Climate changes in the Northeast has also played a role in nudging local government to invest in sewage treatment pumping equipment as unpredictable storms can overload the system.
Planning for New Digester Pumps
Double Disc Pumps and Municipal Sewage Pumping
For years, we have been asking wastewater treatment plants (WWTP) what they like about double disc pumps and what they don’t like. We have even been compiling a database with what regions of the USA and Canada have success with this type of pump for sewage and which areas have had more challenges.
One of the things that most WWTP’s say is that there has been limited competition in the specifications put out for bid by municipalities and consulting engineers working on wastewater projects. As we all know a monopoly in the pump industry is seldom a good thing for quality, innovation and of course pricing for pumps and parts.
Plunger Pump Sewage Transfer Pump in PA
For wastewater treatment facilities that are upgrading their sewage pumping equipment, getting the right pump technology to do the job is critical. For one thing,
How a Double Disc Pump Works
We have all seen the outside of a double disc pump but rarely do we see what makes the pump actually work. Just to review, a double disc pump is a positive displacement pump that uses a trunnion (elastomer), a disc and a connecting rod to force sewage from the suction side to the discharge side of the pump by creating a vacuum inside the pump body. The valve chambers with the black check valves you see in the photo help to manage higher than normal concentrations of grit and solids in municipal wastewater.
Compare Double Disc Pumps With Single Disc Pumps
Since we launched the Sludge Pro Disc Pump product line, there have been several questions as to whether or not a single disc or double disc pump is more appropriate for a specific wastewater treatment application.
To be clear, there is not always a need for a double disc pump, a single disc pump will fit the pump specification properly. One of the reasons why consulting engineers and contractors have put the double disc pump specification in place is because there has been few other alternatives.