Technical decontamination involves using physical and chemical processes like washing, vacuuming, and neutralization to more thoroughly decontaminate people and equipment than gross decontamination, establishing a decontamination corridor in the warm zone to safely remove protective equipment before medical evaluation and documentation.
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A presentation from the 2012 Michigan Safety Conference and the 2012 Iowa- Illinois Safety Council Professional Development Conference. It contains an explanation of the difference between HAZWOPER and HazMat Transportation, a description of the terms: hazardous material, HazMat Employer, and HazMat Employee; and the training requirements for HazMat Employees.
This training is about the rescue procedure and preparation before starting work inside the confined space. For power point slides please email me on dawoodibrar@hotmail.com
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A presentation from the 2012 Michigan Safety Conference and the 2012 Iowa- Illinois Safety Council Professional Development Conference. It contains an explanation of the difference between HAZWOPER and HazMat Transportation, a description of the terms: hazardous material, HazMat Employer, and HazMat Employee; and the training requirements for HazMat Employees.
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The presentation covers the requirements and details regarding the hazwoper 40 hour OSHA training.
http://www.oshacampus.com/hazwoper-training/40-hours
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NIDM (National Institute Of Digital Marketing) Bangalore Is One Of The Leading & best Digital Marketing Institute In Bangalore, India And We Have Brand Value For The Quality Of Education Which We Provide.
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2. 8
Objectives (1 of 5)
• Plan a response by selecting a technical
decontamination process that will
minimize the hazard
• Identify and describe the limitations and
advantages of each of the technical
decontamination methods
3. 8
Objectives (2 of 5)
• Describe the technical decontamination
process
• Identify the supplies and equipment
needed for technical decontamination
4. 8
Objectives (3 of 5)
• Identify precautionary measures,
equipment, and procedures for handling
anything or anyone brought to the
decontamination corridor
• Identify role of operations level responder
assigned to technical decontamination
5. 8
Objectives (4 of 5)
• Identify procedures for determining
whether the items have been fully
decontaminated
• Identify the importance, steps, and
requirements of maintaining records
6. 8
Objectives (5 of 5)
• Identify precautionary measures,
equipment, and procedures for processing
evidence during technical
decontamination
7. 8
Decontamination (1 of 2)
• Physical or chemical process
• Reduces and prevents spread of
contaminants
8. 8
Decontamination (2 of 2)
• Spread of contaminants is by
– People
– Animals
– The environment
– Equipment
9. 8
Emergency Decontamination
• Used in potentially life-threatening
situations
• Mass decontamination is a way of
performing
10. 8
Gross Decontamination
• Takes place within controlled
decontamination corridor
• Consists of pre-wash before technical
decontamination
11. 8
Technical Decontamination
• More thorough process than gross
decontamination
• Often involves:
– Cleaning solutions
– Scrub brushes
12. 8
Special Decontamination Situations
• It may be necessary to decontaminate:
– Search canines
– Criminal suspects
– Firearms
– Specialized equipment
– Pieces of evidence
13. 8
Technical Decontamination Details
(1 of 2)
• More thorough than gross
decontamination (its predecessor step)
• Decontamination team
– May use water or special cleaning solution
– Dry decontamination removes and disposes
of PPE
14. 8
Technical Decontamination Details
(2 of 2)
Technical decontamination is a more thorough cleaning process
that often involves the use of brushes and chemical-specific
cleaning solutions.
17. 8
Technical Decontamination
Methods (3 of 3)
• Isolation and disposal
18. 8
Absorption (1 of 4)
• Spongy material
– Natural soil
– Sawdust
– Synthetic loose absorbent
• Mixes with liquid hazardous material
19. 8
Absorption (2 of 4)
Spongy materials are used to absorb liquid hazardous materials.
20. 8
Absorption (3 of 4)
• Effective only on flat surfaces
• Absorbent materials must be disposed of
after use
• Limited application to decontaminating
personnel
– Shuffle pit to clean boots (next slide)
21. 8
Absorption (4 of 4)
Absorption can be used for decontaminating equipment and
property.
