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Ultrafiltration Plant (Spiral Wound Membranes)

Ultrafiltration Plant (Spiral Wound Membranes)

Highlights and application:
Ultrafiltration (UF) is a well proven technology
Ultrafiltration (UF) is a well proven technology
offering a wide range of opportunities for modern
dairy processing. The spiral wound UF SW system is
characterised by:
-Low plant investment
-Low space requirements
-Easy membrane change
-Optimal for low to medium viscosity products
The SW membrane element has a unique design,
where a large membrane area is wound into a compact
element. SW elements are available with:
-Various diameter (3.8-8 inches)
-Various lengths (38-40 inches)
-Various feed spacers (20-130 mil)
-Special design for high pH/high temperature CIP
-Membranes with various MW cut-off (1,000 – 100,000)
The membrane elements are fitted into stainless steel
housing to form a module, and a number of modules
are built into a plant. Based on proven, modular
components, each plant is customised to fit the
individual application. Further, the plant design allows
for access to maintenance of all vital parts as well as
for future cost effective plant modifications. UF plants
with SW membrane elements can be supplied with
any type of process automation ranging from a simple,
manual to a fully automatic system, integrated in the
overall factory control system.
Typical applications of UF SW systems within the Dairy
Industry are as follows:
-Whey Protein Concentrate (WPC)
-Whey Protein Isolate (WPI)
-Milk Protein Concentrate (MPC)
-Milk protein Isolate (MPI)
-Protein Standardization for Cheese Production-
-Cheese :Feta, Domiati, Queso Fresco etc.
Ultrafiltration Plant (Spiral Wound Membranes)
Ultrafiltration Plant (Spiral Wound Membranes)
Ultrafiltration Plant (Spiral Wound Membranes)


The required utilities for running the UF plant are as follows:

-Power supply: 3x400 V AC, 50 Hz (Other voltage and frequencies are also available upon request)
-CIP water supply: 2-3 bar(g) @ 10-50 °C
-Cooling water supply: 2-3 bar(g) @ 10-50 °C
-Ice water supply: 2-3 bar(g)@1-2 °C
-Shaft seal water supply: 2-3 bar(g) @ 10-50 °C
-Steam pressure: 2-3 bar(g)
-Air supply: 6 bar (g) Instrument air, oil-free
-Cleaning: Membrane cleaning detergent for manual or automatic dosing (Henkel or Diversey or Novadan)


The UF plant is designed fully automatic and from HMI all of the operation parameters and program sequences can be controlled and monitored. Also, all of the necessary process alarms are already incorporated into the program. The operation presence is only required during operation as surveillance The following process sequences are realized automatically:
-Start up/ Recirculation/Ready for product
-Pre concentration
-Re circulation of product
-Cleaning in place (CIP)


UF Plant usually includes the following components:
-Closed balance tank including level transmitter, floater and
CIP device
-Valve manifold including set of change over valves and automatic butterfly valves
-Feed pressure system including feed pump, flow
transmitter and in line filter
-UF Modules and filters
-Re circulation loops each including circulation pump, tubular heat exchanger, pressure and temperature transmitters, flow indictors and sampling device
-Retentate/Permeate system including modulating valves,
flow transmitter, permeate pump
-Equipment for flush water including shut off valves and
adjustment valves
-Equipment for steam and cooling water including shut off
valves and non-return valves
-Set of pipes and fittings
-Set of shut off valves for water balance tank
-Set of instruments such as temperature and pressure transmitters.
-Stainless steel control panel including PLC, HMI, power supply, solenoid valves, motor starters, MCC etc.
-All of the UF plants are tested in our factory before delivery
-The UF Plant Panel/Programme ensures the following are realized:
1-Automatic temperature control in the loops
2-Automatioctotal solid ration control in the final
3-Recording feed and retetnate flow and each loop
temperature as long as long as the memory of HMI
allows it


UF plant can include the following options:
-Automatic CIP dosing unit
-Refractometer for online measurement/control of final product brix
-In line cartridge filters for soft water input
-In line filter for product with 10 micron filter
-Mix proof product manifold valve on feed, retentate and permeate inlet/outlet
-Conductivity transmitter for CIP dosing
-Automatic shut off (Isolation) of each loop to cut water consumption during CIP
-Flush water seal re circulation system. Reducing water circulation
-UPS (Uninterrupted Power Supply)
-Air cooler for Control Panel


Standard UF Plants with fixed capacities which are
manufactured by this company are as follows:
Feta Cheese:5000-15000 Lit/hr
Whey Protein Concentrate (WPC): 5000-30000 Lit/hr
Milk Protein Concentrate (MPC): 5000-30000 Lit/hr
Higher capacities are available based upon request and can be tailor made.