Patent Publication Number: US-9423178-B2

Title: Device for conversion of waste to sources of energy or fertilizer and a method thereof

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to a system for conversion of waste to sources of energy or fertilizer and, more particularly, to a compact device and process for conversion of waste to sources of energy and fertilizer. 
     2. Description of Related Art 
     Conventional processing schemes for conversion of waste products are well known and have been in use for a number of years. Regrettably, most suffer from obvious disadvantages in that they are very costly, inefficient, complex and fairly large systems that require a dedicated large facility for operation. Further, most are for recovery of salvageable components (e.g., sorting glass, metal, etc. from a salvageable component such as car) rather than recycling of waste to different sources of energy. Others are for recovery or conversion of specific types of waste such as wood products only. 
     Accordingly, in light of the current state of the art and the drawbacks to current waste conversion systems mentioned above, a need exists for a low cost, on-site, efficient, and compact (stationary or mobile) system for continuous (non-batch operation) conversion of waste to different sources of energy or fertilizer. 
     BRIEF SUMMARY OF THE INVENTION 
     One non-limiting, exemplary aspect of the present invention provides a compact device (that may be installed onto a mobile or stationary platform) for conversion of waste to sources of energy or fertilizer. The device includes multiple stages for efficient conversation and processing of waste into energy or fertilizer, including a first stage for reducing a size of received waste, a second stage for compressing the reduced sized waste into partially dehydrated waste, a third stage for grinding and further compression of received waste from second stage to pulverize the constituent parts into highly dense substantially dehydrated pellets or fertilizer, with a fourth stage for further drying of the received pellets or fertilizer and a final fifth stage for cooling the received pellets or fertilizers into highly dense materials. The device of the present invention further includes a controller for controlling each operational stage. 
     Such stated advantages of the invention are only examples and should not be construed as limiting the present invention. These and other features, aspects, and advantages of the invention will be apparent to those skilled in the art from the following detailed description of preferred non-limiting exemplary embodiments, taken together with the drawings and the claims that follow. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       It is to be understood that the drawings are to be used for the purposes of exemplary illustration only and not as a definition of the limits of the invention. Throughout the disclosure, the word “exemplary” is used exclusively to mean “serving as an example, instance, or illustration.” Any embodiment described as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments. 
       Referring to the drawings in which like reference character(s) present corresponding part(s) throughout: 
         FIG. 1A  is a non-limiting, exemplary illustration of a device for conversion of waste to sources of energy in accordance with the present invention installed onto a non-limiting, exemplary mobile platform, and  FIG. 1B  is a non-limiting exemplary top view illustration of a first stage hopper, showing a portion of a shredder in accordance with the present invention; 
         FIG. 2  is non-limiting, exemplary schematic of a general system overview of the device of  FIGS. 1A and 1B  in accordance with the present invention; 
         FIG. 3  is a non-limiting, exemplary flowchart that provides a general overview of the overall systems level operation of the device of  FIGS. 1A to 2  in accordance with the present invention; 
         FIG. 4A to 4G  are non-limiting, exemplary illustrations of a first module of a first stage of the device illustrated in  FIGS. 1A to 3  in accordance with the present invention; 
         FIGS. 5A to 5C  are non-limiting, exemplary illustrations of a second mechanism of a second module of a second stage of the device of  FIGS. 1A to 4G  in accordance with the present invention; 
         FIGS. 6A to 6E  are non-limiting, exemplary illustrations of a third mechanism of a third module of a third stage of the device of  FIGS. 1A to 5C  in accordance with the present invention; and 
         FIGS. 7A to 7D  are non-limiting, exemplary illustrations of a fourth and fifth mechanisms of a fourth and fifth modules of fourth and fifth stages of the device of  FIGS. 1A to 6E  in accordance with the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The detailed description set forth below in connection with the appended drawings is intended as a description of presently preferred embodiments of the invention and is not intended to represent the only forms in which the present invention may be constructed and or utilized. 
