Biorefinery method and system for isolated environments

Patent metadata

Field	Value
Publication number	US-10947144-B2
Application number	US-201916600619-A
Country	US
Kind code	B2
Filing date	Oct 14, 2019
Priority date	Dec 1, 2016
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

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. An influent biorefinery method comprising the steps of:
a. anaerobically digesting an influent to produce effluents comprising simple organic acids and residual soluble chemical oxygen demand;
b. processing said simple organic acids and said soluble chemical oxygen demand to produce lipid and protein enriched microbial solids;
c. extracting said lipids from at least a portion of said lipid and protein enriched microbial solids to produce at least one value-added product;
d. reacting at least a portion of said lipid and protein enriched microbial solids to produce a second at least one value-added product and an aqueous effluent; and
e. adsorption polishing said aqueous effluent to produce a third at least one value-added product.

2. The method of claim 1 wherein said anaerobically digesting comprises metabolically decomposing chemical oxygen demand of said influent.

3. The method of claim 1 wherein said processing comprises directing said effluents into a tank, said tank housing aerobic bacteria, wherein said aerobic bacteria convert an organic fraction of said effluents into said lipid and protein enriched microbial solids.

4. The method of claim 1 wherein said at least one value-added product comprises at least one from the group consisting of: nutraceutical oil, lube oil, lipified cake as a protein source, and soil fertility amendment.

5. The method of claim 1 wherein said second at least one value-added product comprises at least one from the group consisting of: enriched ambient air and whole algal cells.

6. The method of claim 1 wherein said adsorption polishing comprises removing any residual chemicals from said aqueous effluent using advanced adsorption polishing with a functionalized mesoporous adsorbent bed.

7. The method of claim 1 wherein said third at least one value-added product comprises potable water.

8. An influent biorefinery method comprising the steps of:
a. anaerobically digesting said an influent to produce an effluent slurry comprising simple organic acids and residual soluble chemical oxygen demand;
b. separating said effluent slurry into digested solids, liquid-phase effluents, and ambient air;
c. reacting said liquid-phase effluents and said ambient air to produce at least one value-added product, whole algal cells, and an aqueous effluent;
d. extracting lipids from at least a portion of said whole algal cells to produce at least one value-added product; and
e. adsorption polishing said aqueous effluent to produce a third at least one value-added product.

Assignees

• Univ Louisiana At Lafayette

Inventors

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

Classifications

• C05F17/50

  Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment · CPC title

• C05F3/04

  from human faecal masses · CPC title

• C02F1/32

  with ultraviolet light · CPC title

• Y02C20/40

  of CO2 · CPC title

• B01J20/0207

  Compounds of Sc, Y or Lanthanides · CPC title