# US 2025/0081908 A1 · Microalgae-based soil inoculating system and methods of use

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- Number: US 2025/0081908 A1
- Document ID: US20250081908A1
- Status: Published application
- Kind: A1
- Application number: 18/889,198
- Filed: 2024-09-18
- Published: 2025-03-13
- Earliest claimed: 2011-05-03
- Assignees: Myland Limited
- Applicants: Myland Company, Inc
- Inventors: Andrew D. Ayers; Mark R. Edwards; Dane Hague; Robert Thompson
- Web page: https://patentgrep.com/patent/US20250081908A1

## CPC

- A01G 33/00: Cultivation of seaweed {or algae}
- C05D 9/02: containing trace elements
- C05F 11/08: Organic fertilisers containing added bacterial cultures, mycelia or the like
- C05G 5/20: Liquid fertilisers (layered or coated C05G5/30; incorporated into a matrix C05G5/40)
- C12M 21/02: {Photobioreactors (culturing algae A01G33/00, A01H4/001, C12N1/12)}
- C12M 23/52: {Mobile; Means for transporting the apparatus (transportable laboratories B01L1/52)}
- C12M 29/04: {Filters; Permeable or porous membranes or plates, e.g. dialysis}
- C12M 37/00: {Means for sterilizing, maintaining sterile conditions or avoiding chemical or biological contamination (C12M23/38 takes precedence; filtration in general and filters per se B01D24/00-B01D41/00; autoclaves B01J3/04; treatment of microorganisms with electrical or wave energy C12N13/00)}
- C12M 43/00: {Combinations of bioreactors or fermenters with other apparatus}
- C12N 1/12: Unicellular algae; Culture media therefor (as new plants A01H13/00)
- Y02W 10/37: using solar energy
- A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12)
- C05D: INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05F: ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05G: MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS (organic fertilisers containing added bacterial cultures, mycelia, or the like C05F11/08; organic fertilisers containing plant vitamins or hormones C05F11/10); FERTILISERS CHARACTERISED BY THEIR FORM
- C12M: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; {APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS}
- C12N: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA (microbiological testing media C12Q1/00)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

Some embodiments include a microalgae culturing system including a bioreactor adapted to propagate microalgae in a culture solution using in combination at least one of natural and artificial light, and at least one nutrient including at least a carbon source, where the microalgae are freely suspended in and form part of the culture solution. A microalgae feed source is coupled to the bioreactor and a first controller between a water conditioning assembly and the bioreactor. The water conditioning assembly is coupled as an input of supply water to the bioreactor, and configured to condition the supply water to a specified purity that enables substantially unhindered growth of the microalgae in the culture solution to a specified concentration, and the first controller is configured to control supply of the microalgae feed source to the bioreactor.

## Claims

### Claim at position 1

1-34. (canceled)

### Claim 35

A system for soil enrichment comprising:
one or more bioreactors,
an ozone generator,
a nutrient feed supply, and
a carbon dioxide source;
wherein the carbon dioxide source is configured to supply carbon dioxide to a lower part of each of the one or more bioreactors;
wherein the system is configured to receive water from an on-site water source of a farm;
wherein the system is configured to provide live microalgae cells to an effluent of the one or more bioreactors; and
wherein the effluent is configured to feed the live microalgae cells to a water flow of an irrigation system.

### Claim 36 (depends on 35)

The system of claim 35,
further comprising one or more monitoring devices.

### Claim 37 (depends on 36)

The system of claim 36,
wherein the one or more monitoring devices are configured to measure a microalgae titer in the effluent.

### Claim 38 (depends on 36)

The system of claim 36,
wherein the one or more monitoring devices are configured to measure nutrient content in the effluent.

### Claim 39 (depends on 35)

The system of claim 35,
wherein the system is configured to support a flow-through capacity of about 0.35-0.7 gallons per minute.

### Claim 40 (depends on 39)

The system of claim 39,
wherein the system is configured to support a field in a range of 200-1000 acres.

### Claim 41 (depends on 35)

The system of claim 35,
further comprising a flow-imaging device configured to generate images of the live microalgae cells.

### Claim 42 (depends on 35)

The system of claim 35,
wherein the system is placed within an enclosure.

### Claim 43 (depends on 35)

The system of claim 35,
wherein the one or more bioreactors comprise light-permeable walls.

### Claim 44 (depends on 36)

The system of claim 36,
wherein the system includes eight bioreactors.

### Claim 45 (depends on 36)

The system of claim 36,
further including the ozone generator.

### Claim 46 (depends on 45)

The system of claim 45,
further including a pressurized air supply.

### Claim 47 (depends on 46)

The system of claim 46,
further including an ultra-violet light system.

### Claim 48 (depends on 47)

The system of claim 47,
further comprising a water tank; and
where in the water tank is configured to receive the water from the on-site water source of the farm.

### Claim 49 (depends on 48)

The system of claim 48,
wherein the system is configured to provide about 800,000 live microalgae cells per second at a water flowrate of about 0.35 gallons per minute to the effluent of the one or more bioreactors.

### Claim 50 (depends on 49)

The system of claim 49,
further comprising a mechanical agitator.

### Claim 51

A system for soil enrichment comprising:
a trailer,
one or more bioreactors,
an ozone generator,
a nutrient feed supply, and
a carbon dioxide source;
wherein the one or more bioreactors, the ozone generator, the nutrient feed supply, and the carbon dioxide source are each mounted on the trailer;
wherein the carbon dioxide source is configured to supply carbon dioxide to a lower part of each of the one or more bioreactors;
wherein the system is configured to receive water from an on-site water source of a farm;
wherein the system is configured to provide live microalgae cells to an effluent of the one or more bioreactors; and
wherein the effluent is configured to feed the live microalgae cells to a water flow of an irrigation system.

### Claim 52 (depends on 51)

The system of claim 51,
wherein the system is configured to support a field in a range of 200-1000 acres.

### Claim 53 (depends on 52)

The system of claim 52,
wherein the system is configured to support a flow-through capacity of about 0.35-0.7 gallons per minute.

### Claim 54 (depends on 53)

The system of claim 53,
wherein the system is configured to provide about 800,000 live microalgae cells per second at a water flowrate of about 0.35 gallons per minute to the effluent of the one or more bioreactors.

### Claim 55

A system for soil enrichment comprising:
a trailer,
one or more bioreactors,
an ozone generator,
a nutrient feed supply,
a carbon dioxide source, and
one or more monitoring devices;
wherein the one or more bioreactors, the ozone generator, the nutrient feed supply, and the carbon dioxide source are each mounted on the trailer;
wherein the carbon dioxide source is configured to supply carbon dioxide to a lower part of each of the one or more bioreactors;
wherein the system is configured to receive water from an on-site water source of a farm;
wherein the system is configured to support a flow-through capacity of about 0.35-0.7 gallons per minute;
wherein the system is configured to provide about 800,000 live microalgae cells per second at a water flowrate of about 0.35 gallons per minute to an effluent of the one or more bioreactors; and
wherein the effluent is configured to feed the live microalgae cells to a water flow of an irrigation system.
