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Elution Safety of Recycled Plastic/EAF Dust Composites by Using Leaching Test  

Kang, Young-Goo (Department of Safety System Engineering, Hoseo University)
Song, Jong-Hyeok (Graduate School of Venture, Hoseo University)
Publication Information
Journal of the Korean Society of Safety / v.18, no.4, 2003 , pp. 85-91 More about this Journal
Abstract
In this study, We have investigated leaching characteristics of heavy metals for recycled plastic composites containing EAF(Electric Arc Furnace) dust & EAF slag. EAF dust & EAF slag used that is generated in the 3 steel-making compaines in domestic. The physical and chemical properties of EAF dust & slag was examined by measuring specific surface area. porosity, oil absorption test and chemical wetting analysis etc. Results of total analysis indicated that EAF dust, slag contained significant amount of hazardous metals such as Cu, Pb, Cd and Cr. But, In the leaching test of the recycled plastic composites containing EAF dust, slag by Korean Standard Leaching Procedure, composites shows much lower leaching concentration of heavy metals. It was concluded that the recycled plastic composites containing EAF dust, slag showed good physical and chemical characteristics. This means that the EAF dust, slag can be effectively used as a functional filler.
Keywords
electic arc furnace dust; electic arc furnace slag; heavy metal; extraction; leaching test; recycled plastics; composites;
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