WasteCap Wisconsin, Inc.

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WasteCap Wisconsin, Inc. Emerging Markets for
Sheetrock
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• Statewide, nonprofit 501(c)(3) organization
• Provide waste reduction and recycling assistance
  for businesses
• Target Materials Construction and Demolition
  Debris, Food Waste, Computers

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• Lawrence University
• Madison Area Builders Assn
• Madison Gas Electric
• Metropolitan Builders Assn. of Greater Milwaukee
• Overture Center for the Arts
• Retzer Nature Center
• Royster-Clark, Inc.
• Schlitz Audubon Nature Center
• Urban Ecology Center

Their Success WasteCap Clients

• Alliant Energys Worldwide Corporate
  Headquarters
• Affiliated Engineers, Inc. Corporate
  Headquarters
• Appleton City Center East
• Badger Army Ammunition Plant
• Don Simon Homes/Veridian Homes
• Epic Systems Corporation
• Harley-Davidson Motor Co.

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• Construction and Demolition (CD) Debris
• More CD in WI than residential, municipal solid
  waste
• Approx 1/3 of WI MSW is CD
• Nationally, the EPA estimates that 136 million
  tons of CD debris are generated each year
• Relatively clean, high-value materials
• Interest and activity growing

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• Drywall
• 2nd Largest material in construction waste
• Relatively easy to separate
• 2,000 ft2 home 1 ton
• Rule-of-thumb 1 lb per ft2
• Construction 64 of generation

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Drywall Calcium Sulfate
Korcak, 1996
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Drywall Properties

• Increases available calcium sulfur
• Reduces sodium uptake
• Loosens clay soils and allows water air to
  circulate
• May reduce erosion
• Can reduce aluminum toxicity in some soils
• CANNOT be used to raise soil pH like lime

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Common Drywall Types

• Regular residential ½
• Type X Firecode C, 5/8
• Green Board
• Blue Board
• Dens Glass

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Markets

• Landfill
• Incineration
• Reuse
• Recycling

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Recycling Markets

• Gypsum wallboard manufacture
• Off Site Land Application (farmers field)
• On Site Land Application
• Fertilizer Manufacture

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Off Site Land Application-Commercial Alliant
Energy Corporate Headquarters Opus North
Corporation Flad Associates
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Alliant Energy

• Found farmer
• WI DNR Exemption
• Type X drywall not allowed
• Type X - Less than 1 fiberglass
• Study by Dick Wolkowski, UW-Madison

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Processing
Horizontal Grinder vs. Tub Grinder Other options
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• Alliant Construction Results
• 75 recycling rate by volume
• Over 15,000 saved through avoided disposal
  costs
• Efforts covered by local, statewide national
  press awards presentations
• 1st Type X drywall recy. exemption in WI
• Contractor recycling on other sites

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On Site Land Application-Commercial Schlitz
Audubon Nature Center The Jansen Group The Kubala
Washatko Architects
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On Site Land Application Schlitz Audubon Nature
Center

• DNR Exemption soil analysis
• Hauled to on-site location for use with berm.
• Saved tipping fees
• Mixed into the soil

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Application Rates

• Soil Test rate based on amount of silt clay
  present
• Estimate/Calculate
• 1 lb gypsum/ft2 building
• Recc. application rate 250 lbs/1000 ft2
• Calcium 100 200 lbs/acre
• Sulfur 25 50 lbs/acre
• 2 tons/acre on sandy soils and 5 tons/acre on
  medium-textured soils.

Wolkowski, RP 2003. Using recycled wallboard for
crop production University of Georgia. 12/02.
On-Site Beneficial Use of Scrap Wallboard in
Georgia Residential Construction
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• Schlitz Construction Results
• 78 recycling rate by weight
• 42 savings in disposal costs
• Talk Tour result recy. on other sites
• 3rd Type X drywall recy. exemption in WI
• Contractor recycling on other sites

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Fertilizer Manufacture

• Need for stable, long-term, large market
• Royster-Clark, WasteCap WI, EPA, WI DNR, Veridian
  Homes, Overture Center, Packer Industries,
  Construction Waste Solutions . . .

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Fertilizer Manufacture

• Collected 100 tons
• Kept dry
• Ground
• Screened
• Screened
• Screened
• Made Fertilizer!
• Next step 2nd test. economic analysis

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Other Markets

• Composting bulking agent/additive
• Athletic Field Marker
• Livestock
• Bedding
• Cement

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Contact Us
WasteCap Wisconsin, Inc. 2647 North Stowell
Ave. Milwaukee, WI 53211-4299 [phone] fax
[phone] jkunde_at_wastecapwi.org wastecap_at_wast
ecapwi.org www.wastecapwi.org