Facility manager Joe Becker shows the control room at Covanta Energy's waste-to-energy plant. The key to controlling air emissions is to have efficient burning, but the plant uses a number of other techniques to "scrub" pollutants out of the flue gases. The plant operates like other fossil fuel plants which create steam through combustion and then send the steam through a turbine to generate a steady flow of power.
October 21, 2011 9:47 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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