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Evidence Guide: NWPTRT092 - Operate and control digestion 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

 

NWPTRT092 - Operate and control digestion processes

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

Plan and prepare for work

  1. Determine work requirements from job specifications and plans.
  2. Select and check equipment to meet safety requirements of task and site.
  3. Select, fit and use personal protective equipment.
Determine work requirements from job specifications and plans.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, fit and use personal protective equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate and control process

  1. Carry out routine inspection on assets.
  2. Collect process samples.
  3. Carry out routine tests.
  4. Prepare samples for laboratory testing.
  5. Identify and report process faults and operational condition of assets.
  6. Carry out basic process adjustments to enhance process performance.
  7. Monitor processes to maintain parameters of operation.
Carry out routine inspection on assets.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect process samples.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out routine tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare samples for laboratory testing.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and report process faults and operational condition of assets.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out basic process adjustments to enhance process performance.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor processes to maintain parameters of operation.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete documentation

  1. Collect, record and complete process data.
  2. Identify data that falls outside normal parameters and report for further action.
Collect, record and complete process data.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify data that falls outside normal parameters and report for further action.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Plan and prepare for work

  1. Determine work requirements from job specifications and plans.
  2. Select and check equipment to meet safety requirements of task and site.
  3. Select, fit and use personal protective equipment.
Determine work requirements from job specifications and plans.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, fit and use personal protective equipment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Operate and control process

  1. Carry out routine inspection on assets.
  2. Collect process samples.
  3. Carry out routine tests.
  4. Prepare samples for laboratory testing.
  5. Identify and report process faults and operational condition of assets.
  6. Carry out basic process adjustments to enhance process performance.
  7. Monitor processes to maintain parameters of operation.
Carry out routine inspection on assets.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect process samples.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out routine tests.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare samples for laboratory testing.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and report process faults and operational condition of assets.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out basic process adjustments to enhance process performance.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor processes to maintain parameters of operation.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete documentation

  1. Collect, record and complete process data.
  2. Identify data that falls outside normal parameters and report for further action.
Collect, record and complete process data.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify data that falls outside normal parameters and report 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. Plan and prepare for work

1.1 Determine work requirements from job specifications and plans.

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

1.3 Select, fit and use personal protective equipment.

2. Operate and control process

2.1 Carry out routine inspection on assets.

2.2 Collect process samples.

2.3 Carry out routine tests.

2.4 Prepare samples for laboratory testing.

2.5 Identify and report process faults and operational condition of assets.

2.6 Carry out basic process adjustments to enhance process performance.

2.7 Monitor processes to maintain parameters of operation.

3. Complete documentation

3.1 Collect, record and complete process data.

3.2 Identify data that falls outside normal parameters and report 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. Plan and prepare for work

1.1 Determine work requirements from job specifications and plans.

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

1.3 Select, fit and use personal protective equipment.

2. Operate and control process

2.1 Carry out routine inspection on assets.

2.2 Collect process samples.

2.3 Carry out routine tests.

2.4 Prepare samples for laboratory testing.

2.5 Identify and report process faults and operational condition of assets.

2.6 Carry out basic process adjustments to enhance process performance.

2.7 Monitor processes to maintain parameters of operation.

3. Complete documentation

3.1 Collect, record and complete process data.

3.2 Identify data that falls outside normal parameters and report 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 operating at least one of the processes listed in Range of Conditions. If not otherwise specified the candidate must demonstrate evidence of performance of the following on least one occasion.

planning and conducting routine inspections

completing logs

taking samples and performing basic tests, including at least one of:

pH

DO

Redox

total solids

volatile solids (aerobic)

gas composition

total solids

volatile solids

volatile acids

alkalinity (anaerobic)

collecting samples for laboratory testing

applying basic process formulae, including at least one of:

solids loading

volatile acids to alkalinity ratio

solids retention time

making basic process adjustments according to instructions, including at least one of:

feed rate

air and oxygen feed rate

mixing

pH (aerobic)

feed rate

sludge withdrawal

mixing

sludge feed rate

pH (anaerobic)

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.

digestion process principles

types of hazards related to explosives, hydrogen sulphide, carbon dioxide

differences between aerobic and anaerobic biological processes

chemical dosing processes

chemicals used for pH control, odour control, nutrient addition

flow measurement

risk factors and potential hazards relating to anaerobic bioreactor systems

chemical and biological principles that form the basis of digestion

hydraulic detention times

Range Statement

Current digestion processes include:

anaerobic

mesophilic

aerobic

thermophilic

mesophilic