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Hatching Systems 3 x vertical incubator cabinets with 16 trays — capacity for app. 360.000 eggs/incubator.

Recirculation flow 3 x 112 liters/min as per manufacturer’s specification.

TREATMENT

Main Pumps 3 x main pumps (Grundfos or similar) 2 duty +1 in storage

Mechanical/Biological Filtration 2 x PBFS-S bead-filter with Enhanced Nitrification (EN) media for simultaneous fine particle

removal and nitrification

Carbon Dioxide degassing: 2 x Trickling system over pump sump

UV-C treatment 3x MRI—220 PP UV for 100% flow treatment (approx. 80 mJ/cm2 @ UVT>76)

Oxygen: 2 diffuser systems in pump sumps incl. regulation via SCADA. Separate oxygen probes

installed for each hatching system, but central oxygen regulation in sump.

Necessary oxygen cabinets with magnetic valves and rotameters for oxygen dosing.

pH Control Monitoring by 2 x 2 pH probes in pump sump incl. in SCADA. Regulated by dosing pumps for

NaOH addition from central tank.

SCADA Complete incl. temperature regulation

Bio-Security Receiving Bay Area for receiving eggs with stainless steel system for disinfection and transfer into clean

zone in hatchery.

The hatchery treatment unit is split into two separate units, enabling operation under different temperature regimes for

manipulation of hatching rates. Water passes by gravity into the pump sumps over 2 trickling systems for degassing and

oxygen diffusers regulate the dissolved oxygen concentration therein. Water is then pumped through the Bead-filters for

simultaneous nitrification and fine solids removal and directed into the hatching trays.

Sufficient capacity is installed to enable operation of all three cabinets at once but on two treatment loops, i.e. two

temperature regimes are possible only as agreed, but this enables a high degree of flexibility in manipulating the egg batches

for hatching.

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Culture Tanks

Recirculation flow

TREATM ENT

Main Pumps

Mechanical Filtration:

Biological treatment:

Carbon Dioxide degassing:

Blowers:

UV-C treatment

Oxygen:

pH Control

SCADA

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lJ Ål. i.2 x 30 m3 fiberglass tanks (Ø6m x 1,05mWL)

135 m3/hr (2,25 x tank volume/hour)

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2 x main pumps (Grundfos or similar) 1 duty + 1 standby.

2 x 20 micron drum filters, AISI 304

1 x IAA patented and self-cleaning CLEARWATER Low-Space Bio—Reactor (12 m3 volume).

Peak feed capacity of 55 kg feed/day @ 56% protein, FCR 0,8 and temp. 10 °C installed.

Central cascade with crown nozzles in pump sump

2 x Bio-Reactor blowers (1 duty +1 standby) incl. sound cabinets, non—return valves, manifold

and frequency converter.

2x MRS-220 PP UV — approx. 60 mJ/cmz. Tot. capacity: 135 tr (100% flow) @ UVT >76.

1 x oxygen cone, 30 m3/hr + emergency oxygen diffuser systems in all tanks.

Necessary oxygen cabinets with magnetic valves and rotameters for oxygen closing

Regulated by closing pump for NaOH addition from central tank and controlled by 2 x pH

probes via SCADA

Complete incl. temperature control

The Fry/First feeding RAS unit is placed underneath the hatchery system, which facilitates movement of hatched fry to the

system.

Water flows by gravity to the central treatment unit that consists of 2 x 20—micron mesh drum filters, followed by UV

sterilizers on the full flow and into the biological treatment in IAA’s patented Moving Bed Bio-Reactor for nitrification.

Water from the biofilter overflows onto the central C02 degassing cascade on top of the pump sump, which operates with

crown nozzles and under a slight vacuum for removal of both C02 and excess N2 gas.

From the pump sump, water is pumped back into the tanks. Oxygen in the fish tanks is monitored continuously and regulated

by a separate pressurized oxygen cone upon demand.

pH regulation is undertaken by 2 x pH probes for safety and adjusted by NaOH addition from a central pallet tank.

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Culture Tanks

Recirculation flow

TREATMENT

Main Pumps

Mechanical Filtration:

Biological treatment:

Carbon Dioxide degassing:

Blowers:

UV-C treatment

Oxygen:

pH Control

SCADA

Feed System

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7 x 225 m3 fiberglass tanks (ØlOm x 2,86mWL)

2111m3/hr (1,34x tank volume/hour, HRT 45 min.)

2 x main low-head propeller pumps (Lykkegaard) 2 duty incl. spare parts package.

2 x 40 micron drum filters, AISI 304

1 x IAA patented and self-cleaning CLEARWATER Low-Space Bio-Reactor (186 m3 volume).

Peak feed capacity of 700 kg feed/day @ 46% protein, FCR 1 and temp. 12 °C installed.

Central cascade with crown nozzles in pump sump + aeration around drum filters. Additional

decentralized C02 degassers installed on all tanks.

