Salty Water In...fresh Water Out

In many poor, third world countries, even havingTheir technique is more energy and economically
the resources to obtain electricity presents aefficient.
problem. Due to the lack of logistics, as well asTheir method, unlike the others, runs directly on
the finances even if all of the logistics were inwind power. The middle step of storing the
place, alternate methods are necessary in ordertoelectricity has been completely eradicated from
have the basics that those in more financiallythe equation. By storing water (which is more
fortunate areas of the world have.cost-effective than the electricity storage), calm
A recent development at Delft University ofperiods, when there is no wind, are not as dire of
Technology (TU Delft) in the Netherlands is aan issue.
basic windmill that operates a pump, in turn utilizingThe windmills that are in use for this process are
reverse osmosis to output fresh water from theslow-moving and strong. The estimations that
salty seawater that is put in. Reverse osmosis ishave been done up to this point on the windmills
a process used to purify concentrated solutionsin question gauge them to be able to provide
(often water with high levels of dissolved salts) indrinking water for a small village of around five
which pressure is applied to the morehundred people. This is not per week, or per
concentrated (or contaminated) solution on onemonth. These estimates are on a per day basis
side of a semipermeable membrane. The result isthrough the reverse osmosis process of one
the movement of solvent, but not solutes, fromwindmill. University of Delft is aware that an
the more concentrated side to the more diluteemergency supply needs to be in place to
side, thus separating clean solvent from theconsume during the inevitable calm periods when
concentrated solution.the windmill is not able to use the wind power to
So, basically, in laymens terms, reverse osmosisoperate the reverse osmosis procedure.
purifies the salt filled sea water so that it is ableThe first test run for this new development is set
to be used for drinking water. This developmentfor the beginning of March, in which the windmill
by Delft University is a critical advancement forthat has been operating near Delft will be
small villages located in arid areas near the coast.dismantled and relocated to Curacao. The
Using windmills for desalination is nothing new.prospects of this succeeding will be monumental
These contraptions have previously been utilizedfor villagers who lack fresh irrigation and who
and have been marketed already. The windmillshave to employ manual techniques to obtain any
on the market currently use wind to producesemblance of drinkable water. The economical
electricity, and then store that electricity in orderaspect, along with the quicker, machine-operated
to begin the process of reverse osmosis. Due toabilities villagers will now have to acquire such a
the expensive nature of this, as well as the factbasic need, will surely have colossal effects on
that energy depletes during the procedure, TUpoorer, third world countries.
Delft contrived a method that is a bit different.