Innovations in Waste Processing Bioplastics and Anaerobic Digestion - - PowerPoint PPT Presentation

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Sep 13, 2023 110 likes •243 views

NNFCC Innovations in Waste Processing Bioplastics and Anaerobic Digestion Dr Jeremy Tomkinson NNFCC building sustainable supply chains NNFCC Average weekly Shop Filmic Materials 10s of KTs Paper and board 100s of KTs

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building sustainable supply chains

NNFCC

Innovations in Waste Processing Bioplastics and Anaerobic Digestion

Dr Jeremy Tomkinson NNFCC

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NNFCC

building sustainable supply chains

Average weekly Shop

Filmic Materials 10’s of

KT’s

Paper and board 100’s of

KT’s

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NNFCC

building sustainable supply chains

Packaging

Images courtesy MaterBi

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NNFCC

building sustainable supply chains

Packaging

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NNFCC

building sustainable supply chains

Packaging

More complicated lightweight packaging entering UK market, e.g.

microwavable soup sachets
coffee sachets
Twinings tea
All are v difficult to recycle or

reuse as multi laminates of different materials

if biodegradable then no need

to depackage and recover as packaging and food could go to AD plant for energy recovery

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building sustainable supply chains

Bioplastics – C/N ratio

Bioplastics contain renewable resources, they produce biogas during

biodegradation and the residual matter and biomass produced remain in the digestate / compost

Biowastes esp kitchen waste can have high protein levels
low C/N ratio (<20)
can lead to high ammonia levels
reduced digestion rates
Bioplastics are virtually all carbohydrates with little or no nitrogen
high C/N Ratio
low ammonia levels
maximised CH4 / energetic output

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building sustainable supply chains

Bio-based degradable plastics

Evolution of biogas from cellulose (red) compared to a selection of Bio- based packaging films through high-rate dry anaerobic fermentation

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building sustainable supply chains

Biomethane potential of UK food waste and primary food packaging

tpa volatile solids biomethane Gas energy content As proportion

f 49 TWh

RES heat target As proportion

f 117 TWh

RES electricity target % VS m3 TWh % % Food 7,000,000 23.3 768,201,000 8.05 16.4 1.2 Packaging 240,000 95 89,148,000 0.93 1.9 0.1

Anaerobic Treatment of Packaging Waste 09-011 NNFCC Report - Southampton University

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building sustainable supply chains

Bio-based degradable plastics

Films, trays and bags are the most common forms of

food packaging materials with the bio based offering valuable and in some cases unique physical properties

If we could digest all the filmic packaging materials used

in foods we could generate in excess of 270 million cubic metres of biogas - PCI report 2007

Taking a more realistic scenario of only 10% EU market

penetration this is enough to generate 54 GWh of power per annum

EU Renewable energy generation would increase at a

rate of ca 5 GWh for every 1% of petrochemical derived plastic film converted to biodegradable plastic film.

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Website: www.nnfcc.co.uk Email: I.1234567891@nnfcc.co.uk

NNFCC

www.nnfcc.co.uk

building sustainable supply chains

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building sustainable supply chains

UK ON-Pack Labelling

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building sustainable supply chains

Home Composting

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NNFCC

building sustainable supply chains