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University of Toronto Scarborough January 31, 2012
Rob Provost, BScManager, Environmental Protection
Office of Environmental Health and Safety
Hazardous Waste Management
Office of Environmental Health and Safety
Objectives Minimize amounts of waste produced for
disposal To be able to SAFELY handle chemical,
radioactive and biological wastes produced as a result of research and teaching activities
Know who Environmental Protection Services (EPS) are
To know where to get the information you need on hazardous waste disposal
Office of Environmental Health and Safety
Waste MinimizationIn 2010 U of T produced :
143,000 Kg of Chemical waste, costing $ 311,000 to disposal of.22 m3 (~25,000 kg) of Radioactive waste, costing $ 175,000 to disposal of.95,000 Kg of Biological waste
How can you help? Purchasing practices Process modification [less chemicals used or
even eliminated] Not mixing with hazardous wastes Substitution - less hazardous alternatives ?
– E.g. mercury thermometers replaced with alcohol or electronic
Office of Environmental Health and Safety
Regulations
All Chemical Waste generation is controlled by the Ministry of the Environment (MOE)
The University has around 64 different generator registrations and each have different waste classes registered
Office of Environmental Health and Safety
Waste Generators
Each waste generators site has a Waste Generator number (eg. ON0179424)
Waste Classes (eg. 263A, 252L, 331I) Is specific to an address and site
description
Office of Environmental Health and Safety
What Waste is in your area?
Do you have Chemical waste produced in your area? What types?
Do you have Radiation waste produced in your area? What types?
Do you have Biological waste produced in your area? What types?
Do you know how your waste is handled?
Do you know who to contact for it?
Office of Environmental Health and Safety
U of TGeneral Requirements
Waste handling has the following requirements:
Packaging Labelling Storage Disposal
Office of Environmental Health and Safety
Typical Chemical Lab Hazards
Flammable Corrosive Toxic Reactives
At U of T the most common composition in the research labs is:
75% solvents (most common hazard encountered in labs)
10% acids
15% others such as toxins, bases, oxidiziers etc.
Office of Environmental Health and Safety
Chemical WastePackaging Never mix incompatible materials
Fire/Explosion Spill
Office of Environmental Health and Safety
Chemical WastePackaging
Sealed containers
Reuse old chemical containers
Office of Environmental Health and Safety
Chemical WastePackaging
Liquid Waste containers should only be fill to 75% of capacity to allow for expansion
Central Stores has green pails for Chemical Waste collection
Office of Environmental Health and Safety
Chemical WasteLabelling
EPS supplies these labels to the University
Dropped off the Central Stores Area
Office of Environmental Health and Safety
Chemical Waste Storage - Local ConditionsSome chemicals can become problems by
degrading and producing hazardous by-products with:
long storage (e.g. ethers degrade to from unstable organic peroxides)
exposure to water or air (e.g. sodium metal is a solid and stable but when immersed in water produces very flammable hydrogen gas)
Office of Environmental Health and Safety
Chemical WasteStorage Waste should be segregated
according to compatibility dispose of ageing containers
promptly DON’T use Bio bags or
Radiation bags to collect spill materials or leaking containers!!
Unknowns??
Office of Environmental Health and Safety
Chemical Waste Storage
FUMEHOODS
They are a safety device for the protection of laboratory personnel and not as storage areas
Defeats the purpose of having a fumehood
Office of Environmental Health and Safety
Chemical WasteDisposal
Lab staff responsible for removing chemical waste from lab area to :
Central Waste Holding Facility near Central Stores
In the case of a Lab Clean-out we may send a Tech to evaluate the job
Office of Environmental Health and Safety
Chemical WasteStorage
Central WasteCentral Waste
FacilityFacility
Office of Environmental Health and Safety
What happens to my Chemicals??
Segregated Labpacked TDGA Labels Loaded
Office of Environmental Health and Safety
Chemical WasteDisposal – Lab Pickups
Plan ahead!! Chemical Waste can go to the Central
Facility during receiving dock hours Call-in required for p/u from individual lab Contractor only on campus 1 day ever
couple months!
Office of Environmental Health and Safety
Chemical WasteDisposal – Lab CleanoutLab Closures (includes moving or renos) require
several weeks to properly deal with potentially hazardous materials. Scheduling Contractors and packaging of the hazardous materials also requires time.
1. Radioactive- Radiation Protection Services (416-978-2028) to arrange for proper decommissioning.
2. Biological- Biosafety Office (416-978-3981) so that the hazard potential may be assessed.
3. Chemical- Environmental Protection Services (416-978-7000) to arrange for the proper disposal of chemicals.
4. Furniture and Room Clean Out- Campus Services (416-287-7383) to initiate the removal of all remaining equipment and materials.
http://www.ehs.utoronto.ca/services/environmental/labdecom.htm
Office of Environmental Health and Safety
Chemical WasteDisposal – Lab Cleanout
Removal of Chemicals for a lab cleanout should be requested at least 3 week in advance!
