Desalination

staff on 2010/02/24 19:18
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Rendering of desalination plant

Rendering of desalination plant

Pegasos Electra developed “Pegasus desalination device” which uses
solar heat by a new method, as we mentioned in the article “A new
seawater-desalination technology which uses solar energy”
.
Pegasos Electra is proposing a desalination plant for oversea clients.
The following photo is a redering of a desalination plant which
provides fresh water of 100 cubic meters/day. It consists of 10 units
of Pegasus desalination devices.
desalination_plant_02_enThe plant draws water from the sea or a lake and warms up to 80-90 °C,
and makes it to distillated water. (We have to add some mineral to it
for agricultural water or drinkable water.)
Pegasus desalination plant works with solar-heat and consumes no electricity.

staff on 2010/01/18 11:11
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Question:
“Magnesium Bunmeiron (Magnesium Civilization)” describes that equipment and running cost of “Pegasus desalination device” is much lower than other methods such as reverse osmotic membrane.
However, a practical desalination plant will be much bigger than a pilot machine. Can it put out the assumed performance with the practical plant, even if you can get a good result with the pilot machine?

Answer:

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Arab countries are spending their abundant oil moneys to operate numerous sea water desalination plants. They typically use multistage flash evaporation, making use of high temperature steam coming out of thermal power plants to evaporate the sea water to obtain fresh water. Where there are no power generation plants, people are using reverse osmosis process, which filters out salt and other substances when the pressured sea water passes through a membrane (reverse osmosis membrane).
However, the multistage flash evaporation method requires a certain kind of location, and the reverse osmosis method requires a large amount of electric power.
Our group has developed a new sea water desalination technology that does not require either a heat source unlike the multistage flash evaporation method, or a large amount of electrical power unlike the reverse osmosis method. I cannot disclose its mechanisms here because it pertains to our patent application, but I can mention at least that this new technology has a high efficiency even at a small scale desalination plant. This makes it possible to realize a system where we build canals in a desert and place a number of desalination plants along the canal for irrigation.

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staff on 2009/12/15 11:55
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Even if the recycling technologies for magnesium is established, where do we obtain magnesium itself? If we are to procure the quantity of magnesium to circulate as energy currency in the current method of mining dolomite, the mining itself would require a huge amount of energy and cost.
Our plan is to obtain magnesium from the sea. There is 1,800 trillion tons of magnesium in the sea in the form of magnesium ion. As everyone knows, you can obtain magnesium chloride (nigari) by condensing the sea water. It follows that we can condense the sea water to obtain magnesium compound, and then we illuminate this with a solar-energy-pumped laser to produce pure magnesium.
Magnesium chloride in the sea water is called hydrous magnesium chloride, which contains chemically bonded water. When it is heated, the water is removed to yield magnesium oxide. The process that follows is essentially the same as the recycling process for magnesium oxide. Acidum hydrochloricum is produced along with magnesium oxide, but it is relatively easy to handle this because it is liquid.