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Evidence Guide: NWPTRT054 - Operate and control chloramination processes

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

NWPTRT054 - Operate and control chloramination processes

What evidence can you provide to prove your understanding of each of the following citeria?

Monitor chloramination process performance

  1. Conduct and analyse process tests and compare performance to plant operational requirements.
  2. Collect samples and test chlorine residuals.
  3. Identify and report process faults and the operational condition of plant.
Conduct and analyse process tests and compare performance to plant operational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect samples and test chlorine residuals.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare and apply chloramination chemical dosing

  1. Use, handle and store chemicals.
  2. Prepare chemical dosing according to system specifications and organisational requirements.
  3. Maintain information related to chlorine and ammonia supply and usage.
Use, handle and store chemicals.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare chemical dosing according to system specifications and organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain information related to chlorine and ammonia supply and usage.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate and control chloramination processes

  1. Carry out routine plant inspections.
  2. Make adjustments to dosing to optimise system performance.
Carry out routine plant inspections.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Make adjustments to dosing to optimise system performance.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete documentation

  1. Collect and record process data.
  2. Report observations outside defined parameters for further action.
Collect and record process data.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report observations outside defined parameters for further action.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor chloramination process performance

  1. Conduct and analyse process tests and compare performance to plant operational requirements.
  2. Collect samples and test chlorine residuals.
  3. Identify and report process faults and the operational condition of plant.
Conduct and analyse process tests and compare performance to plant operational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect samples and test chlorine residuals.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare and apply chloramination chemical dosing

  1. Use, handle and store chemicals.
  2. Prepare chemical dosing according to system specifications and organisational requirements.
  3. Maintain information related to chlorine and ammonia supply and usage.
Use, handle and store chemicals.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare chemical dosing according to system specifications and organisational requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain information related to chlorine and ammonia supply and usage.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate and control chloramination processes

  1. Carry out routine plant inspections.
  2. Make adjustments to dosing to optimise system performance.
Carry out routine plant inspections.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Make adjustments to dosing to optimise system performance.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete documentation

  1. Collect and record process data.
  2. Report observations outside defined parameters for further action.
Collect and record process data.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report observations outside defined parameters for further action.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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 chloramination process performance

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

1.2 Collect samples and test chlorine residuals.

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

2. Prepare and apply chloramination chemical dosing

2.1 Use, handle and store chemicals.

2.2 Prepare chemical dosing according to system specifications and organisational requirements.

2.3 Maintain information related to chlorine and ammonia supply and usage.

3. Operate and control chloramination processes

3.1 Carry out routine plant inspections.

3.2 Make adjustments to dosing to optimise system performance.

4. Complete documentation

4.1 Collect and record process data.

4.2 Report observations outside defined parameters for further action.

Required Skills and Knowledge

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 chloramination process performance

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

1.2 Collect samples and test chlorine residuals.

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

2. Prepare and apply chloramination chemical dosing

2.1 Use, handle and store chemicals.

2.2 Prepare chemical dosing according to system specifications and organisational requirements.

2.3 Maintain information related to chlorine and ammonia supply and usage.

3. Operate and control chloramination processes

3.1 Carry out routine plant inspections.

3.2 Make adjustments to dosing to optimise system performance.

4. Complete documentation

4.1 Collect and record process data.

4.2 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. If not otherwise specified the candidate must demonstrate evidence of performance of the following on at least one occasion.

operating control and chemical dosing equipment

performing chloramination process calculations including at least one of:

chlorine and ammonia dose rate

chlorine to ammonia ratio

dichloramine concentration

collecting samples and conducting tests including at least one of:

total chlorine

free chlorine

monochloramine

ammonia and hypochlorite strength

pH

analysing tests

identifying and reporting process and operational faults

monitoring chloramination systems

making appropriate system adjustments including at least one of:

flow rate

chlorine feed rate

ammonia feed rate

chlorine to ammonia ratio

calibration of chemical dosing equipment

preparing and applying chloramination chemical dosing, including at least one of:

liquefied chlorine gas

sodium hypochlorite

anhydrous ammonia

aqua ammonia

pH correcting chemicals including lime soda ash

sodium hydroxide

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.

microbiological aspects of water quality

chloramination process theory

chlorine and ammonia dosing equipment

operational problems including nitrification

lockout procedures for mechanical and electrical installations

risk factors and potential hazards associated with chloramination processes

equipment operation, capacity and limitations

control and communications systems