Cross-flow filtration has been used for the clarification of wine since the late 1980s, along with the filtration of dairy, sugar, fruit juices, and water, for bio-pharmaceutical applications (fermentation broth clarification and purification for the production of amino acids, organic acids, antibiotics, recombinant proteins, vaccines, vitamins, etc.) and for the treatment of industrial effluents.
Cross-flow filtration uses a selective porous membrane that filters a liquid in order to purify or clarify it.
While in dead-end filtration the circulation of the liquid is not perpendicular to the filter (as in cartridges, plate filters, etc.), in cross-flow filtration the circulation is parallel to the membrane.
The technique consists in creating a turbulent stream on the surface of the membrane, thus preventing filtered particles to settle on the membrane.
An important aspect of this type of filtration is that it requires little energy to work. Moreover, the quality of the filtration is constant over time because the fouling is reduced.
Cross-flow filtration is a ‘soft’ process because the filtering is made without any change in the state of the filtered element, and never gets distorted. It is also an environmentally-friendly process as no filter aid is used.
It, therefore, has very strong advantages as it drastically simplifies the steps used to process the wine before bottling and it can reduce or eliminate the need for some consumables. In one step, crossflow filtration clarifies the wine, giving it a clear appearance and making the wine microbiologically stable.
This method of filtration uses no chemicals, this has the power to change & improve the overall quality of your wine.
Benefits of Cross-flow Filtration
Pes Membrane
Specific for wine
Operates at low pressure
preventing heating of wine
Two pump system
Back flush design to increase flow rate at constant flow rate
Unique Systems that use reverse flow
Uses less chemicals and water to clean
No excess material to dispose of
Avoids health issues such as filter powder inhaling
Fully automated and can run overnight
Process can be followed on a smart device
Can use filtered Lees/Juice to blend with A-Graded Juice
Minimum loss depending on Lees solids at one pass filtration
Minimal wine oxidation
Improved wine quality (flavour & aroma) and minimal colour loss
Saves time & labour (1 person operation)
Avoids health issues such as filter powder inhaling
DID YOU KNOW?
Using this system means
The filtration is 2 to 4 times faster with a stable flow rate
Some more benefits:
Quick set up process
Bucher, the brand shines when it comes to filtering difficult wines
Taking dirty wines (800 NTU or higher) to 1 NTU or lower in one pass
The professional service we receive from EWS is great and it is a pleasure to work with Erika and Christo.
Very helpful, and knowledgeable, and have great equipment they work with. I feel at ease using their filters on our wines.
I would highly recommend their services.
uniWines
Vanaf Uniwines Dschbosch Kelder se kant is Epic Wine Solutions baie professioneel en deeglik.
Hulle het in paastyd hul Bucher Flavy X – Treme 6 hier gehad vir die hele seisoen. Ons het ongeveer 888800 liter flotasie prut deur die masjien gesit en ongeveer 587761 liter van dit verhaal. Volgens my was die kwaliteit goed en ons kon dit weer terug versnit in ons ander wyne. Vir my is dit die moeietewerd om gebruik te maak van hulle goeie en hardwerkende diens.
Simonsig
Epic Wine Solutions has been helping me with cross-flow filtration for the last 5 months. I am very impressed with the quality of service as well as the quality of equipment. The machines are new and in top condition with several advanced quality control mechanisms. Filtration is done at low pressure at a good tempo preserving wine quality. Top-class filtration service
