Abstract: Our method and system for fluid and gas filtering uses nano-porous iron oxide (NIO) particles, specifically Fe2O3 particles, of a specific and unique pore architecture and particle size that enables dual process filtration via concurrent adsorption (via particle exterior) and absorption (via nano-porous particle interior). This concurrent dual process filtration method is far more efficient and faster than any prior art for other flocculation or sorbent techniques that remove toxins from water, including dissolved toxins. NIO has specific utility in removing phosphates, toxic heavy metals, and when used in conjunction with UV light, water-soluble perfluorophosphonic and perfluorosulphonic acid compounds. NIO is projected to perform best as a water purification source point sorbent and finishing agent. The physical properties demonstrated by these nano-porous iron oxide particles of specific size and porosity can also be used in other fluid applications and gas purification applications.

Abstract: In one example, we describe a method and system that uses iron oxide as its sole sorbent, specifically micron-sized nano-porous iron oxide particles. The sorbent is housed inside a horizontally rotating sorbent bed. The horizontally rotating sorbent bed is housed inside of a larger secondary compartment. At the top of the secondary compartment, there is an escaped sorbent particle containment membrane. One example uses a self-cleaning horizontally rotating sorbent drum membrane design that unclogs particulates lodged in the membrane by reversing particulate air flow direction during a small portion (e.g., about 20 degrees) of each full 360 degree rotation of the drum. When air flow passes through the porous horizontally rotating sorbent drum's membrane, which occurs at the location where the rotating sorbent bed membrane comes into contact with the air feed manifold, particulates are air-dislodged from the inner facing surface of the drum's membrane. Other variations are discussed.

Abstract: In one example, we describe a method and system that uses iron oxide as its sole sorbent, specifically micron-sized nano-porous iron oxide particles. The sorbent is housed inside a horizontally rotating sorbent bed. The horizontally rotating sorbent bed is housed inside of a larger secondary compartment. At the top of the secondary compartment, there is an escaped sorbent particle containment membrane. One example uses a self-cleaning horizontally rotating sorbent drum membrane design that unclogs particulates lodged in the membrane by reversing particulate air flow direction during a small portion (e.g., about 20 degrees) of each full 360 degree rotation of the drum. When air flow passes through the porous horizontally rotating sorbent drum's membrane, which occurs at the location where the rotating sorbent bed membrane comes into contact with the air feed manifold, particulates are air-dislodged from the inner facing surface of the drum's membrane. Other variations are discussed.