Fish Industry | Landia 2026

Fish Industry & Aquaculture

Pumping Solutions for Fish & Aquaculture

Proven Aquaculture Solutions

Landia has supplied pumping solutions to the fish and aquaculture industry for more than 30 years, serving both RAS facilities and fish processing operations.

Our equipment is engineered for stable, continuous handling of waste products, sludge and fish silage.

Combined with long service life and professional global after-sales support, Landia ensures reliable operation and low total cost of ownership.

2

Fish Industry & Aquaculture

www.landiaworld.com

Contents Pumping Solutions ............... 4

Fish Silage Solutions............. 14

•

Stainless Steel Pumps - Dry Installation...................................... 5

•

Why Fish Silage Matters...................... 15

•

PowerEnsiler System..............................16

•

Stainless Steel Pumps - Submersible........................................... 6

•

Key Features.............................................. 17

•

Bilge Pumps................................................7

Case Studies............................ 18 Mixing Solutions.......................8 •

Submersible Mixers................................ 9

•

Side-entry Mixers.................................... 9

•

Flowmakers...............................................10

•

Fish Morts to Biogas - Scotland................................................. 18

•

PowerEnsiling Systems - Norway....................................................20

•

Carp Morts - North Macedonia............................... 22

RAS Water Circulation.......... 11 Sludge Treatment ..................12 •

Hygienisation .......................................... 13

Fish Industry & Aquaculture

www.landiaworld.com

3

Unique Knife System.

No Clogging.

Pumps that last.

The fish industry is tough on pumps. Liquids are aggressive, materials are demanding, and downtime costs money.

Landia pumps are built in stainless steel to handle harsh conditions and keep wear to a minimum.

An integrated knife system at the pump inlet cuts solids before they enter the pump, eliminating the risk of clogging.

The result is reliable performance, less maintenance, and uninterrupted production.

4

Fish Industry & Aquaculture

• Stainless steel pump components for long service life • Resistant to low-pHliquids such as fish silage • Integrated knife system • No risk of clogging • Less maintenance and downtime

www.landiaworld.com

Stainless Steel Pumps for Dry Installation.

Two types of pumps are available:

Close-coupled MODEL: MPTKR-I Motor sizes:

1.1 - 22.0 kW

Pump sizes:

65, 80 & 105 mm

Capacity:

up to 300 m³/h

Head:

up to 22 m

Material:

AISI 316

Seals:

Double mechanical seals

Long Shaft Pump MODEL: MPTKLR-I

Fish Industry & Aquaculture

Motor sizes:

5.5 - 22.0 kW

Pump sizes:

80 & 105 mm

Capacity:

up to 300 m³/h

Head:

up to 22 m

Material:

AISI 316

Seals:

Double mechanical seals

www.landiaworld.com

5

Submersible Stainless Steel Pumps

Uniform Silage MODEL: DGR-I Designed for fish silage, the submersible DGR-I pump features an efficient knife system that breaks down fish waste to ensure consistent mixing and a homogeneous silage.

6

Fish Industry & Aquaculture

Motor sizes:

2.2-22.0 kW

Pump sizes:

65, 80 & 105 mm

Capacity:

up to 300 m³/h

Head:

up to 22 m

Material:

AISI 316

Seals:

Double mechanical seals

www.landiaworld.com

Bilge Pumps MODEL: DG-I All Landia bilge pumps feature an integrated knife system at the pump inlet.

Motor sizes:

2.2-22.0 kW

Pump sizes:

65, 80 & 105 mm

Capacity:

up to 300 m³/h

Less downtime keeps crews focused on fishing – not equipment issues.

Head:

up to 22 m

Material:

Cast iron

Also available in stainless steel AISI 316.

Seals:

Double mechanical seals

Debris is cut before entering the pump, preventing clogging and ensuring reliable, uninterrupted pumping.

Fish Industry & Aquaculture

www.landiaworld.com

7

Built to Mix. Designed to Last.

Mixing with no limits.

Landia offers one of the widest ranges of mixers and flowmakers in the industry, designed to suit a broad variety of processes and operating conditions.

