GYPSUM DRYWALL AND WOOD RECYCLING |
Recycling is a valuable tool for builders to use in addressing waste management
issues. It can help to extend our resources while reducing costs to builders
and ultimately homeowners. Some states and municipalities have strong C&D
recycling programs. Still, recycling is heavily dependent on individual builders
because builders are most capable of identifying and understanding the opportunities
available in their business. They are also adept at forming the partnerships
between designers, recycling centers, government and suppliers that are required
to make successful recycling endeavors.
Recycling activities begin with building partnerships and material choices.
Other factors that influence the efficiency of recycling include:
- sorting and storage space
- contamination
- transportation
- regulations (processing, air, water, disposal, storage)
- market availability
Waste materials must be processed to market specifications. Specifications
vary by market type but will typically include: 1. separation from other wastes
and 2. removal of contaminants (nails, plastic, shingle, etc.). Some markets
will also require processing through grinding and chipping. Contact local markets
or recycling centers beforehand to secure a contract for delivery of waste materials
and to determine what processing is required for material acceptance.
New construction materials are more readily recycled than demolition or renovation
wastes. Demolition and renovation wastes are more difficult to separate, resulting
in higher contamination levels. The amount of contamination is a key factor
in determining market acceptance. Once it is clear that materials can be separated
to maintain quality for a particular market, the transportation costs and regulations
concerning storage or processing of those materials must be weighed. The partnerships
built with designers, recyclers and others will help to overcome obstacles and
lay out the neccessary procedures for a successful recycling operation.
Besides cardboard, wood and gypsum drywall are the two largest contributors
to the new construction waste stream. Markets are available for recycling these
materials and creative new uses are still being developed.
Markets for Used Gypsum Drywall include:
- New drywall and cement production
- Water, sludge and manure treatment
- As a component in flea powder or athletic field marking products
- Absorbtion of moisture in animal bedding or anti-slip agent in shop applications
- Agricultural land applications or residential soil amendment
- Compost bulking agent
Markets for Wood Waste include:
- Reclaimed/Remilled lumber for use in other construction and furniture projects
- Feedstock for engineered lumber, pallet production and boiler fuel
- Landscape mulch, soil conditioners, animal bedding, playground cover
- Compost and sewage sludge bulking mediums
The 'Waste Material Exchange' section of this guide
offers links to a host of buyers and sellers of materials. Other local markets
can be identified by contacting local government
environmental or commerce officials, or local
Home Building Association.These organizations can help find manufacturers,
compost facilities, salvage lumber stores or unique opportunities offered only
in your area. If considering on-site processing and recycling, refer to 'Recycling
Equipment Links' for information about equipment purchases and incentives.
Also be sure to check with governmental agencies concerning noise, air, water
and solid waste issues if recycling on-site.
Additional Gypsum and Wood Management Resources:
Drywall
Recycling provides an overview of gypsum management on a construction site
and existing and potential markets. This factsheet also offers a glimpse at
regulations governing the processing of gypsum as well as equipment considerations.
California Integrated Waste Managment Board
- http://www.ciwmb.ca.gov/publications/condemo/43195069.doc
The Gypsum Association is a non-profit
trade association for gypsum board manufacturers. The Association has developed
guidelines for the
recycling of construction gypsum on-site and recommends this practice due
to the scale of most residential construction projects. Another recommended
publication for understanding current gypsum markets is Gypsum's Environmental
Story in North America (http://www.gypsum.org/pdf/gypsum3.pdf
).
Gypsum
Wallboard and Recycling Reuse Options in the State of Vermont - An in-depth
report on the characteristics of gypsum wallboard and market opportunities for
recycling. Vermont Agency of Natural Resources by Emma Marvin
- http://www.anr.state.vt.us/dec/wastediv/recycling/gypsum.pdf
National
Wood Recycling Directory - Click 'Wood Recovery' in left column, then 'National
Wood Recycling Directory'. This directory was designed to help individuals,
groups, communities, builders, remodelers, and demolition contractors identify
receiving sites for recovered wood. It contains a nationwide listing of over
700 wood residue receiving centers. Search the directory or add a listing from
this site. American Forest and Paper Association (AF & PA)
- http://www.afandpa.org/recycling/Rec_introduction.html
The National Wooden Pallet & Container
Association (NWPCA) is an international trade association representing the
interests of manufacturers, recyclers and distributors of pallets, containers
and reels. Find a supplier, ask a question, or read through the technical resources
regarding pallets.
- http://www.nwpca.com/
The Urban Wood
Waste Fact Sheet offers background on wood waste characteristics and market
opportunities. Market opportunities are directed at the California audience
but applicable to many regions. Also provides links to additional publications.
California Integrated Waste Management Board
Wood Waste Best Practices - Focus
is on demolition and landclearing, but provides a number of useful strategies
that could be applied to new construction as well. Contains an especially useful
overview on size reduction equipment (grinding, shredding, chipping) and screening
equipment.
- http://www.cwc.org/wood_bp.htm
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(Fact Sheet 7 of 10)
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