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5 R's of Zero Waste
Refuse, Reduce, Reuse, Recycle, Repurpose.
Closed-loop recycling
Recycling into new similar products.
Secondary recycling
Recycling into different products.
Quality downgrade
Occurs when the same piece of plastic is recycled 2-3 times before its quality decreases to the point it can no longer be used.
Biological metabolism
Refers to a closed organic loop.
Technical metabolism
Refers to a closed inorganic loop.