JP2007136333A - Apparatus for treating garbage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wet type apparatus for treating garbage capable of maintaining its stable and high treatment capacity by virtue of microbes in treated water whose activity is enhanced by supplying them with a small amount of water that contains a large amount of oxygen. <P>SOLUTION: The apparatus for treating garbage wherein garbage introduced through an introduction pipe 14 into a treatment tank 1 is periodically agitated by agitation pumps 4, 4 together with the treated water 2 stored in the treatment tank 1 and is decomposed by the activity of the microbes living in the treated water 2 is characterized by comprising a replenishment water tank 5 for storing replenishment water 51 to be suitably fed to the treatment tank 1, a cooler 7 disposed in the replenishment water tank 5 for cooling the replenishment water 51, and a micro-bubble generator 6 disposed in the replenishment water tank 5 that generates and discharges micro-bubbles 61 into the replenishment water 51 to allow oxygen to dissolve in the replenishment water 51 to the extent practicable. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a garbage processing machine that decomposes garbage introduced into a treatment tank by the activity of microorganisms that live in the treated water inside the treatment tank.

  In recent years, various garbage processing machines have been proposed for the purpose of reducing garbage generated in kitchens of general households and restaurants. As one of this kind of garbage processing machines, microorganisms that inhabit the treated water by introducing the garbage into the treatment tank storing an appropriate amount of treated water and stirring with the treated water by the operation of the stirring means There are wet-type garbage processing machines configured to decompose by the activity of (food fermenting bacteria, yeast, etc.) (see, for example, Patent Documents 1 and 2).

In addition, it is known that the treatment capacity can be improved by, for example, densely floating a bio-base material configured as a porous foam in the treated water inside the treatment tank. This bio-base material acts to secure the habitat of the microorganisms and to increase the chance of contact with the microorganisms by retaining the garbage introduced into the treatment tank.
Japanese Patent Laid-Open No. 10-192829 JP 2002-336830 A

  In the wet type garbage disposal equipment as described above, it is important to increase the activity of microorganisms that inhabit the treated water in order to efficiently decompose the garbage in the treatment tank. Since microorganisms operate by consuming dissolved oxygen in the treated water, fresh water is regularly replenished inside the treatment tank so that oxygen (air) lost due to the activity of the microorganisms is supplied to the treated water. ing. However, in this configuration, there is a problem that a large amount of makeup water is required to supply a sufficient amount of oxygen for improving the activity of microorganisms.

  In addition, an air pump is provided outside the processing tank, and by the operation of this air pump, outside air is sucked into the processing tank and discharged into the processing water as bubbles from a discharge pipe disposed at the bottom of the processing tank, and oxygen (air) However, since the bubbles released in the treated water rise in the treated water in a short time, the supply efficiency of oxygen is low and a sufficient amount of oxygen is supplied. Therefore, it is necessary to continuously operate a large-capacity air pump, which increases the running cost.

  The present invention has been made in view of such circumstances, and by utilizing the fact that the amount of dissolved oxygen in water becomes large by cooling, and by preliminarily cooling the make-up water in the make-up water tank, a large amount of oxygen can be obtained. An object of the present invention is to provide a wet-type garbage disposal machine capable of enhancing the activity of microorganisms in treated water by replenishing a small amount of water containing water and stably maintaining a high treatment capacity.

  In addition, microbubbles that have low buoyancy and stay for a long time are generated in the makeup water in the makeup water tank, so that as much oxygen as possible is dissolved in the makeup water, and a large amount of oxygen is supplied with a small amount of makeup water. An object of the present invention is to provide a wet-type garbage disposal machine that can achieve both a reduction in water consumption and a high treatment capacity.

  Furthermore, replenishment water to the treatment tank is supplied while stirring the treatment water inside the treatment tank, and microbubbles are released during the period of the stirring operation, so that oxygen supplied together with the makeup water is treated with the treatment water. It is an object of the present invention to provide a garbage disposal machine that can effectively increase the dissolved oxygen content of makeup water and achieve a reduction in water consumption and high treatment capacity.

  The garbage processor according to the present invention periodically agitates the garbage introduced into the treatment tank together with the treated water stored in the treatment tank, and decomposes it by the activity of microorganisms that live in the treated water. The garbage disposal machine includes a makeup water tank that stores makeup water that is appropriately replenished into the treatment tank, and a cooler that cools the makeup water stored in the makeup water tank.

  In the present invention, the replenishing water appropriately replenished in the treatment tank is cooled by the cooler, the amount of dissolved oxygen is increased, and a sufficient amount of oxygen can be supplied into the treated water with a small amount of replenishing water.

