Answer: According to Lenntech, a water treatment and purification company, it's easy to remove iodine
from water. Simply pass the water over activated carbon. Most water
treatment pitchers will remove iodine from water or you can find
activated carbon sold by itself.
How Iodine Gets in Water
Iodine occurs naturally in water. It is added to water from volcanic
activity, weathering of rocks and waste from medical applications. In
some cases it is purposely added to water to disinfect it to make the
water safe for human consumption. Radioactive iodine enters water from
medical waste and nuclear accidents.