Engineering would be much easier if water came at the same pace.
It’s not.
The amount of waste that enters a residential water system can change throughout the day. Industrial and commercial facilities could experience operating peaks. The flow of water in storms can be affected by weather conditions. Demand for clean water can also change dependent on the use.
It’s not enough just to pick equipment that will meet a certain flow rate when designing the pumping station. Engineers must understand the conditions that the equipment will be exposed to.
Image credit: romtecutilities.com
Think about operating conditions, Not Just Maximum Capacity
The flow rate is of course crucial, but it represents only one element of station operation. Imagine that a wastewater treatment system was designed to handle a large volume of flow. Typically the flows coming in can be considerably lower. When this happens however, the station has to be operating properly.
This raises questions regarding wet-well capacity, pump operation, control conditions, head, and how the equipment responds 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 wastewater industry has its own day-to-day rhythm
The conditions of the influent at a wastewater liftstation which serves homes business, municipal infrastructure or even businesses could change in the course of its operation.
The station’s control plan determines how the system manages the collection of wastewater and its pumps. The structural dimensions, the pumping equipment, piping and pumps as well as electrical components and controls all play a part in this process.
The design may also include aspects specific to the particular site. Romtec Utilities can incorporate auxiliary systems like grinder vaults and odor-control equipment in the event that they are required by the particular application. The result is a station which is specifically designed to suit the needs of the project, rather than being a standard design that is that can be used for all wastewater facilities.
Stormwater changes much more quickly
Stormwater is a distinct operation. In dry weather the stormwater lift station could not be utilized as frequently. However, during severe weather conditions, the station can be able to witness an increase in activity. Stations could be a component of larger flood control techniques, such as detention or treatment which is why the stormwater plan is an essential element of system design.
Romtec Utilities evaluates factors including required flow rates and head conditions, system size, site requirements, and environmental aspects when designing these systems.
The design of a station that is designed for a commercial project may differ significantly from the design of a station designed for stormwater management in municipal areas.
Head Conditions Are Important Alongside Flow
The problem of moving 1,000 gallons is not the only engineering problem. Engineers must also know the direction of the water and the resistance that the pumping system has to overcome.
The head of the pump is affected by many factors such as elevation changes and piping configurations, discharge conditions and other system features.
This relation between head and flow is another reason to select one’s pump purely based on its rating is not enough. The technology of the pump and station’s configuration should be aligned to the hydraulic conditions throughout the application.
Design for the Conditions the Station is likely to experience
Romtec Utilities creates customized pumping system for stormwater, wastewater and clean water applications. They also develop systems designed for industrial, booster and other uses. Its process may include budgeting and preliminary design, complete plans, system supply, documentation and startup testing and commissioning.
The fundamental principle of engineering is that a real pumping systems don’t work in a condition.
They are subject to shifting flows, changing demands, as well as project-specific hydraulic requirements. This reality is something to consider when designing a functional station.