C&D processing systems sort and remove materials that are recovered and processed into recycled products.
What is C&D Waste?
ReEnergy’s portfolio company ReSource Waste Services processes and recycles construction and demolition debris, which is commonly referred to as “C&D.” ReSource Waste owns and operates materials recovery facilities that improve the environment by optimizing the recovery of material from C&D and diverting that material from disposal.
C&D waste is typically delivered to recycling facilities by:
What Does Recycling C&D Waste Produce?
ReSource Waste Services and similar companies process a variety of solid, non-hazardous C&D waste, including wood; ferrous and non-ferrous metals; drywall; asphalt brick and concrete; and shingles.
Reusable material is recovered and processed into recycled products. There is a strong demand for these recovered products across multiple end markets, including biomass-to- energy facilities, medium-density fiberboard manufacturing, road construction, cardboard and drywall manufacturing; recycled plastic and metal products; miscellaneous construction materials and soil substitutes.
The processing of C&D debris also results in “fines,” small particles that consist primarily of soil, wood, concrete, drywall, rock and other miscellaneous materials. Many state and local governments allow these fines to be used beneficially as alternative daily cover (ADC) and shaping and grading material at landfills, reducing the need for landfills to use virgin soils for those purposes.
ReSource Waste Services’ C&D Processing System
ReSource Waste’s processing systems use state-of-the-art equipment and trained personnel to sort waste mechanically and manually. Although C&D facilities can differ in layout and equipment, the below process is used at many facilities, including some of ReSource Waste’s facilities.
1. Material is Received
The inbound material is stockpiled on a concrete pad.
2. Initial Size Separation
The material is then fed into the process line, which includes a screen for initial size separation.
3. Picking Station
This is followed by a picking station at which staff use positive-pick methods to remove materials such as wood, metals, cardboard, and concrete/bricks.
4. Further Processing
The wood fraction is further processed using a series of equipment including a grinder, magnets for ferrous metal separation and a screen for size segregation to produce wood ships suitable for use as fuel in power plants.
5. C&D Fines are Created
The processing of C&D debris also creates “C&D fines,” a mixture of miscellaneous material particles that resembles soil. Our C&D fines are beneficially reused for daily cover and shaping and grading at landfills, reducing the need for landfills to use virgin soils. The remaining residues (typically less than 30% of inbound materials) are segregated and sent to landfill.
6. Products are Sold
The end result are product streams – woodchips, metals, aggregate, corrugated paper, dirt fines, and other recyclables – that meet or exceed quality standards required by the markets to which the products are directed.
Where Can I Get More Information?
Recycling C&D waste has many environmental, economic and societal benefits. If you have additional questions about C&D recycling or on other related topics, pleases visit these authoritative websites for more information.