MBBR mixing in wastewater

Efficient and gentle mixing in MBBR reactors

25 years of mixing in MBBR processes

The MBBR process consists of a carrier media, e.g. biofilm or biomedia, which are small plastic elements on which the biofilm can grow. The carrier media must be in contact with the wastewater, so mixing is necessary.
Landia has 25 years of experience with mixing in MBBR processes and has a wealth of experience. It is important that the carrier media is mixed as efficiently and gently as possible. Gentle means that the impact from the mixer is as small as possible, as harsh treatment can cause damage to the plastic elements.

No wear on the carrier media – no wear on the propeller

The contact between the carrier media and the propeller creates friction and so potential wear. Landia BioMover mixers for MBBR all have a low propeller tip speed of between 3 and 8 m/s, and they so they provide optimal protection of the plastic elements.
All Landia propellers are made of stainless steel with a material thickness of 6-8 mm. They have proven to be virtually impossible to wear out in MBBR applications – unlike certain other types of propeller material.

In fact, it is possible to set criteria for service and set requirements for information on expected lifetime costs when preparing tender material. I would like to encourage my colleagues to remember this to avoid nasty surprises in the long run.

- says Ib Pedersen

 

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Cases - wastewater

WastewaterBiogasGasMix

New digester mixing system delivers better yields for Eco Verde Energy (EVE)

Online, one can find no end of advice on mixing systems for biogas digesters; often going into great detail about impeller designs, speeds and angles – but away from the office desk, speak to a Plant Manager or AD operator, and they’ll soon tell you that even the best mixing system in the world isn’t something that they want – inside the tank.

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IndustrialWastewater

Daphne finds prime solution for primary problematical lift station

Following an intensive 5-day survey of its wastewater treatment process, the highly renowned brewery, Timothy Taylor’s has upgraded its aeration process by introducing the AirJet system from Landia.

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Wastewater

New biogas production landmark for Scottish Water’s acclaimed sludge facility at Nigg

If we took a short trip forward in time to 2040, and then looked back at how some organisations in the water industry successfully achieved Carbon Net Zero, it’s likely you’ll see a large four-letter word: NIGG.

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Wastewater

Daphne finds prime solution for primary problematical lift station

Suck it up, pressurize it and send it to the treatment plant. In theory, this should be a straightforward job for pumps at a lift station. However, as we all know, the curse of so-called ‘flushable’ products in our sewer systems is also proving that some so-called ‘non-clogging pumps’ are getting clogged.

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Wastewater

Long-lasting Chopper Pumps continue to go hell for leather

When Pittards, the leading leather goods producer, moved part of its manufacturing process from Leeds to Yeovil, they made very sure that its long-serving wastewater pumps went with them.

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Wastewater

The Valley Center way - combining energy savings now – with total cost of ownership

At Valley Center Wastewater Treatment Plant, and at an increasing number of facilities across Kansas, the decision to buy the more expensive equipment at the outset is proving to be the most economic. Savings in long-term maintenance are important, but in the shorter term, energy savings are fundamental.

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Wastewater

Huge savings made at leachate treatment plant

At a landfill’s leachate treatment centre, where floating biomass was reducing the plant’s throughput, the introduction by Viridian Systems of a new mixer has created annual savings on chemicals of around £85,000.

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WastewaterBiogasGasMix

Mix to the max at Yorkshire Water’s major new Energy & Recycling Facility

At Yorkshire Water’s new £50M Huddersfield Energy and Recycling Facility (E&RF), the digester mixing system from Whitchurch-based Landia is ensuring that total gas production can reach its anticipated 22,192Nm³/d (normal cubic meter/day).

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IndustrialWastewater

No more FOG, as major crust problem caused by Fats, Oils and Greases is defeated

Throughout Ohio there is a large a number of meat/food processing plants and municipal sites whose wastewater system is plagued by fats, oils, greases (FOG) and debris.

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WastewaterBiogasGasMix

A Better Blend

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

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Related products

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

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