For decades, landfills have carried the blame for the failures of waste management systems; odour, pollution, groundwater risks, methane emissions, and the visible reminder of “wastefulness.”

But landfills do not create waste; they merely receive the consequences of upstream design, production, consumption, and policy decisions. Further to this, landfills are often misidentified as “dumps.” Dumpsites are uncontrolled, unlined, and unmanaged sites and are responsible for the negative impacts commonly attributed to “landfills.” An engineered landfill, by contrast, is a regulated environmental containment system. The real problem is upstream.

As the UNEP Global Waste Outlook states, “Waste is a product of design, not disposal.” The landfill is not the villain; it is the scoreboard of how effectively (or poorly) material value is managed across society.

We built disposal systems before we built circular systems. For most of the 20th century, waste systems operated as linear supply chains:

Produce → Consume → Discard

Recycling markets were underdeveloped, source separation was limited, and packaging innovation prioritised convenience and cost over reusability and recovery. In many developing countries, recovery was not municipal; it was performed by the informal sector.

For example:

• In South Africa, up to 80% of post-consumer packaging recovery is driven by informal reclaimers.
• In India, segregation programmes in Bangalore and Pune have struggled with inconsistent public compliance and infrastructure support.
• Dandora (Nairobi) and Kpone (Accra) continue to receive large volumes of recoverable material due to weak upstream sorting and market pull-through.

Municipalities were structured to remove waste from sight, not to manage it as a resource. As a result, landfills became the default system, not the fallback.

Not All Landfills Are Equal

There is a critical distinction between engineered landfills and uncontrolled dumpsites. As the composition of waste has become more complex, composite packaging, textile blends, electronics, multi-layer plastics, and engineered landfills are now expected to do more than contain waste.

Landfills as a recovery node

The waste arriving at engineered landfills today is no longer simple or uniform. Instead, landfill operators are increasingly required to:

• Extract recoverable materials
• Convert suitable streams into RDF / SRF fuel
• Recover metals and WEEE components
• Manage bio-stabilisation and gas-to-energy.

Decide what is truly residual and requires containment

In other words:

• The landfill has become the last opportunity to rescue value that upstream systems failed to preserve.
• This directly reinforces why the goal is not to eliminate landfills, but to dramatically reduce what must reach them.

Comparison of an engineered sanitary landfill (regulated containment system) and an uncontrolled dumpsite (environmental hazard)

Sector-Specific Frameworks Are Emerging

Industries are now beginning to intervene earlier in the material life cycle, especially in:

• Plastics: Global treaty negotiations, EPR, advanced recycling.
• E-waste: Recovery of critical minerals (copper, cobalt, rare earths), design-for-disassembly.
• Chemical waste: Closed-loop solvent systems and industrial symbiosis networks.

These streams are not simply “waste” – they are material systems with economic, environmental, and geopolitical implications.

The circular economy does not begin at the landfill or the recycling plant. It begins at the:

• Design lab (design engineer)
• Polymer reactor (scientist)
• Circuit board assembly line (electronic design engineer)
• Chemical formulation bench (chemical solutions engineer).

Conclusion

Landfills are not the enemy. While the role of landfill operators is shifting toward last-stage value recovery, many industries are now shifting their efforts into some waste streams requiring dedicated frameworks long before they appear in municipal systems. Companies are changing their focus to intervene early in the product life cycle so that they can be looped back into the value chain rather than being disposed off at the landfill. This means focus on innovation, research and development, re-use capabilities, design approach, market uptake and linking up with the global system.

They are the mirror reflecting:

• Our product design choices,
• Our consumption habits,
• Our policy priorities, and
• Our investment decisions.

As per the World Bank (2018), global material consumption is expected to double in the next 40 years, driven by population growth, urbanisation, and rising living standards. At the same time, global waste generation is projected to increase by more than 70% by 2050. Collectively, we have to address the direction in which these trajectories are going and we have to look at redesigning systems to start going in the right direction.

As much as we make advancements in building the circular economy future, there is still going to be a need for containment facilities for:

• High-hazard waste,
• Stabilising some waste
• Residual deposition.

We cannot continue to think that there will be zero waste to landfills, especially with the trajectories we see currently. What we need to do is stop wasteful landfilling. Landfills should only be taking in waste that has no path back to value creation!

The challenge is not to eliminate landfills, but to reduce what needs to go into them, and to ensure that what does requires safe, engineered containment. Landfills should be residual nodes, not endpoints for wasted value.

Expert insight by Nick Mannie, waste and circular economy executive