Chemical Technician will visit the site to review what NEEDS to be removed What supplies are need to DO the pickup check that NO OTHER HAZARDS will affect
the pickup
Eg. Debris obstructing access to waste
Office of Environmental Health and Safety
Chemical Waste HandlingPersonal Protective Equipment The same precautions for handling
hazardous chemicals are applied to chemical wastes
eye protection lab coats gloves
Office of Environmental Health and Safety
Special Cases:Gas Cylinders
Treat as high energy sources Use smallest size required to do work Try to use local suppliers Use returnable cylinders
(check before buying) If supplier unable to accept
contact EHS officewww.ehs.utoronto.ca/services/environmental/gascyldispl.htm
Office of Environmental Health and Safety
Special CaseChemically-contaminated sharps
Chemicals in trace amounts are to be collected in U of T approved yellow sharps containers
chemicals drained from sharps prior
significant amount of chemical contamination, first deactivated in accordance with MSDS
Take to Central Waste Holding Facility to place in Bio-Totes
Office of Environmental Health and Safety
Radioactive Waste Management
At U of T, researchers working with any radioactive material, require an internal permit approved by UTRPA, BEFORE work begins.
Only approved permit holders are able to order radioactive materials and must be knowledgeable in University procedures for disposal.
Office of Environmental Health and Safety
Radioactive Waste ManagementDefinition
Includes:– surplus radioactive material– materials that has come into contact
with radioactive materials (e.g. gloves, flasks)
– used in decontamination (e.g., sponges)– contaminated equipment that cannot be
cleaned
Office of Environmental Health and Safety
Radiation Waste Minimization
Process modification - new less toxic absorbent material used
Not mixing non hazardous with radioactive wastes
developed a delay and decay program for short-lived isotopes
Office of Environmental Health and Safety
Radioactive Waste Management
Short-lived wastes (< 90 days half life) are allowed to decay in a secure University facility until no longer radioactive then disposed as non radioactive waste.
Long-lived wastes (> 90 day half life) are sent for disposal to permitted facilities.
Wastes moved to S-101 by a Lab Technicians.
Office of Environmental Health and Safety
Radioactive Waste ManagementPackaging
Liquid and solid waste MUST be segregated containers provided by EHS Liquid container should be filled to full capacity
to maximize absorbent’s potential Waste packaged in containers that improperly ID
other existing hazards Do not place non rad waste with rad waste
Office of Environmental Health and Safety
Radioactive Waste ManagementLabelling
Waste not properly labelled will not be
removed!!
Labels provided free by EHS
* Type of label depends on type of waste.
Office of Environmental Health and Safety
Radioactive Waste ManagementLabelling - Solid
Office of Environmental Health and Safety
Radioactive Waste ManagementLabelling - Liquid
Office of Environmental Health and Safety
Radioactive Waste ManagementLabelling - Liquid
Green label < 30 days(e.g. P-32, P-33, I-131, Cr-51)
Blue label 30> Half life< 90 days
(e.g. S-35, I-60)
SEGREGATED BY HALF-LIFE OF ISOTOPE
Yellow label > 90 days(e.g. C-14, H-3)
Office of Environmental Health and Safety
Radioactive Waste ManagementStorage
Each lab should establish one clearly identified location for waste, preferable close to work done with radioactive materials.
Waste should not be stored underneath any working area or near vicinity of people who do not work with radioactive materials.
Office of Environmental Health and Safety
Radioactive Waste ManagementSpecial Cases
Animal Carcasses Gas Chromatographs Gaseous Radioactive Waste Liquid Scintillation Counting Vials (separate
Glass and Plastic Vials) Liquid Scintillation Counters Fridges, freezers or other equipment Sealed sources Shipping materials
Office of Environmental Health and Safety
Radioactive Waste ManagementSpecial Cases
Needles and Blades
for trace amounts, disposed into special yellow plastic containers approved by U of T and CSA for the disposal of such waste
liquids drained into appropriate colour-coded jars and separately treated as radioactive waste
sharps with significant quantities of an isotope must be disposed as RADIOACTIVE WASTE into separate jars.
Take to S-101 for disposal
Office of Environmental Health and Safety
Biowaste Management
Service provided to Biosafety certified Containment Level 2 & 3 Labs
The Central Waste Holding Facility has Bio-Totes setup to collect this waste
Biowaste includes biohazardous material, contaminated solids, glass, blades, needles and tips
NOTE: Some other labs will need Needle drop offs without a Biosafety Certificate
Office of Environmental Health and Safety
Biowaste ManagementPackaging
Needles and Blades disposed into special yellow
plastic containers approved by U of T and CSA for the disposal of such waste
Fill only to indicated fill-line
Put lid on before offering for disposal
Place with in the Bio-Totes
Office of Environmental Health and Safety
Biowaste Management
Biosafety certified Containment Level 1 Labs :
Waste can go directly to Regular garbage
Should the lab staff wish to autoclave before disposal use the clear unlabelled autoclave bags
Needles and blades should be take to Central Waste Holding Facility to be placed in Bio-Totes
Office of Environmental Health and Safety
More Info
U of T - Office of Environmental Health and Safety Laboratory Hazardous Waste Management Manual
www.ehs.utoronto.ca/Resources/wmindex.htm
Material Safety Data Sheet (MSDS)-for specific chemical
(especially for incompatible mixtures)
Office of Environmental Health and Safety
Enviromental Protection Services Contact List
email: [email protected]
phone:
(416) 978-7000 for Information
(416) 946-3473 for Pickup and
Supplies
fax: (416) 971-1361