Most Effective Commercial Sewage Lift Station Design

An effective commercial sewage lift station design has to match your industry’s needs. Often, it’s a pump system put in to move sewage to the sewers, but there’s a problem. The sewer line is at a higher elevation than the pipes leaving the business. For example, a hotel may have dozens of bathrooms with wastewater going to the lowest elevation, often a basement wet well, and then out to the nearby sewer.

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When you have wastewater at a lower elevation that needs to travel to a higher elevation, the best solution is a sewage lift station. The lift station needs to be designed to meet needs and efficiently move the sewage along its route. You don’t want clogs to create issues. How do you determine what is the most effective commercial sewage lift station design?

Factors to Consider

When choosing your commercial sewage lift station design, what should you consider? These are the key points to consider when designing the lift station.

#1- Flow Capacity

Start with the flow capacity. You’re going to have peaks where more wastewater is leaving than usual. If you own an office building, toilets and sinks will get more use during office hours. At night, the flow decreases. You have to play your sewage lift station to match the peak flow rates. Leaving some extra room for the unexpected is a smart idea.

Flow capacity is calculated by going over all of the fixtures in the commercial building or area. You have to look at the max load for each of those fixtures. If you have 20 toilets and each toilet flush sends five gallons of water to the sewage lift station, there’s the chance that you’ll get 100 gallons of wastewater hitting the lift station at once. Add sinks, dishwashers, washing machines, etc. to that figure. While it’s unlikely they’d all run simultaneously, it’s better to plan accordingly than have a lift station that isn’t prepared for the peak flow rate.

#2 – Force Main

You now have the peak flow rate. You have to take that and consider the velocity of the force main, which is the pressurized pipe that handles the sewer pump’s discharge. You want to keep that velocity to two to five feet per second. This is important as it keeps solids from settling without creating head loss. It also helps you decide the minimum pipe size to prevent clogging of the force main.

Force main pressure may have the velocity change rapidly. If that happens, you end up with a rapid increase in water pressure known as water hammer. Water hammer can damage valves and lead to costly repairs. Making sure the water pressure on valves and other components is within the correct psi range is essential for force main pressure.

#3 – System Head

Head loss occurs when there is friction in pipes or components like the elbows. Friction can make it harder for a pump to cool down, resulting in unnecessary wear and tear. You want to avoid head loss. To do this, you want to plan for the system head curve. If you make the pipe length and elbows too small, it can lead to head loss. If you consider the vertical lift that the wastewater must be able to travel, you keep wear and tear to a minimum and reduce the need for unexpected maintenance.

#4 – Wet Well

All of the commercial wastewater may collect in a covered wet well. That wet well collects the wastewater that needs to be pumped to the sewer lines. Knowing the right size for this wet well is also essential. In the Water Pollution Control Federation’s manual, rules state sewer pumps shouldn’t run less than 5 minutes or more than 30 minutes. Your wet well needs to be large enough so that the pump falls within these discharge rates.

#5 – Area Regulations

Towns, cities, and municipalities all have regulations you must follow. These regulations are in place to prevent wastewater from overloading a wastewater treatment plant, which increases the risk of raw sewage going into bodies of water before there is enough time to treat it. You don’t want to design a lift station that increases flow so much that it impacts the effectiveness of downstream lift stations.

You may be required to design a sewage lift station that accommodates several decades of use. That means planning for growth and expansion, which also benefits you because you have a system that will not need replacing in a few years. You save money on future expansions and improvements.

#6 – The Site

You have to choose a site that considers the impact on the environment. If you’re building a commercial sewage lift station near a wetland, you could cause harm. Any flooding would also impact your lift station. You need to be near a power supply, have a site that drains well, and be located in an area where the odors won’t cause issues with residents. If there may be issues with the smell, you need to consider odor control in your design.

Types of Sewage Lift Stations

A typical sewage lift station has a wet well with a pump and piping. The pump pushes wastewater uphill to the gravity sewer manhole. Wastewater travels into the wet well for the pump to push out when the water level is high enough.

Submersible pumps are one option. The pump sits on the floor of the wet well. The impellers draw the wastewater through the pump and into the piping, heading to the sewer. A screw pump is an alternative that suits many commercial facilities’ needs due to the lift, low maintenance requirements, and efficiency.

