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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국환경관리학회 환경관리학회지 환경관리학회지 第12卷 第4號
발행연도
2006.12
수록면
213 - 220 (8page)

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초록· 키워드

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In order to determine the removal rate of non-biodegradable substances and the change of their structural properties, this study carried out an ozone-treatment experiment on leachate, benzene and parathioncollected from the landfill area of D City in Chungcheongnam-do and examined the change of the chemical properties of non-biodegradable substances. The conclusions of this study are as follows.
1. The main elements of non-biodegradable substances in landfill leachate were benzene, toluene, trichloroethane, trichloroethylene, xylene, etc. and the concentration of toluene was 15.7㎎/ℓ on the average, benzene 7.2㎎/ℓ, trichloroethane 1.1㎎/ℓ, trichloroethylene 0.75㎎/ℓ and xylene 0.5㎎/ℓ. Among them, benzene, toluene and trichloroethane are included in the list of organic toxic substances announced by USEPA. In addition, benzene, toluene and xylene, which are derivatives of benzene an aromatic compound, are classified as carcinogenic substances, so require safe disposal and management.
2. The change of area according to the length of ozonation time proved that ozone reduces the concentration non-biodegradable substances. In 10min ozonation, benzene was removed by 58% and parathion by 62.5%, so the removal rate of benzene was slightly lower than that of parathion, but ozonation was found to be effective in removing aromatic compounds and organic phosphate in agricultural chemicals.
3. According to the result of experimenting on the material balance of parathion, after 10min reaction of 3㎎/ℓ parathion solution, the residual rate of parathion was 43%, the removal rate was 31.3%, and diethyl p-nitrophenyl phosphate generated as a byproduct was 25.7%. Parathion was classified as a possible human carcinogen in the US EPA Guidelines in 1986 while diethyl p-nitrophenyl phosphate is regarded as not classifiable as to human carcinogenicity. Thus ozonation transformed a carcinogen into a non-carcinogenic substances

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ABSTRACT
Ⅰ. 서론
Ⅱ. 실험방법 및 장치
Ⅲ. 실험결과 및 고찰
Ⅴ. 결론
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