Circular economy 22 and 23 Flashcards
lecture overview (11)
History Types waste hierarchy industrial symbiosis sustainable materials cradle to cradle blue economy product-life cycle systems material efficiency performance economy circular economy
lecture overview economy examples (9)
When I sing carefully blonde people make pineapple cake
waste hierarchy industrial symbiosis sustainable materials cradle to cradle blue economy product-life cycle systems material efficiency performance economy circular economy
History 1 pre 1960s (3) example
pre 1960s
-industrial revolution - profit driven and production
-by product may help make more profit
-industrial symbiosis
1 factory use output of other - bread-batter - beer – breed fish
History 60s and 70s (3) example
60s and 70s product end of life focus wellbeing of humans focus as well impact of actions -waste management- composting,recycling,toxicity
90s (4)
thematisation- life cycle of products and wellbeing of humans
enviro + economics
whole product life time and disribution
circular economy etc - win/win situ
operations based (4) and examples of economy (2)
waste quantity issue reduce waste flows reduce waste by recycling loop is closed when next use found 1) waste hierachy 2)industrial symbiosis
metabolism approach (3) examples (3)
materials DESIGNED in parallel to recycling
purity focus
ease of disassembly key therefore reduce products like glue
sustainable materials economy
cradle to cradle
blue economy
life cycle approach (3) example (4)
- loops closed if all different phases are completed
- focus on best product at each stage
- info about state of product and location at each point known through lifetime
product life cycle systems
material efficiency
performance economy
circular economy
3 approaches
operations based
metabolism
life cycle
waste heirachy + examples
Rs reduce,reuse,recycle reuse=longevity response manage wast-pyramid extract as much amount of benefit and minimise waste ie coffee stainless steel,enamel mug sugru=add handle on
industrial symbiosis 2 (4 examples)
resources productive in industry fr longer
baker example
business opportunity and reduces demand
caustic soda products can have chlorine and hydrogen
obtain calcium from slurry and also ethylene
ethylene can then be used to form PVC compounds
sustainable materials economy author and example
John E. Young and Aaron Sachs
The World Bank is now supporting Lanais Ganda–“Clean and Beautiful”–a Manila-based network of scavengers who comb the city’s trash for reusable items. Thanks to the program, hundreds of people have been able to establish small businesses.
cradle to cradle 3 main points (4 examples 2 gd 2 okay)
2 material groups - biodegradable and technological
product design essential - use easily separated materials and minimize
theoretically would lead to NO waste
would emphasize choosing expensive and high energy to produce biodegradable over cheap non biodegradable
examples:
aluminum cup can be fully returned to cup - certified
seed cup - (regrow tree but not effective)
puma shoes (bacteria biodegrade)
nylon can be respun (but not biodegradable)
blue economy (3) and author
-connect and combine enviro problems with science solutions based on PHYSICAL PROCESSES in natural world to create enviro benefit and socia lbenefit
focus on value
- GUNTER PAULI
- aim to shift high enrger cost resouces to simpler cleaner and inspire entrepeneurs
blue economy author
Gunter Pauli
product life cycle
integrate 5 things ?
5 main areas
manage entire life cycle from inception
engineering design,architecture
TO SERVICE AND DISPOSAL of manufactured items
integrate - consumer/business systems/data/ processes / product info
1) systems engineering
2) info and portfolio
3) design
4) manufacturing processes
5) Data management
materials efficiency
a description or metric which expresses the degree in which raw materials are consumed, incorporated, or wasted, as compared to previous measures.
in construction or physical processes
performance economy briudges gap between what
bridges gap between 2010 lisbo objective of EU
- higher growth,more jobs, more sustainability
- objective- greatly reduce resource consumption
performance economy book
book “more from less” - how companies can benefit from techno progress and simuktaneously contribute to sustainable development
decoupling metrics to measure the relation between value/job/resource consumption
who developed performance economy concept
Walkter stahl
Performance economy idea and examples
7
“rent a molecule”
space station example - products maintained and upgraded but people who manufacture would own
-have all info required
-have technology and can repair/treat
rent a molecule space station boris bikes senseo coffe edibe mushrooms biobean
if cannot return to service owner what would happen in circular econ:?
what does this require
have product specific route and product is revised by 2nd owner but INFO is losr and 2nd owner not aware of previous trearment - movement from loop to lake(this requires transitions cost)
boris bike pro and con
service without own bike good
difficult to ensure good condition and some people dont like riding 2nd hand bike
renault example-
the yfixed engines at lower cost and knew how
senseo coffee
completely biodegradable coffe pads
mushrooms
can be grown of coffe granules for food
biobean
ground coffe that can be used as biofuel
how do the main 3 approaches
operations,metabolism,life cycle VARY?
1)purpose and benefits cradle to cradele - material composition and recycling performance economy (employ,ment)
2) delivery (prevents - excess use or keeping product going and what happens to loop
closing,slowing,intensifying
what happens to loops 3
closing - keeping products in productive cycle
slowing- reducing pace materials flow
intensifying- tapping into underused/unused capacity
current world problem
very little of the worlds waste is recycled and only small percentage of economy circular
this MUSTchange
dematerialising problem
can compromise srength of material - trade off
ie beer bottles lighter and purer last less long - need to balance this
extra examples fo circular econmy) (2)
rent a glass (events)
B and q toolbox - watch vid and get to use expert tools
Circular economy definition (wider)
generic term for an industrial economy producing no waste and pollution by design and in which materials flow in 2 types - biological nutrients (can entre biosphere safely) and technical types (should circulate in production ysstem without enter biosphere and are of high quality)
