Domestic Wastewater Treatment - 3 PDH

Learning Objectives

• Learn the design and operational objectives of domestic wastewater treatment plants.

• Learn about the major factors to consider in siting domestic wastewater treatment plants, including topography, availability of a suitable discharge point, working and public areas, and community master plan considerations.

• Learn about typical compounds that inhibit biological wastewater treatment processes and how they can be mitigated.

• Learn the definitions and characteristics of preliminary, primary, secondary and advanced domestic wastewater treatment processes.

• Learn about preliminary treatment processes including equalization, neutralization, temperature adjustment, nutrient addition, screening and grit removal.

• Learn about primary treatment processes including sedimentation and dissolved air flotation.

• Learn about secondary treatment processes including activated sludge, aerated ponds, aerobic-anaerobic ponds, trickling filters, chemical oxidation, chemical mixing flocculation and clarification, gravity filtration, pressure filtration, dissolved air flotation with chemicals, and anaerobic contact.

• Learn about advanced treatment processes including advanced carbon adsorption, micro straining filtration, land treatment, subsurface disposal, and groundwater recharge.

• Learn about sludge treatment processes including anaerobic digestion, aerobic digestion, autoclaving, elutriation, vacuum filtration, centrifugation, sand beds and presses.

• Learn about sludge disposal including incineration, wet oxidation, land disposal and sanitary landfills.