JPH11116368A - Treatment of organic material-containing waste liquor and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for treating an organic material-containing waste liquor such as excrement capable of providing a compost or a liquid fertilizer of good quality by which removal or posttreating operations of a low-specific gravity coarse solid materials such as a rubber or a plastic floating on the liquid surface such as the excrement in a preparation tank by a hand are not required to prevent the unfermentable coarse solid materials from mixing in a compost material or inorganic fine solid materials from mixing in a liquid fertilizer and an apparatus for treating the organic material-containing waste liquor. SOLUTION: Low-specific gravity coarse solid materials such as a rubber or a vinyl resin and high-specific gravity coarse solid materials such as metallic pieces or gravel are respectively made to be separated and recovered from an organic material-containing waste liquor such as excrement in the first solid-liquid separating step and device 5 and fine organic fibers which are not separated in the first solid-liquid separating step and device 5 are respectively made to be separated and recovered in the second solid-liquid separating step and device. Furthermore, posttreatment such as solid-liquid separation and dehydration and incineration treatment or the dehydration and composting treatment can separately and mechanically be carried out. The opening size or slit size of respective screens in the solid-liquid separating devices are numerically limited within the optimal ranges to perform the efficient solid-liquid separation with slight mutual mixing in of the solid and liquid materials.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for treating an organic matter-containing waste liquid, and more particularly, to efficiently and economically producing a high-quality liquid fertilizer from an organic matter-containing waste liquid such as animal excrement including livestock excreta and human waste. The present invention relates to a method and an apparatus for performing a high-quality composting process.

[0002]

2. Description of the Related Art As a conventional human waste treatment method, the present applicant has
It was disclosed in Japanese Patent Publication No. 62-42678 as an application.
There are the following methods. That is, at least
-Enzyme preparation containing zeolites, cellulases and proteases
To an organic matter-containing waste liquid such as untreated animal excrement.
0.01 to 0.05% by weight, and then a solid-liquid separation treatment is performed.
After the solid matter in the organic matter-containing waste liquid is separated,
The filtrate obtained is 25-50 Nm ^Three/ BODkg / day aeration
Aerobic high temperature under high temperature conditions of 50-80 ° C
Fermentation to make weakly basic liquid fertilizer "
Is known to.

[0003] In the above method, at least the BOD value is reduced in the treatment of night soil, and since the treatment is performed at a high temperature, parasite eggs such as roundworm eggs and hookworm eggs, maggots and Shigella bacteria are also killed. In addition, it is an excellent method in which nitrogen, phosphorus and potassium in raw urine can be used for fertilizer, and a liquid fertilizer exhibiting a favorable weakly basic pH can be obtained.

[0004] Further, the above-mentioned processing method has been specifically performed as follows using an apparatus as shown in FIG. That is, the excrement collected and transported by the pumping truck 101 is put into the charging tank 102 via the hose 101a of the pumping truck. By means of a bar screen 102a having an effective mesh width of about 20 mm provided between the charging tank and the adjusting tank 103 connected to the charging tank, coarse manure, metal pieces or wood pieces 102b are removed from the night soil.
3 and stored.

An enzyme preparation, for example, “purification clean” (trade name, manufactured by Toyo Clean Chemical Co., Ltd.) is added to the human waste received in the adjusting tank 103 from an enzyme agent adding device 104. Next, the enzyme was stirred for about 24 hours while the manure was air-stirred by the compressed air blown into the manure from the nozzle header 106h installed at the bottom of the adjustment tank from the compressed air source 105 via the compressed air blowing line 106. The formulation is reacted with human waste.

[0006] Then, the night soil is pumped up by a cutter pump 107 provided at the bottom of the adjusting tank while carving rubber, plastic, cloth, and other coarse foreign matters, and is then rotated by a rotary drum as a solid-liquid separation device. It is sent to the mold screen 108.

The solid-liquid separation device 108 uses a screen having a slit width of 0.3 to 1 mm to remove rubber, plastic, cloth, other foreign matter in human waste and organic matter cut by the cutter pump as described above. Impurities composed of a mixture with relatively fine paper fibers mainly composed of pulp are separated from human waste and the water content is about 60% by a screw press 108a.
Dehydrate to a degree. The dehydrated solid is discharged to the solid receiving container 108b.

[0008] The human waste filtrate obtained by separating and dehydrating the contaminants is sent to a first aerobic high-temperature fermentation tank 110 in which an aeration pump 109 is immersed in the bottom of the tank. Is sent to a second aerobic high-temperature fermenter 112 immersed in the bottom of the tank. In the first and second aerobic high-temperature fermenters, the human waste in the tank is reduced to 25 to 50 Nm ³ /
After performing aerobic high-temperature fermentation for a total of about 28 to 30 days under aeration conditions of BOD kg / day and high temperature conditions of 50 to 80 ° C., the obtained liquid manure is sent to the liquid manure storage tank 113. To store.

The solid matter separated from human waste by the solid-liquid separation device 108 and dehydrated to a water content of about 60% is naturally fermented in the atmosphere into compost, and is used as a fertilizer together with the liquid fertilizer. Sometimes.

[0010]

The conventional human waste processing apparatus shown in FIG. 2 and the conventional human waste processing method using the same have the following problems.

(1) Large and small impurities such as rubber, plastic, cloth, etc., in the human waste excreted by the air in the adjusting tank 103 are excreted together with the foam of the air blown. Comes to the surface. It was impossible to once again uniformly disperse the large-size contaminants in the liquid, having a small specific gravity once floating on the liquid surface. Due to the action of the enzyme preparation added to the adjustment tank, organic matter is decomposed, the viscosity of human waste is reduced, and the separation between solid and liquid is improved. Thus,
Contaminants that have formed a layer floating on the human excreta surface must be removed by a primitive and unsanitary method in which workers manually scrape them out of the adjustment tank, reducing the load on workers. In addition to increasing the size, it has become difficult to automatically operate the apparatus, and the number of workers required to operate the apparatus has also increased.

[0012] Further, since the above-mentioned contaminants scraped up from the liquid surface in the adjusting tank contain a large amount of liquid components of night soil,
It could not be disposed of as it was, and the following treatment was performed. By installing a drain tank and storing it for a long time,
A part of the surface that has been dried to a certain extent is packed in a bag and transported to an incineration plant for incineration or landfill disposal. It is pumped into a bucket, put into a screw press, dehydrated, and incinerated in an incinerator. As described above, the treatment of the contaminants that have been scraped also requires manual operations by workers, is unsanitary, increases the load on workers, and makes it difficult to automatically operate the apparatus. The number of workers required to operate the device was also large.

(2) Among the solid contaminants separated from the night soil and dewatered to a water content of about 60% by the solid-liquid separation device 108, paper fibers mainly composed of organic substances, which are the raw materials of compost, and rubber Since coarse foreign substances such as plastics and the like are mixed, the quality of the compost produced from the impurities is reduced. In other words, in order to perform good compost fermentation, the material must be as uniform as possible, contain no unfermentable components, that is, substances that are not predated by microorganisms, and have adequate air permeability,
A necessary condition is that the nutritional balance in the ingredients is good.
Therefore, the incorporation of rubber, plastic, etc. locally makes the air permeability and nutritional balance of the surrounding organic material locally uneven, and as a result, locally inhibits good compost fermentation. May be left behind, moisture may come out of the compost, and the quality of the compost as a whole may be reduced. Further, in the compost, wrapping paper of feminine menstrual cotton not cut by the cutter pump 107, a tampon tube,
If impurities such as vinyl and plastic, such as bags of supermarkets and pantyhose, are contained in such a manner that they can be clearly recognized, the appearance is poor and a good compost cannot be obtained. Since the quality of the compost is degraded as described above, the composting process of the contaminants is abandoned.
There is a case where incineration treatment is performed by drying treatment or landfill treatment, so that not only is it not possible to effectively use organic matter as compost, but also extra energy and cost are required for treatment,
Landfill could cause soil contamination.

(3) Further, the cutter pump 107
Inorganic substances such as rubber, plastic, fine sand and metal powder, finely chopped to the same size as paper fibers, are not separated from human waste by the solid-liquid separation device 108 and are mixed into the human waste filtrate. 1, a second aerobic high temperature fermenter 110,
Even if the fermentation treatment is performed at 112, these inorganic substances are mixed into the liquid fertilizer as they are without being decomposed, resulting in a decrease in the quality of the liquid fertilizer. In addition, these non-fermentable components and inorganic substances are clogged in the nozzle and the liquid feed pipe in the liquid fertilizer spraying equipment, which may cause an unexpected failure.

(4) There is sedimentation of inorganic components from the liquid fertilizer being stored in the liquid fertilizer storage tank 113, and when this deposits, the actual volume of the storage tank is reduced, and the concentration of the liquid fertilizer carried out varies with time.

The present invention solves the above-mentioned problems of the prior art, and manually scrapes a coarse solid such as rubber and plastic having a small specific gravity and floated on the surface of urine fluid in an adjusting tank. It does not require any work such as manual post-processing, and the above-mentioned non-fermentable solids are mixed into the raw material of paper fibers and liquid fertilizer as compost material, and into human urine filtrate. The method and apparatus for treating an organic matter-containing waste liquid that can easily treat coarse and combustible solids having a small specific gravity such as rubber and plastic as described above without deteriorating the quality of liquid or fertilizer. The task is to provide.

