논문 상세보기
습식 플라즈마의 기체체류시간과 액기비에 따른 황화수소 및 부유미생물 동시제거 KCI 등재
Effects of gas retention time and liquid gas ratio for the simultaneous removals of hydrogen sulfide and bioaerosol in a wet-plasma process
- 언어KOR
- URLhttps://db.koreascholar.com/Article/Detail/291942
pp.16-21
Odor compounds and air-born microorganisms are simultaneously emitted from various aeration processes such as aerobic digestion, food-waste compositing, and carcass decomposition facilities that are biologically-treating wastes with high organic contents. The air streams emitted from these processes commonly contain sulfur-containing odorous compounds such as hydrogen sulfide(H2S) and bacterial bioaerosols. In this study, a wet-plasma method was applied to remove these air-born pollutants and to minimize safety issues. In addition, the effects of a gas retention time and a liquid-gas ratio were evaluated on removal efficiencies in the wet-plasma system. At the gas reaction time of 1.8 seconds and the liquid-gas ratio of 0.05 mLaq/Lg, the removal efficiency of bioaerosol was approximately 75 %, while the removal efficiency of H2S was lower than 20 %, indicating that the gaseous compound was not effectively oxidized by the plasma reaction at the low liquid addition. When the liquid-gas ratio was increased to 0.25 mLaq/Lg, the removal efficiencies of both H2S and bioaerosol increased to greater than 99 %. At the higher liquid-gas ratio, more ozone was generated by the wet-plasma reaction. The ozone generation was significantly affected by the input electrical energy, and it needed to be removed before discharged from the process.
2. 연구방법
2.1 연구대상
2.2 반응기 구성
2.3 측정 항목 및 방법
3. 결과 및 고찰
3.1 반응시간에 따른 대상물질 제거
3.2 습식플라즈마 액기비에 따른 대상물질 제거
4. 결 론
감사의 글
References
