JP2951905B2 - Disposal device that eliminates organic matter contained in liquid with bacteria - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposal apparatus for decomposing organic substances contained in a liquid, such as manure and waste liquid discharged from a food processing factory, with bacteria to eliminate the same.

[0002]

2. Description of the Related Art Waste liquids containing an enormous amount of organic matter are generated in food processing factories and the like. Furthermore, the amount of manure that cannot be dumped at sea is also extremely large. Liquids containing organic matter such as manure can be incinerated and discarded. However, since the moisture content is extremely high, large heat energy is required for incineration. This is because large amounts of energy are required to evaporate water. A method of decomposing organic substances into gases such as carbon dioxide, moisture, and ammonia by the action of bacteria instead of incineration does not have this adverse effect, and can minimize the energy consumed for disposal.

[0003] A treatment method for eliminating organic substances contained in a liquid by using bacteria is performed in a factory where organic substances are generated.
Alternatively, it can be installed in each household at a municipal waste disposal site and further downsized. If there is a device at the place where the organic matter is treated with bacteria to eliminate it, there is no need to transport the organic waste to a treatment plant. Therefore, it is possible to realize an extremely efficient and low-cost ideal disposal that does not require disposal of a large amount of residues such as ash. Therefore, there is an extremely excellent feature that enormous cost for disposing of organic waste can be saved and sanitary treatment can be performed.

[0004] Disposal devices for eliminating organic substances contained in liquids by the action of bacteria have already been developed. For example, in a conventional disposal device, an uneven partition wall in which bacteria live is provided in a casing, and air is injected into the liquid to decompose organic substances contained in the liquid. Bacteria decompose organic substances into vapors such as water vapor, carbon dioxide, ammonia, and methane, and disappear. As the organic matter is broken down into gases, the treated liquid becomes clean and transparent.

[0005] However, it is difficult for the disposal apparatus having this structure to efficiently decompose organic substances contained in the liquid in a short time. This is because it is difficult for a large amount of bacteria to inhabit the irregularities provided on the partition walls. In order to more efficiently decompose organic substances contained in a liquid, it is important to increase the amount of bacteria that decompose the organic substances. In order to increase the inhabited area of bacteria due to the unevenness of the partition walls, it is necessary to arrange a large number of partition walls close to each other with a narrow gap. However, when the gap between the partition walls is narrowed, it becomes difficult to pass a liquid containing a solid organic substance, such as manure, without clogging, and the organic waste cannot be uniformly stirred. For this reason, the disposal apparatus of this structure has a drawback that it is difficult to efficiently decompose the whole organic substance in a short time by increasing the area where bacteria are inhabited and uniformly stirring the organic waste entirely.

[0006] The present inventor has sought to solve this problem.
We have developed a waste disposal device as shown in the vertical vertical sectional view of FIG. 1 and the vertical horizontal sectional view of FIG. The apparatus shown in these figures comprises a casing 1 for supplying a microorganism carrier and organic waste such as manure,
A stirring blade 2 for stirring the microorganism carrier, manure and the like contained in the casing 1, a deceleration motor 4 for rotating the stirring blade 2, a pressurized tank 5 for supplying pressurized air into the casing 1, and a pressurized tank 5 A heater 6 for heating the air supplied to the casing 1, a temperature control circuit 7 for detecting the temperature of the air supplied to the casing 1 and controlling the heater 6, a pressurized air source 8 for supplying air to the pressurized tank 5, Is provided.

[0007] The casing 1 has a horizontally elongated shape having a lower half along a cylinder, and a supply port 1A for supplying manure and the like is opened at an upper part. Inside the casing 1, a rotating stirring blade 2 is horizontally disposed. The stirring blades 2 have a spiral shape with a pitch opposite to each other so that they can rotate and move the microorganism carrier and the excrement and the like to the left and right to stir. Further, the stirring blade 2 is rotated close to the bottom surface of the casing 1 to stir the microorganism carrier and the manure supplied into the casing 1 as a whole.

[0008]

The disposal apparatus shown in FIGS. 1 and 2 allows a large amount of microorganisms to inhabit bacteria, so that the area where microorganisms can inhabit can be greatly increased. Therefore, there is a feature that a large amount of supplied organic waste can be almost completely decomposed in several tens of hours. However, when organic waste containing a large amount of liquid, such as manure, is decomposed by this type of disposal device, it is necessary to further vaporize and dissipate the decomposed liquid of the organic substance. The disadvantage is that it takes a considerable amount of time.

[0009] Furthermore, the disposal device of this structure has a disadvantage that the life of the microorganism carrier is shortened. This is because the microorganism carriers are forcibly transferred in the horizontal direction and agitated, so that they are rubbed against each other and worn or crushed. In particular,
As the microbial carrier, a porous material having fine voids is used in order to inhabit the bacteria, and it is difficult to obtain sufficient strength. Porous microbial carriers include those obtained by bonding inorganic materials to porous material, wood chips and wood chips cut from wood so that voids are formed as much as possible, chemical fibers and natural wood fibers molded into a predetermined shape, Those obtained by foaming plastic are used alone or in combination of two or more. These microbial carriers have reduced strength as compared to non-porous granules. Furthermore, the higher the porosity of the microbial carrier particles, the greater the number of voids in which bacteria can inhabit, so that those having excellent physical properties as microbial carriers have reduced strength.

