Abstract:
A system and method of cleansing a gas of undesired particulate, aromas, and gases of the type utilizing a liquid to wet a gas stream is provided. The gas scrubber of the present invention including: a container having a bottom wall and a top wall interconnected by a side wall and containing a liquid therein, the top wall having an opening formed therethrough by a sleeve having an inlet opening and an outlet opening interconnected by a throat, and a mechanism for pressurizing the liquid that may include a pump for directing the pressurized liquid through a converging nozzle discharging the pressurized liquid into the throat to draw a gas into the inlet opening and mix with the pressurized liquid in the throat and discharging the mixture into the container releasing the gas from the mixture and discharging the gas to the atmosphere. Undesired gases are removed from the original stream by absorption in the liquid and particulate is dropped out of the gas stream after being wetted by the liquid. The apparatus may utilize devices to energize the liquid reducing the requirements of a conventional pump or eliminating the requirement of a conventional pump.

Description:
TECHNICAL FIELD 
     The present invention relates generally to the field of cleaning a gas stream and more particularly to a method and apparatus for removing particulates and absorbing undesired gases from a gas stream and emitting a cleansed gas by mixing a gas with a liquid in an economical manner. 
     BACKGROUND INFORMATION 
     It is very often desirable to clean a gas stream of particulates and/or undesirable gases. Some gases, such as industrial emissions, must be cleansed or scrubbed until the emission meets legally regulated standards to be emitted into the atmosphere. Car emissions must meet legal standards, at least once a year. It is also becoming more desirable and popular to clean air in domestic settings. In fact, there are studies indicating that indoor pollution may be as great, if not a greater risk, to the individual health than outdoor pollution. 
     Indoor air quality is made worse by the fact that is usually entrapped and recirculated in structures that are sealed to a greater extent than in the past for energy saving reasons. The air which we inhale and exhaled is continually picking up particulates and becoming more comprised of other gases such as carbon dioxide and carbon monoxide in proportion to the oxygen and nitrogen content of the air. Domestic pollution is becoming an increasing health hazard seriously effecting the young an old, those with respiratory problems, asthma and allergies. Some of these irritants and pollutants include, but are not limited to, allergens such as pollen, mold spores, pet dandruff and dust, and gases such as carbon dioxide, carbon monoxide and naptha. Additionally, the surrounding air contains bacteria, viruses and odors that are undesirable. 
     Several methods are currently used to attempt to clean or partially clean gases such as air in a domestic setting. One of the most common methods of “cleaning air” is the utilization of filter systems. Typical filter systems for domestic use utilize a fan to circulate air from the environment through a mesh filter and at times through an additional charcoal source to absorb odors. These systems are very limited in the particulate size that is removed and only mask odors without addressing gases included in surrounding air. For these prior art systems to be even limitedly efficient it is required to frequently replace and/or clean the filters. 
     Other current and prior art air cleaning devices include electrostatic devices that electrically charge particles for capture. Again, this cleaners are very limited what is removed and the quantity of removal of particulate. Another drawback with electrostatic cleaning devices is that the charged dust particles that are emitted excessively collect on furniture, drapes, blinds, frames and the like. 
     Another type of gas cleaner requires the use of a venturi for scrubbing the gas. A venturi gas scrubber is a wet scrubber effective for removal of noxious gases, fumes, odors, particles and dust from a gas stream. Essentially, these type of scrubbers utilize a high velocity motive fluid stream passed through a constricted area to mix the gases with the motive fluid, absorb the selected gases and wet the small particulates for removal. The motive stream and mixed gas are impacted dropping out the particulates. Additionally, the undesired gases and odors are eliminated through absorption or chemical reaction between the undesired gases and the motive or scrubbing fluid. Passing the carrying gas through a mechanical cyclone may eliminate the particles. The primary deficiency in these type gas scrubbers is the pump. The pump required for the motive fluid is expensive, bulky and noisy. 
     It is therefore a desire to provide a method and apparatus for cleansing a gas utilizing a gas scrubbing system that reduces the pump requirements for a quantity of gas to be scrubbed. It is a further desire to eliminate the requirement of a conventional pump while mixing a liquid with a gas for scrubbing the gas. 
     SUMMARY 
     A system and method of cleansing a gas of undesired particulate, aromas, and gases of the type utilizing a liquid to wet a gas stream is provided. The gas scrubber of the present invention including: a container having a bottom wall and a top wall interconnected by a side wall and containing a liquid therein, the top wall having an opening formed therethrough by a sleeve having an inlet opening and an outlet opening interconnected by a throat, and a means of pressurizing the liquid that may include a pump for directing the pressurized liquid through a converging nozzle discharging the pressurized liquid into the throat to draw a gas into the inlet opening and mix with the pressurized liquid in the throat and discharging the mixture into the container releasing the gas from the mixture and discharging the gas to the atmosphere. Undesired gases are removed from the original stream by absorption in the liquid and particulate is dropped out of the gas stream after being wetted by the liquid. 
     An oblong nozzle that produces a thin flat stream may be desired to decrease the pump requirements for scrubbing a gas stream. Additionally, it may be desired to form an oblong throat to combination with the oblong nozzle discharge. 
     A mechanically rotated disk located upstream of the nozzle may be utilized to impart additional energy to the liquid stream as it passes through the nozzle to further reduce the conventional means of pressurizing the liquid. The disk may also have channels formed thereon to aid in imparting energy to the liquid. 
