Bacteria removal clarifiers

Bacteria removal clarifiers

Bacteria removal from milk and whey significantly improves the quality of final products.

For instance, in production processes where the milk
temperature does not exceed 50 °C throughout the
entire process – production of raw-milk cheese for
example – a higher product quality is obtained by using
a bacteria removal separator. Undesirable effects often
caused by bacteria, such as acid fermentation and
cheese blowing, are thus avoided.

Furthermore, a reduced shelf life of soft cheese and soft
cheese-based products may also be attributed to the
presence of bacteria. As in the previous case, bacteria
removal greatly contributes to achieving a longer life of
fresh milk and a better quality of whey-derived products,
such as protein drinks.

Used with warm milk/whey – ideally at
55-62 °C – for maximum separation efficiency, they
guarantee the highest bacteria removal rate

OPERATING PRINCIPLES
• The milk/whey is fed under pressure through an enclosed pipe.
• It then fl ows smoothly into the bowl through the feed pipe and the distributor.
• The bacteria and other solids subject to the action of the centrifugal force are forced towards the periphery of the bowl and accumulate in the solids acceleration zone before being automatically discharged at
pre-set intervals.
• The clarifi ed milk/whey rises through the disc stack and up the centripetal pump that discharges it through enclosed piping.
• The concentrate rises above the upper disc to reach the centripetal pump.
• The concentrate can either be discharged or recirculated into the bowl to further concentrate the bacteria for discharge

FRAUTECH SEPARATORS v25 evo-5-4

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Clarifiers: The craft beer clarifier

Clarifiers

Milk clarifi cation is a very important step in milk processing when aiming for high-quality dairy products. The purpose of milk clarifi cation is to improve the milk quality by removing solid impurities such as dirt, straw, and sand particles, somatic cells, and bacteria.

The effective separation of solid impurities is strictly linked to the viscosity of the milk: the lower the viscosity, the higher the separation effect. Hence, for clarification purposes, warm milk is preferred to cold milk and a clarification temperature of approximately 50 °C may be considered as the optimum temperature to achieve maximum efficiency. Nonetheless, especially in those areas where the raw milk quality is questionable, milk clarification can also be performed with cold milk as soon as it arrives at the dairy. In whey processing, the clarifier allows removal of the cheese fines prior to whey skimming. This leads to increased efficiency in cream separation, resulting in higher fat recovery with low and consistent residual fat content in the skimmed whey. A low residual fat content helps to optimize operation of the membrane filtration unit or evaporator that follows

OPERATING PRINCIPLES
• The milk/whey is fed under pressure through an enclosed pipe.
• It then fl ows smoothly into the bowl through the feed pipe and the distributor.
• Thanks to the action of the centrifugal force, the solids are forced towards the periphery
of the bowl and accumulate in the solids acceleration zone.
• The clarifi ed milk/whey rises through the disc stack up to the centripetal pump that discharges it through an enclosed pipe.
• The accumulated solids are automatically discharged at pre-set intervals

FRAUTECH-SEPARATORS-v25-evo-5-2

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WATER DISINFECTION SOLUTIONS

WATER DISINFECTION SOLUTIONS

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Homogenizer

Homogenizer

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Andritz Centrifugal Separators

Andritz Centrifugal Separators

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BECO MEMBRAN H Air Mini

BECO MEMBRAN H Air Mini

BECO MEMBRAN H Air Mini filter cartridges with 0.2 µm hydrophobic single layer membranes made of Polytetrafluorethylene (PTFE) are ideal for sterile air filtration and gas filtration in the food and beverage industry. The filter cartridges remove contaminants in small volumes in applications such as sterilizing fermenter supply air, tank ventilation, or cooling down storage tanks after steam sterilization. The PTFE membrane filter cartridges are available in 1″ and 5″ lengths.

