end of product life: closing the loop isqa 511 mellie pullman
TRANSCRIPT
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END OF PRODUCT LIFE:CLOSING THE LOOP
ISQA 511
Mellie Pullman
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Overview
EOL Supply Chain Management & 3 Rs
Landfill vs. Recycling
Recycling & Innovation
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EOL Supply Chain & 3Rs
Disposal-Land Fill & Incinerate
Pro
duct Ta
ke-
Back
Recycling with Disassembly
Pro
duct
Use
Distributor & Customer
Final Assembly (OEM)
Raw Material Suppliers
Subassembly
ComponentSuppliers
Recycling without
Disassembly
Remanufacture & Reuse
Secondary Markets
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US Municipal Waste Stream Generated from Products
Category Thousand tons
Durable Goods (tires, appliances, furniture, carpets, etc.)
45,670
Non Durable Goods (newspapers, books, plastic utensils, disposable diapers, etc.)
58,710
Glass Packaging 10, 050Steel Packaging 2,550Aluminum Packaging 1,880Paper & Paperboard Packaging 38,280Plastics Packaging 13,010Wood Packaging 10,670Other Misc. Packaging 310
Source: Franklin Associates (2008), a Division of ERG.
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The Three Principles Of Waste & Pollution Reduction:
There are three different strategies to reduce or prevent waste/pollution:
• Dematerialization: Increase resource productivity (use less to achieve the same function)
• Material/process substitution (different material/process to achieve the same)
• Reuse & recycling (use material and value-added over and over)
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Dematerialization examples
• Advanced High Strength Steels (AHSS) in automotive applications (25% weight reduction)
• Mass reduction of beverage containers
• Continuous casting technology in metals production
• Drip lines instead of sprinklers for irrigation
• Spaceframe design concept
• Miniaturization in the electronics industry (e.g. precious metal content in consumer electronics)
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Material substitution examples
• Steel, aluminum, magnesium, composites in automotive
• Steel, concrete, timber in construction
• Glass, steel, aluminum, plastics, paper in packaging
• CFCs instead of ammonia, chloromethane, sulfur dioxide
• MTBE instead of lead (TEL) as antiknock in fuels
• Bio-based plastics versus petroleum-based plastics
• Lead-based solder versus lead-free solder
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End-of-lifeproduct disposal
Product demand & use
Raw materials
mining
Primary materials
production
Component
manufacture
Finalproduct
assembly
Productsale anddelivery
Component
re-processing
Productre-
processing
Materialsre-
processing
Eol productcollection
& inspection
A supply loop is constrained when it is not able to reprocess all targeted end-of-life products into secondary output marketable at 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
Reuse and Recycling (Supply Loops, Closed-Loop Supply Chains)
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Recycling Rates
Batteries are recycled at a rate of 99% Metal has next highest recycling rate 6O% Paper Products: 55% Current Glass (Aluminum) container recycling
rates: 11 Deposit States rates 64% (76%) Remaining No-Deposit States rates 12% (35%)
Wood Pallets: 800 Million produced each year (300 M from recycled or reclaimed content) 1/3 of US landfills no longer accept these pallets;
others charge for their disposal.
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Primaryproduction
DisposalUse
Supply Loops – Environmental Benefits
1. Diversion of product or process waste from landfill or incineration
by collecting them for economic value recovery via reprocessing.
2. Generation of secondary resources from product or process waste and
displacement of primary resources, i.e. materials, components & products.
When are the environmental benefits from displacement moresignificant than the benefits from avoided landfill / incineration?
2. 1.
Collection &reprocessing
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Material Primary Production (cradle-to-gate in
MJ/kg)
Recycling (scrap-to-gate
MJ/kg)
SavingsFactor
Aluminum 194.7 10.3 19
Copper ~100 20 – 30 5 – 3.3
Steel 21.7 7.1 3
Steel section
33.3 16.0 2.1
PET 82.7 30.2 2.7
Paper 18 12 1.5
Glass 12 8 1.5
Supply Loops – Potential Benefits from Displaced Primary Production
Product Primary Production Reuse Savings Factor
Steel section
33.3 MJ/kg 5.2 MJ/kg 6.4
Cell phone 150-250 MJ/phone 2.5-5 MJ/phone 30-100
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Could we replace all primary steel (BF/BOF) with recycled steel (EAF)?
