Dosiero:Trickling filter bed 2 w.JPG
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Sewage Treatment trickling filter bed - small rural treatment plant Author: User:Velela.
Location: Beddgelert sewage treatment works
Source: Personal photograph taken by Author January 11, 2005
Description: Trickling filter bed using plastic media
Technical data: Pentax Optio555 digital camera. 1/50sec @ f2.8
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| date/time | username | edit summary |
|---|---|---|
| 21:42, 16 January 2005 | en:User:Velela | |
| 21:38, 16 January 2005 | en:User:Velela | |
| 21:23, 16 January 2005 | en:User:Velela | (Sewage Treatment trickling filter bed) |
[edit] Historio de la dosiero
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- (del) (cur) 21:23, 16 January 2005 . . en:User:Velela Velela ( en:User_talk:Velela Talk) . . 1296x972 (680941 bytes) (Sewage Treatment trickling filter bed)
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