24.4 MB (1.9 MB compressed)
3500 x 2437 pixels
29.7 x 20.6 cm ⏐ 11.7 x 8.1 in (300dpi)
POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Water purifier. Coloured scanning electron micrograph (SEM) of the ceramic housing from a water purification filter. This porous housing acts as a filter, removing solid material as water passes through it. The rest of the purification unit (not seen) consists of coconut shell charcoal to remove odours and gases, and an ion-exchange resin to remove ions like metals, chlorides and sulphates. Magnification: x3175 at 6x7cm size.
Model release not required. Property release not required.