Optimal Recycling of Steel Scrap and Alloying Elements: Input-Output based Linear Programming Method with Its Application to End-of-Life Vehicles in Japan

摘要: Importance of end-of-life vehicles (ELVs) as an urban mine is expected to grow, more people in developing countries are experiencing increased standards living, while the automobiles increasingly made using high-quality materials meet stricter environmental and safety requirements. While most ELVs, particularly steel, have been recycled at high rates, quality issues not adequately addressed due complex use automobile materials, leading considerable losses valuable alloying elements. This study highlights maximal potential quality-oriented recycling ELV by exploring utilization methods scrap, sorted parts, produce electric-arc-furnace-based crude alloy steel with minimal Using linear programming on case Japanese economy 2005, we found that adoption parts-based scrap sorting could result recovery around 94–98% elements occurring parts (manganese, chro...