12-IE-22-Feb-08

12-IE-22-Feb-08 - Industrial Ecology Winter 2008 Session 12...

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Unformatted text preview: Industrial Ecology Winter 2008 Session 12 February 22 Reuse and Recycling: Reuse and Recycling: From Supply Chains to From Supply Chains to Supply Loops Supply Loops Industrial Ecology Winter 2008 Session 12 February 22 Lee & Billington, for example, define a supply chain as a network of facilities that procure raw materials, transform them into intermediary goods and then final products, and deliver the products to customers through a distribution system. What happens to the product after sale and delivery is of no concern for supply chain managers End-of-life product disposal Product demand & use Raw materials mining Primary materials production Component manufacture Final product assembly Product sale and delivery Traditional supply chains end with the sale and delivery of the final product From supply chains to supply loops From supply chains to supply loops Industrial Ecology Winter 2008 Session 12 February 22 Supply loops divert end-of-life products from landfill and reprocess these products, their components or their materials into secondary resources which replace primary resources in forward supply chains. End-of-life product disposal Product demand & use Raw materials mining Primary materials production Component manufacture Final product assembly Product sale and delivery Component re- processing Product re- processing Materials re- processing Eol product collection & inspection Industrial Ecology Winter 2008 Session 12 February 22 End-of-life product disposal Product demand & use Raw materials mining Primary materials production Component manufacture Final product assembly Product sale and delivery Component re- processing Product re- processing Materials re- processing Eol product collection & inspection A supply loop is constrained when it is not able, for technical or economic reasons, to reprocess all targeted arising end-of-life products into secondary output that is marketable a above-cost prices. The reasons can be: Limited collection of end-of-life products Limited feasibility of reprocessing Limited market demand for the reprocessed secondary resources Industrial Ecology Winter 2008 Session 12 February 22 Primary production Disposal Use Supply Loops Environmental Benefits Supply Loops Environmental Benefits 1. Diversion of product or process waste from landfill or incineration by collecting them for economic value recovery via reprocessing. 1. Generation of secondary resources from product or process waste and displacement of primary resources, i.e. materials, components & products. The environmental benefits from displacement are frequently more significant than the benefits from avoided landfill / incineration....
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12-IE-22-Feb-08 - Industrial Ecology Winter 2008 Session 12...

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