Wastewater Treatment Plant Operators and Technicians

Wastewater from homes, public buildings, and industrial plants is transported through sewer pipes to treatment plants. The wastes include both organic and inorganic substances, some of which may be highly toxic, such as lead and mercury. Wastewater treatment plant operators and technicians regulate the flow of incoming wastewater by adjusting pumps, valves, and other equipment, either manually or through remote controls. They keep track of the various meters and gauges that monitor the purification processes and indicate how the equipment is operating. Using the information from these instruments, they control the pumps, engines, and generators that move the untreated water through the processes of filtration, settling, aeration, and sludge digestion. They also operate chemical-feeding devices, collect water samples, and perform laboratory tests, so that the proper level of chemicals, such as chlorine, is maintained in the wastewater. Technicians may record instrument readings and other information in logs of plant operations. These logs are supervised and monitored by operators. Computers are commonly used to monitor and regulate wastewater treatment equipment and processes. Specialized software allows operators to store and analyze data, which is particularly useful when something in the system malfunctions.

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