A survey into the various methods of desalination

Τίτλος

A survey into the various methods of desalination

Θέμα

Desalination and water purification

Δημιουργός

Lytras, Zakos

Πηγή

Higher Technical Institute

Το πλήρες κείμενο είναι διαθέσιμο από το Υπουργείο Ενέργειας, Εμπορίου Βιομηχανίας και Τουρισμού.

Εκδότης

Library of Cyprus University of Technology

Ημερομηνία

2010

Συνεισφέρων

Tramountanellis, P.

Δικαιώματα

Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού και κάτοχου των πνευματικών δικαιωμάτων.

Μορφή

pdf

Γλώσσα

en

Τύπος

text

Αναγνωριστικό

MED0377

Σύνοψη

Water is one of the most abundant resources on earth, covering three fourths of the planet's surface. However, about 97% of the earth's water is salt water in the oceans, and a tiny 3% is fresh water. This small percentage of the earth's water which supplies most of human and animal needs – exists in ground water lakes and rivers. The only nearly inexhaustible sources of water are the oceans which however, are of high salinity. It would be feasible to address the water-shortage problem with seawater desalination however the separation of salts from seawater requires large amounts of energy which, when produced from fossil fuels, can cause harm to the environment. Therefore, there is a need to employ environmentally friendly energy sources in order to desalinate seawater. After a historical introduction into desalination this paper covers a large variety of systems used to convert seawater into fresh water suitable for human use.
Also an investigation of the basic types of contaminants found in water in water and how there treated. A detail report includes the multistage flash, multiple effects boiling and vapor compression and membrane processes, which include reverse osmosis and electro dialysis.
The paper also includes a review of various systems that use solar energy source for desalination. And finally a concerned about the environmental impacts resulting from desalinating seawater and the effect especially on the marine environment.