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Lab Waste Mgmt Guide. Dave Waddell Local Haz Waste Mgmt Program in King County 206-263-3069 [email protected]. Target Audiences. As many labs as possible Analytical Biotech Biomedical Healthcare/Hospitals Educational/Schools. Perspectives. Why focus on labs? - PowerPoint PPT Presentation
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Lab Waste Mgmt GuideDave WaddellLocal Haz Waste Mgmt Program in King [email protected]
Target AudiencesAs many labs as possibleAnalyticalBiotechBiomedicalHealthcare/HospitalsEducational/Schools
PerspectivesWhy focus on labs?High risk chemicalsCommon industryWhy these compounds?Many are high riskConfusing to characterizeWhy sewer guidelines?Lab waste often liquidLocal regs less known
Chemical StorageMost guides have similar systems Need 19 separated shelves & 3 cabinets
Not every facility has that much shelf space
Simplified Storage PatternWorks in smaller spacesCombines compatibles9 shelves & 3 cabinets
SpillsGeneral guidanceNot focus of guideMajor vs. MinorUse UWs guidanceTraining examplesNH40H vs. NaOHClear puddle
Potentially Explosive CompoundsNot exhaustiveCompounds that degradeCompounds that explode when contaminated
Ethers & Peroxide FormersMany lists of these compounds availableSearch peroxide formerAvoid them if you canBuy with preservativesLabel & monitor themEmpty containers scaryRule of thumb, dispose one year after openingPotassium metal issue in schools
1978 date on side, explosivePeroxide crystals on THF
Picric Acid and PicratesTrinitrophenol (think TNT)Histology stainsBouins fix w/ formalinWeak acid when wetExplosive when dry Shock sensitiveReacts with metalsMetal picrates high explosives
Ammoniacal Silver Nitrate StainSilver stains common in histology labsIf solution sits Silver Azide can formCan detonate if exposed to light or movedLook for colorless crystalsRight. Thanks a lot!Can be deactivated with hydrochloric acid
Hazardous Waste ReductionChemical Specific GuidanceWhys it there?Issues?Regulated?Disposal options?P2 options?
Ethidium BromideVisualize nucleic acidsPotent mutagenDispose as HW or treatFilter or deactivateAlternative: SYBR SafeUsed in major facilitiesNot as effective for RNA staining
On-Site TreatmentTreatment by GeneratorGive general guidelinesCondensed 4 TBG fact sheetsProvide info on countingPermit by RuleList 2 benefitsList conditions to meet PBR
King County Sewer GuidelinesDischarges cant endanger NPDES permit compliancePrecautionary principleProtect worker safetyProtect system functionProtect receiving watersNo hazardous waste to sewerUnless treatability shown
Why Labs Love the Sewer GuidelinesVery specificConsistent basis for guidanceProvide waste reduction optionsHave cost reduction suggestionsShorter than many guidesThe sewer table is one page!