A municipality has an outdated wastewater lift station. The pumps have reached the end of their life expectancy, the controls are outdated, as well as the access hatch is damaged. The concrete wet well is robust and solid.
Should the station be removed? Not necessarily. It is essential to consider whether the infrastructure already in place is capable of supporting a modern system of pumping without compromising capacity in the future in terms of reliability, reliability, or accessibility.
Image credit: romtecutilities.com
Retrofitting a pumping station can be a fantastic method to protect infrastructure and replace components that are no longer functioning.
Begin with the Structures No One wants to replace.
Wet wells are often the most expensive and difficult component to replace as they are constructed underground and attached to pipes that are already in place, and essential for wastewater collection.
Retaining a concrete construction that is still usable could make it easier to dig and build.
But, any deterioration in the vicinity of the access hatch can complicate your decision. Romtec Utilities identifies wet well hatch replacement as an usual retrofit requirement. It might be more reliable to replace the top slab rather than attach a new hatch to a deteriorated concrete. This option can be utilized to increase accessibility and enhance the structure’s usability without the need for rebuilding the entire wet well.
An improved pump changes the engineering
Let’s say a residential area has exploded in size since the first lift station was put in place. The pumps that are in place may not be sufficient for increased flows of wastewater.
A pumping station upgrade could involve higher-horsepower pumps, but equipment selection cannot happen independently of the surrounding system.
Engineers should also evaluate the requirements for hydraulics of the system, such as the rate of flow as well as dynamic head total. If you choose to upgrade a pump without taking into account these requirements, it can cause problems with operation rather than addressing these. Planning for future capacity when you are making the initial design process can allow for later expansion much more easily.
Keep the water moving during construction
A wastewater pump station retrofit creates a challenge that regular project for replacement of equipment may not be able to overcome: the station may need to remain operational during construction.
When contractors aren’t busy the wastewater still flows in. According to the report the project, a temporary bypass pumping system might be necessary to maintain service as the existing equipment is taken down or new components installed.
Romtec Utilities faced this kind of problem in the Federal Law Enforcement Training Center in Brunswick, Georgia.
The project involved replacing two older wastewater lift stations and ensuring the operation at the facility. Specialized engineering on site, packaged systems and bypass pumping techniques were used to accommodate existing station footprints and operational requirements. This illustrates how important it is to look at the construction process before installing.
If you decide to replace, it is the best Option
Not all stations are suitable to be renovated. A seriously damaged wet well insufficient structural capacity or significant changes to the hydraulic requirements can make an upgrade to a sewer lift station more appropriate than modifying the existing structure.
In making a decision, it is crucial to take into consideration the structural health of the building, its compatibility with equipment, its accessibility to construction, service continuity and the long-term requirements. Romtec Utilities begins retrofits and replacements by identifying elements that will remain as well as the ones that require replacement.
The company develops engineering solutions tailored to the site, as well as preliminary plans as well as budget estimations. Prefabricated components are also able to help to organize installation and decrease some building requirements that are required on-site.
The Project isn’t Over Until the Pumps Are Running
The modernized lift station should be able to function as a system. Prior to returning the lift station to service, testing the startup and commissioning tests will ensure that the pumps and controls as well as other equipment are operating in accordance with the approved design.
Operator training, as well as operation and maintenance manuals are equally important. Maintenance personnel should be knowledgeable with the latest equipment and operational procedures, as well as the manuals before they assume responsibility for the station.
A successful retrofit helps preserve structures that are still useful as well as addressing the weaknesses that made modernization necessary.
For facilities owners and municipal authorities This means looking beyond the immediate repair. Most successful projects blend the latest equipment with the existing structures. They will maintain the essential services while construction is underway and set up the pumping system to last for a long time.