Mixers for wastewater

Get the mixing that best suits your wastewater system with a mixer or flow generator from Landia. We have solutions for large volumes of water, smaller tanks and for liquids with varying amounts of dry matter content.

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The benefits of a submersible mixer for wastewater (low speed)

Landia POPL-I is a low-speed mixer or generator flowmaker. Its primary use is for mixing and creating flow in large volumes of water at an exceptionally low energy consumption. 
With the adjustable propeller blades, the energy consumption can be adjusted by changing the angle of the propeller blades. it may be possible to achieve an energy consumption that is less than 1 W/m3.

The propeller blades on a POPL-I Flowmaker are made of stainless steel. Experience shows that the propeller blades last forever, and you therefore get a lifetime warranty on propeller blades on your POPL-I mixer. If your wastewater is of an aggressive nature, POPL-I can even be supplied in acidproof stainless steel.

Flexible mixer for wastewater (medium speed)

Landia POP-I 180 is a flexible and efficient mixer. It is used for mixing and flow creation with a low energy consumption. It can be used, for example, in aeration tanks or anaerobic tank sections. Landia POP-I 360 is most often used for mixing liquids with a high dry matter content such as dewatered sludge. The relatively low speed and strong propeller design make the POP-I 360 the ideal mixer for all types of highly viscous liquids.

The Landia POP-I is also available in stainless steel, if needed.

The benefits of a submersible mixer for wastewater (compact)

Landia POD-I is a compact mixer that is typically used for mixing liquids with a relatively low dry matter content and in smaller tanks. The POD-I can be operated at liquid levels below 1 m. The propeller speed is 900, 1200 og 1800 rpm. If Landia POD-I is to be used for aggressive liquids, it is also available in stainless steel.

Case study about submersible mixers

Our models

The sensible choice for your system

  • checkReliable equipment with a proven long lifetime of use gives you time to focus on other important things during the workday.
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Our solutions within wastewater

Case studies - wastewater


A Better Blend

An automated mixing system helps an Illinois treatment plant improve biogas production and increase volatile solids destruction.

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New wastewater mixers reduce maintenance and improve health & safety

Following a highly successful upgrade to its wastewater process, Glatfelter, the leading global supplier of engineered materials, has made further investments in mixers made by Landia.

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Stalwart Submersible Mixers help Montana WWTP make big energy savings

When the small team at Daffy Hills Lane selected their new mixers as part of plant upgrade in 2004, they chose very wisely indeed – and not just because those same mixers are still dutifully working away today.

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Landia and Cambi help deliver big upswing in biogas production for the water industry

Just south of Aberdeen, improvements continue to be made at Scottish Water’s Sludge Treatment Centre (STC) in Nigg – but at a site still approaching its full potential, 0.9~1.0MW per tonne of Dry Solids is already being consistently produced.

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Greaseballs gone as new pumps get to work

Situated approximately halfway between two of America’s largest cities, Madisonville (population 4396) might not deal with the same mega volumes of wastewater that are treated in Dallas and Houston, but for its highly dedicated team, there is never any let up in their commitment to their city’s treatment plant.

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Forward dive for long-lasting Landia mixers at St Andrews

Following an intricate diving operation, ESD (the joint venture involving Galliford Try, MWH Treatment and Black & Veatch) has completed the successful upgrade of its mixing operation at Scottish Water’s Wastewater Treatment Plant (WWTP) in St Andrews, Fife.

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MSE Systems bring in Landia pumps & mixers to help treat potato effluent

Following the successful installation two years ago of Landia Chopper Pumps and a Landia Aeration System, MSE Systems is set to install a further three units from Landia for one of the UK’s leading supplier of potatoes.

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Poultry wastewater aerated as MSA bring Landia’s aeration equipment to Saudi Arabia

In the Kingdom of Saudi Arabia, Landia’s AirJet is playing a key role in the success of the aeration and wastewater system for a major poultry processor.

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Straight-Shooting Chopper Pumps Hit the Target in Gun Barrel City

At the wastewater treatment plant in Gun Barrel City, Texas, sewage first enters an equalization tank before it actually goes to the site’s bar screens.

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New Poultry Wastewater installation taken care of by Watermark Projects and Landia 

Watermark Projects (part of leading engineering services company, W.A Cooke & Sons) has introduced a Landia mixing system to help handle wastewater at an expanding organic poultry producer in South Wales.

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A strong partner with extensive experience in wastewater

Landia supplied the first mixers for sewage treatment plants in the 1980s and today you will find Landia products at sewage treatment plants worldwide. The wastewater industry is growing year by year and we are keeping pace. When you contact Landia, you will speak with staff who know the industry, and who knowsand understand the wastewater industry.

This is how we develop the best solution with you