NATURE'S BEST FILTRATION SYSTEM
The flow of sap passing through the sapwood of trees.
In vascular plants and trees there is a tissue called 'xylem' which transports water and nutrients from the roots to the leaves. The cohesion between water molecules and the evaporation makes the sap flow.
The sapwood is made from small tubes, or conduits, that are connected to eachother through porous membranes. The pores of these membranes are a few nanometers to a few hundred nanometers wide which is way smaller than most contaminants present in water.
That means it filters dust, bacteria (like Shigella, E- coli, Vibrio, and Salmonella) and protozoans (such as Entamoeba, Giardia, and Cryptosporidium) and much more.
Using the Sapwood waterfilter
We made a simple stainless steel part that holds a slice of wood.
Forcing water through the sapwood.
We use a piece of a branch from a non-flowering tree like pine or cedar.
The filter can be used by mounting the branch in our stainless steel tube.
The pores effectively trap contaminants as clean water passes through.
Now we have a clean drinking water!