Business case

Minimise waste through diversion: Instead of sending waste to landfill, it is redirected into other industrial processes for handling, treatment, recycling, recovery, or reuse in various forms. 

Minimise waste through design: At the outset of a process of project, plan and design such that there is zero waste or minimal waste during production, use, and at end of life. 

Minimise Waste (SDG12)

Reduced use and withdrawal of water and rate of recycling and reuse of water

Save Water (SDG6)

Reduced use of fossil fuel energy sources and/or increased use of renewable energy

Reduce Energy Consumption

Producing building materials and providing services to create residential and non-residential infrastructure and real estate


Construction and Infrastructure

Using bio-based materials such as bioplastics, mushroom-based materials, etc.

Alternative bio-based materials and inputs

Using materials that can be easily reused or recycled after use

Reusable, recyclable materials and inputs

Designing products so they use as little materials, water, energy, etc. as possible during use

Design for resource efficiency

Rescue or mine materials or components from buildings for use in new buildings or for processing to be used in other industrial processes.

Salvage components

Make collected and sorted recyclables available for use by citizens, small businesses up to large scale industrial processes. 

Use recyclables

Efficiency and effectiveness of water supply services must be secured by minimising the leaks, through a combination of leak detection techniques, pipes maintenance and reparation and water audits. Leak minimisation can be enhanced through the use of sensor technologies.

Minimise leaks

Locally produced food has to travel shorter, which means less fuel is consumed and less greenhouse gases are generated. Moreover, buying locally produced food helps local farmers and markets and creates more jobs in the local businesses. 


Produce locally

In the context of cities, regenerating ecosystems refers to the active protection of native habitats or the conservation and restoration of natural habitat analogues. Examples: reforestation and afforestation in urban contexts, protection of birds and local wildlife, management of green spaces, and removal of waste and plastic (or other anti pollution measures).

Regenerate ecosystems

Other

Impacts

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Industries

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The principles of a circular economy concern designing out waste, regenerating ecosystems and keeping items in use. Decoupling the economy from material flows—improving the rate of resource productivity faster than the economic growth rate—is also a consistent guide. By evolving with the growing number of applications of circular economy principles, and consolidating these strategies across thematic areas, Circle Economy’s Key Elements Framework (KE) renders the elements of the circular economy salient and serves as a basis to derive contextual strategies and interventions. 


The Framework consists of:
- Core Elements: Activities directly handling product or material flows; and uniquely,
- Enabling Elements: those that remove obstacles for core actors.


Key elements of the circular economy

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Circle Economy's framework of strategies and activities that define the circular economy

Urban Opportunities

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Based on the work of [Bocken et al. (2016)](https://www.researchgate.net/publication/309699661_Product_design_and_business_model_strategies_for_a_circular_economy), the Four Flows Framework serves as a simple framework for managing resource flows in a circular economy by using less (Narrow), using for longer (Slow), using again (Cycle), and using clean, regenerative materials and energy (Regenerate).

These different principles of circular economy can be applied to our socioeconomic metabolism: we can design stocks like buildings, infrastructure, machinery, and vehicles to be rich resource mines for the future, and design manufactured goods and consumables to be cycled and made regenerative. Furthermore, the focus must also centre on getting more value out of fewer materials. Achieving the aims of a circular economy—minimising material use, regenerating the Earth, and preventing material losses—can be done through these four key strategies mentioned above.

Source: Circle Economy. (2023). *[The circularity gap report 2023](https://www.circularity-gap.world/2023)* (p.22). Amsterdam: Circle Economy. 

Four Flows Framework

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Municipality of Alphen aan den Rijn

<p>Ecolonia is a town expansion near Alphen aan de Rijn built in 1994 as a sustainable neighbourhood. It widely uses biological materials with a focus on the ease of recycling, and avoiding concrete wherever possible. Where concrete was used, it was made with recycled materials such as rubble. This approach makes it easier to replace and dispose of parts in the Ecolonia buildings. The complex also used further techniques to make the area more regenerative, such as nature-based water management systems and a focus on isolation and energy efficiency.</p>