WEDEW An invention transforms air into drinking water, without rejecting carbon

[Did67]

The "drinking water" system shows a little the ignorance of the designers of this project: the condensed water is rainwater, so it is very little polluted except for extreme atmospheric pollution ...

And above all, it is ... not very healthy: the body needs minerals contained in water; it also promotes their absorption (including dissolved oxygen) ...

[The same problem also concerns reverse osmosis!]

[Christophe]

Good remark Didier, but the sellers of osmosis have, strangely, the opposite speech

[Remundo]

it is quite true that rainwater is naturally demineralized, and drinkable, unless it passes through polluted "clouds".

but this water can be contaminated at the level of the famous "condenser" if it is not very clean.

[izentrop]

In 2002 I had discovered a project that used wind turbines at a show of innovation .... and 2002 was 16 years ago ...
The concept has been taken up (it may be the same people): water-pumping-filtration / wind turbine-producing-water-from-air-moisture-t8728. html there was some

It is unfortunate that all energy is used only to produce water. As I said before, the cooling energy could be exploited advantageously.

eauEolien.gif (36.44 Kio) Viewed 2709 times

http://www.eolewater.com/assets/files/P ... 0light.pdf
In the desert we get 0.48 l / kWh, so why waste so much energy?

but this water can be contaminated at the level of the famous "condenser" if it is not very clean.

Legionellosis for example.

The water is easy to remineralize, apart from the risks of corrosion for pipelines, we have enough minerals in the diet.

[Did67]

Good remark Didier, but the sellers of osmosis have, strangely, the opposite speech

The fuel boiler vendors explain that this is the top ...

And in a Porsche shop, if you want to order your Cayenne (when ???), it is unlikely that the seller explains that he rejects so much g CO² and advise you an electric bike ...

[Did67]

it is quite true that rainwater is naturally demineralized, and drinkable, unless it passes through polluted "clouds".

It is the air that is polluted. I have some data that have evaluated the amount of nitrogen contained in rainwater at about ten units per ha (of memory) - but it is far to be peanuts! You add sulphates from SO² ...

Add to this what is collected on the roofs (where there are enough minerals for lichens to grow!) ...

So yes, the rainwater is no longer pure.

I do not know if anyone has serious and complete rainwater analyzes (because we only find what we are looking for, we should not see a lot of calcium!).

There it is :

What does rainwater contain?

Analyzes are carried out very regularly in the laboratories to know exactly the composition of the rainwater. This contains:

Sulphate (SO4²): molecule based on sulfur. It is contained in most products, consumables or not. The average amount of sulphate in rainwater is 9,5 mg / L.
Calcium (CA²): a very common chemical component that contributes to bone growth. Rainwater contains on average 21 mg of calcium per liter.
Potassium (K +): a chemical element that is vital for the functioning of animal cells. Its quantity is of the order of 0,8 mg / L.
Chloride (Cl-): atom charged with electrons. Rainwater is dosed at 9 mg / L.
Sodium (Na +): mineral essential to the body. Its value is estimated at 1,6 mg / L.
Nitrate (NO3): chemical substance from pollution. The average rate is 1,6 mg / L. But it can reach locally up to 5 mg / L (heavily agricultural or industrialized regions).

I hope the figures are serious, because the comments (chlorine, an "atom charged with electrons" blah blah - every anion has gained one or more electrons, every cation has lost some).

[Christophe]

it is quite true that rainwater is naturally demineralized, and drinkable, unless it passes through polluted "clouds".

but this water can be contaminated at the level of the famous "condenser" if it is not very clean.

Yes and that's exactly what I just explained!

[Christophe]

The fuel boiler vendors explain that this is the top ...

Ah ah ah yes and there is worse: those who still boast the yellow flame ...

And in a Porsche shop, if you want to order your Cayenne (when ???), it is unlikely that the seller explains that he rejects so much g CO² and advise you an electric bike ...

Not quite right: I think BMW does some bikes (electric I do not think but bike anyway) ... if you buy in their most upmarket I think they can even offer you one ...

[izentrop]

What does rainwater contain?

Analyzes are carried out very regularly in the laboratories to know exactly the composition of the rainwater. This contains:

Sulphate (SO4²): molecule based on sulfur. It is contained in most products, consumables or not. The average amount of sulphate in rainwater is 9,5 mg / L.
Calcium (CA²): a very common chemical component that contributes to bone growth. Rainwater contains on average 21 mg of calcium per liter.
Potassium (K +): a chemical element that is vital for the functioning of animal cells. Its quantity is of the order of 0,8 mg / L.
Chloride (Cl-): atom charged with electrons. Rainwater is dosed at 9 mg / L.
Sodium (Na +): mineral essential to the body. Its value is estimated at 1,6 mg / L.
Nitrate (NO3): chemical substance from pollution. The average rate is 1,6 mg / L. But it can reach locally up to 5 mg / L (heavily agricultural or industrialized regions).

It depends on where and when this analysis date.

For sulfur, for example, in France manufacturers are obliged to add fertilizer to the composition, while the time when we still burned a lot of coal, atmospheric fallout was enough.

[Did67]

Yes of course. It is true that atmospheric S levels are decreasing (mainly due to increasingly stringent standards for petroleum products - fuels and FOD). And it is true that sometimes the S is a deficit element in soils, which must be corrected

I just put it to remind that rainwater is not demineralized water, far from it (as can be distilled water - which in addition is deprived of dissolved gas - or "reverse osmosis" water. ").