     The present invention provides waste conversion system that may be installed on-site, is efficient, and compact (may be stationary or mobile) system for continuous (non-batch operational) conversion of waste to different sources of energy or fertilizer. The present invention is efficient in that the device consumes or requires much less power to generate fertilizer or pellets. The processing of the waste is also accomplished efficiently in that the time to convert waste to pellets or fertilizer is much shorter (about 15 minutes) due to the fact that the process of conversion is continuous. In other words, unlike the conventional systems, with the present invention, there is no need to convert a first batch of waste prior to commencing conversion on a second batch, but the entire waste conversion may be done continuously. With conventional systems, once a conversion process commences, users must have to wait for a long period of time until the process is completed, and then start a new batch. Further, with the present invention, the entire system is so compact that it may be installed on-site or on mobile platforms. The mobile systems may be placed on utility waste collection vehicle wherein as the waste is collected, the waste is continuously processed by the present invention, continuously generating pellets or shredded pulverized product (e.g., fertilizer). 
       FIG. 1A  is a non-limiting, exemplary illustration of a device for conversion of waste to sources of energy or fertilizer in accordance with the present invention installed onto a non-limiting, exemplary mobile platform, and  FIG. 1B  is a non-limiting exemplary top view illustration of a first stage hopper, showing a portion of a shredder in accordance with the present invention. As illustrated in  FIGS. 1A and 1B , the present invention provides a waste to energy (or fertilizer) conversion device  100  that may be used with a mobile platform  102  or a platform that is stationary (installed within a restaurant or other establishments) to convert waste into various forms of usable energy (or fertilizer). Non-limiting example of a mobile platform  102  may be conventional utility waste collection vehicle such as garbage ship, boat, truck, or other mobile vehicles that includes the device  100  secured thereon as illustrated. In the non-limiting example of a garbage truck, the device  100  may be installed onto a truck bed, enabling trash or other waste to be dropped through a receiving member  104  (in the form of a hopper) of device  100  for further processing. The finally processed waste is then moved from the device  100  via a conveyer system  106 , and is dumped into a conventional collection bin of the vehicle. 
       FIG. 2  is non-limiting, exemplary schematic of a general system overview illustration of device  100  of  FIGS. 1A and 1B  in accordance with the present invention. As illustrated, device  100  is comprised of a receiving member  104  in the form of a feed mechanism such as a hopper for receiving waste. The hopper  104  has an ingress cross-sectional opening for receiving the waste, and an egress cross-sectional opening that enables a part of a first mechanism of a first stage (detailed below) to extend out from the egress cross-sectional opening of the hopper  104  (shown in  FIG. 1B ). The ingress cross-sectional opening of the hopper  104  is wider than the egress cross-sectional opening thereof. The waste is simply dumped into the device  100  via the non-limiting exemplary hopper  104  for further processing. The dumping of waste may be accomplished by a variety of means, non-limiting examples of which may include by individuals (for stationary devices located within restaurants for example) or alternatively, by a conventional mechanical arm  108  of the utility waste collection vehicle  102  that is adapted to lift trash bins. 
     As further illustrated in  FIG. 2 , the device  100  of the present invention is comprised of multiple stages that process incoming waste, including a first stage  202  that has a first module  204  for reducing a size of the received waste via the hopper  104  into smaller constituent parts. Further included is a second stage  206  that includes a second module  208  that comprises a second mechanism  210  for application of a compressive force for pressing and extraction of liquid from smaller constituent parts, generating partially dehydrated smaller constituent parts (that are about 40% dry), with the extracted liquid drawn out by a vacuum pump  216  via vacuum pump tubes  260 , filtered for removal of solids, and stored as a first source of energy (which may be used to create methane) within a storage module  214 . 
     As further illustrated in the systems overview in  FIG. 2 , the device  100  of the present invention is further comprised of a third stage  218  that includes a third module  220  that receives the partially dehydrated, compressed smaller constituent parts, and includes a third mechanism  222  for further compression, grinding, and application of heat (e.g., in the form of high speed heated air via a heat pump  226 ) to pulverize the constituent parts into highly dense substantially dehydrated pellets  224 . It should be noted that at this stage, heat is also generated due to the immense pressure from the compression of the dry waste particles. That is, the compression force of the dry waste particles also generates heat. In general, the temperature at this third stage  218  is above 150° F., which is sufficient to kill most bacteria. The third stage  218  is a slower process in that it requires sufficient time to allow the substantially dehydrated waste particles to dry. The highly dense substantially dehydrated pellets  224  exiting this stage are about 60% or more dry. 