The present invention also relates to an organic material which does not cause a decrease in the actual volume of the storage tank due to the sedimentation and accumulation of inorganic components from the liquid fertilizer stored in the liquid fertilizer storage tank, and does not cause a variation over time in the concentration of the liquid fertilizer to be carried out. Another object of the present invention is to provide an apparatus for treating contained waste liquid.

[0018]

In order to solve the above-mentioned problems, the method of the present invention comprises at least lipase, cellulase,
An enzyme preparation containing a protease is used in an amount of 0.01 to 0.05% by weight based on an organic matter-containing waste liquid such as untreated animal manure.
After adding, and then performing a solid-liquid separation treatment to separate the solid matter in the organic matter-containing waste liquid, the obtained filtrate is 25 to 5%.
0Nm ³ / BODkg / day of aeration conditions, and, 50-8
Under a high temperature condition of 0 ° C., aerobic high temperature fermentation treatment is performed,
In the method for treating an organic matter-containing waste liquid that forms a weakly basic liquid fertilizer, in the first solid-liquid separation step, the organic matter-containing waste liquid is used to obtain rubber, plastic, cloth, other metal pieces,
After separating coarse solid components such as gravel and the like, the enzyme preparation is added to the obtained first filtrate to cause a preliminary fermentation reaction at a normal temperature or more and a low temperature of less than 50 ° C., and then a second fermentation reaction is performed.
In the solid-liquid separation step, the first filtrate is separated from the first filtrate.
Fine paper fibers mainly composed of organic substances not removed in the solid-liquid separation step are separated, and the obtained second filtrate is made into a weakly basic liquid fertilizer by the aerobic high-temperature fermentation treatment. Fine paper fibers mainly composed of organic matter were dehydrated to a predetermined moisture content, and then spontaneously fermented in the atmosphere to form compost.

Further, in the method of the present invention, the first
Rubber, plastic, cloth,
For separating coarse solid components such as metal pieces and gravel, a screen plate having a round hole of 6 to 8 mm in diameter is used.
In the second solid-liquid separation step, when separating fine paper fibers mainly composed of organic substances that have not been removed in the first solid-liquid separation step, a width of 0.5 to 1.5 m
It is preferable to use a screen plate having a number of slits of m or a number of holes having substantially the same filtration efficiency as this. Here, "having substantially the same filtration efficiency" means that "solid matter having substantially the same size can be separated and filtered with substantially the same efficiency", and in the same sense hereinafter. Used.

Further, in the method of the present invention, in the third solid-liquid separation step, the specific gravity of the rubber, plastic, cloth, etc. separated in the first solid-liquid separation step is smaller than the liquid component, and It is preferable that the coarse solids are received, solid-liquid separation is further performed, the obtained combustible solids are subjected to a dehydration treatment to a predetermined moisture content, and then incinerated.

Further, in the method of the present invention, in the third solid-liquid separation step, a screen plate provided with a large number of slits having a width of 1 to 3 mm or a large number of holes having a filtration efficiency substantially equivalent thereto. It is preferred to use

Next, in order to solve the above-mentioned problems, in the apparatus of the present invention, untreated waste liquid containing organic matter such as animal excrement is directly received from a pumping truck through a hose and a pipe, and is made of rubber or plastic. Solid-liquid separator for separating coarse solid components such as cloth, other metal pieces, gravel, etc., an adjustment tank for receiving and storing the filtrate of the first solid-liquid separator, and an enzyme in the adjustment tank. An enzyme preparation addition device for adding a preparation, and an adjustment tank stirring device for stirring the filtrate in the adjustment tank,
The adjusted liquid in the adjusting tank, to which the enzyme preparation has been added and which has been preliminarily fermented at a low temperature, is received to separate fine paper fibers mainly composed of organic substances not removed by the first solid-liquid separation device. A second solid-liquid separation device, a maturation tank comprising a plurality of tanks for receiving and storing the filtrate of the second solid-liquid separation device and performing aerobic high-temperature fermentation, and a filtrate in the maturation tank. A liquid medium aeration device for aeration, a liquid fertilizer storage tank for receiving and storing the liquid fertilizer obtained in the maturation tank, a liquid fertilizer storage tank stirring device for stirring the stored liquid fertilizer in the liquid fertilizer storage tank, and the second solid-liquid separator. A first dehydrator for dehydrating fine paper fibers mainly containing separated organic substances to a predetermined moisture content;
A fibrous solid storage means for receiving the dehydrated fibrous solids from the dehydrator and storing it as a compost material; and rubber, plastic, cloth, etc., from the first solid-liquid separator.
A third solid-liquid separator for receiving a coarse combustible solid having a low specific gravity and further performing solid-liquid separation, and a combustible solid received from the third solid-liquid separator for dehydration to a predetermined moisture content , And an incinerator for receiving a combustible solid from the second dehydrator via a conveying means and incinerating the same, and configured an organic matter-containing waste liquid treatment apparatus. Things.

In the apparatus of the present invention, the screen plate of the first solid-liquid separator has a large number of round holes having a diameter of 6 to 8 mm, and the screen plate of the second solid-liquid separator has a large number of holes. The third solid-liquid separation device has a screen plate having a width of 1 to 3 mm, and a large number of slits having a width of 0.5 to 1.5 mm or a number of holes having a filtration efficiency substantially equivalent thereto.
It is preferable to configure an organic matter-containing waste liquid treatment apparatus by providing a plurality of slits or a plurality of holes having substantially the same filtration efficiency.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method and an apparatus for treating an organic matter-containing waste liquid according to the method of the present invention having the above configuration will be described with reference to the accompanying drawings.

FIGS. 1 and 2 show the first half and the second half, respectively, of a flow sheet / configuration diagram showing the configuration of an embodiment of the method and the apparatus of the present invention.

The apparatus for treating an organic matter-containing waste liquid according to the present invention shown in FIGS. 1 and 2 comprises an organic matter such as untreated animal manure from a pumping car 1 via a hose 2, a cam lock type hose joint 3 and a receiving line 4. Directly accept waste liquid containing rubber,
Closed pressurized first solid-liquid separator 5 for separating coarse solid components such as plastic, cloth, other metal pieces, and gravel
An adjustment tank 6 for receiving and storing the filtrate of the first solid-liquid separation device via a filtrate transfer line 5c; an enzyme preparation addition apparatus 7 for adding an enzyme preparation to the adjustment tank 6; An air blowing type adjusting tank stirrer 8 for blowing air into the filtrate in the adjusting tank to stir the filtrate from a nozzle header 8c provided at the bottom of the adjusting tank connected to the tank 8a via a pipe 8b.
The enzyme preparation, which is sent through the transfer line 6o by the submerged pump 6p at the bottom of the adjustment tank, is added,
A rotary drum type for receiving a preliminarily prepared fermentation reaction at a low temperature of less than ° C and separating fine paper fibers mainly composed of organic substances not removed by the first solid-liquid separator. Second solid-liquid separation device 9 consisting of a screen
And a maturation tank 10 composed of a plurality of tanks for receiving and storing the filtrate of the second solid-liquid separation device 9 via a pipe line and performing aerobic high-temperature fermentation, and aerating the filtrate in the maturation tank. Submerged aeration device 11, a liquid fertilizer storage tank 12 for receiving and storing liquid fertilizer obtained in the maturation tank, a compressed air source 18a and a pipe 1
Air fertilizer storage tank stirrer 18 that blows air into the liquid fertilizer in the liquid fertilizer storage tank and stirs the liquid fertilizer from a nozzle header 18c provided at the bottom of the liquid fertilizer storage tank connected via the liquid fertilizer storage tank 18b.
And a first dehydrator 1 comprising a screw press for dehydrating fine paper fibers mainly composed of organic matter separated by the second solid-liquid separator 9 to a predetermined (about 60%) water content.
3, a fibrous solid storage means 14 comprising an indoor solid storage place for receiving the dehydrated fibrous solids from the first dewatering device via a case conveyor 13cv and storing them as compost raw materials; From the first solid-liquid separation device 5, a rotatable drum-type screen that receives coarse combustible solids such as rubber, plastic, cloth, etc., having a low specific gravity through the transfer pipe 5d and further performs solid-liquid separation. From the third solid-liquid separation device 15,
A second dehydrator 1 comprising a screw press for receiving a combustible solid and dehydrating to a predetermined (about 60%) water content.
6 and a transport means 16b comprising a transport trolley for receiving and transporting the combustible solids discharged from the second dehydrator.
And an incinerator 17 that receives combustible solids through the transporting means 16b and incinerates them.

The embodiment of the apparatus of the present invention shown in FIG. 1 has a specific configuration as shown below, in addition to the above basic configuration.

