Anaerobic Digestion and Power Generation
New progressive cavity pump technology aids in anaerobic digestion system.With economic problems and concerns about the environment, one project in Ohio plans to help both issues. More jobs, clean...
Q. What information is available regarding bearing minimum loads for pumps? A. All rolling element bearings require a minimum applied load. This ensures that normal elasto-hydrodynamic operation...
Enterprising biosolids pump manufacturers are finding abundant new opportunities in the biosolids segment. With wastewater management becoming a key issue, everyone from truck owners to sludge...
Pumps and Systems, June 2009Combined system overflows (CSO) put a significant toll on the Great Lakes, especially considering all the cities that discharge into them: Milwaukee, Chicago, Toledo,...
Pumps & Systems, September 2007The concept of using a positive displacement pump to transfer dewatered biosolids, commonly called sludge cake, is not new. However, the designs of the pumps used...
Pumps & Systems, April 2008Artificial lift technology selection is highly dependent on the conditions of the wellbore and the specific application parameters of a given well. Electrical...
Pumps & Systems, July 2008Click here for "Focus on Fundamentals" Part 1, Part 2, Part 3 and Part 5. In the June 2008 issue, we turned our attention from centrifugal to positive...
Because these pumps require regular attention, end users should carefully consider the design options.
These pumps require regular attention, so end users should carefully consider the design options.
Selecting this equipment for dewatering decreased maintenance requirements, 
saving more than $160,000.
New Progressive Cavity Pump Technology
Progressive cavity (PC) pumps are commonly referred to in industry as mono-pumps, screw pumps, eccentric screw pumps or worm pumps. All are positive displacement pumps. The inventor of the progressive...
These specialized pumps assisted one company in developing a new water disinfection device for municipalities.
The 77 pumps at the Puralube Zeitz site leverage progressing cavity and centrifugal pumps to recycle used oil into more than 140,000 metric tons of base and mineral oil products.
Smart Conveying TechnlogyIntroduced in September 2010, seepex's Smart Conveying Technology allows the stator to be re-adjusted giving longer stator and rotor life compared to conventional designs. It...
Customized equipment helped an energy company achieve greater operational efficiencies, lower maintenance and improved diluent injection control.
Progressive Cavity Cake Pumps in Wastewater Treatment
Replacing conveyors with pumps improves efficiency and sanitation in an Ohio wastewater treatment plant.A Delaware, Ohio, wastewater treatment plant needed a solution to replace its conveyer system....
Pumps & Systems, February 2009Since the introduction of progressive cavity (PC) pumps (see Figure 1) many years ago, stator maintenance has been a concern of plant operators and maintenance...
These pumps do not shear, and they provide consistent flow of fluids of different viscosities.
The addition of a cardan joint helps resolve wear and failure and delivers improved angularity and smooth transmission of radial and axial loads.
Smart conveying technology improves uptime at a coal-fired power plant.
One pump manufacturer provided a major paper mill with what could become a new industry standard.
Pumps and Systems, February 2007Natural gas is a clean-burning energy source well suited as a boiler fuel, vehicle fuel, and heating residences as well as large structures. Coalbed methane (CBM) is a...
While this type of pump is ideal for high-viscosity liquids, it can present users with unique challenges.