     As further illustrated in  FIG. 2 , the device  100  also includes a fourth stage  228  that includes a fourth module  230  that receives the highly dense substantially dehydrated pellets, and includes a fourth mechanism  232  that further dry the pellets  224 . In general, the temperature within the fourth stage  228  is above 150° F., and it will take about 7 minutes for a single pellet  224  to move from a first distal end of the fourth stage  228  to the second distal end (exiting side) thereof. Temperature and speed of transportation may be varied and should not be limiting. 
     As illustrated in  FIG. 2 , the device  100  further includes a fifth stage  234  that includes a fifth module  236  that receives the substantially dried, heated pellets, and includes a fifth mechanism  238  for cooling the heated pellets  224 , which increase the pellet density. In general, it will take about 3 minutes for a single pellet to move from a first distal end to the second distal end (exiting side) of the fifth stage  234 , with the both the speed and temperature varied commensurate with various requirements. As further illustrated in  FIG. 2 , the device  100  also includes a controller  240  that is coupled with various stages via control lines  254  for controlling each operational stage. The device  100  includes the storage module  214  that has a container  242  within which is included a heating element  244  to substantially eliminate order and bacteria, and an agitator  246  that continuously mixes the liquid for even distribution of heat. As illustrated, the agitator  246  is comprised of a motor  248 , a shaft  250  coupled with the motor  248 , and a set of rotator blades (paddles or propellers)  252  coupled with the shaft  250  that rotate to mix the stored liquid. 
       FIG. 3  is a non-limiting, exemplary flowchart that provides a general overview of the overall systems level operation of the device  100  in accordance with the present invention. The device  100  is ready for operation (indicated as the operational functional act  300 ), and includes various well-known sensors (e.g., pressure, temperature, motion, etc.) and switches that enable the proper and efficient operation of the various stages at appropriate times. For example, the device  100  includes well-known sensors associated with the receiving member (e.g., the hopper  104 ) that may detect the presents of waste, and report a detected waste signal to the controller  240 . At the operational functional act  302 , if the controller  240  determines that waste is present in the hopper  104  (shown in  FIGS. 1A to 2 ), the controller  240  transmits an activation signal to the first stage  202 , activating the first module  204  at the operational functional act  304  for reducing the size of the received waste (via the hopper  104 ) into smaller constituent parts. The controller  240  also activates the pump  216  and storage module  214  upon activation of the first module  204  to vacuum residual waste liquid and store inside the storage module  214 . On the other hand, if at the operational functional act  302  the controller  240  determines (via detected signals from the hopper  104  sensors) that waste is not present in the hopper  104 , the controller  240  may simply deactivate the first stage  202  operations at the operational functional act  306 , and wait for detected waste signal from the hopper waste sensors. The pump  216 , the storage module  214 , and other stages may continue to be active, depending on the detected presence or absence of waste in other stages. For example, no waste may be detected in the hopper  104 , but the second and the remaining subsequent stages may have waste that is being processed, which enables non-batch, continuous processing of waste by device  100 . 
     As further illustrated in  FIG. 3 , at the operational functional act  308  the controller  240  determines if the second mechanism  210  of the second stage  206  is full to a predetermined capacity. If the controller  240  determines that the second mechanism  210  is full, the controller  240  deactivates the first stage  202 , and activates the second mechanism  210  for application of a compressive force for pressing and extraction of liquid from smaller constituent parts, generating partially dehydrated smaller constituent parts, with the extracted liquid drawn out by the active vacuum pump  214  via vacuum pump tubes  260 , and stored in the storage module  214 . On the other hand, if the controller  240  determines that the second mechanism  210  is not full to capacity, second mechanism  210  will remain deactivated, while the first stage mechanism  204  may or may not be active, depending on the sensed waste inside the hopper  104 . If the controller  240  determines at the operational functional act  308  that the second mechanism  210  is full to the predetermined capacity, the controller  240  deactivates the first mechanism  204  at operational functional act  310  and activates the remaining stages at operational functional act  312  for (and at) an appropriate time in accordance with a predetermined scheme for an efficient operation of the various stages. It should be noted that additional logic and timing schemes may be used for a more efficient operation of the device  100 . For example, each stage may have its own set of timers/sensors for a finer, more granulated coordination (or “hand-shake”) between stages. As an example, during the operation of the device  100 , the first and second stages  202  and  206  may be empty (have no waste to be processed) while other stages may have remaining waste that is being processed. For example, the utility waste collection vehicle  102  may be on the move from a recent collection of trash, where first and second stages  202  and  206  have already processed the waste, but the remaining stages are functioning to process the remaining waste into energy or fertilizer. Accordingly, additional set of timers/sensors may be included for a finer, more granulated coordination (or “hand-shake”) between stages for a more efficient operation of device  100 . 
