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| biological clarification | |||
| biological epuration; biological purification; biological treatment; biological wastewater treatment; biological wastewater treatment Types of wastewater treatment in which biochemical or bacterial action is intensified to oxidize and stabilize the unstable organic matter present. Examples of this type of treatment use intermittent sand filters, trickling filters, and activated sludge processes and sludge digestion | |||
| biological cleaning | |||
| epuration biologique: 10 Phrasen in 2 Thematiken |
| Natürliche Ressourcen und Artenschutz | 3 |
| Umwelt | 7 |