[0010] The microbial carrier, which is difficult to obtain sufficient strength, drops off from the surface and becomes smaller after being used for a certain period of time, and reduces the habitat of bacteria. When the microbial carrier is worn down from the surface and becomes small, the space where the bacteria live is reduced, and the performance as the microbial carrier is reduced. For this reason, it is necessary to replace the microbial carrier that has become worn and small with a new one. The longer the usable life of the microorganism carrier, the lower the running cost and the more convenient it can be used. In particular, a device that decomposes and eliminates organic waste by the action of bacteria is an important feature that minimizes the total amount of waste. If it is necessary, the greatest features will not be used effectively. For this reason, it is extremely important for a device of this type that the period during which the microorganism carrier can be used, in other words, the life of the microorganism carrier can be extended. In addition, it is extremely important that a microbial carrier having many fine voids and having insufficient strength can be used effectively for a long time.

The present invention has been developed with the object of realizing this fact. An important object of the present invention is to efficiently decompose and eliminate organic substances contained in a liquid in a short time and to immobilize microorganism carriers. It is an object of the present invention to provide a disposal apparatus in which a microorganism carrier and an organic waste are brought into contact with each other in an ideal state so that an organic substance contained in a liquid is eliminated by bacteria so that no excessive force acts.

[0012]

According to a first aspect of the present invention, there is provided a disposal apparatus for removing organic substances contained in a liquid with bacteria, comprising the steps of : treating an organic waste by a primary treatment apparatus 54;
To the main unit. The primary processing unit and the disposal unit are
It has the following configuration. The disposal device main body includes a casing 41 in which a liquid containing an organic substance is stored, a microbial carrier that is put in the liquid of the casing 41 and inhabits the bacteria, and supplies air into the casing 41 to inhabit the microbial carrier. And an air supply device 42 for replenishing bacteria with oxygen. The air supply device 42 supplies air into the casing 41, and eliminates organic substances contained in the liquid by the action of bacteria living on the microorganism carrier.

[0013] Further, the main body of the disposal device is provided with a microorganism carrier,
A microbial carrier particle B having a specific gravity settling in the liquid supplied to the casing 41 and having a porous shape and having fine voids for inoculating bacteria is used.

The microorganism carrier particles B are not supplied to the casing 41 in an amount larger than the liquid level. Microbial carrier particles B are
A diffusion region 53 is provided between the upper surface level of the microbial carrier particles B and the liquid level, which is filled so as to settle below the liquid level, and uniformly diffuses the supplied liquid. The diffusion region 53 diffuses the supplied liquid, and the liquid containing the diffused organic substances moves downward through the myriad of microbial carrier particles B, and moves downward through the discharge port 45A provided on the bottom surface of the casing 41. Is discharged.

Further, an air injection pipe 51 for injecting air into the casing 41 is provided at the bottom of the casing 41 so that the injected air replenishes the bacteria living in the microorganism carrier particles B with oxygen. The air injected from the air injection pipe 51 floats in the liquid in the casing 41 to replenish oxygen to the bacteria inhabiting the microbial carrier particles B, and locally agitates the liquid to uniformly remove organic substances from the bacteria. Contact.

The primary treatment device 54 includes a casing 1 for accommodating microbial carrier particles B for inoculating bacteria, a stirrer 10 for mechanically agitating the microbial carrier particles B supplied to the casing 1 and organic waste. Supplying air to the mixture of the microorganism carrier particles B and the organic waste,
Air supply device 11 to supply oxygen to bacteria living in
And Stirring is performed by the stirrer 10 while supplying air with the air supply tool 11, and the organic waste is decomposed and eliminated by bacteria living in the microorganism carrier particles B. A stirrer 10 is disposed in the casing 1 so as to extend vertically. Stirrer 1
Numeral 0 includes a screw shaft 3 to which the screw fin 19 is fixed, and a vertical cylinder 20 arranged on the outer periphery of the screw shaft 3. The screw shaft 3 rotating inside the vertical cylinder 20 raises the microbial carrier particles B along the vertical cylinder 20 and lowers the microorganism carrier particles B outside the vertical cylinder 20 to form the casing 1.
Stir in convection inside. Furthermore, the primary processing device 54
The air supply device 11 extends vertically in the vertical cylinder 20.
And an air injection pipe 22 disposed vertically,
The firing tube 22 is an injection port 22 for injecting air into the casing 1.
A is opened, and from the injection port 22A of the air injection pipe 22
The air injected into the casing 1 is applied to the microorganism carrier particles B.
Provides oxygen to inhabiting bacteria.

Further, in the disposal device according to the second aspect of the present invention, a discharge port 45A is opened below the air injection pipe 51 at the bottom of the casing 41. Further, the discharge port 45A discharges the processed liquid to the outside of the casing 41 via the overflow pipe 46.

Further, according to a third aspect of the present invention, there is provided a disposal apparatus , wherein the liquid treated by the primary treatment apparatus is treated by a secondary treatment apparatus 55 having the following structure and supplied to the disposal apparatus main body. Is eliminated with bacteria.

(A) The secondary processing device 55 includes a casing 23 for storing a liquid containing an organic substance,
A microorganism carrier particle B having a specific gravity, which is put into the liquid of No. 3 and stirred together with the liquid by air floating in the liquid;
3 is provided with an air supply device 24 that supplies air to the microorganism carrier 3 and replenishes bacteria living in the microorganism carrier particles B with oxygen. this
The secondary treatment device supplies air with the air supply device 24 to eliminate the organic substances contained in the liquid by the action of bacteria living in the microorganism carrier particles B.

