JP2003236590A - Sewage treatment method and apparatus for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sewage treatment method which can treat a large amount of excrement with a simple method and a simple apparatus and can manufacture compost by this treatment and a sewage treatment apparatus. <P>SOLUTION: Sewage H containing the solids emitted from domestic animals is sprayed to moisture control materials 1 deposited in a treating vessel 2 and the materials 1 and the sewage H are agitated by agitating means 4. The sewage H stored in the lower part of the treating vessel 2 is recovered and sprayed into the treating vessel 2. The agitating means 4 has a transfer function capable of transferring the mixture composed of the materials 1 and the sewage H and the compost is manufactured by transferring the mixture at a prescribed speed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a technical field of a sewage treatment method and sewage treatment apparatus for treating excrement excreted by livestock and the like.

[0002]

2. Description of the Related Art Conventionally, as a sewage treatment apparatus, for example, there is a septic tank used at home as described in JP 2001-121175 A. Such a septic tank is composed of a pretreatment tank for separating and filtering solid matters such as feces and removing them, a biological filtration tank, a treated water tank, a disinfection tank, etc., and the water purified in the final step is a septic tank. It is discharged more. Among these, the pretreatment tank is provided with an anaerobic filter bed tank first chamber and an anaerobic filter bed tank second chamber for separating and removing solid matters such as feces.

Further, as another sewage treatment apparatus, there is a septic tank for decomposing livestock manure or the like to produce fertilizer as described in JP-A-10-224137. This septic tank includes a first decomposition tank equipped with an air diffuser for generating water bubbles containing aerobic bacteria and generating fine bubbles, a second decomposition tank to which coarse-grained bubbles are supplied, and an aging concentration tank. The apparatus is such that the manure and urine sequentially flow through each tank while overflowing, and finally become liquid fertilizer, and the dehydrated components become fine-grain compost.

Further, as another sewage treatment apparatus, there is one described in JP-A-6-92765. This is to increase the mixing efficiency of the manure material and manure by injecting the manure into the agitating compost material while stirring the compost material put into the fermenter with a stirrer, and treat the manure by composting. is there. As a stirring device, a method in which a chain and a sprocket are driven by a motor, and the blades attached to the chain scrape up the compost material and drops it to the rear is shown.

As another sewage treatment device, as shown in FIG. 6, a separator 91, a septic tank 92, and a dehydrator 93.
And a composting machine 94. That is, sewage (raw water) 90 is put into a separator 91 such as a centrifugal separator to separate it into solid matter 91a and water 91b, and the separated sewage 91b is used in the next septic tank 92 (JP 2001-121175A).
No. gazette). The solid substance 92a separated in the septic tank 92 is further dehydrated by a dehydrator 93, and the solid substance 93a having a small amount of moisture is converted into a composting machine 94 (JP-A-6-
(As shown in Japanese Patent No. 92765) and processed as compost. Here, the solid matter 91a separated by the separator 91 is directly put into the composting machine 94 for processing. The water 93b removed by the dehydrator 93 is the septic tank 9
Returned to 2. Then, the purified water 92b purified in the septic tank 92 is discharged to a river or the like.

[0006]

Problems to be Solved by the Invention
In the sewage treatment apparatus as described in JP-A-121175, in order to separate the solid matter from the sewage in the pretreatment tank, 2
Two anaerobic filter beds are required, and this separation process is large and expensive. In addition, treatment of sludge accumulated in the pretreatment tank is also expensive, and as the scale of the livestock to be raised further increases, a large-scale or a large number of devices are required, and in such a large-scale sewage treatment device,
There is a problem that it is difficult to hire in terms of cost.

Further, the sewage treatment apparatus described in Japanese Patent Application Laid-Open No. 10-224137 has a limit in its treatment capacity because it is made into fertilizer by decomposition by bacteria in the purified water tank. Therefore, when the scale of the livestock to be raised becomes large, the treatment cannot catch up, and a larger or larger number of devices are required, and such a large-scale sewage treatment device has a problem that it is difficult to employ it in terms of cost.

Further, in the sewage treatment apparatus described in JP-A-6-92765, when the amount of excreted urine, especially water, is large, the relatively small parts such as the chains of the agitation device are significantly corroded by the sewage. Yes, the durability is lost. Therefore, there is a problem that a large amount of manure, especially manure containing a large amount of water, cannot be treated.

Further, the sewage treatment apparatus shown in FIG. 6 requires four types of machines, namely, a separator 91, a septic tank 92, a dehydrator 93, and a composting machine 94, and a large amount of sewage is treated. Like a processing plant,
In such a large-scale sewage treatment apparatus, there is a problem that it is difficult to use it in terms of cost.

The present invention has been made in consideration of the above problems, and provides a sewage treatment method capable of treating a large amount of manure with a simple method and capable of producing compost by this treatment. The task is to do.

It is another object of the present invention to provide a sewage treatment apparatus capable of treating a large amount of manure with a simple device and capable of producing compost by this treatment.

