Image: Slow sand filter profile
Size of this preview: 450 × 600 pixels. Other resolutions: 180 × 240 pixels | 3,024 × 4,032 pixels.
Original image (3,024 × 4,032 pixels, file size: 3.91 MB, MIME type: image/jpeg)
Description: A profile of sand and rock used as part of the slow sand filter is on display in a transparent tube attached to a staircase in a water purification plant.
Title: Slow sand filter profile
Credit: Own work
Author: Z22
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
Image usage
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