  Moreover, the garbage processing machine which concerns on this invention is equipped with the microbubble generator which discharge | releases a microbubble in the makeup water stored in the said makeup water tank.

  In this invention, fine bubbles (microbubbles) released by the microbubble generator remain in the make-up water in the make-up water tank for a long time, and sufficient air (oxygen) is contained in the make-up water whose content of oxygen is increased by cooling. Is done.

  Furthermore, the garbage processing machine according to the present invention is configured to supply the makeup water from the makeup water tank to the treatment tank during the stirring operation of the garbage and the treated water, and to generate microbubbles by the microbubble generator. It is characterized by comprising a control means for causing the release of the gas during the period of the stirring operation.

  In this invention, the replenishment water in the treatment tank is replenished during the stirring operation of the garbage and the treatment water in the treatment tank, and the oxygen contained in the replenishment water is dispersed throughout the treatment water. In addition, a sufficient amount of oxygen is supplied to the microorganisms inhabiting the treatment tank, while microbubbles are released to make the supplemental water contain oxygen during the period of the stirring operation, and the cooled supplementary water is supplied. A large amount of oxygen is contained before replenishing the treatment tank.

  In the garbage processing machine according to the present invention, since the make-up water in the make-up water tank is cooled, the amount of dissolved oxygen in the make-up water becomes large, and a sufficient amount of oxygen is supplied by replenishing a small amount of water. It is possible to effectively increase the activity of microorganisms by supplying to the wastewater, and to stably realize a high garbage disposal capacity with a small amount of water consumption.

  In addition, the microbubbles released in the makeup water in the makeup water tank stay in the makeup water for a long time, so that as much oxygen as possible can be dissolved in the cooled makeup water, and a small amount of supplement is made. It is possible to increase the activity of microorganisms in the treated water with the amount of water and stably maintain a high treatment capacity.

  Furthermore, since the replenishment water to the treatment tank is replenished while the treatment water is being stirred inside the treatment tank, the oxygen supplied together with the replenishment water can be distributed throughout the treatment water, and the stirring operation can be performed. Since microbubbles are released in the makeup water during the cycle, the dissolved oxygen content in the makeup water can be effectively increased, and a reduction in water consumption and high treatment capacity can be realized efficiently. The invention has an excellent effect.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a longitudinal sectional view schematically showing the configuration of a garbage disposal apparatus according to the present invention. In the figure, reference numeral 1 denotes a processing tank, which is configured as a pot-shaped hollow container with a reduced diameter at the top. A treated water 2 having a predetermined depth is stored inside the treatment tank 1, and the treated water 2 is porous to provide a habitat for microorganisms to be introduced as described later. The bio-base materials 3, 3... Configured as foams are suspended.

  An overflow port 10 is opened at one place in the circumferential direction on the peripheral wall of the treatment tank 1, and the overflow port 10 is covered with a filter 11 using a mesh plate. A drainage chamber 12 is provided outside the processing tank 1 so as to face the opening position of the overflow port 10, and a drainage pipe 13 is connected to the drainage chamber 12.

  The overflow port 10 discharges the treated water 2 beyond the opening position thereof to the drainage chamber 12 and serves to keep the water level of the treated water 2 stored in the treatment tank 1 constant. The filter 11 covering the overflow port 10 acts to trap foreign matter contained in the treated water and clean the drainage into the drainage chamber 12. The drainage in the drainage chamber 12 is discharged into the sewage through the drainage pipe 13, and it is desirable to further clean it through a simple water treatment tank in the discharge process.

  One end of an introduction pipe 14 is connected to the peripheral wall of the processing tank 1 at a circumferential position different from the overflow port 10. The other end of the introduction pipe 14 is connected to a disposer (not shown), and raw garbage crushed by a known operation of the disposer is introduced into the treatment tank 1 through the introduction pipe 14 together with water for transport. It is configured to be. In addition, a garbage input port, which is covered with a cover plate 15 so as to be freely opened and closed, is opened at the top of the processing tank 1, and it is also possible to receive the garbage directly input from the input port.

  On the bottom plate inside the processing tank 1, two agitation pumps 4 and 4 using submersible pumps are installed. These agitation pumps 4 and 4 draw in the treated water 2 inside the treatment tank 1 from a suction port (not shown) that opens to the lower surface separated from the bottom plate by an appropriate length, and in the treated water 2 from the respective discharge pipes 40 and 40 extending upward. It works to spit out.

