2006-11-20 08:47:21 · 2 answers · asked by Steven Haywood 1 in Environment
One major example is the use of carbon nanotubes for water filtration. Carbon nanotubes are extremely fine, and are replacing charcoal in the highest tolerance water purity applications.
2006-11-28 01:57:06 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
A strong influence of nanochemistry on waste-water treatment, air purification and energy storage devices is to be expected. Mechanical or chemical methods can be used for effective filtration techniques. One class of filtration techniques is based on the use of membranes with suitable hole sizes, whereby the liquid is pressed through the membrane. Nanoporous membranes are suitable for a mechanical filtration with extremely small pores smaller than 10 nm (“nanofiltration”). Nanofiltration is mainly used for the removal of ions or the separation of different fluids.
2006-11-28 16:13:40 · answer #2 · answered by TERRI T 3 · 0⤊ 0⤋