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Water and Wastewater Treatment Plant Operator

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AVG. SALARY

$42,650

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EDUCATION

High school (GED) +

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JOB OUTLOOK

Decreasing

Real-Life Activities

Real-Life Communication

You are a water treatment plant operator. You have found that it is costing your city too much to transport excess solid waste from your treatment plant up to the landfill for disposal. Is there anything you can do to eliminate or break down the sludge?

You attend a conference and read literature about new types of water treatment. "There is always something new to read about, or something that has to be figured out," says George Martin, a water treatment plant operator.

This is the brochure you read:

What happens to the waste left over from water treatment? The solids are often sent to the local landfill. It can be costly to truck and to store the waste material. In addition, this can add quickly to the capacity of the landfill. If the sludge isn't properly stored, it can create noxious (harmful) smells for neighbors of the landfill.

What can be done about the waste that comes from treating water? One suggestion is to use a facultative process that limits the amount of sludge. This method is already used in North America at beef processing plants, chicken and poultry plants, at food processing plants and by municipal sewage treatment plants.

The soluble components in the wastewater are treated with aerobic bacteria (bacteria that grows when it has contact with air). The sludge is converted into gases such as methane and hydrogen, which in turn are used as a partial food source by the aerobic bacteria.

This is an interesting summary of the new process. But you want to know more. You jot down a few questions and then pick up the phone. These are the questions you want answered. Can you find the answers in the brochure?

  1. Why is it expensive to produce sludge at a water treatment plant?
  2. Do municipal treatment plants use the facultative processing method?
  3. What is produced from the sludge?