       FIG. 4A to 4G  are non-limiting, exemplary illustrations of a first module of a first stage of the device illustrated in  FIGS. 1A to 3  in accordance with the present invention. As illustrated in  FIGS. 1A to 4G , after waste enters the receiving member  104 , it is processed by the first stage  202  that includes a first module  204  for reducing a size of the received waste into smaller constituent parts. The first module  204  of the first stage  202  includes a shredder mechanism  402  that masticates, chops, shreds, and grinds waste into smaller constituent parts. The shredder mechanism  402  is comprised of a shredder assembly  404 , a first motor M 1 , and a drain (best illustrated in  FIG. 2 ) for removal of liquid from shredder assembly  404 , with the drain coupled to a vacuum pump line  260 . The extracted liquid is drawn out via vacuum pump  216 , filtered for removal of solids, and stored as a first source of energy in the storage module  214  via a pump exit line  264 , which may later be used to create methane. 
     The shredder assembly  404  includes a shredder housing  406  that accommodates a dual or twin shaft shredder  408  with a dual shaft transmission/gear system  410 . The dual shaft shredder  408  is comprised of first and second shredder shaft assembly  412 A and  412 B that are associated with the shredder housing  406 . The first shredder shaft assembly  412 A includes a first shredder shaft  414 A that has a first polygonal cross-section  416 A with a first axial length  418 A that further includes a first drive-shaft end  422 A and a first bearing-shaft end  424 A. The first shredder shaft assembly  412 A also includes a first set of shredder plates  420 A that are substantially equally spaced, juxtaposed adjacent one another, mounted onto, and aligned along the first axial length  418 A of the first shredder shaft  414 A. The first drive-shaft end  422 A includes a first gear assembly  426 A coupled with a second gear assembly  426 B with one of the first or second gear assemblies  426 A and  426 B coupled with a drive shaft  262  of the first motor M 1 , wherein when the drive shaft  262  of the motor M 1  rotates a motor gear assembly coupled therewith, both the first and second shredder shaft assembly  412 A and  412 B rotate, with the first gear assembly  426 A rotating clockwise and the second gear assembly  426 B rotating counterclockwise so that an upper section of rotation of both the first and second gear assemble  426 A and  426 B are towards one another. 
     As further illustrated in  FIGS. 4A to 4G , the shredder assembly  404  further includes the second shredder shaft assembly  412 B that has a second shredder shaft  414 B that has a second polygonal cross-section  416 B with a second axial length  418 B that further includes a second drive-shaft end  422 B and a second bearing-shaft end  424 B. The second shredder shaft assembly  412 B further includes a second set of shredder plates  420 B that are substantially equally spaced, juxtaposed adjacent one another, mounted onto and aligned along the second axial length  418 B of the second shredder shaft  414 B. The second drive-shaft end  422 B includes the second gear assembly  426 B coupled with the first gear assembly  426 A, with one of the first or second gear assembly  426 A and  426 B coupled with a drive shaft  262  of the motor M 1 . 
     The first and second shredder shafts  414 A/B are positioned within the shredder housing  406  and juxtaposed adjacent one another longitudinally along their respective first and second axial lengths  418 A/B with the first and second drive-shaft end  424 A/B of the first and second shredder shafts  414 A/B associated with a first wall of the shredder housing  406 , and the first and second bearing-shaft end  422 A/B of the first and second shredder shaft  414 A/B associated with a second wall of the shredder housing  406 , with the first and second walls of the shredder housing  406  oriented transverse a longitudinal axis  418 A/B of the first and second shredder shafts  414 A/B. As illustrated, the first set of shredder plates  420 A encroach a second set of void spaces  432 B of the second shredder shaft assembly  412 B, and the second set of shredder plates  420 B encroach a first set of void spaces  432 A of the first shredder shaft assembly  412 A. 
