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Filtration and stabilization of beer, kvass

Beer filtration is used in industrial brewing to extend the storage life of the product.

Beer is filtered to remove residues of yeast and bacterial cells, suspended particles, various mutating impurities. For this purpose kieselguhr filters, press filters, separators, as well as cartridges are used.

Unfiltered beer is stored only a few days, filtered on a kieselguhr filter - from 5 to 20 days, the one that has passed additional filtering (control) on cartridges - from 30 to 90 days. 

The main applications of cartridge microfiltration in beer production

  • trap-filtration (fine filtration after the precoat kieselguhr filter)
  • control filtration before bottling
  • sterilizing membrane filtration for cold filling
  • sterilizing filtration of water
  • fine filtration of industrial water and detergent solutions
  • sterilizing filtration of process air, nitrogen, carbon dioxide
  • fine vapor filtration
  •  "breathing" filters for tanks 

PREPARATION OF GASEOUS MEDIA (carbon dioxide, nitrogen, air)

The filtration of gaseous media is widely used in the production of beer at various stages of the technological process.

Preparation of gaseous media is carried out in the cascade filtration mode.

  • Fine filter for removal of mechanical inclusions (oil, dust, dehumidification).
  • Adsorption filter based on activated carbon to remove odors.
  • Sterilizing membrane filter for microorganism removal.

Brief specification of Technofilter sterilizing membrane filter cartridges used at the final stages of gaseous media filtration.

Brand

Filter material

Pore size, μm

Properties

Notes

EPM.F4

fluoroplast-4            (PTFE-Teflon)

0.2

Hydrophobic, working temperature - up to 100 ° С

For sterilizing filtration of air and gas media, "breathing" filter for tanks

EPM.F

fluoroplast F42L

0.25; 0.45; 0.65; 0.8

Hydrophobic, working temperature - up to 80 ° С

For the final stages of air and gas filtration, "breathing" filters for tanks

Depending on the system flow rate and pressure, the filter holder for gas media with brand name DS-B is selected. 

TRAP-filtration of beer, clarification

Trap filtration after the kieselguhr filter is a system permitting not use a filter press, in which the filtration is carried out in a closed housing with minimal loss of carbon dioxide and prevents the contact of beer with air, preserving the taste of the drink. At the same time, product losses and labor intensity of the process are significantly reduced. This method is widely used in the West and in Russia (including large beer corporations). It allows to significantly reducing the cost of consumables (in comparison with the filter card) and the costs associated with product losses. The system as a rule consists of a filter holder (see below) with a set of cartridge filter cartridges.

Filter cartridges for efficient and economical trap filtration 

EPVg.P filter cartridge for high-quality trap-filtration with the possibility of multiple wash out and regeneration. 

CHARACTERISTICS

ADVANTAGES

100% full polypropylene filter cartridge with excellent performance and high chemical resistance

  • Excellent thermal resistance (up to 90 ° C).
  • Wide chemical compatibility (pH 1-14).
  • Longer service life due to increased surface area (pleated).

High efficiency of microparticle retention (98-99.5%)

  • Available with a wide range of ratings from 0.2 to 20 microns.

Reinforced structure, stable matrix

  • Reliable integrity of the filter in harsh environments.
  • Withstand steam sterilization in line, multiple backwash rinses and all types of sanitation treatment

Non-toxic

  • Passed wide range of tests and certificated for application in the food-processing industry, produced according to the certificated system of a quality management GOST R ISO 9001-2008 (ISO 9001: 2008)

 Operational characteristics 

  • The maximum pressure drop is 0.5 MPa at 20°C, 0.25 MPa at 80 ° C
  • Rinsing with hot water (at least 100 cycles) - 90°C, 30 min
  • Steam sterilization (at least 20 cycles) - up to 135 ° C, 30 min              

Filter holders DS for liquid media

"Technofilter" presents a series of filter holders made of stainless steel AISI 304 and AISI 316L of the range DS. The filter holder is selected depending on the performance for the required number and height of filter cartridges.

Distinctive features of DS-1, DS-5, DS-8 filter holders

  • High quality polishing of external and internal surfaces.
  • Availability of internal arias for inspection and washing.
  • The absence of hidden and hard-to-reach arias due to an additional lightweight separator.
  • Absence of stagnant zones.
  • Full depletion of liquid through drain valves.
  • Increased accuracy and cleanliness of the mounting holes for the adapters and surfaces under the sealing elements ensures a high tightness of interfaces between media interfaces (source medium / filtrate / external medium).
  • Simplified installation at point of use due to the hinged connection of the nozzles to the base. It is equipped with pressure gauges for monitoring hydraulic resistance.

Technical and operational characteristics 

Brand

Number of elements and height, mm

Overall dimensions, mm

Max. operating pressure, MPa

Nominal passage, mm

Adapter type, mm

DS-5-А(D)-500P

5х500

475х270х1040

0,6

40

44,5/56

DS-5-А(D)-750P

5х750

475х270х1290

0,6

40

44,5/56

DS-5-А(D)-1000P

5х1000

475х270х1540

0,6

40

44,5/56

DS-8-А(D)-500P

8х500

640х395х1145

0,6

50

44,5/56

DS-8-А(D)-750P

8х750

640х395х1395

0,6

50

44,5/56

DS-8-А(D)-1000P

8х1000

640х395х1645

0,6

50

44,5/56

DS-18-А-500P

18х500

789х490х1119

0,6

80

44,5

DS-18-А-750P

18х750

789х490х1369

0,6

80

44,5

DS-18-А-1000P

18х1000

789х490х1619

0,6

80

44,5

DS-24-А-1000P

24х1000

667х592х1714

0,6

80

44,5

DS-29-А-1000P

29х1000

667х592х1714

0,6

80

44,5

Afterfiltration of beer before bottling

Unpasteurized beer is becoming more and more popular, but its production requires some changes in filtration technological scheme. The generally accepted filtration scheme for the production of pasteurized beer is as follows:

 

 

This scheme does not guarantee the sterility of the product. Even with sterile cardboard, sterility is guaranteed only at the outlet of the filter. When the product passes through the beer tank and pipelines to the filling line, secondary insemination takes place.