The extensive product program allows each solution to be matched precisely to the application.

With motor sizes from 1.1 kW to 30 kW and propeller diameters from 300 mm to 2500 mm, Landia mixers cover everything from light agitation to heavy-duty mixing.

Solutions are available for both new installations and retrofit projects.

8

Fish Industry & Aquaculture

• One of the widest ranges of mixers and flowmakers • Motors from 1.1–30 kW • Propellers from 300–2500 mm • For mixing, agitation, and circulation • Submersible or dry installation

www.landiaworld.com

Designed for demanding mixing in the fish industry and aquaculture.

Available for submersible or dry installation.

Submersible MODEL: POPR-I 300

Motor sizes:

3.0-22.0 kW

Propeller rpm:

300 rpm

Material:

AISI 316

Option:

Explosion-proof motor

Side-entry Mixer MODEL: POPTR-I

Fish Industry & Aquaculture

Motor sizes:

3.0-22.0 kW

Propeller rpm:

300 rpm

Material:

AISI 316

Option:

Explosion-proof motor

www.landiaworld.com

9

The Right Flow.

Better Fish Welfare.

Flowmaker MODEL: POPLR-I

10

Motor sizes:

1.1-7.5 kW

Propeller diameter:

1700-2500 mm

Propeller rpm:

19-47 rpm

Material:

AISI 316

Fish Industry & Aquaculture

www.landiaworld.com

RAS 2020 Grow-out Section.

In the grow-out phase, biomass and operational loads are at their highest.

RAS 2020 emphasizes stable operation, reliable water movement, and uniform water quality to ensure fish welfare and production security.

Landia flowmakers create smooth, steady water movement that keeps fish healthy and tanks clean – even at high stocking densities.

Fish Industry & Aquaculture

The standard highlights the need for robust, proven equipment with high uptime, easy maintenance, and materials that withstand seawater – and the lowest possible power consumption.

The POPLR-I is a low-speed flowmaker engineered for efficient circulation of large water volumes, delivering maximum flow with minimal power consumption.

www.landiaworld.com

11

Hygienisation – A Key Step in Sludge Treatment

12

Fish Industry & Aquaculture

www.landiaworld.com

In salmon farming, both offshore pens and onshore facilities generate organic sludge from uneaten feed, faeces and biofilm.

This sludge can be high in nutrients and solids, and must be handled carefully to avoid environmental impact and meet regulatory requirements.

Fish Industry & Aquaculture

When aquaculture sludge is used for biogas production or recycled as fertiliser, hygienisation is required to meet regulatory and biosecurity standards.

By integrating Landia hygienisation into the process line, aquaculture sludge can be transformed from a regulatory challenge into a valuable resource.

www.landiaworld.com

13

Fish Silage from Byproducts and Mortalities 14

Fish Industry & Aquaculture

www.landiaworld.com

Fresh Fish by-products

Processed fish silage • ready for use

Why fish silage matters Good biosecurity is essential for healthy and efficient aquaculture.

Dead fish and by-products must be removed quickly and handled safely to avoid the spread of disease.

By converting these materials into fish silage, the risk of infection is reduced while creating a stable and usable product.

• Reduces the risk of disease spread • Improves biosecurity in aquaculture systems • Converts waste into a stable and valuable product • Allows safe storage and transport of organic material

What is fish silage used for?

Category 2:

Fertilizer

Category 3:

Biogas

Fish Industry & Aquaculture

Animal feed

Fish oil

www.landiaworld.com

Pet food

15

One integrated system from a single supplier The PowerEnsiler is delivered as a complete Landia solution, with all critical components manufactured by Landia based on decades of experience with silage production and storage systems. This ensures full compatibility and clear responsibility throughout the project.

The system can be supplied with tanks in polyethylene (PE) or acid-resistant stainless steel AISI 316, including ATEX-approved configurations. Tank sizes from 1 m³ to 25 m³.

If the silage is intended for biogas production, a dedicated hygienisation solution is available.

