IP Library Granted Patent US 7,267,773
Granted Patent B2
US 7,267,773 · App. 11/101,389 · Granted Sep 11, 2007

Integrated system and method for purifying water, producing pulp and paper, and improving soil quality

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Quick Facts
Patent No.
US 7,267,773
App. No.
11/101,389
Granted
Sep 11, 2007
Kind
B2
Abstract

An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suitable plant matter in an attached periphyton bed, harvesting the algae/plant matter to produce a wet algal biomass, and mixing the wet biomass with a shredded fibrous material to produce a pulp. The pulp can be molded into a biodegradable package that can be utilized as a delivery vehicle to a site having nutrient-enrichable soil, where the package can be used as a soil amendment after being used as a delivery vehicle. The pulp can also be made into a paper product that is biodegradable and has the characteristic of enhancing soil quality.

Claims (38)

1. A system for producing a paper product, the system comprising:

a bed for culturing plant matter;

means for admitting water into a bed,

wherein the plant matter absorbs pollutants from the water;

means for harvesting the plant matter,

the harvested plant matter forming a wet biomass;

means for mixing the wet biomass with a shredded material for producing a pulp; and

means for producing a paper product from the pulp.

2. The system recited in claim 1 further comprising:

means for partially dewatering the biomass,

for thickening the biomass prior to mixing.

3. A system for producing a biodegradable paper product, the system comprising:

a bed for culturing plant matter;

means for admitting water into the bed,

wherein the plant matter absorbs pollutants from the water;

means for harvesting the plant matter,

the harvested plant matter forming a wet algal biomass;

means for mixing the wet biomass with a shredded material, for producing pulp; and

means for producing a paper product from the pulp.

4. The system recited in claim 3 , further comprising:

means for partially drying the biomass,

for thickening the biomass prior to mixing.

5. A system for producing a paper product, the system comprising:

a bed for culturing plant material capable of absorbing or sequestering a pollutant from water;

means for admitting water into the bed;

means for harvesting the plant material,

thereby removing the pollutant from the bed,

the harvested plant material forming a wet biomass;

means for mixing the wet biomass with a shredded material for producing a pulp; and

means for producing a paper product from the pulp.

6. The system recited in claim 5 , further comprising:

means for partially dewatering the biomass, for thickening the biomass prior to mixing.

7. A system for producing packaging, the system comprising:

a bed adapted to support the growth of plant material adapted to remove at least one pollutant from water and to expose the plant material to water introduced into the bed;

a water supply adapted to introduce water to be bioremediated into the bed;

a harvester adapted to harvest plant material grown in the bed, the plant material subjected to water to be bioremediated;

a mixer adapted to mix harvested plant matter with a shredded material to produce a pulp; and

a former adapted to form packages from the pulp.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Jan 17, 2020
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: LEIDOS, INC.
Reel/Frame 051632/0742 →
RELEASE OF SECURITY INTEREST Recorded Jan 17, 2020
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: LEIDOS, INC.
Reel/Frame 051632/0819 →
SECURITY INTEREST Recorded Aug 25, 2016
From: LEIDOS, INC.
To: CITIBANK, N.A.
Reel/Frame 039809/0801 →
SECURITY INTEREST Recorded Aug 25, 2016
From: LEIDOS, INC.
To: CITIBANK, N.A.
Reel/Frame 039818/0272 →
CHANGE OF NAME Recorded Apr 11, 2014
From: SCIENCE APPLICATIONS INTERNATIONAL CORPORATION
To: LEIDOS, INC.
Reel/Frame 032663/0841 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2005
From: JENSEN, KYLE R.; BROSCH, R. GLENN; JENSEN, ROXANNE M.
To: SCIENCE APPLICATIONS INTERNATIONAL CORPORATION
Reel/Frame 016464/0921 →