File:Trickling filter sewage treatment plant in Brazil.png
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Date/Time | Dimensions | User | Comment | |
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current | 19:34, 6 October 2021 | 2,166 × 1,625 (7.53 MB) | EMsmile | Uploaded a work by Marcos von Sperling from {{subst:OP}} with UploadWizard |
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