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- W4313409195 abstract "To remove odorous gases generated by medical waste, adsorption capacities of selected odorous gases were analyzed. A polar gas (hydrogen sulfide) was selected along with nonpolar gases, including acetaldehyde, methyl mercaptan, and trimethylamine. Activated carbon was used as an adsorbent. A single-component odorous gas (100 ppm) was supplied at 1L/min; subsequently, the effective adsorption capacity was calculated as the amount adsorbed below 5 pp, of the emission concentration based on the breakthrough point. Activated carbon prepared using pitch precursors exhibited a higher effective adsorption capacity on the specific surface area and surface polar functional groups. Hydrogen sulfide (14.5 mg/g) exhibited the lowest effective adsorption capacity as a single-component odorous gas generated by medical waste, followed by acetaldehyde (18.4 mg/g), methyl mercaptan (43.3 mg/g) and trimethylamine (49.1 mg/g). Compared to nonpolar gases, polar gases exhibited lower effective adsorption capacity. The comparison of the adsorption characteristic of complex gases using the activated carbon adsorbent revealed that the breakthrough point was reached by hydrogen sulfide with a low adsorption capacity. Pitch-precursor activated carbon with a high specific surface area and a many surface polar functional groups demonstrated adsorption characteristics 1.5 times higher than those of commercial activated carbon. Therefore, it would be ideal to use activated carbon adsorbents by setting the minimum detectable concentration based on hydrogen sulfide to remove odors from medical waste." @default.
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- W4313409195 date "2022-12-31" @default.
- W4313409195 modified "2023-09-30" @default.
- W4313409195 title "Adsorption characteristics of odor gas from emitted from medical waste" @default.
- W4313409195 doi "https://doi.org/10.55079/jtee.2022.17.2.41" @default.
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