The simultaneous capture of mercury and fine particles by hybrid filter with powder activated carbon injection
- The simultaneous capture of mercury and fine particles by hybrid filter with powder activated carbon injection
- 정종수; Ha-Na Jang; Seung-Ki Back; Jin-Ho Sung; Youn-Suk Kang; Yong-Chil Seo
- mercury; fine particles; hybrid filter; activated carbon; capture
- Issue Date
- Environmental pollution
- VOL 237-540
- The hybrid filter (HF) was newly designed and operated with powder activated carbon (PAC) injection to capture mercury and fine particulate matter in the coal power plant. With PAC injection in HF operation, the capture efficiency of elemental mercury was clearly enhanced. When the injection rate of PAC increased from 0 to 20  mg/m3, the speciation fraction of elemental mercury significantly decreased from 85.19% to 3.76% at the inlet of the hybrid filter. The speciation fraction of oxidized mercury did not vary greatly, whereas the particulate mercury increased from 1.31% to 94.04%. It was clearly observed that the HF played a role in the capture of mercury and fine PM by leading the conversion of elemental mercury as particulate mercury and the growth of PM via electrode discharge in the HF operation with PAC injection.
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