# Process Lines from GEA Westfalia Separator for the Production of Food Grade Fish Oil

Separation. Solution . Success. 

### Mechanical Separation / GEA Westfalia SeparatorThis process line has been designed for the recovery of high quality fish oil. The complete line can be installed in a special con

tainer suitable for food grade production or delivered pre- monted on a stainless steel frame. All equipment is ready installed, connected, cabled and tested.
For the recovery of food grade fish oil following parameter are essential: Fresh raw material in food grade quality Sanitary process equipment, cleanable Permission for the recovery of food Based on this pre- conditions Westfalia Separator has developed a process for the recovery of food grade fish oil for small capacities.
All equipment coming into contact with product will be in stainless steel. A CIP system ensure a constant quality of the end products in food grade quality. The process has been set up so that very gentle proc

ess conditions can be used for the processing of the fish oil. Consequently the process temperature can be reduced down to 45 °C so that an outstanding oil quality can be achieved. 

### During the past decades fish oil has turned from the low value bulk products into a high value oil. Consequently the reqiurements for the fish oil quality is changing as well. 

# Low Temperature Fish Oil Processing Line

2 GEA Westfalia SeparatorACD 205 ACD 305 Capacity salmon guts 1,2 t/h 3,0 t/h Capacity salmon waste 0,8 t/h 2,0 t/h Power consumption approx. 20 kW approx. 30 kW Heating (hot water) 60/40 kW 150/100 kW Container Size 30 foot container 40 foot container 

### Design features Complete installed unit Inside a container or mounted on a skid Food grade processing of fish oil Cleanable process (CIP) Low temperature process for outstanding oil quality High grade of automatisation Modular design for optional features 

### Additional modules/ equipment Offal reception and grinding Fish meal dryer and packing CIP- unit Storage tanks Locker room Oil

3-Phase Decanter

De-oiled fish pulp

3 GEA Westfalia SeparatorWerner-Habig-Straße 1 · 59302 Oelde (Germany) Phone +49 2522 77-0 · Fax +49 2522 77-1794 ws.process@geagroup.com · www.westfalia-separator.com Mechanical Separation 

### GEA Westfalia Separator The information contained in this brochure merely serves as a non-binding description of our products and is without guarantee. Binding information, in particular relating to capacity data and suitability for specific applications, can only be provided within the framework of concrete inquiries. Printed on chlorine-free bleached paper

Printed in Germany Subject to modification 

### Beverage Technology
Dairy Technology

Renewable Resources

Chemical / Pharmaceutical Technology

Marine
Energy

Oilfield

Fluids & Water
Engineering
Second Hand Machinery

Cross-Flow Filtration with Ceramic Elements
Original Manufacturer ServiceThe processing of very small capacities requires an adaption of the traditional whole fish process. GEA Westfalia Separator has modified the process accordingly toensure an economic production. Historically, this process has been deve loped especially for raw materials which are difficult to process in expeller presses. For small capacities the raw material is at first carefully minced. The subsequent cooker coagulates the protein whilst the fat

containing cells are gently disintegrated so that the oil is released. The cooked raw material is then directly fed to the decant

er. For small capacities the cooked raw material is fed to a 3

- phase decanter which separates the suspension cleanly into solids, water and oil. The separated solids are directly conveyed to the dryer. The stick

- water from the decanter is evaporated before it is dried and processed into fish meal. As the oil phase may still contain small resi

dues of free water and solids, a polishing separator is recommended down stream to remove even those tiny impurities. The result is purest fish oil. For bigger capacities the cooked raw material is fed to a 2

- phase decanter. The recovered press water is then de

- oiled by a 3

- phase self

- cleaning separator before it is evaporated and dried. Raw material

Mincer

Cooker

Solids 3-phase decanter Oil polishing separator

Evaporator

Dryer

Fish meal Fish oil 

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# Fish Meal and Fish Oil Recovery – The Whole Fish Process for Small Capacities

GEA Mechanical Equipment / GEA Westfalia Separator

### 2-phase decanters for clarification 3-phase decanters for separation

Separators for oil polishing Complete decanter range from 0.5 – 30 m3/ h Customized solutions Robust design, particularly designed for hot operation processes Sophisticated wear protection for long operation lives Special bowl concepts for maximum throughput and clarifying efficiency Westfalia Separator ® vari pond ® for always optimal separation results even with different feed conditions Made in Germany – Quality assurance system, CE conformity, DIN EN ISO 9000:2000 and 14001 Complete decanter range from 0.2 – 15 m3/ h Customized solutions Robust design, particularly designed for hot operation processes Sophisticated wear protection for long operation lives Special bowl concepts for maximum throughput and clarifying efficiency Westfalia Separator ® vari pond ® for always optimal separation results even with different feed conditions Made in Germany – Quality assurance system, CE conformity, DIN EN ISO 9000:2000 and 14001

