Bioreactor system and method

• US 10,328,363 B2
• Filed: 06/06/2017
• Issued: 06/25/2019
• Est. Priority Date: 06/09/2016
• Status: Active Grant

• Current Assignee: Xianggen Wu
• Original Assignee: Xianggen Wu
• Inventors: Wu, Xianggen
• Primary Examiner(s): Prakash, Gautam
• Application Number:
  US15/615,820
• Publication Number:
  US 20170354906A1
• Time in Patent Office: 749 Days
• CPC Class Codes: B01D 21/245 Discharge mechanisms for the sediments
• CPC Class Codes: B01D 63/00 Apparatus in general for separation processes using semi-permeable membranes
• CPC Class Codes: B01F 2025/913 Vortex flow, i.e. flow spiraling in a tangential direction and moving in an axial direction
• CPC Class Codes: B01F 2215/0431 Numerical size values, e.g. diameter of a hole or conduit, area, volume, length, width, or ratios thereof
• CPC Class Codes: B01F 2215/0481 Numerical speed values
• CPC Class Codes: B01F 23/2132 using nozzles
• CPC Class Codes: B01F 23/23113 characterised by the disposition of the bubbling elements in particular configurations, patterns or arrays
• CPC Class Codes: B01F 23/23121 having injection means, e.g. nozzles with circumferential outlet
• CPC Class Codes: B01F 23/231266 being in the form of rings or annular elements
• CPC Class Codes: B01F 27/0726 having stirring elements connected to the stirrer shaft each by a single radial rod, other than open frameworks
• CPC Class Codes: B01F 27/117 Stirrers provided with conical-shaped elements, e.g. funnel-shaped
• CPC Class Codes: B01F 27/192 with dissimilar elements
• CPC Class Codes: B01F 27/87 the receptacle being divided into superimposed compartments
• CPC Class Codes: B01F 27/9212 with conical helices
• CPC Class Codes: C02F 1/00 Treatment of water, waste water, or sewage C02F3/00 - C02F9/00 take precedence
• CPC Class Codes: C02F 2209/02 Temperature
• CPC Class Codes: C02F 3/1268 Membrane bioreactor systems
• CPC Class Codes: C05F 17/05 Treatments involving invertebrates, e.g. worms, flies or maggots
• CPC Class Codes: C05F 17/40 Treatment of liquids or slurries
• CPC Class Codes: C05F 17/60 Heating or cooling during the treatment
• CPC Class Codes: C05F 17/921 : Devices in which the material is conveyed essentially horizontally between inlet and discharge means
• CPC Class Codes: C05F 17/964 : Constructional parts, e.g. floors, covers or doors
• CPC Class Codes: C05F 17/979 : the other material being gaseous
• CPC Class Codes: C05F 17/993 : Arrangements for measuring process parameters, e.g. temperature, pressure or humidity
• CPC Class Codes: C12M 21/04 : for producing gas, e.g. biogas digesters for manure with production of biogas A01C3/028, biological treatment of water, waste water or sewage C02F3/00, C02F11/02, preparation of natural gas or syngas C10L3/06, C10L3/10
• CPC Class Codes: C12M 23/02 : Form or structure of the vessel large containers B65D88/00
• CPC Class Codes: C12M 23/34 : Internal compartments or partitions
• CPC Class Codes: C12M 27/02 : Stirrer or mobile mixing elements
• CPC Class Codes: C12M 27/08 : with different stirrer shapes in one shaft or axis
• CPC Class Codes: C12M 29/06 : Nozzles; Sprayers; Spargers; Diffusers per se B01F23/231, B01J19/26
• CPC Class Codes: C12M 37/02 : Filters
• CPC Class Codes: E21B 43/16 : Enhanced recovery methods for obtaining hydrocarbons
• CPC Class Codes: Y02P 20/145 : the feedstock being materials of biological origin
• CPC Class Codes: Y02W 10/37 : using solar energy
• CPC Class Codes: Y02W 30/40 : Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Abstract

The present invention is a composting bioreactor system that continually receives biodegradable solid wastes, waste waters and exhaust gases, automatically recycles the biodegradable wastes into nutrients and heat energy, and automatically supplies the nutrients and heat into an integrated hydroponic or aquaponic system. This invention together with integrated food growing system may be installed onsite such as balconies, backyards and premises of restaurants and food factories etc. therefore may lead to zero mileage targets both for recycling wastes and for supplying foods. This invention integrates composting process and aquaponic technology together and may establish a closed-loop recirculation of both water and gases therefore upgrades aquaponics into compoponics. A compoponic system has both soil and soilless growing beds and mimics nature recirculating nutrients, carbon and energy among human being, animals, microorganisms and plants by way of photosynthesis, slow burning by cellular respiration and burning by combustion.

