Improving Waste Separation at SMEs

Exploring waste behaviour

At SMEs, co-workers are responsible for waste disposal. Therefore, their behavioural intention towards pro-environmental action plays a major role. In this study, we have used agent-based modelling and simulation to explore the waste behaviour of the actors in the system. The models were co-created in participatory workshops, surveys and interviews with stakeholders, domain experts and relevant actors. Additionally, we co-created and tested practical social and technical interventions with the model.

Collaborative modelling method

We used the collaborative modelling method Lange reported to conceptualise, implement, test and validate the models. Five policies that affect waste separation behaviour were included in the model. The model and simulation results were cross-validated with the help of a literature study. The results were validated through experts and historical data to sketch a generalisable idea of networks with similar characteristics.

Behaviour profiles and policy interventions

These results indicate that combinations of behaviour profiles and certain policy interventions correlate with waste separation rates. In addition, individual waste separation policies are often limitedly capable of changing the behaviour in the system. The study also shows that the intention of co-workers concerning environmental behaviour can significantly impact waste separation rates.

Future research

Future work will include the role of households, policies supporting separating multiple waste types, and the effect of waste separation on various R-strategies.

Authors

• Kasper Lange
• S.I.M. Kerssens
• G. Korevaar
• Martijn Warnier