Egypts future irrigation water footprint

It seems to be impossible to revert to the resent glory days of having canals and their tributienaris filled with water on almost a constant bases ,  providing a constant supply of fish , as well as providing an ecological environment, specially the sensual  environment of seeing and smelling nature at its best . There is no chance to revert to these days because of the increased demand on water resources .  We will have to give up how we view the current setup within the irrigation system , and eventually stop flood irrigation . We will make less use of open canals by covering them or putting pipping systems ,  this process is actually  being preformed  on a small scale and for different kinds  of reasons around the country.
The ministry of water resources and irrigation has been able to provide water for the increasing demand  by  expanding the tributaries of the Nile  as far away as the sinia to the east and martrough governt to the west . Preforming this process of expantion  is not by any means an easy task . I would consider it to be one of the most advanced irrigation system due to its ability in distributing the irrigation water equally throughout Nile valley and Delta and their expansion over the years . One of the process carried to achieve this was having to fill the canals on a cycle rotation and most of the resent delivery systems rely on the lifting the irrigation waters to higher grounds to serve the outskirts of the valley and the delta and
taking irrigation water to north sinia required the provision of water tunnels  to carry the water beneath the suez canal .
Water scarcity will have  negative ecological impacts on ;  fisheries , seawater intrusion , increased salinity of underground water ,etc .
One of the methods suggested to
overcome water scarcity was by eliminating flood irrigation . And my suggested path to achieve the conversion  was by providing big scale elevated water storage tanks .https://kassemmourad.wordpress.com/2015/04/09/solving-egypt-water-scarcity/.
The volume capacity of the elevated water storage tanks should be in the range of 20,000 cubic metres  . With such capacity it would require to have in the range of 60,000 of these tanks to cover 8 million acres of agricultural land in the valley and delta .
The cost of building the tanks is enormous and it would take decades to recover their costs . The tanks can be utilised to preform 4 extra tasks in order to increase the revenue generated from them , They are as follow ;
1) The tanks will be used as fish farms .
2) Providing fertilised water from fish waste .
3) Establishing factories for filleting and packaging the fish .
4) Produce  fish bone meal fertiliser  from the scraps that are produced from the fish processing factories .
There will also set irrigation fees paid by the farmers for providing them with pressurised fertilised  irrigation directly to their plots .

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