  FIG. 2 is a transverse cross-sectional view taken along the line II-II in FIG. 1, and shows a planar arrangement of the agitation pumps 4 and 4 inside the processing tank 1. As shown in the figure, the agitation pumps 4 and 4 are distributed on both sides of the center of the processing tank 1, and the tips of the discharge pipes 40 and 40 are bent in the same circumferential direction of the processing tank 1. is there. Therefore, when the agitation pumps 4 and 4 are driven, water flows are generated in the treated water 2 by the action of the discharged water from the tips of the respective discharge pipes 40 and 40, and these water flows collide with the inner surface of the treatment tank 1. And flow in the circumferential direction. As a result, a stirring flow rotating in the clockwise direction indicated by the white arrow in FIG. 2 is generated inside the processing tank 1, and the garbage introduced into the processing tank 1 as described above is treated. It is stirred by the action of the stirring flow together with the treated water 2 stored in the tank 1 and the bio-base materials 3, 3... Floating on the water surface of the treated water 2.

  Further, the garbage processing machine according to the present invention includes a makeup water tank 5 installed on the top plate of the processing tank 1. The replenishing water tank 5 is connected to a water pipe (not shown) via a known ball tap 50, and the replenishing water 51 supplied from the water pipe is substantially omitted by the operation of the ball tap 50. The water level is maintained at a certain level. Further, the makeup water tank 5 is connected to the inside of the treatment tank 1 through a water supply pipe 53 provided with an electric valve 52 in the middle, and the makeup water 51 stored in the makeup water tank 5 is, for example, periodically When the motor-operated valve 52 is opened, the water is supplied to the inside of the treatment tank 1 through the water supply pipe 53.

  A microbubble generator 6 is arranged inside the makeup water tank 5 configured as described above. The microbubble generator 6 includes a small-capacity pump having a suction port and a discharge port inside the makeup water tank 5, and an intake pipe 60 communicating with the outside of the makeup water tank 5 is connected to the suction side of the pump. Thus, when the built-in pump is driven, the makeup water 51 stored in the makeup water tank 5 is sucked and discharged into the makeup water tank 5.

  By this operation, outside air is sucked into the intake pipe 60 by the action of negative pressure generated on the suction side of the pump, and the air mass generated inside by this suction is finely crushed by rotational shearing, and it is 10 to several hundred μm. Fine bubbles (microbubbles 61) having a diameter are generated and discharged into the makeup water tank 5 together with the discharged water. The microbubbles 61 released in this way have a small bubble size and small buoyancy, so that they can remain in the gas for a long period of time.

  A cooler 7 is attached outside the makeup water tank 5. The cooler 7 is, for example, a sheet-like heat exchanger wound around the lower wall of the make-up water tank 5 and heats between the make-up water 51 inside and the outside air through the wall. The replacement is performed to cool the makeup water 51. It is known that the amount of dissolved oxygen in the water increases as the temperature decreases, and the makeup water 51 cooled by the operation of the cooler 7 is subjected to aeration by an appropriate means, and a large amount of oxygen is obtained. Can be included.

  In the garbage processing machine according to the present invention, the microbubble generator 6 disposed inside the makeup water tank 5 serves as an aeration means for the makeup water 51. Since the microbubbles 61 generated by the microbubble generator 6 stay in the make-up water 51 for a long time as described above, the make-up water tank is released by discharging the microbubbles 61 into the make-up water 51 cooled by the cooler 7. 5 A large amount of air (oxygen) can be efficiently dissolved in the makeup water 51 inside.

  Further, the garbage processing machine according to the present invention includes a bio tank 8 arranged in parallel with the makeup water tank 5. The bio tank 8 is connected to the inside of the processing tank 1 by a supply pipe 81 provided with a bio pump 80 in the middle. Inside the bio tank 8, a bio liquid containing a large number of microorganisms capable of decomposing organic substances, such as food fermenting bacteria and yeasts, is stored. It is supplied into the processing tank 1 through the supply pipe 81 by the operation of the pump 80.

  In the garbage processing machine configured as described above, the treated water 2 having a predetermined water level is stored in the treatment tank 1 in advance, and an appropriate amount of the bio-substrate 3, 3,. used. When an operation switch (not shown) is turned on in this state, a fixed amount of bio-liquid is introduced from the bio tank 8, and the agitation pumps 4, 4 are driven to agitate the treated water 2 and the bio base materials 3, 3,. The operation preparation is completed.

