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논문 기본 정보

자료유형
학술저널
저자정보
이지영 (경상대학교) 조해민 (경상대학교) 김수호 (경상대학교) 이연희 (경상대학교) 김철환 (경상대학교)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제52권 제3호(통권 제194호)
발행연도
2020.6
수록면
106 - 112 (7page)
DOI
10.7584/JKTAPPI.2020.06.52.3.106

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초록· 키워드

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In this study, we evaluated the effect of electron-beam irradiation on the water quality of the white water generated in paper mills. Four samples of white water were collected from a fine paper mill and from a specialty paper mill. Changes in the water quality were observed, depending on the amount of electron-beam irradiation. Two samples of white water were obtained from the fine paper mill’s disc-filtration system. When the electron-beam dose was increased from 3 to 9 kGy, the pH of these samples decreased slightly, but no significant changes in electrical conductivity or turbidity were observed. However, the total dissolved solids (TDS) and chemical oxygen demand (COD) decreased. The differences in the water-quality trends were not large among the white-water samples. White water from the special paper mill was collected before it entered the ozone-oxidation tank and after it exited from the tank, and the properties of the samples were examined after electron-beam irradiation (10 kGy). The pH, electrical conductivity, and turbidity exhibited the same tendencies as for the white water obtained from the fine paper mill, and the TDS and COD also decreased. In particular, when the intensity of electron-beam irradiation of the ozonated white water was increased, the TDS, COD, and chromaticity improved significantly. We conclude that electron-beam irradiation reduces the COD and chromaticity of white water.

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UCI(KEPA) : I410-ECN-0101-2020-586-000841199