     As best illustrated in  FIGS. 4D to 4G , the shredder plates  420 A/B have a pivot axis that is normal to a radial plane of the shredder plates  420 A/B. The shredder plates  420 A/B further have a substantially disc structure with a thickness  430  ( FIG. 4C ) along the pivot axis, a diameter  434  that defines a span of the lateral face, which is the radial plane of the shredder plates  420 A/B, a circumference that defines the radial outer periphery (or radial distal end)  436 , and a radial center  438 . 
     Further included with the shredder plates  420 A/B are severing members  440  that protrude from a radial outer periphery  436  of the shredder plates  420 A/B, and a mounting through-hole  438  oriented transverse the radial plane for insertion of the shredder shaft  414 A/B and mounting of the shredder plate  420 A/B thereon, with the mounting through-hole  438  having a perimeter and a cross-sectional span that is configured commensurate with the cross-section of the shredder shaft  414 A/B. It should be noted that although in this instance the mounting through-hole and the radial centre of the shredder plate coincide and are the same, the mounting through-hole  438  may be off-centered, forming an eccentrically configured shredder plate. 
     As further illustrated, the severing members  440  protrude from the radial outer periphery  436  of a shredder plate  420 A/B at a progressively, smooth increasing angle of about 15° to 30° degrees, forming a radial outward projecting shoulder  442  that ends at a tip  444 , forming a radial recessed inner portion  446 , with the radial outward projecting shoulder  442  and the radial recessed inner portion  446  constituting a cutting-wing of the severing member  440 . It should be noted that radial recessed inner portion facilitates in the grip of waste. The shredder plates  420 A/B further include indentations  456  (notches, dips, or dimples, etc.) along the radial outer periphery  436  that are positioned between the tips  444 , and define a start position (at a 15 to 30 degrees) from which the severing members  440  commence protruding, and an end position at which the radial outer periphery  436  from an end of the radial recessed inner portion  446  ends. In general, the severing members  440  use the indentations  456  to further agitate, mix, and facilitate griping of the waste products. It should be noted that the indentations  456  must not be so deep to “trap in” the waste, but must be of sufficient depth so to mix or agitate the waste. The tip  444  of the severing members  440  facilitates mounting and installation of sharp blades  450  by a set of fasteners, with the blades covering the tip  444  along the thickness  430  of the plate  420 A/B and is comprised of carbide and alloys thereof. The tip  444  of the cutting-wing  442  of a shredder plate  420 A/B on a shredder shaft  418 A/B is oriented in the same direction of the orientation of the tip  444  of the cutting-wing of a next adjacent shredder plate  420 A/B on the same shredder shaft  418 A/B. As illustrated in  FIGS. 4E to 4G , the sharp blades  450  covering the tip  444  of the severing members  440  may be coupled with the tips  444  in a number of ways, two non-limiting examples of which are illustrated in  FIGS. 4E and 4G . For example, as illustrated in  FIG. 4E , the blades  450  may comprise of straight lateral edges  452  that are accommodated within the notches  454  of the tip  444  or, as an alternative example, the blades  450  ( FIG. 4G ) may comprised of beveled lateral edges  458  that become flush with the tips  444 , without requirement of any notches  454  on the plates  420 A/B. 
       FIGS. 5A to 5C  are non-limiting, exemplary illustrations of a second mechanism of a second module of a second stage of the device of  FIGS. 1A to 4G  in accordance with the present invention. As illustrated, the second stage  206  includes the second module  208  that comprises the second mechanism  210  for application of a compressive force for pressing and extraction of liquid from smaller constituent parts, generating partially dehydrated smaller constituent parts (that are about 40% dry), with the extracted liquid drawn out by a vacuum pump  216  via vacuum pump lines  260 . The second mechanism  210  of the second module  208  includes a second chamber  502  that is a compression chamber that includes an outer module  504  and an inner module  506 . The outer module  504  includes an ingress hopper  508  connected near the first end  510  and an egress hopper  512  connected opposite the ingress hopper  508  near the second end  514 , and further includes coupling mechanisms for second and third motors and the vacuum lines  260 . The inner module  506  is comprised of drainage apertures  520  that enable accumulated liquid within the inner module  506  to drain out into the interior of the outer module  504  and be removed by the first and second vacuum lines  260 . The inner module  506  may be configured commensurate with outer module  504 . The inner module  506  drainage apertures  520  have a non-limiting, exemplary size of about 3 mm and are spread across the surface of the inner module  506 . 
