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Evidence Guide: NWPTRT031 - Operate and control sedimentation and clarification 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!

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NWPTRT031 - Operate and control sedimentation and clarification processes

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

Monitor sedimentation and clarification plant performance

  1. Monitor test results and processes to maintain the parameters of operation.
  2. Identify and report process faults and the operational condition of plant.
Monitor test results and processes to maintain the parameters of operation.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Control chemical use

  1. Use, handle and store chemicals.
  2. Prepare and apply chemical dosing.
  3. Maintain chemical supply and usage records.
Use, handle and store chemicals.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare and apply chemical dosing.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain chemical supply and usage records.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate and control sedimentation and clarification processes

  1. Carry out routine plant inspections.
  2. Collect process samples and conduct standard tests.
  3. Perform process calculations associated with sedimentation and clarification processes.
  4. Carry out system adjustments to enhance system performance.
Carry out routine plant inspections.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect process samples and conduct standard tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform process calculations associated with sedimentation and clarification processes.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out system adjustments to enhance system performance.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete documentation

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report observations outside defined parameters for further action.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor sedimentation and clarification plant performance

  1. Monitor test results and processes to maintain the parameters of operation.
  2. Identify and report process faults and the operational condition of plant.
Monitor test results and processes to maintain the parameters of operation.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Control chemical use

  1. Use, handle and store chemicals.
  2. Prepare and apply chemical dosing.
  3. Maintain chemical supply and usage records.
Use, handle and store chemicals.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare and apply chemical dosing.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain chemical supply and usage records.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate and control sedimentation and clarification processes

  1. Carry out routine plant inspections.
  2. Collect process samples and conduct standard tests.
  3. Perform process calculations associated with sedimentation and clarification processes.
  4. Carry out system adjustments to enhance system performance.
Carry out routine plant inspections.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect process samples and conduct standard tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform process calculations associated with sedimentation and clarification processes.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out system adjustments to enhance system performance.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete documentation

  1. Collect and report process data.
  2. Report observations outside defined parameters for further action.
Collect and report 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 sedimentation and clarification plant performance

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. Control chemical use

2.1 Use, handle and store chemicals.

2.2 Prepare and apply chemical dosing.

2.3 Maintain chemical supply and usage records.

3. Operate and control sedimentation and clarification processes

3.1 Carry out routine plant inspections.

3.2 Collect process samples and conduct standard tests.

3.3 Perform process calculations associated with sedimentation and clarification processes.

3.4 Carry out system adjustments to enhance system performance.

4. Complete documentation

4.1 Collect and report 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 sedimentation and clarification plant performance

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. Control chemical use

2.1 Use, handle and store chemicals.

2.2 Prepare and apply chemical dosing.

2.3 Maintain chemical supply and usage records.

3. Operate and control sedimentation and clarification processes

3.1 Carry out routine plant inspections.

3.2 Collect process samples and conduct standard tests.

3.3 Perform process calculations associated with sedimentation and clarification processes.

3.4 Carry out system adjustments to enhance system performance.

4. Complete documentation

4.1 Collect and report 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.

producing reports and logs

performing process calculations

preparing and applying chemical dosing

identifying control system faults

sampling and testing products

conducting routine plant inspections

taking samples and performing basic tests

making basic system adjustments

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

lockout procedures for mechanical and electrical installations

relevant utilities and service bodies

settling aids

theory of enhanced particle settling including chemical and physical processes

hazardous materials handling

environment, landscape and ground structure of work area

risk factors and potential hazards relating to water and/or wastewater treatment

chemical dosing processes

equipment operation, capacity and limitations

effects of weather and conditions on operation of site or plant

pumping and valving systems

control systems’ policies and procedures for storing and handling dangerous goods and chemicals

SDS

coagulation/flocculation theory and operation

chemical and/or biological principles that form the basis of sedimentation and clarification processes