     It may further be desired to eliminate a conventional pump by utilizing a rotating siphon pipe to energize the liquid to create a motive fluid to mix with the gas to be cleaned. The siphon being rotated to draw and energize fluid from the container and discharge it through a nozzle to draw a gas to be cleansed into the throat for mixture with the liquid and discharged back into the container. Different design configurations of the siphon pipe may be utilized. In particular it may be desired to have a conical siphon pipe having a section having a smaller diameter closer to the inlet than the section of the section pipe approximate the outlet. 
     The discharged mixture drops out particulate and the liquid absorbs selected gases. The cleansed gas may then be released to the atmosphere. The partially cleansed gas may be routed through a separating device such as mechanical cyclone to drop out additional particulate and entrained liquid. 
     It should be realized in conjunction with the description of the device that various elements of the invention may be utilized in numerous combinations to achieve the desired results of the invention. For example, and not for limiting purposes, the system may utilize an oblong nozzle and oblong throat in combination with a conventional pump, reducing the pumping requirements typically required by prior art devices for the same amount of gas to be cleansed and liquid for cleansing. Additionally, the conventional pump may be eliminated by use of the siphon pipe singularly or in combination with other elements described. 
     The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of a preferred embodiment of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 
     FIG. 1 is a schematic view of a gas scrubber of the present invention. 
     FIG. 1A is a view of nozzle  124  and the exiting motive fluid stream along section line I—I of FIG.  1 . 
     FIG. 1B is a view of throat  129  of funnel  128  as shown along section line II—II of FIG.  1 . 
     FIG. 2 is a schematic view of an embodiment of the gas scrubber of the present invention. 
     FIG. 2A is a view of nozzle  224  shown along the section line III—III of FIG.  2 . 
     FIG. 2B is a view of throat  229  formed by funnel  228  along the section line IV—IV of FIG.  2 . 
     FIG. 3 is a schematic view of an embodiment of the gas scrubber of the present invention. 
     FIG. 4 is a schematic view of another embodiment of the gas scrubber of the present invention. 
     FIG. 5 is a schematic view of another embodiment of the gas scrubber of the present invention. 
     FIG. 6 is a schematic view of another embodiment of the gas scrubber of the present invention. 
     FIG. 6A is an isolated, perspective view of the disk as shown in relation to its operation in relation to FIG.  6 . 
     FIG. 7 is a schematic view of another embodiment of a gas scrubber of the present invention replacing the pump of the previous embodiments. 
     FIG. 8 is a schematic view of another embodiment of the gas scrubber of the present invention. 
     FIG. 9 is a top view of a modified disk. 
     FIG. 10 is view of another embodiment of the disk of the present invention. 
     FIG. 11 is a side view of along the section line V—V of FIG.  10 . 
     FIG. 12 is a schematic view of an embodiment the gas scrubber of the present invention intended for home use. 
     FIG. 13 is a view along section line VI—VI of FIG.  12 . 
    
    
     DETAILED DESCRIPTION 
     Refer now to the drawings wherein depicted elements are not necessarily shown to scale and wherein like or similar elements are designated by similar reference numerals through the several figures. 
     FIG. 1 is a schematic view of a gas scrubber, generally denoted by the numeral  100 . Scrubber  100  includes a container  110 , a pump  114 , a venturi scrubber denoted generally as  127  and a centrifugal separator  150 . As shown, container  110  is connected to pump  114  via a pipe  116 ; pump  114  is connected to venturi scrubber  127  via a pipe  120 ; venturi scrubber  127  is functionally connected to container  110 ; container  110  is functionally connected to centrifugal separator  150  via line  146 ; and centrifugal separator  150  is connected to container  110  by a return line  154 . For brevity, centrifugal separator  150  will be referred to as a “cyclone” hereinafter. 
     Container  110  contains a fluid  113  for absorbing undesired gases from a gas stream and for wetting particulates in a gas stream for removal. Fluid  113  may be water and/or other chemical combinations to remove odors, carbon dioxide, particulates, allergens, dust, bacteria and other undesirable elements and compounds. Chemicals, well known in the art, such as, but not limited to chlorine and copper sulfate and odor masking agents may be added to liquid  113  to aid in the absorption of undesired gases and/or to enhance the aroma of the emitted cleansed air stream. When fluid  113  is water and utilized to clean air an excessive amount of water may be absorbed by the air. Therefore, it may be desired to utilize a light oil as fluid  113  to reduce the retention of water in the emitted cleansed air stream. Many different solutions may be utilized for fluid  113  and are well known in the art. Fluid  113  may include propylene glycol. Propylene glycol is a substantially odorless and colorless compound that may be utilized as a disinfectant. Propylene glycol also suppresses the absorption of water by the gas being scrubbed. Thus reducing the humidity of the scrubbed gas and also lowering the consumption of fluid  113  used by the scrubbing device. The use of propylene glycol also aides in reducing the propagation of bacteria. 
     Container  110  includes a top wall  101  and bottom wall  103  connected by a sidewall  107 . A sleeve or cylinder  127 , which serves as a venturi, having an inlet-opening  128  and outlet-opening  109  extends through top wall  101 . Opening  128  is positioned toward the exterior of container  110  for admittance of a gas  115 . Outlet-opening  109  is positioned within container  110 . 
     Sleeve  127 , which serves as a venturi, includes an inlet opening  130  connected by throat  129  to an outlet opening  109 , shown formed by an inverted funnel section  138 . As is well known in the art, venturi  127  may be utilized as a gas scrubber by passing a pressurized fluid  121  through a nozzle  124  positioned within a suction chamber  131  forcing the motive fluid  126  through a funnel  128  and into a mixing chamber  136  and exiting through an outlet opening  109 . As motive fluid  126  passes from nozzle  124  through suction chamber  131  into funnel  128  it draws a gas  115 , such as air, into stream  126  as indicated by arrows  132  and  134 . As shown in FIG. 1, gas  115  is drawn from the surrounding atmosphere through a conduit  130 . 
