Waste management system
11325280 ยท 2022-05-10
Inventors
Cpc classification
B29B17/02
PERFORMING OPERATIONS; TRANSPORTING
B02C23/08
PERFORMING OPERATIONS; TRANSPORTING
B03C1/025
PERFORMING OPERATIONS; TRANSPORTING
B03C1/288
PERFORMING OPERATIONS; TRANSPORTING
B02C18/142
PERFORMING OPERATIONS; TRANSPORTING
B29B2017/0094
PERFORMING OPERATIONS; TRANSPORTING
B03C2201/20
PERFORMING OPERATIONS; TRANSPORTING
B29B2017/0416
PERFORMING OPERATIONS; TRANSPORTING
B02C23/18
PERFORMING OPERATIONS; TRANSPORTING
B03C1/035
PERFORMING OPERATIONS; TRANSPORTING
B29B2017/0217
PERFORMING OPERATIONS; TRANSPORTING
Y02W30/62
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B02C19/18
PERFORMING OPERATIONS; TRANSPORTING
C02F2103/007
CHEMISTRY; METALLURGY
C02F9/00
CHEMISTRY; METALLURGY
C02F11/15
CHEMISTRY; METALLURGY
B02C23/20
PERFORMING OPERATIONS; TRANSPORTING
Y02W30/52
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
C10J2300/0906
CHEMISTRY; METALLURGY
B63B35/32
PERFORMING OPERATIONS; TRANSPORTING
B09B5/00
PERFORMING OPERATIONS; TRANSPORTING
B02C18/143
PERFORMING OPERATIONS; TRANSPORTING
B09B3/40
PERFORMING OPERATIONS; TRANSPORTING
B03C1/30
PERFORMING OPERATIONS; TRANSPORTING
E02B15/046
FIXED CONSTRUCTIONS
E02B15/10
FIXED CONSTRUCTIONS
International classification
B29B17/04
PERFORMING OPERATIONS; TRANSPORTING
B03C1/30
PERFORMING OPERATIONS; TRANSPORTING
B02C23/18
PERFORMING OPERATIONS; TRANSPORTING
B02C19/18
PERFORMING OPERATIONS; TRANSPORTING
B02C21/02
PERFORMING OPERATIONS; TRANSPORTING
B29B17/02
PERFORMING OPERATIONS; TRANSPORTING
E02B15/10
FIXED CONSTRUCTIONS
B02C23/08
PERFORMING OPERATIONS; TRANSPORTING
B02C23/20
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A waste management system, primarily intended to be for waste floating in water, though it can also be used on land. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is cryogenically frozen using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon and water may be recycled. The carbon may be used as fuel by the ship. Water may also be used by the ship or returned to the ocean in a non-toxic condition.
Claims
1. An apparatus for waste management, comprising: a boat having a bow that is able to expand to collect waste material from the surface and subsurface of a body of water, a waste material dryer; a freezer that is able to cool the waste material to a temperature at or below minus fifty degrees Celsius in one or more refrigeration chambers; a pulverizer, that is able to maximize the ratio of the surface area to volume, and the ratio of surface area to mass, of particles of the waste material; a pump at the top of one or more separation chambers that can separate plastic from heavier waste material at the bottom of the chamber by creating a vertical vacuum that pulls the plastic to the top of the one or more separation chambers, where it is able to be removed; a reactor, in which the waste material is able to react with carbon oxide gas at a temperature at or above two hundred degrees Celsius.
2. The apparatus for waste management according to claim 1, wherein: the vessel has one or more nets that are able to be sunk into the body of water, and are able to be raised slowly to allow fish to escape through gaps along edges of the net, while capturing floating plastic.
3. The apparatus for waste management according to claim 1, wherein: the pulverizer has interacting screws that are able to pulverize the waste material.
4. The apparatus for waste management according to claim 2, further comprising: floatation devices for keeping edges of the nets at the surface of the body of water, with gaps between the floatation devices through which fish are able to swim.
5. The apparatus for waste management according to claim 1, wherein: the pulverizer has knife-edged screens with multiple horizontal knife-edges and multiple vertical knife-edges at right angles that are able to pulverize the waste material.
6. The apparatus for waste management according to claim 1, wherein: the pulverizer is able to generate sound waves that pulverize the waste material.
7. The apparatus for waste management according to claim 1, further comprising: one or more magnets that are able to separate metal from the waste material.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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(30) Similar reference characters denote corresponding features consistently throughout the attached drawings.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
(31) The present invention is a waste management system.
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(33) collecting waste material 10;
(34) shredding the waste material 12;
(35) drying the waste material 14;
(36) cryogenically freezing the waste material 16;
(37) pulverizing the waste material, to maximize the ratio of the surface area to volume of particles of the waste material 18;
(38) recovering useful material from the waste material 20;
(39) recycling the recovered useful material 22; and
(40) storing the recovered useful material 24.