The first solid-liquid separator 5 of the closed pressure type
A primary chamber 5a connected to the receiving line 4 for receiving an untreated organic-containing waste liquid, and a screen plate 5s.
To communicate with the primary chamber and to store the first filtrate 2
A secondary chamber 5b and the filtrate transfer line 5 connected to the secondary chamber;
c, an automatic open / close valve 5cv provided at the upper end of the primary chamber, a low specific gravity coarse solid discharge line 5d, and an automatic open / close valve 5dv provided at the low specific gravity coarse solid discharge line. Pressurized washing water supply pipe 5w connected to the upper end of the primary chamber
And an automatic on-off valve 5w provided in the pressurized washing water supply line.
v, a sedimentation / deposition which is connected to the bottom of the primary chamber and discharges coarse solids having a higher specific gravity than waste liquid containing organic matter such as metal pieces and gravel deposited and deposited on the bottom to the drainer 5f outside the primary chamber. The sediment discharge line 5e and the automatic on-off valve 5ev provided in the sediment / sediment discharge line.

The screen plate 5s has a diameter of 6 to
It is desirable to provide a structure having a large number of round holes of 8 mm (usually 7 mm).

The first solid-liquid separator 5 of the closed pressure type is provided with a clogging preventing means for preventing the screen plate from being clogged in order to enable continuous operation for a long time. It is desirable. The means for preventing clogging is described in, for example, Japanese Patent Application Laid-Open No. 60-119291.
The primary chamber 5 as disclosed in FIGS. 2, 2 and 7.
a, an impeller for providing cavitation between the screen plate 5 and the screen plate 5 by rotating the front side in the direction of rotation on the side corresponding to the screen plate 5 close to the screen plate and separating the rear side from the screen plate 5 by high-speed rotation. Is effective.

The screen plate 9s of the second solid-liquid separation device 9 composed of the rotary drum screen has a width of 0.5
It is desirable to provide a large number of slits having a width of about 1.5 mm (normally 1.0 mm). Is also good.

After the second solid-liquid separator 9 comprising a rotary drum screen, a second filtrate from which fine paper fibers mainly composed of organic substances are separated, and a first filtrate comprising the screw press are provided. And the liquid discharged from the dehydrating device 13 are received via the pipes 9o and 13a, respectively, and fine sand, silt, etc., which cannot be removed by the solid-liquid separating device 9, are sedimented by staying for about 5 minutes. A sand removal device 19 for removing is usually provided. When the slit width of the screen plate 9s of the second solid-liquid separation device 9 including the rotary drum screen is large in the above range,
For example, when it is in the range of 1.0 to 1.5 mm or larger than 1.0 mm, it is more desirable to install.

After the sand removing device 19, a relay tank 20 is usually provided. The relay tank 20 includes the sand removal device 1.
This can be omitted if the liquid can be introduced from 9 to the next liquid fertilizer raw material storage tank 21 or maturation tank 10 under natural flow through the filtrate transfer pipe line 19o after sand removal. The relay tank 20
Then, the liquid fertilizer raw material liquid is transferred to the next liquid fertilizer raw material storage tank 21 or the maturation tank 10 via the liquid submersible pump 20p and the transfer pipeline 20o.

The above-mentioned liquid fertilizer raw material storage tank 21 is used for the treatment according to the present invention when the receiving time interval of the waste liquid containing the organic matter such as animal excrement is greatly unstable or when it is impossible to receive the waste liquid for a long time in winter in a heavy snowfall area. In order to ensure continuous operation of the apparatus, particularly the maturation tank 10, the liquid fertilizer raw material to be supplied to the maturation tank 10 is stored and provided to have a function as a buffer. The liquid fertilizer raw material storage tank 21 is not required when the time interval for receiving waste liquid containing organic matter such as animal manure is small and stable.

At the upper end of the maturation tank 10, a bubble layer on the liquid surface is broken by rotating blades, and the gas in the upper space in the maturation tank is guided to a soil deodorizer (not shown) by a suction fan (not shown). , A defoaming machine 10df. Furthermore, in order to measure and manage the liquid temperature during fermentation, a submerged thermometer 1
0t is provided.

The liquid fertilizer storage tank 12 is provided with a nozzle header 1 provided at the bottom of the liquid fertilizer storage tank connected to a compressed air source 18a through a pipe 18b in order to stir the liquid fertilizer during storage.
From 8c, an air-blowing type liquid manure storage stirrer 18 for stirring air by injecting air into the liquid manure in the liquid manure storage tank is usually provided. The liquid fertilizer storage tank is provided with an immersion pipe 12p for pumping the liquid fertilizer from the storage tank by a pump for pumping the liquid fertilizer 32 and a hose joint 12j.

The screen plate 15s of the third solid-liquid separation device 15 composed of the rotary drum type screen is
It is desirable to provide a large number of slits having a width of 1 to 3 mm (usually 2 mm). However, a large number of holes such as round holes and long holes having substantially the same filtration efficiency as the large number of slits having the width may be provided. .

Next, the operation of the organic matter-containing waste liquid treatment apparatus according to the present invention shown in FIGS. 1 and 2 and the embodiment of the organic matter-containing waste liquid treatment method according to the present invention using the same will be described below. Will be described step by step.

1. Receiving waste liquid containing organic matter and separating coarse impurities in the first solid-liquid separation step (1) Open the automatic opening / closing valve 5c of the filtrate transfer pipe line 5c of the first solid-liquid separation device 5 of a closed and pressurized type. With the automatic open / close valve 5dv of the low specific gravity coarse solid transfer line 5d, the automatic open / close valve 5ev of the sediment sediment discharge tube 5e, and the automatic open / close valve 5wv of the pressurized washing water supply line 5w closed, the pumping truck 1 hose 2
Is connected to a cam lock type hose joint 3, and an untreated organic matter-containing waste liquid such as animal waste or manure is removed by a pump of a pumping truck through a receiving pipe 4 to the closed pressurized first solid-liquid separation device 5. To the first chamber 5a.

(2) The organic substance-containing waste liquid filled in the primary chamber 5a is discharged from the pump of the pumping truck (0.3 to 0.3).
1.0 kg / cm ² ) as a power source and a diameter of 6 to 8 mm
Filtration is performed while coarse impurities are separated by a screen plate 5s having a large number of (normally 7 mm) round holes. The first filtrate containing fine paper fibers passing through the screen plate flows into the secondary chamber 5b, and is transferred to the control tank 6 via the automatic opening / closing valve 5c and the filtrate transfer pipe 5c.

The first solid-liquid separator 5 uses a screen plate having a large number of round holes having a diameter of 6 to 8 mm for the following reasons. That is, when a slit is used instead of the round hole, there is a possibility that a thin foreign substance such as vinyl may pass through. When the diameter is less than 6 mm, the filtration rate is reduced, and the processing efficiency is deteriorated. On the other hand, if the diameter is more than 8 mm, coarse impurities other than fibrous solids, such as gravel, will increase, and a large amount of coarse inorganic substances will be mixed in the compost material, which is not preferable.

(3) Among coarse contaminants in the organic-containing waste liquid flowing into the primary chamber 5a, a solid substance having a specific gravity smaller than that of the organic-containing waste liquid such as rubber, plastic, cloth, etc. is one.
It floats on the upper part of the next chamber to form a floating object layer, and the thickness of the floating object layer gradually increases. Further, among the coarse impurities in the organic matter-containing waste liquid, solid matter having a greater specific gravity than the organic matter-containing waste liquid, such as gravel and metal chips, settles in the primary chamber and deposits at the bottom of the primary chamber, and the amount of deposits Also gradually increase.

(4) After a lapse of a predetermined time (this time can be determined by a preliminary experiment) in which the floating layer in the primary chamber 5a is estimated to reach a predetermined thickness, the filtrate transfer line 5c The automatic open / close valve 5cv of the low specific gravity coarse solid discharge line 5d is opened and the discharge pressure (0.3 to 1.0 kg / cm ² ) of the pump of the pump is used as a power source. A floating material composed of rubber, plastic, cloth, etc. mixed with waste liquid containing organic matter is mixed with a small amount of organic waste liquid in the primary chamber together with a third rotating drum screen.
To the solid-liquid separator 15.

(5) After a lapse of a predetermined time (this time can be determined by a preliminary experiment) in which it is estimated that the floating material layer in the primary chamber 5a has decreased to a predetermined thickness, the filtrate transfer line is re-started. 5c, the automatic on / off valve 5cv of the low specific gravity coarse solid discharge line 5d is closed, and the separation of coarse impurities in the organic matter-containing waste liquid is performed again, and the first filtrate obtained above is separated. The transfer to the adjustment tank 6 is restarted and continued for a predetermined time.

(6) The above operations (2) to (5) are repeated a predetermined number of times or for a predetermined period of time, and the predetermined number of times or time (this time) is estimated that the amount of bottom deposit in the primary chamber has reached a predetermined amount. (The number or time can be determined by a preliminary experiment), or when the organic matter-containing waste liquid in the pumping car is exhausted, the sealed pressurized type 1
The supply of the waste liquid containing organic matter to the solid-liquid separation device 5 is stopped. Next, the automatic on-off valve 5e of the sediment deposit discharge line 5e
After opening the v, the automatic opening / closing valve 5wv of the pressurized washing water supply pipe 5w is opened, and sedimentation, gravel, metal chips, etc. settled and deposited on the bottom of the primary chamber from the upper end of the primary chamber 5a. Pressurized cleaning water is sprayed to discharge the sediment to the drain 5f.

