Arsenic Removal by Sorption Processes From \Vaste \Vaters

The current investigation concerns the removal of arsenic from waste waters using ion-exchange resin and activated carbon as sorption media. Use of certain weak and strong base anion exchange resins permits the remo.val of arsenic. Arsenic may be loaded on the weak base resin in the pH range of 2 to 3 and on the strong base resin above pH 5. The elution of arsenic is successfully achieved using 0.5 M NaCl or a mixture of NaCl and NaOH. The activated carbon investigated was less effective on loading arsenic, but the arsenic loaded was easily eluted by simple pH adjustments.
Keywords: activated carbon, arsenic, pH, resins, weak base, Arsenic, Carbon, effluent, pH, Process, Processes, resin, resins, Water, Waters
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