• Title/Summary/Keyword: 부원

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Recycling of the Waste Rock and Tailings from Yangyang Iron Mine (양양철광산 선광 부산물의 순환자원화)

  • Jung, Moon Young;An, Yong Hyeon;Kim, Young Hun
    • Resources Recycling
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    • v.25 no.4
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    • pp.23-31
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    • 2016

  • It was found that there was no problem in recycling by-products (waste rock and tailings) from Yangyang iron mine themselves through matter conversion because they are not hazardous according to results of KSLT method. In case of using tailings as sub-materials of cement, it recommended the use of less than 3% tailings dosage not to exceed 0.6% of total alkali ($R_2O$) content based on standard quality of portland cement (KS L 5201). Non sintered eco-brick corresponding to class 1 quality of recycled clay brick (KS I 3013) can replace 15% of cement with tailings and 100% of general fine aggregate with waste rock from iron mine. As mentioned above, recycling the by-products (waste rock and tailings) as sub-materials of cement and non sintered eco-brick could gain both environmental and economic benefits, that is, reduction of scale and maintenance cost of tailing ponds, decrease of energy use and $CO_2$ emission.

  • https://doi.org/10.7844/kirr.2016.25.4.23 인용 PDF KSCI