FILTER MATERIAL

Teflon (PTFE)

RETENTION

Absolute (LRV-Values)

MAX. OPERATING TEMPERATURE

176 °F (80 °C)

Core features

ARTICLE NUMBER

PTM02
FILTER MATERIALTeflon (PTFE)
RETENTION RATING0.2  (µm)
RETENTIONAbsolute
LENGTHS1”, 5”
ADAPTER CODES1, 4, 7
CAGESYes
STRUCTUREPleated
PRESSURE HOLD TESTPTM02
TEST PRESSURE IN PSIG AND DIFFUSION RATE PER 10″Bubble point test at 20 °C ≥ 1000 mbar in 60% isopropanol
BACKWASHABILITYYes
CHEMICAL RESISTANCEpH 1 – 14
MAX. OPERATING TEMPERATURE80 °C
MAX. DIFFERENTIAL PRESSURE IN FLOW DIRECTION5.0 bar at 20°C 0.5 bar at 134 °C
STEAM CYCLES50 at 134 °C in 20 minutes

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BECO MEMBRAN H Air

BECO MEMBRAN H Air

Pleated PTFE membrane filter cartridges for sterile filtration of gases and air.

BECO MEMBRAN H Air filter cartridges with 0.2 µm hydrophobic single layer membranes made of Polytetrafluorethylene (PTFE) are ideal for sterile air filtration and gas filtration in the food and beverage industry. The filter cartridges remove contaminants in large volumes in applications such as sterilizing fermenter supply air, tank ventilation, or cooling down storage tanks after steam sterilization. The PTFE membrane filter cartridges are available in 10″, 20″, and 30″ lengths.

FILTER MATERIAL

Teflon (PTFE)

RETENTION

Absolute (LRV-Values)

MAX. OPERATING TEMPERATURE

176 °F (80 °C)

Core features

ARTICLE NUMBERPTC02
FILTER MATERIALTeflon (PTFE)
RETENTION RATING (ΜM)0.2
RETENTIONAbsolute
LENGTHS10”, 20”, 30”
ADAPTER CODES7
CAGESYes
STRUCTUREPleated
PRESSURE HOLD TEST
TEST PRESSURE IN PSIG AND DIFFUSION RATE PER 10″

PTC02
Nitrogen diffusion at 68 °F (20 °C) per 10″ ≤ 11 ml/min at 10.3 psig (0.7 bar) with 60% isopropanol

BACKWASHABILITYYes (20 °C)
CHEMICAL RESISTANCEpH 1 – 14
MAX. OPERATING TEMPERATURE176 °F (80 °C)
MAX. DIFFERENTIAL PRESSURE IN FLOW DIRECTION

72.5 psid (5.0 bar) at 68°F (20 °C)

7.25 psid (0.5 bar) at 273 °F (134 °C)

STEAM CYCLES≥ 150 at 273 °F (134 °C) in 20 minutes

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MEMBRANE WATER DEAERATION MWD

MEMBRANE WATER DEAERATION

The Membrane Water Deaeration (MWD) deaerates water down to a residual oxygen concentration below 10 ppb, using highly efficient hollow fibre membrane modules. Optionally, the water can be cooled down, filtered or sterilized with ultraviolet light. The function of the unit can be monitored and documented by an in-line oxygen analyzer at the outlet of the unit.

The process is used in the brewing, beverage, food and chemical-pharmaceutical industries, wherever water with very low oxygen content is required to ensure high product quality and stability. The system is characterized by high operational reliability as well as low CO2 and energy consumption.

ADVANTAGES AND FUNCTIONS

TECHNICAL DESCRIPTION

Inside the modules, water flows on the outside around the hydrophobic hollow fibres; inside, in counter- current flow, stripping gas flows. The hollow fibres create an extremely large contact surface between the stripping gas and the deaerated water and let gas through, but no water. The generated vacuum on the gas side of approx. 65 mbar sucks the gas mixture from the modules. Because of the high differential partial pressure caused by the vacuum and the strip- ping gas, the oxygen molecules diffuse from the water into the vacuum. Nitrogen or CO2 can be used as stripping gas.

After passing the membrane modules, the water can optionally be cooled down in a plate heat exchanger.

Sensors for oxygen, flow and temperature monitor the proper functioning of the system. By arranging the modules parallel and in series, almost any capacity and residual oxygen value can be achieved.
The unit can be controlled by a local PLC with a touch panel or by a process control system. Designed for high hygienic standards, all common cleaning agents in the beverage and chemical- pharmaceutical industry can be used for CIP cleaning.

