PREVIEW OF

HAZMAT TECHNICIANCONTROL TECHNIQUESPOWERPOINT TRAINING

PRESENTATION

INTRODUCTION

Based upon your hazard analysis you may need to intercede and control the

release

DO NOTHING ?

Can nature mitigate the release without any actions?

Winds can dissipate releaseFire can burn hazard into harmless gases

CONTAINER STABILITY

Will stresses or release cause container to move, fall, or roll overCan cribbing stabilize it?

HAVE THE RIGHT TOOLS

StaffingBack up teamsThe right resources Right size wrenches,

meters, handcarts

MINIMIZE LEAKS

Have easily accessedleaks mitigated

Reduce leaks to minimum

CONFINEMENT VSCONTAINMENT

ConfinementThose procedures taken to keep a

material in a defined or local areaContainment

Those procedures taken to keep a material in its container

Adsorption vs. Absorption

Adsorption is a process where the molecule/particle adheres only to the surface of the medium while absorption is a process

where the molecule/particle is taken internally and not on the surface

TECHNIQUES & EQUIPMENT

NeutralizationOverpackingPluggingPatchingAuxiliary closing devicesSealantsPre-engineered safeties

OVERPACKING

Process of putting a leaking container inside a sealable larger container

Normally an 85 gallondrum with sealable top to overpack a55 gallon drum

Smaller containersare also used

PLUGGING

Placing an object into openingThey can be commercially made, home

made or improvised on site

AUXILIARY CLOSING DEVICES

Normally placed over leaking pressure vessel valves or manwaysLeaks are normally from missing or defective gaskets

EQUIPMENT AQUISITION

Care must be taken to purchase appropriate equipment base upon hazards in response areaUse previous responses, “Firefighter Right to Know” & site inspections to base equipment list onShould be either disposable or easily decontaminated

CRACKSFatigue or impact can cause cracks

RUST

Causes thinning of tankwall creating small to large leaks

PNEULATIC PLUG

Are inserted into pipe end and air is applied expanding plug to stop flow

Comes in diametersstarting at 4 inchesand larger

CHLORINE CYLINDERS

Require special kits that can seal tanks or valves

PRESSURE CYLINDERS

They are difficult to control due to pressure in tank

Often the best straightly is to let the tank bleed it

self off Pressures can be up to 10,000 PSI before leak

INSPECTION

Prior to interventions the tank must be inspected entirely for additional leaks or cracks After any movement tank should be

re-inspected for unknown cracks or leaks

MOVING TANK

To safer location for off loading or repairTank must not be leaking

MITIGATION

Before offensive mitigation can take place you must decide

Offensive tactics are necessaryAll needed resources are on siteOperations can safely be accomplished

SAFETY

Before any operation takes place safety measures must be in placeLarge containers may require ladders, safety

harnesses, or other climbing equipmentIdentify slip & fall hazardsContainer must be stable before mitigation takes place

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