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

Demonstrate knowledge of advanced treatment of wastewater process 
SAQA US ID UNIT STANDARD TITLE
12069  Demonstrate knowledge of advanced treatment of wastewater 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 4  NQF Level 04  20 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2005-09-13  2008-06-11  SAQA 0160/05 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2009-06-11   2012-06-11  

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
255986  Demonstrate knowledge of advanced treatment of wastewater process  Level 4  NQF Level 04  8   

PURPOSE OF THE UNIT STANDARD 
The qualifying learner achieving this unit standard in combination with context expertise standard(s) will have a broader understanding of advanced treatment of wastewater processes including biological nutrient removal, coagulation and flocculation, tertiary treatment, advanced sludge treatment and package plants. This knowledge will contribute towards the learner`s broader understanding of legislation and compliance issues This unit standard will expand the skills base of the qualifying learner and make the person more effective in his/her tasks and open up job opportunities in related fields. This competence will contribute towards the improved quality of final wastewater products, which will impact positively on the environment and ecology. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
Literacy NQF level 3;
Operate activated sludge process NQF level 4;
Numeracy NQF level 3. 

UNIT STANDARD RANGE 
The learner must know all types of tertiary treatment.

Tertiary treatment:
Membrane technology, micro straining, silica graded sand filtration, activated carbon filtration and multimedia filtration.

Configurations:
UCT, Johannesburg, phoredox, bardenpho. 

Specific Outcomes and Assessment Criteria: 

SPECIFIC OUTCOME 1 
Explain biological nutrient removal 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. The principles of biological nutrient removal are explained. 

ASSESSMENT CRITERION 2 
2. Different configurations of biological nutrient removal are explained. 

ASSESSMENT CRITERION 3 
3. The importance of the biological nutrient removal process is explained and advantages are described. 

SPECIFIC OUTCOME 2 
Explain dosing to induce coagulation and flocculation 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. Coagulation is explained. 

ASSESSMENT CRITERION 2 
2. Flocculation is explained. 

ASSESSMENT CRITERION 3 
3. Types of flocculants are identified and explained. 

ASSESSMENT CRITERION 4 
4. Dosage of flocculant is explained based on prior tests and calculations. 

ASSESSMENT CRITERION 5 
5. Storage of different types of flocculants is explained. 

ASSESSMENT CRITERION 6 
6. Reasons for pH adjustments are explained. 

SPECIFIC OUTCOME 3 
Explain tertiary treatment 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. Types of tertiary treatment are described. 

ASSESSMENT CRITERION 2 
2. The purpose of the different types of tertiary treatment is explained. 

ASSESSMENT CRITERION 3 
3. The limitations of the different types of tertiary treatment are explained. 

SPECIFIC OUTCOME 4 
Explain advanced sludge treatment 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. The principles and advantages/disadvantages of composting are explained. 

ASSESSMENT CRITERION 2 
2. The principles and advantages/limitations of incineration are explained. 

ASSESSMENT CRITERION 3 
3. The principles and advantages/disadvantages of pelletization are explained. 

ASSESSMENT CRITERION 4 
4. Alternative sludge treatment options are explained and limitations are described. 

SPECIFIC OUTCOME 5 
Demonstrate knowledge of the different types of package plants 

ASSESSMENT CRITERIA 

ASSESSMENT CRITERION 1 
1. Types of package plants are identified and explained. 

ASSESSMENT CRITERION 2 
2. The purpose of package plants is explained and limitations are described. 


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:
  • Identification of optional flocculant for own works
  • Dosing equipment
  • Types of organisms in biological nutrient removal
  • Ways to reduce air pollution from pellitization process
  • Legislative requirements associated with compost disposal
  • Re-use of treated wastewater 
    		•


    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:
  • Different configurations of biological nutrient removal are explained.
  • Dosage of flocculant is explained based on prior tests and calculations.
  • Storage of different types of flocculants is explained.
  • The limitations of the different types of tertiary treatment are explained.
  • Alternative sludge treatment options are explained and limitations are described.
  • The purpose of package plants is explained and limitations are described. 
    		•

    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:
  • None. 
    		•

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

    Assessment criteria:
  • The principles of biological nutrient removal are explained.
  • Dosage of flocculant is explained based on prior tests and calculations.
  • Storage of different types of flocculants is explained..
  • The limitations of the different types of tertiary treatment are explained.
  • Alternative sludge treatment options are explained and limitations are described.
  • The purpose of package plants is explained and limitations are described. 
    		•

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

    Assessment criteria:
  • All. 
    		•

    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:
  • All. 
    		•

    UNIT STANDARD NOTES 
    This unit standard has been replaced by unit standard 255986, which is "Demonstrate knowledge of advanced treatment of wastewater process", Level 4, 8 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 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  22672   National Certificate: Wastewater Process Control  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2008-06-11  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.