In-situ system for aerobic heat treatment of biodegradable organic waste
View Patent ↗The proposed invention is an in-situ system for aerobic heat treatment of biodegradable organic waste, comprising a bioreactor made up of a dish-shaped decomposition chamber. The decomposition chamber has a lid at the top through which an air extraction device is connected. The air extraction device enables fresh air to enter the decomposition chamber and a preparation for a device supplies the biodegradable organic waste. The decomposition chamber is also connected to a system of pipes which convey a hot fluid from the supply tank into a plurality of minitubes located longitudinally on the inner perimeter of the decomposition chamber, and into a shaft that forms part of the mixing mechanism. A centrifugal pump conveys the same fluid, which is now “cold”, from inside the minitubes and shaft to a solar collector, to heat it, before delivering it to a storage tank for subsequent recirculation.
1. An in-situ system for aerobic processing of biodegradable organic waste comprising:
a. a bioreactor connected to an input device, a heating device and a transmission powered by a motor mechanism, wherein said bioreactor comprises a decomposition chamber formed by a parabolic shaped plate and a pair of parallel plates joined to side ends of the parabolic shaped plate, thereby closing off the decomposition chamber around its sides;
b. a first lid connected to an upper part of said decomposition chamber;
c. an air extraction device, wherein the air extraction device is connected to a first hole and a second hole in the first lid and the input device is connected to a third hole located in a center of the first lid;
d. the extraction device located within the decomposition chamber;
e. a mixing mechanism consisting of a hollow shaft, wherein said hollow shaft is placed lengthwise in the decomposition chamber and is supported by a lateral wall of the decomposition chamber, the hollow shaft being connected at one end to the transmission;
f. a heat transfer mechanism located inside the decomposition chamber, wherein said heat transfer mechanism comprises the hollow shaft of the mixing mechanism; and
g. a plurality of mini-tubes having lengths which are smaller than the decomposition chamber, wherein said mini-tubes are placed lengthwise and in direct contact with each other thereby adopting to a form of the decomposition chamber, further wherein said mini-tubes are embedded in a layer of insulating material attached to an inside surface of the parabolic shaped plate, such that 50% of an exterior surface of the mini-tubes is exposed to direct contact with contents of the decomposition chamber and the other 50% is embedded in the layer of the insulating material, the mini-tubes are soldered at about a 90 degree angle at one end to a curved hot fluid guide tube and at the other end to a curved cold fluid collector tube, the curved hot fluid guide tube and the curved cold fluid collector tube are embedded in the decomposition chamber and are threaded to connect to a hot fluid guide tube and a cold fluid collector tube respectively.
2. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the side ends of the parabolic shaped plate protrude from the bottom of the parabolic shaped plate by at least 5 cm.
3. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the first and second holes in the first lid have a same diameter.
4. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the first and second holes in the first lid have diameters of about 10 cm.
5. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the third hole has a diameter of about 20 cm.
6. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the third hole has a diameter greater than 10 cm and less than 20 cm.
7. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the decomposition chamber is made of fiberglass.
8. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the decomposition chamber is made of a polymer, which is resistant to high temperatures.
9. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the decomposition chamber is made of galvanized iron.
10. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the decomposition chamber is lined with epoxy or a polymer resistant to high temperatures, salt concentrations, and an elevated pH.
11. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the first lid is connected to the decomposition chamber with screws.
12. The in-situ system for aerobic processing of biodegradable organic waste of claim 1 , wherein the first lid is connected to the decomposition chamber with hinges.