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3R’s (waste management)

3R’s (waste management)

3R’s is a term used to describe waste management model. The 3R model: reduce-reuse-recycle, not to be mixed up with other terms using the 3Rs term. Read more..

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Closed loop system

Closed loop system

Closed loop system (earth) Ecologists describe a closed-loop system as one that does not exchange matter with the outside world. Although the only truly closed-loop system may be the Earth itself, some industrial subsystems can approach closed loops, and the concept...
Material recovery

Material recovery

Extraction of materials from the waste stream for reuse or recycling. Examples include source separation, front-end recovery, in-plant recycling, post combustion recovery, leaf composting and so on.

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