NZQA Expiring unit standard
3040 version 6
Page 1 of 4
Title
Operate raw water treatment systems in an energy and chemical
environment
Level
4
Credits
Purpose
12
People credited with this unit standard are able to: demonstrate
knowledge of the different types of raw water treatment
equipment and processes encountered in the energy and
chemical industry; operate raw water treatment processes; and
collect and interpret data.
This unit standard is for occupations such as boiler operators
and petrochemical process operators whose role can include
all or some of the following: steam generation, water treatment,
hydrocarbon processing and electrical generation in industries
including petrochemical, power generation, dairy processing,
meat processing, timber processing and other steam users.
Classification
Energy and Chemical Plant > Operation of Energy and
Chemical Plant
Available grade
Achieved
Explanatory notes
This unit standard is
expiring
1
Definitions
organisational requirements refer to instructions (oral, written, graphic) to staff on
policy and procedures which may be documented in memo or manual form and are
available in the workplace. These requirements include but are not limited to –
manufacturer's procedures, plant procedures, suppliers’ instructions, site signage,
legislative requirements and codes of practice;
code refers to the current Approved Code of Practice for the Design, Safe Operation,
Maintenance and Servicing of Boilers published by the Occupational Safety and
Health Service of the Department of Labour, and other relevant associated codes;
plant refers to the plant or unit at which the person is employed.
2
All work practices and Industry standards must comply with the following: Health and
Safety in Employment Act 1992; Resource Management Act 1991; Hazardous
Substances and New Organisms Act 1996.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3040 version 6
Page 2 of 4
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of different types of raw water treatment equipment and
processes encountered in the energy and chemical industry.
Evidence requirements
1.1
Different types of raw water treatment system are identified in terms of
operating and design concepts.
Range
1.2
Equipment used in raw water treatment is identified and explained in terms of
type and purpose.
Range
1.3
screens, strainers, vessels, pumps, tanks, chemical injection units,
settling ponds.
Different types of raw water treatment process are explained in terms of
operating concepts.
Range
1.4
clarification plants, filtration plants, chemical treatment, reverse
osmosis, ultra violet, evaporation.
settling, coagulation, flocculation, clarification, filtration,
evaporation, chemical, sterilisation.
Chemical and physical processes involved in raw water treatment are explained
in terms of purpose and effect.
Range
settling, coagulation, flocculation, clarification, filtration,
evaporation, chemical, sterilisation.
This unit standard is
expiring
Range
metals, plastics, concrete, mineral filtering media.
1.5
Use of different materials in water treatment equipment is explained in relation
to process conditions and product compatibility.
1.6
Water rights are explained in terms of plant limits.
1.7
Uses of treated raw water and the required plant specifications are explained to
identify the treatment required.
Range
potable, cooling, service, fire, downstream processing.
Outcome 2
Operate raw water treatment processes.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3040 version 6
Page 3 of 4
Evidence requirements
2.1
Need to operate raw water treatment plant is determined in terms of use.
Range
start up, shut down, control.
2.2
Correct item of equipment is identified using the plant identification and
numbering system.
2.3
Upstream and downstream effects of the operation are assessed to determine
operating requirements.
2.4
Current status of the process is determined in accordance with organisational
requirements.
Range
service, standby, isolated.
2.5
Process is operated in accordance with organisational requirements.
2.6
Raw water treatment processes are carried out safely in accordance with
accepted industry standards.
2.7
Control systems are identified, and their operation is described in terms of their
effect on the process.
Range
2.8
Preventative maintenance and routine procedures are carried out in accordance
with organisational requirements.
This unit standard is
expiring
Equipment protection systems are identified and their purpose described in
Range
2.9
2.10
level, flow, temperature, pressure, chemical injection rate,
analysis.
monitoring, log keeping, lubrication.
Changes to operating status are reported and logged in accordance with
organisational requirements.
terms of operating concepts and protection provided.
Range
over and under pressure control, trip systems.
Outcome 3
Collect and interpret data.
Range
pH, total dissolved solids (TDS), turbidity, suspended matter.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3040 version 6
Page 4 of 4
Evidence requirements
3.1
Samples are taken and analysers read in accordance with organisational
requirements.
3.2
Results are logged in accordance with organisational requirements.
3.3
Results are interpreted to identify operating requirements.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
8 November 1995
31 December 2014
Revision
2
15 December 1998
31 December 2014
Review
3
29 May 2000
31 December 2014
Revision
4
24 July 2002
31 December 2014
Review
5
28 February 2006
31 December 2016
Review
6
24 October 2014
31 December 2016
Consent and Moderation Requirements (CMR) reference
0079
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
This unit standard is
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits
from assessment against unit standards.
expiring
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
New Zealand Industry Training Organisation
SSB Code 101541
 New Zealand Qualifications Authority 2016