Technofilter recommends using an additional stage of filtration – AFTERFILTRATION before bottling. Afterfiltration stops foreign particles and bacteria, thereby significantly increasing the storage life of "live" beer.

Proposed scheme:

or the scheme where the filter press is replaced with trap-filter cartridge:

Filter cartridges for filtration before bottling of unpasteurized beer

EPV.S cartridge filter for high-quality filtration with the possibility of multiple wash out and regeneration.

EPV.S is depth pleated filter cartridge with a large surface area and low resistance to flow based on micro-glass fiber material. The filtration efficiency (practically like one for the membrane filter cartridge) is achieved by the high adsorption capacity of the glass fiber in combination with the increased dirt capacity of the filter material.

Learn more about EPV.S

Characteristics

Advantages

High efficiency of bacteria and particle removal (98-99,5%)

  • Possible ratings 0.2 and 0.5 microns

Large surface area (pleated)

  • Higher flow rates with the smaller differential pressure

Stable matrix, reinforced construction

  • Reliable integrity of the filter in harsh environments
  • The structure of the filter cartridge excludes "dusting"
  • Withstand steam sterilization in line, multiple backwash flushing and all kinds of sanitary-chemical treatment.
  • Longer service life

Operational characteristics

  • The maximum pressure drop is 0.5 MPa at 20 ° C, 0.20 MPa at 90°C
  • Direct flow wash out with hot water (at least 100 cycles) - 90°C, 30 min
  • Steam sterilization (at least 20 cycles) - up to 135 ° C, 30 min        

Biological sterilizing membrane filtration

Technofilter presents new-generation filter cartridge EPM.PS based on polyethersulfone membrane specially created for sterilizing filtration with the possibility of multiple wash out, sterilization and regeneration. 

Characteristics

Advantages

The filter is based on a reliable pleated polyestersulfone membrane with excellent performance characteristics 

  • Wide chemical compatibility (pH 1-14)
  • Excellent thermal resistance (up to 100°C in water)
  • Low protein binding
  •  Longer service life due to increased surface area up to 0.76 m2/250 mm 

High retention efficiency for bacteria and microorganisms (99.98%) 

  •  Produced with pore sizes of 0.65, 0.45 and 0.2 microns. Guaranteed removal of yeast cells, molds and bacteria before bottling. 

A pronounced asymmetric pore structure and an increased total porosity of the membrane

  •  High filtration speed and low differential pressure ensure economical filtration. 

Reinforced construction, longer service life

  • Reliable preservation of filter’s integrity under harsh operating conditions.
  •  They withstand steam sterilization in line, repeated alkaline wash out and all kinds of sanitary-chemical treatment. 

100% control for quality assurance, integrity testing 

  • Microbiological reliability - the breakthrough of delayed particles and microorganisms is excluded.
  • Guarantee the integrity and effective operation of the product.
  •  Can be checked by a special integrity test during operation. 

Non-toxic, pyrogen-free 

  •  Passed wide range of tests and certified for use in the food industry, manufactured in accordance with the certified quality management system ISO 9001: 2008. 

Operational characteristics

  • The maximum pressure drop is 0.5 MPa at 20 ° C,    0.25 MPa at 80°C
  • Direct flow wash out with hot water (at least 100 cycles) - 90°C, 30 min
  •  Steam sterilization (not less than 20 cycles) - 121 ° С, 30 min         

Filtration plants

On the customer’s request, filtration plants with manual and automatic control of UPF.R and UPF.A types are designed on the basis of multicartridge filter holders. They are designed for various flow rates (from 0.5 to 12,0 m3/h and more). Technofilter designs, produces and completes customer-oriented systems including all necessary measurement equipment and automatic control units according to customer’s request.

Filtration plants are compact, mobile, easy to operate. It is possible to install them permanently in place, i.e. locally as well as on a frame or a trolley. Systems consist of several filtration units and are fully equipped (pump unit, measuring and shut-off valves, pipelines, etc.) and ready for operation.

Automatic device TECHNOCHECK ™ mini for rapid integrity tests of membrane filter cartridges and systems used in the production of beverages.

The beer filtration plant with cleaning unit with the detergent solution is used in the food industry for the production of beverages and is intended for the filtration of alcoholic and non-alcoholic beverages.


Completion:

  • a beer filtration unit (two stainless steel DS filter holders with manometers for several filter cartridges);
  • filtration block for detergent solutions (two stainless steel filter holders DS for several filter cartridges); washing separately each cascade in the forward and backward direction, this allows regeneration to be carried out more efficiently and significantly extend the service life of the filters.
  • piping, stop valves. 

Automatic device TECHNOCHECK ™ mini for rapid tests of the integrity of membrane filter cartridges and systems used in the production of beverages.

 


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