Though the water hyacinth is a menace and you wish to recover elements, the recovery will be very less as the hyacinth has more weight of water than the metals. So try to remove it by any standard method but it should be cost effective.
How can we separate elements like (Sodium, magnesium, calcium, chlorine and potassium). Like our body separates all this from water. how is it possible???
Aquatic hyacinth are indeed a menace to aquatic environment, thinking of how to recycle them is a good idea. However, a typical aquatic hyacinth has higher water content than every other elements. It may therefore be tedious since a very large quantity may give just a little of the elements sort for. We may wish to look for other better ways of recycling them that are cost effective.