Teen scientist finds a solution to troubling water quality issues

http://www.eurekalert.org/pub_releases/2015-07/asoa-js072915.php

Public Release: 29-Jul-2015
Just say 'No' to drugs -- in water
Teen scientist finds a solution to troubling water quality issues
American Society of Agronomy

Remember the science fair?

For some of us it was an exciting time of creative experimentation. For others it was a time of botched and badly displayed data. For 16-year-old Maria Elena Grimmett, it's a blast. And she isn't peddling baking soda and vinegar volcanoes.

Grimmett is tackling serious water quality issues that threaten the health of rivers, streams and groundwater. When she was just 14 years old, Grimmett was the youngest person published in the Journal of Environmental Quality. Now at 16, she has just put the final touches on her research of a plastic adsorbent that removes pharmaceutical drugs from water sources.

Grimmett's parents aren't water scientists. Her interest in science is self-propelled. The journey to publication was a product of gumption, passion, and a supportive scientific community. It began with a collection of events that led her to water quality research. Grimmett remembers classroom experiments in the third grade. "My science teacher really made experiments fun," says Grimmett, "I started to look forward to the science fair."

•••••

"It's scary that 80% of rivers, streams, and groundwater in this country are contaminated by at least one organic contaminant," says Grimmett. Modern water treatment tactics are good for removing common contaminants, but many pharmaceuticals and other chemicals escape treatment simply due to their extreme diversity. The drugs get into the water after excretion by humans and animals that take them medicinally. One drug in particular, sulfamethazine, is a common antibiotic fed to livestock to promote growth and to prevent diseases. "Ninety percent of it is not metabolized and ends up in water sources," says Grimmett.

For six years, Grimmett used her summers to experiment with sulfamethazine and specific types of polymer resins, which she describes as "just small plastic beads with tiny gaps." Water is passed through a container loaded with resins. The offending drug clings to the tiny spaces in the resins, leaving the water to flow out drug-free.

•••••

Because of a rule restricting lab use by anyone under 16, Grimmett commandeered her family's garage and the dining room for her experiments. Her proud parents didn't resent the invasion of pipettes and test tubes too much, mostly because Grimmett was willing to do all the work herself.

"She was able to do it all at home due to her determination, multiple contacts with scientists and companies, and I suppose my wife and I who were willing to play ball," says Grimmett's father, Michael.

Grimmett has no trouble being taken seriously by her peers in the science community. "Everyone is so supportive," she says, "Whenever I read articles and have questions for the author, they are always responsive and helpful."

•••••