Hazardous Waste

1
Hazardous Waste

• Oregon State University
• Environmental Health and Safety

2
Hazardous Defined

• Flammable (flash point lt140o F)
• Corrosive (pH lt2 or pH gt12)
• Reactive (oxidizers, water reactive)
• Toxic

3
Hazardous Waste Defined

• Used or spent chemicals from a process or
  experiment
• Old or unwanted chemicals
• Materials from a spill clean-up

4
Containers

• Appropriate size type
• Good condition NON-LEAKING
• Closed with non leaking tight fitting lids that
  are not cracked, broken or chemically damaged
• Compatible with contained waste

5
Labeling

• Containers must be labeled prior to addition of
  waste
• The label must be filled out completely
• The label must include constituent and
  concentration by
• Improperly labeled waste will not be removed
• Original manufacturer labels are acceptable if no
  other material has been added

6
OSU EHS Hazardous Waste Label

• Available from EHS 7-4552 on EHS web site

7
Point of Generation

• Waste must be stored at or near the point of
  generation
• Filled containers must stay in original room
• When waste is not being added to the container,
  the container must be closed
• Evaporation of waste not permitted

8
Drain Disposal

• Drain disposal of hazardous waste is strictly
  forbidden
• Corvallis drain disposal regulations
• NO liquids gt 150o F
• NO flam. liquids with explosive potential
• NO fat, oil, grease gt 100 ppm
• pH values 6 to 9

9
Where Does the Waste Go?

• Landfill
• Incinerator
• Chemical Reactor
• Nuclear Reactor
• Fuel
• Retort

10
Special Waste

• Radioactive (Radiation Safety 7-2227)
• Biological (Bio Safety 7-2276)
• E Sharps
• ? Medical waste
• ? Infectious substances
• ? Stocks and Solutions
• Aerosol Cans
• Batteries
• Broken Glass

11
Waste Categories

• Lab pack
• Non-halogenated
• Halogen solvent
• Aqueous liquid
• Organic solid
• Inorganic solid
• Acid inorganic
• Organic corrosive

• Inorganic alkali
• Hg debris
• Hg compounds
• Batteries (nicad, alkaline, lithium)
• High hazard
• Oil paint
• Unknown

12
How Much Does It Cost OSU (per pound)?

• 0.56 Landfill
• 0.37 0.46 Fuel
• 0.87 1.05 Chemical Reactor
• 2.16 Incinerator
• 3.38 Retort

13
How Much does it cost YOU?

• Full cost
• Partially subsidized
• Nothing

14
How Much does it cost YOU?

• Nothing

15
When Should you Get Rid of Waste

• Anytime
• When done generating that waste
• Would you trust this chemical for a critical
  experiment?