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Waste & Recycling January 02, 2024 12:20:52 PM

Future-Proof MRF Design

Waste Advantage
ScrapMonster Author
However, they all have one thing in common: their MRF does not perform the same way it used to because it was not designed to handle the changing material stream.
Future-Proof MRF Design

SEATTLE (Waste Advantage): When designing a new MRF or retrofit, you will want to strongly consider where the material stream is going in the next 10 years. Single-stream collection is here to stay. However, the composition keeps changing on us due to social factors. COVID has accelerated the “Amazon effect.” OCC (old corrugated containers), especially small OCC, has been on a steep rise and seems to continue to climb. Flexible packaging (including plastic film, although often not in the collection program) is also on the rise. As a result, the density of the input material is dropping, and it makes it harder to run at higher capacities. For many of our customers, this is already a reality today. Some see certain loads from certain areas coming in that way. However, they all have one thing in common: their MRF does not perform the same way it used to because it was not designed to handle the changing material stream.

Packaging Trends
Many of our customers are already seeing ONP (old newspaper) grade declining rapidly. Operators are struggling to make an ONP grade and often must sell it as mixed paper. It will become harder and harder to make an ONP grade even for the most modern MRF. Blending ONP into mixed paper will become a reality for many—if not already.

In many areas, flexible packaging will become a commodity—especially PE plastic film. Plastic recyclers for LDPE and LLDPE plastic film are expanding their capacity rapidly and continue to grow (EPR being one of the drivers for this). The good news for MRF operators is that they can turn plastic film, which is still considered residue, into a sellable commodity soon. Plastic film is disliked by many operators since it wraps around the shafts of their old paper screens (thus it is not currently a part of many recycling programs). This is going to change over the next 10 years as the new AI-powered MRF infrastructure evolves. We will see flexible packaging added to many recycling programs.

Preparing for Changes
The question arises: How do I prepare my new MRF operations for these changes? With long leadtimes, increased automation, and the complexity of today’s systems, it can easily take two years until a new MRF becomes operational. If you have not considered the material changes during the design phase two years ago, then you will find yourself needing to plan a costly retrofit for your new MRF on day one of startup. Predicting future material changes and upcoming commodities and integrating them into the MRF design will prevent premature investments in newly operational equipment. We should not be designing for the material streams today. We should design for the material streams of the future using the latest technologies, including AI.

Existing MRF infrastructure can be adapted to handle these evolutions as well. Improvements can be done via retrofits to almost any MRF, but we need to stay realistic. Nobody will convert a 25-year-old MRF into a high capacity, highly automated, AI powered MRF without huge investments and excessive downtime. But there are a lot of shades of gray in between, and with some expert advice, a design can be created that fits the budget and can improve your MRF in all possible aspects: throughput, recovery, quality, and head count. 

Courtesy: www.wasteadvantage.com

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