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- W3215427114 abstract "In 1987, the national industrial complex began to build wastewater treatment facilities, and the Yeosu National Industrial Complex is a large-scale industrial complex in which Korea''s representative heavy and chemical companies reside. In this study, in order to review the efficient sludge treatment method for the Jungheung Industrial Complex wastewater treatment plant as a research object, the physicochemical characteristics of the wastewater sludge were analyzed to examine ways to efficiently convert resources into resources. The Jungheung Wastewater Treatment Plant generated 9,200 tons/year of sludge in 2019, and the treatment cost was 1,253 million won per year. As a result of three components analysis of wastewater sludge, moisture was in the range of 70 to 91 %, and combustible matter was in the range of 5 to 19 %, and in the case of ash, it was in the range of 1 to 17 %. The average low calorific value of the subjects was 2,050 kcal/kg, and even within the same industry, the low calorific value was shown in the subjects with a low ratio of combustible powder and a relatively high content of ash. As a result of analysis of the five elements C, H, N, S, and O of wastewater sludge, the carbon value ranged from 3.17 to 49.72 %, and most subjects with high calorific value had high C content. There was no subject whose heavy metal content in the wastewater sludge exceeded the standard value. As a result of the analysis of inorganic elements, certain elements were found to be high depending on the characteristics of the industry, such as manganese cobalt (Co) being high in the petrochemical industry." @default.
- W3215427114 created "2021-12-06" @default.
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- W3215427114 date "2021-10-31" @default.
- W3215427114 modified "2023-09-23" @default.
- W3215427114 title "Physicochemical Analysis of Wastewater Sludge in Yeosu National Industrial Complex" @default.
- W3215427114 doi "https://doi.org/10.26511/jkset.22.5.8" @default.
- W3215427114 hasPublicationYear "2021" @default.
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