NWPTRT056
Operate and control ozone processes


Application

This unit describes the skills required to monitor and operate ozone treatment systems and to report on process quality control.

This unit applies to those working as operational staff with specific responsibility for ensuring that ozone treatment systems comply with organisational requirements.

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, particularly those relating to hazardous substance handling and WHS.

Those undertaking this unit would work under supervision while performing routine tasks in a range of familiar contexts.

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


Elements and Performance Criteria

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. Plan and prepare for work

1.1 Determine work requirements as outlined in the standard operating procedure.

1.2 Select and check equipment and tools required to meet safety requirements of task and site.

1.3 Select, fit and use personal protective equipment.

2. Monitor system performance

2.1 Monitor ozone treatment processes.

2.2 Collect process samples and conduct standard tests.

2.3 Maintain and monitor relevant WHS requirements.

3. Prepare and apply ozone dosing

3.1 Generate and dose ozone.

3.2 Maintain information relating to ozone generation and dosing.

4. Complete and review reports

4.1 Collect and report process data.

4.2 Produce information relating to system maintenance and operation.

4.3 Report observations outside defined parameters for further action.

Evidence of Performance

Evidence required to demonstrate competence must satisfy all of the requirements of the elements and performance criteria. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

applying policies, regulatory standards and standard operating procedures

performing work-related ozone calculations

identifying control system faults and operational problems

identifying hazards

using literacy skills regarding verbal and written communication in the workplace

interpreting safety data sheets (SDS)

scheduling work

selecting and using appropriate tools and equipment, including personal protective equipment

monitoring ozone treatment processes

collecting process samples and performing standard tests, including at least one of:

ozone residual sampling

ozone residuals

exhaust gas ozone concentration

pH

ozone residual level in water supply

preparing and applying ozone dosing safely


Evidence of Knowledge

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.

properties and chemistry of ozone

pH

microbiological water quality guidelines

ozone system layout

lockout procedures for mechanical and electrical installations

communication systems

hazardous substances handling

risk factors and potential hazards associated with ozonation

ozone dosing processes

operation, capacity and limitations of ozone generation equipment

effects of weather and conditions on operation of site or plant

pumping and valving systems

automatic feed rate control systems

MSDS

ADWG risk management principles

WHS requirements

ozone calculation


Assessment Conditions

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.

Some components of this unit require assessment in a workplace environment therefore the unit is not suitable for fully external or electronic based assessment.

Consideration must be given to holistic assessment for this unit. Refer to advice in the companion volumes.

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


Foundation Skills

The foundation skills demands of this unit have been mapped for alignment with the Australian Core Skills Framework (ACSF). The following tables outline the performance levels indicated for successful attainment of the unit.

Further information on ACSF and the foundation skills underpinning this unit can be found in the Foundation Skills Guide on the GSA website.


Competency Field

Treatment