     As further illustrated in  FIGS. 5A to 5C , the second mechanism  210  further includes the second motor M 2  at the first end  510  of the second chamber  502  and a third motor M 3  at a second end  514  of the second chamber  502 . The second motor M 2  is coupled with a piston shaft  524  of a piston  522  to move the piston  522  along a longitudinal axis  530  of the second chamber  502  to compress the smaller constituent parts into substantially dehydrated smaller constituent parts of about 40% dry, with the pressure at about 150 to 350 psi. The third motor M 3  is a bidirectional rotator motor that is coupled with a plate shaft of a plate  526 B for bidirectional rotation of the plate  526 B along a bidirectional reciprocating rotational path  528 . Within this second stage  206 , the second motor M 2  pushes the smaller constituent parts from the first end  510  to the second end  514  of the second chamber  502 , towards the pivoting plate  526 , while the pivoting plate  526 B rotates back-and-forth to further compress and squeeze out and extract further liquid from the smaller constituent parts. The compression piston  522  moves to about a distance of 6 cm away from the plate  526 . It should be noted that the back-and-forth rotation of the plate  526 B also pushes the remaining solid waste out of the chamber  502  and into the egress hopper  512  and to the next stage for further processing. The second vacuum line  260  positioned near the first end  510  of the second chamber  502  and a third vacuum line  260  positioned near the second end  514  of the second chamber  502  remove the extracted liquid. It should be noted that the piston  522  may be a compression piston and the compression chamber (the second chamber  502 ) may be a hydraulic compression chamber with the second motor M 2  being a hydraulic motor. As best illustrated in  FIG. 5C , the compression piston  522  with its plate  526 A and the plate  526 B are comprised of a disc with a first and second sides  542  and  544 , with the first side  542  facing and contacting the particles, which includes a surface with protrusions and indentations to grip and squeeze particles. The second side  544  is substantially flat and faces the connection points of the piston shaft and the third motor shaft. As with other stages, this stage also includes a plethora of timers and sensors for sensing motion, pressure, temperature, etc. for correct and efficient operation. 
       FIGS. 6A to 6E  are non-limiting, exemplary illustrations of a third mechanism of a third module of a third stage of the device of  FIGS. 1A to 5C  in accordance with the present invention. As illustrated in  FIGS. 6A to 6E  and indicated above, the third stage  218  includes a third module  220  that receives the partially dehydrated, compressed smaller constituent parts from the second stage  206 , and includes a third mechanism  222  for further compression, grinding, and application of heat (e.g., in the form of high speed heated air) to pulverize the constituent parts into highly dense substantially dehydrated pellets  224 . The third module includes a third chamber  602 , having an outer unit  604  and an inner unit  606 . 
     The outer unit  604  includes an ingress hopper  608  connected near a first end  610  and an egress hopper  612  connected opposite the ingress hopper  608  at near a second end  614 , and further includes coupling mechanisms for a fourth motor M 4  and a heat pump  226 . The pelletized waste  224  is dropped out of the egress hopper  612  and into the next stage. The inner unit  606  is comprised of heat vents  618  that enable heat to be pumped within the inner unit  606  (and confined within the outer unit  604 ) to further dehydrate the particles. The inner unit  606  may be configured commensurate with outer module  604 . The inner unit heat vents  618  have a size of about 1 mm and are spread across the surface of the inner unit  606 . The heat vents  618  do not get clogged because of constant, continuous flow of heated air pumped through the vents  618 , which clears any clogged debris. As further illustrated, the chamber  602  further includes conduits  616  juxtaposed within a cavity  620  between the inner and outer units  604  and  606  aligned along a longitudinal axis of the third module  220  convey and inject heat from a heat pump  226  into the inner unit  606  via the heat vents  618  of the inner unit  606 , with the heat pump  226  coupled with the third module  220  via heat pump line  622 . The heat pump  226  is a conventional heat pump that operates at non-limiting 80,000 rpm. It should be noted that the illustrated conduits  616  juxtaposed within the cavity  620  in between the inner and outer units  604  and  606  are optional. That is, the heat pump  226  may simply directly pump hot air within the cavity  620  via the heat pump line  622 , which will eventually enter the inner units via the heat vents  618 . 
