Deep bed filtration system
OwnerGene Hirsinventor
Life of this patent
Estimating the term…
Abstract
A deep bed filter principally used for filtration of contaminated aqueous fluid comprises a layer of polymeric cylindrical particles in combination with a layer of anthracite particles and a layer of sand. The polymeric cylindrical particles are approximately 1.5 millimeters in diameter and in the range of 6-12 millimeters high, with a specific gravity of approximately 1.15. When the filter is backwashed particles of anthracite mix with a portion of the polymeric particle layer, thereby creating larger surface voids for penetration of larger contaminant particles into the filter.
Claims5
A deep bed filter comprising:
- a first layer of anthracite particles;
- a second layer of cylindrical polymeric particles superimposed over said layer of anthracite particles, said cylindrical particles having a diameter of approximately 1.5 millimeters, a height in the range of 6 to 12 millimeters, and a specific gravity of approximately 1.15;
- and
- a third layer intermediate of said first and second layers wherein said third layer comprises a significant mixture of said cylindrical polymeric particles and said anthracite particles.
A deep bed filter comprising:
- a first layer of anthracite particles;
- a second layer of cylindrical polymeric particles superimposed over said layer of anthracite particles, said cylindrical particles having a diameter of approximately 1.5 millimeters, a height in the range of 6 to 12 millimeters, and a specific gravity of approximately 1.15;
- and
- a third layer intermediate of said first and second layers wherein said third layer comprises a significant mixture of said cylindrical polymeric particles and said anthracite particles said mixture formed upon backwashing of said first and second layers.
A deep bed filter comprising:
- a first layer of anthracite particles;
- a second layer of cylindrical polymeric particles superimposed over said layer of anthracite particles, said cylindrical particles having a diameter of approximately 1.5 millimeters, a height in the range of 6 to 12 millimeters, and a specific gravity of approximately 1.15;
- and
- a means for backwashing the first and second layers to form a significant mixture of said first and second layers, said mixture intermediate of said first and second layers.
Dependencies are inferred from the claim text.