Page 157 - Towards A Sustainable Future , Phase 3 2025, E-Book_Neat

Fried silverfish: No specific data available, negligible due to Potential carbon and cost savings for Singapore
insignificant emission This innovative project demonstrates the powerful potential
of repurposing waste materials into valuable products,
Fried garlic 1.3 kg CO2e/kg significantly contributing to sustainability across multiple
fried onion: 1.3 kg CO2e/kg industries.
Ginger powder: 1.9 kg CO2e/kg Sustainable Clay Development. The creation of a
Other ingredients: negligible due to insignificant emission sustainable clay recipe incorporating seafood shell powder
and eco-friendly binders showcases the transformation of
The total weight of prawn shell seasoning is 36.35g. waste into durable, functional materials. By adjusting liquid
ratios and incorporating fillers like white cement, the project
Using the highest emission factor from the available data (1.9 addresses challenges such as cracking and rough textures,
kg CO2e/kg for ginger), highlighting the versatility of upcycled waste materials.
Cement Replacement. The initiative to replace 20%
The estimated maximum CO2 emission of 36.35g of seasoning of cement in concrete production with shell powder offers
powder is 0.03635 kg x 1.9 kg CO2e/kg = 0.069 kg CO2e a compelling solution to high CO₂ emissions from cement
manufacturing. This process reduces carbon emissions by
Total CO2 emission reduction = Avoided Emission – Process approximately 0.6642 billion tonnes, with a net CO₂ reduction
Emission – Ingredient Emission = 0.0112 kg CO2e - 0.0030 kg of 85,784 kg CO₂e based on ParkRoyal's annual shell waste
CO2e - 0.069 kg CO2e generation of 60,840 kg. This underscores the potential for
sustainable practices within the construction industry.
= 0.04 kg CO2e per 0.0118kg prawn shell powder
= 3.39 kg CO2e per kg prawn shell powder Eco-Friendly Consumer Products. The creation of an
eco-friendly abrasive detergent utilising shellfish powder
exemplifies the integration of waste materials into everyday
products. This initiative reduces CO₂ emissions by 0.727 kg
per kg of detergent produced compared to traditional raw
material production, showcasing how sustainability can be
incorporated into cleaning products.

Food Industry Innovation. Repurposing prawn shells into
food seasoning powder effectively reduces methane release
from landfills, preventing 0.0112 kg CO₂e of emissions per
Table 6: Overall projected amount and savings of the Eco-solution batch. This initiative promotes waste reduction and provides
annual before/after implementation for food seasoning powder an innovative solution to food waste within the hospitality
sector.
Repurposing raw prawn shells into food seasoning powder has Conclusion
significantly cut carbon emissions, avoiding 0.0112 kg CO₂e This project exemplifies the transformative power of creativity
per batch by reducing methane from landfill waste. Despite and sustainability, demonstrating how industries can reduce
minimal emissions from processing, the seasoning's carbon carbon emissions, repurpose waste, and adopt circular
footprint is much lower than landfill disposal. This initiative economy practices. By leveraging these solutions, we can
has reduced annual carbon emissions by 50%, showcasing the pave the way for a more resource-efficient future and inspire
environmental benefits of circular economy practices in the widespread adoption of sustainable practices across various
food industry. sectors.

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