Membrane filtration for use in wine filtration
Membrane filtration for use in wine filtration
(OP)
I look for membranes manufactures and modules for filtration, separation, concentration and purification processes in the wine making.
Does anyone know who has the best knowledge in this field?
Thanks.
Does anyone know who has the best knowledge in this field?
Thanks.





RE: Membrane filtration for use in wine filtration
www.cuno.com; www.pall.com; www.millipore.com for more information.
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee
RE: Membrane filtration for use in wine filtration
The membrane filtration step is used for clarification of the wine.
I certainly will have a closer look at the links you provided.
I look for crossflow capillary microfiltration membranes.
High hydrophilicity of the membranes ensures an extremely low fouling tendency.
RE: Membrane filtration for use in wine filtration
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee
RE: Membrane filtration for use in wine filtration
Objective is trying to lower costs and provide the perfect quality at minimum expense.
Thank you for the debate.
RE: Membrane filtration for use in wine filtration
If you can get a nylon membrane to process all of one batch and have it be near exhaustion at the end of the batch, it may be more cost effective than a PES filter that has not been exhausted but still needs to be thrown away because the batch is finished. Storage of partially exhausted filters is not recommended. Bacteria will certainly grow on the filter. If you prefer PES, then I would suggest Pall or Millipore. I believe Sartorius also has a PES filter. From rumor, I believe Millipore has the best PES cartridge, but I cannot say for sure. CUNO does not yet market a PES membrane filter.
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee
RE: Membrane filtration for use in wine filtration
I was looking at this one:
ht
Appreciating your comments.
Thanks.
RE: Membrane filtration for use in wine filtration
I see they suggest increasing flux to overcome fouling. While this may work, increasing the flux also can decrease the efficiency, and can let unwanted debris through. This, to me, sounds like a procedural recommendation to compensate for a pitfall in the design.
-aspearin1
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee
RE: Membrane filtration for use in wine filtration
BTW.
The cleaning agent cost is as you can see is nearly nothing and can be obtained everywhere. For disinfection, a 1% sodium metabisulfite solution can be used or alcohols, no need for” soaking my filters in biocide”
RE: Membrane filtration for use in wine filtration
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“Companies are realizing that the costs can be higher by maintaining chemical cleaners, anti-foulants and biocides, the time it takes to sterilize large "cleanable" systems, and the space it all takes up. As a wine producer, I would be suspicious of how soaking my filters in biocide will effect my product.”
The 10 reasons is taking that away I would say.
RE: Membrane filtration for use in wine filtration
Also consider the hold-up volume of the system. This represents potential loss of product. If you are performing a 16 hour backwash, you have a water-saturated system. You then probably need 3x that volume of wine to flush out the excess water, unless you can live with a diluted product.
I'm also not familiar with submersible UF. I presume it's just like this housed UF (x-flow) but it's open into a large sump.
The products I my company produces are disposable pleated cartridges. They are plumbed in sanitary stainless steel housing with all sanitary fittings. Most housings are flexible enough to increase capacity as necessary. Cartridges are not backwashed, but are discarded. The cartridge business is so diverse that every competitor can retrofit each other's housings. If you bought housings from my company and decided you didn't like the filters, you could easily switch to my one of my competitor's products.
The x-flow will no doubt outlast any single cartridge. What you would need to balance is capital expediture and long-term operating costs over the predicted life of one x-flow filter. (Backwash schedules, batch sizes, change out frequency, labor, consumables, lost product...) Lots to consider.
I'd be curious to know if your x-flow technical rep suggests some sort of pre-filter. If you want a tech rep from my company, you can follow the contact instructions on the www.cuno.com web page. The same would also be true with Pall or Millipore.
Good Luck.
-aspearin1
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee
RE: Membrane filtration for use in wine filtration
Check this link: http://www.kochmembrane.com/mktapp_winef.html
RE: Membrane filtration for use in wine filtration
Trade mark : Kerasep 0,1 µ
same ceramic membranes are used for spring water filtration after oxydation step using air (iron and maganese removal)
RE: Membrane filtration for use in wine filtration
Membrane filtration in wines is a absolute filtration method normally reserved for final filtration before bottling.
Most to all wineries involved in membrane filtration use either Depth filter sheet or DE filtration. The Depth filter sheet involve a plate and frame set up with disposable filter sheets of various grades to handle the rough/medium/fine filtration needs. DE involves a series of screens that are loaded with DE and then used for gross filtration.
The last option not noted here is using a DE filter/Pad filter to a Centrifuge before final filtration for what the call a one pass filtration.
Membrane filtration as noted above comes in many styles, cross flow does have a large upfront cost and upkeep but lower year to year cost and is normally reserved or installed at larger volume wineries.
Another membrane style not noted above is a Cellulose acetate membrane, is one of the nicest I have come across with its ability to be hot water cleaned/sterilized (can't use caustics on this one) and stored in a alcohol solution between uses. It has the highest naturally occuring hydrophillic action and lowest binding available.
Normally in the CA (cellulose acetate) this should provide at least 9 gal/min (30" at 1-2psi) for bottling and even in some of the largest lines I have seen provide enough flow. There is multi-round housings that will allow using multiple single membranes in one housing for even larger flows.
For what ever option you use make sure:
Understand the quality levels of the membranes used, ask for individual testing of your membrane, not lot testing. This will insure each membrane is tested for greater quality, lot testing can allow a few bad membranes to slip through.
Use a chemical cleaned membrane involves handling of caustic products and special mixing etc.
Get familiar with the membrane quality checks, using either bubble point or check hold to verify your membrane as you use it.
Protect your membrane from high loadings (jamming it) and try to use the lowest pressures you can, in other words protect your membrane and it will protect you.
Hope it helps,
Jim Russell
AFTEK filtration