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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 李相一
- 발행연도
- 2016
- 저작권
- 충북대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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Phenol compound is an organic pollutants typically produced in the coking, pulp mills, paint and dyes industries. Phenol has been classified as a priority pollutant in the Unites States Environmental Protection Agency(USEPA) list because of toxic, mutagenic, teratogenic and non-biodegradable properties.
Phenol compounds in wastewater is difficulty in treatment because of higher salinity, acidity, COD and non-biodegradable properties. So there is limitation to
* A thesis for the degree of Master in February 2016.
control phenol wastewater using the so far conventional process. An alternative method of treating such wastewater is Advanced oxidation processes(AOPs). Ozone(O3) process can easily destroy the phenol compounds using its highly reactivity with free radicals, especially hydroxyl radicals.
In this study, magnetite was developed as an ozonation assistance material for the degradation of phenol in water. Magnetite NPs have attracted widespread attention as their unique properties, such as high surface area, chemical reactivity, the nearly full polarization, inexpensive and supermagnetisim so that magnetite is easily separated and recovered.
In order to evaluate the adsorption on magnetite, experiments were performed in two different ways(single ozonation, Ozonation/Magnetite). 10 g L-1 of magnetite and 200 mg L-1-phenol(C0: 511.21 mg L-1) water was mixed generating the ozone(1g hr-1). After 3 hr, phenol removal was 100% and COD removal was 84.35%. The degradation efficiency of phenol and COD increased about each 28.84, 34.10% due to the adsorption of magnetite.
Phenol compounds in wastewater is difficulty in treatment because of higher salinity, acidity, COD and non-biodegradable properties. So there is limitation to
* A thesis for the degree of Master in February 2016.
control phenol wastewater using the so far conventional process. An alternative method of treating such wastewater is Advanced oxidation processes(AOPs). Ozone(O3) process can easily destroy the phenol compounds using its highly reactivity with free radicals, especially hydroxyl radicals.
In this study, magnetite was developed as an ozonation assistance material for the degradation of phenol in water. Magnetite NPs have attracted widespread attention as their unique properties, such as high surface area, chemical reactivity, the nearly full polarization, inexpensive and supermagnetisim so that magnetite is easily separated and recovered.
In order to evaluate the adsorption on magnetite, experiments were performed in two different ways(single ozonation, Ozonation/Magnetite). 10 g L-1 of magnetite and 200 mg L-1-phenol(C0: 511.21 mg L-1) water was mixed generating the ozone(1g hr-1). After 3 hr, phenol removal was 100% and COD removal was 84.35%. The degradation efficiency of phenol and COD increased about each 28.84, 34.10% due to the adsorption of magnetite.
목차
제 1 장 서 론 11.1 연구배경 11.2 연구 목적 및 내용 3제 2 장 문헌 고찰 42.1 페놀의 독성 42.2 페놀의 처리방안 62.2.1 활성탄 흡착 62.2.2 UASB를 이용한 페놀 처리 82.3 O3의 페놀 산화 92.3.1 O3 분해 메카니즘 92.3.2 O3에 의한 유기물 산화분해반응 122.3.3 O3에 의한 페놀 산화분해반응 152.4 Magnetite 18제 3 장 실험의 재료 및 방법 203.1 실험재료 203.1.1 O3 발생기 203.1.2 Magnetite의 합성 233.2 실험방법 263.2.1 O3 및 O3-Magnetite 공정에 의한 페놀의 O3산화반응 263.2.2 운전 인자에 따른 O3 및 O3-Magnetite 공정의 페놀 제거 283.2.3 물벼룩 표준급성독성 실험 293.3 분석방법 30제 4 장 실험 결과 314.1 각 공정에 따른 페놀 산화 특성 314.2 O3 및 O3/Magnetite 처리방법에 따른 페놀산화특성 334.2.1 처리수의 페놀과 COD간의 상관관계 334.2.2 페놀 농도에 따른 COD 변화 374.2.3 페놀 농도에 따른 속도상수 비교 404.2.4 Magnetite 주입량에 따른 영향 464.3 물벼룩 생태독성을 통한 처리수의 독성평가 48제 5 장 결 론 49참고문헌 51
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