Engineering would be considerably easier if water came at the same pace.
It doesn’t.
Wastewater entering a residential system may vary through the day. Commercial and industrial facilities may experience peak operating times. The amount of stormwater fluctuates dramatically depending on the weather. Demand for clean water can also change in accordance with the purpose for which it is used.
Thus, designing an efficient pump station isn’t just it’s a matter of finding a flow rate and choosing machines that are able to meet the requirements. Engineers should be aware of different conditions that the equipment will be used.
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Don’t only think about capacity maxima, but also operational conditions
The flow that is the highest in importance however, it is just part of the station’s operation. Let’s say that a wastewater system is designed to accommodate a high maximum flow. Most of the times the flows coming in can be considerably lower. However, the station has to operate appropriately during those ordinary periods.
This raises questions regarding wet-well capacity, pump operation, control conditions, head, and how the equipment will respond to changes in demand.
A properly engineered package pumping system brings these considerations together around the actual requirements of the site instead of treating maximum pump capacity as the entire design objective.
The daily cycle of wastewater
During the life cycle of a wastewater lift station the conditions of the influent can change.
The system must be able to collect water and operate its pumps based on the plan of control that is set for the station. The structural dimensions, the pumping equipment, piping and pumps as well as electrical components and controls all play a the role in this procedure.
The design may also include considerations specific to the site. Romtec Utilities is able to incorporate auxiliary equipment such as grinder vaults, or odor control equipment, depending on the specific application. It is cheaper to design a station around a specific project than to apply general configurations for every wastewater treatment facility.
Stormwater is able to change significantly faster
Stormwater is a completely different process. A stormwater facility can be quite quiet during dry weather, but encounter a significant inflow of water following a severe weather incident. Stations may be part of bigger flood control techniques, such as detention or treatment which is why the stormwater plan is a crucial element in system design.
Romtec Utilities evaluates factors including the flow rates required along with head conditions, system size as well as site requirements and environmental aspects when developing these systems.
Stations used for commercial developments can appear very different from those intended for municipal stormwater applications.
Head Conditions Matter Along With Flow
Engineers also need to know what direction the water is going and the resistance they need to overcome. Engineers must also know where the water is going to go and what resistance to overcome by the pumping system.
Elevation changes, piping configuration, discharge conditions, and other system parameters affect the head conditions in which pumps work.
This relation between flow and head is another reason why choosing a pump solely based on its rating isn’t enough. The design and technology of the station have to suit the hydraulic requirements of the whole application.
Plan the station in the conditions it will actually have to endure
Romtec Utilities creates customized pumping system for stormwater, wastewater and clean water applications. They also design and develop systems designed for industrial, booster and other purposes. The design process begins with preliminary designs and budgeting, as well as plan sets, system supplies, documentation, testing and startup.
The fundamental principle of engineering is that the real pumping systems aren’t operating under one condition.
They face changing demands, flows and particular hydro requirements of the project. This fact is something to consider when designing a productive station.