DWA Industry Guide Watermanagement, Wastewater-Waste

5.1.1 Wastewater lifting installations

5.1.2 Wastewater pumps

5.1.24 Spiral pumps, bucket elevators

6.1.7 Scrapers

6.1.10 Presses for screenings

6.1.14 Grit chambers

6.1.17 Grit chamber material vitrifiers

6.1.22 Skimmers

6.2.4 Aeration systems

6.2.6 Aerator candles

6.2.8 Aeration installations

6.2.24 Sedimentation tank covers

6.2.25 clear-water extraction systems

6.2.28 Combinations of contactor plants, biological filter plants/aeration plants

6.2.38 Agitators

6.2.40 SBR plants

6.2.47 Biological filter plants

6.2.48 Biological filter plant equipment

7.2.17 sludge-water discharge systems

10.1.2 Gears

10.1.3 Actuators for fittings

10.2.2 Electric motors

10.2.3 Gear motors

10.2.4 Actuator motors

19.3.3 Gate valves

19.3.9 Screens

19.3.13 Gates

20.2 Protective devices for fish

20.8 Hydro-electric power plants

22.6.15 Steel and sheet walls