Waste Water Treatment
Wastewater is the used water that goes down sinks, toilets and drains.
We own and operate the Waterfront Moama Wastewater Treatment Plant and the network of pipes, pumps, pits and infrastructure, some of which are on customers private land. Customers own the infrastructure that connects our network to their house or business. This is the point of connection.
Property owners are responsible for maintaining the pipes and fittings on their property up to where they connect to our water, wastewater and stormwater networks.
Protecting these pipes is important. Putting the wrong things down the toilet, sink or outdoor drain can block pipes and cause them to overflow. This will cost you money and pollute our environment.
We routinely check what's in the wastewater after it's treated. We report this to Murray River Council.
Pressurized Waste Water System
We use a Pressure wastewater systems that uses individual pumps in
collection tanks installed on each property.
Wastewater from the home or business is pumped from the collection tank to the
pipe network in the street which then sends it under pressure to the treatment
plant for processing.
Waste Water Treatment Process
The system is a Mechanical/Biological wastewater plant or Membrane Bio Reactor (MBR).
The designed MBR process is as follows:-
Raw sewage is received from the pressure sewer system and discharged over a sealed screening unit prior to discharge to the MBR tanks. The screen is automatically cleaned and the solids are collected in a sealed plastic bagging unit for offsite disposal.
The first zone is the Influent Tank, followed by the anaerobic zone, coupled with the anoxic zone. The feed from the anoxic zone is then pumped into the aerobic zone and then pumped into the MBR Tank.
Excess sludge in the system is removed on a regular basis when the mixed liquor suspended solids concentration in the return activated sludge reaches about 12,000 mg/L (-1.2% solids). The sludge is transferred via the MBR sump pump to the existing drying bed storage area.
The MBR equipment is controlled by the Main Plant Control System. Readings from instruments are electronically recorded and controls for the instruments are electronically and remotely monitored and triggered using the Plant Control System. The system can operate under Manual and Automatic control modes.
The MBR plant and associated equipment is enclosed in a building (approximate) dimensions 30m x 16m and has specially designed features to ensure incidents are minimalized and managed.