Claims

1. A bioreactor system for recycling biodegradable wastes, comprising:

a. a bioreactor body vessel having a vessel volume, said volume is divided into an upper chamber to receive said biodegradable wastes, a middle chamber to receive a filtered biodegradable waste generated in the upper chamber, and a lower chamber to receive a liquid waste generated in the middle chamber;

b. a perforated plate separator to separate said upper chamber from said middle chamber and a concaved or a conical separator to separate said middle chamber from said lower chamber;

c. a mixing agitation module having a chisel plow agitator installed in the upper chamber and an oblique cone agitator installed in the middle chamber to provide a harmonized mixing;

d. an aeration module installed in the middle chamber, said aeration module comprises of a plurality of perforated pipes fixed on an upper surface of said concaved or conical lower separator;

e. a heating module installed in the lower chamber to heat said liquid waste and kill pathogen microbes and weed seeds of said liquid waste;

f. an extension having an upper volume having an inlet port to receive said liquid waste from said lower chamber, a middle volume filled with a bio-filter media, and a lower volume having a second aeration module;

g. a plurality of inlet and outlet ports;

h. a plurality of temperature sensors installed inside both said body vessel and said extension and connected to a central control unit, said temperature sensors generating temperature-data; and

i. said central control unit to control said modules for heating, aeration and agitation in said system,

whereby said system degrades said biodegradable wastes into a usable liquid in continuous manner.

2. The bioreactor system of claim 1, wherein said body vessel further having a top lid and a feed module on said top lid to feed said biodegradable wastes into said upper chamber.

3. The bioreactor system of claim 1, wherein said system further having at least one waste water liquid inlet port feeding into said upper chamber.

4. The bioreactor system of claim 1, wherein said lower chamber comprising a heating-sub-chamber, wherein said heating-sub-chamber having a heating module to heat the content of said heating-sub-chamber to kill pathogen microbes and weed seeds of a waste water flowing through said heating-sub-chamber to generate a heated waste water, and a collection chamber to collect said heated waste water from the heating-sub-chamber and to moderate the temperature of the heated waste water.

5. The bioreactor system of claim 4, wherein a temperature inside said heating-sub-chamber is between 70-100°

C.

6. The bioreactor system of claim 1, wherein said oblique cone agitator in said middle chamber is made by installing a plurality of oblique cones on a circle frame or circle frames together composing horizontal and/or vertical layers of which lower layer is smaller than upper layer to fit for the concaved or conical shape of said lower separator.

7. The bioreactor system of claim 1, further having a stove unit which has a heat radiator, wherein said radiator is positioned underneath the bottom of the body vessel and also works as support base of the body vessel, wherein said stove unit is a wood stove that has a heat radiator made of clay and fire brick, and its side walls has an insulation outer layer to hold heat in high temperature for a long time to heat the body vessel.

8. The bioreactor system of claim 1, further having a stove unit to heat said body vessel and said extension by a combustion process and wherein said stove unit has a chimney vent that introduces combustion exhaust gases into an exhaust gas inlet port of the body vessel, wherein said extension further having an air inlet port to accept said combustion exhaust gases from an air outlet port of the body vessel;

and whereas an inline duct fan is installed along with an air pipe between said air inlet port of the extension and said air outlet port of the body vessel, whereby said inline duct fan drives said combustion exhaust gases into the extension from the body vessel and in the same time creates a negative pressure inside the body vessel to draw said combustion exhaust gases flowing into the body vessel from said chimney vent.

9. The bioreactor system of claim 8, wherein said extension further having a plurality of wick posts on a top wall of the extension and a wicking bed filled with a limestone gravel or a crushed lava stone of 8-12 inches of thickness, whereby said limestone gravel or crushed lava stone filters and degrades said exhaust gases flowing through said wicking bed, and wherein said wick posts supply water and nutrients to plants cultured in the wicking bed.

10. The bioreactor system of claim 1, further having a plurality of sensors for humidity, oxygen, ammonia, carbon dioxide and air pressure installed inside said body vessel and connected to said central control unit, wherein said sensors generating sensor-data, and wherein said central control unit reads and displays said sensor-data and controls the mixing agitation module, the aeration module and the heating module to turn on/off according to a pre-set condition.

11. The bioreactor system of claim 1, wherein the extension further having a wicking bed filled with a soil or a compost or other media of 8-12 inches of thickness with Eisenia fetida and plants to be cultured in the wicking bed.

12. The bioreactor system of claim 1, wherein said perforated plate separator has a plurality of perforations, wherein each said perforation has a diameter in the range of ½

-¼

inch.

13. The bioreactor system of claim 1, wherein said upper chamber having Eisenia fetida and Hermetia illucens cultured to speed up decomposition of said biodegradable wastes, and wherein said body vessel further having an output port connecting to a collection container to automatically harvest larvae of said Hermetia illucens escaped from said upper chamber, whereby larvae harvested is used to feed aquaculture animals of an integrated aquaponic system.

14. The bioreactor system of claim 1, wherein said bio-filter media in the extension is a lightweight expanded clay aggregate (LECA).

