Activated Sludge Operations

to be scheduled based on pandemic status - hopefully in the fall

Activated Sludge Outline

This course is structured for operators and managers of activated sludge plants. It is operations oriented providing practical information to use in day-to-day operations. Using a practical approach, operating plants are used to relate actual operations during the discussion on the workshop topics. Participants will apply their newly gained knowledge in solving the case history during the last day. Participants will receive an operations manual for activated sludge treatment systems.

Review of Wastewater Treatment

· Composition of Wastewater - types of solids, organics
· Preliminary Treatment - screening, equalization
· Primary Treatment - settleable solids vs. suspended solids removal
· Secondary Treatment - conversion of organics, solids capture
· Sludge Treatment - thickening, dewatering, disposal

Overview of Biological Treatment

· Bacterial growth - metabolism, respiration, growth phases
· F/M
· Growth Pressures: Temp., pH, dissolved oxygen, nutrients, toxics, hydraulic loading

Activated Sludge Process Control Tests

· Settlometer - measuring sludge settling characteristics
· Depth of blanket - determining clarifier inventory and sludge detention time
· Microscope - assessing microbial health/composition
· Oxygen uptake - assessing metabolic rates; toxicity detection; shock loads
· Process monitoring

Controlling Recycle Sludge Flow

· RSF strategies
· Optimizing clarifier capacity
· Controlling clarifier inventory

Controlling Waste Sludge Flow

· MCRT/Sludge age
· F/M
· Sludge yield
· Controlling sludge inventory
· Wasting strategies

Nutrient Management

· Nutrients - ammonia, phosphorus, various types used
· Nitrogen - managing considerations
· Nitrification/Denitrification
· Nutrient management plan

Controlling Aeration

· Monitoring, D.O. probes
· Mixing
· Oxygen demand - organic, nitrification, endogenous respiration
· D.O. deficiency

Troubleshooting Overview of Activated Sludge Problems

· Poor floc formation
· Foaming
· Rising sludge
· Toxicity
· Rapid settling, turbid effluent
· Slime bulking
· Filamentous. bulking


Registration Fee: $500 USD

Workshop Registration

Workshop Descriptions

Main Page

Registration Fee: $500 USD for 2-day

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