circular economy potential on scottish islandscircular economy potential on scottish islands roland...
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![Page 1: Circular Economy Potential on Scottish IslandsCircular Economy Potential on Scottish Islands Roland Arnison, Shearwater Consulting . ... Animal feed, fish feed Livestock and food products](https://reader033.vdocument.in/reader033/viewer/2022041910/5e67001f6f9fbf44281aff9b/html5/thumbnails/1.jpg)
Shearwater Consulting
Circular Economy Potential on Scottish
Islands
Roland Arnison, Shearwater Consulting
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Shearwater Consulting
Circular Economy Potential on Scottish Islands
• What is the circular economy?
• Why Scottish Islands?
• What are the opportunities?
• What next?
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Shearwater Consulting
Roland Arnison - independent consultant
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Some recent work -
• Beer-Whisky-Fish circular economy study for Scottish Government
• Case studies and development support for Scottish bio-economy innovators
• Circular economy potential studies for Small Isles and for Orkney: HIE and ZWS
Previous work on renewable energy, composting, anaerobic digestion, waste options… and closed loop shrimp cultivation
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Circular economy in a nutshell
“The circular economy is an alternative model to our ‘make, use, dispose’ culture which means re-using products and materials continually”
“Developing a circular economy in Scotland will help to protect our economy against exposure to resource supply risks and volatile commodity prices”
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Why Scottish islands?
• Most circular economy development so far is in centralised /urban supply chains. Insight needed into dispersed /rural opportunities.
• Higher supply costs for imported resources - oil, animal feeds, fertilisers, etc
• Surplus renewable electricity
• Natural resources / wastes available
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Objectives
• Grow and protect island economies
• Future proof against rising costs of key imports
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How?
New bio-production based on island resources
Uses for waste heat and surplus electricity
Waste from one business = feedstock for another
Small scale local solutions
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Scottish islands key resources
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Wood
Animal feed, fish feed
Livestock and food products
Household / business waste
Fossil fuels
Sewage
Food
Products, packaging
Fertilisers
Fish, shellfish
Waste water, dairy effluent, pot ale
Manures, fish excreta
Renewable power
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Shearwater Consulting
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Renewable heating fuel
Brackettes: biomass briquettes made from bracken
Brackenburn manufacture briquettes from bracken, as a fuel for domestic fires and log burners. These Brackettes are claimed to burn hotter than oak due to higher calorific value and lower moisture content.
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Electric vehicles
Solution for renewable electricity generation storage?
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On-island recycling of waste plastics
ECOCYCLE Cube: 3d printing with recycled plastics
“Exclusively printing in post-consumer waste, the EKOCYCLE Cube 3D printer recycles what you use, so you can remake into new, meaningful, beautiful and better things”
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Nutrient recovery from sewage
Microbial Fuel Cells
Small scale heat and power from sewage
Nutrient separation
Small scale low energy separation into nutrient liquor and clean water
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Anaerobic Digestion
DIGESTATE
Plant nutrients as solid or liquid
Food wastes Manures
Distillery, dairy, brewery effluents Seaweed
Renewable power
Biogas
Biogas
Renewable heat
Agriculture, biomass growing
High
productivity
protected food
growing ?
CO2
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Shearwater Consulting
Seaweed
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Marine Biopolymers, Argyll
Seaweed processing facility that will produce alginates at a commercial scale, along with
cellulose-rich residue, using renewable heat and power.
Uist Asco
Harvests and dries seaweed using renewable heat to sell as animal feed and for agricultural use
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Shearwater Consulting
Pot ale
Algae production
ALGAE PRODUCTS
Animal feed Aquaculture feed Biogas feedstock Biofuels Food supplements Pharmaceuticals Proteins Omega 3 oils Commodity chemicals Bioplastics
Clean water
CO2
Distillery
Local renewable
power
Biogas
Microalgae
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Animal and fish feeds
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Commercial scale technology to produce pig, poultry and fish feed ingredients from Black Soldier Fly larvae grown on various
low grade organic wastes.
High value protein extracted from food industry effluents.
Designed to work at small scale.
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Shearwater Consulting
Over to you: What next?
• Grow and protect island economies
• Future proof against rising costs of key imports
• Make use of local renewable resources
Wide range of opportunities – How to develop them?
Eg A practical circular economy development programme with trials of most promising technologies – Scottish islands as test beds and pioneers
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Key people
Island Community Trusts
Development agencies
Technology providers /innovators
Entrepreneurs
Investors
Researchers
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Shearwater Consulting
Contact
Roland Arnison, Shearwater Consulting
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