15. A bioreactor system for recycling biodegradable wastes, comprising:

a. a bioreactor body vessel having a vessel volume, said volume is divided into an upper chamber to receive said biodegradable wastes, a middle chamber to receive a filtered biodegradable waste generated in the upper chamber, and a lower chamber to receive a liquid waste generated in the middle chamber;

b. a perforated plate separator to separate said upper chamber from said middle chamber and a concaved or a conical separator to separate said middle chamber from said lower chamber;

c. an aeration module installed for the middle chamber, said aeration module comprises of a plurality of airlift pumps to generate a swirling vortex in the middle chamber;

d. a mixing agitation module having a chisel plow agitator installed in the upper chamber to provide a harmonized mixing, and a vortex flower turbine installed in the middle chamber and driven by said swirling vortex in the middle chamber to provide necessary torque for driving said chisel plow agitator;

e. a heating module installed in the lower chamber to heat said liquid waste and kill pathogen microbes and weed seeds of said liquid waste;

f. an extension having an upper volume having an inlet port to receive said liquid waste from said lower chamber, a middle volume filled with a bio-filter media, and a lower volume having a second aeration module;

g. a plurality of inlet and outlet ports;

h. a plurality of temperature sensors installed both inside said body vessel and inside said extension and connected into a central control unit, said temperature sensors generating temperature-data; and

i. said central control unit to control said modules for heating, aeration and agitation in said system,

whereby said system degrades said biodegradable wastes into a usable liquid in continuous manner.

16. The bioreactor system of claim 15, further having a vortex flower turbine installed in the middle chamber and connected into a shaft rod of said mixing agitation module, whereby said swirling vortex causes rotation of the vortex flower turbine in the middle chamber which drives to rotate the chisel plow agitator in the upper chamber, wherein said vortex flower turbine is made by fixing and folding a plurality of flower leaf blades on and around a shaft rod so that both the edges of the flower leaf blades and the channels between the flower leaf blades are in a vortex featured shape.

17. The bioreactor system of claim 16, wherein said mixing agitation module further having a coaxial gear reducer installed on said top lid of the body vessel, wherein said coaxial gear reducer is fixed and supported by a tube frame of which its lower end is fixed on said upper separator and its upper end is fixed on a lower end of said coaxial gear reducer, and two alongside coaxial shaft rods inside the body vessel of which an inner shaft rod inside said tube frame connects with both the vortex flower turbine and an input draft of the coaxial gear reducer and an outer shaft rod held by a bearing fixed on the top lid connects with both the chisel plow agitator and an output shaft of the coaxial gear reducer by way of another tube frame outside the coaxial gear reducer, whereby said coaxial gear reducer driven by the vortex flower turbine provides a reduced speed and an increased torque for driving the chisel plow agitator.

18. A bioreactor system both for recycling biodegradable wastes and for growing foods, comprising:

a. a bioreactor system of claim 8, or a bioreactor system of claim 16;

b. a plurality of aquaculture tanks having aquaculture animals cultured;

c. a plurality of soil wicking growing beds having plants cultured;

d. a plurality of soilless hydroponic growing beds including media growing beds, water floating growing beds and vertical growing beds having plants cultured;

e. at least one activated carbon growing bed having plants cultured and filtering water for culturing aquaculture animals and for flushing toilets; and

f. at least one wetland growing bed staying in the lowest spot of a bioreactor system lot and having plants cultured, whereby said wetland growing bed receives and degrades an ash generated from combustion of said stove unit and a sludge generated from a circulating water of said bioreactor system, and wherein said wetland growing bed has a substrate layer of limestone gravel or crushed lava stone for settling sludge, a filter chamber filled with limestone gravel or crushed lava stone for filtering suspension particles, and a water pump chamber having a water pump to transport a filtered water from said filter chamber into said hydroponic growing beds,

whereby said bioreactor system integrates a composting process and an aquaponic technology together by a closed-loop water recirculation, and mimics nature recirculating nutrients, carbon and energy among human being, animals, microorganisms and plants by way of photosynthesis, slow burning by cellular respiration and burning by combustion.

19. The bioreactor system of claim 18, further having a greenhouse to shelter said soil wicking growing beds and said soilless hydroponic growing beds and at least one CO2 sensor installed inside said greenhouse and connected into the central control unit, whereby inside said greenhouse CO2 ppm may be elevated by combustion of the stove unit either to stimulate growth of plants or to kill pests;

and wherein said greenhouse has a vent to introduce an air from said greenhouse into a combustion chamber of the stove unit, whereby said bioreactor system may establish a closed-loop recirculation of O2 and CO2 by way of photosynthesis of plants inside the greenhouse, slow burning by cellular respiration during decomposition of the biodegradable wastes and burning by combustion of the stove unit.

20. The bioreactor of claim 18, whereby a plant growing inside said wetland growing bed is Nelumbo nucifera.