BF: blast furnaceBOF: basic oxygen furnaceEAF: electric arc furnace
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0
500
1000
1500
2000
2500
100% BOF 100% EAF
GHG emissions from global steel production in 2005 (in MMT CO2 eq)MMT= Million Metric Ton
Factor 5.4
• 1020 MMT finished steel (1142 MMT crude steel)
• Scenario 1: All from basic oxygen furnace (BOF 2.021 kg CO2eq / kg)
• Scenario 2: All from electric arc furnace (EAF 0.3471 kg CO2eq / kg)
MMT CO2eq
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1950 1960 1970 1980 1990 2000
200
400
600
800
1000
1200
Global crude steel production (in MMT)
EAF602
(53%)
BOF540
(47%)
most consumed
640 MMT scrap
generatedin 2005
2005
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0
500
1000
1500
2000
2500
100% BOF 64% BOF,33% EAF
47%BOF, 53%EAF
100% EAF
Factor 1.4 Factor 1.75
GHG emissions from global steel production in 2005 (in MMT CO2 eq)
• 1020 MMT finished steel
• Current: ~ 70% recycling rate (?), 64% BOF, 33% EAF
• Feasible today but steel demand increases: 100% recycling rate, 47% BOF, 53% EAF
MMT CO2eq
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Research by: Roland Geyer, Vered Doctori Blass, University of California, Santa Barbara
Should we reuse or recycle our cell phones?
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Background
Plastics 40-50%
Glass and Ceramics 15-20%
Ferrous metals ~ 3%
Non ferrous metals 22-37%
Other 5-10%
• Estimated amount of cell phone subscriber in 2007: 2.5 billion
• Estimated end-of-life phones in 2005 in the USA: 130 million (~ 0.55 wt% of total e-waste in the US)
• Estimated av. life time 18 months, collection rate < 20%
• More handsets reuse than recycled
Metric tons wt% of USconsumption
Copper 1500 0.06%
Silver 40 0.5%
Gold 4 2.3%
Palladium 2 1.7%
Material compositionRecycling potential in USA in 2005
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in MJ/phone
Best case 250 21.6 1 0.5 1.5 ~ 0
Worst case 150 16.2 5 1 2 ~ 0
reusedisplacedE recycle
displacedE collE reusereproE recycling
reproE dispE
Diversion from
landfill Edisp
Displaced production Edisplaced
Collection Ecoll &
reprocessing Erepro
Material & product markets
Cell phoneuse
Energy required to produce, collected and reprocess cell phones
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Economics of cell phone recycling and reuse
US 2006 (2006 $/phone) UK 2003 (2006 $/phone) Average Cost 7.88 11.36 Average Revenue 0.75 0.90
1
Recycling (including reverse logistics)
US 2006 (2006$/phone) UK 2003 (2006 $/phone) Total Cost 9.8 12.76 Average Revenue 17 23
1
Reuse (including reverse logistics cost)
Not profitable if recyclers have to bear the reverse logistics costs.
Profitable even if refurbishers bear the reverse logistics costs.
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Closer look at cell phone recycling
Mass (in Grams) Metal price in Value of recoverable metals (in cents) High Low 2006 (cents/g) High Low Ag 0.90 0.11 36.01 32.41 4.03 Al 7.20 1.52 0.27 1.94 0.41 Au 0.033 0.026 2151.71 70.15 56.12 Cr 0.72 0.20 0.82 0.59 0.16 Cu 20.68 9.30 0.68 14.09 6.33 Fe 6.62 2.70 0.10 0.66 0.27 Ni 2.74 0.70 2.43 6.64 1.70 Pb 0.80 0.28 0.17 0.14 0.05 Pd 0.09 0.00 1060.97 93.37 0.00 Sn 0.80 0.43 0.92 0.74 0.39 Zn 0.92 0.27 0.35 0.32 0.10 Total 41.57 15.56 221.03 69.56
1
Currently, only copper and the precious metals are being recovered.
However, together they make up 95% of the total material value.
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Conclusions
• More cell phones are currently reused than recycled
• Reuse is profitable even if collection cost is included,
one of the reasons being the short lifetime of cell phones
• Recycling is only profitable without the collection cost
• Recycling currently only recovers copper and precious metals,
i.e. 70-84% of the embodied energy and 95% of the economic value
• The displacement rate of metal recycling is estimated to be high
• The displacement rate of cell phone reuse is estimated to be low
• WHY?
