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Elements and Performance Criteria

1. Plan and prepare for thickening and clarifying process
   • Access, interpret and apply thickening and clarifying process documentation and ensure the work activity is compliant
   • Obtain, read, interpret clarify and confirm work requirements
   • Coordinate and communicate with other personnel using approved communication methods
   • Select and wear personal protective equipment appropriate for work activities
   • Select appropriate type of auxiliary equipment for work activities
   • Perform equipment pre-start checks to ensure equipment is ready for operation
   • Identify and address potential risks, hazards and environmental issues, and implement control measures
   • Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
   • Use dust suppression and extraction methods
   • Ensure area is well ventilated
2. Start-up equipment in sequence
   • Carry out start-up procedures and complete start-up checks according to plant configurations and system requirements
   • Confirm plant is operational
3. Operate and monitor equipment
   • Read and interpret data from equipment indicators to determine torque, bed characteristics, flow characteristics and reagent dosage
   • Continuously inspect plant
   • Control discharge of underflow/overflow agents to agreed operating parameters
   • Direct underflow/overflow to alternate location according to work specifications
   • Monitor performance of thickener to meet agreed operating parameters
   • Complete all required written documentation concisely and on time
   • Pass on shift changeover details to oncoming shift
4. Shutdown in sequence and/or isolate equipment
   • Shutdown and/or isolate equipment based on process and safety requirements
   • Perform post-shutdown and/or isolation checks
   • Restore plant to service
5. Conduct housekeeping activities
   • Clear work area and dispose of or recycle materials
   • Clean and maintain condition of equipment, ensure suitability for use, and address/report issues
   • Process records
6. Plan and prepare for thickening and clarifying process
   • Access, interpret and apply thickening and clarifying process documentation and ensure the work activity is compliant
   • Obtain, read, interpret clarify and confirm work requirements
   • Coordinate and communicate with other personnel using approved communication methods
   • Select and wear personal protective equipment appropriate for work activities
   • Select appropriate type of auxiliary equipment for work activities
   • Perform equipment pre-start checks to ensure equipment is ready for operation
   • Identify and address potential risks, hazards and environmental issues, and implement control measures
   • Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
   • Use dust suppression and extraction methods
   • Ensure area is well ventilated
7. Start-up equipment in sequence
   • Carry out start-up procedures and complete start-up checks according to plant configurations and system requirements
   • Confirm plant is operational
8. Operate and monitor equipment
   • Read and interpret data from equipment indicators to determine torque, bed characteristics, flow characteristics and reagent dosage
   • Continuously inspect plant
   • Control discharge of underflow/overflow agents to agreed operating parameters
   • Direct underflow/overflow to alternate location according to work specifications
   • Monitor performance of thickener to meet agreed operating parameters
   • Complete all required written documentation concisely and on time
   • Pass on shift changeover details to oncoming shift
9. Shutdown in sequence and/or isolate equipment
   • Shutdown and/or isolate equipment based on process and safety requirements
   • Perform post-shutdown and/or isolation checks
   • Restore plant to service
10. Conduct housekeeping activities
    • Clear work area and dispose of or recycle materials
    • Clean and maintain condition of equipment, ensure suitability for use, and address/report issues
    • Process records

Performance Evidence

Evidence is required to be collected that demonstrates a candidate’s competency in this unit. Evidence must be relevant to the roles within this sector’s work operations and satisfy all of the requirements of the performance criteria of this unit and include evidence that the candidate:

locates and applies relevant documentation, policies and procedures

implements the requirements, procedures and techniques for the safe, effective and efficient completion of thickening and clarifying processes including:

conducting start up, shut down and/or isolation of equipment in sequence

operating and monitoring equipment

carrying out minor maintenance

conducting housekeeping activities

diagnosing faults, reporting defects and identifying repair requirements

applying lifting techniques (manual, automated)

works effectively with others to undertake and complete the thickening and clarifying processes in a way that meets all of the required outcomes including:

using a range of communications techniques and equipment to convey information to others

maintaining written and verbal reporting requirements and procedures

organising work activities to meet all task requirements

communicating clearly and concisely with others to receive and clarify work instructions

demonstrates completion of thickening and clarifying processes that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

identifyingand interpreting data from equipment indicators to determine torque, bed characteristics, flow characteristics and reagent dosage

continuously inspect plant

controlling discharge of underflow/overflow agents to agreed operating parameters

directing underflow/overflow to alternate location according to work specifications

monitoring performance of thickener to meet agreed operating parameters

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Knowledge Evidence

The candidate must demonstrate knowledge of conduct thickening and clarifying process through:

accessing, interpreting and applying organisation and site requirements and procedures for:

WHS, site safety and emergency requirements

environmental principles/procedures

equipment safety requirements

hazardous substance procedures and consequences of spills

operational procedures and checks

site procedures

isolation procedures

accurate record maintenance

contaminant identification and treatment

reading and interpreting reports

applying depressant principles

monitoring equipment limitations and operating parameters

interpreting metallurgical and technical data

identifying reagent types

identifying types of ores

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