Clean Water, Sewage, and Industrial Fluids: One Pumping Concept, Very Different Systems

On paper, a pumping project might appear straightforward. Water needs to be pumped from one place to another. In reality, the distance between these two points may be affected by elevation variations in the area, pressure requirements and solids as well as storage capacity, control electrical equipment, site restrictions, and fluctuations in the rate of flow.

For Romtec Utilities to design a pump station begins by defining those operating conditions rather than choosing the appropriate equipment from a standard catalog. The project requirements could be used to come up with preliminary designs and budgetary data.

Image credit: romtecutilities.com

Start with a simple question: Where are we doing?

The technology is changed immediately.

The flow of household sewage is subjected to significant fluctuations throughout the day. A wastewater lift station must move that wastewater reliably when gravity conveyance is unavailable or insufficient. Engineers have to take into account the following aspects: expected flow and peak conditions, pumping capacity, behavior of the wet well as well as the way in which equipment is maintained and operated.

Industrial water presents different challenges. A manufacturing or processing facility could require moving high-temperature, caustic and oily, or high-pressure fluids. Romtec Utilities designs systems for industrial applications that range from food processing and power generation to databases, pharmaceutical waste, petroleum and gas facilities.

Rainfall can create a completely new operating system

Stormwater systems are usually inactive for long stretches of time and then suddenly face the possibility of a huge volume in storms.

For instance, a rainwater lift station with a basin of detention must be compatible with the drainage plan for the area. As the water flows into the basin, temporary storage controls the immediate volume and the pumping system moves the collected water towards an authorized discharge point.

Romtec Utilities supplied this type of solution to a business park development located in Norco, California. The project called for a pumping station for emptying a detention facility into the public stormwater drainage system. The station needed be constructed as part of the drainage infrastructure for the development, rather than as a separate piece equipment.

Package Does Not Mean “Off the shelf”

It’s a common belief that a pumping mechanism for packages is just a collection of predetermined elements.

In the case of engineered infrastructure packaging may mean that all major components are linked into a system. Pumps, valves and meters, controls, communications, structural components, and other equipment may be chosen based on the required duty conditions.

This approach is especially helpful when the system is required to be linked with an existing infrastructure. In industrial plants and municipal buildings, there’s rarely unlimited space available or a totally clean space for installation. The equipment might need to be modified in accordance with existing structures, piping systems electric system, as well as operating schedules.

Capacity planning has real consequences

Undersizing becomes particularly costly when facilities expand.

Romtec Utilities supplied a sewer lift station in Portland International Airport for the PDX Next extension. The new station was designed to provide double the peak flow capacity of the previous system, as the airport facilities expanded.

This demonstrates a crucial concept of engineering: design conditions should not only reflect what an installation handles in an average afternoon. Engineers also have to be aware the impact of peak demand.

The job isn’t finished until the Equipment is delivered

Then, drawings and calculations will eventually become a functioning system. Installation coordination and documentation are crucial to the long-term success of.

What happens following the installation of a pumping device determines its performance. The choices made during initial design are apparent when flows rise or major storms are triggered, or maintenance is required.

For Romtec Utilities to integrate those choices into a comprehensive project-specific pumping strategy helps transform the equipment pieces into an infrastructure designed to handle the conditions they will be facing.