Consumer disposal infrastructure and knowledge are key to enabling biodegradable bioplastic circularity

Why It Matters

For designers and engineers developing products with biodegradable bioplastics, understanding the consumer's role in the material's lifecycle is crucial. This research highlights that product design alone is insufficient; the surrounding system, including waste management facilities and consumer education, must be considered to achieve true circularity.

Key Finding

Consumers are more likely to dispose of biodegradable bioplastics properly if they have access to organic waste bins and understand what the materials are and how to discard them.

Key Findings

• Access to adequate organic waste infrastructure is strongly associated with intentions to dispose of biodegradable bioplastics correctly.
• Pre-existing knowledge of biodegradable bioplastic terminology and disposal routes significantly influences disposal intentions.
• Consumer behaviour is a pivotal factor in managing biodegradable bioplastic waste within sustainable systems.

Research Evidence

Aim: To identify and structure systemic factors influencing the disposal of biodegradable bioplastics by consumers within a circular bioeconomy.

Method: Exploratory network analysis based on survey data.

Procedure: A framework combining behavioural and design theories was developed. This framework was then used to structure survey data collected from participants regarding their understanding and intentions for disposing of biodegradable bioplastics.

Sample Size: 741 participants (457 from the UK and 284 from the US).

Context: Consumer behaviour and waste management of biodegradable bioplastics in fast-moving consumer goods.

Design Principle

Design for circularity requires a holistic approach that integrates product design with user behaviour and systemic infrastructure.

How to Apply

When designing products using biodegradable bioplastics, research the local waste management infrastructure and consider how to clearly communicate disposal instructions to the target user.

Limitations

The study focused on university students, which may not represent the general population. The research was conducted in the UK and US, and findings might vary in regions with different waste management systems.

Student Guide (IB Design Technology)

Simple Explanation: If you want people to recycle or compost biodegradable plastic packaging, you need to make sure they know how to do it and that there are places for them to put it.

Why This Matters: This research shows that even the most innovative biodegradable materials will fail in a circular system if users don't know what to do with them or can't dispose of them correctly.

Critical Thinking: To what extent can product designers influence or overcome limitations in public waste management infrastructure through their design choices?

IA-Ready Paragraph: The successful implementation of biodegradable bioplastics in a circular economy is contingent upon consumer behaviour and the availability of appropriate disposal infrastructure. Research indicates that factors such as access to organic waste facilities and consumer knowledge of material terminology and disposal routes are strongly correlated with correct disposal intentions, highlighting the need for designers to integrate systemic considerations into their design practice. (Kakadellis et al., 2024)

Project Tips

• Consider the entire lifecycle of your product, not just its use phase.
• Investigate the waste management systems relevant to your product's end-of-life.
• Think about how you can educate users about proper disposal.

How to Use in IA

• Use this research to justify the importance of considering user disposal behaviour and infrastructure in your design process.
• Cite this study when discussing the challenges and opportunities of using biodegradable materials.

Examiner Tips

• Demonstrate an understanding of the systemic factors influencing material lifecycles.
• Show how your design addresses not just function but also end-of-life considerations.

Independent Variable: ["Access to organic waste infrastructure","Pre-existing knowledge of BBP terminology and disposal routes"]

Dependent Variable: ["Intentions to dispose of BBPs in different waste streams"]

Controlled Variables: ["Participant demographics","Geographic location (UK/US)"]

Strengths

• Utilizes a systems-thinking framework to analyze a complex issue.
• Employs a robust quantitative methodology (network analysis) with a substantial sample size.

Critical Questions

• How can designers effectively educate consumers about complex disposal requirements for novel materials?
• What are the ethical considerations for designers when introducing materials that rely heavily on external infrastructure for their sustainability claims?

Extended Essay Application

• Investigate the feasibility of designing a product that actively guides users towards correct disposal, perhaps through integrated labelling or smart features.
• Explore the potential for designing a localized, community-based collection system for specific biodegradable materials.

Source

Closing the loop: Enabling circular biodegradable bioplastic packaging flow through a systems-thinking framework · Cleaner and Responsible Consumption · 2024 · 10.1016/j.clrc.2024.100183