  As a result of the operation preparation operation, microorganisms contained in the bio-liquid are introduced into the treatment tank 1 and are stirred together with the treated water 2 and the bio-substrates 3, 3. The bio-base materials 3, 3... Using the porous foam are inhabited in an evenly dispersed state. It is to be noted that the agitation of the treated water 2 and the bio-base materials 3, 3... By the operation of the agitation pumps 4 and 4 is performed at predetermined intervals even during the following treatment operation.

  Thereafter, when the garbage is introduced through the introduction pipe 14, the garbage processing machine starts the processing operation, and the treated water 2 and the bio-base materials 3, 3,. Is done. By this operation, the garbage thrown in from the introduction pipe 14 is also agitated and mixed evenly with the bio-base materials 3, 3... Covering the surface of the treated water 2, and inhabits these bio-base materials 3, 3.. Due to the activity of microorganisms, it is decomposed into water and carbon dioxide and disappears.

  During such a treatment operation, the motorized valve 52 in the middle of the water supply pipe 53 is also periodically opened, and the makeup water 51 in the makeup water tank 5 is replenished into the treatment tank 1 through the water supply pipe 53 as described above. As a result, oxygen consumed by the activity of the microorganisms is periodically supplied into the treated water 2 together with the makeup water 51, and the activity of the microorganisms is well maintained over a long period of time, and the garbage is decomposed. Processing capacity can be kept high.

  Here, the replenishment water 51 inside the replenishment water tank 5 is a water in which a large amount of air (oxygen) is dissolved by the cooling by the cooler 7 and the discharge of the microbubbles 61 from the microbubble generator 6 as described above. More specifically, a large amount of oxygen can be supplied to the treated water 2 by supplying a small amount of water to microorganisms inhabiting the treated water 2 while maintaining a high ability to decompose garbage. A significant reduction in water consumption can be achieved.

  The replenishment of the replenishing water 51 as described above is preferably performed in accordance with the operation of the agitation pumps 4 and 4 periodically performed during the processing operation. As a result, oxygen dissolved in the replenishing water 51 is stirred together with the treated water 2 and the bio-base materials 3, 3... Immediately after the supply, and is effectively dispersed in the treated water 2 so that each bio-base material 3, 3. It will be supplied to the microorganisms that live inside, and the activity of the microorganisms can be enhanced throughout the entire interior of the treatment tank 1, and the ability to decompose garbage can be maintained high.

  In addition, the microbubbles 61 may be released continuously by the microbubble generator 6, but during a period of the stirring operation in the treatment tank 1, that is, at an appropriate time before the makeup water 51 is replenished. It is preferable to carry out over this. Thereby, the increase in running cost by the unnecessary operation | movement of the microbubble generator 6 can be suppressed, keeping the amount of dissolved oxygen of the makeup water 51 at a high level.

  Such replenishment of the replenishing water 51 and the discharge of the microbubbles 61 can be easily performed by related control of the agitation pumps 4, 4, the motor operated valve 52 and the microbubble generator 6.

  During the above treatment operation, the level of the treated water 2 in the treatment tank 1 is generated by water introduced through the introduction pipe 14 together with garbage, makeup water 51 supplemented from the makeup water tank 5, and decomposition of garbage. The rise is caused by the influence of the water to be discharged, but as described above, the rise is discharged to the drainage chamber 12 through the overflow port 10 and discharged into the sewage through the drainage pipe 13. The introduction of the bio liquid from the bio tank 8 is periodically performed to replenish the microorganisms released together with such waste water. For example, the introduction may be performed with a long period of about 6 hours.

It is a longitudinal section showing the composition of the garbage processing machine concerning the present invention roughly. It is a cross-sectional view by the II-II line of FIG.

Explanation of symbols

1 treatment tank 2 treated water 4 stirring pump 5 makeup water tank 6 micro bubble generator 7 cooler
51 makeup water
61 micro bubble

Claims (3)

In the garbage processing machine, the garbage introduced into the treatment tank is periodically agitated with the treated water stored in the treatment tank, and decomposed by the activity of microorganisms living in the treated water.
A replenishing water tank for storing replenishing water appropriately replenished into the treatment tank;
And a cooler for cooling the makeup water stored in the makeup water tank.   The garbage processing machine of Claim 1 provided with the microbubble generator which discharge | releases a microbubble in the makeup water stored in the said makeup water tank.   The replenishment water from the replenishing water tank to the treatment tank is replenished during the stirring operation of the garbage and the treated water, and the discharge of microbubbles by the microbubble generator is performed during the period of the stirring operation. The garbage processing machine of Claim 2 provided with the control means to perform.

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