The simultaneous capture of mercury and fine particles by hybrid filter with powder activated carbon injection

Title
The simultaneous capture of mercury and fine particles by hybrid filter with powder activated carbon injection
Authors
정종수Ha-Na JangSeung-Ki BackJin-Ho SungYoun-Suk KangYong-Chil Seo
Keywords
mercury; fine particles; hybrid filter; activated carbon; capture
Issue Date
2018-06
Publisher
Environmental pollution
Citation
VOL 237-540
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/69069
ISSN
0269-7491
Appears in Collections:
KIST Publication > Article
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