• At current estimated displacement rates cell phone recycling might
generate more environmental benefits than reuse
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Reuse & Remanufactured Products How do you feel about buying these
used or remanufactured products? (rate 1 neutral to 3 very strongly on how
strong you feel) Unattractive/Disgusting Safety and Reliability Issues Purchase is more green
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Technology Product
Unattractive/Disgusting
Safety and Reliability Issues
Purchase is more green
Would buy it if it were X % of new price?
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Household Product
Unattractive/Disgusting
Safety and Reliability Issues
Purchase is more green
Would buy it if it were X % of new price?
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Personal Product
Unattractive/Disgusting
Safety and Reliability Issues
Purchase is more green
Would buy it if it were X % of new price?
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Other examples for reuse:• Beverage containers and other packaging• Printer/copier cartridges• Single use cameras• Electric motors of analog photocopiers• Cell phones• Tire retreading• Automotive spare parts
Fundamental reuse challenges:• Challenge to competitively match supply with demand• Newness seems to have intrinsic value for most consumers• OEMs do not usually support reuse (almost no design for reuse)• Reused products are seldom perfect substitutes• Therefore unclear to what extent reuse displaces new production• Product reuse has conflict potential with product innovation
Reuse
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Question:How can innovation improve the situation? Strategies for
reducing waste are not keeping up.
Market demand for many materials = volatile
As Thomas Edison said about inventing: “You need a good imagination and a pile of junk.”
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Factors influencing 3Rs vs. Reverse Supply Chain (EPR)
Factors affecting RSC implementation
Factors driving 3R Rate
Legislation Country & State Specific Policies: Product Standards & bans, Performance Standards, Charges& Taxes, Emissions trading, Subsidies & Information Disclosure
Customer demand Customer Demand (both consumer & retail customer)
Strategic cost/benefit Strategic cost/benefit
Firm’s environmental concern
Firm’s environmental concern
Volume and quality of returns
Overall Market Demand for materials
Incentives & available resources between partners
Incentives & available resources between partners
Integration & coordination of SC
Integration & coordination of SC
Carter & Ellram (1998), Carter & Carter (1998), Bowen et al (2000), Stevens (2004), Choinard et al (2005), Dahlatshahi (2005), Tan & Kumar (2006), Walker et al (2008), Guide & Van Wassenhove (2009), Rahman & Subramanian (forthcoming IJPE) and others.
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Incremental vs. Radical Innovation (3R Context)
Incremental
Innovation
Product RedesignImprovement to a product within its current typology
Process RedesignImprovement to a process within its current typology
Radical Innovatio
nFunctional
Significant change in the device concept to
provide the same function as the device
it replaces
InstitutionalReplacement of
products with services
SystemSignificant changes in the device concept,
infrastructure and user learning
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Washing Machine System-Radical Innovation
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How can we get more recycling innovation?
System or Supply Chain Significant changes to
device concept, access to & flows of EOL products
Product and Process Design & Technologies for
Re-processing and Disassembly
Concept & Behavior shifts
Market Demand vs. Legislation
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Case analysis findings: Innovation (I vs. R) as a function of key drivers
Key Drivers
Innovation Market Legislative
Product/Process
Low Value: I High Value: I
High Value: I (WEEE & Autos)Low Value: I
System/Supply Chain
Low Value: IHigh Value: I & R (Functional) in shift of durable product to services or “servicizing”
Radical (all types) with Autos and EPR products.
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Approaches & Challenges
Incremental innovation seen with low value Customers demand but may not
participate Packaging innovations (weight,
unessential packaging, use of concentrates, refills, different materials)
Incremental innovations face diminishing margins of return
Radical innovation with high value Hard to create system shifts without
high value Serviciszing & sharing products
(company maintains ownership and others lease as needed)
US demand fluctuates for material causing uncertainty & risk avoidance >fragile
China demand for materials is high so radical process innovation happens there
Incremental innovation more likely with standards, emissions trading, required information disclosure and voluntary recycling. (Cander, 2004)
Radical innovation shown with product bans, charges & taxes, subsidies and EPR (EU autos) Shift customer habits in major ways Product Innovations
Design for Dismantling & Recycling (DFD/DFR)
EEE producers Technology & supply chain
innovations Networks of dismantlers/shredders
Market Demand-based Approach
Legislative Policy-based Approach
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Example Market Driven: Chinese Recycling Xmas Lights , Minter (2011)
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Servicizing or Shared resources B2B
Copiers Equipment Others?
B2C Cars Clothes Wineries
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Pros & Cons of Servicizing & Sharing
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Questions & Thoughts