Time spent on lab waste is time never wasted

Unlike many workplaces, laboratories also have to balance waste reduction against safety, operational requirements and strict handling procedures. This means the answer is not simply to produce less waste, but to make sure each waste stream is being managed in the most appropriate way.

Here are some practical ways in which laboratories can improve segregation, reduce unnecessary disposal costs and build a more efficient approach to waste management.

Segregate at the point waste is produced

Waste segregation is the starting point for any laboratory looking to improve its waste management. A common issue is that items end up in higher-cost waste streams simply because that is the nearest or most convenient container.

In a laboratory, waste decisions are being made at benches, preparation areas and testing stations throughout the day. Containers therefore need to be positioned around the way people actually work, with clear labelling that makes the correct route obvious. If staff have to walk across the laboratory or stop to work out where something belongs, mistakes become much more likely.

Getting segregation right can reduce disposal costs, but it also prevents recyclable or lower-risk material from being unnecessarily treated through more intensive waste routes.

Don’t classify everything as hazardous

Laboratories naturally produce waste that requires specialist handling, but that does not mean everything generated within a lab should follow the same route.

The strongest waste systems are the ones designed around the laboratory itself

Overclassification is an expensive mistake. Packaging, uncontaminated materials and other non-hazardous waste can sometimes be disposed of through completely different streams from chemically contaminated, infectious or otherwise hazardous materials.

The key is to understand what is actually being discarded rather than making decisions based purely on where it was generated. Correct classification protects compliance while ensuring organisations are not paying specialist disposal rates where they are not necessary.

Look upstream at purchasing and stock control

One of the most effective ways to reduce laboratory waste is to prevent it from being created in the first place. Procurement and waste management are often treated as separate functions, when in practice the two are closely connected.

Expired products, unused reagents and surplus consumables all become waste that then has to be managed. Better visibility of stock levels, expiry dates and ordering patterns can help laboratories avoid buying material that will never be used.

There are also opportunities to speak to suppliers about unnecessary packaging or to consolidate orders where practical. These changes may seem small individually, but across a busy laboratory they can reduce both the volume of waste produced and the cost of managing it.

Review container sizes and collection schedules

Another area laboratories should examine is whether their collection arrangements still reflect the waste they actually produce. Waste contracts are often established and then left unchanged for years, even when laboratory activity, staffing or processes have changed.

Containers that are repeatedly collected half-full, or collections taking place more frequently than necessary, can create avoidable costs. Equally, containers that are consistently overflowing indicate that the service is not matched properly to demand.

The broader advice is to review fill levels and collection patterns regularly and adjust the service around real waste volumes rather than relying on historical assumptions.

Make waste management part of laboratory processes

The strongest waste systems are the ones designed around the laboratory itself. Staff training is important, but training alone will not compensate for confusing bins, inconsistent labels or processes that make the correct disposal route inconvenient.

Waste should be considered when laboratory procedures are reviewed, new equipment is introduced or working areas are redesigned. That creates an opportunity to address waste before poor habits become embedded.

In practical terms, good laboratory waste management comes down to understanding what waste you are producing, giving staff a simple and consistent system for handling it, and regularly checking whether your collection arrangements still make sense. This approach can reduce unnecessary costs and waste volumes without compromising the specialist controls laboratories need.

Graham Flynn is a waste management expert and managing director of Aventa