     More specifically, in relation to FIG. 1, container  110  holds a liquid  113  that is drawn into pump  114  through pipe  116  as indicated by arrow  118 . Pump  114  produces a pressurized liquid  121  that flows through pipe  120  to converging nozzle  124  as indicated by arrow  122 . Pressurized fluid  121  is discharged through nozzle  124  which causes pressurized fluid  121  to accelerate as it passes through the converging nozzle  124  and exits nozzle  124  as motive fluid stream  126  as shown by the arrow. In a typical venturi scrubber  127 , nozzle  124  is of the converging type if motive fluid  126  is a liquid, or of the expanding type if motive fluid  126  is steam or another gas. 
     Gas  115  from the surrounding atmosphere enters venturi scrubber  127  through conduit  130  and into suction chamber  131  as indicated by arrow  132 . Within suction chamber  131  gas  115  is drawn into motive fluid stream  121 . Since liquid pressurized fluid  121  is substantially non-compressible and non-expandable, it breaks up into many small droplets and the space between these droplets becomes occupied by gas  115  in chamber  131 . Gas  115  disposed between motive fluid  121  droplets obtain substantially the same high velocity as motive fluid  126  and the friction between the periphery of the mixture of motive fluid  126  and gas  115  draws addition gas  115  with stream  126  into funnel  128 . This process forms a low pressure zone in suction chamber  131  and draws additional atmospheric gas in through conduit  130 . 
     Gas  115  is further mixed with the motive fluid  126  as it flows at a high velocity through the throat  129  of mixing chamber  136 . As mixture  126  flows through inverted funnel  138  the kinetic energy is converted to pressure and discharged into container  110  impacting the surface  112  of fluid  113  Some of the mixture continues beneath surface  112  of liquid  113 , as indicated by arrows  142 , to further entrain and mix gas  115  with the liquid. 
     Funnel  128 , mixing chamber  136 , and inverted funnel  138  and motive fluid nozzle  124  form venturi scrubber  127 . Funnel  128 , having a restrictive throat  129 , is the converging inlet to venturi scrubber  127 . Mixing chamber  136  is the center restriction of venturi scrubber  127  and may be lengthened as desired to afford additional mixing of gas  115  and motive fluid  126 . Inverted funnel  138  is an expanding diffuser of venturi scrubber  127  that reduces the velocity of stream  126  and converts the kinetic energy to pressure at discharge into container  110 . 
     Inverted funnel section  138  is usually used in a standard venturi scrubber apparatus, and is shown in FIG. 1 only to show how it is sometimes used. However, it has been found that in actual practice, for some uses, the omission of inverted funnel section  138  allows the mixture of gas and liquid  126  to flow directly from mixing section  136  at a greater velocity and force, disposing at least a portion of stream  126  beneath surface  112  of fluid  113 . This greater force of the mixed stream  126  hitting surface  112  of fluid  113  and submerging the mixture improves the removal of smaller particulates from the original gas stream  115 . Also, mixing section  136  may be shortened or completely omitted on some designs since some mixing of gas  115  and fluid  126  takes place at as stream  126  enters funnel  128  and flows through the outlet throat  129  of funnel  128 . The outlet throat  129  of funnel  128  actually acts as a check valve since the restriction is sized to be only slightly larger than mixture stream  126  and the high velocity of stream  126  allows flow in only one direction. Accordingly, the down stream pressure of funnel  128  in container  110  is greater than the up stream pressure in suction chamber  131 . 
     Gas  115  separates by gravity and impact from the stream  126  and fluid  113  in container  110 . Due to the higher pressure in container  110 , as explained above, partially cleansed gas  115  flows out of container  110  as indicated by arrow  144 . The released gas  115  flows through pipe  146 , as indicated by arrow  148 , and to cyclone  150  through tangential nozzle  152 . Cyclone  150  is a simple mechanical device for centrifugal separating particulates and free liquid mist and droplets from gas, well known in the art. These droplets coalesce on the inside wall of cyclone  150  and gravitate through pipe  154  to container  110  as indicated by arrow  156 . The processed gas  115  flows out cyclone  150  as indicated by arrow  158 . 
     FIG. 1A is a view of nozzle  124  and the exiting motive fluid stream  126  along section line I—I of FIG.  1 . Nozzle  124  forms a round outlet that produces an accelerated round jet stream of motive fluid  126 . 
     FIG. 1B is a view of throat  129  of funnel  128  as shown along section line II—II of FIG.  1 . Throat  129  is a substantially circular opening that is larger in diameter than the outlet of nozzle  124 . 
     FIG. 2 is a schematic view of a gas scrubber, generally denoted by the numeral  200 , of the present invention. Container  210  holds liquid  213  that is pumped by pump  214  through pipe  216  as indicated by arrow  218 . The pump creates a pressurized liquid  221  that flows through pipe  220  to oblong shaped nozzle  224  as indicated by arrow  222 . The pressurized fluid  221  flows through converging oblong shaped nozzle  224  which causes the motive fluid  226  to accelerate as it passes through the oblong shaped converging portion of nozzle  224  and exits the nozzle in a high velocity thin fan shaped stream, as shown by arrows  226 . 
