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Chapter 21: Problem 10

Distinguish between MRFs, mixed waste processing, and single-stream recycling.

Short Answer

Expert verified
MRFs are plants that separate and prepare recyclable materials for resale. Mixed waste processing involves sorting both solid and construction waste and recycling resources from it. Single-stream recycling is a system where all recyclable materials are mixed and then separated at a recovery facility.

Step by step solution

01

Understanding MRFs

MRFs, also known as Material Recovery Facilities, are specialized plants that receive, separate and prepare recyclable materials for marketing to end-user manufacturers. These facilities are primarily designed to separate materials like glass, paper, plastic, and metals from waste.
02

Understanding mixed waste processing

Mixed waste processing is a term associated with systems that mix municipal solid waste and construction and demolition debris for processing. Systems typically recover recyclable materials such as ferrous metal, mixed non-ferrous metal, glass, plastic, and paper for recycling. Other non-recyclable materials are then used for waste-to-energy initiatives which involves the combustion of waste to generate electricity or heat.
03

Understanding single-stream recycling

Single-stream recycling refers to a system in which all paper fibers, plastics, metals, and other containers are mixed in a collection truck, instead of being sorted into separate commodities by the resident and handled separately throughout the collection process. In single-stream, both the collection and processing systems are designed to handle this fully commingled mixture of recyclables, with materials being separated for reuse at a materials recovery facility.

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