| English | eng-000 |
| sludgeworks | |
| Deutsch | deu-000 | Kläranlage |
| ελληνικά | ell-000 | μονάδα επεξεργασίας λυμάτων |
| ελληνικά | ell-000 | σταθμός επεξεργασίας λυμάτων |
| English | eng-000 | purification plant |
| English | eng-000 | sewage treatment plant |
| English | eng-000 | sewage-farm |
| English | eng-000 | wastewater treatment plant |
| polski | pol-000 | oczyszczalnia |
| polski | pol-000 | oczyszczalnia ścieków |