Construction and demolition waste
- Construction and demolition waste
Construction and demolition waste (C&D waste) consists of unwanted material produced directly or incidentally by the construction or demolition industries. [ [http://www.wastenot.ie/pport/web/Classification/2/5.13.1?did=597726202&pageUrl=/Classification/2/5.7 Waste not Ireland] ] This includes building materials such as insulation, nails, electrical wiring, and rebar, as well as waste originating from site preparation such as dredging materials, tree stumps, and rubble. C&D waste may contain lead, asbestos, or other hazardous substances. [ [http://www.nsc.org/ehc/glossary.htm National Safety Council] ]
Certain components of C&D waste such as plasterboard are hazardous once landfilled. Plasterboard is broken down in landfill conditions releasing hydrogen sulfide, a toxic gas.
There is the potential to recycle many elements of C&D waste. Rubble can be crushed and reused in construction projects. Waste wood can also be recovered and recycled.
Government or local authorities often make rules about how much waste should be sorted before it is hauled away to landfills or other waste treatment facilities. Some hazardous materials may not be moved, or demolition begun, before the authorities have ascertained that safety guidelines and restrictions have been followed. Among their concerns would be the proper handling and disposal of such toxic elements as lead, asbestos or radioactive materials.
Gallery
ee also
*List of waste management companies
*List of waste management topics
*List of solid waste treatment technologies
*List of Superfund sites in the United States
*List of topics dealing with environmental issues
*Pollution
*Recycling
*Superfund
*Waste types
References
Wikimedia Foundation.
2010.
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