File:Trickling filter bed 2 w.JPG
Commons is a freely licensed media file repository. You can help.
English: Sewage treatment trickling filter bed using plastic media – small rural treatment plant at Beddgelert sewage treatment works, Gwynedd, Wales, UK.
|Date||11 January 2005|
|Source||Own work (taken by user Velela with a Pentax Optio555 digital camera. 1/50sec @ f2.8)|
( Reusing this file)
Find out about Schools Wikipedia
Schools Wikipedia was created by children's charity SOS Childrens Villages. SOS Childrens Villages helps more than 2 million people across 133 countries around the world. There are many ways to help with SOS Childrens Villages.