Sewage Pump Station Emergency Overflow Prevention
Sewage Pump Station Emergency Overflow Prevention
(OP)
The current project involves the upgrade of 350 pump stations in Sydney NSW Asutralia to prevent dry weather overflows. Conventional wisdom is to provide balance tanks to prevent an overflow due to loss of power etc. Thye size of the tank is based on the response time and the consequences/likelihood of events occurring.
Have any planners or designers in this forum other novel methods of providing protection from overflows in the event of failure of the pumps or other emergency condition? Can you steer me to websites where there may be technical data on such solutions.
Have any planners or designers in this forum other novel methods of providing protection from overflows in the event of failure of the pumps or other emergency condition? Can you steer me to websites where there may be technical data on such solutions.





RE: Sewage Pump Station Emergency Overflow Prevention
Cheers
James
RE: Sewage Pump Station Emergency Overflow Prevention
For one chilled water application, where the tank volume would be celestial had we considered the overflow, we have gone for automatic normally open on/off valves which close upon failure of power supply. If you take power supply to these valves in series with pumps starter overflow can be prevented even incase of pump failure.
Regards,
RE: Sewage Pump Station Emergency Overflow Prevention
The use of actuated valves would not solve your problem as any restriction on flow into the pumping station will just cause the incoming sewer to back and then flood out through the lower manholes on the incoming sewer.