Water industry pumps

The need for clean, usable water has never been greater but meeting this demand presents a major economic and environmental challenge for the water industry worldwide. Atlantic Pumps offers pump solutions to help solve many solids and sludge handling applications in water and wastewater treatment applications.

With extensive experience in the global market, our pumps are high quality, robust and designed to handle water that is often highly contaminated and which standard pumps won’t cope with. We are committed to supporting the water industry by providing environmental and sustainable solutions that are budget-friendly and long-lasting.

The unpredictability of wastewater and the Atlantic Pumps solution

Budget constraints, extreme weather patterns, ageing equipment reaching the end of its life and complex infrastructure all play a part in hampering the delivery of clean water, and treatment of wastewater. Yet effective wastewater treatment is crucial in meeting today’s industrial and agricultural challenges and there is an urgent need for equipment that will lower TOTEX (Total Expenditure) across a wide range of situations.

Many pumps are designed to work efficiently for the transfer of clean potable water. Yet in wastewater treatment, and even clean-water sludges, the water can be contaminated with grit, sand, gravel, debris, litter, stones and even animal waste. Everything from a mixture of household waste to industrial debris and effluent may be incorporated, causing substantial issues for standard pumps.

While pumps that have been adapted to cope with this sludge or slurry can be effective in moving wastewater, they are expensive to buy, complex to run, and have an unpredictable lifespan.

Atlantic Pumps has extensive experience manufacturing centrifugal and submersible slurry pumps for the quarry and mining sectors, and as they operate in some of the toughest and most rugged environments around, our pumps have to be durable and efficient.

This durability easily crosses over into the water industry’s need, and the very same pumps are also ideal for a raft of applications in wastewater treatment.

Key challenges facing the water industry

Extreme flow variations and more solids in wastewater place heavy demands on the water industry’s infrastructure, impacting its ability to effectively treat wastewater at the scale required. Some of the specific issues are:

  • Unpredictable solids – Literally anything can end up in a combined sewer, and even clean water sludges contain naturally occurring grit, fine particulates and so on. These solids can rapidly build up putting undue strain on pumps and leading to breakages, blockages, or premature wear.
  • Sludge build-up – This can put pumps under added pressure, increase wear and tear and reduce machine life. It can also increase the pump energy demand and lead to increased downtime to clean it out or undertake repairs.
  • Abrasive slurries – Many fine particles in both clean and wastewater are abrasive which can quickly wear down equipment parts, reducing the efficiency and lifetime of the asset.
  • Environmental pressures and regulation – There is a huge focus on wastewater in terms of environmental output and staying compliant with environmental legislation. Often, non-compliance and under-performance is a direct result of energy wastage or pump failure. 

The benefits of Atlantic Pumps

Our pumps are used worldwide for a multitude of industrial applications including mining, quarrying and large-scale manufacturing. They are super heavy-duty, and many are designed to pump abrasive liquids continuously without breaking down – worn parts can simply be replaced when required rather than the entire pump.

Some other benefits include:

  • Corrosion and abrasion resistant   
  • Reduction in maintenance costs and downtime
  • Safeguarding of long-term value and productivity
  • Multiple pump sizes to suit different applications

You can rely on us to provide the highest quality, hardworking pumps in the water industry, reducing your maintenance costs and improving productivity in wastewater treatment. We also pride ourselves on the fastest response time in the event of breakdown to minimise downtime and keep your business moving.

Atlantic Pumps’ Recommended Brands

As a solutions provider, we offer several different pump technologies for different applications; these are some of our recommended brands for the water industry:

  • Audex – Industrial submersible dewatering pumps developed for use in the toughest of environments and suitable for the most abrasive fluids. Available in sizes from 2” to 10” discharge, they feature cast-iron and high chrome wear parts and agitators to maximise longevity and performance. Audex pumps have an invaluable seal fail detector system that shuts down the pump in the event of seal wear or failure.
  • LSM – Industrial peristaltic pumps from 2” discharge to the world’s largest at 8”. LSM pumps are ideal for pumping sludges that are shear-sensitive, contain a high content of dry matter, or carry solids. Typical applications include digestate, thickened underflow, sludge and raw sewage transfer. Also used in Atlantic Pumps grit chamber and digestor tank cleaning systems. 
  • Slurry Pro – Horizontal and vertical centrifugal slurry pumps,designed for heavy-duty sludgel applications where high head or high flow is required. Pump linings and impeller material is specified to optimise wear-life depending on the solids type, from suspended grit to large stones. Also used in sand washing, recycling and other specialist areas. Manufactured using materials which work optimally with suspended solids with either rubber-lined of high-chrome alloy wear parts.
  • Flygt Pumps – World-class submersible slurry pumps for reliable industrial and abrasive dewatering and groundwater control. Submersible pumps are designed to be used in a range of challenging conditions and are ideally suited for moving dirty water and abrasive solutions. 
  • Toro Pumps – Centrifugal pumps that are configured for clear water, chemicals or high temperature water.

Solutions for specialised applications in the water industry:

Centrifuge Feed Pumps

Successful operation of centrifuge separators requires a consistent fluid feed. These systems usually incorporate a VFD (viable frequency drive) and a flow or pressure meter.

Sludge/Digestate Transfer

Atlantic Pumps have developed several refinements to sludge pumping, reducing energy use, servicing costs and downtime for digestate and sludge transfer. Progressive Cavity type pumps are good for smooth, non-abrasive pastes and LSM pumps excel at reducing the downtime and parts replacement cost that is commonplace with abrasive, gritty digestate.

Filter & Strain Press Feed

Filter presses require a high pressure supply, which can take a long time to achieve. Our solution to this is to configure two types of pump together – a fast-feed pump which switches to a high-pressure pump. This can significantly increase throughput and energy efficiency. See our case studies, such as this 40% increase in filter press output

Replacing Bucket Elevators

When fresh from the centrifuge dewatering separator, digestate can often be too moist for effective elevator bucket removal, yet too dry for common pumps. Atlantic Pumps has proven experience in engineering alternative systems using LSM pumps, reducing blockages and energy waste.

Digestate Tank Emptying/Cleaning

Digestate tanks and grit chambers need periodic emptying to restore their capacity. The good news is that is can be done faster, safer and more efficiently than ever before.


Pretreatment thermal hydrolysis of sewage sludge sterilises and improves the biodegradability of digestor feedstock, resulting in treatment and as much as a 50% increase in biogas yield and easier digestate drying. Pumps for extended periods of high temperature and pressure are required for this process.

Heat Exchanger Feed

Heating digestate to the required sterilisation temperature and subsequent heat recovery is achieved by pumping media through a series of narrow pipes. The small diameter pipes and multiple bends require pumps engineered to compensate for the additional friction created.

Digester Recirculation/Gas Mix

The quality and speed of anaerobic digestion (AD) outputs is increased by effective recirculation and mixing of the gas and liquid layers in the digestor tank. Without recirculation, scum layers form which restricts the biological process. The recirculation system needs to be sealed to prevent the introduction of air (oxygen) and leakage.

Reliable recirculation equipment, with minimal servicing requirements, is important in AD, as is the ability to inspect and replace wear parts without the need for a complete system shut-down, or having personnel required to enter confined spaces.

View our full range of pumps

Contact us to speak to our specialists today for a quote, advice or site survey.

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