Use of Marginal Water

With the continuously growing population, the gap between the demand and supply of acceptable water quality for irrigation constantly increases. The intensified efforts to improve the agricultural economy in arid zones are associated with increased demand for water. The scarcity of potable water has heightened the importance of marginal water in dry regions. Marginal water includes wastewater from urban and peri-urban areas, saline water, and runoff water. At the dawn of an era where climate change, land and water degradation, and groundwater depletion are the major obstacles in meeting the Millennium Development Goals, marginal water brings new opportunities, but also lots of challenges to overcome.