ABC Wastewater Treatment Class II study plan
ABC Wastewater Treatment Class II · Give each week a clear focus.
8 weeks · About 7 hours per week
Secondary Treatment (Suspended Growth and Attached Growth) & Preliminary and Primary Treatment
Diagram the activated sludge flow path from influent through secondary clarifier, labeling each unit process and recycle stream
Explain the roles of F/M ratio, MCRT/SRT, and MLSS in controlling suspended-growth performance
List the safety hazards specific to secondary treatment (confined spaces, biological aerosols, slippery surfaces) and the control for each
Describe the purpose and typical removal targets of preliminary screening and grit removal
Your checkpoint
One-page hand-drawn process flow diagram of the full liquid train with recycle streams and a 10-item hazard/control table for secondary treatment
Secondary Treatment (Suspended Growth and Attached Growth)
Calculate MCRT, F/M ratio, and MLSS inventory given daily flow, aeration basin volume, and waste sludge rate
Diagnose common suspended-growth problems (bulking, foaming, pin floc, dispersed growth) from a written set of operating observations
Compare trickling filter and rotating biological contactor operation, including media, loading, and recirculation
Identify the process control adjustments available to an operator for each diagnosis
Your checkpoint
Worked solution set of 6 process-control math problems plus a troubleshooting matrix mapping 5 symptoms to probable causes and corrective actions
Solids Handling, Thickening, Dewatering, and Digestion & Preliminary and Primary Treatment
Trace solids through thickening, dewatering, and digestion, stating the purpose and typical feed/target solids for each step
Calculate percent solids, volatile solids reduction, and sludge volume/loading for a gravity thickener and belt press
Describe anaerobic digester start-up, feeding, mixing, and the indicators of sour or unstable digestion
Explain primary clarifier hydraulic and solids loading and how to respond to a rising sludge blanket
Your checkpoint
Solids-handling calculation worksheet (8 problems) with a labeled diagram of the solids train and a digester stability indicator checklist
Pumps, Motors, Instrumentation, and Process Control & Maintenance, Troubleshooting, and Equipment Reliability
Interpret pump and system curves to explain cavitation, runout, and operating-point shifts
Describe preventive maintenance schedules for pumps, blowers, and motors and the failure signatures each schedule prevents
Read and interpret common instrumentation outputs (level, flow, DO, pressure) and identify out-of-range readings
Outline a troubleshooting sequence for a pump that has lost capacity
Your checkpoint
Maintenance and troubleshooting log template populated with 5 realistic equipment fault scenarios, each with a step-by-step diagnostic path
Milestones
Week 4: Score at least 80% on a self-made 40-question quiz covering domains 2, 3, 5, 6, and 7, and complete all four weekly deliverables