abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Stable nitrate reduction over multiple recycles by eco-friendly bimetallic catalyst

등록일
2014년 8월 28일 16시 23분 16초
접수번호
1232
발표코드
ENVR.P-1282 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
환경에너지
저자 및
공동저자
HAMIDSHANAWAR, 이우진1,*
한국과학기술원(KAIST) 건설및환경공학과, Korea
1한국과학기술원(KAIST) 건설 및 환경공학과, Korea
Potable water resources have been facing sever threats due to anthropogenic activities. Consequently, nitrate pollution is one of the most critical problem causing deterioration of surface and groundwater resources. Nitrate pollution potentially causes serious issues to environmental ecology and human health. Among denitrification techniques, catalytic nitrate reduction form water/wastewater has proven to be efficient, faster and reliable method. However, more studies are required to formulate eco-friendly catalyst and catalytic process to treat real groundwater for stable and selective nitrate reduction. In this study, we demonstrated stable nitrate reduction in real groundwater samples over multiple recycles using Cu-Pd bimetallic catalyst supported by hematite (Cu-Pd/hematite). All the experiments were performed in batch mode. More than 95% nitrate reduction was observed over four recycles by Cu-Pd/hematite catalyst. Nitrogen selectivity was observed in the range of ? 60% in all recycling batches. Nitrite selectivity was negligible (>1%), while about 40% ammonium selectivity was observed in all recycling experiments. Inductively coupled plasma mass spectrometry (ICP-MS) analysis revealed that negligible Cu and Pd leaching occurred during all recycling batches. The results from this study showed that Cu-Pd-hematite is a stable catalyst with respect to recycling and nitrate reduction, with relatively higher nitrogen selectivity

상단으로