JPH10314707A - Garbage treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage treatment device in which treatment is enabled in the sink of a kitchen where garbage or the like is generated, and maintenance and settlement after treatment are eliminated and biochemical oxygen demand(BOD) of garbage and drainage in the kitchen is reduced and drainage is enabled to directly flow into a drain pipe. SOLUTION: To increase decomposition capacity and decomposition velocity of organic substance, aerobic microorganism decomposition is necessary to perform miniaturization and high performance. It is necessary that microorganisms are brought into contact with organic substance (a nutrient source) and oxygen at as plenty time as possible. Drainage in a water tank 12 is sprayed from a water spray nozzle 20 in a regulation tank 10 through a circulation pump 18. Contact time of microorganisms coming into contact with oxygen and the organic substance is made long by uniformly supplying drainage in the water tank 12 to the inside of a decomposition tank 11. Thereby, decomposition performance is increased and further durability of the circulation pump 18 is enhanced by intermittently operating the circulation pump 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal apparatus capable of decomposing organic substances (such as garbage and cooking effluent) generated mainly in a kitchen at home with microorganisms and flowing the garbage through a sewer pipe. .

[0002]

2. Description of the Related Art In a conventional garbage processing apparatus, a garbage generated in a sink is provided with a device for drying and reducing the weight, a device for incineration, a device for decomposing by microorganisms, and a crushing means. It is considered that the garbage is pulverized and flown into a sewer system, and that the garbage is pulverized by a pulverizing means, and then the pulverized garbage is stored in a decomposition tank in which microorganisms live, and the organic matter is decomposed by the microorganism.

In particular, in the case of crushing garbage in a sink, the garbage can be processed in a kitchen sink where garbage is generated.
Furthermore, it is convenient without any waste after maintenance and treatment, but since the crushed garbage is poured into the sewer as it is,
Biochemical oxygen demand (BOD) of garbage and kitchen wastewater increases. In order to reduce this BOD, after the garbage is crushed by the crushing means, the crushed garbage is not directly poured into the sewer, but is poured into a decomposition tank provided with a filter medium to which microorganisms are attached, and the garbage and kitchen drainage are discharged. A garbage disposal apparatus that decomposes organic matter with microorganisms in a decomposition tank has been considered.

[0004]

However, in such an apparatus, it is required to increase the decomposing ability and the decomposing rate of organic substances and to increase the size and performance of the apparatus. For that purpose, it is necessary to perform aerobic microbial decomposition in which organic substances are decomposed by aerobic microorganisms. However, in the aerobic microbial decomposition, oxygen (air) is always required for the decomposition, and in order to make the entire treatment tank including the decomposition tank smaller to store it under the sink,
It is necessary to repeatedly pass organic matter between filter media in the decomposition tank many times. Therefore, it is necessary to return a part of the drainage from the water tank that stores the water from the decomposition tank to the adjustment tank with a circulation pump, and contact the organic matter (nutrient source) with oxygen and microorganisms for as long as possible. However, the conventional one was insufficient and there was a problem in the decomposition performance.

[0005] The present invention provides a garbage disposal apparatus in which the contact time between an organic substance, oxygen, and microorganisms is long and the decomposition performance is improved.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pump device for sending drainage in a water tank to an adjusting tank, a control means for intermittently operating the pump device, and a flow of circulating treated water. Is configured to intermittently flow between the filter media in the decomposition tank to prevent the microorganisms attached to the filter media and the oxygen in the air from being constantly covered with the liquid to prevent a sufficient supply. Further, the operation time of the pump can be shortened, and the durability thereof can be improved.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention comprises an adjusting tank for temporarily storing organic matter such as garbage crushed by crushing means, and a filter medium for immobilizing microorganisms. And a decomposition tank for decomposing organic substances by microorganisms, a water tank for storing water passing through these tanks, and a water tank connected to a sewer pipe, and a pump device for sending drainage in the water tank to the adjustment tank, and a pump. In this configuration, the apparatus is operated intermittently. According to this configuration, the flow of circulating treated water can be intermittently flown between the filter media in the decomposition tank, and the microorganisms adhering to the filter media and the oxygen in the air are always covered by the liquid. To prevent the supply from becoming insufficient. Further, the operation time of the pump can be shortened, and the durability thereof can be improved.

The invention according to claim 2 of the present invention comprises a crushing means provided in a sink, an adjusting tank for temporarily storing organic matter such as garbage crushed by the crushing means, and a filter medium on which microorganisms are implanted. Filling, a decomposition tank for decomposing organic matter by microorganisms, a water tank for storing water passing through these tanks, and a water tank connected to a sewer pipe, stirring means for rotating and stirring the organic matter in the adjustment tank, and drainage in the water tank A pump device for feeding water to the adjusting tank, and a watering nozzle into the adjusting tank, wherein the watering nozzle is rotated in conjunction with the stirring means. According to this configuration, the watering nozzle is adjusted. Since it rotates in conjunction with the stirring means in the tank, the wastewater is evenly dispersed throughout the decomposition tank, organic matter (nutrient source) can be supplied to the microorganisms in the entire decomposition tank, and the decomposition ability can be improved. Is

Further, the invention according to claim 3 of the present invention has a structure in which the upper part of the watering nozzle in claim 2 is in an open state. According to this structure, even if the watering hole of the watering nozzle is clogged. The water overflows from the opening and can supply the treated water to the adjustment tank and the decomposition tank.

