Hi, I really like the concept you bring up of vacuum distillation, AKA turning water into steam at virtually room temperature. But I disagree with you on a couple of things you claim - or disclaim? <g>
I think you'll find that ANY distiller, "given a gulp of" bilge will fail, including a vacuum distiller - which does a great job of distilling kerosene and diesel right along with water. To make a long story short, a good system will have a series of filtration devices from flotation separators to sludge filters to centrifugal spinners to standard mechanical filters to chemical media designed to meet the challenges of the feedstock. The membrane of a R.O. filter is no more delicate than a 1 micron mechanical filter, any chemical medium, or resin-bed "softener", and not much more expensive or difficult to replace than any other good quality filter medium. A failed vacuum unit, or its associated pump are quite expensive, as you point out yourself. Since medical facilities and laboratories rely on the purity of the water they use, and they use R.O. systems and DI cartridges it's a little off-the-wall to claim that vacuum distillation produces water "much better". My own relatively cheap R.O. unit with a DI cartridge produces water reading less than two tenths of a Micro-Siemens conductivity and I replace the filters at a cost of less than $30, once every two years; not when product indicates a need to, I do it just as a precaution. The system yields about 50 gallons U.S. per day at max., which is way more than I need for my modest CS making and personal consumption. Take care, Malcolm On Sat, 2009-05-30 at 11:33 -0500, ATOMICSILVER wrote: > > > Begin forwarded message: > > > From: Gregory Anderson <[email protected]> > > Date: 29 de mayo de 2009 23:00:55 GMT-05:00 > > To: ATOMICSILVER <[email protected]> > > Subject: Distiller > > > > > > Interesting note on the distillers. I had a vacuem distillation unit > > on my sailboat that made pure water from seawater and was adjustable > > in the purity but was very costly and made water much better than > > the reverse osmosis units and or course with them the membranes are > > so fragile if the get a gulp of someones bilge oil, for > > instance,they can be ruined. Dean Kamen is trying to distribute at a > > moderate cost a very interesting vacuem distillation unit that he > > has been testing in India in conjunction with a small stirling > > engine to generate the power, 1kw, to run the unit and provide some > > extra. IfI remember right it makes about 1000.l per day. Check him > > out on the web, inventor of segway, loads of medical devices, etc. > > Peace, G&G > > > > Gregory Anderson > > Tel 999-910-4945 > > [email protected] > > > > ATOMICSILVER > [email protected] > www.atomicsilver.info > > > > > -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: [email protected] Address Off-Topic messages to: [email protected] The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <[email protected]>
