초록 ▼

A filtrating method for removing suspended solids from a liquid by passing the liquid through a layer of filter medium in a magnetic field, the filter medium layer comprising a collection of organic fibers and ferromagnetic metal fibers. Usual suspended solids and relatively large magnetic suspended

A filtrating method for removing suspended solids from a liquid by passing the liquid through a layer of filter medium in a magnetic field, the filter medium layer comprising a collection of organic fibers and ferromagnetic metal fibers. Usual suspended solids and relatively large magnetic suspended solids are arrested by the organic fibers, while fine magnetic suspended solids are arrested by the ferromagnetic metal fibers subjected to the action of the magnetic field. The collection of fibers achieves a high filtration efficiency, has outstanding regeneration characteristics, withstands continued use and is therefore very useful as a filter medium.

대표청구항 ▼

A filtration method characterized in that a prefilt containing suspended solids is passed through a layer of filter medium in a magnetic field to remove the suspended solids from the prefilt, the filter medium layer comprising a collection of globular or ellipsoidal fiber lumps each formed by interl

A filtration method characterized in that a prefilt containing suspended solids is passed through a layer of filter medium in a magnetic field to remove the suspended solids from the prefilt, the filter medium layer comprising a collection of globular or ellipsoidal fiber lumps each formed by interlocking short organic fibers and having short corrosion-resistant amorphous ferromagnetic metal fibers adhered to the surface of the lump. A filtration method characterized in that a prefilt containing suspended solids is passed through a layer of filter medium in a magnetic field to remove the suspended solids from the prefilt, the filter medium layer comprising a collection of globular or ellipsoidal fiber lumps each formed by interlocking short organic fibers and having short corrosion-resistant amorphous ferromagnetic metal fibers partially inserted into the lump so that the metal fibers project from the surface of the lump.