1. Cradle to Cradle
Are we starting from right place? We need to stop wasting food in first place In reality ‘unavoidable’ food waste is about 1.5Kg per household per week That’s around 2 million tonnes per annum

2. Climate Chaos Climate Emergency
Food Waste, major contributor to emissions WRAP working across supply chain to reduce waste

3. Target
Set a food waste reduction target for your own UK operations … relative to production
Measure
Measure in a consistent way, and share what you’ve learnt
Act
Take action to reduce your own food waste, work in partnership with suppliers and help consumers reduce their food waste

4. Basic Principles Convert organic wastes into quality organic matter
No Plastic
Reduce food waste miles
Capture gas if possible
WRAP estimate household food waste at 7million tonnes
Reality is some 3 million and should go down to 2 million
Household green waste around 6 million tonnes

5. Treating Organic Wastes
No one solution. But C to C principles key
Wet AD is great for pure food wastes
But 6 month closed season for digestate
Dry AD manages both green and food
Potentially gasification/pyrolysis
Key is to quality organics back to land as well as gas generation
Need to get energy balance right, hence cradle to cradle

6. Why use plastic to wrap organic waste
Crap in is crap out!
No point in AD or composting if we don’t get inputs right
Use certified compostable liners or preferably go naked!
Quality outputs are essential

7. What is biodegradable packaging?
It is important to note that only compostable packaging materials adhering to the EN13432 standard can be considered ”biodegradable” as biodegradable in the context of the Waste Framework Directive 2008/92, the Packaging and Packaging Waste Directive 96/82 and the Essential Requirements and additionally the Directive on Single Use Plastics (article 3, 16). Packaging materials adhering to the EN13432 standard demonstrate conformity with the Essential Requirements and end of waste criteria when organically recovered through composting and Anaerobic Digestion into compost or digestate produced to the national standards recognised within the Fertiliser Regulation and where relevant the Quality Protocols are respected. Organic recovery is, according to the cited Regulations, recycling.

8. Quality Compost

9. Quality Digestate

10. Digestate Spreading

11. How do we collect organic waste
We need to be smarter at collecting in energy terms
Diesel is typically 35MJ/L 0.32L/Km 11MJ/Km
In Energy terms food only waste collections at 2 tonne payloads so 5.5MJ/t/km
Comingled green & food collections 12 tonne payloads 0.92MJ/t/km

12. Capturing household organic waste
Make it easy, provide free liners Bin space, weekly or fortnightly Education
Key is getting kitchen waste to right bin with no contamination
Gardens versus flats

13. Commercial Food Wastes
How best to collect?
No plastic
Packaged Food maybe?
Combining high density housing collections?
Frequent collections

14. Hospitality and foodservice waste
Increasingly containing compostable products
Increased feedstock for processors
Needs better management to optimise potential

15. What if we managed commercial waste like power?
Businesses buy services from any provider
One provider is responsible for all collections
Carbon efficient routes
Less congestion

16. Rethinking commercial collections
Current situation
Businesses can choose any collector
Multiple trucks collecting per street
Carbon efficient?

17. Summary Get plastic out of domestic organic waste stream
Commercial packaged food, prove all plastic is removed
Improve energy efficiency of collections
Especially commercial collections
Compost to land builds carbon
Liquid fertiliser reduces chemical fertiliser

18. Charlie Trousdell Associates charlie@ctrousdell.co.uk 07768 647110
Thank You
Charlie Trousdell Associates