Elements and Performance Criteria
- Monitor coagulation and flocculation plant performance.
- Control chemical use.
- Operate and control coagulation and flocculation processes.
- Compile coagulation and flocculation process records.
Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge
The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria Required Skills and Knowledge the Range Statement and the Assessment Guidelines for the Training Package
where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice
In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge Questioning will be undertaken in a manner appropriate to the skill levels of the operator any cultural issues that may affect responses to the questions and reflecting the requirements of the competency and the work being performed
|The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the Performance Criteria, is detailed below. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs if the candidate, accessibility of the item, and local industry and regional contexts.|
Processes may include:
|chemical additionflash mixingflocculation.|
Organisational and statutory requirements may include:
|by-laws and organisational policiesstandard operating proceduresenvironment protectionoccupational health and safety, including use of personal protective equipmentchemicalsdangerous goodslifts and cranesWorld Health Organisation standardsAustralian Drinking Water GuidelinesNational Water Quality Management strategyEnvironment Protection Authority regulationslicensing agreementselectrical standards.|
Chemicals may include:
|aluminium and iron based coagulantssynthetic organic polymerspH adjusting chemicals such as lime, soda ash, caustic soda.|
Routine plant inspections may require:
|interaction and communication with other employees, other authorities and the general publicvisual observationidentification of corrosion damageimplementation of reporting procedures that may also include procedures for the implementation of by-laws, organisational policies and statutory requirementsuse of equipment, including:electronic monitoring and metering systemsmanual chart recording systemsbasic hand toolssampling and laboratory testing equipmentcomputerised equipmentcommunication equipmentpersonal protective equipment.|
Tests may include:
|flocculation growth flocculation time mixing timemixing energypHcolourturbidityroutine jar testsresidual aluminium or iron.|
System adjustments may include:
|pH correctionchemical dosing.|
Process calculations may include:
|preparation of dosing solutionsjar test dosagesdry and liquid chemical feed ratesmixing intensity.|
Reports may include:
|plant performance datachemical usage.|