2. Regarding the operation of treating the first filtrate in the adjusting tank (1) As described above, coarse impurities such as rubber, plastic, cloth, metal chips, and gravel in the organic matter-containing waste liquid are separated, and fine paper fibers are removed. Tank 6 receiving a predetermined amount of the first filtrate in which impurities mainly containing organic substances such as water are suspended.
From 0.01 to the filtrate from the enzyme preparation addition device 7
An enzyme preparation of 0.05% by weight (usually 0.03% by weight) is added. The above enzyme preparation contains at least lipase (lipolytic enzyme), cellulase (fibrinolytic enzyme) and protease (proteolytic enzyme). In addition, amylase (starch degrading enzyme), biological tissue disintegrating enzyme, Purification clean (trade name: manufactured by Toyo Clean Chemical Co., Ltd.) containing special microorganisms for aerobic biological treatment, nutrient sources, reaction buffers and the like is suitable.

(2) Compressed air supplied from a compressed air source 8a to a nozzle header 8c provided at the bottom of the regulating tank via a conduit 8b is blown into the liquid to which the enzyme preparation has been added, and air is stirred. For a predetermined time (around 24 hours)
Preliminary low-temperature fermentation treatment is performed at room temperature or higher and lower than 50 ° C. to partially decompose organic substances in the liquid, reduce the liquid viscosity, and improve the separability between solid and liquid.

(3) The adjusted liquid obtained by reacting for a predetermined time is sent to the next second solid-liquid separation device via the adjusted liquid transfer line 6o by the submerged pump 6p.

3. Separation of fine paper fibers in the second solid-liquid separation step (1) In the second solid-liquid separation device 9 composed of a rotary drum screen, the width is 0.5 to 1.5 mm (usually 1.0 to 1.0 mm).
mm), or a screen plate 9s having a large number of round holes or long holes having substantially the same filtration efficiency as that of the slits of 9 mm). Fine paper fibers are separated. Since the viscosity of the adjusted liquid is reduced due to the action of the enzyme preparation, and the solid and the liquid are easily separated, the separation is performed efficiently and efficiently.

In the second solid-liquid separation device 9, a screen plate having a large number of slits having a width of 0.5 to 1.5 mm or a large number of holes having a filtration efficiency equivalent to this is used. Is for the following reason.

When the slit width is less than 0.5 mm, the filtration rate is reduced and the processing efficiency is deteriorated. Also,
When it exceeds 1.5 mm, inorganic substances and paper fibers mixed together with paper fibers in the first filtrate without being sufficiently separated in the first solid-liquid separation step are separated in the second solid-liquid separation step. And it is contained in the second filtrate in a large amount. Those with a large specific gravity, such as sand and metal powder,
It is possible to remove the precipitate by introducing the second filtrate to the next tank via the sand removing device. However, while the inorganic particles and the relatively large paper fibers which cannot be removed by precipitation are suspended,
If the filtrate is introduced into the maturation tank, the following problem occurs. I. The inorganic particles remain in the liquid fertilizer without being decomposed, settle and accumulate in the liquid fertilizer storage tank, and reduce the actual volume of the storage tank. B. Fermentation and decomposition reactions occur in organic paper fibers in the maturation tank. However, if a large amount of large (especially thick) fibers are mixed in, a long fermentation reaction time is required,
If the processing time in the maturation tank is short, some paper fibers will remain in the liquid fertilizer without decomposition and will precipitate and accumulate in the liquid fertilizer storage tank, only reducing the actual volume of the storage tank. Therefore, the concentration of the liquid fertilizer to be carried out varies with time. In addition, the spray nozzles and pipes of the spray truck are clogged, which may cause an unexpected trouble.

Instead of the slit, a hole such as a round hole or a long hole having substantially the same filtration efficiency as the slit having the above width may be provided. However, in the case of the slit, the foreign matter caught on the screen can be expected to prevent clogging by rolling over the rod forming the screen in the circumferential direction in which the slit extends. In such a case, the slit is more preferable because it is inferior to the slit in such a clogging prevention effect.

The reason for using a rotary drum screen as the second solid-liquid separation device is as follows. The residue (solid matter) filtered by the drum-shaped screen plate 9s by the rotation is rotated by the rotation of the screen.
It becomes a rod-like solid extending in the axial direction of the screen, rolls around the screen, and removes the residue (solid contaminants) attached to the screen in order, without adding a complicated structure. It has a clogging prevention function. The operation is possible in a simple closed container, and the operation status can be observed through a transparent glass window while preventing odor diffusion. Because it can be sealed, it is easy to take measures to prevent odor diffusion. Automatic unmanned driving is possible without the need for manual operation during driving. Cleaning using liquid fertilizer can be easily performed. In addition, as long as it is a solid-liquid separation device having the above-described features, it is not necessarily required to be a rotary drum screen, and another type may be used.

(2) The obtained second filtrate is transferred to the next sand remover 19 via the filtrate transfer pipe 9o. In addition, the sand removing device 19 also receives the liquid discharged from the first dehydrating device 13 described later via the pipe 13a.

4. Sand remover, relay tank, and liquid fertilizer raw material storage tank (1) In sand remover 19, fine sand, silt, and the like that are not removed by second solid-liquid separator 9 during a residence time of about 5 minutes. , And the precipitate is removed. As a result, sedimentation and accumulation of these foreign substances are prevented in the pipeline, the storage tank, and the maturation tank in the subsequent steps.

(2) From the sand removal device 19, transfer line 1
The liquid fertilizer raw material liquid is once transferred to the relay tank 20 except for the case where the liquid can be transferred under natural flow to the liquid fertilizer raw material storage tank 21 or the mature tank 10 via 9o.

(3) Transfer pump 2 from relay tank 20
0p, the liquid fertilizer raw material is transferred to the liquid fertilizer raw material storage tank 21 or the maturation tank 10 via the transfer pipeline 20o.

(4) The liquid fertilizer raw material storage tank 21 is used when the receiving time interval of the waste liquid containing the organic matter such as animal manure is greatly unstable or when it cannot be received for a long time in winter in a heavy snowfall area. In order to ensure continuous operation of the treatment apparatus of the present invention, especially the maturation tank 10, the liquid fertilizer raw material to be supplied to the maturation tank 10 is stored and provided to have a function as a buffer. The liquid fertilizer raw material storage tank 21 is not required when the time interval for receiving waste liquid containing organic matter such as animal manure is small and stable. In addition,
When the liquid fertilizer raw material storage tank 21 is provided, during storage of the liquid fertilizer raw material for a long time, the inorganic solids and organic solids suspended in the liquid fertilizer raw material are settled and deposited, and the actual volume of the storage tank is reduced, As in the case of the liquid fertilizer storage tank 12, a liquid fertilizer raw material storage tank stirring device is provided in order to prevent a temporal variation in the component concentration of the liquid fertilizer raw material fed to the maturation tank 10. It is desirable to continuously stir the liquid fertilizer raw material from the start of acceptance.

In place of the liquid fertilizer raw material storage tank 21,
It is also conceivable to provide a storage tank serving as a buffer between the adjustment tank 6 and the second solid-liquid separation device. But,
In this case, sedimentation of unseparated contaminants such as fine paper fibers in the adjustment liquid is considered. If air stirring is performed to prevent this, the preliminary low-temperature fermentation reaction proceeds too much, and the Since the conditions for the aerobic high-temperature fermentation treatment are not prepared, liquid fertilization may not proceed well, or the quality of the liquid fertilizer may be deteriorated, which is not preferable.

In place of the liquid fertilizer raw material storage tank 21,
It is also conceivable to provide an untreated animal feces storage tank serving as a buffer before receiving into the first solid-liquid separation tank device 5. However, in this case, in the adjusting tank of the conventional human waste processing apparatus shown in FIG. Undesirably, sedimentation and sedimentation of contaminants having a high specific gravity occur.

(5) When the liquid fertilizer raw material storage tank 21 is installed, if necessary, the pump 21p and the transfer line 2
The liquid fertilizer raw material is transferred to the next maturation tank 10 via 1o.

4. About aerobic high-temperature fermentation treatment in a maturation tank (1) The maturation tank 10 includes a plurality of tanks, at least a first maturation tank 10a and a second maturation tank 10b provided in parallel with the first maturation tank 10a. The filtrate is introduced into either the first maturation tank 10a or the second maturation tank. Here, the liquid preliminarily fermented in the conditioning tank was aerated under aeration conditions of 25 to 50 mm ³ / BOD kg / day by a submerged aeration device under high temperature conditions of 50 to 80 ° C. Decomposition of organic matter by the action of degraded enzymes and increased microorganisms
The aerobic high-temperature fermentation treatment for further promoting the fermentation reaction is performed for a predetermined time (28 to 30 days).

(2) While the above-described aerobic high-temperature fermentation treatment is being performed, for example, in the first maturation tank 10a, the second filtrate is introduced into the other second maturation tank 10b.

(3) The defoaming machine 10df provided at the upper part of the maturation tank has a structure in which air blown into the liquid by the submerged aeration device 11 and carbon dioxide gas generated by fermentation become fine bubbles, and To form a bubble layer, so that the generated carbon dioxide gas is discharged from the maturation tank, and to promote the fermentation reaction, the bubbles are destroyed by rotating blades, and the gas in the maturation tank is passed through a suction fan (not shown). To an unillustrated soil deodorizer.

