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| aerated lagoon; contact bed; contact filter; fill and draw contact bed; bacterial bed; bacterial bed A device that removes some suspended solids from sewage. Air and bacteria decompose additional wastes filtering through the sand so that cleaner water drains from the bed | |||
| bacteria bed | |||
| oxydatiebed: 5 a las frases, 1 temas |
| Ambiente | 5 |