Further, the secondary processing device 55 has the following configuration. (B) The air supply tool 24 includes an air injection pipe 34 provided at the bottom of the casing 23 and the pressurized air source 8 that supplies pressurized air to the air injection pipe 34. (C) In the casing 23, a rising duct 35 for raising the liquid by bubbles injected from the air injection pipe 34 is provided above the air injection pipe 34. (D) The ascending duct 35 has upper and lower ends at the casing 23.
The liquid in the casing 23 is sucked from the lower end and discharged from the upper end. (E) The air injected from the air injection pipe 34 into the casing 23 supplements the bacteria living in the microbial carrier particles B with oxygen, and the air further raises the liquid in the rising duct 35, thereby discharging the liquid. The casing 23 is configured to be stirred in a convection state. (F) An outlet 27 for the treated liquid is opened at the bottom of the casing 23, and the outlet 27 is closed with a porous material 28 through which the microorganism carrier particles B cannot pass.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. However, the following example is an example of a disposal apparatus for eliminating organic substances contained in a liquid with bacteria for embodying the technical idea of the present invention, and the present invention is a disposal apparatus for eliminating organic substances with bacteria. The equipment is not specified as:

Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”. However, the members described in the claims are not limited to the members of the embodiments.

The liquid contained in the liquid shown in FIGS.
Disposal equipment that eliminates organic matter contained by bacteriaBody
Contains a liquid containing organic matter and decomposes organic matter.
The casing 41 and the casing 41
Supply air to the microbial carrier particles B and the casing 41.
To supply oxygen to bacteria living in microbial carrier B
And an air supply device 42 that performs the operation.

As shown in FIGS. 4 and 5, the casing 41 has a box-like overall shape. However, although not shown, the bottom surface of the casing may be entirely curved to have a concave center, or may have an uneven surface. Further, a supply pipe 43 for supplying a liquid containing an organic substance is connected to an upper portion of the casing 41. The supply pipe 43 is connected to a pump 44 to supply a liquid containing organic matter. The liquid supplied from the supply pipe 43 is discharged from the discharge port 45A through the overflow pipe 46 after the organic matter is removed.

In order to discharge the treated liquid from which organic substances have been removed from the casing 41, the apparatus shown in the figure is provided with a liquid outlet 45A at the bottom of the casing 41, and this outlet 45A is connected to an overflow pipe 46A. It is connected to. In order to provide a discharge port 45 </ b> A on the bottom surface of the casing 41, two rows of discharge pipes 45 are provided horizontally on the bottom surface of the casing 41. The discharge pipe 45 is provided at the bottom. If the casing is large, the discharge pipes are not shown, but are arranged in three to five rows. Further, the discharge pipe 45
Has a large number of discharge ports 45A opened therethrough. The outer periphery of the discharge pipe 45 is covered with a porous material 47 through which the microorganism carrier particles B cannot pass, so that the microorganism carrier particles B do not flow into the discharge port 45A. The two discharge pipes 45 are connected to the overflow pipe 46, and the processed liquid flowing into the discharge pipe 45 from the discharge port 45A overflows from the overflow pipe 46 and is drained.

As the porous material 47, a wire mesh that does not allow the microbial carrier particles B to pass through is used. However, as the porous material, a plastic foam or a nonwoven fabric can be used instead of the wire mesh.

The overflow pipe 46 connects a cheese 48 near the liquid surface of the casing 41. Cheese 4
The drainage channel 49 branched at 8 is guided to the outside of the casing 41 to discharge the treated liquid. The other branch channel 50 extends vertically upward and extends above the liquid level. When the liquid is supplied from the supply pipe 43 and the liquid level in the casing 41 increases, the discharge pipe 45 and the overflow pipe 46 having this structure overflow and discharge the processed liquid. In particular, this structure is provided with a discharge port 45A provided on the bottom surface of the casing 41.
Can uniformly discharge the treated liquid.

An air supply device 42 for injecting air into the casing 41 includes an air injection pipe 51 provided at the bottom of the casing 41, a pressurized air source 8 for supplying compressed air to the air injection pipe 51, An air supply pipe 52 that supplies air discharged from the pressurized air source 8 to the air injection pipe 51 is provided.
The air injection pipe 51 is, as shown in FIG.
Air holes 5 so that air can be evenly sprayed on the entire bottom surface of the
A plurality of pipes 51B opening 1A are connected in parallel in a lattice. The air injection pipe 51 is disposed horizontally above the discharge pipe 45.

The air injection pipe 51 injects the supplied pressurized air into the liquid from a number of air holes 51A. The air injected into the liquid becomes fine bubbles and floats in the gaps between the microorganism carrier particles B. The air injected into the liquid replenishes the bacteria living in the microorganism carrier particles B in the casing 41 with oxygen.

Further, the air injected into the liquid from the air injection pipe 51 replenishes the bacteria with oxygen while locally stirring the liquid, and controls the temperature of the liquid to control the microbial carrier particles in which the bacteria inhabit. Adjust the temperature of B to the temperature at which the bacteria are active. The optimal temperature for bacteria to grow comfortably and actively decompose organic matter is 38-50 ° C
It is. As the temperature drops below 38 ° C., bacterial activity decreases. When the temperature rises to 50 ° C. or higher, aerobic bacteria stop working actively and anaerobic bacteria propagate. When anaerobic bacteria grow, the odor of the exhaust gas becomes worse. When the temperature of the microorganism carrier particles is higher than 50 ° C., a large amount of outside air is injected into the liquid, and the temperature can be set to a comfortable temperature.

However, in the winter season, the temperature of the outside air is too low. Therefore, when the outside air is injected into the casing, the temperature of the microbial carrier particles is too low, and the organic matter may not be decomposed efficiently in a short time. This adverse effect can be achieved by heating the casing with a heater or heating the liquid with a heater so that the microorganism carrier particles can be heated to an appropriate temperature. However, the air injected from the air injection pipe 51 can be heated to an appropriate temperature. it can.

