1차 비철금속제련시설에서의 납과 카드뮴 분포특성
Lead and Cadmium Distribution Characteristics in the Primary Non-ferrous Metal Smelting Plants
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The lead (Pb) and cadmium (Cd) distribution characteristics was investigated in the zinc, lead and copper smelting plants for the assessment of anthropogenic Pb and Cd emitted from the non-ferrous smelting plants. To assess the anthropogenic Pb and Cd emitted from a smelting plant, the input materials and output materials were collected from each process. The materials were sampled over the three times at each sampling point and analyzed with ICP or ICP-MS. According to the input materials used in the non-ferrous smelting plants, the ores were main input source of Pb and Cd. The Pb and Cd included in ores were produced the products throμgh the roasting process and casting process. In addition from the roasting process and casting process many byproduct or process waste were generated as the output materials emitted into the environment. Among the output materials emitted into the environment, the sludge was main source of Pb and Cd emitted into the environment. The emission amount of sludge was not so much, but the concentration of Pb and Cd in the sludge was very high. Therefore, the sludge dumped in landfill site should be controlled with Pb and Cd as content value, not as leaching value
Abstract
The lead (Pb) and cadmium (Cd) distribution characteristics was investigated in the zinc, lead and copper smelting plants for the assessment of anthropogenic Pb and Cd emitted from the non-ferrous smelting plants. To assess the anthropogenic Pb and Cd emitted from a smelting plant, the input materials and output materials were collected from each process. The materials were sampled over the three times at each sampling point and analyzed with ICP or ICP-MS. According to the input materials used in the non-ferrous smelting plants, the ores were main input source of Pb and Cd. The Pb and Cd included in ores were produced the products throμgh the roasting process and casting process. In addition from the roasting process and casting process many byproduct or process waste were generated as the output materials emitted into the environment. Among the output materials emitted into the environment, the sludge was main source of Pb and Cd emitted into the environment. The emission amount of sludge was not so much, but the concentration of Pb and Cd in the sludge was very high. Therefore, the sludge dumped in landfill site should be controlled with Pb and Cd as content value, not as leaching value
참고문헌 (17)
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