Dangerous Waste Designation of Latex Paint 2003 Northwest Hazardous Waste Conference June 2, 2003...
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Transcript of Dangerous Waste Designation of Latex Paint 2003 Northwest Hazardous Waste Conference June 2, 2003...
![Page 1: Dangerous Waste Designation of Latex Paint 2003 Northwest Hazardous Waste Conference June 2, 2003 Robert Rieck.](https://reader033.fdocuments.net/reader033/viewer/2022061600/56649e205503460f94b0bff5/html5/thumbnails/1.jpg)
Dangerous Waste Dangerous Waste Designation of Latex PaintDesignation of Latex Paint
2003 Northwest Hazardous Waste Conference2003 Northwest Hazardous Waste ConferenceJune 2, 2003June 2, 2003
Robert RieckRobert Rieck
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Drowning in Paint?Drowning in Paint?
![Page 3: Dangerous Waste Designation of Latex Paint 2003 Northwest Hazardous Waste Conference June 2, 2003 Robert Rieck.](https://reader033.fdocuments.net/reader033/viewer/2022061600/56649e205503460f94b0bff5/html5/thumbnails/3.jpg)
Drowning in Paint?Drowning in Paint?
• In 2001, three million lbs. of latex collected in Washington State-20% of total HHW.
• In 2002 King County Wastemobile collected 245 tons - 27% of total HHW.
• In 2002 City of Seattle – 287 tons collected.
• 38% reused and 62% recycled (cement kiln).
![Page 4: Dangerous Waste Designation of Latex Paint 2003 Northwest Hazardous Waste Conference June 2, 2003 Robert Rieck.](https://reader033.fdocuments.net/reader033/viewer/2022061600/56649e205503460f94b0bff5/html5/thumbnails/4.jpg)
Paint Recycling QuestionsPaint Recycling Questions
• Is MSW landfilling a good option?
• Is it a good idea to give paint away?
• Sampling paint for dangerous waste constituents?
• If so, what are those constituents?
![Page 5: Dangerous Waste Designation of Latex Paint 2003 Northwest Hazardous Waste Conference June 2, 2003 Robert Rieck.](https://reader033.fdocuments.net/reader033/viewer/2022061600/56649e205503460f94b0bff5/html5/thumbnails/5.jpg)
What’s in latex Paint?What’s in latex Paint?
Solvents: keeps paint fluid Water, glycols
Binders: resins, emulsion polymers
Pigments: add color, gloss,durability
Iron oxide, titanium dioxide etc.
“Other” additives: biocides, thickeners, anti-foaming agents
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What’s in Paint? (cont.)What’s in Paint? (cont.)
• Paint prior to 1978-may contain lead.
• Paint prior to 1992-may contain mercury added as a biocide.
• Current formulations vary considerably. Highly dependent on type and application.
• Paint manufacturers avoid ingredients that may cause hazardous waste status.
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Paint Sampling StudiesPaint Sampling Studies
• City of Seattle-1989 Pilot paint recycling and disposal study
• Sorted out obvious hazardous (mercury and lead) and non-recyclable (dried and “sour”) paint.
• Non recyclable portion tested non-hazardous as federal or state waste.
• King County Results for 2001• Recyclable paint not hazardous• Non-recyclable portion-hazardous for HOC’s and
mercury.
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Paint Sampling Studies (cont.)Paint Sampling Studies (cont.)
• King County results in early 2003– Reusable paint DW for mercury only. (0.2 mg/L)– Non-recyclable paint not DW for mercury, but DW for
(HOCs). (6,500 ppm)– Expectation – mercury levels should decrease over
time.• Portland Metro Paint Recycling
– Non-recyclable paint solidified and landfilled.– Low mercury and halogen levels.– Reusable paint product-Mercury avg. 23 ppm and
Lead level 25 ppm or less.
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Is it Dangerous Waste?Is it Dangerous Waste?
• 1995 – Cal Poly paint sampling project. 70 ppm mercury and 11ppm benzene. Hazardous by CA. standards.
• 1997 - Natl. Paint Assoc. study shows – new latex not hazardous.
• 2002 - EPA chooses not to list manufacturing paint wastes as hazardous.
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Is it a Dangerous Waste? (Cont.)Is it a Dangerous Waste? (Cont.)
• Can new latex be a RCRA listed or characteristic waste? Not usually.
• Could be a state criteria toxic waste-WT02. – Exterior high gloss (2-Butoxyethonol)– Int/ext. acrylic gloss enamel (methy ether
diethylene glycol, texonol)
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What’s in the can?What’s in the can?
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Contamination FactorsContamination Factors
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Contamination FactorsContamination Factors
• Homeowner adding bad stuff to cans:• Paint stripper, brake fluid, used oil, pesticides
• Old cans of mercury or lead paint.
• Oil based paint mixed in.
• Cans of industrial type paint e.g. marine paint.
• Good sorting protocol needed.
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HOW DO YOU GET TO HERE?HOW DO YOU GET TO HERE?
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Recommendations Recommendations
• Concentrate on good sorting protocol.– Weed out bad paint
• Sample non-recyclable paint formercury, lead and HOC’s.
• Educate homeowners about necessity to keep paint uncontaminated.
Sell, give away, Landfill, TSD, cement kiln- You Decide!