An air injection pipe 51 for injecting temperature-controlled air is connected to a pressurized tank 5 for storing temperature-controlled air. The pressurized tank 5 is connected to a pressurized air source 8 such as a blower or a compressor, and stores pressurized air heated to a set temperature. In the pressurized tank 5, for example, 0.1
Store air pressurized to ｋｇ10 kg / cm ² . A flow control valve 37 is connected between the pressurized tank 5 and the air injection pipe 51. The flow control valve 37 adjusts the opening to adjust the amount of air injected from the air injection pipe 51 and the injection pressure. When the flow control valve 37 is throttled, the amount of air to be injected decreases, and the injection pressure decreases. The amount of air injected is
1 is adjusted to an optimum value in consideration of the capacity.

The pressurized tank 5 has a heater 6 fixed outside for heating the air stored therein to a set temperature.
The outside of the heater 6 is insulated to prevent heat radiation. The heater 6 for heating the pressurized tank 5 is connected to a switch 38 and a power supply 39 in series. When the switch 38 is on, the heater 6 is energized to heat the pressurized tank 5. The switch 38 for controlling the energization of the heater 6 detects the temperature of the liquid or is controlled by the temperature control circuit 7 based on an input signal from a temperature sensor 40 for detecting the temperature on the discharge side of the flow control valve 37, 6. Adjust the air temperature of the pressurized tank 5. The set temperature of the air stored in the pressurized tank 5 is set to, for example, 38 to 38 degrees.
The temperature is set to 50 ° C, preferably 38 to 45 ° C.

When the outside air temperature around the casing 41 is set to 15 ° C. or higher, the temperature of the liquid containing an organic substance becomes slightly higher than the outside air temperature. In particular, when the microorganism carrier particles B actively decompose the organic substance, in other words, when the organic substance is supplied and two to three hours have passed, the temperature of the liquid becomes higher than the ambient temperature. This is because microorganisms actively decompose organic matter. The day after the addition of the organic matter, that is, after about 24 hours, the organic matter is almost completely decomposed and eliminated, and the temperature of the liquid decreases. The method of detecting the temperature of the microorganism carrier particles B and controlling the air temperature of the pressurized tank 5 is such that when the microorganism carrier particles B actively decompose organic substances, the air temperature of the pressurized tank 5 is set low, After the microorganism carrier particles B completely decompose the organic matter, the air temperature of the pressurized tank 5 is set high. This method uses the microbial carrier particles B
Has the feature that the temperature of the target can always be controlled to the ideal temperature.

The microorganism carrier particles B are contained in the liquid of the casing 41.
Is filled. The microbial carrier particles B have a specific gravity that sediments in the supplied liquid. Further, the microbial carrier particles B are formed into porous particles having fine voids for inoculating bacteria. For the microorganism carrier particles B, for example, a wood chip obtained by cutting wood such as cedar into small pieces so as to form voids as much as possible is used. The microbial carrier particles of wood chips float on water in a state that contains air in the voids,
When water penetrates into the voids, it sinks into the water. Instead of wood chips, the microbial carrier particles may be made of a material obtained by bonding inorganic materials in a porous manner, wood chips, chemical fibers, natural wood fibers, etc. formed into a predetermined shape, plastics obtained by foam molding, or the like. Or a mixture of a plurality of types, which settles in the liquid can also be used. In the porous microbial carrier particles B, bacteria live in countless fine voids. Bacteria that inhabit the microorganism carrier particles B are aerobic bacteria, anaerobic bacteria, facultative anaerobic bacteria, and the like. Further, an enzyme is preferably added to the microorganism carrier particles B in addition to the bacteria.

The filling amount of the microorganism carrier particles B is settled below the liquid level without blowing air, and the liquid supplied between the upper surface level and the liquid surface level of the microorganism carrier particles B is set. Is determined in such a manner that a diffusion region 53 for diffusing is formed. The diffusion region 53 diffuses the liquid containing an organic substance, and the liquid containing the organic substance diffused uniformly moves between the innumerable microbial carrier particles B as shown by arrows in the figure, and moves downward. It is discharged from a discharge port 45 </ b> A provided on the bottom surface of 41.

The disposal device main body shown in FIGS. 3 and 4 decomposes and eliminates organic matter contained in the liquid as described below. The liquid containing the microorganism carrier particles B and organic matter is put into the casing 41. The filling amount of the microorganism carrier particles B is set to an amount that settles below the liquid level and forms a diffusion region 53 for diffusing the supplied liquid between the upper surface level and the liquid surface level of the microorganism carrier particles B. . The microbial carrier particles B allow bacteria to inhabit innumerable fine voids. Air is injected from the air injection pipe 51 while the microorganism carrier particles B and the liquid are put in the casing 41. The air injected from the air injection pipe 51 supplies oxygen to the bacteria inhabiting the microorganism carrier particles B and locally agitates the liquid. Further, the air injected from the air injection pipe 51 heats the liquid to a set temperature. The temperature of the air injected from the air injection pipe 51 is about 38 to 50 ° C., preferably about 38 to 4 ° C.
The temperature is set to a temperature of 5 ° C. The flow rate and the injection pressure of the air injected into the liquid are adjusted by the flow rate adjusting valve 37. Air is continuously injected from the air injection pipe 51. However, the air injection tube can also inject air intermittently.

