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Supplemental Information
Development of a Novel Electrostatic Precipitator System
Using a Wet-porous Electrode Array
Woojin Kim1*, Heekyung An1, Dongmok Lee1, Woojong Lee1, Jae Hee Jung2*
1Technology Convergence R&BD Group, Korea Institute of Industrial Technology, 320 Techno-
sunhwan-ro, Yuga-myeon, Dalseong-gun, Daegu, 711-880, Republic of Korea
2Center for Environment, Health, and Welfare Research, Department of Energy and Environmental
Engineering, Korea University of Science and Technology (UST), Korea Institute of Science and
Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
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Figure S-1. (a) Surface deviations of the liquid layer on the wet porous electrode. (b) X-ray
photograph and (c) the surface roughness distribution of the wet porous electrode. These data were
analyzed by a X-ray micro-focus computed tomography scanner (Model phoenix v|tome|x m, GE
Measurement & Control Solutions, Billerica, MA, USA). The surface deviations of the liquid layer
were distributed within ±30 µm from the reference plane, a significant improvement compared with
that of a traditional wet ESP. Generally, the thickness of the liquid layer in a traditional wet ESP is
approximately 4–6 mm, and the surface deviation of the liquid layer is ±180~500 µm from the
reference plane (Dors et al., 1998; Saiyasitpanich et al., 2006; Lin et al., 2010).
2
References
Dors, M., Mizeraczyk, J., Czech, T., Rea, M. (1998). Removal of NOx by DC and pulsed corona
discharges in a wet electrostatic precipitator model. J. Electrostat., 45:25‒36.
Lin, G. Y., Tsai, C. J., Chen, S. C., Chen, T. M., Li, S. N. (2010). An efficient single-stage wet
electrostatic precipitator for fine and nano-sized particle control. Aerosol Sci. Tech., 44:38‒45.
Saiyasitpanich, P., Keener, T. C., Lu, M., Khang, S. J., Evans, D. (2006). Collection of ultrafine
diesel particulate matter (DPM) in cylindrical single-stage wet electrostatic precipitators. Environ.
Sci. Technol., 40:7890‒7895.
(b) (c)n= 2000
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