화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.29, No.6, 765-771, December, 2018
DOI10.14478/ace.2018.1094  Export Citation
황화수소(H2S) 흡착성능 증진을 위한 하수슬러지 기반 흡착제 탄화조건 최적화 연구
A study on the Optimization of Sewage Sludge-based Adsorbent Carbonization Condition for Improving Adsorption Capacity of Hydrogen Sulfide (H2S)
최성열, 장영희, 김성수1, †
  • 경기대학교 일반대학원 환경에너지공학과
  • 1경기대학교 환경에너지공학과
Sung Yeol Choi, Young Hee Jang, and Sung Su Kim1, †
  • Department of Environmental Energy Engineering, Graduate School of Kyonggi University, 154-42 gwanggyosanro, Youngtong-ku, Suwon-si, Gyeonggi-do 16227, Korea
  • 1Department of Environmental Energy Engineering, Kyonggi University, 154-42 gwanggyosanro, Youngtong-ku, Suwon-si, Gyeonggi-do 16227, Korea
E-mail:
초록
본 연구에서는 각종 환경기초시설에서 발생하는 악취 유발물질 중 H2S를 처리하기 위한 하수슬러지 기반 흡착제의 흡착성능 증진을 위해 제조조건 중 탄화조건 최적화에 대한 연구를 수행하였다. 적용되는 흡착제는 하수처리장에서 발생하는 슬러지를 온도 및 승온속도와 같은 탄화조건을 달리하여 제조하였으며, 흡착제의 물리적 특성과 흡착성능과의 상관관계를 확인하였다. 실험결과 10 ℃/min의 승온속도로 900 ℃의 온도에서 탄화과정을 거친 슬러지의 흡착성능이 가장 우수하였으며, SEM, BET 분석을 통해 비표면적 및 기공특성(기공크기, 부피)이 흡착성능의 주요 인자임을 확인하였다. 최적 탄화조건 흡착제의 흡착성능을 증진시키기 위해 K 이온을 담지하였으나, 하수슬러지 기반 흡착제의 경우 큰 영향이 없는 것으로 확인하였다.
In this study, the optimization of carbonization conditions in manufacturing processes was performed to improve the absorption performance of sewage sludge based sorbent used for treating H2S out of all odorous substances generated by various environmental facilities. Adsorbents applied were manufactured from the sewage treatment plant under different carbonization conditions, such as temperature and heating rate, and the correlation between the adsorption performance and physical properties of the adsorbents was verified. As a result, the adsorption performance of sludge at 900 ℃ with a heating rate of 10 ℃/min was the best, and the SEM and BET analysis revealed that specific surface area and characteristics of pore (size, volume) were major parameters for the adsorption. In addition, the effect of K ions used for improving the adsorption performance of the optimum carbonization condition sorbent was insignificant for the sewage sludge based sorbent.
Keywords:H2S (hydrogen sulfide);carbonization;sewage sludge;adsorbent;odor
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