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논문 기본 정보

자료유형
학술저널
저자정보
김연희 (광주광역시 보건환경연구원) 문경란 (조선이공대학교 생명환경화학과) 윤상훈 (광주광역시 보건환경연구원) 김지혜 (광주광역시상수도사업본부) 임민화 (광주광역시보건환경연구원) 진재성 (광주광역시상수도사업본부) 양명승 (광주광역시보건환경연구원) 정희윤 (광주광역시보건환경연구원) 배석진 (광주광역시보건환경연구원) 정재근 (광주광역시보건환경연구원)
저널정보
한국수처리학회 한국수처리학회지 한국수처리학회지 제29권 제2호
발행연도
2021.1
수록면
21 - 33 (13page)

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초록· 키워드

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In this study, 182 industrial wastewater samples obtained from Gwangju were assigned to 16 industries to investigate the characteristics of organic indexes(TOC, NPOC, CODMn, and DOC). The average CODMn and TOC concentrations by industrial wastewater classification in Gwangju in descending order were as follows : other machinery and equipment manufacturing > painting and other film treatment > textile dyeing, cleaning, and finishing processing. The correlations between TOC and CODMn, NPOC, DOC showed high positive correlation coefficients which were more than 0.8. According to the revised Water Environment Conservation Act 2020 in which CODMn from wastewater discharge facilities was replaced with TOC, a CODMN concentration of 130 mg/L in an “Na” region where the volume of wastewater discharge is lower than 2,000 m3/day, corresponds to 75 mg/L TOC, and the concentration ratio of CODMN to TOC is 1.73. The average ratio of CODMn to TOC in five metropolitan cities (Gwang, Ulsan, Daejeon, Incheon, and Busan) was 1.55, and the converted TOC concentration corresponding to 130 mg/L CODMn was 84 mg/L. The average measurement ratio of CODMn to NPOC was 1.7, which was close to the CODMn to TOC ratio of 1.73. These results propose that TOC concentration in wastewater discharge from “Na” regions should be changed to 84 mg/L from the current 75 mg/L or TOC concentrations might be applicable to NPOC concentrations in all wastewater discharge facilities.

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