     Gas  215  enters the sleeve  227 , shown as a venturi scrubber, through conduit  230  as indicated by arrows  232  and  234 . The suction chamber  231  is where the pumping takes place. As the accelerated motive fluid  226  leaves nozzle  224 , as indicated by the arrow, the friction between it and the suction gas  215  in suction chamber  231  forces mixture  226  into the oblong shaped funnel section  228  and through throat  229 , lowering the pressure in chamber  231  and drawing more gas  215  through conduit  230  and through inlet-opening  223  defined by funnel section  228  into throat  229 . This arrangement creates a draft that accelerates the removal of gas  215  through conduit  230  in accordance with arrow  232 . The motive fluid  226  entrains gas  215  and uniformly mixes the combined stream in funnel section  228  and throat  229 , as indicated by arrows  240 . Some of the mixture continues on beneath the surface  212  of liquid  213 , as indicated by arrows  242 , to further entrain and mix gas  215  with the liquid  213 . 
     Gases  215  separate from the liquid in container  210  and flow out of the container as indicated by arrow  244 . The gas flows through pipe  246 , as indicated by arrow  248 , to cyclone  250  through tangential nozzle  252 . Cyclone  250  is a simple cyclone and centrifugally separates free liquid mist and droplets and particulates contained in the mist and droplets, from the gas. These droplets coalesce on the inside wall of the cyclone and gravitate through pipe  254  to container  210  as indicated by arrow  256 . The processed gas  215  flows out cyclone  250  as indicated by arrow  258 . 
     FIG. 2A is a view of nozzle  224  shown along the section line III—III of FIG.  2 . Nozzle  224  forms an oblong outlet that produces a flat fan or oblong shaped stream, as shown by angle  225 , of motive fluid  226  that is discharged. 
     FIG. 2B is a view of throat  229  formed by sleeve  227  along the section line IV—IV of FIG.  2 . Throat  229  is formed in an oblong fashion having dimensions larger than the oblong shape of nozzle  224 . Throat  29  receives the mixture of motive fluid  226  and gas  215 . 
     It has been found that pump  114  (FIG. 1) is unusually expensive and noisy, especially for home use. This excess expense and noise is due to the low volume of liquid  113  required to yield high-pressure fluid  121 . It has been found that changing nozzle  114 , having a round nozzle, to a converging oblong nozzle  214  (FIG. 2) forming a flat fan or oblong shaped motive fluid stream  226  requires a lower pressure, pressurized fluid  221 . This lower pressure requirement of fluid  221  over fluid  121  allows for the downsizing of pump  114  to pump  214  thereby reducing costs and often reducing noise levels. 
     The peripheral surface of the flat oblong motive fluid stream  226  of FIGS. 2 and 2A is greater than the periphery surface of the round motive fluid stream  126  of FIGS. 1 and 1A, with both streams utilizing approximately the same quantity of liquid  113  or  213 . Because oblong motive stream  226  contacts more gas  215  for the same quantity of liquid  213  as round motive stream  126  a lower pressure is required for pressurized fluid  221  of pressurized fluid  121 . This lower pressure requirement allows for the reduction of pumping requirements of pump  214  over that of pump  114 . 
     The angle  225  of flat fan (oblong) shaped stream  226  can be any desired angle. In fact, it can be a complete circle making a 360 degree flat stream shown as  326  in FIG.  3 . These various shaped streams can be obtained easily by experimenting with the nozzles. Nozzles can be purchased from manufacturers who specialize in making various sizes and shapes of nozzles that produce various types of streams, including thin fan shaped, flat streams, and flat hollow cone streams. One such manufacture is Bette Fog Nozzle, Inc, currently located at PO Box 1438, 50 Greenfield Street, Greenfield, Mass., 01302-1428. 
     FIG. 3 is a schematic view of a gas scrubber, generally denoted by the numeral  300 , of the present invention. Scrubber  300  is substantially the same as scrubber  200  of FIG. 2 except that nozzle  324  produces a flat 360-degree stream of high velocity liquid  326 . 
     In operating scrubber  300 , high pressure liquid  321  is formed by nozzle  324  to a high velocity 360 degree fall circle motive stream of thin liquid  326 . Gas  315  enters gas scrubber  300  through suction chamber  331  as indicated by arrows  334 . The entrance chamber  331  is where the pumping takes place. As the accelerated motive fluid stream  326  leaves nozzle  324 , as indicated by the arrows, stream  326  expands and breaks up into many small droplets and the space between these droplets becomes occupied by gas  315  in chamber  331 . The friction between the periphery of this mixture of accelerated liquid and gas of stream  326  and gas  315  in entrance  330  carries additional gas  315  with stream  326  and forces the mixture into inlet-opening formed by funnel  328  and through throat  329  lowering the pressure in entrance  331  and drawing in more gas  315 . This arrangement creates a draft that accelerates the removal of gas  315  from entrance  330 . Funnel section  328  is a full circle converging section, having full circle throat  329 , that concentrates and directs the full circle mixture  326  from entrance  331  to the inside of chamber  310  and against a wall  307  of container  310 . Motive fluid  326  entrains gas  315  and uniformly mixes the combined stream in the funnel  328  and throat  329  of sleeve  327 . In other regards, scrubber  300  operates the same as scrubber  100  and  200  of FIGS. 1 and 2. Pump  314  pumps liquid  313  having surface  312 , through suction pipe  316 , as shown by arrow  318 , through discharge pipe  320  and  324 , as shown by arrow  322 , to nozzle  324 . Gas flows out of container  310 , as shown by arrows  340  and  344 , through pipe  346 , as shown by arrow  348 , and to cyclone  350  through tangential nozzle  352 . Droplets from the gas coalesce on the inside wall of cyclone  350  and gravitate through pipe  354  to container  310  as shown by arrow  356 . The processed gas flows out of cyclone  350  as shown by arrow  358 . 
