Ten Ways to Reduce Plastic Waste in the Lab

Ten Ways to Reduce Plastic Waste in the Lab
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1 year ago

Ten Ways to Reduce Plastic Waste in the Lab

It’s Plastic Free July and it’s a great time to consider how much plastic is still being used in the many thousands of science labs around the world today. Microbiology labs have for many years relied heavily on single-use plastic items such as petri dishes, pipettes and tips, tubing, spreaders, vials, and more. Although these labs are achieving great advances in life science, the impact on the environment is huge and we should always be looking for ways to reduce plastic waste in science research.

Many labs have already started implementing some great initiatives to help reduce their use of single-use plastics and make their operations as green as possible. In our Life Scientists’ Guide to Sustainability we shared the thoughts and ideas of a number of life scientists who are doing their bit to make positive changes in their labs.

When you’re working to tight deadlines we know it’s often more convenient to opt for plastic, but reusing and recycling doesn’t have to be time-consuming if effective systems are put in place. It’s not only good for the environment, but it can save money too, so that’s why we’ve put together a quick checklist of ten ways to help you reduce plastic waste in your lab…

 

1. Switch out plastics for other materials

Consider which plastic items you use regularly that could be switched out for those made of alternative materials. Glass is often the most obvious substitute, with a large number of commonly used items being available in glass, such as Falcon tubes, serological pipettes, universal vials, beads, filter bottles, flasks and petri dishes. Metal inoculating loops are a great alternative to plastic, although they will need to be flame sterilised before being used again. Another great tip is to use wooden toothpicks to pick bacterial colonies instead of plastic pipette tips!

 

2. Plan ahead with care

When planning your next experiment, think hard about the items you will need and whether you could achieve the same results using less plastic. Talk to your colleagues and mentors to ask if they have successfully carried out similar experiments using different items. Be honest about the quantities you actually need, and consider whether certain items could possibly be reused multiple times within the same experiment.

 

3. Think smaller, thinner & fewer

Consider using the smallest plastic vessel that is feasible for your particular experiment. It may be that you are used to ordering and using a certain size of plastic tubing because you know it can be used in a variety of different scenarios. But it could be less wasteful and could also save your lab money to use a smaller, better-suited option. Buying solutions as concentrate is another great way to reduce the amount of plastic bottles you get through, and consider using thinner plastic gloves where it is safe to do so.

 

4. Wash, decontaminate & autoclave

Where possible, always try to wash and reuse plastic items such as tubing rather than throwing them away. Depending on your experiment and the level of contamination, items will require different cleaning treatments in order to be used again. For some a simple rinse will be enough, however some might require autoclaving, which is a form of chemical decontamination using heat and pressure. Autoclaving is commonly considered an excessive use of energy, but it is small in comparison to the remaking, transporting and disposing of a plastic item.

 

5. Shop smarter

When ordering items for your lab, think carefully about quantities and suppliers. Have conversations with your regular suppliers to find out if they have glass or other alternatives, and consider the sustainability of their operations. Order items in bulk to reduce the amount of bubble wrap and polystyrene used in packaging when transporting the items to you. Speak to other lab managers within your building and arrange to place large orders together where possible to reduce packaging waste.

 

6. Share items with other labs

Consider sharing items with other labs and groups within the same building. Some institutes have building-wide inventories which are tracked via an online system. This allows researchers to instantly see which items are available and can prevent unnecessary repeat orders of items which may actually be available in different departments. Take a look at our Life Scientists’ Guide to Sustainability for specific examples of such systems and their operations.

 

7. Use a specialist waste collection service

Many institutes will already have arrangements in place with specialist waste contractors who will collect uncontaminated items for recycling such as disposable gloves, visors, facemasks, and other plastic-based PPE. Speak with the waste management team in your building to find out what is already available and make use of these services where possible. Also, engage with your suppliers to find out if they offer to collect used packaging. Many will encourage the return of packaging items such as polystyrene pieces in order for them to be used again.

 

8. Label & use colour coded bins

Make recycling as quick and easy as possible by using colour coded bins and ensuring that they are labelled to avoid confusion. Blue bins are commonly used for paper, aluminium and plastic recyclables although there is no universal colour code, so labelling is important to ensure clarity. Your lab’s recycling and reuse systems should be explained fully to every new staff member on arrival.

 

9. Create incentives for staff to recycle

Encourage staff to recycle and make it as easy as possible for them to do so. Consider creating simple reward schemes, such as a prize or special treat for the team at the end of each month if recycling or plastic use targets are achieved. Do not allow plastic coffee cups, water bottles, cutlery or straws into the lab. Put clear systems in place to remind staff of the rules and make them as simple as possible to follow.

 

10. Join a national scheme

There are a number of national and international initiatives and online tools available to encourage labs to become greener and to reduce their plastic use. LEAF (the Laboratory Efficiency Assessment Framework) is a great example of a tool developed by Sustainable UCL containing actions users can take to save plastics, water, energy and other resources in their labs. Those taking part in the self-assessment programme are awarded Bronze, Silver or Gold levels depending on how many sustainability actions they take. You can find more examples of such schemes in our Life Scientists’ Guide to Sustainability.

 

More advice on lab sustainability from Hello Bio

If you’d like to read more about lab sustainability, we have some more great resources on our blog. Take a look here:

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