lab waste mgmt guide
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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 PresentationTRANSCRIPT
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Lab Waste Mgmt GuideDave WaddellLocal Haz Waste Mgmt Program in King [email protected]
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Target AudiencesAs many labs as possibleAnalyticalBiotechBiomedicalHealthcare/HospitalsEducational/Schools
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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
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Chemical StorageMost guides have similar systems Need 19 separated shelves & 3 cabinets
Not every facility has that much shelf space
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Simplified Storage PatternWorks in smaller spacesCombines compatibles9 shelves & 3 cabinets
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SpillsGeneral guidanceNot focus of guideMajor vs. MinorUse UWs guidanceTraining examplesNH40H vs. NaOHClear puddle
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Potentially Explosive CompoundsNot exhaustiveCompounds that degradeCompounds that explode when contaminated
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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
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1978 date on side, explosivePeroxide crystals on THF
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Picric Acid and PicratesTrinitrophenol (think TNT)Histology stainsBouins fix w/ formalinWeak acid when wetExplosive when dry Shock sensitiveReacts with metalsMetal picrates high explosives
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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
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Hazardous Waste ReductionChemical Specific GuidanceWhys it there?Issues?Regulated?Disposal options?P2 options?
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Ethidium BromideVisualize nucleic acidsPotent mutagenDispose as HW or treatFilter or deactivateAlternative: SYBR SafeUsed in major facilitiesNot as effective for RNA staining
- Alcohol ManagementIgnitable if >24%Not allowed down drainMartini is about 35%Returned drink = HW?Recycle & reuse potentialFiltration or distillationDilution to just to get to
- AldehydesFormaldehyde: Tox HW if >1%Not allowed in sewer if >0.1%Can be deactivatedNeutralex 1 lb takes 1 gal to 15 ppmLimit = 1000 ppm, so can dilute 50:1GlutaraldehydeCold sterilant, soak instrumentsAllowed in sewer if
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On-Site TreatmentTreatment by GeneratorGive general guidelinesCondensed 4 TBG fact sheetsProvide info on countingPermit by RuleList 2 benefitsList conditions to meet PBR
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King County Sewer GuidelinesDischarges cant endanger NPDES permit compliancePrecautionary principleProtect worker safetyProtect system functionProtect receiving watersNo hazardous waste to sewerUnless treatability shown
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Why Labs Love the Sewer GuidelinesVery specificConsistent basis for guidanceProvide waste reduction optionsHave cost reduction suggestionsShorter than many guidesThe sewer table is one page!