     FIG. 4 is a schematic view of another embodiment of the gas scrubber of the present invention generally denoted by the numeral  400 . FIG. 4 shows a scrubber  400  having a nozzle  424  that produces a 360 degree hollow cone shaped, thin stream of high velocity liquid  426 . Gas  415  is pulled from the outside of container  410  through inlet opening  430  to the inside  431  of container  410  as shown by arrows  434 . 
     One advantage of the hollow cone shaped stream  426  is that motive stream  426  is directed downward as it pulls gas  415  through full circle inlet-opening  428 , and full circle throat  429 , having opening  409 , of sleeve  427 , and the mixture of gas  415  and in stream  426  impacts surface  412  of liquid  413 , as indicated by arrow  440 , submerging mixture  426  beneath surface  412 . This feature is also very important since mixture  426  hitting surface  412  of liquid  413  is considerably quieter than the mixture hitting sidewall  307  of container  310 , as shown in FIG.  3 . Pump  414  pumps liquid  413 , having surface  412 , through suction pipe  416 , as shown by arrow  418 , through discharge pipe  420 , as shown by arrow  422 , to produce pressurized stream  421  that flows to nozzle  424 . Gas flows out of container  410  through pipe  446 , as shown by arrow  448 , and to cyclone  450  through tangential nozzle  452 . Droplets from the gas coalesce on the inside wall of cyclone  450  and gravitate through pipe  454  to container  410  as shown by arrow  456 . The processed gas flows out of cyclone  450  as shown by arrow  458 . 
     FIG. 5 is a schematic view of another embodiment of the gas scrubber of the present invention generally denoted by the numeral  500 . Gas scrubber  500  further includes a disk  580  rotatable connected to a motor  592  via shaft  590 . Rotatable disk  580  reduces the requirements of pump  514 , while producing the necessary motive stream  526  for scrubbing, thereby reducing the cost of the apparatus and the noise in comparison to some other embodiments of the present invention. Pump  514  pumps liquid  513 , having surface  512 , through suction pipe  516 , as shown by arrow  518 , through discharge pipe  520  and  524 , as shown by arrow  522 , to disk  580 , as shown by arrow  523 . Gas  515  is pulled to the inside of container  510  through opening  530  by fluid stream  526  as shown by arrows  534 . Gas flows out of container  510  through pipe  546 , as shown by arrow  548 , and to cyclone  550  through tangential nozzle  552 . Droplets from the gas coalesce on the inside wall of cyclone  550  and gravitate through pipe  554  to container  510  as shown by arrow  556 . The processed gas flows out of cyclone  550  as shown by  558 . 
     Pressurized stream  521  may be of a lower pressure stream delivered by pump  514  than the pressurized streams of the previous embodiments. Steam  521  is delivered through conduit  520  to rotating circular disk  580  as shown by arrow  523 . When stream  521  contacts rotating disk  580  it is propelled outward and forced through converging nozzle  524  (similar to nozzle  324  of FIG. 3) which produces a high velocity, full circle, thin stream of motive fluid  526 . Motive fluid stream  526  mixes with gas  515  and pulls the mixture through converging funnel inlet-opening  528  and throat  529  of sleeve  527  as described in regard to the similar elements of FIG.  3 . 
     Scrubber  500  may utilize a lower pressure, smaller, quieter and less expensive pump  514  than some of the other described pumps to produce motive stream  526  due to disk  580 . Disk  580  and motor  592  are typically a less precise and less expensive way to produce high velocity, motive stream  526 . 
     FIG. 6 is a schematic view of another embodiment of the gas scrubber of the present invention generally denoted by the numeral  600 . 
     Gas scrubber  600  is substantially the same as scrubber  500  (FIG. 5) utilizing a nozzle  624  is directed downward in a similar manner as hollow cone nozzle  424  described in relation to FIG.  4 . 
     Nozzle  624  produces the mixed stream  626  that hits the surface  612  of liquid  613  with stream  626  as shown by arrow  640 , and submerges the mixture, as shown. Scrubber  600  may be preferred over scrubber  500  because it is quieter. Operation of scrubber  600  is described in relation to the scrubbers of FIGS. 4 and 5. Pump  614  pumps liquid  613 , having surface  612 , through suction pipe  616 , as shown by arrow  618 , through discharge pipe  620  and  624  as liquid  621 , as shown by arrow  622 , to disk  680 , as shown by arrow  623 . Rotatable disk  680  is rotated by shaft  690  by motor  692 . When stream  621  contacts rotating disk  680  it is propelled outward and forced through converging nozzle  624  which produces a high velocity, full circle, thin stream of motive fluid  626  which mixes with gas  615  and becomes a high velocity mixed stream  626  of fluid  621  and gas  615 . Motive fluid stream  626  and mixed stream  626  are the same stream and it pulls the mixture through converging funnel inlet opening  628  and through  629  of sleeve  627 . Nozzle  624  is directed downward, as shown, so that the steam  626  hits surface  612  as shown by arrows  640 . Gas  615  is pulled to the inside of container  610  through pipe  646 , as shown by arrow  648 , and to cyclone  650  through tangential nozzle  652 . Droplets from the gas coalesce on the inside wall of cyclone  650  and gravitate through pipe  654  to container  610  as shown by arrow  656 . The processed gas flows out of cyclone  650  as shown by arrow  658 . 
