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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Operate settling process 
SAQA US ID UNIT STANDARD TITLE
12039  Operate settling process 
ORIGINATOR
SGB Water Sector 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Civil Engineering Construction 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 2  NQF Level 02 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 
2005-02-09  2007-11-28  SAQA 1058/05 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2008-11-28   2011-11-28  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard is replaced by: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
246469  Operate primary settling processes in wastewater treatment  Level 2  NQF Level 02  Complete 

PURPOSE OF THE UNIT STANDARD 
The qualifying learner achieving this unit standard in combination with context expertise standard(s) will be able to operate a settling process in accordance with legislation and work policies and procedures to ensure optimal functioning of the works. This competence will enable the learner to operate the settling process at both large and small works. The learner will understand his/her own role in contributing to sustainability and protection of the water environment in accordance with legislation and regulations. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
Numeracy NQF level 1;
Apply personal safety practices NQF level 2. 

UNIT STANDARD RANGE 
Work policies and procedures:
Best operating procedures.

Settling process:
Dortmund tanks, circular & rectangular flat bottomed clarifiers.

Sludge removal mechanism:
Hydrostatic, scraper bridge, siphon.

Legislation:
OHS Act and National Water Act.

Reports/irregularities:
Unusual odours, unusual colours, solids rising to the top, malfunction of settling process, excessive gassing. 

Specific Outcomes and Assessment Criteria: 

SPECIFIC OUTCOME 1 
Remove and dispose of settled sludge and scum in accordance with work policies and procedures 

ASSESSMENT CRITERIA
 

ASSESSMENT CRITERION 1 
1. Settled sludge and scum are removed. 

ASSESSMENT CRITERION 2 
2. Settled sludge and scum are disposed of in accordance with work policies and procedures. 

ASSESSMENT CRITERION 3 
3. Draw off points and mechanisms are maintained and kept clean. 

SPECIFIC OUTCOME 2 
Monitor the settling process in accordance with work policies and procedures 

ASSESSMENT CRITERIA
 

ASSESSMENT CRITERION 1 
1. Irregularities are noted and rectified within own scope of responsibility. 

ASSESSMENT CRITERION 2 
2. Irregularities are reported. 

SPECIFIC OUTCOME 3 
Complete routine maintenance of settling unit in accordance with work policies and procedures 

ASSESSMENT CRITERIA
 

ASSESSMENT CRITERION 1 
1. Wheels are greased as required and the consequences of not greasing the wheels are explained. 

ASSESSMENT CRITERION 2 
2. Defects are reported. 

ASSESSMENT CRITERION 3 
3. Sludge and scum removal mechanisms are checked and defects are reported. 

SPECIFIC OUTCOME 4 
Complete designated tasks and reports in accordance with work policies and procedures 

ASSESSMENT CRITERIA
 

ASSESSMENT CRITERION 1 
1. Hygiene procedures are followed in accordance with legislation and work policies and procedures. 

ASSESSMENT CRITERION 2 
2. Designated tasks are completed. 

ASSESSMENT CRITERION 3 
3. Reports are completed accurately and handed in to relevant person. 

ASSESSMENT CRITERION 4 
4. Relevant information is communicated. 


UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant ETQA according to the ETQA`s policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments at exit points of the qualification, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described both in individual unit standards as well as the integrated competence described in the qualification. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Learners should have a knowledge and understanding of:
  • The importance of following work policies and procedures
  • The importance of noting and reporting irregularities
  • The settling process
  • Health risks of working with wastewater
  • Desludging procedure
  • Scum removal procedure 


  • Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems in which responses display that responsible decisions using critical and creative thinking have been made.

    Assessment criteria:
  • Irregularities are noted and rectified within own scope of responsibility.
  • Irregularities are reported.
  • Defects are reported.
  • Sludge and scum removal mechanisms are checked and defects are reported. 

  • UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team, group, organisation, and community.

    Assessment criteria:
  • None. 

  • UNIT STANDARD CCFO ORGANISING 
    Plan, organise and manage oneself and one`s activities responsibly and effectively.

    Assessment criteria:
  • Reports are completed accurately and handed in to relevant person. 

  • UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information.

    Assessment criteria:
  • Irregularities are noted and rectified within own scope of responsibility.
  • Irregularities are reported.
  • Defects are reported.
  • Sludge and scum removal mechanisms are checked and defects are reported. 

  • UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematical and/or language skills in the form of oral and/or written presentation.

    Assessment criteria:
  • Irregularities are noted and rectified within own scope of responsibility.
  • Irregularities are reported.
  • Defects are reported.
  • Sludge and scum removal mechanisms are checked and defects are reported.
  • Relevant information is communicated. 

  • UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically, showing responsibility towards the environment and health of others.

    Assessment criteria:
  • None. 

  • UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems by recognising that problem-solving contexts do not exist in isolation.

    Assessment criteria:
  • None. 

  • UNIT STANDARD NOTES 
    This unit standard has been replaced by unit standard 246469, which is "Operate primary settling processes in wastewater treatment", Level 2, 5 credits.

    Integrated Assessment:

    When conducting assessments, assessors must ensure that they are familiar with the full text of the unit standards being assessed. Assessors must ensure that the assessment covers the specific outcomes, critical cross-field outcomes and essential embedded knowledge by developing assessment activities and tools, which are appropriate to the contexts in which the learners are working. These activities and tools may include self-assessment, peer assessment, formative and summative assessment. It may be more effective and efficient to assess a number of unit standards together in an integrated way, thus reducing the overall number of assessments and ensuring that commonalities that exist between a number of unit standards are captured in a way that makes sense for assessment.

    Assessment Option:

    Learners could be assessed using the following methods:
    Oral or written questions
    Observation
    Product sample reports 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  22673   National Certificate: Wastewater Process Operations  Level 2  NQF Level 02  Passed the End Date -
    Status was "Reregistered" 
    2007-11-28  Was EWSETA until Last Date for Achievement 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.