| Subject | English | German |
| nat.res. | advanced wastewater treatment, AWT | fortgeschrittene Abwasserbehandlung |
| nat.res. | advanced wastewater treatment, AWT | weitergehende Abwasserbehandlung |
| nat.res. | advanced wastewater treatment, AWT | tertiäre Abwasserbehandlung |
| nat.res. | advanced wastewater treatment, AWT | dritte Reinigungsstufe |
| environ. | 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 | Biologische Abwasserbehandlung |
| environ. | biological wastewater treatment | Biologische Abwasserbehandlung |
| environ. | collective wastewater treatment | Sammelabwasserbehandlung |
| environ. | individual wastewater treatment The process of using a natural system or mechanical device to collect, treat and discharge or reclaim wastewater from an individual dwelling without the use of community-wide sewers or a centralised treatment facility | Einzelabwasserbehandlung |
| environ. | individual wastewater treatment | Einzelabwasserbehandlung |
| social.sc., nat.sc., environ. | Institute for Inland Water Management and Wastewater Treatment | Staatliches Amt für die integrale Bewirtschaftung der Binnengewässer und für Abwasserreinigung |
| social.sc., nat.sc., environ. | Institute for Inland Water Management and Wastewater Treatment | Institut für die Verwaltung der Binnengewässer und die Abwasserbehandlung |
| nat.res. | land treatment of wastewater | Abwasserlandbehandlung |
| nat.res. | land treatment of wastewater | Abwasserbodenbehandlung |
| nat.res. | monitoring of wastewater treatment | Überwachung der Abwasserbehandlung |
| environ. | obtain the consent of pollution control authorities before discharging to wastewater treatment plants | S54 |
| environ. | obtain the consent of pollution control authorities before discharging to wastewater treatment plants | vor Ableitung in Kläranlagen Einwilligung der zuständigen Behörden einholen |
| environ. | on-site wastewater treatment A process in which used or spent water is treated at the point of origin or where it was produced, by using a septic tank or some other system to remove or reduce the impact of constituent wastes on human health and the environment | Abwasserbehandlung vor Ort |
| environ. | on-site wastewater treatment | Abwasserbehandlung vor Ort |
| ed. | wastewater treatment | Abwasserbehandlung |
| transp., environ. | wastewater treatment | Reinigung von Abwasser |
| gen. | wastewater treatment | Abwasserreinigung |
| chem. | wastewater treatment | Abwasseraufbereitung |
| gen. | wastewater treatment plant | Abwasserreinigungsanlage |
| gen. | wastewater treatment plant | Kläranlage |
| chem. | wastewater treatment plant | Abwasseraufbereitungsanlage |
| gen. | wastewater treatment plant | Klärwerk |
| environ., industr. | wastewater treatment works | Kläranlage |
| environ., industr. | wastewater treatment works | Abwasserbehandlungsanlage |
| environ., industr. | wastewater treatment works | Abwasseraufbereitungsanlage |