Complete polisher range from 0.5 – 30 m3/h Customized solutions Optimized disc stack for top fish oil quality Minimum number of parts and seals for minimum wear Very service

- friendly flat belt drives Assembly

- friendly design for fast service Low vibration machine installation for an easy integration into the process Made in Germany – Quality assurance system, CE conformity, DIN EN ISO 9000:2000 and 14001

Werner-Habig-Straße 1 · 59302 Oelde (Germany) Phone +49 2522 77-0 · Fax +49 2522 77-1794 www.westfalia-separator.com 

## GEA Mechanical Equipment 

# GEA Westfalia SeparatorThe information contained in this brochure merely serves as a non-binding description of our products and is without guarantee. Binding information, in particular relating to capacity data and suitability for specific applications, can only be provided within the framework of concreteinquiries. Westfalia®, Westfalia Separator®andvaripond®are registered trademarks of GEA Westfalia Separator GmbH. Printed on chlorine-free bleached paper · Printed in Germany · Subject to modification · www.kabutz.de9997-1737-000/0810 EN

# Small Capacity Plants from GEA Westfalia Separator for the Fish Industry

Mechanical Separation / GEA Westfalia Separator Separation. Solution. Success.GEA Westfalia Separator 2 The rivers, lakes and oceans of the world are the source of one of the most important foodstuffs. Fish is a valuable supplier of protein and other essential nutrients. However, today’s industrial fish processing industry is facing new challenges. The conventional processes for the recovery of fish meal and fish oil were designed for processing large fish quantities of up to 200 t/h. However, in times when resources are in increasingly short supply, processes must be found which can also efficiently process small quantities of fish.
Consequently, GEA Westfalia Separator has developednew processes for the fish industry which are worthwhile investing in particularly when proc essing small quantities. The new processes, which are based on the traditional three-phase process, have been simplified so that now 2 – 4 t/h can be processed without difficulty while additionally increasing the added value of the complete process.
GEA Westfalia Separator can draw on the experiencegained over a period of over 110 years making it a market leader in centrifugal separation technology. The spectrum covers application-oriented, innovative solutions in machine technology and process engineering for a wide range of applications in the chemical and pharmaceutical industry, dairy and beverage technology, the starch industry, environmental technology, mineral oil technology and oils and fats recovery. The first separator for the recovery of fish oil was commissioned back in 1929. Since then, GEA Westfalia Separator has developed, manufactured and delivered more than a thousand centrifuges for the fish oil industry while at the same time successfully and innovatively optimising the processes. 

# High Profit with Small Capacities

Fish specialitiesGEA Westfalia Separator 3 Low expenditure, high benefit
The offal obtained during the filleting of, for example, salmon still contains valuable oil and utilizable solids. For this reason, GEA Westfalia Separator has designed the new small installation for the recovery of fish oilfrom offal. The fish offal is first gently crushed to disintegrate the fat-containing cells and very carefully coagulated in the heating tank. This is important to maximize the oil yield and to obtain optimum quality of theend product. The coagulated raw material is subsequently separated into solids, oil and an aqueous phase in a 3-phase decanter. This process can do without presses to separate the solids. Therefore, no expenses are incurred for purchasing and operating those presses. The oil phase from the decanter contains small quantities of free water and solids and can be polished in a separator. The solids from the separator can either be processed to fish meal in suitable driers or can be utilized untreated as raw material for ensilage plants. The aqueous phase or stick water from the decanter is concentrated in evaporators due to the substantial proportion of dissolved solids and processed to fish meal together with the solids. The compactness and low number of process stages make this process ideal for processing small quantities. Raw material

Metal detector

Processing fish offal Mincer

Steam

Condensate

Turbid oil Heating tank Steam

Solids

Stickwater

Clean oil Clean oil

Oil polishing

SludgeRecovering high-grade proteins
Highly soluble and low-fat protein hydrolyzates can be recovered with this enzymatic process. This turns them into an extremely high-grade additive for the food industry and also an attractive fodder in aquaculture, particularly for breeding young fish.
Virtually all fish raw materials can be processed to hydrolyzates. However, the most suitable are offal from salmon, trout or remains from canned fish or Surimi production.
The enzymatic treatment of the crushed material takes place in a reactor in which temperature and dwell time can be precisely set. The extremely precise process control is necessary to recover “tailor-made” hydrolyzate. Properties and taste can be individually determined via this control.
After screening off the bones, the liquid phase is sent to the 3-phase decanter. Here, the suspension is separated into oil, solids and protein-containing water. The big advantage of the 3-phase technology is the separation of the insoluble solids and oil in one step.
Only by this means is the highly soluble, low-fat protein retained in the aqueous phase. A high-performance separator then separates the protein from the remaining small quantities of solids and oil. Following evaporation of the water, the concentrated protein is flash pasteurised and spray dried.

