Recycling
Recycling is a recovery process in which waste materials are reprocessed into products, materials, or substances for their original purpose or another material use. It does not preserve the original product function and generally excludes energy recovery, fuel production, and backfilling, though legal definitions and calculation points vary by jurisdiction.
In simple terms
Recycling usually involves collection, sorting, preparation, and a mechanical, chemical, biological, or metallurgical process that creates usable secondary material. Unlike remanufacturing, it does not restore the original product. Yield, contamination, material quality, and the application replaced all affect the result. A collection claim is not evidence that material was recycled, and recyclable design does not guarantee infrastructure access. Some materials support closed-loop recycling; others lose quality or quantity across cycles.
Why it matters
Recycling can keep material out of disposal and displace some virgin-material production. Its value is greatest when collection is effective, hazardous substances are controlled, output quality is maintained, and secondary material replaces primary input. Transparent mass balances help prevent losses, residues, or energy recovery from being presented as recycled material.
Example
A municipality separately collects aluminum cans, a facility sorts and cleans them, and a smelter processes the scrap into sheet for new cans. Reporting distinguishes collected weight from accepted input, process losses, residues, and actual recycled output. The example is closed-loop when the material returns to an equivalent can application.
How it differs
Remanufacturing
Recycling reprocesses waste material; remanufacturing restores a used product through inspection, component retention or replacement, reassembly, and testing against a specified condition.
Closed-loop recycling
Recycling is the broad recovery process. Closed-loop recycling is a narrower pathway in which recovered material returns to the same or an equivalent product system while preserving the needed quality.