     As further illustrated in  FIGS. 6A to 6E , the third module  220  further includes an eccentric, asymmetrical auger  630  accommodated within the third chamber  602 , with the fourth motor M 4  coupled to the third chamber  602  for rotating the auger  630 . Further included is a scraper  632  coupled to a second end  634  of the auger  630  and a grill  636  coupled to the second end  614  of the third chamber  602  that pelletize the partially dehydrated smaller, compressed constituent parts into substantially dehydrated (about 60% dry) pellets  224 . 
     The eccentric, asymmetrical auger  630  with flighting  638  is comprised of a cylindrical shaft  640  with helical screw blades  638  (i.e., flighting) with a first distal end  642  that couples with the fourth motor M 4  and the second distal end  634  that is coupled with the scraper  632 . The shaft sections  644  between the flightings  638  have progressively increasing diameter from the first end  640  to the second end  634 . The first distal end  642  of the shaft  640  includes a first interlock section  646  that interlocks with the fourth motor M 4 , and proximal the first end  648  is a support bearing  650  that enables the shaft  640  to rotate. The second distal end  634  of the shaft  640  has a second interlock section  652  that accommodates the cleaner blade or scraper  632 . 
     The helical screw blades  638  constituting the flighting include a progressively decreasing flighting thicknesses from the first to the second end of the shaft  240 , with orientation of thicker sections “T” (T 1 , T 2 , T 3 , . . . , TN) of a flighting complementary to thinner portion “L” (L 1 , L 2 , L 3 , . . . , LN) of a juxtaposed, next, subsequent flighting  638 . A progressively decreasing flight height due to progressively increasing shaft diameter “R” (R 1 , R 2 , R 3 , . . . , RN) of the shaft sections  644  between the flightings  638 . The auger  630  further has a progressively decreasing distance “d” (d 1 , d 2 , d 3 , . . . , dN) between the flightings  638  from the first to the second end of the shaft  640 , wherein volumes “V” (V 1 , V 2 , V 3 , . . . , VN) between flightings  638  of the auger  630  decreases from a first end to the second end of the shaft sections  644  between the flightings  638 . The decreasing volume V enables finer granulation of the particles due to greater compression due to lesser space. The particles are further pushed and grinded, generating a further granulation of the particles. Therefore, the eccentric, asymmetrical auger  630  moves the particle from a first end  610  to the second  614  of the chamber  602  and simultaneously further grinds them. Accordingly, as the size of the particle is reduced, so does the volume V and hence, further grinding of the particles into smaller size. 
     As best illustrated in  FIGS. 6A, 6B, and 6D  the scraper  632  is comprised of a body  660  and an cavity or hole  662  within the body  660  that receives the shaft  640  of the auger  630 , with the hole  662  including a key-notch  664  that interlocks with a second end flange  634  of the shaft  640  (the second end flange  634  has complementary protrusion  676  that interlocks into the key-notch  664  to enable scraper  632  to interlock with and rotate with the shaft  640  rotation). The scraper  632  further includes a plurality of blades  666  that extend from the body  660  that have a top flat section  668  with beveled sides  670  and  672  that end at two lateral sharp edges  674  for severing and scraping particles, wherein the sharp edges  674  sever particles and the beveled sides  670  and  672  scrap up the remaining particle off of the grid  636 . The grid  636  is comprised of a disc like structure  680  with a plurality of through-holes  682  for pelletizing the waste and a center hole  684  that receives the second end  634  of the auger shaft  640 , including periphery notch  686  for interlocking with the second end  614  of the third chamber  602  to prevent the grid  636  from rotating. With respect to the third module, the grid and the scraper may be optionally removed so to generate simple non-pellet form fertilizer material. 
