India, Oct. 29 -- With Delhi facing a water supply deficit of around 250 million gallons per day (MGD) during summer, the Delhi Jal Board (DJB) is exploring advanced treatment technologies to tap into contaminated groundwater aquifers for supplying potable water, particularly in areas along the Najafgarh drain, Garhi Mandu and other areas where total dissolved solids (TDS), heavy metals and levels of other contaminants are significantly high.

The DJB has floated an expression of interest (EoI) inviting technology providers and research institutions to install and operate treatment systems capable of removing high concentrations of dissolved salts, heavy metals and other contaminants from groundwater extracted through tubewells.

Accordin...