When a liquid containing an organic substance is supplied from the supply pipe 43, the supplied liquid is diffused in the diffusion region 53 formed between the upper surface level of the microorganism carrier particles B and the liquid level. The liquid containing organic matter uniformly diffused in the diffusion region 53 passes between the myriad of microbial carrier particles B, moves downward, and comes into contact with these microbial carrier particles B efficiently. In the liquid containing organic matter, the organic matter in the liquid is decomposed by bacteria living in the microorganism carrier particles B and disappears. The treated liquid passes through a discharge port 45A of a discharge pipe 45 provided on the bottom surface of the casing 41, and is discharged from the overflow pipe 46 to the outside of the casing 41. The liquid containing organic matter is supplied to the casing 41 continuously or intermittently. When a liquid containing organic matter is supplied, the treated liquid is discharged,
When the liquid containing the organic substance is continuously supplied, the treated liquid is also continuously discharged. When the liquid containing the organic substance is supplied intermittently, the treated liquid is also discharged intermittently.

Further, although not shown, the disposal apparatus of the present invention can also connect a plurality of disposal apparatus bodies in series to eliminate organic substances contained in the liquid. This apparatus, for example, treats the treated water discharged from the first disposal apparatus body ,
It is supplied to the second disposal device body . Treated water treated in the second discarding device main body is supplied to the third disposal apparatus.
Furthermore, the treated liquid, fourth, it was circulated to a plurality of disposal apparatus main body which is connected to the fifth ... in series, to eliminate organic matter contained in the liquid. As described above, the disposal device that connects a plurality of devices in series and eliminates organic matter contained in the liquid can efficiently treat a liquid having a high concentration of organic matter and reduce the organic matter concentration of the treated water finally discharged. There is a feature that can be extremely low. The number of connected disposal apparatus main bodies is determined to be an optimum number according to the organic matter concentration of the liquid to be processed, the amount of the supplied liquid, and the processing capacity of one apparatus.

Further, as shown in FIG. 6, the disposal apparatus of the present invention for removing organic substances contained in a liquid with bacteria is connected to a primary treatment apparatus 54 for decomposing and removing organic waste such as manure with bacteria. To use . This device is
The function of bacteria living in the microbial carrier particles B is to decompose and eliminate organic waste.

As shown in this figure, the primary treatment device 54 comprises a casing 1 for supplying the microorganism carrier particles B and the organic waste, and a microorganism carrier particle B supplied to the casing 1.
A stirrer 10 for stirring the organic waste and an organic waste, and an air supply device 11 for supplying air to the mixture of the microorganism carrier particles B and the organic waste and supplying oxygen to bacteria living in the microorganism carrier particles B. Prepare.

The casing 1 has an overall shape in which a cylinder is vertically set and a lower portion thereof is tapered.
An organic waste supply port 1A is opened at the upper end of the casing 1, and a discharge port 1B is opened at the lower part. Outlet 1
B opens a window in the casing 1 and surrounds the frame with a frame 12.
, And a door 14 is connected to the frame 12 via a hinge (not shown). Inside the door 14, a perforated plate 15, which is a metal net, is provided. Further, the door 14 has a drain pipe 1 for draining treated water with the door 14 closed.
6 is fixed. The door 14 is tightly attached to the frame 12 via a packing so that water does not leak from between the door 14 and the frame 12 in a closed state. The door 14 is screwed on the side opposite to the hinge to the frame 12 to close the window in a watertight manner.

In liquid waste such as manure, water is left when the organic substances contained in the liquid are eliminated by the action of bacteria. Therefore, it is necessary to discharge the treated water from the outlet 1B after treating the organic waste. The door 14 with the drain pipe 16 can drain the treated water in a closed state.

The stirrer 10 includes a screw shaft 3 to which the screw fin 19 is fixed, and a vertical cylinder 20 disposed on the outer periphery of the screw shaft 3. The screw shaft 3 is decelerated outside the casing 1. It is connected to the motor 4. The stirrer 10 raises the microorganism carrier and the organic waste along the vertical cylinder 20 with the screw shaft 3 rotating inside the vertical cylinder 20. The microorganism carrier and the organic waste discharged from the vertical cylinder 20 fall from the tapered plate 21 to the outer periphery of the casing 1 and are uniformly dispersed in the casing 1.

The air supply device 11 is provided with two air injection pipes 22 vertically extending on the outer periphery of the vertical cylinder 20 and extending vertically. The air injection pipe 22 is connected to the pressurized air source 8 and injects air supplied from the air injection pipe into the casing 1. The air injection pipe 22 has an injection port 22A that injects air at regular intervals. Injection port 22A
Ejects air toward the outside of the casing 1. The air injected into the casing 1 from the air injection pipe 22 is:
Oxygen is supplied to bacteria living in the microbial carrier particles B. Further, the temperature of the air injected from the air injection pipe 22 can be controlled to adjust the temperature of the microorganism carrier particles B to a temperature at which bacteria can actively work.

The primary treatment device 54 discharges primary treatment water generated when organic waste containing a large amount of liquid, such as manure, is decomposed from the drain pipe 16 at the outlet 1B. The drain pipe 16 is connected to the drain pipe 18 via the drain valve 17, and connected to the supply pipe 43 of the disposal device main body via the pump 44. The primary treated water supplied from the supply pipe 43 to the main body of the disposal device is decomposed and eliminated in the casing 41 by the action of bacteria. The treated liquid from which the organic substances have been eliminated by the bacteria passes through a discharge port 45A opened to a discharge pipe 45 provided at the bottom of the casing 41, and is discharged from the overflow pipe 46 to the outside of the casing 41.

Further, as shown in FIG. 7, the disposal apparatus of the present invention can treat the organic waste in the primary processing apparatus 54 and the secondary processing apparatus 55 and supply the processed organic waste to the disposal apparatus main body . In the disposal device shown in this figure, a secondary processing device 55 is connected between a primary processing device 54 shown in FIG. 6 and a disposal device main body . The secondary processor 55, Ru organic matter contained in the liquid is lost in bacteria.

