Engineering would be significantly easier if water came at the same pace.
It’s not.
The amount of wastewater entering a residential system varies throughout the day. Industrial and commercial facilities could experience operating peaks. Stormwater flow can be affected by weather conditions. Demand for clean water also increases and decreases depending on the nature of the application.
It’s not enough just to select equipment that can provide a certain flow when designing the pumping station. Engineers should be aware of the environmental conditions that the equipment will be exposed to.
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Be aware of operating conditions, Not Just Maximum Capacity
It is obvious that maximum flow is a crucial factor however it is only a part of the operation of the station. Imagine a system for wastewater designed to provide a high peak flow. Typically that flow inflows are less. When this happens however, the station has to function properly.
This raises concerns about wet-well size as well as pump operation and control, head conditions as well as how equipment will react to changes in demand.
A well-designed package pumping system brings these considerations together around the actual requirements of the site instead of treating maximum pump capacity as the main design objective.
The daily routine of wastewater
A wastewater lift station serving homes, businesses, or municipal infrastructure may experience changing influent conditions throughout its operating cycle.
The system is required to be able to collect water and operate its pumps in accordance with the control strategy established by the station. Dimensions of the structure, pumps, valves, electrical components, piping and controls play a role in that process.
Design can also include additional considerations specific to the site. Romtec Utilities is able to include auxiliary equipment, like grinder vaults and odor control equipment, based on the specific application. It is more cost-effective to create a station around a specific project rather than using general configurations for every wastewater disposal site.
Stormwater can change much faster
Stormwater is a completely different process. In dry weather, a stormwater lift station might not be used much. But during the most severe weather conditions, the station can see a significant increase in activity. The station could be a part of a flood control plan or as a detention, treatment or drainage plan.
Romtec Utilities evaluates factors including needed flow rates and head conditions, size of the system as well as site requirements and environmental factors when designing these systems.
The layout of a station used for commercial projects could differ from the design of a station created to manage stormwater in municipal areas.
Both head conditions and flow are important
Engineers must also know where the water is heading and the resistance they have to overcome. Engineers also have to understand where the water is going and what kind of resistance the pumping system must overcome.
The changes in elevation, the piping configuration the discharge conditions and other aspects of the system can affect the head conditions against which pumps operate.
The connection between head and flow is a reason why selecting an appropriate pump based upon a capacity rating doesn’t suffice. The pump technology and the station’s configuration have to be adjusted to the conditions of hydraulics throughout the application.
Create a design that is based on the conditions the station will experience
Romtec Utilities creates customized pumping system for wastewater, stormwater and clean water applications. They also design systems for industrial, boosters and other uses. Its procedure can comprise the preliminary design and budgeting process, complete plan sets systems, supply documentation, startup, testing, and commissioning.
The basic engineering principle behind it is simple: true pumping systems don’t go through their lives operating under one convenient set of conditions.
They are faced with fluctuating flow, fluctuating demand, and particular hydro requirements of the project. It is essential to create a station that is able to deal with this situation.