NWPTRT058 — Assess and improve desalination processes
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What an assessment for NWPTRT058 must cover
38 assessable components: 4 elements (11 performance criteria), 12 performance evidence and 15 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.
Elements & performance criteria
1 Evaluate desalination processes
- 1.1Review existing process performance and maintenance data against relevant organisational and legislative requirements
- 1.2Identify the impact of feed water quality on desalination treatment processes
- 1.3Identify any additional sampling and testing required for valid evaluation of current process performance
2 Investigate desalination process plant configuration
- 2.1Review existing fault reports and other relevant plant asset information
- 2.2Investigate the operational status of plant components with reference to manufacturer and plant designer specifications
- 2.3Contribute to plant configuration investigations to identify potential operational improvements
- 2.4Identify hazards, assess risks and control measures according to workplace procedures
3 Investigate options for desalination process optimisation
- 3.1Review current desalination processes with reference to organisational procedures protocol to identify potential deficiencies
- 3.2Identify and investigate new or additional chemicals and related dosing options
4 Develop and record a plan for process optimisation
- 4.1Plan a trial to test the performance of the determined optimisation options
- 4.2Compile a report making recommendations on optimisation options
Performance evidence
- analysing and evaluating reports and reference materials
- analysing problems and recommending appropriate remedial solutions
- assessing effectiveness of treatment chemicals by conducting a range of tests
- assessing fault reports and investigating the current operational status of plant components
- conducting investigations and reporting on operational and control system problems
- identifying and responding to risks and hazards
- identifying data and planning additional data collection through appropriate sampling and testing
- identifying opportunities for improved water treatment
- interpreting a range of complex and technical documents including at least one of the following: • codes of practice • national and industry standards • organisational policies • regulatory, legislative, licensing and organisational requirements • specifications
- operating a desalination process using at least one of the following: • electrodialysis reversal (EDR) • reverse osmosis (RO) • thermal desalination
- planning trials to test the performance of the determined optimisation options and compiling recommendation reports
- reviewing existing process performance with reference to historical or seasonal data, differences in raw water quality and plant configuration
Knowledge evidence
- antiscaling
- impact of electrical flow or current and how reversal effects the process
- Langelier saturation index
- log removal value concept
- permeate flux
- principles of desalination treatment processes
- problems for desalination processes caused by chemical and biological contamination
- relevant legislation, industry standards and workplace policies and procedures relating directly to the control and operation of desalination processes
- risk and hazard management principles
- salt passage
- saturation indices used for prediction of scaling formation
- silt and/or fouling indices used for prediction of solids or colloidal fouling
- types and application of chemicals and chemical cleaning methods for desalination processes
- types and characteristics of chemical and microbial contaminants treated through desalination processes
- workplace reporting requirements
Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.
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Real, unedited Auditori output (RIIHAN201E shown), branded for a sample RTO:
Questions about assessing NWPTRT058
What does an assessment tool for NWPTRT058 need to cover?
To satisfy the Principles of Assessment and Rules of Evidence, an assessment for NWPTRT058 needs to address all 38 unit components: 4 elements with 11 performance criteria, 12 performance evidence requirements, 15 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.
How does Auditori generate an assessment tool for NWPTRT058?
Auditori pulls the current release of NWPTRT058 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.
Is the first assessment tool really free?
Yes. Every new account includes one free credit — enough to generate the complete assessment tool for NWPTRT058 — with no card and no subscription required. After that it's pay-as-you-go per unit.
Can I check my existing NWPTRT058 assessment instead of generating a new one?
Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of NWPTRT058, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.
Related units
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- NWPTRT006 — Monitor and operate fluoride addition processes
- NWPTRT007 — Monitor and operate liquefied chlorine gas disinfection processes
- NWPTRT008 — Operate and control iron and manganese removal processes
- NWPTRT009 — Operate and control coagulation and flocculation processes
- NWPTRT010 — Operate and control sedimentation and clarification processes
- NWPTRT016 — Operate and control dissolved air flotation processes
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- NWPTRT018 — Operate and control ion exchange and softening processes
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