Water Treatment Plant Operator case studies
Water Treatment Plant Operator · Put your knowledge to work in context.
The Water Treatment Plant Operator credential is a state-issued certification that documents a person's competence to run the processes that turn raw source water into safe drinking water. It is aimed at operators and trainees at community and non-community systems, plus maintenance staff who want to move into operations. The Water Treatment Plant Operator case studies are 5 cases and about 3,743 words.
1Coagulation Upset After Heavy Rainfall
A surface water treatment plant draws from a river that rose 1.5 feet after a 2-inch rain event. The raw water turbidity jumped from 4 NTU to 85 NTU, and the pH fell from 7.2 to 6.6.
626 words, about 3 min2Filter Backwash Efficiency and Media Loss
A conventional filtration plant with six dual-media filters (anthracite over sand) is experiencing shortened filter runs and increased turbidity breakthrough. Each filter is 20 ft by 30 ft, with a design loading rate of 4 gpm/ft².
893 words, about 4 min3Disinfection Byproduct Compliance Strategy
A groundwater treatment plant serving 15,000 people uses free chlorine for primary disinfection. The source water is a deep well with the following characteristics: pH 7.8, alkalinity 180 mg/L as CaCO3, TOC 2.5 mg/L, and bromide 0.1 mg/L.
872 words, about 4 min4Cross-Connection Incident During Main Repair
A distribution system crew is repairing a 12-inch water main break on a busy street. The main is located near a commercial laundry that uses a boiler with a direct connection to the public water system for makeup water.
667 words, about 3 min5Instrumentation Failure and Process Control Decisions
A 10 MGD surface water treatment plant relies on a SCADA system for process control. The plant has online turbidimeters on each filter, a streaming current detector (SCD) for coagulant dose control, and a pH analyzer at the filter influent.
685 words, about 3 min