The City’s Fifty/50 Wheelie Bin Initiative, led by the Solid Waste Management Department, is using material from broken, past-their-lifespan wheelie bins to produce new ones. This has resulted in more than R18 million cost-savings and freeing up space at landfills, while contributing to the circular economy. Mayoral Committee Member for Water and Waste Alderman Xanthea Limberg visited the factory where the condemned bins are taken to be recycled as part of this intervention.

Over the past six years, the Fifty/50 Wheelie Bin Initiative has diverted more than 1,2 million kgs of condemned bins from landfill and recycled these to create new bins, resulting in an overall cost saving of more than R18 million.

 

These bins are identifiable by their grey, and more recently green, lids.

 

Inspiration for the initiative

 

The 240 litre wheelie-bin was introduced to South Africa during the early 1990s. Up until 2014 the City procured bins manufactured from 100% virgin high density polyethylene (HDPE) plastic. This material is hardy and durable, which makes it a good choice for hard-wearing items that are exposed to a harsh operating environment, but it is not biodegradable and, when it reaches the end of its usability, takes up a substantial amount of limited landfill airspace if not recycled.

 

The impact on the environment of using virgin material triggered an investigation by the Solid Waste Management Department into how the process could become more sustainable. Following this, the City produced a new, more environmentally-friendly tender specification for procurement, in which bins are manufactured from 50% recycled HDPE, known as Fifty/50 wheelie bins.

 

The new specifications required that the producer include HDPE material salvaged from condemned/past-lifespan City wheelie bins to manufacture new ones, thereby ‘closing the loop’ on a public procurement process, which has a substantial positive impact.

 

Outcomes

 

The department currently has more than 850 000 bins ‘in the field’, and eventually all City-issued wheelie bins will be replaced with the Fifty/50 version.

 

Over the past six years:

 

  • 18 865 ‘free’ bins have been provided, saving the City approximately R7,4 million at current tender prices. This is because the tender requires that in exchange for every 65kg of broken/condemned bin material provided as recycling ‘feedstock’ to the contractor, one free 240 litre wheelie bin is provided to the City.

 

  • 378 328 Fifty/50 wheelie-bins have been procured and are already in use, providing a refuse collection service to the public, which translates to an additional R10,4 million in savings as these bins are about R28 cheaper each.

 

  • Lastly, the City has saved about R600 000 in landfill gate fees.

 

‘The Fifty/50 Wheelie Bin Initiative has seen more than a million kgs of HDPE diverted from landfill and incorporated into a circular economy – saving costs and landfill airspace, while cutting carbon emissions associated with the production of virgin materials,’ said Mayoral Committee Member for Water and Waste Alderman Xanthea Limberg.

Lifting the lid on how the City's award-winning bins are closing the loop

GreenCape study

 

The initiative was the focus of a recent case study conducted by GreenCape, a non-profit organisation specialising in the green economy. The case study focuses on building a resilient city through circular public procurement.

 

In the case study, GreenCape noted that one of the many levers a city can implement to drive circularity at scale, is through implementing circular procurement.

 

‘In essence, a circular economy is to preserve natural resources by retaining the quality and value of products, their parts and the materials used to make them. A circular economy also separates the value chains of renewable resources and non-renewable resources as they require different technologies and methods.

 

‘Nowhere is this more evident than through the City’s Fifty/50 refuse bin procurement programme, which has leveraged its procurement policy to tangibly facilitate circularity at scale.

 

‘More specifically, the City has used circular procurement to not only meet its constitutional mandate to ensure its citizens have access to waste services, but has diverted waste from its own landfills, secured end-markets for plastic recyclers, secured offtakes to their own bin waste, created circular jobs and more importantly, secured businesses and the associated jobs offered, during a global crisis. All this without compromising price, quality, functionality, and longevity of the bins. All bins are also tested to ensure they comply with relevant standards,’ said Alderman Limberg.

 

The GreenCape case study is available here: https://www.greencape.co.za/content/case-study-wheelie-bin/

 

Celebrating achievements

 

  • This initiative was one of the waste minimisation interventions that earned the City joint first place in the Local Authority Recycling Innovation category in the Petco awards in March.

 

  • The Fifty/50 bins were named 2015’s “Best Recycled Product of the Year” by the South African Plastics Recycling Organisation, which was the first ever government entry into this competition, beating more than 30 other product finalists in four different categories.

 

‘The Solid Waste Department has demonstrated that beyond commitment to meeting basic service delivery requirements, there is a bigger-picture vision that drives innovation. I applaud our forward-thinking team who worked to make the Fifty/50 ambition a reality, and identifying that the solution was contained in the challenge,’ said Alderman Limberg.

 

More information about the City’s other waste minimisation programmes recognised at the PETCO awards is available here: https://bit.ly/32H2Q3H

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