As shown in the figure, the secondary treatment device 55 is composed of a casing 23 for containing a liquid containing an organic substance and decomposing the organic substance, and air that is contained in the liquid in the casing 23 and floats in the liquid. The apparatus includes a microorganism carrier particle B having a specific gravity stirred together with a liquid, and an air supply device 24 for supplying air to the casing 23 and supplying oxygen to bacteria living in the microorganism carrier particle B. The secondary treatment device 55 supplies air with the air supply device 24, and eliminates organic substances contained in the liquid by the action of bacteria living in the microorganism carrier particles B.

The casing 23 has a box shape as a whole, and the bottoms of the opposing side surfaces are curved so that the width gradually decreases downward, so that the microorganism carrier particles B are convected without stagnation and uniformly stirred. I can do it. Further, the supply pipe 25 for supplying a liquid containing an organic substance is connected to an upper portion of the casing 23. The supply pipe 25 is connected to the drain pipe 16 provided at the discharge port 1B of the primary treatment device 54 via the pump 26, from which the primary treated water treated by the primary treatment device 54 is supplied. The primary treatment water supplied from the supply pipe 25 is treated after removing organic matter in the casing 23, and then overflows and is discharged.

In order to discharge the processed liquid from the casing 23, the secondary processing device 55 has a liquid outlet 27 at the bottom of the casing 23. Casing 2
In order to open the outlet 27 on the bottom surface of the casing 3, the casing 2
A vertically split pipe 29 is fixed to the bottom surface of the pipe 7 away from the bottom surface. The treated liquid is discharged from the discharge port 27 between the vertically divided pipe 29 and the bottom surface of the casing 23. The vertical split pipe 29 connects the center to the discharge pipe 30,
Drain the treated liquid. The discharge pipe 30 connects the cheese 31 near the liquid surface of the casing 23. One drainage channel 32 branched by the cheese 31 is a casing 2
3 to discharge the treated liquid. The other branch path 33 extends vertically upward and extends above the liquid level. When the liquid is supplied from the supply pipe 25 and the liquid level in the casing 23 is increased, the discharge port 27 and the discharge pipe 30 of this structure overflow and discharge the processed liquid.

Further, the discharge port 27 is closed by a porous material 28 through which the microorganism carrier particles B cannot pass. Outlet 2
The porous material 28 that closes the pipe 7 is formed into a mountain shape larger than the vertically divided pipe 29, and is fixed to the bottom surface of the casing 23 so as to cover the vertically divided pipe 29. Porous material 2
For 8, a mesh wire mesh that does not allow the microorganism carrier particles B to pass through is used. The porous material 28 has a mountain shape larger than the vertically divided pipe 29 so that a gap is formed between the vertically divided pipe 29 and the vertically divided pipe 29. The porous material 28 allows the processed liquid to pass therethrough and is discharged from the outlet 27.

An air supply device 24 for injecting air into the casing 23 includes an air injection pipe 34 provided at the bottom of the casing 23 and a pressurized air source 8 for supplying compressed air to the air injection pipe 34. Prepare. The air injection pipe 34 is made of the porous material 2.
8 and is fixed to the inner surface of the porous material 28 in the gap between the vertically split pipe 29. The air injection pipe 34 has a number of air holes 34A.
Is opened, and supplied compressed air is supplied to the air hole 34A.
Spray into the liquid from. The air injected into the liquid floats in the liquid as fine bubbles. The air injected from the air injection pipe 34 convects the liquid with the microorganism carrier particles B in the casing 23 and agitates the liquid. To achieve this,
The casing 23 is provided with a rising duct 35 for raising the liquid by bubbles injected from the air injection pipe 34,
It is arranged above.

The ascending duct 35 has upper and lower ends opened in the casing 23, and sucks the liquid in the casing 23 from the lower end and discharges the liquid from the upper end. The liquid raised in the rising duct 35 is stirred so as to convect in the casing 23. That is, it rises inside the rising duct 35,
It descends outside the rising duct 35 and is stirred in a convection state. The ascending duct 35 is provided with two plate members 36 vertically opposed to each other and provided therebetween.
Is curved so as to gradually increase the width of the lower end. The upper end of the rising duct 35 is located below the liquid level in the casing 23. The ascending duct 35 has an upper end opened in the liquid so that the liquid and the microorganism carrier particles B can be efficiently ascended. The liquid in the rising duct 35 is reduced in apparent specific gravity by the countless rising bubbles and is raised by the rising force of the bubbles.

The air injected from the air injection pipe 34 into the casing 23 agitates the liquid and supplies oxygen to the bacteria living in the microorganism carrier particles B. Further, the temperature of the air injected from the air injection pipe 34 can be controlled to adjust the temperature of the microbial carrier particles B where the bacteria inhabit to a temperature at which the bacteria actively work.

In the casing 23, air floating in the liquid is used to ascend the rising duct 35 together with the liquid, and then falls outside the rising duct 35 and is agitated.
Is filled. As the microorganism carrier particles B, the same microorganism carrier particles as described above can be used. The filling amount of the microorganism carrier particles B is set to 20 to 30% by weight based on the liquid. However, the filling amount of the microorganism carrier particles B can be more than or less than 20 to 30% by weight as an amount that can be stirred together with the liquid.

The secondary treatment device 55 treats the primary treatment water supplied from the primary treatment device 54 by removing organic matter in the casing 23, and then overflows and discharges the treated water. The secondary treated water discharged by overflow is temporarily stored in a tank 56 as shown in the figure. The secondary treated water temporarily stored in the tank 56 is transferred to the supply pipe 43 by the pump 44, and is supplied from here to the casing 41 of the disposal device main body . In the secondary treatment water supplied to the disposal device main body , the organic matter remaining in the liquid in the casing 41 is further decomposed and disappears. The liquid thus treated passes through the discharge port 45A of the discharge pipe 45 provided at the bottom of the casing 41, and is discharged from the overflow pipe 46 to the outside of the casing 41.

