What is the Difference between Sea Water and Fresh Water?
The main difference is in the amount of dissolved minerals. Sea water contains about 30 kg. of minerals per 1000 litres (mostly salt). The mineral content of fresh water supplies is much lower and generally ranges form 5 g. to 1 kg. per 10001. While work is now in progress on methods of purifying sea and brackish water at the present time only fresh water supplies are generally used for boiler feed purposes.
