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Desalination Research Paper

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After years of water shortages plaguing the southeast of Queensland the state government decided to build a desalination plant, at Tugun, on the Gold Coast in 2009. After only 2 months after the taps were finally turned on, the State Government’s $1.2 billion desalination plant was shut down for five weeks of repair. (task sheet) The main problem the desalination plant faced was corrosion. The two giant stainless tanks used to store desalinated water had to be replaced because of corrosion and more than 100m of rusting pipe had to be replaced.
DESALINATION
Desalination is the process of removing dissolved salts and minerals from seawater or brackish water. (WaterReuse, Association, “What is Desalination?”) A desalination plant essentially …show more content…

(Capital Painting. "Factors That Affect the Rate of Corrosion.") Oxygen can affect corrosion as it increases the rate of it. When an electrolyte is in contact with an area of metal containing high amounts of oxygen it is cathodic relative to the remaining surface. Which results in an oxygen concentration cell to form and causes rapid corrosion. The rate of corrosion is generally much slower in an oxygen-deficient environment, because without oxygen the reduction reaction could not occur, which would mean corrosion not being able to take place. (Capital Painting. "Factors That Affect the Rate of Corrosion.") Temperature too can affect corrosion, as corrosion reactions are electrochemical in nature and are normally accelerated with increasing temperatures. (Capital Painting. "Factors That Affect the Rate of Corrosion.") Therefore corrosion reacts faster in warmer temperatures. Another factor that can affect corrosion in chemical salts. Chemical salts increase the rate of corrosion by them increasing the efficiency (conductivity) of the electrolyte. (Capital Painting. "Factors That Affect the Rate of Corrosion.") Seawater contains the most common chemical salt of sodium chloride therefore increasing the amount of corrosion. Humidity is another factor that affects corrosion, as the wetter the environment, the more likely corrosion is likely to

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