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Managing Hazardous Chemical Waste


Managing Hazardous Chemical Waste What is Hazardous Waste EPA Definition: A material is a hazardous waste if due to its quantity, concentration, physical, chemical or ... – PowerPoint PPT presentation

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Title: Managing Hazardous Chemical Waste

Managing Hazardous Chemical Waste
What is Hazardous Waste
  • EPA Definition
  • A material is a hazardous waste if due to its
    quantity, concentration, physical, chemical or
    infectious characteristics it possesses a
    substantial present, or potential hazard to human
    health and the environment and has no known use.

What chemical waste must be managed?
  • Wastes that meet any of the following
  • Ignitable Flashpoint of 140F
  • Corrosive pH 2 or 12.5
  • Toxic LD-50 lt 5000 mg/kg
  • Reactive Reacts with anything

Hazardous waste must not be disposed of on site.
This includes Storm or Sewer Drains
The Trash Can
Hazardous waste must not be disposed of on site.
  • Especially

Through Waste Treatment!!
Satellite Accumulation
  • These are areas on Campus that generate small
    quantities of Hazardous Waste. This would include
  • Definition An Area that within 9 months
  • No more than 55 gallons of any hazardous waste
  • No more than 1 quart of any acutely or extremely
    hazardous waste stream.

Hazardous Waste Storage
This open waste containers needs a cap Poor waste
labeling here as well
A funnel is not a cap
Good Secondary Containment
Waste containers must be kept closed/capped
unless waste is being added or removed!
Hazardous Waste Storage
  • Containers must have closable/sealable lids or
  • Containers must be in good condition no holes,
    creases, cracks, rust.
  • They must be compatible to the waste stored in

Container open with no label
Hazardous Waste Storage
  • No Food or Beverage Containers is to ever to be

Waste Labeling
  • Label must have the words
  • Hazardous Waste
  • The name and address of the generator (SDSU)
  • The waste composition and physical state
  • Percent volume
  • Type of Hazard, ie. Flammable, Corrosive, Toxic
  • The accumulation start date (Month, Day, Year)

Incomplete waste label -Component label
smeared -No percent volume -No hazards checked
Waste Labeling
  • In other words, fill out the entire hazardous
    waste label!!

Empty Containers
  • gt 5 gallons in size which previously held
    hazardous materials must be managed.
  • lt 5 gallons dont need to be managed as hazardous
  • Empty containers that previously held Highly
    toxic materials must be handled as hazardous
    waste, ie. Sodium azide.

California Empty
  • Collect
  • Collect in a safe location
  • Invert to dry
  • Invert bottle over paper towels and shake to dry.
    (Do not air dry in fume hoods or by leaving the
    lid off)
  • Deface
  • Thoroughly deface the chemical label and mark as
  • Dispose
  • To dispose of the bottle call EHS

Waste Minimization
  • Key methods for waste minimization
  • Reduce
  • Purchase only what you need
  • Set up experiments so that less solvent or
    chemicals are needed
  • Reuse
  • Reuse empty containers to collect waste
  • Reuse a solvents if purity is not an issue
  • Recycle
  • Some waste oils can be recycled
  • Some metal cables and tubing can be recycled

Waste Container Removal
  • Call EHS Department at x46778 or x46098.
  • Never allow more than the maximum amounts to be
  • Satellite containers will be removed within seven
    working days.

Chemical Spills
  • Have a Spill Kit Ready
  • Set-up kit for your specific needs
  • Take inventory of the kit frequently
  • Quickly replace used of missing items

Spill Response
  • For Small Spills
  • Spills one gallon or less, clean the spill using
    the material in your spill kit.
  • Don your proper protective equipment (PPE).
  • Place contaminated material into your spill bag,
    seal, and attach a hazardous waste label.
  • Request a waste pick up of the material from

Spill Response
  • For Larger Spills
  • Contain the spill if possible, notify others in
    the area, and evacuate the area.
  • Notify your safety officer or EHS and the
    supervisor of the area.
  • If after business hours, notify Public Safety
    (X41991/911 for campus phones).
  • Do not call Off-campus emergency services. This
    can lead to longer response time!!

Finally, If All Else Fails
  • Consult the Hazardous Materials and Hazardous
    Waste Management Practices Booklet provided by

Frequently Asked Questions
  • Q How do I know if my waste product is actually
  • A Other than going though a long and costly
    waste determination process, give the material to
    EHS and let them make that determination.

Frequently Asked Questions
  • Q How do I know if a chemical is acutely
    hazardous waste?
  • A Acutely hazardous waste is given something
    called a P-code by the EPA and can be found at
    the following link
  • http// and click on
    The P-list and the U-list.
  • Or go to 40 CFR 261.33(e)

Frequently Asked Questions
  • Q Do I need the exact percentage on the
    hazardous waste label?
  • A No, they can be done in percent ranges like
    10-30. If there are too many components and
    there is not enough room to list them, then list
    the three major components or any acute hazardous
    waste, no matter the amount.

The End