Filtration process and apparatus
AssigneeHoechst Aktiengesellschaft
InventorEkkehard Beer
Life of this patent
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Abstract
Disclosed is a filtration process for separating solid, sludge-like and dissolved constituents from effluent, comprising the steps of introducing under an elevated pressure the effluent into a tube-shaped filter having a closed end and an open end, the tube-shaped filter being comprised of a semi-permeable material, the point of introduction of the effluent being initially near the closed end of the filter; moving the point of introduction of the effluent away from the closed end and toward the open end of the filter; and adjusting the rate of introduction of the effluent into the filter to achieve a predetermined content of solids in the concentrate remaining inside the filter. Also disclosed is a device for carrying out this process.
Claims19
A filtration process for separating solid, sludge-like and dissolved constituents from effluent, comprising the steps of:
- introducing under an elevated pressure the effluent into a tube-shaped filter having a closed end and an open end, said tube-shaped filter being comprised of a semi-permeable material, the point of introduction of the effluent being initially near the closed end of said filter;
- moving the point of introduction of the effluent away from the closed end and toward the open end of said filter;
- adjusting the rate of introduction of the effluent into said filter to achieve a predetermined content of solids in the concentrate remaining inside of said filter;
- and
- forming a solid-filled envelope of said filter beginning at said closed end and progressing toward said open end of said filter.
A filtration device for separating solid, sludge-like and dissolved constituents from effluent, comprising:
- a filling tube;
- a pump for introducing effluent into said filling tube under an elevated pressure;
- a tube-shaped filter having a closed end and an open end which surrounds said filling tube, said tube-shaped filter being comprised of a semi-permeable material;
- means for moving said filter with respect to said filling tube, so that the closed end of said filter moves away from said filling tube;
- and
- means for forming a solid-filled envelope of said filter beginning at said closed end and progressing toward said open end of said filter.
Dependencies are inferred from the claim text.