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제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Degradation of pyrene in cetylpyridinium chloride solution by pyrite Fenton reaction

등록일
2012년 2월 21일 10시 50분 03초
접수번호
1302
발표코드
ENVR.P-1344 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
환경에너지
저자 및
공동저자
최경훈, 이우진
KAIST 건설 및 환경공학과, Korea
Degradation of pyrene with cetylpyridinium chloride (CPC) in pyrite Fenton system was investigated. Significant portion of pyrene (61%) on pyrite surface without CPC was adsorbed while relatively small sorption (15%) on pyrite surface was observed in the presence of CPC. Approximately, 96% of pyrene with CPC was removed by the pyrite Fenton system in 180 min, while 35% of pyrene with CPC was removed by classic Fenton system. The degradation pattern of pyrene with CPC showed pseudo-1st-order reaction kinetics (0.0194 min?1) while pyrene without CPC in pyrite Fenton system followed 2nd-order reaction kinetics. Transformation study on pyrene with and without CPC in pyrite Fenton system showed that there was no significant toxic by-product. The degradation of pyrene with CPC by pyrite Fenton reaction resulted in the transformation to some acids such as isooctyl phthalate and n-octadecanoic acid. Meanwhile, CPC was degraded to CO2 and H2O accompanied with ammonia production by pyrite Fenton reaction. These results suggest that pyrite Fenton system can be a novel remediation alternative to treat groundwater and wastewater containing poly aromatic hydrocarbons solubilized in surfactants emitted from soil washing processes.

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