24961 Operate Membrane Filtration Processes in Water Treatment

NZQA Expiring unit standard 24961 version 2 Page 1 of 3

Title Operate membrane filtration processes in water treatment

Level 4 Credits 12

Purpose People credited with this unit standard are able to: monitor and adjust membrane filtration process inputs; carry out preventive maintenance and repairs on membrane filtration equipment; and describe the storage, handling, and preparation of chemicals, and chemical dosing systems used in membrane filtration processes, in water treatment.

Classification Water Industry > Water Treatment

Available grade Achieved

Explanatory notes

1 Reference Legislation relevant to this unit standard includes but is not limited to the – Health and Safety in Employment Act 1992, and Hazardous Substances and New Organisms (HSNO) Act 1996.

2 Definition Organisational procedures – instructions to staff and procedures which are documented in memo or manual format and are available in the workplace. These procedures include but are not limited to – site specific procedures, laboratory procedures, manufacturers’ specifications, product quality specifications and reference to legislative or regulatory procedures relevant to the industry. 3 A person is required to have approved handler certification if handling s substances being transferred under the HSNO Act 1996. Information onis approved i handler procedures can be obtained from http://www.erma.govt.nzd . d r ar Outcomes and evidence requirements dad nan Outcome 1 tast g st gn Monitor and adjust membrane filtrationit processi inputsin rini water treatment. nun irpi Range process inputs include u but are notp limitedx to – turbidity, flow rate, flux rate, temperature, trans-membranes is x pressure,e pressure decay test, fouling rates, clean in place.i h e ThT

Infrastructure ITO Ó New Zealand Qualifications Authority 2018 SSB Code 101813 NZQA Expiring unit standard 24961 version 2 Page 2 of 3

Evidence requirements

1.1 Testing equipment is calibrated, if required, tests or measurements for monitoring process inputs are carried out, and results are recorded, in accordance with consumer demand, compliance procedures, and organisational procedures.

1.2 Process inputs are adjusted in accordance with results of testing.

1.3 Process history is analysed, trends are identified, and process inputs are adjusted in accordance with organisational procedures.

1.4 Process inputs are adjusted in response to process failure in accordance with organisational procedures.

1.5 Consumables are checked and ordered in accordance with organisational procedures.

Range includes but is not limited to – chemicals, instruments, membranes.

Outcome 2

Carry out preventive maintenance procedures on membrane filtration equipment in water treatment.

2.1 Preventive maintenance procedures are carried out, and recorded in accordance with organisational procedures.

2.2 Procedures for maintaining process continuity are carried out in accordance with organisational procedures. 2.3 Personal protective equipment is used while carrying out preventive maintenance in accordance with health and safety procedures. s is i Outcome 3 d rd ar a Carry out repairs on membrane filtration equipment din waterd treatment. nan Evidence requirements tast g st ngin 3.1 Repairs are carried out accordingitni to processri ir and/or equipment failure, and recorded in accordancen withu organisationali p procedures. us xpx 3.2 Personal protectiveish equipmenti e is eused while carrying out repairs in accordance with healthT handT safety procedures.

Infrastructure ITO Ó New Zealand Qualifications Authority 2018 SSB Code 101813 NZQA Expiring unit standard 24961 version 2 Page 3 of 3

Outcome 4

Describe the storage, handling, and preparation of chemicals, and chemical dosing systems used in membrane filtration processes in water treatment.

4.1 The storage, handling, and preparation of chemicals used in membrane filtration are described in terms of the HSNO Act 1996.

4.2 Chemical dosing systems used in membrane filtration are described in terms of the components, methods, and points of application.

Range components – chemical pipework, dosing pumps, speed control, stroke control, flow rate, tank of dilutant, instrumentation for automatic control.

Replacement information This unit standard was replaced by unit standard 29989.

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 19 September 2008 31 December 2018 Review 2 16 March 2017 31 December 2018

Consent and Moderation Requirements (CMR) reference 0101 This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.

Please note s is Providers must be granted consent to assess against standards i (accredited) by NZQA, before they can report credits from assessment against unitd standardsd or deliver courses r ar of study leading to that assessment. ad ndn Industry Training Organisations must be granteda consentta to assess against standards by NZQA before they can register credits froms tassessment s g againstg unit standards. t it in in Providers and Industry Training Organisations,ni n i whichr i haver been granted consent and which are assessing against unitu standards u pmust engagep with the moderation system that applies to those standards. s x x ishi e e Requirements for consenthT to assess and an outline of the moderation system that applies to this standard areT 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.

Infrastructure ITO Ó New Zealand Qualifications Authority 2018 SSB Code 101813