• Title/Summary/Keyword: 샘플채취 용기

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A study on the Analysis Method and Pollution Measure of existed VOCs during the Bulk Liquid Cargo Operation at Vessels (산적 액체 화물 작업중 배출되는 VOCs 분석방법 및 오염 측정 연구)

  • Cheong, Kwang-Hyun;Lee, In-Ho
    • Proceedings of KOSOMES biannual meeting
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    • 2007.05a
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    • pp.21-26
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    • 2007
  • The Protocol adopted in Sep. 1997 included the new Annex VI of MARPOL 73/78, which entered into force on 19 May 2005. Revision for the accept MARPOL Annex VI with make public on 29 Dec. 2005 and enforce on 29 Jun. 2006. For all that not installation at oil terminal or if installed do not used. The purpose of this study is to research and evaluate the methods of sampling and analysis, and the pollution measure of existed VOCs during the bulk liquid cargo operation at vessels. As the sampling instrument of VOCs, Tedlar bag has the effect of decrease in concentration by the chemical reaction and absorption, and the method using the solvent extraction has error cause because of the extraction, the absorption tube has error by the breakthrough. But canister is the best sampling instrument because of having no sampling mistake. The study on VOCs emission is not sufficient for the research on the pollution cause and the analysis data on the HAP during the bulk liquid cargo operation at vessels. Hence, monitoring on the management hazardous VOCs need to be continued during the cargo operation at vessels and VOCs management field must be study for the make progress at a good pace for reason of crew's health.

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Preparation of Photosynthesis Nanofiber Composite Membrane by Using Chlorophyll and Polymer Nanofiber (식물 엽록소와 고분자 나노섬유를 이용한 광합성 나노섬유복합막의 제조)

  • Yun, Jaehan;Jang, Wongi;Byun, Hongsik
    • Membrane Journal
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    • v.25 no.1
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    • pp.75-83
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    • 2015
  • In this study, chlorophylls were been extracted from common local plants, deposited on polypropylene (PP) substrate using various approaches, and the oxygen generation effect of the chlorophylls were investigated. The loading of chlorophylls on the substrates was achieved by dipping and spraying methods, where the spraying coating showed overall better results regarding oxygen generation from the combustion experiments in the closed vessel or in the isolated vacuum oven cell than those of dip coating. In addition, a composite substrate was prepared by nylon6/6 nanofiber on the PP substrate, and it exhibited an increase in the activation of chlorophylls. In the case of samples containing titanium dioxide ($TiO_2$), the reaching time of oxygen concentration from 16% to 21% and the combustion test using a candle for a sample with 50% chlorophylls showed similar results to those of a sample without $TiO_2$. As such, combining a spray coating and $TiO_2$ incorporation into gas separation membrane systems are expected to be useful to understand the fundamentals of material properties for their applications as oxygen generation membranes and air filtration systems.