Final filtration allows you to retain particles and bacteria in order to increase shelf life of kvass.
Purposes of filtration
The generally used filtration scheme for the production of pasteurized kvass is as follows:
This scheme does not guarantee the sterility of the product.
Even when using sterile cardboard, sterility is only guaranteed at the outlet of the filter. When the product passes through the tank and pipelines to the bottling line, secondary insemination occurs.
NPP Technofilter recommends using an additional stage of filtration - control filtration before bottling. Control filtration allows retaining impurities and bacteria, thereby significantly increasing the shelf life of "live" kvass.
Proposed scheme:
or a scheme with replacing the filter presses with a cartridge trap filter:
Recommendations for filter cartridges
Filter cartridges for kvass filtration before bottling
Cartridge filter EPV.S is designed for high-quality filtration with the possibility of multiple washing and regeneration.
EPV.S is a death corrugated filter cartridge based on microfiberglass material with a large surface area and low resistance to flow. The filtration efficiency (practically at the membrane filtration stage) is achieved by the high adsorption capacity of the glass fiber as well as increased filter capacity.
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CHARACTERISTICS |
ADVANTAGES |
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High efficiency of bacteria and particle removal (98-99,5%) |
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Large surface area (pleated) |
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Stable matrix, reinforced construction |
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Operational characteristics
- The maximum pressure drop - 0.5 MPa at 20 °C, 0.25 MPa at 90 °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