EGR 242 : Clean Water Technology II
A continuation of Wastewater Technology I (EGR 241) to prepare the student in the design, operation and maintenance of advanced wastewater treatment facilities. Topics covered will include: environmental concerns, chronic and acute toxicity of wastestreams, instrumentation of specialized treatment procedures, biological and chemical observations with"hands-on" treatment observations. The student will also be expected to attend tours of local facilities (domestic/industrial). The program will also prepare the student for the State Operator's Certification Examination - Intermediate Levels. Three lecture hours and two laboratory hours per week. Spring
- Identify the organisms that are cultured in a wastewater treatment plant and what their relative abundances in the wastewater indicate about the condition of the wastewater treatment process.
- Conduct total suspended solids testing on various process streams in a wastewater treatment plant.
- Calibrate and operate pH meters and dissolved oxygen meters.
- Conduct Biochemical Oxygen Demand tests to determine the organic strengths of the wastewater process streams.
- Understand the operation and basic maintenance of various pumps including positive displacement pumps, centrifugal pumps, diaphragm pumps and air lift pumps.
- Select the proper pump based on pump curve characteristics.
- Understand the operation and maintenance of aeration equipment, clarifiers, solids handling and various disinfection equipment.
- Apply mathematical formulas for the calculation of chemical dosages, process flows, and concentrations of materials for proper plant process control.
- Determine the proper dosages of polymer for sludge conditioning.
- Understand the basics of horsepower and electricity and be able to calculate power needs to move water.
- Be prepared to take the Grade 3 or 4 Massachusetts Wastewater Operator Certification Examination.