Method of removing fine suspended solids from effluent streams
AssigneeChampion International Corporation
InventorHenry A. Fremont
Life of this patent
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Abstract
The method of removing fine suspended solids from an effluent stream comprising passing said stream through at least two contiguous layers of an open-celled compressible hydrophobic polymeric material and compressing said layers to remove the solids loaded therein to regenerate said material, said material being layered so that the open cells of each layer are randomly oriented.
Claims14
The method of removing fine suspended solids from an effluent stream comprising passing said stream through at least two contiguous layers of an open-celled compressible hydrophobic polymeric material and compressing said layers to remove the solids loaded therein to regenerate said material, said layers being spaced so that the open-celled pores of each layer are randomly oriented with respect to the pores of each adjacent layer.
The method of removing fine suspended solids from a paper mill secondary effluent comprising passing said effluent through a plurality of contiguous layers of a reticulated polyester polyurethane foam of the Q-type having from about 60 to about 100 pores per lineal inch and compressing said layers when they no longer are capable of removing solids from said effluent to remove solids loaded therein to regenerate said layers, said layers being spaced so that the open-celled pores of each layer are randomly oriented with respect to the pores of each adjacent layer and at least two layers have a different number of pores per lineal inch.
The method of removing fine suspended solids from a paper mill secondary effluent comprising passing said effluent through a plurality of contiguous layers of a reticulated polyester polyurethane hydrophobic foam of the Q-type having from about 60 to about 100 pores per lineal inch and compressing said layers when they no longer are capable of removing solids from said effluent to remove solids loaded therein to regenerate said layers, said layers being spaced so that the open-celled pores of each layer are randomly oriented with respect to the pores of each adjacent layer.
Dependencies are inferred from the claim text.