According to a fourth aspect of the present invention, an aspirator is provided in a path between the water tank according to any one of the first to third aspects and a pump device for sending drainage in the water tank to the adjusting tank. According to this, air can be mixed into the wastewater by the flow rate of the wastewater flowing through the path by the function of the aspirator, the amount of dissolved oxygen in the wastewater can be increased, and the ability to decompose by microorganisms can be increased.

In the invention according to claim 5 of the present invention, the path between the water tank and the pump device for sending drainage in the water tank to the adjustment tank is branched and connected to the water tank. According to this configuration, a part of the drainage returned to the adjustment tank by the branched path is returned to the water tank, and the inside of the water tank is stirred by the jetting power of the water so that fine solid organic matter is not precipitated. The fine organic matter is passed through a regulating tank and a decomposition tank many times by a pump device to accelerate the decomposition.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG.
In FIG. 1, reference numeral 1 denotes a sink, and a drain means 3 of a sink 2 has a crushing means 4 for crushing garbage to be put into the drain port 3.
Is provided. The crushing means 4 and the garbage processing unit 5 are connected by a pipe 7 having a switching valve 6. The garbage processing section 5 has a substantially cylindrical shape, and the adjustment tank 1 is
0, decomposition tank 11 and water tank 12. And
The partition plate 8 is formed of a mesh-shaped wire net, and the partition plate 9 is
It consists of a disk with holes.

A stirring shaft 13 penetrates through the center of the adjusting tank 10 and the decomposition tank 11, and several stirring rods 14 are provided substantially perpendicular to the shaft 13, and are rotated by a driving motor 15. I have. Further, the stirring shaft 13 is divided into a shaft portion 13a for stirring the adjusting tank 10 and a shaft portion 13b for stirring the decomposition tank 11, and a one-way clutch 13c
There is.

The decomposition tank 11 is filled with a filter medium 16 for allowing microorganisms to land on the floor. The bottom part 17 of the water tank 12 is connected to the suction side of the circulation pump 18, and the discharge side of the circulation pump 18 is connected via a switching valve 19 to a watering nozzle part 20 provided on the top surface 10 a of the adjustment tank 10 via a pipe 21. I have.

An aspirator 22 is provided on the pipe 21.
And a branch route 23 leading to the water tank 12. In addition, an intake port 24 is provided on the top surface 10 a of the adjustment tank 10. The watering nozzle 20 is fixed to a stirring shaft 13a for stirring the adjusting tank 10, and is rotated by rotation of the stirring shaft 13a. Further, the switching valve 19 and the drain pipe 25 are connected by a pipe 26. In addition, 27 is an air pressure pump.
The suction side is located in a space 11a between the water tank 12 and the decomposition tank 11,
The discharge side is connected to the sewer pipe 25 by pipes 28 and 29, respectively.

FIG. 2 is a sectional view of the watering nozzle 20, in which a nozzle hole 20a is provided on the lower surface of the watering nozzle 20, and the upper part of the watering nozzle 20 is an open portion 20b.

The operation of the garbage processing apparatus configured as described above will be described. When the garbage generated in the kitchen is put into the crushing means 4 and the water is poured while the power is turned on and crushed, the switching valve 6 is switched, and the crushed garbage and water are processed through the pipe 7 for garbage disposal. It enters the adjustment tank 10 of the section 5.

The pulverized garbage is stirred and pulverized by a stirring rod 14, those larger than the opening of the wire mesh of the partition plate 8 remain on the adjusting tank 10, and other fine solids and liquid components are gradually removed from the decomposition tank. Enter 11 In the decomposition tank 11, the organic matter is aerobically decomposed by microorganisms that have landed on the filter medium 16. The decomposed water, the fine solids of the organic substances that cannot be completely decomposed, and the dissolved liquid are temporarily stored in the water tank 12 and returned to the adjustment tank 10 by intermittent operation of the circulation pump 18.

When the water is returned to the adjusting tank 10, the water is sprinkled while being rotated by a watering nozzle 20 arranged above the adjusting tank 10. Therefore, the wastewater from the watering nozzle 10 is supplied to the decomposition tank 11
It flows intermittently and evenly through the inside. Then, as the same is repeated, most of the organic matter in the garbage is decomposed by microorganisms, and the BOD concentration is reduced.