TECHNICAL SPECIFICATION

Capacity5 to 1,000 hl/h / 0.5 to 100 m3/h
Residual oxygen content< 10 ppb / 0.01 ppm
CO2 consumption0.6 g/l
CO2 supplymin. 6 barg / ≥99.98% purity
Cooling mediaglycol or ammonia

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HOT WATER DEAERATION HWD

HOT WATER DEAERATION

The Hot Water Deaeration (HWD) deaerates water down to a residual oxygen concentration below 10 ppb. At the same time the water is pasteurized. Optionally it can be cooled down, filtered or pre-carbonised. The function of the unit can be monitored and documented by an in-line oxygen analyzer at the outlet of the unit.

The process is employed in the brewing, beverage, food and chemical-pharmaceutical industries, wherever water with lowest oxygen content is required to assure high product quality and stability. The system is characterized by high operational reliability, high heat recuperation up to 95% and low consumption. Microbiological safety is ensured by the simultaneous pasteurization of the water.

ADVANTAGES AND FUNCTIONS

TECHNICAL DESCRIPTION

The water is heated up to 74 °C in a 3-zone plate heat exchanger by the already deaerated water coming from the stripping column and by low pressure steam. The water is distributed homogeneously to the structured packing at the top of the column. The water slowly flows downwards through the structured packing in counter current flow to the CO2. The CO2 is fed in at the bottom of the column.

A long and intensive contact between water and stripping gas is ensured by the high-performance structured packing. CO2 is dissolved in the water up to a level of 0.5 g/l and at the same time suppresses the oxygen. Optionally, nitrogen can be used as stripping gas. The deaerated water is pumped from the bottom of the column through the plate heat exchanger, where it is cooled by the incoming water. Finally, the water is cooled to 2 °C in the plate heat exchanger by glycol or ammonia.

Sensors for oxygen, level, flow and temperature monitor the proper functioning of the system.
The unit can be controlled by a local PLC with a touch panel or by a process control system.
Designed for high hygienic standards, all common cleaning agents in the beverage and chemical-pharmaceutical industry can be used for CIP cleaning.

TECHNICAL SPECIFICATION

Capacity25 to 1,000 hl/h / 2.5 to 100 m3/h
Residual oxygen content< 10 ppb / 0.01 ppm
Heat recoveryup to 95 %
CO2 consumption0.8 g/l
CO2 supplymin. 6 barg / = 99.98 % purity
Heating mediasteam or hot water
Cooling mediaglycol or ammonia

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HIGH VACUUM WATER DEAERATION V2WD

HIGH VACUUM WATER DEAERATION

The High Vacuum Water Deaeration (V2WD) is a new development by corosys GmbH. It deaerates water down to a residual oxygen concentration below 10 ppb without use of stripping gas. Optionally the water can be cooled down, filtered or sterilized with ultraviolet light. The function of the unit can be monitored and documented by an in-line oxygen analyzer at the outlet of the unit.

The process is employed in the brewing, beverage, food and chemical-pharmaceutical industries and the power industry, wherever water with lowest oxygen content is required to assure high product quality and stability and to avoid corrosion.

The system is characterized by high operational reliability and low energy consumption.

ADVANTAGES AND FUNCTIONS

TECHNICAL DESCRIPTION

The water is distributed homogeneously to the structured packing at the top of the column. It slowly flows downwards through the structured packing. An excellent distribution of the water in the column is ensured by the high-performance structured packing. The resulting enlargement of the contact surface of water causes an optimal removal of oxygen. Due to the combination of two degassing steps operated at different pressures, lowest oxygen values are reached.

No stripping gas is used and zero greenhouse gas is emitted. The deaerated water is pumped out of the bottom of the column with a frequency-controlled pump. Optionally the water can be cooled down in a plate heat exchanger by glycol or ammonia.

Sensors for oxygen, level, flow and temperature monitor the proper functioning of the system.
The unit can be controlled by a local PLC with a touch panel or by a process control system. Designed for high hygienic standards, all common cleaning agents in the beverage and chemical-pharmaceutical industry can be used for CIP cleaning.

TECHNICAL SPECIFICATION

Capacity25 bis 1000 hl/h / 2,5 bis 100 m3/h
Residual oxygen conten< 10 ppb / 0.01 ppm
CO2 consumption0,00 g/l
Cooling mediaglycol or ammonia

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