Abstract
Nitrates, chlorides and sulfates removal from water by ion-exchange purification processes were examined. Relations on persorption of nitrates, sulfates and chlorides on ion-exchanger form, relations and level of anions concentrations in the solution were determined. It is shown that when using anion exchanger АВ-17-8 in the basic; carbonate form or basic-carbonate form there alongside with extraction of anions from water it gets softer. When using the ion-exchanger in the basic form the softening is primarily caused by extraction of magnesium and in the carbonate form due to settling of calcium. It is determined that with different ratios of anions concentrations during ion-exchange purification there nitrates breakthrough occurs. The nitrates concentrations in the filtrate get higher with increase of sulfates and chlorides content as well as in proportion to saturation of the anion exchanger with nitrates and sulfates. Bibl. 17, Fig. 7, Table 1.
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