When the water level in the water tank 12 becomes high to some extent, the switching valve 19 switches to the drain pipe 25 side, and the circulating pump 1
8 discharges a predetermined amount, and flows out to the sewer 25 through the pipe 26. In addition, the outside air is sucked from the inlet port 24 of the adjusting tank 10 by the pressure feed pump 27, and passes through the partition plate 9 together with the carbon dioxide generated while passing between the partition plate 8 and the filter medium 16 of the decomposition tank 11. And is sent to the sewer pipe 25.

Further, the operation of the circulation pump 18 causes the drainage of the water tank 12 to flow through the aspirator section 22, and the outside air is sucked by the pressure to be mixed with the drainage (treated water). At the same time, the drainage (treated water) is injected into the water tank 12 through the branch path 23, and the drainage in the water tank is stirred by the force. Therefore, the fine solids settled at the bottom of the water tank 12 are stirred by the jetting force, and the waste water containing the fine solids is sent to the water spray nozzle 20 by the circulation pump 18, and the microorganisms are decomposed again by the decomposition tank 11. Can be performed.

[0022]

According to the first aspect of the present invention, since the pump device is operated intermittently, the flow of the circulating wastewater is intermittently caused to flow between the filter media in the decomposition tank, thereby adhering to the filter media. Drainage flows so as to cover the periphery of the microorganisms, and prevents the air from being constantly covered with the liquid and insufficient supply of oxygen in the air. In other words, when the pump is at rest, the water film becomes thinner,
Microorganisms can efficiently take in oxygen and increase the ability to decompose organic matter. Further, there is an effect that the operation time of the pump can be shortened and the durability of the pump can be improved.

Further, according to the invention of claim 2 of the present invention, the sprinkling nozzle for spraying the drainage in the adjustment tank rotates in conjunction with the stirring means of the adjustment tank, so that the wastewater is supplied to the adjustment tank and the decomposition tank. Since it is possible to uniformly disperse the microorganisms in the entirety and to supply organic substances (nutrient sources) evenly to all the microorganisms in the decomposition tank, there is an effect that the decomposition ability can be improved.

In the invention according to claim 3 of the present invention, since the upper part of the watering nozzle is in an open state, even if the watering hole of the watering nozzle is clogged, it overflows from the upper opening, so that the drainage does not circulate. There is no effect, and there is an effect that performance can be maintained for a long time.

In the invention according to claim 4 of the present invention, by providing an aspirator in the circulation path, it is possible to mix outside air into the wastewater by the flow velocity of the wastewater flowing through the path.
Since the dissolved oxygen in the wastewater consumed in the decomposition tank can be increased again, there is an effect that the ability to decompose by microorganisms is enhanced and maintained.

According to a fifth aspect of the present invention, a part of the drainage water returned to the regulating tank is returned to the water tank, and the inside of the water tank is agitated by the jetting power of the water so that fine solid organic matter is not precipitated. In addition, the adjustment tank and the decomposition tank are circulated many times by the pump device to promote the decomposition, and there is an effect that the decomposition ability of the organic matter as a whole is enhanced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a garbage processing apparatus according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of a watering nozzle of the same garbage disposal device.

[Explanation of symbols]

 2 Sink 4 Crushing means 10 Adjusting tank 11 Decomposition tank 12 Water tank 13 Stirring shaft (Stirring means) 14 Stirring rod (Stirring means) 16 Filter medium 18 Circulation pump (Pump device) 20 Watering nozzle 20b Opening part 22 Aspirator

Claims (5)

[Claims] A crushing means provided in a sink, an adjustment tank for temporarily storing organic matter such as garbage crushed by the crushing means, and a filter for filling microorganisms with a filter medium for immobilizing microorganisms, and decomposing the organic matter by the microorganisms. A garbage tank comprising a tank, a water tank for storing water passing through these tanks and connected to a sewer pipe, and a pump device for sending drainage in the water tank to the adjustment tank, and control means for intermittently operating the pump device Processing equipment. 2. A crushing means provided in a sink, an adjusting tank for temporarily storing organic matter such as garbage crushed by the crushing means, and a filter for filling microorganisms with a filter medium for implanting microorganisms, and a decomposition for decomposing the organic matter by the microorganisms. A tank, for storing water passing through these tanks, a water tank connected to a sewer pipe, a stirring means for stirring the organic matter in the adjustment tank by rotation, a pump device for sending drainage in the water tank to the adjustment tank, A garbage disposal apparatus having a water spray nozzle into a tank, wherein the water spray nozzle is configured to rotate in conjunction with stirring means. 3. The watering nozzle is rotatable, and
3. The garbage disposal device according to claim 2, wherein the upper part of the nozzle is open. 4. An aspirator is provided in a path between a water tank and a pump device for sending drainage in the water tank to an adjustment tank.
4. The garbage disposal device according to any one of the above items 3. 5. The method according to claim 1, wherein a path between the water tank and a pump device for sending drainage from the water tank to the adjustment tank is branched, and a path connected to the water tank is provided. Waste treatment equipment.