![File:Primary sludge drying bed in front of reed bed (3231562181).jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Primary_sludge_drying_bed_in_front_of_reed_bed_%283231562181%29.jpg/800px-Primary_sludge_drying_bed_in_front_of_reed_bed_%283231562181%29.jpg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:39, 1 November 2014 | ![]() | 2,816 × 2,112 (1.94 MB) | Fæ | == {{int:filedesc}} == {{information |description={{en|1=At the front you can see the sludge pipe from the primary settling tank. }} |date=2009-01-26 10:26:47 |author=[https://www.flickr.com/people/23116228@N07 SuSanA Secretariat] |source=https://www.f... |
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