Tree barks can be used to clean polluted water according to a study conducted by Jennifer Tamayo of Department of Science and Techonology (DOST-FPRDI) in Los Banos, Laguna. The tree barks, which are considered wastes, can now be used to absorb atomic particles of lead and chromium. They can remove 96%-100% lead and 84%-90% chromium from a polluted water. It is the tannin, lignin, organic acid, and cellulose content of the barks that make these barks trap lead and chromium. Lead and chromium are known to be harmful to humans. Lead is poisoning while chromium is listed as a cancer-causing agent. The tree barks that make good anti-pollutants come from the following trees: acacia, bagras, river red gum, gubas, moluccan, sau, kaatoan bangkal, and yemane.
This is good news for all of us. I hope someday, we'd be able to see clean rivers again.
Are there tree barks that clean corruption in politics?