- Maps the physical functions of wastewater treatment after the sludge treatment
- Contains aeration tank and secondary settlement tank
- Plastic granules used as the soiled load can be air-dried and re-used
- Sludge return has a flow measurement system with an adjustable pump for setting and monitoring the sludge return ratio
- Oxygen feeding on the station uses an electrically adjustable compressed air diaphragm pump. Combined with the available oxygen sensor, there is also an option of extending the oxygen feeding system to control circuit
- To guarantee energy-optimized oxygen feeding, in-line oxygen measurement is required and must be combined with the oxygen feeding actuator in a control circuit, preventing unnecessary energy use and possible biochemical malfunction
- Periodic addition of sodium sulphite (Na2SO3) to the upstream supply water causes continuous oxygen consumption, simulating the oxygen demand of bacteria feeding an organic matter in a real biological treatment of wastewater.
Wastewater Treatment Station
Wastewater Treatment Station
Topics Covered
- Behavior of flakes at different flow velocities and different solid loads
- Hydraulic overloading and consequences
- Basic function of aerobic water treatment
- Function of sludge return
- Analog level measurement via a pressure sensor
