Required skills include

Ability to

select fit and use personal protective clothing andor equipment

confirm supply of necessary materials and services

draw mud from the clarifier and assess mud quality

confirm equipment status and condition

set up filters and start up the process

assess requirement for mud conditioning and add materials as required

monitor the process and equipment operation to maintain the process within the required parameters This typically involves visual inspections and conducting tests to monitor characteristics such as

throughput

clarifier mud levels and quality

filter speed and cake thickness

filtrate clarity and pH

mud pol and moisture

equipment condition including filter vacuum and scraper and screen condition

wash water flow and temperature

take corrective action in response to outofspecification results

report andor record corrective action as required

record workplace information

demonstrate shift handover procedure

shut down equipment in response to an emergency situation

demonstrate an operational shut down procedure

prepare equipment for cleaningmaintenance

maintain work area to meet housekeeping standards

Required knowledge includes

Knowledge of

the purpose and basic principles of mud filtration

the purpose and role of materials added and their effect on filter operation

the effect of recycle streams on the mud filtration process

the effect of addition rates on the process

the effect of variation in process parameters

the effect of mud age on filter performance

the circuit flow of this process and relationship to related processes including mud output filter speed water addition and cake permeability

equipment purpose and basic operating principles of mud filtration equipment including vacuum pumps and condensers

services used

operating requirements and parameters

significance and method of monitoring control points within the process

common causes of variation and corrective action required

hazards and controls

the purpose and limitations of protective clothing and equipment

lock out and tag out procedures

requirements of both operational and long term shut down conditions to ensure the equipment is left in a safe state for the period of the shutdown and to minimise any delays in future start up

procedures and responsibility for reporting problems

environmental issues and controls

waste handling requirements and procedures

recording requirements and procedures

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

Evidence of ability to

conduct prestart checks on machinery used for filtration

start operate monitor and adjust process equipment to achieve required quality outcomes

take corrective action in response to typical faults and inconsistencies

complete workplace records as required

apply safe work practices and identify OHS hazards and controls

safely shut down equipment

apply food safety procedures

Context of and specific resources for assessment

Assessment must occur in a real or simulated workplace where the assessee has access to

personal protective clothing and equipment

work procedures including advice on safe work practices food safety quality and environmental requirements stock flow systems production schedules and batchrecipe instructions

information on equipment capacity and operating parameters

production schedulebatch instructions

filtration and related equipment and services

materials required for filtration

sampling schedules and test procedures and equipment as required

documentation and recording requirements and procedures

cleaning procedures materials and equipment as required

Method of assessment

This unit should be assessed together with core units and other units of competency relevant to the function or work role

Guidance information for assessment

To ensure consistency in ones performance competency should be demonstrated on more than one occasion over a period of time in order to cover a variety of circumstances cases and responsibilities and where possible over a number of assessment activities

Policies and procedures

Codes of practice

Workplace information

Mud filtration equipment

Equipment status

Equipment operation and monitoring

Services

Materials

Tests

Process monitoring

Control points

Teamwork

Information systems