Did you know that fruit can purify water?
The peels of some popular fruits are efficient absorbers of many harmful pollutants—even heavy metal pollutants. Some can also clear water of harmful bacteria.
It’s an overall vital part of getting clean water in areas of the world that don’t have proper sanitation, but it can also mean something to you at home too.
Before you drink water that comes out of the tap it is processed through filters and chemically treated. These steps are necessary to make sure it is safe.
After the sanitation process, the water enters pipes underground and travels to your home.
Along the way it has the opportunity to pick up plenty of heavy metals you don’t want to drink.
Have you ever seen the inside of an old pipe? It might make you think twice about drinking unfilitered tap water.
1. Peels from Bananas
Minced banana peel can remove lead and copper from water.
Take a look at this study that shows how the peels from bananas can be used repeatedly for water purification.
Researchers determined that the process works because of the chemical composure of the banana peel.
Nitrogen and sulfur atoms as well as carboxylic acids draw metals that have a positive charge out of water.
The study was intended to find low cost ways to purify runoff from mining sites, industrial waste areas and farms.
2. Apple Peels and Tomato Peels
Researchers at the National University of Singapore discovered the pollutant absorbing ability of apple and tomato peels while looking for ways that rural villages could clean contaminated water.
The peels of both apples and tomatoes effectively removed heavy metals from water.
3. Lime Juice and Sunlight
The Bloomberg School of Public Health at Johns Hopkins University conducted a study of citrus fruit as a water purification method. When combined with a solar treatment method, lime juice effectively removed many harmful types of bacteria from water including E. Coli.
Consider the at-home benefits of these recent studies. Contamination of public tap water—water that you think is safe to drink—is more common than you think. Consider the analysis of the Washington Post, who reported on rising levels of lead in Washington, D.C.’s water supply in a 2009 article.
The article references a 2009 study conducted at Virginia Tech that examined the high levels of lead in D.C. drinking water and resulting levels of lead in blood samples from children.
Researchers found that children in specific neighborhoods were being exposed to harmful lead from water that was contaminated by ground sources that seeped into old pipes. At home, you can use these water purification techniques to remove harmful heavy metals from your water.
How To Do It
Begin by peeling your apples and tomatoes or bananas and soak them in a rubbing alcohol solution.
Next, remove the peels and let them dry out.
Once completely desiccated, just put the peels (you can mince them) in a container of water and wait.
After a few hours, remove the peels from the water and it’s ready to drink.
Note: this method doesn’t remove pathogens from the water, just a wide variety of pollutants.