22. 8
Adsorption (1 of 2)
• Contaminant adheres to surface of added
material
– Sand
– Activated carbon
• Does not combine with it as in absorption
23. 8
Adsorption (2 of 2)
Sand can be used as an adsorbent.
24. 8
Vacuuming
• Removal of dusts, particles, some liquids
• Sucks them up into container
• Filtering system prevents reentry into
atmosphere
25. 8
Washing
• Effective, yet simple
• Scrub with brush or sponge, and rinse
• Removes solvents from:
– PPE
– Tools
– Equipment
26. 8
Chemical Degradation
• Breaks down chemical substance
• Natural or artificial process
27. 8
Dilution
• Generally uses plain water
• Fast and economical
• Preferred for
– Gross decontamination
– Technical decontamination
– Mass decontamination
28. 8
Disinfection
• Destroys disease-carrying
microorganisms
• Will not destroy spores (like anthrax)
• Requires expert advice
29. 8
Evaporation
• Natural form of chemical degradation
• Lets substance evaporate on its own
• No intervention by responders
• Must be well-thought-out decision
30. 8
Neutralization
• Used to minimize corrosivity of acid or
base
– Weak base to neutralize acid
– Weak acid to neutralize base
• Never used for personnel decontamination
31. 8
Solidification
• Causes hazardous liquid to become solid
• Usually cement-based products are used
• Controls spill, but still must be disposed of
32. 8
Sterilization
• Decontaminates biological agents
• Uses heat, chemical means, or radiation
• Kills all microorganisms, including spores
(anthrax)
• Not intended for use on responders
33. 8
Isolation and Disposal
• Remove contaminated items from site
• Transport to treatment, storage, or
disposal facility
• Use for items that cannot be properly
decontaminated
34. 8
Technical Decontamination
Process (1 of 5)
• Takes place within predesignated corridor
• Located within the warm zone
• Set up before entry team enters hot zone
35. 8
Technical Decontamination
Process (2 of 5)
A decontamination corridor should be established prior to
responders entering the hot zone.
36. 8
Technical Decontamination
Process (3 of 5)
• PPE worn by decontamination team
– No more than one level below what entry
team wears
– May be same level as entry team
37. 8
Technical Decontamination
Process (4 of 5)
• Decontamination corridor may include
– Collection devices to capture water used
– Portable bug sprayers to apply water
– Sponges and long-handled scrub brushes
– Buckets
– Tarps
38. 8
Technical Decontamination
Process (5 of 5)
• No single “right way” to do everything
• Try to keep experience unstressful for
victims
39. 8
Performing Technical
Decontamination (1 of 3)
• Leaving hot zone, place oversuits and
tools in drop area
• Proceed to gross decontamination
• Technical decontamination
– One to three wash-and-rinse stations
– Only one responder in a station at a time
40. 8
Performing Technical
Decontamination (2 of 3)
• After being scrubbed, chemical-protective
equipment can be removed
– SCBA face piece or respirator stays in place
• Remove outer gloves
• In different area
– Remove helmets, respiratory protection
41. 8
Performing Technical
Decontamination (3 of 3)
• Remove inner gloves
• Don clean clothes
– Disposable cotton coveralls
– Hospital gowns
– Hospital booties, slippers, flip-flops
• Proceed to medical evaluation
42. 8
Evaluating Effectiveness of
Technical Decontamination
• Done at end of decontamination line
• Based on nature of contaminant
• Examples:
– pH paper to detect corrosive residue
– Photo-ionization detector (PID)
– Radiation detector
43. 8
Reports and Documentation (1 of 2)
• Completed by person responsible for
decontamination corridor
• Part of overall documentation process for
incident
44. 8
Reports and Documentation (2 of 2)
• Include:
– Names of all persons processed
– Information on released substance
– Potential health effects
– Description of decontamination activities
– Breaches of PPE noted
45. 8
Summary (1 of 2)
• Match decontamination to properties of
released substance
• Gross decontamination takes place before
technical decontamination
• Establish and use decontamination
corridor in warm zone
46. 8
Summary (2 of 2)
• Remove PPE from person; don’t take
person out of PPE
• After decontamination, personnel should
proceed to medical station for evaluation
• Use detection techniques to evaluate
effectiveness
• Document the incident