(4) Thermometer 10 provided in the maturation tank
The liquid temperature in the maturation tank is measured by t, and whether or not the temperature is favorable for high-temperature fermentation as described above is managed. When the liquid temperature does not reach the lower limit temperature of 50 ° C., the organic matter concentration of the organic matter-containing wastewater such as untreated animal excrement may be increased, but usually the temperature rise due to the progress of the fermentation reaction is large, and the liquid temperature is increased. It does not mean that the lower limit temperature does not reach 50 ° C., and therefore, it is not necessary to take measures such as the concentration increase as described above. In addition, the liquid temperature is set to the upper limit temperature 8
When the temperature is likely to exceed 0 ° C., the operation is controlled by adjusting the operation / stop time of the submerged aeration apparatus 11 to suppress the temperature rise due to the fermentation reaction.

5. Regarding the storage of liquid fertilizer and the application of liquid fertilizer in the liquid fertilizer storage tank, (1) The liquid fertilizer produced in the mature tank as described above is transferred to the liquid fertilizer storage tank 12 by the transfer pump 10p and stored there. In a stationary state, there is a slight sedimentation of inorganic components from the liquid fertilizer during storage, and when this deposits, the effective actual volume of the storage tank is reduced, and the concentration of the liquid fertilizer to be carried out varies with time. In order to prevent such a phenomenon, the liquid fertilizer is stirred by the air-injection type liquid fertilizer storage tank stirrer 18 from the time when the liquid fertilizer is carried into the storage tank, and the components of the entire liquid fertilizer in the storage tank are constantly kept uniform, and the components are gradually changed over time. The stable supply of liquid fertilizer without any variation is achieved.

(2) The liquid fertilizer in the liquid fertilizer storage tank 12 is sprayed through the suction pipe 30p, the hose joint 30j, the hose 31 of the spraying car 32, and the suction pump (not shown) of the spraying car 32 as necessary. It is loaded into the tank 32, transported to the field 33, and sprayed by a spraying device (not shown) of a spraying truck.

6. Composting of the separated fine paper fibers (1) The paper fibers mainly composed of organic matter separated by the second solid-liquid separation device 9 composed of the rotary drum screen are solidified by the solid-liquid separation device. The first dewatering device 13 composed of a screw press connected to the material discharge side dewaters the water to a predetermined moisture content (about 60%) suitable for composting.

(2) The above-mentioned fibrous dehydrated solids are transferred by the case conveyor 13cv to, for example, the fibrous solids storage 14 comprising an indoor solids storage and temporarily stored therein.

(3) The stored fibrous solids are sent to a compost manufacturing plant, where they are appropriately turned over, while maintaining appropriate contact with the atmosphere, and in the liquid contained in the fibrous solids. Is fermented by digestive enzymes left in the animal feces contained in the above, enzymes and aerobic microorganisms added as the enzyme preparation, and organic matter is decomposed into compost. Non-fermentable solids such as rubber and plastics are separated from the fibrous solids as the compost material by the first solid-liquid separation device 5 and are not mixed therein. Etc. become uniform throughout, and uniform fermentation is performed, resulting in high quality compost.

7. Treatment of Low Specific Gravity Coarse Solid Separated by First Solid-Liquid Separation Device (1) The third solid-liquid separated solid-liquid separation device 5 comprising the rotary drum type screen The flammable coarse solids having a small specific gravity, such as rubber, plastic, and cloth, sent to the solid-liquid separator 15 have a width of 1 to 3 mm.
The solid-liquid separation is performed again using a screen plate 15s having a large number of slits (typically 2 mm) or a large number of round holes or long holes having substantially the same filtration efficiency.

In the third solid-liquid separation device 15 described above,
The reason why a screen plate having a large number of slits having a width of 1 to 3 mm or a large number of holes having substantially the same filtration efficiency is used is as follows.

When the slit width is less than 1 mm, the filtration speed is reduced and the processing efficiency is deteriorated. If it exceeds 3 mm, non-thick contaminants such as vinyl and small-diameter granular inorganic substances pass through the screen much, flow into the adjustment tank together with the filtrate, and further flow from the adjustment tank to the second solid-liquid. This is because it is brought to the separation device, where it is separated together with the paper fibers and mixed into the compost material, and the possibility of causing local inhibition of the compost fermentation and deterioration of the compost quality is increased.

Instead of the slit, a round hole or a long hole having substantially the same filtration efficiency as the slit having the above width may be provided. However, in the case of the slit, the foreign matter caught on the screen can be expected to prevent clogging by rolling over the rod forming the screen in the circumferential direction in which the slit extends. In such a case, the slit is inferior to the slit in terms of such a clogging prevention effect. Therefore, the slit is more preferable.

The reason why a rotary drum type screen is used as the third solid-liquid separation device 5 is the same as in the case of the second solid-liquid separation device 9.

(2) The separated combustible solids are subjected to a second dehydration unit 16 comprising a screw press connected to the solids discharge port of the rotary drum screen 15 to a predetermined water content (about 60%) and the transport cart 16b
Is transported to the incinerator 17 where it is incinerated.

The configuration and operation of the embodiment of the present invention and the method of the present invention using the present invention have been described specifically with reference to FIGS. 1 and 2. The method is not limited to the above-described embodiment, and it goes without saying that other configurations are included in the present invention without departing from the spirit of the configurations.

For example, in the above embodiment, an example has been described in which the maturation tank 10 is composed of two tanks, a first maturation tank 10a and a second maturation tank 10b, which are installed in parallel.
However, this maturation tank 10 is composed of four tanks, three of which are sequentially shifted by 10 days to start the aerobic high-temperature fermentation treatment, and rotate the aerobic high-temperature fermentation treatment for 30 days each. The liquid fertilizer raw material is stored in another tank by the start of the next aerobic high-temperature fermentation treatment. If the period is set to be 10 days, the continuous operation of the processing apparatus according to the present invention can be more efficiently performed. Operation becomes possible, and there is an effect that processing capacity is improved.

In the example of the apparatus of the present invention shown in FIGS. 1 and 2, the incinerator 17 is provided from the outlet side of the second dehydrator 16.
Although the transporting trolley was used as the transporting means 16b for combustible solid matter reaching the above, a continuous transporting device such as a belt conveyor or a case conveyor may be used instead. In this case,
There is an effect that it is easy to automate and unmanned the work of transporting and putting the combustible solids into the incinerator.

Further, in the above-described embodiment of the present invention, the air-blowing agitating device 18 is used as the agitating device for the stored liquid fertilizer in the liquid fertilizer storage tank 12. However, according to the study of the present inventors, the following disadvantages are found. It was found to have

(1) Nozzle header 18 for discharging air
The solids around c can be rolled up to expect a stirring effect, but the distance between the nozzle header and the adjacent nozzle header is large, resulting in poor stirring. (2) Since the nozzle header 18c is fixed, there is a portion that becomes a dead space for stirring. This dead space sediment will always accumulate. (3) In order to increase the stirring effect, it is necessary to arrange a large number of nozzle headers 18c to increase the air blowing flow rate, and to install a blower or a compressor having a large capacity, and to operate it. Costs are high.

It is recommended to use a liquid fertilizer storage tank stirrer having a structure as shown in FIGS. 3 to 11, for example, instead of the above-described air blow stirrer 18.

FIG. 3 is a side view showing the overall configuration of another embodiment of the liquid fertilizer storage tank stirring device in the device of the present invention, which is different from that shown in FIG.

The liquid fertilizer storage tank stirring device of the present invention shown in FIG.
Storage tank side wall 12s on the upper surface of bottom wall 12bw of liquid fertilizer storage tank 12
a predetermined distance L ₀ or more, for example, L =
The bottom vertical bearing means 50 fixed at a position L ₀ + α away from the center of the storage tank, preferably directly below the manhole 12 mh of the storage lid 12 l, and the liquid level LS in the storage tank 12 , Preferably the manhole 12
mh, at a position directly above the bottom vertical bearing means 50 at a position above the height of the bottom vertical bearing means 50.
For example, an upper vertical bearing means (support guide) 51 supported and fixed on the upper part of a support post 51sp standing upright facing the edge of the manhole 12mh, and the bottom bottom vertical bearing means 50, for example. A support 52 made of a square steel pipe rotatably supported by 360 °, and a lower end of the support 52, and an intermediate portion supported by the upper vertical bearing means (support guide) 51, and the upper vertical bearing means of the support 52. (Support
A guide 53 that is supported to be able to move up and down to a position below the supported portion by the guide 51, and that is not rotatable relative to the column 52.
ax is a horizontal direction, or a rotation driving means 54 composed of a submerged type motor fixed so as to be in a slightly downward direction,
A submerged propeller 55 connected and supported at the tip of the rotation shaft 54ax of the rotation driving means 54, and a rotation shaft 5 of the submerged rotation driving means 54 fixed to the upper end of the support post 52
Horizontal boom 56 extending in the same horizontal direction as the direction of 4ax
A chain guide 57tg formed of a fixed pulley or sprocket provided at least at the front end portion between the front end portion and the rear end portion of the horizontal boom 56, a chain guide 57eg provided at the rear end portion, One end is fixed to the chain take-up means 58 comprising a winch provided at a position above the upper bearing means 52 of 52 and the upper end of the elevating platform 53 and / or the submerged rotary drive means 54. , The chain guide means 57tg, 57
After being wound around the eg, the other end is wound around the chain winding means 58 and fixed, and a hanging / raising / lowering chain 59 and a position above the upper bearing means 51 of the support post 52. At a position corresponding to the upper end of the support post 51sp of the upper bearing means 51,
A rotation fixing ring 63 fixed horizontally to the support post 52 and provided with notches 63n at predetermined angular intervals on the outer periphery, and a notch 63n of the rotation fixing ring 63 attached to the upper end of the support post 51sp via a pin. It is basically configured to include a column rotation prevention means 62 including a rotation fixing stopper 64 which can be freely fitted and removed.

