ENLARGE
Steve Witbeck, Roseburg Urban Sanitary Authority project manager, displays a diffuser membrane at the sewage treatment facility on West Goedeck Avenue in Roseburg on Tuesday. The membrane allows tinier bubbles in the water being treated, increasing efficiency.
For the latest in water-treatment technology and energy conservation, look no further than the effervescence.
At the Roseburg Urban Sanitary Au...
At the Roseburg Urban Sanitary Au...
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