TRP Chapter 5.3 1 Chapter 5.3 Safe operations and safety management.
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Transcript of TRP Chapter 5.3 1 Chapter 5.3 Safe operations and safety management.
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TRP Chapter 5.3 1
Chapter 5.3Safe operations and safety
management
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TRP Chapter 5.3 2
Risks of hazardous waste management
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TRP Chapter 5.3 3
Site safety recommendations
• Plant layout• Operating procedures and systems of work• Plant safety and training officer • Training of operators• Housekeeping and maintenance• Operator hygiene• Emergency procedures• Safety analysis • Worker protection
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TRP Chapter 5.3 4
Plant layout
• Need careful design of:
• Process flow lines• Storage areas• Work spaces
• Create restricted areas
Source: Safe hazardous waste management systems ISWA 2002
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TRP Chapter 5.3 5
Operating procedures and systems of work
Standardisation of operating procedures:
•Working procedures for every function
•Tested and regularly reviewed/revised
•Set out in manual
•Employees informed
•Use of procedures required and monitored
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TRP Chapter 5.3 6
Plant safety and training officer
Medium and large companies should appoint an officer responsible for:
• conducting regular safety audits• identifying deficiencies in operating
procedures • ensuring that operators are properly trained
and equipped
Small businesses may not be able to justify the appointment of a full time officer, but could designate someone on a part time basis
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TRP Chapter 5.3 7
Training of operators
Experienced personnel should undertake training
Training should cover:•Working procedures•Safety precautions•Emergency procedures•Any changes in waste or procedures
Training should be: •Supported by written material for later reference
•Regularly updated •An ongoing process, not a single event
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TRP Chapter 5.3 8
Housekeeping and maintenance
Need schedules for regular:•cleaning •maintenance
Good housekeeping involves simple but important procedures to keep areas clean and tidy
Maintenance programme helps prevent
unexpected failures
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TRP Chapter 5.3 9
Operator hygiene
Operators must observe basic rules of hygiene:
•remove dirty overalls/work clothes before leaving site
•use washing/shower facilities before leaving the site
•avoid eating in work areas•keep hands away from the face at all times, minimising risk of eye contact or ingestion of chemicals
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TRP Chapter 5.3 10
Emergency procedures
To ensure prompt and appropriate response, site-specific emergency procedures should:
•be in place•be regularly practised•be displayed at relevant points•include plans for site evacuation
Emergency equipment should:•include fire fighting & first aid materials•be in good condition •be frequently checked
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TRP Chapter 5.3 11
Safety analysis
To identify possible malfunctions and their consequences
• Problem characterisation• Identification of potential hazards and failure modes• Quantification of probability of occurrences• Quantification of possible consequences• Assessment of the range of risks• Recommendations for hazard mitigation, improved
safety and emergency response
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TRP Chapter 5.3 12
Safety goals
• Individual risk for nearest neighbours
• Collective risk for community
• Occupational risk for employees
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TRP Chapter 5.3 13
Identification of failure cases
• The check list method
• The hazard and operability study
• The fault-tree analysis
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TRP Chapter 5.3 14
Safety procedures for personnel
Individuals at most risk: hazardous waste handlers
•Risks greater if workers are careless or untrained, or working conditions poor
Safety procedures needed for all aspects
Information needed for all personnel on:
• risks involved with different types of waste
• routes of exposure
• methods of avoidance
• emergency measures
•consequences of not following safety procedures
•their own responsibilities
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TRP Chapter 5.3 15
Training
Experienced personnel should give training
Training should cover:• Working procedures• Safety precautions• Emergency procedures• Any changes in waste or procedures
Training should be: • Supported by written material for later reference• Regularly updated • An ongoing process, not a single event
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TRP Chapter 5.3 16
Worker accidents
Nature of injury caused by accidents in hazardous waste collection and transport (n=38)Source:PÄIVI RAHKONEN, Work safety in waste collection and transport of hazardous wastes, 1992
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TRP Chapter 5.3 17
Accident prevention - general guidelines
• Smoking should be prohibited • Hazardous waste should be identified as soon as
possible so that it can be classified correctly• An emergency shower and telephone should be
provided• Containers should be kept tightly closed • Packaging material should have low moisture
absorption• Heavy articles should be stored on a firm base• Employees should not work alone• Different kinds of hazardous wastes should be stored
in different containers• A refrigerator or cold room should be provided in
summer to prevent wastes overheating
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TRP Chapter 5.3 18
Transport accident prevention - guidelines
•Brake must be set and the engine turned off
•Appropriate hazard and warning labels should be used
•No smoking, drugs or alcohol
•All tailgates, closures and the cargo must be secured
•Provide telephone at the collection & delivery points, in truck
•Drivers should not exceed a set number of hours per day
•Protective clothing & equipment should be used if necessary
•Trucks should be provided with first-aid equipment and an
appropriate fire extinguisher for the load, and training should be
provided for its use
•Earthing of equipment helps avoid explosions resulting from
static electricity
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TRP Chapter 5.3 19
Medical surveillance
• Personnel working with hazardous waste should be given regular medical examinations to check:– Overall fitness and strength– Heart condition– Pulmonary function
They should be provided with:• Immunisation programme• Good nutrition• First aid equipment & antidotes to toxic substances
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TRP Chapter 5.3 20
Environmental monitoring
• Air monitoring
• Surface and groundwater quality (WHO Guidelines for Drinking Water – 1993)
• Soil sampling
Plus: • good housekeeping• prompt clean up of spills
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TRP Chapter 5.3 21
Worker protection
Basic requirement:
•gloves
•overalls
•hard hats
•safe footwear
Additional equipment:
•safety glasses
•long sleeves
•long trousers
•chemical gloves
•chemical resistant overalls
•face protection
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TRP Chapter 5.3 22
Respiratory protection
A primary health and safety consideration
Two hazard groups:• Oxygen deficiency• Air contamination (by particulates, vapours, gases or
a combination)
Two basic types of respirators:• Air purifying (APR)• Atmosphere supplying (ASR)
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TRP Chapter 5.3 23
Chapter 5.3 Summary
Hazardous waste management has inherent risks
Safe operations and safety management require systems to address:
•Plant layout•Operating procedures and systems of work, including housekeeping and maintenance
•Training of operators eg in operator hygiene, use of protective clothing
•Emergency procedures•Accident prevention •Environmental monitoring