16

Fish Industry & Aquaculture

Why this matters: • One supplier, one responsibility • Stainless steel or PE (polyethylene) • Available in ATEX configuration

www.landiaworld.com

PowerEnsiler: Key Features • Flexible filling via hopper, flange, or inspection hatch 1

3

2

5

4

142

A

1980

7

8

9

B

420

C

6

225

• Available in PE B or AISI 316, with ATEX-approved options

B

• Integrated Landia chopper A and knife system, no external grinders

Ø2100 D

A

• Automatic acid dosing for stable pH and silage quality E

B-B (1:20)

F

• Direct flow ensures fast ensiling and consistently high silage quality G

H

1

2

3

4

Fish Industry & Aquaculture

5

6

www.landiaworld.com

7

8

9

17

We also have References.

Fish Morts to Biogas LOCATION: Scotland

Challenge A Scottish anaerobic digestion operator wanted to introduce fish morts as a new feedstock. This required compliant pretreatment, ABP-approved pasteurisation and reliable transfer to the digester.

Solution Landia delivered a complete turnkey system including:

• 10 m³ PowerEnsiler equipped with an 18.5 kW stainless steel chopper pump • 8 m³ BioChop pasteuriser for heat treatment of the silage • Full ABP compliance (70°C), veterinary approved

18

Fish Industry & Aquaculture

www.landiaworld.com

If you think we promise too much, here are some references from the fish industry.

The fish morts are macerated and continuously recirculated into a homogeneous purée, pasteurised, and safely pumped onward to the biogas digester.

Result • Increased gas yields • Stable and reliable handling of a difficult feedstock • Single supplier responsible for design, installation and commissioning This is an example of a hygienically safe method for disposing of dead fish from aquaculture, while at the same time demonstrating that they can ultimately be used for the production of renewable biogas.

Fish Industry & Aquaculture

www.landiaworld.com

19

Complete PowerEnsiler System LOCATION: Norway

Challenge A large Norwegian company required complete PowerEnsiler systems for two separate facilities. The solution needed to include full process control, safe acid dosing and reliable storage handling.

Solution Landia delivered complete systems for both plants, including PEHD process and storage tanks, chopper pumps and integrated control systems.

Result • Efficient and controlled ensiling process • Safe and accurate acid dosing • Reliable pumping and storage handling 20

Fish Industry & Aquaculture

www.landiaworld.com

First Plant 2.5 m³ PowerEnsiler in PEHD, including: • 11.0 kW stainless steel chopper pump • Acid dosing pump • Complete control system 10 m³ PEHD storage tank, including: • 5.5 kW stainless steel chopper pump

Second Plant 1.0 m³ PowerEnsiler, including: • 5.5 kW stainless steel chopper pump with nozzle • Acid dosing pump • Integrated control system 10 m³ storage tank, including: • 5.5 kW stainless steel chopper pump

Fish Industry & Aquaculture

www.landiaworld.com

21

Turning Carp Morts into Controlled Value LOCATION: North Macedonia

22

Challenge

Solution

A land-based aquaculture facility in North Macedonia needed a reliable and hygienic method for handling dead carp and fish trimmings. The goal was to secure processing, controlled acidification and dependable storage – without operational risk.

Landia supplied a complete, integrated PowerEnsiler system designed for efficient maceration, precise acid dosing and stable transfer to storage. The fish material is macerated into a uniform silage, stabilised through controlled acid dosing and pumped safely to long-term storage.

Fish Industry & Aquaculture

www.landiaworld.com

1.0 m³ Stainless Steel PowerEnsiler, including: • 7.5 kW stainless steel chopper pump • Acid dosing pump • Integrated control system 40 m³ PEHD storage tank, including: • 11.0 kW stainless steel chopper pump

Fish Industry & Aquaculture

Result • Safe and compliant handling of fish byproducts • Reduced environmental risk • Reliable, lowmaintenance operation • One supplier responsible for the complete system

www.landiaworld.com

23

Landia A/S Industrivej 2 DK-6940 Lem St. tel +45 97 34 12 44 www.landia.dk

Fish Industry & Aquaculture

www.landiaworld.com