Freshwater is gaining same importance in 21st century as oil in the 20th century. There is a severe water deficiency for drinking, domestic use and agricultural purposes in GCC countries including Qatar. However, a number of seawater desalination technologies are developed during the last decades to augment the supply of water in arid regions. These technologies and continuous research work suggest that seawater is the only freshwater of future. The increasing usage of desalinized seawater has demonstrated it as a feasible water resource despite high costs. Seawater desalination process separates saline seawater into two streams: a fresh water stream (with low quantity of dissolved salts) and a concentrated brine stream. The most widely used technologies at present are Reverse Osmosis (RO) and Multi-stage Flash (MSF) distillation. These processes require a lot of energy and attached costs. There is problem of disposing brine as well. Innovative technologies are emerging through consistent research and subsequent development for removing present deficiencies. Nano technology of water desalinization is one of these. This water purification process is claimed just as effective as current methods but more energy efficient and potentially much less expensive. However, this needs research under Qatar and UAE conditions prior to recommend for adoption in the country’s agriculture for irrigation. Present project will address this aim through collaborated efforts of Ministry of Environment of Qatar and funds provided by QNRF.