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.