Hi Hakan >Keith, > >Maybe you heard what they say in Netherlands. They have very clean water to >start with, because before it arrives to Netherlands it passed at least 5 >Germans. Kidneys are maybe the most efficient Turbokiller. LOL
LOL! Yes, I did hear that in the Netherlands. But I think you're only allowed to say that if you're a Dutchman, not a foreigner, and definitely not a German! Their water management is most impressive, however, including the purifying bit of it. It's more complex than I can remember now, but I spent time walking in the very attractive dunelands where they filter the water. Nice. But I was wondering about the electrolysis part of this process. Salt, water and electricity produces, what, hydrogen and chlorine - what happens to the sodium? And to the hydrogen? It's really this simple? If so there really is application for it, this is a serious problem, as you know, it affects billions of people and kills lots of them, especially the children. regards Keith >Hakan > >At 09:30 27/11/2003, you wrote: > >Does this make sense? Seems to be missing something, not sure quite > >what. Or can it not only purify your water but produce hydrogen for > >your fuel cell? - Keith > > > ><http://us.oneworld.net/external/?url=http%3A%2F%2Fwww.rnw.nl%2Fsci >ence>http://us.oneworld.net/external/?url=http%3A%2F%2Fwww.rnw.nl%2Fsc >ience > > > >%2Fhtml%2F031124tap.html > > > >Killer on tap > > > >by Thijs Westerbeek, 24 November 2003 > > > >Worldwide, good, clean drinking water is a rarity. While tapwater in > >the Netherlands is of such good quality that most of it doesn't even > >need to be chlorinated - the Dutch are extraordinarily proud of it - > >in the developing world it's wise not to drink tapwater at all. Now a > >Dutch invention called the Turbokiller can provide germ-free drinking > >water without complicated technology and without an unpleasant taste. > > > >Modern technology for disinfecting drinking water is so refined it > >leaves no discernable chemical taste; even though there is indeed > >chlorine in the water the level can be monitored so precisely that a > >tiny amount is enough to keep the water free of bacteria at all > >times. Unfortunately, this requires a lot of expensive high-tech > >equipment which is out of the reach of developing countries. In any > >case, most tapwater is not even used for drinking, so to chlorinate > >all of it is not necessary. > > > >Swimming pool precedent > >This is where the Turbokiller comes in. It is, quite simply, a > >self-disinfecting tap. Inventor Jan Tholen, from the town of Bussum > >in the Netherlands, got his inspiration from the systems used for > >chlorinating swimming pools. Modern public swimming pools don't keep > >large stocks of poisonous and dangerous chlorine on hand; they > >produce what they need from salt. What is basically normal kitchen > >salt can be converted into chlorine through a well-known process > >called electrolysis. > > > >This report was featured in Research File. Listen to the programme in > >full. (29:30) > >The basic principle for this is very simple. If you run an electric > >current through a salt solution, the salt will turn into chlorine. In > >public swimming pool systems, this happens on a large scale, with a > >lot of machinery and electricity required. Dr Tholen's challenge was > >to achieve electrolysis on a smaller scale. > > > >Self-powered > >The answer lay in the 'turbo' part of his invention. Once he realised > >that the pressure of the water itself could be used to turn a small > >turbine, most of the problem was solved. The turbine drives a small > >generator that produces just enough electricity for on-the-spot > >electrolysis; the only other thing needed is a reservoir holding salt > >(a kilogram should last a year of normal operation). > > > >Turbokiller: see text right for key > >So this is what happens exactly: dirty water arrives through the > >water mains at the tap. There a tiny stream (1) (about one > >thousandth) is diverted from the main flow, which then receives salt > >from the reservoir (2) mounted on top of the tap. Meanwhile the > >powerful main flow drives the turbine (3) which produces electricity. > >This electricity is passed through the thin pipe with the dissolved > >salt (4), electrolysis occurs, the salt changes into chlorine and the > >smaller flow (5) joins the main flow again. The chlorine solution > >from the smaller pipe instantly thins out by a factor of one > >thousand, remaining just strong enough to kill harmful bacteria and > >germs without leaving an unpleasant taste. > > > >The amount of chlorine in the water always remains steady; if the tap > >is opened further, the stronger flow powers the turbine faster, > >producing more electricity to deal with the quicker side-flow of > >water which has dissolved more salt. The extra electricity results in > >stronger electrolysis and produces more chlorine. In short; the > >Turbokiller is a self-regulating system, no complicated controlling > >equipment is required. > > > >Jan Tholen > >Dutch applications > >First and foremost this self-disinfecting tap is ideal for developing > >countries. No maintenance is required, and all it uses is a bit of > >kitchen salt from time to time. At the same time the Turbokiller can > >play a role in the Netherlands; without giving up chlorine-free > >drinking water, chlorine can be added locally. If, for instance, a > >Turbokiller system were added on a water mains leading to a hot > >swimming pool shower, problems with legionella would be a thing of > >the past. ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511 http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/index.php?list=biofuel Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! 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