Biorefinery method and system for isolated environments

Patent metadata

Field	Value
Publication number	US-10479716-B2
Application number	US-201715828809-A
Country	US
Kind code	B2
Filing date	Dec 1, 2017
Priority date	Dec 1, 2016
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A Biorefinery System (BIOSYS) that effectively treats all human activity-derived waste (black water, grey water, and food waste streams) using biological systems and that produces as process by-products: recovered potable water, liberated free oxygen, edible protein cake (with and without lipids), soil amendments, and machinery lube oils. Additionally, the system captures and chemically binds carbon dioxide into microbial cells and associated by-products, thus producing recovered usable returned cabin air.

First claim

The invention claimed is:

1. A method for treating waste comprising the steps of:
a. metabolically decomposing chemical oxygen demand of solid and liquid influents through anaerobic bacteria digestion, wherein said decomposition produces products comprising hydrogen, methane, liquid effluents, and solid effluents;
b. directing said liquid effluents and solid effluents into a tank, said tank housing aerobic bacteria, wherein said aerobic bacteria convert an organic fraction of said effluents into lipid-enriched content microbial solids and produce liquid-phase and gaseous-phase effluents;
c. employing a growth algal reactor wherein green algae attached to a turf matrix to remove nutrients from said liquid-phase effluent and scrub carbon dioxide from said gaseous effluents and wherein said employing step produces whole cells;
d. extracting lipids from said microbial solids and said whole cells; and
e. removing any residual chemicals from said liquid-phase and said gaseous-phase effluents using advanced adsorption polishing with a functionalized mesoporous adsorbent bed.

2. The method of claim 1 wherein said influents comprise black water, grey water, and food waste.

3. The method of claim 1 wherein said hydrogen and methane are used to power fuel cells.

4. The method of claim 1 wherein elements compromising ammonium, phosphate, iron, cobalt, or a combination thereof are integrated with anaerobic bacteria as nutrients from said anaerobic bacteria digestion.

5. The method of claim 1 wherein solids produced in the aerobic bacteria step are used as additional feedstock for the decomposition step.

6. The method of claim 1 wherein said aerobic bacteria step is eliminated, wherein said liquid effluents and said solid effluents are directed into a liquid-solid separation process after said decomposition step.

7. The method of claim 1 wherein said extracting step is performed using carbon dioxide supercritical extraction.

8. The method of claim 1 wherein any non-lipid products from said extracting step are recycled as additional feedstock for said decomposition step.

9. The method of claim 1 wherein said removing step is performed using ordered mesopourous carbon.

10. The method of claim 1 wherein said functionalized mesoporous adsorbent is modified by metal nanoparticles.

11. The method of claim 10 wherein said nanoparticles comprise Cerium(III) chloride.

12. The method of claim 1 wherein said mesoporous adsorbent is doped with silver nanoparticles and iodine.

13. The method of claim 1 further comprising a UV disinfection system.

14. A system for treating human-derived waste and capturing value-added chemicals in an isolated environment comprising a series of biological processes, wherein said series of biological systems comprises:
a. metabolic decomposition of chemical oxygen demand of influents, wherein the products of said decomposition comprise liquid effluents, and solid effluents;
b. conversion of an organic fraction of said liquid effluents and said solid effluents into lipid-enriched content microbial solids and producing liquid-phase effluent and gaseous-phase effluent;
c. removal of nutrients from said liquid-phase effluent;
d. scrubbing carbon dioxide from said gaseous effluents
e. extraction of lipids from said microbial solids; and
f. removal of any residual chemicals from said liquid-phase and said gaseous-phase effluents using advanced adsorption polishing with a functionalized mesoporous adsorbent bed.

15. The system of claim 14 wherein said influents comprise black water, grey water, and food waste.

16. The system of claim 14 wherein said mesoporous adsorbent is doped with silver nanoparticles and iodine.

17. The system of claim 14 wherein said aerobic bacteria step is eliminated, wherein said liquid effluents and said solid effluents are directed into a liquid-solid separation process after said decomposition.

18. The system of claim 14 wherein said metabolic decomposition is performed by anaerobic bacteria digestion.

19. The system of claim 14 wherein said conversion of the organic fraction is performed by aerobic bacteria.

Assignees

• Univ Louisiana At Lafayette

Inventors

• Zappi Mark E
• Gang Daniel
• Revellame Emmanuel
• Chistoserdov Andrei
• Hernandez Rafael
• Bajpai Rakesh
• Sharp Wayne
• Fortela Dhan

Classifications

• Y02W10/37

  using solar energy · CPC title

• Y02W10/30

  Wastewater or sewage treatment systems using renewable energies · CPC title

• C02F3/30

  Aerobic and anaerobic processes · CPC title

• C02F1/281

  using inorganic sorbents · CPC title

• C02F2103/44

  from vehicle washing facilities · CPC title