Assessor Resource

NWPTRT044
Operate and control desalination processes

Assessment tool

Version 1.0
Issue Date: March 2024


This unit describes the skills required to monitor, operate and control a desalination plant, and to measure and report on system performance and process quality control. The ability to identify faults and determine and apply technical adjustments is essential to performance.

This unit applies to those working as operational staff with a specific responsibility for desalination processes in treatment plants.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.

Those undertaking this unit would work under supervision, while performing routine tasks, within a familiar context.

No licensing, legislative or certification requirements apply to unit at the time of publication.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Monitor desalination processes

1.1 Monitor test results and processes to maintain the parameters of operation.

1.2 Identify and report process faults and the operational condition of plant.

2. Operate and control desalination processes

2.1 Carry out routine plant inspections.

2.2 Conduct and analyse process tests and compare performance to plant operational requirements.

2.3 Make integrated process adjustments to optimise system performance.

2.4 Select, fit and use required safety equipment, including personal protective equipment.

3. Complete documentation

3.1 Collect, interpret and record process data.

3.2 Report observations outside defined parameters for further action.

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. The candidate must be assessed in at least one of the desalination processes listed in the Range of conditions. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

determining chemical dosing requirements

operating control equipment

solving operational problems

completing reports and logs

using safety and personal protective equipment

operating computerised equipment

performing system calculations

monitoring test results and processes

identifying and reporting faults

conducting routine plant inspections

taking samples and performing basic tests

making basic process adjustments according to instructions including the pre-treatment processes:

chemical cleaning

pre-treatment optimisation

flow control

waste disposal

collecting data and completing required documentation

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

system layout

system processes

lockout procedures for mechanical and electrical installations

communication systems

pre-treatment processes

hazardous materials handling

interpretation of material safety data sheets

principles that form the basis of reverse osmosis and nanofiltration processes

risk factors and potential hazards

equipment operation, capacity and limitations

pipes and fittings

pumping and valving systems

mechanical and electrical control systems

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions section.

1. Monitor desalination processes

1.1 Monitor test results and processes to maintain the parameters of operation.

1.2 Identify and report process faults and the operational condition of plant.

2. Operate and control desalination processes

2.1 Carry out routine plant inspections.

2.2 Conduct and analyse process tests and compare performance to plant operational requirements.

2.3 Make integrated process adjustments to optimise system performance.

2.4 Select, fit and use required safety equipment, including personal protective equipment.

3. Complete documentation

3.1 Collect, interpret and record process data.

3.2 Report observations outside defined parameters for further action.

Desalination processes include:

reverse osmosis

nanofiltration (NF)

electrodialysis reversal (EDR)

thermal desalination

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. The candidate must be assessed in at least one of the desalination processes listed in the Range of conditions. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

determining chemical dosing requirements

operating control equipment

solving operational problems

completing reports and logs

using safety and personal protective equipment

operating computerised equipment

performing system calculations

monitoring test results and processes

identifying and reporting faults

conducting routine plant inspections

taking samples and performing basic tests

making basic process adjustments according to instructions including the pre-treatment processes:

chemical cleaning

pre-treatment optimisation

flow control

waste disposal

collecting data and completing required documentation

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the depth of knowledge demonstrated must be appropriate to the job context of the candidate.

system layout

system processes

lockout procedures for mechanical and electrical installations

communication systems

pre-treatment processes

hazardous materials handling

interpretation of material safety data sheets

principles that form the basis of reverse osmosis and nanofiltration processes

risk factors and potential hazards

equipment operation, capacity and limitations

pipes and fittings

pumping and valving systems

mechanical and electrical control systems

Competency should be assessed in an actual workplace or in a simulated environment, with access to equipment and infrastructure appropriate to the outcome. Competency should be demonstrated over time to ensure the candidate is assessed across a variety of situations.

Assessors must satisfy the NVR/AQTF mandatory competency requirements for assessors.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Monitor test results and processes to maintain the parameters of operation. 
Identify and report process faults and the operational condition of plant. 
Carry out routine plant inspections. 
Conduct and analyse process tests and compare performance to plant operational requirements. 
Make integrated process adjustments to optimise system performance. 
Select, fit and use required safety equipment, including personal protective equipment. 
Collect, interpret and record process data. 
Report observations outside defined parameters for further action. 
Monitor test results and processes to maintain the parameters of operation. 
Identify and report process faults and the operational condition of plant. 
Carry out routine plant inspections. 
Conduct and analyse process tests and compare performance to plant operational requirements. 
Make integrated process adjustments to optimise system performance. 
Select, fit and use required safety equipment, including personal protective equipment. 
Collect, interpret and record process data. 
Report observations outside defined parameters for further action. 

Forms

Assessment Cover Sheet

NWPTRT044 - Operate and control desalination processes
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

NWPTRT044 - Operate and control desalination processes

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: