Filtering nanoparticles by bonding with microparticles

摘要

Disclosed are embodiments for methods and devices for filtering undesired particles from a medium by bonding the undesired particles to attachment particles. In some embodiments, the methods include receiving a plurality of attachment particles into a volume, where the volume contains a plurality of undesired particles and the medium. The method may also include contacting the plurality of attachment particles and the plurality of undesired particles contained in the medium, resulting in formation of bonded particles in the medium. Contacting may result in collisions, causing bonding between some undesired particles and some attachment particles. Some embodiments of the method also include removing at least a portion of the medium and bonded particles from the volume through a filter coupled to the volume with an exhaust, the filter configured to capture the bonded particles while allowing the medium to pass through.

主权项

1. A method for filtering particles from a medium by bonding the particles to attachment particles, the method comprising:
providing a plurality of attachment particles, and a medium suspected of containing a plurality of undesired particles, wherein the attachment particles comprise starch microparticles, cellulose microparticles, chitin microparticles, derivatives thereof, or mixtures thereof; contacting the attachment particles, the medium, and the undesired particles such that the attachment particles and undesired particles can bond to form bonded particles; and separating bonded particles from the medium.