Water treatment plant. Part of the membrane filter system at a water treatment plant. During this stage of water treatment, known as microfiltration,

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Water treatment plant. Part of the membrane filter system at a water treatment plant. During this stage of water treatment, known as microfiltration, water is passed through a system of fine membranes. This method removes small organisms, which may be parasitic or toxic when ingested by humans, without using pollutant chemicals. Photographed in Etrembieres, Annemasse, France, in 2007.

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Size: 5150px × 3433px
Photo credit: © ACTOPHOTO/LOOK AT SCIENCES/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: animal, animals, aptenodytes, aquatic, bird, birds, cold, colonial, colony, georgia, island, king, multiple, nature, patagonicus, penguin, penguins, snow, snowy, social, south, wildlife, winter, zoology