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 Liqui-Flux® Microfiltration Membrane Modules used in wine clarification have a higher throughput and superior performance. The Accurel® symetric polypropylene microfiltration membrane used in the Liqui-Flux filtration modules provide this superior performance.
A membrane filter with a 0.2-micron absolute rating will remove all yeast and bacteria from the wine. Wine filtration using membrane is commonly used for clarification in commercial wineries and microfiltration equipment using membranes is commonly replacing Diatomaceous Earth (DE or Kieselguhr) filters due to the negative environmental and health issues associated with DE.
Why Cross Flow Microfiltration Systems for Wine Clarification:
Liqui-Flux liquid filtration products can be operated in cross-flow or dead-end mode. Cross-flow filters offer many advantages over dead-end, cake and pre filters. Cross-flow filtration modules filter in one step while dead-end and  cake pre filters require several passes to get to the same clarification level as cross-flow filters. Liqui-Flux membrane modules offer better throughput and higher fluxes with less cost when you take employee time, fewer chemicals, and the fact that you save 3 to 4 filtration steps into consideration. Additionally less energy is required to operate Liqui-Flux liquid filtration products because they require less pressure to operate.
The throughput through microfiltration equipment utilizing Liqui-Flux Modules is also higher than traditional dead end filtration and there is minimal wine loss in cross flow processing.
The heart of the Liqui-Flux Wine Filtration Module is the hollow fiber microfiltration membrane. Our Accurel® Polypropylene microporous membranes are ideal for wine clarification and membrane filtration of beverages. Polypropylene can be cleaned with warm water, which reduces chemical cleaning required with other microfiltration membranes used for filtration of beverages. Back flushing can also be used to maintain constant throughput as well as maximize efficiency of the cross-flow filtration process. The cross-flow process is very gentle for wine processing and quality and color intensity are easily preserved. Winemakers now look to cross-flow membrane microfiltration to clarify wine by removing particulates such as yeast, bacteria, and other grape solids.
Through put is increased by requiring less filtration passes and the Liqui-Flux liquid filtration products can be left in operation overnight without employee intervention. There is also no need to dispose of diatomaceous earth, which is becoming more of an environmental and safety concern to wine makers.
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