상동 중석 폐재댐 토양 오염평가 및 관리 방안 연구 (A Study on the Pollution Evaluation and Management of Tungsten Waste Dam in Sangdong)

서지정보

· 발행기관 : 한국환경과학회
· 수록지 정보 : 한국환경과학회지 / 33권 / 12호 / 933 ~ 945페이지
· 저자명 : 정병학

초록

As a result of analyzing the tungsten tailings accumulated in the tungsten waste dam and the soil within 5 meter around the waste dam in this study, the pollution coefficient (C) of the tungsten tailings of the waste dam was in the order of Pb < Zn < Cu < Cd < Cr < As, and the pollution coefficient (C) of the soil within 5 meters of the waste dam was in the order of Zn < Pb < Cd < Cu < Cr < As. In the pollution degree evaluation, the pollution degree (C) of the tungsten tailings of the waste dam was 117.27 and the pollution degree (C) of the soil within 5 meters of the waste dam was 34.85, which was quite high in the pollution degree evaluation. As for the pollution index, PI, the pollution index of the tungsten tailings of the waste dam was evaluated as high as 10.67, and in the soil within 5 meters of the waste dam, the pollution index was evaluated as being contaminated at a moderate level of 2.57. Tungsten tailings contain large amounts of heavy metals and low concentrations of nutrients, making it difficult to naturally introduce plants into waste dam. Therefore, if the natural introduction of plants is induced by mixing low pH and rich in organic nutrients with tungsten tailings to improve the soil environment, it is thought that the growth experimental treatment mixed with tungsten tailings and coal waste has a survival rate of 2.17 times, stem length growth of 2.50 times, colony diameter size growth of 1.78 times, colony population differentiation of 2.60 times, and fresh weight of 3.45 times. If the natural introduction of plants is induced by mixing low pH and rich coal waste with tungsten tailings, which are basic soil and nutrient deficient, it will be possible to prevent erosion of tailings by utilizing the plant ecosystem around the tungsten tailings and waste dam.

영어초록

As a result of analyzing the tungsten tailings accumulated in the tungsten waste dam and the soil within 5 meter around the waste dam in this study, the pollution coefficient (C) of the tungsten tailings of the waste dam was in the order of Pb < Zn < Cu < Cd < Cr < As, and the pollution coefficient (C) of the soil within 5 meters of the waste dam was in the order of Zn < Pb < Cd < Cu < Cr < As. In the pollution degree evaluation, the pollution degree (C) of the tungsten tailings of the waste dam was 117.27 and the pollution degree (C) of the soil within 5 meters of the waste dam was 34.85, which was quite high in the pollution degree evaluation. As for the pollution index, PI, the pollution index of the tungsten tailings of the waste dam was evaluated as high as 10.67, and in the soil within 5 meters of the waste dam, the pollution index was evaluated as being contaminated at a moderate level of 2.57. Tungsten tailings contain large amounts of heavy metals and low concentrations of nutrients, making it difficult to naturally introduce plants into waste dam. Therefore, if the natural introduction of plants is induced by mixing low pH and rich in organic nutrients with tungsten tailings to improve the soil environment, it is thought that the growth experimental treatment mixed with tungsten tailings and coal waste has a survival rate of 2.17 times, stem length growth of 2.50 times, colony diameter size growth of 1.78 times, colony population differentiation of 2.60 times, and fresh weight of 3.45 times. If the natural introduction of plants is induced by mixing low pH and rich coal waste with tungsten tailings, which are basic soil and nutrient deficient, it will be possible to prevent erosion of tailings by utilizing the plant ecosystem around the tungsten tailings and waste dam.

참고자료

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