WESP) was developed and installed in a bio-drying-assisted solid recovered fuel (SRF) generation plant for the first time. To investigate the performance of the novel WESP, various sizes of particulate matter, i.e., total particle matter (PM), particle matter smaller than 10 μm (PM 10 ), and particle matter smaller than 0.1 μm (PM 0.1 ), collection efficiencies were evaluated and demonstrated promising performances. Under optimal operating conditions (flow rate of 5 m 3 /min and an applied voltage of 30 kV), 99.76% PM and 91% PM 10 collection efficiencies were achieved, and the PM concentration was 0.16 mg/m 3 , which met the exhaust emission standard. However, a dramatic increase in PM 0.1 was observed and could be explained by the break-up theory, binary homogenous nucleation, and ion-induced nucleation. The experimental findings could serve as useful information to understand the WESP system.

Keywords: wet electrostatic precipitator; particulate matter; collection efficiency; sewage sludge; solid recovered fuel (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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