ELEMENT

PERFORMANCE CRITERIA

1. Plan and prepare for elution process

1.1. Access, interpret and apply compliance documentation relevant to the work activity

1.2. Receive, interpret and clarify shift changeover details

1.3. Communicate with other personnel

1.4. Select personal protective equipment appropriate for work activities

1.5. Select appropriate type of auxiliary equipment for work activities

1.6. Perform equipment pre-start checks

1.7. Identify, address and report potential risks and hazards

1.8. Identify, address and report environmental issues

1.9. Adhere to emergency procedures

1.10. Use dust suppression and extraction methods

1.11. Ensure area is well ventilated

2. Start-up equipment in sequence

2.1. Complete start-up checks according to plant configurations and system requirements

2.2. Confirm plant is operational

2.3. Prepare carbon regeneration kilns and heat exchanges according to site requirements

2.4. Prepare elution column for loading

2.5. Load elution column

2.6. Sample column for carbon content and measure level of carbon

2.7. Prepare circuit for start-up and starts circuit in sequence

3. Operate and monitor equipment

3.1. Read and interpret data from equipment indicators

3.2. Continuously inspect operations/plant and containment areas

3.3. Adjust equipment to operating parameters

3.4. Operate pumps and valves to mix reagents

3.5. Add reagents to operating parameters according to site procedures

3.6. Carry out operator level maintenance

3.7. Complete all required documentation

3.8. Pass on end of shift information to incoming shift

3.9. Sample pregnant and barren solution

3.10. Return barren solution according to site procedures

4. Conduct housekeeping activities

4.1. Clean plant

4.2. Identify, address and report hazards

5. Shutdown in sequence and/or isolate equipment

5.1. Shutdown or isolate equipment based on process and safety requirements

5.2. Perform post shutdown or isolation checks

Required skills

Specific skills are required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes the ability to carry out the following, as required to conduct elution processes:

apply legislative, organisation and site requirements and procedures for conducting elution processes

control circuits

fault finding

hazard identification and management

handle hazardous substances

interpret reports

apply lifting (manual, cranes and loads)

maintain records

report defects

employ safe work practices

use hand and power tools

Required knowledge

Specific knowledge is required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes knowledge of the following, as required to conduct elution processes:

elution process principles

circuit control systems

breakdown procedures

regeneration kiln operations

heat exchanger application

emergency procedures

environmental principles

equipment operating parameters

equipment safety requirements

hazardous substances procedures and consequences of spills

isolation procedures

metallurgical and technical data

operational procedures and checks

pumping system

sampling

elution safety requirements

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:

knowledge of the requirements, procedures and instructions for conducting elution processes

implementation of requirements, procedures and techniques for the safe, effective and efficient completion of elution processes

working with others to undertake and complete the elution processes that meets all of the required outcomes

consistent timely completion of elution processes that safely, effectively and efficiently meets the required outcomes

Context of and specific resources for assessment

This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.

Assessment of this competency requires typical resources normally used in a resources and infrastructure sector environment. Selection and use of resources for particular worksites may differ due to the site circumstances.

The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.

Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.

Aboriginal people and other people from a non English speaking background may have second language issues.

Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or assessment support when required.

Method of assessment

This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:

written and/or oral assessment of the candidate's required knowledge

observed, documented and/or first hand testimonial evidence of the candidate's:

implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes

consistent achievement of required outcomes

first hand testimonial evidence of the candidate's:

working with others to undertake and complete the elution processes

Guidance information for assessment

Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Relevant compliance documentation may include:

legislative, organisational and site requirements and procedures

manufacturer's guidelines and specifications

Australian standards

Employment and workplace relations legislation

Equal Employment Opportunity and Disability Discrimination legislation

Legislation may include Acts and regulations dealing with:

mining safety and health

mine inspection

OHS

explosives

Auxiliary equipment may be anything that is portable and mobile that is not part of the fixed infrastructure, and may include:

compressors

distribution control systems (DCS)

gantry cranes and attachments and other mobile equipment

hand and power tools

hoses

Pre-start checks may include:

availability of equipment

detection of conditions that are unusual

personnel availability

job requirements

walk through plant

Environmental issues may include:

drainage

emissions

hazardous chemicals

noise

recycling

run-off/spills

waste management and disposal

water quality

Start-up procedures may include:

cameras and monitors

distribution control system

pumping system

pipes

valves

vessels

visual and audio warning devices and lights

suppression systems

Plant may include:

elution columns

pumps

valves

reagent vessels

carbon regeneration kilns

heat exchanges

Indicator readings may include:

flow/current

density

levels

restrictions

pressure

speed (e.g. pumps)

unusual noises

vibrations

power

temperature

Equipment and plant cleaning methods may include:

hosing with water

high pressure cleaning

Post-shutdown checks are like pre-start checks.

Monitoring the drying process may include the checking of:

blockages and spillages

carbon content

gold content

on stream analysis (OSA)

overloads

power draw

temperature

wear and tear

emission

laboratory results

The methods used to optimise the plant may include:

quantity of reagents

flow

temperature

pressure

current flow

Materials may include:

slurry

reagents