     FIG. 6A is an isolated, perspective view of disk  680  shown and described in relation to its operation depicted in FIG.  6 . Disk  680  is rotating as shown by the arrow  6120  by shaft  690 . As fluid stream  626  in FIG. 6 is discharged from disk  680  at point  625  it moves with a force and in a direction that is  90  degrees to the direction of rotation as shown by force arrow  6126 . Since nozzle  624  of FIG. 6 is directed downward at location  625  shown in FIG. 6A, the liquid moves with a force and in a direction as shown by force arrow  6128 . Forces  6126  and  6128  produce a resultant force as shown by arrow  6130  (stream  626  in FIG.  6 ), which is down and in the direction of rotation of disk  680 . 
     FIG. 7 is a schematic view of another embodiment of a gas scrubber of the present invention generally denoted by the numeral  700 . Scrubber  700  eliminates the pump as described in the previous embodiments and replaces the pump with a siphon pipe  7150  and disk  780  connected to motor  792  via shaft  790 . 
     Siphon pipe  7150  is rotatably connected to disk  780  and nozzle  724 . Siphon pipe  7150  is cone shaped having an inlet opening  7156  disposed below surface  712  of liquid  713 . Pipe  7150  also has an outlet opening  7154  located proximate disk  780 . Outlet opening  7154  is larger than inlet opening  7156  as indicated by the cone shape of siphon pipe  7150 . 
     Since inlet opening  7156  is submerged in liquid  713 , liquid  713  flows inside and up siphon pipe  7150  as indicated by arrows  7160 , as pipe  7150  rotates. The rate of flow of liquid  713  can be selected since the flow rate is dependant on the size of opening  7156  and the amount of liquid head produced by the depth that inlet opening  7156  is submerged. Since pipe  7150  is rotating, the liquid inside of cylinder  7150  rotates with the cylinder and is centrifugally forced outward and up the cylinder, as indicated by arrows  7161 , and since the rim of outlet opening  7154  is further out than the rim of inlet opening  7156 , the liquid flows on to disk  780 , as indicated by liquid  7162 . 
     As seen from above, siphon pipe  7150  serves as a simple and economical pump. An easy, simple, and economical way to transfer, and return, a selected amount of liquid  713  from beneath disk  780  up and to disk  780 . Since siphon pipe  7150  is really a pump, impellers, disks, or partitions may be added to the inside of pipe  7150 , if desired, to aid in the rotation of the liquid. However, these are not shown in the drawings since they are not needed in most cases. 
     In operating the apparatus of FIG. 7, container  710 , having an opening  730  and a full circle funnel opening  728 , with full circle throat  729 , that encircles rotating disk  780 , contains a liquid  713 . Rotation of disk  780  and pipe  7150  draws liquid  7162  from liquid  713  onto disk  780  and imparts a high velocity to liquid  7162 . Liquid  7162  flows out of converging circular outlet  728  in a high velocity thin circular stream of liquid  726  that flows through circular funnel  728  and throat  729  attached to sleeve  727 , as indicated by arrows  726 . Since cylinder  7150  rotates with disk  780 , the liquid inside of pipe  7150  is forced outward centrifugally and up and out opening  7154 , as indicated by arrow  7161 , to replace the liquid  7162  on disk  780 . 
     When high velocity liquid stream  726  flows through circular funnel  728  and throat  729 , it pulls gas  715  through opening  730 , as shown by arrow  734 , and through throat  729 , as indicated by arrows  726 , and to the inside of container  710 . Gases  715  separate from the liquid in container  710  and flow out of the container as indicated by arrow  744 . The gas flows through pipe  746 , as indicated by arrow  748 , and to cyclone  750  through tangential nozzle  752 . Cyclone  750  is a simple cyclone, well known by those familiar with the art, and centrifugally separates free liquid mist and droplets from the gas. These droplets coalesce on the inside of the cyclone and gravitate through pipe  754  to container  710  as indicated by arrow  756 . The processed gas  715  flows out cyclone  750  as indicated by arrow  758 . 
     The bottom circular section  7280  of funnel  728  may be omitted, if desired, since the liquid  726  flows close enough to the top portion of funnel  728  to draw gas  715  into container  710 . If the bottom circular section  7280  of funnel  728  is omitted, then, the top section of funnel  728  serves as throat  729  and forms a partition that forms a restricted area between the wall of the top section of funnel  728  and surface  712  of the liquid which prevents a backflow through said restricted area due to the high velocity of stream  726 . 
     A circular plate  7168  may be added, if desired, to deflect the liquid and gas mixture  726  at point  7170  down and beneath the surface of liquid  713 , as indicated by arrows  7172 . Circular plate  7168  sometimes results in a quieter operation of scrubber  700 . 
     FIG. 8 is a schematic view of another embodiment of the gas scrubber of the present invention generally denoted by the numeral  800 . Scrubber  800  includes a nozzle  824  angled downward to direct the flow of motive fluid stream  826  below surface  812  of fluid  813  as indicated by arrow  840 . Gas flows out of container  810  through pipe  846 , as shown by arrow  848 , and to cyclone  850  through tangential nozzle  852 . Droplets from the gas coalesce on the inside wall of cyclone  850  and gravitate through pipe  854  to container  810  as shown by arrow  856 . The processed gas flows out of cyclone  850  as shown by arrow  858 . 