Further, before the submerged propeller unit 55 collides with the upper surface of the storage tank bottom wall 12b slightly above the bottom end of the column 52 in FIG. 3, the lowering of the elevating platform unit 53 is stopped, and the propeller unit is stopped. A guide stopper 61 is mounted as a safety device to prevent breakage of the device.

In the above description and FIG. 3, the predetermined distance L ₀ represents the horizontal distance from the axis of the support 52 to the tip of the propeller section 55. L (= L ₀ + α) represents the horizontal distance from the axis to the closest point on the inner surface of the storage tank side wall 12sw. α is a positive constant.
When the column 52 is rotated so that the propeller 4 and the submerged type propeller 55 come to a position that is horizontally rotated by 180 ° from the direction shown in FIG. 3, the distal end of the submerged type propeller 55 is attached to the inner surface of the storage tank side wall 12sw. It means a margin value added to the above L ₀ in order to obtain a sufficient distance L not to touch.

In addition to the above basic configuration, the embodiment of the liquid fertilizer storage tank stirring device of the present invention further has the following specific configuration.

FIGS. 4A and 4B show an example of the structure of the bottom vertical bearing means 50, wherein FIG. 4A is a plan view and FIG.
FIG. 5A and 5B show an example of the configuration of the upper vertical bearing means 51, wherein FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a sectional view taken along line BB of FIG. FIG.
5A shows a configuration example of a lower portion of the support column 52, FIG. 5A is a front view, and FIG. 5B is a cross-sectional view of FIG. FIG.
FIG. 8 is an assembly view when the lower part of the column 52 of FIG. 6 is supported by the bottom vertical bearing means 50 of FIG. 4 and the upper vertical bearing means 51 of FIG. It is the side view seen from. FIG. 8 shows a lifting platform 53 of FIG. 3, a submerged motor 54 and a propeller 55 mounted and fixed thereto.
2A is a plan view, and FIG.
9A is a plan view, FIG. 9B is a front view, and FIG. 9C is a side view showing the configuration of the rotation fixed disk 63 of the column 52 in FIG. FIG. 10 shows a rotation fixing stopper 5 of the column 52 of FIG.
4 (a) is a plan view, and FIG. 4 (b) is an elevational view, showing the entire structure of the apparatus 4 and the operation of a column rotation prevention means 65 composed of the rotation fixed stopper 64 and the rotation fixed disk 63. FIG.
FIG. 1A is a plan view and FIG. 3B is an elevation view showing the entire configuration of the rotation fixing stopper of the column shown in FIG.

The bottom vertical bearing means 50 shown in FIG. 4 is composed of a base plate 50 bp, a lower support tube 50 l having an inner diameter D _{50 b} and having a bottom end fixed to the upper surface of the base plate.
p and a middle flange 5 concentrically fixed to the upper end of the lower support tube and having a guide hole 50gh having a diameter D _{50m at} the center.
0mf, and a guide tube 50up having an inner diameter _D50u concentrically fixed to the upper surface of the middle flange. As shown in FIG. 3, the base plate 50bp is fixed to the storage tank by an anchor bolt (not shown). It is fixed to the position on the upper surface of the bottom wall 12bw.

[0090] The upper bearing unit 51 shown in FIG. 5, base - and scan plates 51 bp, mounted at right angles to the upper end of the base plate, a support arm 51sa having a guide hole 51gh inner diameter D ₅₁ to the distal end, the support arm A guide tube 51gp fixed to the lower surface of the support arm concentrically with the guide hole and having the same inner diameter as the guide hole, a reinforcing plate 51ip attached to the base plate and a corner perpendicular to the support arm; , And as shown in FIG.
In the vicinity of the upper end of the support post 51sp standing upright on the edge of the manhole 12mh of the lid 12l of the storage tank,
The base plate 51 b
p is fixed.

The lower part of the column 52 shown in FIG. 6 includes (b): a column main body 52m made of a square steel pipe as shown in a sectional view, a bottom plate 52bp fixed to the bottom end of the column main body, and a lower surface of the bottom plate. the strut body and is concentrically fixed, and a height H _52b, a round bar 52b of the outer diameter D _52b on.

By the bottom vertical bearing means 50 and the upper bearing means 51 constructed as described above, the column 52 is supported so as to be able to rotate 360 ° horizontally as shown in the assembly drawing of FIG.

That is, the outer diameter D _52b of the round bar 52b at the bottom end of the column 52 in FIG. 6 is equal to the guide hole 50gh at the center of the middle flange 50mf of the bottom vertical bearing means 50 in FIG.
It is configured to be slightly smaller than the inner diameter _{D52m of} . The inner diameter D _50u of the upper guide tube 50up bottom bearing means 50 shown in FIG. 4, it is configured to slightly larger than the diagonal outside width D _52m corner steel pipe shown in FIG. 6 (b) I have. Further, the height H of the round bar 52b
_52b is configured to be higher than the height H _50b from the base plate 50bp of the upper surface in FIG. 4 to the upper surface of the intermediate flange 50 mF. Then, the round bar 52b is inserted through the guide hole 50gh until the tip of the round bar 52r contacts the upper surface of the base plate 50bp in FIG. Has been inserted. For this reason, on the upper surface of the base plate 50bp of the bottom bearing means 50, the total weight of the column 52 and other components constituting the stirring device of the present invention attached to the column is supported.

The upper bearing means 51 shown in FIG.
Guide arm 51sa guide hole 51gh and guide tube 5
The inner diameter D ₅₁ of the 1gp is configured to slightly larger than the diagonal outside width D _52m corner steel pipe shown in Figure 6 (b). For this reason, the upper part of the support 52 is inserted through the upper bearing means 51, whereby the corner of the support is guided to the upper bearing means 51 to such an extent that the support 52 does not touch the side much.

As described above, the bottom surface of the round bar 52b at the bottom end of the column 52 is the upper surface of the base plate 50bp of the bottom bearing means 50, and the side surface of the round bar 52b is the middle flange 50mf of the bottom bearing means 50. Guide hole 50gh
The upper corners of the support 52 made of a square steel pipe are supported and guided by the guide hole 51gh of the upper bearing means 51 and the inner surface of the guide tube 51gp, respectively, so that the support 52 stands substantially upright and has a large lateral contact. It is supported so as to be able to rotate 360 ° horizontally.

The lifting platform 53 shown in FIG. 8 has two side plates 53sp sandwiching a column main body 52m made of a square steel pipe from both sides.
A front plate 53fp interposed and fixed to the front ends of the two side plates on the side of the submerged motor 54, and the support body 52m sandwiched from the front and rear at right angles to the two side plates 53sp, Four connection bolts 53b provided at the upper and lower ends of the two side plates 53sp, nuts 53n respectively fitted to the connection bolts 53b, and connection bolts 53b between the two side plates. And a pipe 53 bp for limiting the distance between the two side plates to a predetermined size, and the outer surface of a column main body 52 m made of the square steel pipe is slidably mounted vertically.

In the center of the front surface of the front plate 53fp of the elevating platform 53, a through hole is provided at the center of the front end in the vertical direction, and the front end surface is in contact with the rear end surface of the submerged motor 54. A vertical plate 53tp for fixing and supporting the rear end of the submerged motor 54 is attached. A pair of clamp plates 54cp are provided on the rear end surface of the submerged motor so as to sandwich the vertical plate 53tp from both sides, and a through hole provided in the clamp plate 54cp and the vertical plate 53cp. Fixing bolt 54b penetrating through a 53 tp through hole
And the fixed nut 54n,
Are fixed and supported at the front end of the elevating platform 53.

A shackle 53hs for connecting the tip of the suspension chain 59 is provided at the upper end of the vertical plate 53tp of the lift table 53, and the suspension shackle 53hs is also provided on the upper surface of the front end of the submerged motor 54. A ring 54 hr for connecting the distal end of the chain 59 is attached to each.

The rotation fixing ring 63 shown in FIG.
Each of the pair of semi-disks 63l and 63r has a plurality of notches 63n provided at predetermined angles on the outer peripheral edge, and left and right half provided with connection bolt holes 63ch of left and right semi-disks provided at both ends of the diameter edge. The disc connecting metal fitting 63c, the rectangular recess 63d provided at the center of the diameter edge and sandwiching the support main body 52m made of the square steel pipe from both sides, and each of the semi-discs 63l and 63r provided at one long edge of the recess 63 are provided. And a fixing bracket 63f having a bolt hole 63fh for fixing the column main body 52m made of the square steel pipe at a predetermined position. Then, a connecting bolt (not shown) is passed through a connecting bolt hole 63ch of the left and right semi-disk connecting bracket 63c, and a connecting nut is screwed into the connecting bolt, thereby screwing the left and right semi-disks 63l and 63r.
Are linked. Further, as shown in FIG. 3, through a bolt hole 63fh provided in each fixing bracket 63f of the left and right semi-disk coupling metal fitting 63c, a fixing bolt (not shown) is used to fix the column main body 52m made of the square steel pipe to a predetermined position as shown in FIG. The rotation fixing ring 63 is attached.

