Schauer says ground-up cilantro can be inserted into a tube into which water is passed through. The cilantro allows the water to trickle out but absorbs metals, leaving cleaner drinking water. … Schauer says a handful of cilantro will nearly cleanse a pitcher full of highly contaminated water of its lead content.

Which plants naturally purify water?

Bulrushes (Scirpus spp.) and rushes (Juncus spp.) are excellent water purifiers. They remove excess nutrients from the water as well as oil and bacteria such as E.

How do you remove heavy metals from water naturally?

For the removal of heavy metals from water sources, natural materials, such as spent-coffee-grains or orange/banana/chestnut peels, appear to offer a potential cheap alternative to more sophisticated and costly technologies currently in use.