2 x Bio—Reactor blowers (1 duty +1 standby) incl. sound cabinets, non—return valves, manifold

and frequency converter.

2 x Decentralized degassing blowers (1 duty +1 standby) incl. sound cabinets, non—return

valves, manifold and frequency converter.

1x MR12-220 PP UV — approx. 45 mJ/cmz. Capacity: 180 m3/hr (8% main flow) @ UVT >76.

2 x oxygen cone, 90 m3/hr + emergency oxygen diffuser systems in all tanks.

Necessary oxygen cabinets with magnetic valves and rotameters for oxygen dosing

Regulated by dosing pump for NaOH addition from central tank and controlled by 2 x pH

probes via SCADA

Complete incl. temperature control

Type as Agrisys feed system incl. weighing cells + 1 betten—type feeder per tank. Feed silos

and connections not included as this remains to be determined.

Water flows by gravity to the central treatment unit that consists of 2 x 40—micron mesh drum filters, followed by biological

treatment in lAA's patented Moving Bed Bio-Reactor for nitrification.

Water from the biofilter overflows onto the central CO; degassing cascade on top of the pump sump, which operates with

crown nozzles and under a slight vacuum for removal of both C02 and excess N2 gas.

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INTER AWA ADVANCERELll'ClllklllOll sxslcms for fishfin‘ming sint":- NFS

- Expcrllsu in Mox ing Bed Technology since 1093

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I forbindelse med leverance af et landbaseret RAS anlæg (Recirkuleret Akvakultur System) for produktion aflaksesmolt

til Fredrikstad Seafoods, vedlægges hermed en kort beskrivelse af medhørende anlæg for behandling af slam fra det

interne vandrensningssystem.

Fra RAS anlægget ankommer spulevandet fra tromlefiltrene til et buffer opblandingskar, hvori der er en omrører som

opretholder en homogen og ensartet væskesammensætning. Fra buffertanken ledes vandet til et mindre kammer hvor

der tilsættes Ferriclorid (FeCLa) — til udfældning af fosfor. Væsken strømmer herefter igennem en statisk mixer, hvor

igennem der doseres polymer for flokkulering af slammet.

Væsken kommer herefter til et blandekar, hvor en langsomtgående omrører holder flokkuleringen igang.

Slammet fødes med gravitation ind i en KDS slamafvander, hvor slammet skånsomt separeres ud over en række

vertikale riste med 1mm afstand og løftes og bevæges fremad ved hjælp af en række ellipseformede diske.

Det afvandede slam vil med korrekt dosering af polymer reducere slamfraktionen til 8-10% tørstof, der samles i et

passende reservoir for opbevaring.

Rejektvand efter slambehandling ledes til recipienten via RAS anlæggets UV sterilisering for udløbsvand.

Stock column

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Grundet den skånsomme proces er rejekt vandet mindst muligt påvirket afN og P, som forbliver i Slammet.

Systemet udmærker sig i forhold til f.eks. båndfiltre ved ikke at skulle bruge spulevand.

En visual præsentation kan findes på følgende link: See. htt s: www. outube.com watch?v= UOXS S 3

KRUGER Q VEOLIAMass-balance for the WWTP with 100-micron from the preliminary design:

Nordic Aquafarms - Fredrikstad - Water water treatment

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In the detailed project the Hydrotech filter has been changed from a loo-micron cloth to a 40-micron

cloth. This gives a much better filtration and more secure outlet values.

Below the mass-balance with 40-micron cloth:

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Kr'Liger A/S / Haslegårdsvænget 18 / 8210 Aarhus V / DenmarkCVR: 57446412 - www.kruger.dk

.

Reason forchan in desi n:

At the preliminary design with loo-micron cloth I have 104 mg SS/l. With an expected content and

1,0-1,5 % P in the 55 Iwill have get 1,0-1,5 mg P/I bound in the suspended matter. To this l must add

soluble P = 0,2-O,5 m P/l so total will be:

loo-micron cloth - Theoretical outlet:

Total P = P (so/ids) + P(so/ub/e) = 1,0-1,5 mg P// + 0,2-0,5 m P// = 1,2 -2,0 mg P/I.

It was an agreement between KRG and Fredrikstad Seafoods to design for a 90 % reduction of

Phosphorous in the WWTP. With an inlet value of about 15 mg P/l we would go for an Outlet =

1,5 mg P/l, so we were very close to the theoretical values with the lOO-micron cloth.

My solution was to get a better filtration with 40-micron cloth. With this I will get expected values:

40-micron cloth -Theoretical outlet:

Total P = P (solids) + P(solub/e) = 0,5—0, 75 mg P// + 0,2-0,5 m P// = 0,7 -1,25 mg P/l.

*Note from Kim Sundmark (Senior Procesingeniør, Produktchef, KRUGER A/S) explaining the changes

in design which reduced the discharge values.

Kriiger A/S / Haslegårdsvænget 18 / 8210 Aarhus V / DenmarkCVR: 57446412 -www.kruger.dk