Sewage Treatment
Course Code: SE04
►Course Objective
- A greater understanding of the wastewater process.
- Improved communication with colleagues as a result of improved confidence in the subject.
- The course provides underpinning knowledge for NVQ qualifications Operating Process Plant: Waste Water Treatment.
- Competent employees, better able to manage the wastewater process.
- Better documentation of records and risk assessments.
►Target Audience
- Local water utility sewage treatment works operators, engineers and managers.
►Course Outline
- List the purposes of wastewater treatment.
- Describe the way organic wastes pollute water.
- Identify elements of wastewater collection systems.
- Outline the stages of wastewater treatment at the typical treatment facility.
- Explain what happens to wastewater during preliminary, primary, secondary, and tertiary treatment.
- Describe methods of solids handling.
- Differentiate between the way unaerated and aerated lagoons function.
- Distinguish between suspended growth and fixed-growth systems.
- List and describe different methods of utilizing activated sludge to stabilize wastewater.
- Tell how trickling filters, ABFs, and RBCs operate.
- Explain how secondary clarifiers are used in conjunction with fixed- and suspended-growth systems.
- Identify and describe the different types of bar and woven screens used for screening.
- Identify and describe common types of grit-removal equipment.
- List factors affecting settling rates.
- Figure the length of detention time needed to settle out settleable particles.
- Describe the three principal methods of land disposal.
- Describe what colloidal particles are and outline the problems associated with removing them from wastewater.
- List chemicals used as coagulants.
- Explain how the flocculation process works.
- Explain the function of a precipitant.
- List chemical agents commonly used as disinfectants.
- Identify factors affecting disinfection.
- Describe methods for applying chlorine to wastewater
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