초록 ▼

Disclosed is the filtration of fluids by utilizing porous biogenetic silica ash devoid of fiber alone or combined with additives. The biogenetic silica may be in particles or prilled or pelleted. Solid particles and liquids are filtered from gases and liquids by passing them through the biogenetic s

Disclosed is the filtration of fluids by utilizing porous biogenetic silica ash devoid of fiber alone or combined with additives. The biogenetic silica may be in particles or prilled or pelleted. Solid particles and liquids are filtered from gases and liquids by passing them through the biogenetic silica. The additives are materials which attract the impurities into the pores of the biogenetic silica, such as water-swellable polymers or carbon remaining on the biogenetic silica when incompletely pyrolyzed. The carbon can be activated.

대표청구항

A filter medium for filtering fluid comprising, a closed container having an inlet and an outlet, biogenetic silica having a porosity of at least 50 percent by volume disposed in the closed container, and the inlet and the outlet arranged to direct flow of the fluid through the biogenetic silica.

A filter medium for filtering fluid comprising, a closed container having an inlet and an outlet, biogenetic silica having a porosity of at least 50 percent by volume disposed in the closed container, and the inlet and the outlet arranged to direct flow of the fluid through the biogenetic silica.