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자료유형
학술저널
저자정보
황상연 (고등기술연구원연구조합) 이치원 ((주)마이크로원) 이승우 (영남대학교)
저널정보
한국폐기물자원순환학회 한국폐기물자원순환학회지 한국폐기물자원순환학회지 제35권 제6호
발행연도
2018.1
수록면
541 - 552 (12page)

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Polluting gases emitted from industrial sites take compound forms consisting of gaseous and particulate phases. Localization of PTFE membrane filters has thus been initiated to remove particulate materials and mercury, which is aheavy and hazardous metallic element. More specifically, a PTFE membrane filter was fabricated by thermal laminatingtechnology to vary porosity on the filter surface for removal of particulate materials thereon. Optimized equi-biaxialstretching ratio control enables minimization of large-size pore formation with an average pore size of 0.58 μm andimproved air permeability of 8.03 cm3/cm2/sec. Various adsorbents were tested for removal of mercury vapor by surfacetreatment of the PTFE membrane filter. The filter’s surface was further altered using functional amine group compounds:one composed of silane coupling agent (APTMS) was found suitable as a mercury adsorbent. When ACF with a largesurface area was used as support material, mercury removal efficiency increased threefold to 0.162 mg/g-ACF. Furthermore, the developed PTFE membrane filter was tested in its capacity of differential pressure and filtering efficiencyusing a pilot scale particulate removal unit. Stable and consistent differential pressure was maintained during long-termoperation and less frequent periods of filter shutdown due to pores filling with 99.96% of particulate removal efficiency,which was more than satisfactory filtration efficiency.

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