A rotation fixing stopper 64 shown in FIG. 10 includes a pair of stopper main body support fittings 64a attached to the upper end surface of the support / fixation post 51sp of the upper bearing means 51 and each having a horizontal through hole for a pin. A stopper body 64m having a horizontal through hole for a pin at the base, a pin 64p for rotatably attaching the stopper body to the pair of stopper body support brackets 64a, and the stopper fixed to the rotation as shown by a solid line in the figure. An upright bolt 64 is provided which can be adjusted to an upper end to support the lower surface of the stopper body in a state in which the upper surface of the stopper 63 is fitted to one of the notches 63n.

As shown by the solid line in FIG. 10, when the stopper main body 64m falls down in a substantially horizontal state on the rotation fixing ring 63 side and is fitted in one of the notches 63n, the angle is The rotation of the rotation fixing ring fixed to the column body 52m made of a steel pipe is prevented, and as a result, the column body 5
Rotation of 2 m is prevented.

As shown by the dashed line in FIG. 10, when the stopper body 64m is in a state of being substantially horizontally inclined to the side opposite to the rotation fixing ring 63 side, the support body 52m
Can freely rotate horizontally together with the rotation fixing ring 63.

The operation of the embodiment of the liquid fertilizer storage tank stirrer of the apparatus of the present invention configured as described above will be described with reference to FIGS.
This will be described below with reference to FIG.

1. During the normal stirring operation (1) The winch 58 is rewound to operate the elevator 53
Is lowered until it hits the guide stopper 61 at the lower end of the column 52. With the support horizontal rotation handle 60, the support 52 is rotated horizontally so that the propeller rotation axis is directed in a predetermined direction, the stopper main body 64m of the rotation fixing stopper 64 is turned down to the support side, and a number of notches in the rotation fixing ring 63 are formed. To prevent rotation of the column during stirring in the predetermined direction.

(2) By rotating the submerged motor 54,
The jet generated by the submerged propeller unit 55 that is rotated and driven thereby efficiently entrains the inorganic substances that settle and accumulate at the bottom of the liquid fertilizer storage tank 12, and the jet collides with the inner surface of the storage tank side wall 12sw on the extension of the propeller rotation axis, As an ascending flow, the entrained inorganic substances are lifted and diffused uniformly in the liquid fertilizer. The purpose of stirring by the present stirring device is achieved only by stirring the bottom of the storage tank in this way, but if necessary according to the shape and size of the storage tank, the winch 58 is wound or unwound. The position of the propeller 55 in the height direction may be adjusted. The submerged rotary drive 5
If the rotating shafts of the propeller unit 4 and the submerged type propeller unit 55 are mounted slightly downward from the horizontal, a stirring flow is generated as if washing the bottom of the liquid fertilizer storage tank, so that the effect of reliably preventing sedimentation and accumulation of inorganic substances can be expected.

(3) After the predetermined direction is agitated for a predetermined time as described above, the stopper body 64m is tilted to the opposite side to the column 52 to release the column rotation preventing means 65, and then the column horizontal rotation handle 60 is turned off. Then, the column 52 is rotated horizontally so that the propeller rotation axis is directed in another predetermined direction, and the stopper main body 64m of the rotation fixing stopper 64 is again tilted to the column side, and one of the notches 63n of the rotation fixing ring 63 is cut. And the column 5 being stirred in the another predetermined direction.
2 is prevented from rotating. In addition, in order to obtain uniform stirring, the column 52 is gradually rotated in a certain rotation direction so that the notches 63n of the rotation-fixed disk face the rotation-fixing stopper one by one. → Fixing → Fixing release → Rotation → ──── may be repeated.

2. Inspection, repair, replacement, etc. of the submerged motor and the propeller section (1) After stopping the stirring operation, the winch 58 is wound up, and the lifting platform 53, the submerged motor 54, and the propeller section 55 are at least It is configured so that it can be raised above the surface, preferably above the manhole 12mh of the storage tank lid 12l, and performs inspection, repair, replacement, etc. of the submerged motor and the propeller section.

(2) After the inspection, repair, replacement, etc., the winch 58 is rewound again to lower the lifting platform 53, the liquid motor 54 and the propeller 55, and agitate at a predetermined position. Restart operation.

One embodiment of the liquid fertilizer storage tank stirring device of the present invention is configured as shown in FIGS. 3 to 10 above, but the configuration is not limited to this, and various modifications are conceivable.

For example, in FIG.
Although the submerged type motor 54 and the propeller unit 55 mounted on the unit are one set, the present invention is not limited to this, and two or more sets may be used. Further, two or more sets of the stirring device shown in FIG. 3 may be provided in the liquid fertilizer storage tank 12.

In addition, the lift 53 is moved up and down by the winch 58, but the invention is not limited to this. Lifting is performed by holding one end of the chain 59 by hand.
The fixing to the predetermined elevating position may be performed, for example, by hooking a link of the chain 59 on a downward hook 65 provided on the upper portion of the support post 52 instead of a winch, as shown in FIG. Further, instead of the chain guide 57 composed of a fixed pulley or a sprocket as described in the above 3, the ring 57r may be fixed only to the distal end portion of the horizontal boom 56 to guide the chain, as shown in FIG. Good. Further, a lifting drive motor with a brake and a speed reducer (not shown) may be connected to the winch 58 so that the winch 58 can be lifted and lowered by remote control. May be automatically repeated between the upper and lower limit positions.

Further, in the example shown in FIG. 3, the tip of the horizontal rotation handle 60 is gripped and operated by hand, so that the column 52 is rotated horizontally.
Alternatively, the following may be performed. That is, although not shown, the driven gear may be fixed to the column 52, and the driving gear that meshes with the driven gear may be connected to a brake and a drive motor with a reduction gear so as to be rotated by remote control. Further, the rotation may be performed intermittently by a predetermined angle by a rotation control device (not shown) in which a mounting program is pre-installed, or may be continuously rotated at a slow speed.

In the above example, the column main body 52m is made of a square steel pipe, and the elevating platform 53 is configured so as to sandwich this square steel pipe from four sides.
Although the relative horizontal rotation between m and the lifting platform 53 is not possible, the present invention is not limited to this. For example, as shown in FIG. 12A: an elevation view and FIG. 12B: a plan sectional view taken along the line DD in FIG.
Or a circular pipe 70m provided with a plurality of splines 70s, and the elevating platform 53 includes a pair of left and right half cylinders 71l, 71r having one or a plurality of vertical grooves 71s fitted into the splines 70s. A connecting flange 71f, which is provided on both side edges in the diametric direction of the cylinder so as to extend vertically, is connected with a connecting bolt 71b and a nut 71n to form a cylindrical elevating platform 53, which is vertically movable and supports You may comprise so that the relative horizontal rotation between the main-body 52m and the raising / lowering stand part 53 cannot be performed.

Further, a stirring device having the same structure as the liquid fertilizer storage tank stirring device shown in FIG. 3 may be provided in the relay tank 20 and the liquid fertilizer raw material storage tank 21 shown in FIG. In this case, a good stirring effect without dead space can be expected in the same manner as in the case of the liquid fertilizer storage tank stirring device, as compared with the above-mentioned air blowing type stirring device, and the sedimentation and accumulation of suspended inorganic and organic solid components are prevented. Since the actual volume of each tank is reduced and the variation of the liquid components of the liquid fertilizer raw material fed to the maturation tank 10 with time is prevented, a liquid fertilizer with less variation of the components with time is obtained as a result. There is.

[0115]

The method and apparatus for treating organic matter-containing waste liquid according to the present invention can be applied to animal manure such as livestock manure and human excrement, as well as rubber, plastics, cloths, and other large contaminants such as metal pieces and gravel. In the treatment of an organic matter-containing waste liquid containing fine organic impurities mainly composed of paper fibers, the coarse impurities are separated and recovered in a first solid-liquid separation step / apparatus, and the second solid-liquid separation step is performed. In the liquid separation process / apparatus, the fine organic contaminants are separated and recovered, and each of them can be separately subjected to post-treatment such as incineration or composting. It has excellent effects as described.

(1) Low-specific-gravity coarse solids such as rubber, vinyl, (plastics) cloth, etc. on the night soil liquid surface in the adjusting tank, which were required when a conventional night soil processing apparatus was used. Post-treatment such as scraping of the floating material layer and incineration and reclamation of the scraped solids eliminates the need for manual unsanitary work, reducing the load on workers and saving labor and labor for processing equipment operation personnel. Becomes possible.

(2) Coarse impurities that cannot be fermented do not mix into fine organic impurities mainly composed of paper fibers, which are compost materials, and the components, air permeability and nutrition of the compost materials are eliminated. The balance and the like become uniform throughout, and uniform fermentation is performed, so that it is possible to produce high-quality compost.

