Additive infused biochar

Patent metadata

Field	Value
Publication number	US-10118870-B2
Application number	US-201615393176-A
Country	US
Kind code	B2
Filing date	Dec 28, 2016
Priority date	Jun 6, 2011
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

A method for creating treated biochar is provided that includes infusing a liquid additive into the pores of biochar, such as a fertilizer solution or other additive beneficial to plant growth. The method further includes the removal of materials and/or other additives from the pores of biochar. The present invention further provides biochar having pores filled with a liquid solution containing an additive, where the additive may include, but not be limited to, an additive beneficial to plant growth.

First claim

We claim:

1. A method for creating treated biochar having pores, the method comprising the step of infusing a liquid additive into the pores of the biochar which does not include exclusively submersing the biochar in a liquid solution to infuse the liquid additive into the pores of the biochar and which does not include the exclusive use of steam to infuse the liquid additive into the pores of the biochar.

2. The method of claim 1 where the liquid additive is a fertilizer solution.

3. The method of claim 1 where the liquid additive is infused into the pores of the biochar using positive or negative pressure.

4. The method of claim 1 where the liquid additive is infused into the pores of the biochar using a surfactant.

5. The method of claim 1 where the pores of the biochar are washed prior to infusion with the liquid additive.

6. The method of claim 1 where the moisture content of the pores of the biochar is adjusted prior to infusion with the liquid additive.

7. The method of claim 2 where the liquid additive is 1000 ppm NO3 − N fertilizer solution.

8. The method of claim 2 where the liquid additive is solution of water and NPK based fertilizer.

9. The method of claim 4 where the surfactant treatment comprises adding 1% surfactant to the liquid additive.

10. The method of claim 1 where the liquid additive is a water based solution that includes an additive selected from the group consisting of nitrogen, phosphorous, potassium, urea, ammonium nitrate, calcium nitrate, ammonium sulfate, monoammonium phosphate, ammonium polyphosphate, Cal-Mag fertilizers, micronutrient fertilizers, fungicides, insecticides, nematicides, bacteriacides, fumigants, plant hormones, beneficial microbial spores, secondary signal activators, calcium, magnesium, sulfur, boron, zinc, iron, manganese, molybdenum, copper and chloride.

11. Biochar having pores where at least 25% of the pores by volume are filled with a liquid solution or suspension containing an additive, where the liquid is infused into the pores of the biochar.

12. The biochar of claim 11 , where the liquid is a fertilizer solution.

13. The biochar of claim 12 where the fertilizer solution includes a chemical element selected from the group consisting of nitrogen, phosphorous, potassium, urea, ammonium nitrate, calcium nitrate ammonium sulfate, monoammonium phosphate, ammonium polyphosphate, Cal-Mag fertilizers and micronutrient fertilizers.

14. The biochar of claim 11 where the liquid solution includes a substance selected from the group consisting of fungicides, insecticides, nematicides, bacteriacides, fumigants, plant hormones, larvicides, enzymes, beneficial microbial spores, and secondary signal activators.

15. The biochar of claim 11 where the liquid solution includes a beneficial macro- and micro-nutrient.

16. The biochar of claim 15 where the beneficial macro- and micro-nutrient is selected from the group consisting of calcium, magnesium, sulfur, boron, zinc, iron, manganese, molybdenum, copper and chloride.

17. The biochar of claim 11 where the liquid solution includes 2,1,3-Benzothiadiazole (BTH).

18. The biochar of claim 11 where the liquid solution includes a signaling agent.

19. The biochar of claim 11 where the liquid solution includes a plant pathogen.

20. The biochar of claim 11 where the liquid solution includes a biopesticide.

21. The biochar of claim 11 where the liquid solution includes an herbicide.

22. The biochar of claim 11 where the liquid solution includes a fungicide.

23. The biochar of claim 11 where the liquid solution includes a plant hormone.

24. The biochar of claim 11 where the liquid solution includes one or more microbes.

25. The biochar of claim 11 where the biochar is sterilized before being infused with the liquid solution or suspension containing an additive.

26. The biochar of claim 11 where the additive includes mycorrhizal fungi.

27. A method for creating enhanced biochar having pores, the method comprising the step of infusing a liquid solution or suspension containing nutrients, vitamins, drugs, microbes and/or other supplements into the pores of the biochar which does not include exclusively submersing the biochar in the liquid solution or suspension to infuse the liquid solution or suspension into the pores of the biochar and which does not include the exclusive use of steam to infuse the liquid solution or suspension into the pores of the biochar.

28. The method of claim 27 where the nutrients, vitamins, drugs, microbes, and/or other supplements are infused into the pores of the biochar using positive or negative pressure.

29. The method of claim 27 where the nutrients, vitamins, drugs, microbes and/or other supplements are infused into the pores of the biochar using a surfactant.

30. The method of claim 27 where the liquid solution or suspension includes an additive selected from the group consisting of water, liquid inorganic and organic compounds of different composition and polarity, water solutions of salts, water solutions of acids, water solutions of bases, water solutions of organic compounds, water solutions of inorganic compounds, liquid organic compounds, liquid inorganic compounds, solvents, mineral oils, organic oils, turpentine, olive oil, palm oil, mineral extracts, organic extracts, extracts containing organic compounds, extracts of inorganic compounds, slurries, suspensions, slurries comprising solid phases including inorganic oxides, hydroxides, salts, organometallic complexes, nano-dispersed solids, micro-dispersed solids, carbon-based clusters, and fine particles, and supercritical liquids.

31. A method for integrating a microbial community with a biochar particle the method selected from the group consisting of: while under vacuum, pulling the microbial solution through a treated biochar bed that is resting on a membrane filter; spraying a microbial solution on top of a treated biochar bed; lyophilizing a microbial solution and then blending said freeze dried solution with the treated biochar; again infusing the treated biochar with a microbial solution; adding treated biochar to a growth medium, inoculating with the microbe, and incubating to allow the microbe to grow in said biochar containing medium; infusing, as defined previously, the biochar with a food source and then introducing the substrate infused biochar to a microbe and incubating to allow the microbes to grow; blending microbial strains in dry form with treated biochar; adding the treated biochar to a microbial solution and then centrifuging with a density gradient in order to promote the biochar to spin down with the microbes; densely packing a column with treated biochar and then using gravity to flow a microbial solution through the column and repeating this step until an acceptable combination of treated biochar and microbial solution is reached; and adding the microbe to a solution based binder to enter the treated biochar pores and then adding said solution to the treated biochar.

32. The method of claim 31 where biochar is sterilized before being infused with the microbial community.

33. The method of claim 31 where the microbial community includes mycorrhizal fungi.

34. A method for treating biochar having pores, the method comprising the step of removi

Assignees

• Cool Planet Energy Systems Inc

Inventors

• Bontchev Ranko Panayotov
• Kim Han Suk
• Jarand Mark L
• Belcher Richard Wilson
• Cheiky Michael C
• Sills Ronald A

Classifications

• C05G5/23

  Solutions · CPC title

• C05G5/20

  Liquid fertilisers (layered or coated C05G5/30; incorporated into a matrix C05G5/40) · CPC title

• C05D9/00 Primary

  Other inorganic fertilisers · CPC title

• C05G5/40

  Fertilisers incorporated into a matrix · CPC title

• C05G3/80

  Soil conditioners · CPC title