41. Bone and ivory was desalinated to prevent damage from salt crystallisation, as was glass, ceramic and stone. 42. In 2008, a Energy Recovery Inc . was desalinating water for $ 0.46 per cubic meter. 43. At 15 Euro / m 3 the cost of desalinating brackish water in these small plants is very high. 44. Four flash evaporators and a reverse-osmosis unit desalinate sea water to produce 1000 tons of fresh water daily. 45. The cost of desalination varies; Israel is now desalinating water for a cost of 53 cents per cubic meter, 46. Sydney residents south of Sydney Harbour and as far west as Bankstown are the direct consumers of the desalinated water. 47. The percentage of desalinated water produced versus the saline water feed flow is known as the " recovery ratio ". 48. And perhaps a far bigger issue is that while we can desalinate water, it remain an incredibly expensive process. 49. Researchers used desalinated deep ocean water processed with ultra-filtration and reverse osmosis to increase magnesium levels and hardness. 50. :: : : The sunlight can be put to work to set up a solar still to desalinate it.
