Landia, Inc

Energy-efficient solutions, efficient products and a focus on development

Landia uses its 90 years of experience to continue to develop new and efficient products and solutions. Together with your company, Landia is aiming for new heights. You get a partner with a strong team of happy employees who focus on what matters most to you: good solutions that solve your task at the lowest possible cost.

The durability is almost legendary. Landia supplied the first mixers for sewage treatment plants in the late 1980s. Many of these have passed the age of 25 – some even 30. And they are still in operation every day. Now that’s truly sustainability!

Constant follow-up, testing and development have meant that we have kept up with the times and today can offer energy-efficient solutions combined with a service life beyond the usual.

As a Danish company, we are subject to strict requirements on the environment and climate, and of course, we comply with these. 

We work hard to find the best solution to our customers’ challenges, whether it is regarding animal welfare, dealing with by-products from food production, increased methane production in biogas plants, dealing with more dry matter in biomasses or reducing troublesome odours from a wastewater plant.

We also work to solve climate challenges in the form of CO₂ impact when handling biomasses, e.g., with transport and conversion of CO₂ to methane.

Landia also looks to the future and participates in development projects such as Power-to-X with the aim of better utilizing energy and reducing the impact on the climate.

RECYCLING FOOD WASTE FROM FISH MORTS USING ANAEROBIC DIGESTION

There are many sources of waste food, and ways to recycle food waste, but one of the most unusual must be to recycle fish morts by anaerobic digestion.

As the world’s population continues to grow so will the amount of this type of waste grow, the main source of fish morts is from the aquaculture of fish, such as salmon and trout and that is very much a growth industry globally.

Therefore, it is quite likely that the anaerobic digestion of fish morts will become commonplace in the future.

Fish morts are simply dead fish which have died during fisheries activites, but the fish that die during fish farming aquaculture activities are the main source which we will discuss here.

Since the Animal By-Products (ABP) Regulations were introduced throughout Europe in the 1990s, it has been much more difficult to use fish mort waste in fishmeal and fish oil production.

In the past fish morts with their highly nutricious content were also used as an ingredient of pet foods, but again ABP Regulations and the concern that pet owner’s may prefer not to give their pets any food derived from an unpleasant sounding source, have led to a decline.

Changes in the formulation of pet food products have also contributed. In addition, the old fall-back of landfill disposal is not only unsatisfactory to landfill owners who wish to reduce the organic matter sent to landfill (reduce possible landfill odours etc), but UK Landfill Tax makes it prohibitively costly.

Fish morts would preferably be incinerated if there are suitable facilities not too far away from their source, but again the cost is high. Just like any material which is more abundant than the market to use it, fish waste has little or no value.

It therefore, in principle makes a wonderful low-cost feedstock for anaerobic digestion, as long as the AD Plant is licenced to accept and process ABPs.

So, what could be better than to add it to the feed materials of a Scottish AD plant.

In the following Press Release it is explained how Landia, which is one of the world’s leading manufacturers of chopper pumps, propeller mixers, aeration systems and advanced process equipment, is doing just that.

Fish Feedstock Used for AD as Landia Wins Important New Contract
Landia has been awarded an important new turnkey contract in Scotland to supply pumping, mixing, ensiling and pasteurization equipment for fish morts (food waste) that will be utilised as feedstock for an expanding AD plant. The 8m³ pasteurizer, which is fitted with Landia’s side-entry propeller mixer and equally robust dry-installed chopper pump will process the fish morts in accordance with ABP (Animal By-Products) regulations, fully approved by vets.

A 10m³ ensiling tank with an 18.5kW stainless steel long shaft chopper pump will also be designed, manufactured, installed and commissioned by Landia’s team of skilled engineers. This unit recirculates and blends the fish morts into a smooth purée, before being discharged into the pasteurizer. With the fish morts suitably mixed, pumped and pasteurized at 70 degrees Celcius by the Landia equipment, gas yields are forecast to increase significantly at the AD plant.

As well as its ensilers and pasteurizers, Landia also supplies the acclaimed GasMix AD digester mixing system and has just launched BioBuster, a new, non-pumping pre-treatment unit for AD feedstocks with high dry matter content. Engineered to last, Landia’s AD and food waste/fish processing waste equipment is based upon a wealth of experience, developed since the company’s first agricultural slurry pump when it began trading in 1933, going on to create the world’s first chopper pump in 1950.