     Scrubber  800  also differs from scrubber  700  of FIG. 7 in that cone shaped siphon pipe  7150  is replaced with a substantially cylindrical siphon pipe  8150 . This illustrates that the siphon pipe can be formed in various shapes and sizes and will operate as long as inlet opening  8156  allows fluid  813  to flow inside of siphon pipe  8150 , as shown by arrows  8160 , and is smaller than outlet opening  8154  and positioned proximate the central axis of siphon pipe  8150 . 
     Further scrubber  800  does not have a deflection plate such as  7168  in FIG.  7 . This is shown to illustrate that a deflection plate is not required although it may be desired and due to the mixture stream  826  being directed beneath surface  812  via nozzle  824 . 
     Scrubber  800  further includes a propeller  8180  rotatably connected to shaft  890 . Optional propeller  8180  pushes additional gas  815  through opening  830  of container  810 , as shown by arrows  834  and, accordingly, mixes a greater quantity of gas  815  with the motive fluid stream  826 . A regular fan shaped propeller  880  is shown in FIG.  8 . However, any type of fan may be used, such as squirrel cage fan blades attached to nozzle  824 , not shown, associated with funnel  828 . 
     It is sometimes desirable to increase the quantity of gas flow through the scrubber of the present invention, relative to the rate of liquid flow, so propeller  8180  may selectively be added to any of the apparatus shown having a rotating disk with a shaft and motor. 
     Stream  826  of FIG. 8 is a solid thin high velocity 360 degree stream of driving fluid that flows under the top section of funnel  828  and through throat  829 . The bottom section of funnel  828  is not shown, since it has been found that it may sometimes be omitted. It has been found that it is not necessary for stream  826  to be a solid undivided stream. In fact, it has been found that it is may be beneficial to have the 360 degree stream to consist of multiple small individual steams that are very close together, but yet separate. These multiple small individual streams are shown in FIG.  9 . 
     FIG. 9 is a top view of a modified disk such as disk  880  of FIG.  8 . Disk  980 , of FIG. 9 is rotating in the direction indicated by arrow  9120  and is attached to pump cylinder  9150  and to shaft  990  by spokes  991 , as shown. Disk  980  is associated with the top section of funnel  928 , having throat  929  not shown. For clarity, only a partial circle of funnel  928  is shown. 
     Outlet rim  924  of disk  980  is provided with individual channels  9172  that are directed outward and downward from rotating disk  980 . This separates stream  9162  into individual stream  926  that are directed downward and in the direction of rotation, as shown. For clarity, the rim of disk  980  is only shown with a few channels  9172  and streams  926 . The rim may be completely filled with channels  9172  that nearly touch each other and individual streams  926  completely encircle disk  980 . 
     The individual streams  926  are sufficiently close to each other that gas that is associated with the high velocity streams  926 , and mixed between the streams, becomes mixed with the liquid and the mixture is carried out beneath the top section of funnel  928 , and through throat  929  not shown, to the receiving chamber. 
     It has been found that channels  9172  of FIG. 9 can be formed in many different ways that shape the resultant stream of combined streams  9172 . For example, streams  926 , that completely encircles disk  980 , can be separated in groups as shown in FIG.  10 . 
     FIG. 10 is view of another embodiment of the disk of the present invention. Disk  1080 , which is attached to shaft  1090  by spokes  1091  and siphon pipe  10150 , is rotated in accordance with arrow  10120 . Liquid stream  10162  flows to channels  10172  on rim  1024  of disk  1080 . The rim of disk  1080  is provided with four groups of channels  10172  as shown. However, more groups of channels  10172  could be provided, if desired. The four groups of channels  10172  provide four groups of individual streams  1026 . FIG. 11 discloses that not only can stream  1026  consist of multiple small streams of  1026  but that multiple streams  1026  can be arranged in groups having different shapes. This is advantageous when each group of multiple streams of  1026  is shaped like a propeller blade. If the four groups of streams  1026  of FIG. 10 are formed like four liquid propeller blades, then the groups of streams  1026  serve as a partial fan, in addition to the friction effect associated with the throat of the top section of funnel  1028 , to move and to mix gas  1015  with the liquid  1026 . 
     A group of stream  1026  can be formed in any desired shape by ending the end of each individual channel of the selected group in a different location. These ends can be progressively lower from one to the other, or progressively further around the disk rim from one to the other. Accordingly, a liquid propeller can be selectively formed that can either push or pull gas  1015 . 
     FIG. 11 is a side view of a along the section line V—V of FIG. 10 showing disk  1080 , siphon pipe  10150  and top funnel section  1028  with throat  1029 . This drawing shows one way that propellers  11180  can be provided with channels  1128  to direct the liquid  1126  to desired positions relative to throat  1129 . 
     In FIG. 11, funnel section  1128  is called a funnel because it serves the same purpose as funnels  128  and  228  in FIGS. 1 and 2. However, funnel  1128  in FIG. 11 is really a partition that serves as a check valve to the flow of mixture  1126  by forming a restricted area, throat  1129 , between the wall of funnel  1128  and surface  1112  of the liquid. A gas cannot backflow through said throat  1129  due to the high velocity flow of stream  1126 . 