[0057]

The disposal apparatus of the present invention has a feature that organic substances contained in a liquid can be efficiently decomposed and eliminated in a short time. That is, the disposal apparatus of the present invention fills the microorganism carrier particles so as to settle below the liquid level, and diffuses the supplied liquid between the upper surface level and the liquid level of the microorganism carrier particles. This is because a diffusion region to be provided is provided, and the liquid containing the organic matter diffused in the diffusion region moves downward through the myriad of microbial carrier particles and is discharged from the outlet provided on the bottom surface of the casing. . The liquid containing organic matter supplied to the casing is uniformly diffused in the diffusion region above the upper surface of the microorganism carrier particles. The organic matter in the liquid which has been uniformly diffused moves downward between the myriad of microbial carrier particles, as indicated by the arrows in FIGS. As described above, the liquid containing the organic matter that is uniformly diffused in the diffusion region and moves downward between the microbial carrier particles is efficiently contacted with the myriad microbial carrier particles, and the liquid inhabits by the bacteria that inhabit the microbial carrier particles. There is a feature that organic matter in the inside is decomposed and eliminated very efficiently.

Further, the disposal apparatus of the present invention has a feature that the organic matter can be uniformly contacted with the bacteria inhabiting the microorganism carrier so as not to apply an excessive force to the microorganism carrier. That is, the apparatus of the present invention uses microbial carrier particles formed into porous granules having a specific gravity that sediments in a liquid supplied to a casing and having microscopic voids for bacteria to live in the microbial carrier. And, furthermore, an air injection pipe for injecting air into the casing is arranged at the bottom of the casing,
This is because the air injected from the air injection pipe uniformly contacts the organic matter with the bacteria of the microorganism carrier particles. For this reason, the microorganism carrier particles are characterized in that they can be used for a long time without being forcibly agitated, without exerting an excessive pressure, with extremely little damage.

In particular, the microbial carrier particles have a feature that they can be used for an extremely long time without crushing the fine voids necessary for inhabiting the bacteria, as well as minimizing abrasion of the whole. Therefore, the apparatus of the present invention has features that the time for replacing the microorganism carrier particles with new ones can be lengthened, the maintenance can be simplified, and the running cost can be reduced.

[0060] Further, the present onset Ming disposal device has a liquid containing an organic substance treated with the primary treatment apparatus is lost in bacteria. The disposal device, the organic waste is treated with a primary processor, the treated water discharged at this time is supplied to the disposal apparatus main body, eliminating the organic substances contained in the treated water in the disposal apparatus body <br/> Let me. Therefore, this disposal apparatus has a feature that organic waste contained in the treated water generated at this time can be efficiently decomposed and eliminated while organic waste can be decomposed and eliminated by the primary treatment apparatus.

Further, in the disposal device according to the third aspect of the present invention, the liquid containing organic matter treated by the primary treatment device and the secondary treatment device is eliminated by bacteria. This disposal device treats organic waste with a primary treatment device and supplies primary treatment water discharged at this time to a secondary treatment device. Furthermore, the organic matter contained in the primary treatment water is supplied to the disposal device main body after being eliminated in the secondary treatment equipment.
Therefore, this disposal device can decompose and remove organic waste in the primary treatment device, and decompose and remove organic matter contained in the treated water generated at this time in the secondary treatment device.
Further, the organic matter remaining in the liquid can be eliminated in the disposal device main body . As described above, the disposal device that performs the treatment by the primary treatment device and the secondary treatment device has a feature that the organic matter contained in the liquid can be more reliably eliminated.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a disposal device previously developed by the present inventors.

FIG. 2 is a cross-sectional view of the disposal device shown in FIG.

FIG. 3 is a schematic cross-sectional view of a main body of a disposal apparatus according to an embodiment of the present invention for removing organic matter with bacteria.

FIG. 4 is a cross-sectional view of the disposal device main body shown in FIG. 3;

FIG. 5 is an enlarged perspective view of a main part of the disposal device main body shown in FIG. 3;

Figure 6 is a schematic cross-sectional view of a disposal apparatus according to actual施例of the present invention

FIG. 7 is a schematic sectional view of a disposal device according to another embodiment of the present invention.

[Explanation of symbols]

1: Casing 1A: Supply port
1B ... Discharge port 2 ... Stirring blade 3 ... Screw shaft 4 ... Deceleration motor 5 ... Pressure tank 6 ... Heater 7 ... Temperature control circuit 8 ... Pressurized air source 10 ... Agitator 11 ... Air supply device 12 ... Frame 14 ... Door DESCRIPTION OF SYMBOLS 15 ... Perforated plate 16 ... Drain pipe 17 ... Drain valve 18 ... Water distribution pipe 19 ... Screw fin 20 ... Vertical cylinder 21 ... Tapered plate 22 ... Air injection pipe 22A ... Injection port 23 ... Casing 24 ... Air supply tool 25 ... Supply pipe 26 ... Pump 27 ... Discharge port 28 ... Porous material 29 ... Vertical split pipe 30 ... Discharge pipe 31 ... Cheese 32 ... Drainage path 33 ... Branch path 34 ... Air injection pipe 34A ... Air hole 35 ... Rise duct 36 ... Plate 37 ... Flow rate Adjusting valve 38 Switch 39 Power supply 40 Temperature sensor 41 Casing 42 Air supply device 43 Supply pipe 44 Pump 45 Discharge pipe 45 ... outlet 46 ... overflow pipe 47 ... porous material 48 ... cheese 49 ... drainage 50 ... branch path 51 ... air injection pipe 51A ... air holes
51B: Pipe 52: Air supply pipe 53: Diffusion area 54: Primary treatment device 55: Secondary treatment device 56: Tank B: Microorganism carrier particles

