Indo-American Teen Scientist finds a Cheap Way to make Sea Water drinkable
Making the sea water drinkable will be a piece of cake now as a new method has been invented to clean the sea water in a cheap and practically possible manner. The method was revealed by an Indo-American teen scientist Chaitanya Karamchedu from Portland, Oregon. According to his experiment, it is feasible to easily access way to provide clean water from salt water.
Karamchedu studying in Jesuit High School/Portland State University used hydrogel based desalination technique using saponified starch grafted polyacrylamide’s hydrophilic properties to harvest fresh water. The process does not require any thermal and electrical energy and filtered water has a comparable conductivity of 306.32 µS/cm which is comparable to the conductivity of distilled water at 200 µS/cm.
What’s striking is that the process has negligible pre-treatment and post-treatment cost which makes it usable on a small scale, especially for those people who are prone to lack of fresh water.
While testing the mass and conductivity of the treated water, it was found that the water had a total dissolved solids concentration of 513 mg/L which is well within WHO standard at <600 mg/L, compared to 35,000 mg/L for seawater. Read more…