Now Cheaper and Easier Method to Turn Salt Water into Drinkable Fresh Water

An Indian-American student has found a cheaper and easier method to turn salt water into drinkable fresh water and his research has caught the attention of major technology firms and universities. Chaitanya Karamchedu from Portland, Oregon, is turning heads across the country all because of a science experiment that began in his high school classroom.

 The Jesuit High School Senior told KPTV that he has big plans of changing the world. “1in8peopledonothaveaccess to clean water, it’ sacrying issue that needs to be addressed,” said Karamchedu.

He made up his mind to address the matter himself. “The best access for water is the sea, so 70% of the planet is covered in water and almost all of that is the ocean, but the problem is that’s salt water,” said Karamchedu. Isolating drinkable water from the ocean in a cost effective way is a problem that has stumped scientists for years. “Scientists looked at desalination, but it’s all still in accessible top laces and it would cost too much to implement on a largescale,”Karamchedu said. Karamchedu figured it out, on his own, in a high school lab. “The real genesis of the idea was realising that sea water is not fully saturated with salt,” he was quoted as saying. By experimenting with a highly absorbent polymer, he discovered a cost effective way to remove salt from ocean water and turn it into freshwater. “It’s not bonding with water molecules, it’s bonding to the salt,” said Karamchedu.

“People have been looking at the problem from one view point, how do we break those bonds between salt and the water? Chai came in and thought about it from a completely different angle,” said Jesuit High School Biology Teacher Dr. Lara Shamieh. “People were concentrated on that 10% of water that’s bonded to the salt in the sea and no one looked at the 90% that was free. Chai just looked at it and said if 10% is bonded and 90% is free, then why are we so focused on this 10%, let’s ignore it and focus on the 90,” said Shamieh.

It is a breakthrough that is estimated to impact millions of lives if ever implemented on a mass scale. “What this is compared to current techniques, is that it’s cheap and accessible to everyone, everyone can use it,” said Shamieh. Scientists across the country are taking note. He won a USD 10,000 award from the US Agency for International Global Development at Intel’s International Science Fair and second place at MIT’s TechCon Conference where he won more money to continue his research. “They were very encouraging, they could see things into it that I couldn’t, because they’ve been working their whole lives on this,” said Karamchedu.