Donnan dialysis as membrane process for nitrate removal from drinking water: Membrane structure effect

Donnan dialysis as membrane process for nitrate removal from drinking water: Membrane structure effect

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Nitrates are extremely soluble in water and are considered as the renown pollutants of natural water and water table.Removing them through AMX, pure energy jeans AM3, and RPA anion exchange membranes has been studied under donnan dialysis conditions as a function of concentration, pH and the nature of the feed phase.It was observed that the AMX membrane gives the highest nitrate transport efficiency and that the optimal concentration in the selected zone was in 6.2 g/L (0.

1 M) with 37.9%.It was also observed that the best pH for the concentration of 0.62 g/L is pH 10 with eeboo coupons yield of 23%.

Results are evaluated by the yield calculated with nitrates concentration detected by molecular absorption spectrometry in 212 nm.