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-337484 (JP, A) JP-A-56-102994 (JP, A) JP-A-4-193398 (JP, A) JP-A-7-107 25691 (JP, A) JP-A-8-112585 (JP, A) JP-A-57-132592 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) C02F 3/02-3 / 10 C02F 11/00-11/20 B09B 3/00

Claims (3)

(57) [Claims] An organic waste is treated by a primary treatment device (54).
Waste equipment to be supplied to the waste equipment body
The treatment device and the disposal device main body have the following configuration.
The organic matter contained in the liquid is removed by bacteria
Waste equipment. (A) The disposal device main body includes a casing (41) in which a liquid containing an organic substance is stored, a microbial carrier that is put in the liquid of the casing (41) and in which bacteria live, and air in the casing (41). An air supply device (42) for supplying oxygen to the bacteria that inhabit the microbial carrier is provided, and air is supplied by the air supply device (42), and the bacteria that inhabit the microbial carrier are contained in the liquid. organics Ru abolished. (B) The microorganism carrier of the main body of the disposal device is a casing (41)
The microbial carrier particles (B) are formed into porous granules having a specific gravity settled in the liquid supplied to the substrate and having fine voids in which bacteria can live . (C) The microbial carrier particles (B) in the main body of the disposal device are filled so as to settle below the liquid level without blowing air, and the upper surface level and the liquid level of the microbial carrier particles (B) are set. A diffusion area for diffusing the supplied liquid between
(53) is provided, and the liquid containing organic matter diffused in the diffusion region (53) moves downward through the innumerable microbial carrier particles (B), and is provided on the bottom surface of the casing (41). Outlet (4
5A) Ru is configured to be discharged from. (D) Further, in the disposal device main body, an air injection pipe (51) for injecting air into the casing (41) is disposed at the bottom of the casing (41), and the air is injected from the air injection pipe (51). It is configured to supply oxygen to bacteria living in the microbial carrier particles (B) . (E) Primary treatment device (54) inhabits bacteria
A casing (1) for containing the microbial carrier particles (B) and this casing
Microorganism carrier particles (B) supplied to Sing (1) and organic waste
A stirrer (10) for mechanically stirring the microorganism carrier particles (B)
Air is supplied to the mixture with the organic waste to produce microbial carrier particles.
Air supply device to supply oxygen to bacteria living in (B)
(11), and stirring while supplying air with the air supply tool (11).
Stir with a stirrer (10) to remove the bacteria that inhabit the microbial carrier particles (B).
The terrier decomposes and removes organic waste. (F) The primary treatment device (54) is placed vertically inside the casing (1).
A stirrer (10) is provided to extend to the stirrer (10)
Is the screw shaft fixing the screw fin (19)
(3) and a vertical shaft arranged around the screw shaft (3).
A screw that has a straight tube (20) and rotates inside the vertical tube (20).
The microbial carrier particles (B) are transferred to the vertical cylinder (20) by the screw shaft (3).
Along the casing, descending outside the vertical cylinder (20)
It is configured to be stirred in a convection state in (1). (G) The air supply device (11) is placed vertically on the vertical cylinder (20).
With an extended, vertically arranged air injection pipe (22),
The air injection pipe (22) injects air into the casing (1).
The outlet (22A) is open, and the outlet (22
The air injected from A) into the casing (1)
Supplies oxygen to bacteria living in the body (B). 2. The disposal device main body has an outlet (45A) opened below the air injection pipe (51) at the bottom of the casing (41), and the outlet (45A) is connected via an overflow pipe (46). 2. The disposal device according to claim 1, wherein the waste is discharged outside the casing (41) by bacteria. 3. Organic waste, following a primary processor (54)
Treated with secondary treatment device (55) with waste having all of the structure of
The disposal device according to claim 1, wherein the organic matter contained in the liquid supplied to the disposal device body is eliminated by bacteria. (A) The secondary treatment device (55) includes a casing (23) for containing a liquid containing an organic substance, and is agitated together with the liquid by air that is put in the liquid in the casing (23) and floats in the liquid. A microbial carrier particle (B) having a specific gravity to be supplied, and an air supply device (24) for supplying air to the casing (1) and supplying oxygen to bacteria living in the microbial carrier particle (B). Air is supplied by the tool (24), and the organic matter contained in the liquid is eliminated by the action of bacteria living in the microbial carrier particles (B). (B) The air supply tool (24) includes an air injection pipe (34) provided at the bottom of the casing (23), and a pressurized air source (8) for supplying pressurized air to the air injection pipe (34). ). (C) In the casing (23), a rising duct (35) for raising the liquid by bubbles injected from the air injection pipe (34) is provided above the air injection pipe (34). (D) The ascending duct (35) has upper and lower ends at the casing (23).
And the liquid in the casing (23) is sucked from the lower end and discharged from the upper end. (E) The air injected from the air injection pipe (34) into the casing (23) replenishes the bacteria inhabiting the microbial carrier particles (B) with oxygen. It is configured to raise the liquid and agitate the liquid in a convection state in the casing (23). (F) An outlet (27) for the treated liquid is opened at the bottom of the casing (23), and the outlet (27) is a porous material (28) through which the microorganism carrier particles (B) cannot pass. It is closed.