NWP347B. Certificate III. Water Operations. Evidence & Assessment Guide. Monitor, operate & control coagulation and flocculation processes

Transcription

1 Certificate III Water Operations Evidence & Assessment Guide NWP347B Monitor, operate & control coagulation and flocculation processes This unit of competency describes the outcomes required to monitor, operate and control coagulation and flocculation plant; and to measure and report on system performance and process quality control. The ability to identify faults, determine and apply technical adjustments, conduct chemical dosing procedures and produce technical reports is essential to performance. Trainee Name Assessment Result (AC or NC) Date of Completion Signature of Trainee Signature of Assessor Completion Summary

2 Final Assessment Report Trainee assessment readiness Name of Employee : Signature of employee : Date : I agree that: 1. I am comfortable with completing this assessment task 2. I understand why the assessment is taking place 3. I understand my right of appeal 4. Competency based assessment has been explained to me 5. Discussion about special considerations or needs I have has taken place 6. OH&S issues relating to the assessment task have been considered 7. My Assessor has related my work role to the range statement Assessor details YES NO Client technical assessor : Client assessor position : Client signature : Date : RTO assessment RTO : Hunter TAFE [CFFET] RTO Representative(s) : Dr Graeme Fullick Signature : Date : Overall Assessment Competent Not Yet Competent Date : See Action Plan below COMMENTS ASSESSOR/EMPLOYEE: ACTION PLAN GAPS/TRAINING REQUIRED: Version 2.0 June

3 Unit Purpose Successful completion of this unit should enable you to monitor, operate and control coagulation and flocculation processes. By completing this unit you should be able to: Monitor coagulation and flocculation plant performance. Control chemical use. Operate and control coagulation and flocculation processes. Compile coagulation and flocculation process records. Grading This unit is Ungraded. Students will receive a result of AC (Achieved Competency) or NC (Not Yet Competent) on their transcript of academic record based on their commitment to the requisites of the Unit Guide. Required Skills & Knowledge Required skills include; Conducting routine plant inspections and taking samples and performing basic tests, preparing and applying chemical dosing according to instructions, identifying and reporting system faults, making basic system adjustments according to instructions and completing documentation. Required knowledge includes; Process layout, features and components of coagulation and flocculation systems, theory of process operations, chemicals used for coagulation and flocculation, chemical dosing processes, risk factors and potential hazards related to coagulation and flocculation systems, risk control requirements, including safety equipment and material safety data sheets (MSDS), lock-out procedures for mechanical and electrical installations and hydraulic isolation, equipment operation, capacity and limitations, operation of pumping and valving systems, control and communications systems, policies, procedures and relevant legislation, water testing procedures, equipment operation, capacity and limitations, effects of weather and conditions on operation of site or plant, pumping and valving systems, procedures for storing and handling dangerous goods and chemicals, chemical and biological principles of coagulation and flocculation processes. Critical Aspects of Competence Critical aspects of Competence (CAC) are the absolute musts that a trainee needs to meet in order to acquire this unit of competency. The candidate should: Version 2.0 June

4 Demonstrate an understanding of the underpinning knowledge and the application of skills as described in the required skills and knowledge section. The candidate should demonstrate the ability to monitor, operate and control coagulation and flocculation processes by: Conducting routine plant inspections, taking samples and performing basic tests. Preparing and applying chemical dosing according to instructions. Identifying and reporting system faults. Making basic system adjustments according to instructions. Completing documentation. Range Statement 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 of the candidate, accessibility of the item, and local industry and regional contexts. Processes may include chemical addition, flash mixing and flocculation. Legislative and organisational requirements may include by-laws and organisational policies, standard operating procedures, environment protection, OHS, including use of personal protective equipment, chemicals, dangerous goods, lifts and cranes, World Health Organisation standards, Australian Drinking Water Guidelines, National Water Quality Management Strategy, Environment Protection Authority regulations, licensing agreements, electrical standards. Chemicals may include aluminium and iron-based coagulants, synthetic organic polymers, ph adjusting chemicals, such as lime, soda ash and caustic soda. Routine plant inspections may require interaction and communication with other employees, other authorities and general public, visual observation, identification of corrosion damage, implementation of reporting procedures that may also include procedures for implementation of by-laws, organisational policies and statutory requirements, use of equipment, including electronic monitoring and metering systems, manual chart recording systems, basic hand tools, sampling and laboratory testing equipment, computerised equipment, communication equipment, personal protective equipment. Tests may include flocculation growth, flocculation time, mixing time, mixing energy, ph, colour, turbidity, routine jar tests, residual aluminium or iron. System adjustments may include ph correction, chemical dosing. Version 2.0 June

5 Process calculations may include preparation of dosing solutions, jar test dosages, dry and liquid chemical feed rates, mixing intensity. Reports may include plant performance data, chemical usage. What do I need to do? You may need to; Read the following Suggested Evidence Table and find documentation (or other evidence) that meets the Performance Criteria from your workplace. Complete any written questions under the Required Knowledge Questions part. Your assessor may ask you to perform an Observed Demonstration of the tasks associated with this unit if it is deemed appropriate. Get your supervisor to complete a Third Party Report checklist. What resources are available for this unit? The availability of resources available depends on the unit being studies. Some units are considered assessment only, and some require extensive materials to deliver properly. Furthermore, available resources change if a unit has been contextualised to your specific organisation or workplace. Generally, available resources include; Assessment & Evidence Guide (THIS document) Learner Resource Unit E-Guide Online & multimedia resources You can check the availability of these resources at cffet.net/water. Where do you start? If your assessor has given you a Learner Resource for this unit then you should complete this first, then proceed down the list below; From the Suggested Evidence Table in THIS Assessment & Evidence Guide; o Collect the suggested evidence o Perform the suggested demonstrations o Explain to your assessor what needs to be explained Answer the Required Knowledge Questions in THIS document Get your supervisor to sign off the Third Party Report form in THIS document Version 2.0 June

