WASTE MANAGEMENT

Chemical Handling & Storage- General Handling procedures:

  • Obtain and review Safety Data Sheets (SDS) before ordering and using chemicals. Ensure that the material can be safely procured, stored, used, and disposed of.
  • Know the hazards associated with materials you are using.
  • Be prepared for emergencies and know what action to take. Assure that necessary supplies and equipment are available for handling small spills.
  • Know the location of safety equipment such as emergency shower, eyewash, fire extinguisher, fire alarm, and emergency telephone numbers.
  • Purchase minimum amounts of hazardous materials necessary to accomplish work and dispense only amounts necessary for immediate use.
  • Use hazardous materials only as directed and for their intended purpose.
  • Never smell or taste a hazardous chemical.
  • Avoid direct contact with any chemical, use protective equipment to avoid exposure, and review SDS for specific recommendations for each chemical used.
  • Ensure emergency contact information is posted at the lab entrance.
  • Ensure all containers are labeled.
  • Label all secondary containers with chemical name and hazard information.
  • Assure ventilation is adequate for the materials you are using. Where possible, handle all materials in a chemical fume hood.
  • Store chemicals in compatible categories.
  • Only permit reactions to run unattended when the reaction is well understood, provisions are in place to contain toxic substances in the event of a utility failure, and emergency contact information is posted on the door.
  • Dispose of waste properly according to EHS’s “Waste Management Guidelines and Procedures Manual.”
  • When transporting chemicals outside the lab, use precautions to avoid dropping or spilling chemicals. Use bottle carriers for glass containers and use carts with edges to prevent containers from falling off the cart and breaking.
Chem_Storage

Safe Chemical Handling Video Illustration

Transportation of Hazardous Chemicals

The transportation of hazardous chemicals in laboratory buildings provides the greatest potential for chemical exposure to the building occupants. Spills occurring outside storerooms and laboratories may lead to hazardous concentrations of vapors and gases being distributed throughout the building.  Always use a carrier when transporting reagent containers by hand.

The following guidelines should be observed when transporting chemicals outside the laboratory:

Elevators:
  1. Freight elevators shall be used where available to transport hazardous materials. Under no circumstances are passenger elevators to be used for the transportation of hazardous materials if freight elevators are available.Elevators

 

Flammable Liquids:

  1. Flammable liquids shall be transported in rugged pressure-resistant safety cans.
  2. Original containers of flammable liquids shall be placed in an outside container or acid-carrying bucket.
  3. No more than 5 gallons of flammable liquids in glass containers shall be transported on the freight elevator unless the original shipping carton (box) is used and the materials are on an appropriate cart.

Safety Cans

 Corrosives or Oxidizing Materials:

  1. Original glass shipping containers holding liquid acids and bases must be placed in an outside container or acid-carrying bucket.
  2. Incompatible chemicals, for example chromic acid (oxidizing acid) and ethyl acetate (flammable liquid), should not be transported on the same cart unless they are in original shipping cartons and physically separated.

Bags

 

Water Reactive Chemicals:

  1. Wherever possible, use the original outside shipping containers (packaging) when transporting water reactive chemicals.
  2. Once opened, water reactive chemicals must be placed in a rigid outside container or acid carrying bucket for transporting.
Pyrophoric (spontaneously igniting) Substances:
  1. Whenever possible, the original outside shipping container (packaging) must be used to transport pyrophoric substances.
  2. Once opened, pyrophoric substances must be placed in a rigid outside container or acid carrying bucket for transporting.
Acutely Toxic Compounds (See list Appendix B):
  1. Whenever possible, the original outside shipping container (packaging) must be used to transport acutely toxic compounds.
  2. Once opened, acutely toxic compounds must be placed in a rigid outside container or acid carrying bucket for transporting. container


 

General:
  1. Chemicals, substances and research materials must be clearly labeled with the correct chemical name when transported. Hand-written labels are acceptable; chemical formulas and structural formulas are not acceptable (except for small quantities of compounds synthesized in the laboratory).    Chemical Naming

 2.Carts used for chemical transport must have sides, on each shelf, that are high enough to retain the containers. Cart wheels must be large enough to prevent the carts from being caught in floor cracks, and door and elevator thresholds.

cart     

 

 

 

 3.Personnel transporting chemicals must wear one disposable glove and safety glasses. Touching door handles, elevator buttons, and other surfaces outside of the lab must be done only with an ungloved hand.

Waste Management

Department of Risk management is responsible for

  • The collection, storage and transportation of all hazardous chemical waste for disposal.
  • Ensuring that all chemical waste is properly packaged, labeled, logged before disposal
  • Maintaining permanent records of movement of all hazardous chemical waste on the campus.

Hazardous waste generators are responsible for

  • Following the disposal procedures
  • Assuring that their research assistants are trained in proper disposal procedures
  • Properly identifying the hazardous chemical waste
  • Developing emergency response procedures for chemical spills.
  • Disposal of Wastes
  • Dry PPE waste without any visible liquids of high toxicity can go to regular landfill.
  • Syringes and needles should be disposed of into SHARPS containers
  • Broken glass ware should disposed of into separate containers which are specifically meant to them.
  • Do not dispose Non-hazardous wastes like
    • Any fat, oil, grease, ash, sand, mud, metal, glass, tar, solid or viscous liquid substance.
    • Any liquid or vapor having flash point temperature higher than 650°C
    • Any waste water outside the range of pH 6-11
    • Any suspended or undissolved solids
    • Any water with unusual odor or color

 Waste Mgmt

 

Hazardous Wastes

  • Label and store the wastes separately in appropriate containers
  • Do not store

               Aqueous hazardous waste in  Metal drums

               Bases or wastes with pH>8 in Glass containers

               Organic hazardous waste in Containers having polymeric compounds

               Liquids in Wide mouthed bottles       

  • Always have 2 inch space - for containers and 4 inch head space – for drums
  • Collect the waste into containers on which the original labels are defaced or preferably completely removed.
  • Label them properly as “unwanted material” or “acid waste” or “organic waste” based on the nature of the material.
  • As per the EPA regulations label all the chemicals with full names, amounts and completion date.

You can email your building, room# and type of waste for collection to the hazard waste co-ordinator. 

  • Marsha I Williams- 409.880.8276

   Email: miwilliams@lamar.edu 

 

More references:

 

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