       FIGS. 7A to 7D  are non-limiting, exemplary illustrations of a fourth and fifth mechanisms of a fourth and fifth modules of fourth and fifth stages of the device of  FIGS. 1A to 6E  in accordance with the present invention. As illustrated in  FIGS. 7A to 7D , the device  100  also includes the fourth stage  228  that receives the highly dense substantially dehydrated pellets  224  via the hopper  740 , and includes a fourth mechanism  232  that further dry the pellets  224 . The fourth module  230  is comprised of one or more closed chambers  702  and a conveyer mechanism  704  with one or more conveyer motors  718  ( FIG. 7C ) that moves the highly dense substantially dehydrated pellets  224  through the one or more closed chambers  702  that include dryer elements  710  associated with each chamber  702  to further dry the pellets  224 . The detachable blocking element  730  prevent the pellets  224  existing the fourth stage  228  that fall off the conveyer  704  and into the next stage from falling out of the device  100 . Non-limiting examples of dyer elements  710  may comprise of any one or more of microwave dryers, heating elements, etc., or any combinations thereof. The fourth stage  228  further includes an exhaust channel  712  (i.e.,  712 A,  712 B, and  712 C) along the sides of the fourth mechanism  232  wherein forced air  714  is pushed by an air pump  760  into the channel  712 A to exhaust accumulated heat from the one or more chambers  702 , passing through the channel  712 B ( FIG. 7B ) and directed into channel  712 C where the air exists out and is directed and recycled into the storage module  214 . The recycled heated air from the fourth module  230  and into the storage module  214  enables a more efficient use and operation of the heat element  244  of the storage module.  FIG. 7B  further discloses exposed wiring that provide power to dryer elements  710 . As indicated above, the dryer elements  710  may comprise of microwaves and resistive heating elements that further dry the pellets  224  and substantially destroy most bacteria. 
     As further illustrated in  FIGS. 7A to 7D , the device  100  further includes a fifth stage  234  that includes a fifth module  236  that receives the substantially dried, heated pellets  224  from the preceding forth stage  228 , and includes a fifth mechanism  238  for cooling the heated pellets  224 , which increase the pellet density. The fifth stage module  236  include a conveyer mechanism  750  with one or more conveyer motors  752  that moves the dehydrated, heated pellets  224  across the fifth mechanism comprised of cooling fans  754  that deliver cool air into a continuous fifth chamber to cool the pellets  224 . It should be noted that the fifth stage  234  is closed along the sides  758  ( FIG. 7A ), forming the fifth chamber, but left open in the illustration for clarity. 
     Although the invention has been described in considerable detail in language specific to structural features and or method acts, it is to be understood that the invention defined in the appended claims is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as exemplary preferred forms of implementing the claimed invention. Stated otherwise, it is to be understood that the phraseology and terminology employed herein, as well as the abstract, are for the purpose of description and should not be regarded as limiting. Therefore, while exemplary illustrative embodiments of the invention have been described, numerous variations and alternative embodiments will occur to those skilled in the art. For example, the dimensions of the various elements, amounts of pressure and heat applied, speed of processing and so on may be varied depending on the type of waste and mixtures thereof being processed. Such variations and alternate embodiments are contemplated, and can be made without departing from the spirit and scope of the invention. 
     It should further be noted that throughout the entire disclosure, the labels such as left, right, front, back, top, bottom, forward, reverse, clockwise, counter clockwise, up, down, or other similar terms such as upper, lower, aft, fore, vertical, horizontal, oblique, proximal, distal, parallel, perpendicular, transverse, longitudinal, etc. have been used for convenience purposes only and are not intended to imply any particular fixed direction or orientation. Instead, they are used to reflect relative locations and/or directions/orientations between various portions of an object. 
     In addition, reference to “first,” “second,” “third,” and etc. members throughout the disclosure (and in particular, claims) is not used to show a serial or numerical limitation but instead is used to distinguish or identify the various members of the group. 
     In addition, any element in a claim that does not explicitly state “means for” performing a specified function, or “step for” performing a specific function, is not to be interpreted as a “means” or “step” clause as specified in 35 U.S.C. Section 112, Paragraph 6. In particular, the use of “step of,” “act of,” “operation of,” or “operational act of” in the claims herein is not intended to invoke the provisions of 35 U.S.C. 112, Paragraph 6.