6 Speak to your trainer about completing the final assessment (if required) Common tasks for all units include Suggested Evidence Table Required Knowledge Questions Observed Demonstrations if it is deemed appropriate. Third Party Report Specific tasks unique to completing this unit could include Workplace research projects Work journals Exams External formal assessment (e.g. specific licenses) On completion Get everyone involved to sign off the unit to say you are competent or not yet competent If not yet competent, discuss gap training options with assessors and supervisors. Complete gap training and then get the sign-off. Version 2.0 June

7 Suggested Evidence Table Use this table to provide you with suggestions as to what evidence to collect against each of the performance criteria listed. Contact your instructor if you have any difficulties. If you attach documents for evidence you can number them and place the numbers next to the relevant Evidence Doc. space in the evidence log. Elements Performance Criteria Can I do this? / How do I show that I can do this task? Monitor coagulation and flocculation plant performance Control chemical use Operate and control coagulation and flocculation processes Monitor test results and processes to ensure compliance with parameters of operation Identify and report process faults and operational condition of plant according to legislative and organisational requirements Use, handle and store chemicals according to organisational procedures and statutory requirements. Determine and apply chemical dosing in line with plant processes, organisational procedures and statutory requirements Maintain chemical supply and usage records according to statutory requirements Carry out routine plant inspections according to organisational and plant requirements Collect process samples and conduct standard tests Carry out system adjustments and process calculations to improve system performance according to organisational procedures and statutory requirements Provide evidence such as log sheets etc. that demonstrate that you conduct tests to determine plant performance Evidence Doc. Provide evidence of how you report faulty equipment and the operations status of the this section of your plant Evidence Doc. Provide evidence that you routinely handle and store chemicals according to company requirements. Evidence Doc. Provide evidence that you routinely control chemical dosing in your plant. Evidence Doc. Provide evidence that you carry out routine plant checks according to company guidelines. Evidence Doc. Provide log or other records to prove that you perform sampling and carry out routine tests (such as turbidity) relating to coagulation of flocculation at your plant. Evidence Doc. Demonstrate to the assess or how you undertake system adjustments to improve system performance in a clarifier or other related plant. Version 2.0 June

8 Elements Performance Criteria Can I do this? / How do I show that I can do this task? Compile coagulation and flocculation process records Compile reports from plant and system data in line with organisational procedures and statutory requirements Report observations outside defined parameters for further action Provide evidence that you routinely inspect all of the plant and report any plant or equipment requiring maintenance using company guidelines, and report the results of these to appropriate personnel. Evidence Doc. Version 2.0 June

9 Evidence log When you include any items as evidence of competence from this unit in your folder, make sure you key it in this table so your assessor can relate it back to the elements and performance criteria. For example, if you provide an SOP as evidence, label it as 1 and then refer to it as 1 in the table below by providing a name for the document. Evidence number Evidence name Suggested workplace research projects If your trainer-assessor or workplace mentors suggest relevant projects for you to complete as part of your training then list them here. Place completed projects or other associated evidence in the folder. Version 2.0 June

10 Required Knowledge Questions 1. What does the term coagulation mean? 2. What does the term flocculation mean? 3. Provide a drawing or schematic of any area of your plant that utilises flocculation or coagulation. Version 2.0 June

11 4. What is the function of the flocculation or coagulation in the wastewater treatment process? 5. What chemicals are typically used to help coagulation and flocculation in water or wastewater? Version 2.0 June

12 6. How do these chemicals work? Version 2.0 June

13 Work record / Observation checklist This checklist can be used by the RTO assessor, the workplace assessor or by the trainee s supervisors/mentors. Read the instructions below to clarify the process. Task being observed Comments Date E PC Instructions: Fill in the columns so that we know what was observed, how well the trainee performed (comments), the date of the observation. Your trainer/assessor will complete the Element (E) and Performance Criteria (PC) columns. Version 2.0 June

14 Third Party Report Checklist This report verifies that...has an awareness and application to monitor, operate & control coagulation & flocculation processes. Supervisors need to check trainee s skills against the Performance Criteria. Performance Criteria Checked Date Initials 1. Monitor test results and processes to ensure compliance with parameters of operation 2. Identify and report process faults and operational condition of plant according to legislative and organisational requirements 3. Use, handle and store chemicals according to organisational procedures and statutory requirements. 4. Determine and apply chemical dosing in line with plant processes, organisational procedures and statutory requirements 5. Maintain chemical supply and usage records according to statutory requirements 6. Carry out routine plant inspections according to organisational and plant requirements 7. Collect process samples and conduct standard tests 8. Carry out system adjustments and process calculations to improve system performance according to organisational procedures and statutory requirements 9. Compile reports from plant and system data in line with organisational procedures and statutory requirements 10. Report observations outside defined parameters for further action Comments: Third Party signature Third Party name Date Version 2.0 June