Published by Karan Kurien, KK environment - Technical director
Hello everyone, we are having Arsenic contaminated water on our project site. Can anyone explain how to distill it out of water?
Arsenic contamination of drinking water is a global problem that will likely become more bigger in future. The primary methods for removing arsenic from drinking waters include Ion exchange using a resin to remove anionic As species, Coagulation/Micro-filtration Adding Fe(III) or Al(III) salts to form arsenic-sorbin flocs which are subsequently removed from solution by granular media or membrane filtration, Fixed bed adsorption Removal of arsenic with an adsorbent, typically a metal (hydr)oxide such as ferric hydroxide or AA (activated alumina), Lime-softening Adding lime to soften water (remove Ca and Mg) often removing appreciable amounts of arsenic in the process through sorptive uptake by metal carbonates and hydroxides, Iron removal Oxidizing reduced iron to remove arsenic through sorption/coprecipitation/coagulation, • Physical filtration To remove colloidally-bound arsenic, Membrane processes Membrane removal of arsenic by Reverse Osmosis (RO) or Nano filtration (NF)
Published by Aseem Murtaza
Arsenic removal comments already posted
Hi Karen,
Following are some links already posted on The Water Network addressing this question. We will forward to others to get additional input from the membership.
Published by Water Network Research, Official research team of The Water Network