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학술저널
저자정보
정오용 (전남대학교 환경시스템공학과) 윤형선 (전남대학교 환경시스템공학과) 서성규 (전남대학교)
저널정보
한국환경기술학회 한국환경기술학회지 한국환경기술학회지 제20권 제1호
발행연도
2019.1
수록면
60 - 66 (7page)

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The purpose of this study is to investigate the recycling of PVC process sludge generated from the petrochemical plants and to analyze the basic properties of recycled powder and raw materials. In order to understand the physico-chemical properties of PVC and ABS process sludge, the analyses of TGA, EA, SEM, FT-IR were performed for measuring apparent specific gravity, elements, surface morphology and chemical property. In the case of three component, the average water content was 50.7 %, the combustible was 45.3 %, the ash was 4.1 %, and the apparent specific gravity was 0.8 g/ml. The TGA results of samples showed that the pyrolysis characteristics of New and P-1 samples were similar, P-2 had the least weight loss. The maximum weight reduction for PVC samples was shown to be weight reduction in the order of P-2 < P-1 < New at 480°C. The EA showed that the highest C component was 69.4 %, the N component 10.5 %, the O component 10.4 %, the H component 9.5 %, and the S component the lowest 0.3 %. The FT-IR results confirmed peaks overlapping at peaks 3437 cm-1, 2969-2850 cm-1, and 1630~610 cm-1, which were confirmed to have inherent characteristics of PVC. A new type of peak appeared at 2360~2340 cm-1, peak of regenerated PVC powder. The SEM results showed that the new PVC powder showed a rounded image with a uniform size array and the recycled PVC powder showed a plate-like image with rounded shapes. On the other hand, heavy metals and hazardous components were not detected.

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