In this article the increasing viral contamination
of water resources as amajor problem is discussed.The
grouth of human population together with the kinds of industial development that water is used subtantially
for functioning processing. The use of water in industery as well as in agriculture demands the recycling of waste¬
water. The elimiation.of pathogenic viruses from contami¬
nated wastewater by the present water treatment procedur¬es are insufficient, since the viruses can be active in
the water for several months.
cousumption of such water by people can cause certain viral diseases. Although in our country the shellfish
and oysters are not cousumed, yet in some other countries
the people eat these sea products and they become ill.
Finally in this article, the Physical and chemical
methods of eliminating virus from water are discussed and suggestion and advices related to these problems are made