Why Choose Screw Pumps?

Screw pumps are the best choice for moving large volumes of sewage from a commercial area, while keeping an eye on maintenance costs, downtime, and efficiency. You have two choices for screw pumps: enclosed or open.

An enclosed screw pump sits within a tube. Lakeside Equipment has two types: Type C or Type S. Type C screw pumps use a rotating tube, while Type S has a stationary tube. Here are the benefits of enclosed screw pumps.

• Designed for drop-in replacement
• No grouting or trough is required, shortening the time needed for installation and lowering costs
• Type C inclines up to 45 degrees and is up to 10% more efficient than an open screw pump
• Type S inclines range from 22 to 40 degrees and is able to pivot

An open screw pump is the opposite. The exposed screws sit in a concrete or steel trough and can be installed at angles of 22 to 40 degrees. Here are a few facts to know about open screw pumps:

• Hydraulic lift of up to 50 feet
• Move as little as 90 gallons per minute to as much as 55,000 gallons per minute
• Permanently lubricated roller bearings to reduce maintenance
• Pre-screening is not necessary thanks to the non-clogging design
• Slow operating speeds with variable pumping capacities
• Up to 75% efficient
• Wet well is not required

What’s most important when it comes to a commercial sewage lift station? You want a practical design that gets the job done without requiring a lot of maintenance or wear. A lot goes into a commercial sewage lift station, and it’s not always something you can design on your own. It’s best to call an expert.

Lakeside Equipment’s screw pumps meet and exceed your goals. We’ve been designing screw pumps since the s and have the experience you need for fuss-free operation and extreme efficiency. Call our experts at 630-837-.

Pumping stations are collection chambers responsible for the transportation of water in various places, including residential water supply, agricultural irrigation, industrial processes, and flood prevention. 

These stations are equipped with powerful pumps and controls designed to efficiently move water from one location to another, ensuring availability and safety.

This blog explores what pumping stations are and the benefits they offer, highlighting their importance in modern water management and environmental protection. 

Let’s get started and explore the top 10 benefits these pumping stations offer to our communities and the environment.

What is a Pumping Station?

It is a station equipped with pumps to move water from one place to another. They are essential in areas where water doesn’t naturally flow the way we need it to. 

For instance, they help lift water to higher ground or push it across vast distances. Whether it’s for drinking water, irrigation, or treating wastewater, pumping stations ensure that water reaches its destination efficiently.

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Moreover, pumping stations play a crucial role in urban areas, especially in preventing floods. They pump out excess water from storm drains, keeping streets and homes safe from water damage. 

In short, we can say that pumping stations are key players in managing our water resources, making sure that communities have access to clean water and are protected against flooding.

10 Advantages of a Pumping Station

Pumping stations offer numerous benefits that extend far beyond simply moving water from point A to point B. They are fundamental in ensuring that communities have access to water, protecting areas from flooding, and much more. 

Let’s delve into some of the key advantages that pumping stations provide, illustrating their importance in our daily lives and the environment.

1. Improved Water Supply

Pumping stations are essential in ensuring a stable and reliable water supply for various uses, including domestic, agricultural, and industrial needs. By efficiently moving water from reservoirs, rivers, or wells to treatment plants and then to consumers, they play a critical role in meeting the water demand of a growing population. 

This process ensures that everyone has access to the water they need for drinking, cooking, and cleaning, irrespective of their location.

2. Flood Control

In areas prone to heavy rainfall and flooding, pumping stations are a lifeline. They are designed to quickly move excess water to designated areas, preventing it from accumulating in streets, homes, and businesses. 

This capability not only protects property and lives but also reduces the economic impact of flood events. By managing stormwater efficiently, pumping stations help maintain regularity during adverse weather conditions.

3. Enhanced Sewage Management

Sewage management is another critical function of pumping stations. They transport wastewater away from residential and commercial areas to sewage treatment plants. This process is vital for public health and environmental protection, as it prevents the contamination of natural water bodies and groundwater. 

Effective sewage management through pumping stations also facilitates the recycling and safe disposal of waste, contributing to a cleaner and healthier environment.