(41) The waste material should be frozen to a temperature below zero degrees Celsius, preferably at or below minus fifty degrees Celsius. Cryogenic means very cold. Liquid nitrogen, a solution of dry ice and ethanol, or other suitable means of cryogenic freezing may be used. Material that is cryogenically frozen tends to crystallize and become brittle, and therefore easier to pulverize into small particles. The ratio of the surface area to volume (and mass) increases as particles become small, due to the square-cube law, which states: When an object undergoes a proportional increase (or decrease) in size, it new surface area is proportional to the square of the multiplier, and its new volume is proportional to the cube of the multiplier. (In the case of a decrease, the multiplier will be a fraction.) As smaller particles have a relatively larger surface area on which chemical reactions can take place, they may be more easily converted by chemical reactions into a useful form.
(42) A gas is used in the recovery of the useful material that reacts with the waste material. The gas is preferably a carbon oxide gas, such as carbon monoxide or carbon dioxide. A catalyst such as ceric sulphate may be used, in the presence of steam, at a pressure of one atmosphere for a time greater than ten minutes. The waste material may include plastic or any carbon containing material. The waste material may be collected from land or from water. It may be collected from the surface or the subsurface of a body of water, such as an ocean, sea, lake or river.
(43) The waste material may be collected using a ship, boat or other vessel. The vessel may have a bow that can open up to a greater width than the vessel's beam.
(44) The waste material may be collected using pumps 30 in
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(52) Where metal may be present in the waste material, it should be removed before the waste material is shredded or further processed. First, the waste material is passed under a series of magnets, preferably electromagnets. The magnets gather and release magnetic material (metal that can be magnetically attracted) into a size reducer. The size reducer includes grinders and/or shredders. The magnetic material is reduced in size, preferably to an average diameter of one centimeter or less. It is then stored and recycled.
(53) Particles of the waste material are shredded to a size of no more than one meter at their longest dimension. Pulverization then reduces the average diameter of particles of the waste material to one centimeter or less, preferably one millimeter or less, most preferably one-tenth of a millimeter or less. After it is pulverized, the waste material is placed in a chamber at a temperature greater than one degree Celsius, preferably between 100 and 1600 degrees Celsius. The pressure in the chamber is between 0.25 and 500 times the average pressure of air at sea level. The humidity in the chamber is kept greater than one percent but less than one hundred percent. Radiation and/or catalysts are used in the chamber to enhance the process of discovery. Carbon and water are collected from the chamber and recycled. The carbon may be used as fuel by the vessel or elsewhere. The water is purified, and may be used for drinking, washing, irrigating crops, industrial processes, etc. Where toxic substances are present in the waste material, after it has been processed the first time, it is processed again one or more times, to remove the toxic substances. Chemicals that neutralize or remove the toxic substances may be added to the waste material. After the waste material in a chamber has been completely processed, the chamber is purged (by washing, vacuuming, sweeping, air pressure, agitation, or other suitable means) of all remnants of the waste material, before more waste material is placed in the chamber.
(54) Besides a method for waste management, the invention also includes apparatus for carrying out the method, including:
(55) one or more chambers, within which waste material is:
(56) frozen to a temperature at or below minus fifty degrees Celsius;
(57) pulverized to maximize the ratio of the surface area to volume (and mass) of particles of the waste material; and
(58) processed to recover useful material.
(59) The waste material is frozen using freezers, which may be inside or outside of the chambers. The waste material is pulverized using pulverizers, which may be inside or outside of the chambers. The waste material is processed using processors, which may be inside or outside of the chambers. The freezing, pulverization, and processing of the waste material may take place in separate chambers or other spaces.
(60) There can be a plurality of the chambers, that are rotated to enable continuous processing of the waste material. As shown in
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(63) Robotically controlled collection systems may control ships, boats, barges, submarines, jet skis, trains, trucks, cars, etc.
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(66) One or more of the nets may be used to collect waste material from the surface of a body of water. The net is sunk to a depth of no more than four meters, and is raised slowly to allow fish to escape, while capturing floating plastic. The net may be closed as it is being raised from the water. It should be slowly closed and slowly raised. Small particles of plastic are most abundant in four meters from the ocean's surface (or three meters from the surface of inland bodies of water). Bodies of water include oceans, seas, lakes, rivers, streams, swamps, etc., or even artificial bodies of water such as in pools, tanks, vats, etc.
(67) There may be a plurality of the nets, having varying mesh sizes, arranged vertically in order of mesh size, with the net having the largest mesh size at the top, and the net having the smallest net size at the bottom. The largest mesh size may be five centimeters and the smallest net size may be twenty micrometers. Nets having larger mesh sizes are closed faster than nets having smaller net sizes. The edges of the nets have an angle of inclination from the top to the bottom of the nets of not more than twenty-five degrees before they are closed, whereby allowing fish and other marine life to exit from the nets through the larger mesh at the top, while retaining plastic in the smaller mesh at the bottom. There may be a plurality of sets of vertically arranged nets spaced horizontally.
(68) After the waste material is pulverized, but before it is reacted with carbon oxide gas, it may be mixed with liquid to form a slurry. The liquid may be water or one or more chemicals. The slurry may be mixed using mechanical mixing, screw turning, vibration, centrifuging, or sound waves. Carbonates may be added to the slurry to produce carbon dioxide. Formates may be added to the slurry to produce carbon monoxide. Ceric sulfate and gas reactor as a catalyst may be added to the slurry.
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(76) It is to be understood that the present invention is not limited to the embodiment described above, but encompasses any and all embodiments within the scope of the following claims.