Enzyme reaction tank

Hot water

Preheating Enzyme deactivation Preheating Steam Bones to further processing Bone separation

Condensate

Steam Enzyme

Water

Steam Oil phase

Condensate Protein polishing

Oil polishing

Solids Clean oil Cream/oil Protein phase Recovery of protein hydrolyzatesGEA Westfalia Separator 5 Adding value
When producing canned goods in the fish industry, waste water streams are obtained which are heavily loaded with oils and solids. These primarily consist of residues of sauces and vegetable oils which are canned with the fish. As a rule, such heavily contaminated waste water is not directly discharged but rid of the solids in flotation plants. The resultant flotation sludges must be disposed of, whereby the disposalcosts involved are fairly high. To minimize the disposal costs and simultaneously exploit the valuable substances in the waste water, GEA Westfalia Separator offers a newly developed process which converts waste into valuable substances and saves costs. The flotation sludge is collected in an agitator tank and then pre-heated with the aid of a suitable heat exchanger. The hot water phase from the decanter is used for this purpose. With this solution, no cost-intensive external heat generation is required. The oil is released through subsequent coagulation of the proteins in special tanks supplied with live steam. Canning wash water processing Heating tank Washing water from canning plant

Live steam injection

Solids

Clean oil

Sludge Oil polishing Preheating Buffer tank Flotation tank Skimmings

The 3-phase decanter from GEA Westfalia Separator then ensures in one step efficient separation of the solids, oil and the aqueous phase. The latter is subsequently cooled with heat exchangers and fed back into the flotation sludge. The recovered turbid oil, by contrast, is polished with self-cleaning separators and rid of residual impurities such as water and solids. The products recovered in this way can be sold as fodder. The overall effect is a drastic reduction in disposal costs.GEA Westfalia Separator 6 Minimum oil losses
High g-force for better solids recovery High lambda for better separation Long retention time

Low maintenance costs
Heavy duty design Bowl in durable duplex stainless steel Hinged hood for easy and fast inspections Low differential speed for less wear and tear Super resistant and long lasting hard facing of scroll flights Soft stream elongated distributor with simple wear plates Smooth operation

Low operation costs
Energy saving flow system Continuous and automatic operation Electronic scroll overload control system CD 205 Motor rating: 7.5 kW

CD 305 Motor rating: 15 kW

CC 450/458 Motor rating: 30 kW

CA 501 Motor rating: 35 kW 

# Decanters and Separators for Efficiently Processing Small Capacities in the Fish Industry

Decanters at a glanceGEA Westfalia Separator 7 Higher effective capacity
Continuous feed even during cleaning cycle High g-force No downtime

Minimum oil losses
Patented Westfalia Separator ® hydro stop system for high concentrated solids discharge

Low maintenance cost
Simple bowl design for lower cleaning frequency Newly designed clutch with stronger clutch shoes for longer lifetime

No supervision required
Equipped with a PLC system for optimal control of cleaning cycle Separators at a glance

OSD 10 Motor rating: 5.5 kW

OSD 30 Motor rating: 11 kW

OSD 50 Motor rating: 22 kWWerner-Habig-Straße 1 · 59302 Oelde (Germany) Phone +49 2522 77-0 · Fax +49 2522 77-2828 ws.process@geagroup.com · www.westfalia-separator.com Mechanical Separation 

### GEA Westfalia Separator Beverage Technology
Dairy Technology

Renewable Resources
Chemical / Pharmaceutical Technology

Marine
Energy

Oilfield

Fluids & Water
Engineering
Second Hand Machinery

Cross-Flow Filtration with Ceramic Elements
Original Manufacturer Service

The information contained in this brochure merely serves as a non-binding description of our products and is without guarantee. Binding information, in particular relating to capacity data and suitability for specific applications, can only be provided within the framework of concrete inquiries.
Westfalia ® and Westfalia Separator ® are registered trademarks of GEA Westfalia Separator GmbH. Printed on chlorine-free bleached paper

9997-1087-000/0909 EN Printed in Germany Subject to modification