5. Energy Efficiency

Modern pumping stations are designed with energy efficiency in mind. Advances in technology have led to the development of pumps and control systems that consume less energy while maintaining high performance. 

This not only reduces the operational costs associated with water and wastewater management but also minimises the carbon footprint of these essential services. 

6. Cost-Effectiveness

Investing in modern, efficient pumping stations can lead to significant cost savings over time. By optimising water distribution and minimising waste through precise control and monitoring systems, these stations reduce the operational expenses related to water treatment and distribution. 

The initial cost of setting up or upgrading a pumping station is often offset by the savings achieved through reduced energy consumption and lower maintenance requirements, making them a cost-effective solution for water management.

7. Supports Industrial Processes

Many industrial operations depend on a consistent and reliable water supply, which pumping stations provide. Industries such as manufacturing, power generation, and chemical processing use large quantities of water for cooling, processing, and cleaning purposes. Pumping stations ensure that these industrial demands are met efficiently, supporting economic growth and productivity. 

Furthermore, they can also handle the removal of industrial wastewater, helping industries comply with environmental regulations by ensuring proper treatment before discharge.

8. Environmental Protection

Pumping stations play a crucial role in protecting the environment. By managing stormwater, facilitating sewage treatment, and preventing the overflow of water bodies, they help maintain the natural balance and prevent pollution of ecosystems. Properly managed water flow reduces the risk of soil erosion and protects aquatic habitats, contributing to biodiversity and the overall health of the environment. 

Additionally, energy-efficient and technologically advanced pumping stations minimise carbon emissions, aligning with global efforts to combat climate change.

9. Emergency Water Supply

In situations such as droughts, natural disasters, or system failures, pumping stations can be crucial in providing an emergency water supply. They are equipped to quickly mobilise resources and redirect water to affected areas, ensuring that communities have access to life-saving water supplies during critical times. 

This resilience is crucial for disaster preparedness and response, highlighting the importance of pumping stations beyond their day-to-day operations.

10. Technological Integration

The integration of modern technology into pumping stations has vastly improved their efficiency, reliability, and adaptability. With advancements such as remote monitoring, automated control systems, and predictive maintenance, these facilities can operate more seamlessly and respond more quickly to changing water demands and potential issues. 

This technological evolution enables more sustainable water management practices, ensuring that pumping stations continue to meet the needs of both current and future generations.

Conclusion

To sum up, pumping stations are essential for our water management systems, offering a wide range of benefits from improving water supply and flood control to enhancing sewage management and supporting industrial processes. 

They not only play a crucial role in environmental protection but also in ensuring the efficiency and cost-effectiveness of water resource management. With the integration of modern technologies, pumping stations are set to become even more vital in our efforts to sustainably manage water resources. 

If you’re interested in utilising the benefits of a pumping station, Resolute Civils is here to help. Contact us today to explore how we can support your water management needs and contribute to a sustainable future.

FAQs

How do pumping stations contribute to maintaining public health?

Pumping stations are crucial in preventing cross-contamination between drinking water distribution and waste removal systems. Properly maintained stations help avoid health risks in various settings, including multi-storey buildings, hospitals, and residential areas​.

What are the main benefits of pump stations for communities?

Pump stations help in water conservation, waste management, reducing flooding risks, improving water pressure, and can operate with minimal supervision. They are beneficial in efficiently transporting water or sewage, especially in areas with challenging topographies​.

Can pumping stations improve water pressure in residential areas?

Yes, pumping stations can significantly boost water pressure in communities or locations experiencing weak water pressure, facilitating daily tasks and improving the overall quality of service in water distribution​​.

Are pump stations capable of automatic operation?

Pumping stations can operate efficiently with minimal or no supervision. They can be automated for operation, reducing the risk of personal injuries and allowing remote monitoring to ensure smooth functioning​​.

How do pump stations help in flood prevention?

Pump stations are particularly beneficial in low-lying areas as they can divert water to locations that can better manage the water load, minimising the risk of flooding and associated damages​.

What makes pump stations adaptable for various applications?

The adaptability of pumping stations lies in their ability to handle various types of wastewater, flow rates, and installation requirements, making them suitable for a wide range of applications from residential developments to industrial sites​.