(3) Almost no fine inorganic impurities are mixed in the liquid fertilizer raw material liquid, the quality of the liquid fertilizer is reduced, the actual volume of the storage tank is reduced due to the sedimentation and accumulation of the inorganic impurities in the liquid fertilizer storage tank, It is possible to prevent clogging of inorganic contaminants in nozzles and pipes of the liquid fertilizer spraying device.

(4) Separation, dehydration, and incineration of flammable coarse solids such as rubber, plastic, and cloth can be performed very easily.

Further, in the apparatus for treating an organic matter-containing waste liquid according to the present invention, a stirrer is provided in the liquid fertilizer storage tank, so that the actual volume of the storage tank is reduced by sedimentation and accumulation of inorganic substances in the liquid fertilizer, and the liquid fertilizer component pumped out of the storage tank is reduced. This also has an effect that the variation with time can be prevented. .

[Brief description of the drawings]

FIG. 1 is a flow sheet / configuration diagram showing the configuration of the first half of an embodiment of a method and an apparatus of the present invention.

FIG. 2 is a flow sheet / configuration diagram showing the configuration of the latter half of the embodiment of the method and the apparatus of the present invention.

FIG. 3 is a schematic diagram showing the overall configuration of another embodiment of the liquid fertilizer stirring device of the present invention.

4 (a) is a plan view, FIG. 4 (b) is a front view, and FIG. 3 (c) shows an example of the configuration of the bottom vertical bearing means shown in FIG.
It is AA sectional drawing of (a).

5 (a) is a plan view, FIG. 5 (b) is a front view, and FIG. 3 (c) shows an example of the configuration of the upper vertical bearing means shown in FIG.
It is BB sectional drawing of (a).

6A is a plan view, and FIG. 6B is a cross-sectional view taken along the line CC of FIG. 3A, showing an example of the configuration of the lower portion of the support shown in FIG.

FIG. 7 is an assembly diagram (FIG. 3) when the lower bearing of FIG. 6 is supported by the bottom bearing of FIG. 4 and the upper bearing of FIG.
(A side view as viewed from the side of arrow a).

8 (a) is a plan view, and FIG. 8 (b) is an elevation view showing the configuration of the lifting platform of FIG. 3 and the submerged motor and the propeller mounted and fixed thereto.

9A is a plan view, FIG. 9B is a front view, and FIG. 9C is a side view showing the configuration of the rotation fixed disk of the column shown in FIG.

10 (a) is a plan view, and FIG. 10 (b) is an elevation view showing the entire configuration of the rotation fixing stopper of the column shown in FIG.

11 is an elevational view showing another example of a means for fixing one end of a chain instead of the winch 58 of FIG. 3; FIG.

12 (a) is an elevation view, and (b) is a plan sectional view taken along the line DD of FIG.

FIG. 13 is a flow sheet and configuration diagram showing the configuration of a conventional human waste processing apparatus.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 Pumping truck 2 Hose 3 Cam lock type hose joint 4 Receiving pipeline 5 Closed pressurized first solid-liquid separator 5a Primary chamber 5b Secondary chamber 5s Screen plate 6 Adjustment tank 7 Enzyme preparation addition device 8 Tank stirrer 9 Second solid-liquid separator (rotary drum screen) 9s screen plate 10 Mature tank 11 Submerged aeration device 12 Liquid fertilizer storage tank 13 First dehydrator (screw press) 14 Fiber-based solid matter storage means (indoor) Solid-liquid storage place) 15 Third solid-liquid separator (rotary drum screen) 16 Second dehydrator (Screw press) 16b Combustible solid transporting means (Transportation trolley) 17 Incinerator 18 Air-blowing liquid fertilizer storage tank stirring Apparatus 19 Sand remover 20 Relay tank 21 Liquid fertilizer raw material storage tank 30p Liquid fertilizer suction pipe 30j Hose joint 31 Hose 32 Spreader 33 Field 50 Lower vertical bearing means 51 Upper vertical bearing means (support guide) 52 Column 53 Elevating platform 54 Liquid rotary drive (liquid motor) 55 Liquid propeller 56 Horizontal boom 57 Chain guide ( (Fixed pulley or sprocket) 58 Chain winding means (winch) 59 Chain 60 Horizontal rotation driving means 61 Guide stopper 62 Post rotation prevention means 63 Rotation fixed disk 64 Rotation fixed stopper 65 Downward hook

Claims (6)

[Claims] 1. An enzyme preparation containing at least lipase, cellulase and protease is added in an amount of 0.01 to 0.05% by weight based on an organic matter-containing waste liquid such as untreated animal manure. After performing solid-liquid separation treatment to separate the solid matter in the organic matter-containing waste liquid, the obtained filtrate is 25 to 50%.
Aeration conditions of Nm ³ / BOD kg / day and 50-80
In a method for treating an organic-containing waste liquid that is subjected to aerobic high-temperature fermentation under a high-temperature condition of ° C. to form a weakly basic liquid fertilizer, a rubber, After separating coarse solid components (mainly inorganic substances) such as plastics, cloths, other metal pieces, and gravel, the enzyme preparation is added to the obtained first filtrate, and at room temperature or higher, 50 ° C or higher. Causing a preliminary fermentation reaction at a low temperature of less than 2. Then, in a second solid-liquid separation step, a fine paper mainly composed of organic matter not removed from the first filtrate in the first solid-liquid separation step The fibers are separated, the obtained second filtrate is made into a weakly basic liquid fertilizer by the aerobic high-temperature fermentation treatment, and the fine paper fibers mainly composed of organic matter separated in the second step are separated. After dehydration treatment to the specified moisture content, spontaneous generation in air Method of treating an organic substance-containing waste liquid, characterized in that formed between the allowed to compost. 2. In the first solid-liquid separation step, a large number of round holes having a diameter of 6 to 8 mm are provided for separating coarse solid components such as rubber, plastic, cloth, other metal pieces, and gravel. In the second solid-liquid separation step, the screen plate is used to separate fine paper fibers mainly composed of organic substances that have not been removed in the first solid-liquid separation step. The method for treating an organic matter-containing waste liquid according to claim 1, wherein a screen plate having a large number of 1.5 mm slits or a large number of holes having substantially the same filtration efficiency is used. 3. In the third solid-liquid separation step, the first solid-liquid separation step
The specific gravity of the rubber, plastic, cloth, etc. separated in the solid-liquid separation step is smaller than that of the liquid component, accepts flammable coarse solids, and further performs solid-liquid separation. After dehydration treatment to the moisture content of
3. The method for treating an organic matter-containing waste liquid according to claim 1, wherein the waste liquid is incinerated. 4. In the third solid-liquid separation step, a width 1
4. The method for treating an organic matter-containing waste liquid according to claim 3, wherein a screen plate having a large number of slits having a diameter of about 3 mm or a large number of holes having substantially the same filtration efficiency is used. 5. An apparatus for treating an organic matter-containing waste liquid, comprising: directly receiving untreated animal-containing waste liquid such as animal excrement from a pumping truck via a hose and a pipe; A first solid-liquid separator for separating coarse solid components such as metal pieces and gravel; a regulating tank for receiving and storing a filtrate of the first solid-liquid separator; and adding an enzyme preparation to the regulating tank. An enzyme preparation addition device; an adjustment tank stirring device for stirring the filtrate in the adjustment tank; and an enzyme solution added thereto, which receives the adjustment liquid in the adjustment tank preliminarily fermented at a low temperature and receives the first solution. A second solid-liquid separator for separating fine paper fibers mainly composed of organic matter that has not been removed by the solid-liquid separator, and a filter for receiving and storing the filtrate of the second solid-liquid separator. A maturation tank comprising a plurality of tanks for performing a high-temperature fermentation treatment; A liquid aeration device for aerating the filtrate in the maturation tank; a liquid manure storage tank for receiving and storing the liquid manure obtained in the maturation tank; a liquid manure storage stirrer for stirring the stored liquid manure in the liquid manure storage tank; A first dehydrator for dehydrating fine paper fibers mainly composed of organic matter separated by the solid-liquid separator to a predetermined moisture content, and receiving the paper fibers dehydrated from the first dehydrator. A fibrous solid storage means for storing as a compost raw material; and a rubber, plastic, cloth, etc., separated by the first solid-liquid separation device, which receives a coarse, combustible solid having a small specific gravity and further solidifies. A third solid-liquid separator for performing liquid separation, a second dehydrator for receiving flammable solids from the third solid-liquid separator and performing dehydration to a predetermined moisture content; Receiving flammable solids from the dehydrator via transportation means Te, organic substance-containing waste liquid of the processing apparatus characterized in that it comprises a incinerator, a incinerating it. 6. The screen plate of the first solid-liquid separator has a large number of round holes having a diameter of 6 to 8 mm, and the screen plate of the second solid-liquid separator has a width of 0 mm. A large number of slits having a filtration efficiency of approximately 1.5 to 1.5 mm or a plurality of holes having a filtration efficiency substantially equivalent to the number of slits are set to a width of 1 mm.
The apparatus for treating an organic matter-containing waste liquid according to claim 5, further comprising a plurality of slits each having a diameter of about 3 mm or a plurality of holes having substantially the same filtration efficiency.