     Disk  1180 , which rotates counter-clockwise looking down, is attached to rotating shaft  1192 , as shown. Cylinder  11150  has inlet-opening  11156  that is submerged below the surface  1112  of liquid  1113 . Since opening  11156  is submerged, liquid flows through opening  11156  to the inside of the siphon pipe  11150  as shown by arrows  11160 . And since the siphon pipe  11150  is rotating, liquid  1113  is centrifugally forced outward and upward as shown by arrow  11161 . The liquid  11162  flows out of openings  11163  and on to the leading side of blades  11180 . Openings  11163  in the wall of cylinder  11150  are in front of the leading side of the blades, in the direction of rotation of the cylinder, as shown by the near opening  11164 . Blades  11180  are attached to disk  1180  and/or cylinder  11150  at an angle  11166 , as shown, to push the gas downward. Blades  11180  are provided with channels, or grooves,  11172  to direct the flow of liquid below the top section of funnel  1128 . Each individual end of each groove ends at a different location on the bottom portion of blades  11180 , as shown, such that the combined stream of  1126  liquid is shaped like a propeller blade that flows through throat  1129  and impacts the surface of liquid  1113 , submerging the mixture of gas and liquid. 
     FIG. 12 is a schematic view of an embodiment the gas scrubber of the present invention, generally denoted by the numeral  1200 , intended for home use. Container  1210  contains liquid  1213  which has surface  1212 . Motor  1292  has shaft  1290  which is connected to disk  1280  having nozzle  1224  and siphon pipe or pump cylinder  12150  with inlet nozzle  12156  submerged, as shown. The top of container  1210  forms an opening  1234  which defined by interior walls  12280  that form funnel  1228  having throat  1229 , as shown. Funnel  1228  serves as a partition for scrubber  1200  forming throat  1229 , as previously explained for funnel  1128  of the apparatus of FIG.  11 . 
     Container  1210  is in fluid connection to elongated section  1250 , having outlet nozzle  1251 , which serves as a cyclone to drop particulates and entrained liquids from the cleansed stream. 
     In operating the apparatus of FIG. 12, liquid  1213  inside of rotating siphon pipe  12150  flows through inlet nozzle  12156 , as previously explained, and is centrifugally forced outward and up and out the top of cylinder  12150  and to the top of disk  1280 . Disk  1280  centrifugally forces the liquid outwardly and through nozzle  1224 . Nozzle  1224  is a converging nozzle that is directed downward such that the high velocity flow of liquid  1226  is also directed downward and is submerged beneath the surface  1212  of liquid  1213 , as shown. 
     FIG. 13 is a view of scrubber  1200  along section line VI—VI of FIG.  12 . FIG. 12 and 13 are further described in conjunction to one another. In FIG. 13, disk  1280  rotates in a clockwise direction as shown by arrow  13120 . Accordingly, the liquid and the gas  1215  in the area of pump cylinder  12150  and disk  1280  also rotates in a clockwise direction. Since the pressure is higher on the inlet end of container  1210  than on the outlet end, the gas  1215  flows, as indicated by arrow  13282 , tangentially through opening  13284 , which is a partial opening in cylinder  1250  inside of container  1210 , as shown by arrow  1244  in FIG.  12 . Since the gas enters cylinder  1250  tangentially as shown, it rotates inside of cylinder  1250  in a clockwise direction as shown by arrow  13286  of FIG.  13  and arrow  12144  of FIG.  12 . This rotation centrifugally forces the liquid mist and free liquid droplets to the inside wall of cylinder  1250  where they coalesce with any particulates that they contain and gravitate down to liquid  1213 , as shown by arrow  1256  in FIG.  12 . The gas rotates inside cylinder  1250  as shown by arrow  12144  of FIG. 12, and inside outlet cylinder  1251  as indicated by arrow  1258  and free of liquid mist and droplets, flows out of cylinder  1250 . 
     If additional gas  1215  is desired to be processed by the apparatus  1200 , optional propeller  12180  may be attached to shaft  1290 , as shown, or squirrel cage type fan blades, not shown, may be attached to the top of nozzle  1224 . 
     Nozzle  1224  is shown directed downward, however it can be the nozzle and blades  11180  of FIG. 11 or other nozzles like nozzle  924  with grooves  9172  like in FIG.  9 . 
     It is not necessary to direct nozzle  1224  downward if nozzle  1224  is provided with relatively small grooves, like grooves  9172  in FIG. 9, and the disk is rotating at a relatively high revolution. This is because the very small streams of high velocity liquid quickly break up into small mist like droplets which scrub gas  1215  forced down through it by propeller  12180 . In this case, the liquid stream  1226  should be greater than around  40  feet per second. 
     In using the apparatus of FIG. 12, or any of the apparatuses described herein, for home utilizing water, or a mixture containing water, to scrub the air, the air usually absorbs some of the water, so the apparatus also serves as a humidifier. In this case, it is necessary to continually add water as the apparatus is being used. According, level controller  12290  may be added to control valve  12292  which controls the addition of liquid to container  1210  as shown by arrow  294 . The operation of controller  12290  and valve  12292  is well known by those familiar with the art and is not further described herein. 
     Also well known is the method of using a small vessel  12296  connected to an extension pipe  12297  extending into container  1210  through a seal  12298  and having an extended end  12299  positioned at the below surface level  1212  at a minimum level to allow surface  1212  to extend As surface level  1212  falls beneath extended end  12299 , the vacuum in vessel  12296  is broken which allows fluid to gravitate from vessel  12296  through extension  12297  into container  1210  until extended end  12299  is submerged again. The vessel  12296  is refilled manually, as required. 
     Although the present invention and its advantages have been described in relation to the illustrated embodiments if should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. For example, it should be realized that various elements as described in the various can be added in varying combinations to satisfy the invention as claimed. As demonstrated above, elements of the invention that are the same or similar in various figures are numbered in a manner to reflect the similarity while numbering elements to correspond to the particular Figure.