Recyclers need to understand differences in materials properties when separating product in single-stream recyclate. Consider the statements below and fill in the blanks:
For example, we can use automation and our knowledge of materials properties to:
- Separate aluminum from steel using a strong _______ (Blank 1).
- Separate glass from paper by using air blowers and taking advantage of the materials' difference in _______ (Blank 2).
- Separate glass from plastic by taking advantage of the materials' _______ (Blank 3) and crushing a mixture of the materials, followed by sieving.
Workbank: hammer, laser, worker, magnet, density, strength, brittleness, elasticity, resilience, transparency, color, conductivity, $\ce{CO2}$ footprint, embodied energy