Engineering would be significantly easier if water came at the same speed.
It’s not.
The amount of wastewater entering a residential system varies throughout the day. Industrial and commercial buildings may have operating peak times. Stormwater flow is affected by weather conditions. The demand for clean water also fluctuates according to the type of application.
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As a result, designing a pump station isn’t simply a matter of identifying one flow number and selecting equipment capable of meeting it. Engineers must know the possibilities of the conditions in which the system may be used.
Be aware of the operating conditions and not only the maximum Capacity
A high flow is definitely important but it’s just one aspect of the station’s operation. Imagine that a wastewater treatment system was designed to handle a huge flow at peak. Most of the time the flow inflow could be much lower. During normal operating hours however, the station will be able to function properly.
This raises questions regarding wet-well dimensions, pump operation and controls Head conditions as well as the way equipment can respond to an ever-changing demand.
The design of a properly engineered package pumps system takes into account the actual site requirements, rather than focusing on the maximum capacity of the pump.
The cycle of water that runs throughout the day
The conditions that flow through the wastewater liftstation that serves households and businesses, or infrastructure for municipal use may change during the course of its operation.
The system is required to collect the wastewater and turn on its pumps in line with the plan of control that is set for the station. This involves the structural dimensions, pumping gear, valves and pipes, as well as electrical components.
Other considerations specific to the location could influence the design. Romtec Utilities will incorporate any auxiliary systems, such as grinders, vaults and odor control devices when needed. This results in a station built around the needs of the project, instead of a generic design that is applied to all wastewater sites.
Stormwater Flows Change Much More Rapidly
Stormwater provides a totally different operating scenario. A stormwater lift station could see relatively little activity during dry conditions but then experience significant increases in flow when a weather storm occurs. The station might be a component of a flood control plan or a detention, treatment or drainage plan.
Romtec Utilities takes into consideration factors such as the flow rate that is required along with head-related conditions, the system size as well as the needs of the location and environmental considerations when designing these systems.
A station that serves a commercial property could therefore appear completely different from one that is designed for municipal stormwater applications.
The Head Conditions are vital. Together with Flow
The issue of transporting 1,000 gallons is not the only engineering challenge. Engineers also have to determine where the water will go and what kind of resistance they will have to overcome with the pumping system.
Changes in elevation, piping configuration the discharge conditions and other system characteristics contribute to the head conditions that pumps work.
The connection between head and flow is one reason that choosing a pump based on a capacity rating doesn’t suffice. The pump’s technology and station configuration must be matched to the hydraulic conditions to be used for the entire process.
Plan the station in the conditions that it will have to endure
Romtec Utilities creates customized pumping system for stormwater, wastewater and clean water applications. They also develop systems for boosters, industrial and other applications. The procedure may involve the preliminary design and budgeting process, complete plan sets, system supply, documentation starting, testing and commissioning.
The basic engineering principle behind it is simple: true pumping systems don’t go through their entire lives operating under one ideal set of conditions.
They encounter shifting flows, changing demands, and project-specific hydraulic demands. It is important to build a station that will deal with this situation.