[0012]

Means for Solving the Problems In order to solve the aforementioned problems, the sewage treatment method according to the present invention employs the following means.

That is, according to the first aspect, sewage containing solid matter from livestock is sprinkled on the moisture conditioner accumulated in the treatment tank, and the moisture conditioner and the sewage are stirred by the stirring means, and
Sewage collected in the lower part of the treatment tank is sprayed into the treatment tank.

In this means, the sewage containing solid matter is sprinkled on the water content adjusting material in the treatment tank and agitated for treatment, and the sewage not mixed with the water content adjusting material is recovered and sprayed again on the water content adjusting material. It is processed. As a result, the wastewater is entirely treated inside the treatment tank without separating the solid matter and the water content.

According to a second aspect of the present invention, in the sewage treatment method according to the first aspect, the stirring means has a transfer function capable of transferring a mixture of the water content adjusting material and the sewage, and transfers the mixture at a predetermined speed. It is characterized by fermenting to produce compost.

In this means, the waste water is mixed with the water content adjusting material and transferred to be composted, and at the same time, a new water content adjusting material is introduced so that the waste water can be sprayed.

According to a third aspect of the present invention, in the sewage treatment method according to the second aspect, the treatment tank is divided into a spraying area in which sewage is sprayed and an aging area in which fermentation is aged without spraying sewage.
It is characterized in that the mixture in the spraying area is transferred to the aging area while stirring.

In this means, the mixture, which has been sufficiently sprinkled with sewage in the sprinkling area, is transferred to the aging area, and aging proceeds.

According to a fourth aspect of the present invention, in the wastewater treatment method according to the first aspect, at the same time that the mixture of the water content adjusting material and the wastewater is agitated by the agitation means, the agitation means is moved in the treatment tank to mix the mixture. It is characterized in that the fertilizer is fermented at almost the same position in the treatment tank to produce compost.

In this means, a large amount of sewage is sprinkled on the water content adjusting material at one time, the stirring means is moved in the treatment tank, the mixture is stirred at almost the same position in the treatment tank, and the compost is produced in batch type. To be done.

[0021] According to a fifth aspect, in the wastewater treatment method according to any one of the first to fourth aspects, the stirring means includes one or a plurality of screws, and the screws are rotated and moved in the treatment tank. It is characterized by performing agitation by stirring.

In this means, the screw provided above the processing tank is rotated and the screw is moved within the processing tank to stir and transfer the mixture.

Further, in order to solve the above-mentioned problems, the sewage treatment apparatus according to the present invention employs the following means.

That is, in claim 6, a treatment tank for depositing the moisture conditioner, a spraying device for spraying sewage containing solid matter from livestock, a stirring means for stirring the moisture conditioner and sewage, and a treatment tank. And a supply means for supplying the collected wastewater to the spraying device.

In this means, the sewage containing solid matter is sprinkled on the moisture adjusting material by the sprinkling device and agitated by the agitating means to be treated, and the sewage not mixed with the moisture adjusting material is recovered by the collecting means and again adjusted by the water. It is sprinkled on wood and processed. As a result, the wastewater is entirely treated inside the treatment tank without using a device for separating solid matter and moisture.

According to a seventh aspect of the present invention, in the wastewater treatment apparatus according to the sixth aspect, the treatment tank is divided into a spraying area for spraying the wastewater and an aging area for aging the fermentation without spraying the wastewater. And

By this means, wastewater is treated in the spraying zone and the transferred mixture is aged in the ripening zone.

[0028] According to claim 8, in the sewage treatment apparatus according to claim 6 or 7, the stirring means includes one or a plurality of screws, and is movably suspended above the treatment tank. Is characterized by.

In this means, the screw provided above the processing tank is rotated and the screw is moved to stir and transfer the mixture.

According to a ninth aspect, in the sewage treatment apparatus according to any of the sixth to eighth aspects, the collecting means collects a plurality of sewage channels provided on the bottom surface of the treatment tank and sewage in the plurality of sewage channels. It is characterized in that it consists of a collection tank that is put together.

With this means, the sewage collected on the bottom of the treatment tank flows into the sewage channel and is guided from the sewage channel to the recovery tank for recovery.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a sewage treatment method and an apparatus thereof according to the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment (1) of a sewage treatment method and apparatus therefor according to the present invention.

The sewage treatment apparatus 100 of this embodiment is
A treatment tank 2 in which a water content adjusting material 1 is deposited, a spraying device 3 for applying sewage H (manure) containing solid matter H1 discharged from livestock, and a stirring means for agitating and mixing the water content adjusting material 1 and the sewage H 4, a collecting means 5 for collecting the sewage H accumulated in the lower portion of the processing tank 2, and a supply means 6 for supplying the sewage H collected to the spraying device 3.

The treatment tank 2 is provided for treating sewage H and producing compost C, and is made of concrete or the like and has a height of about 1 m to 2 m and a length of several m to several tens m, or that. Side walls 21 and 22 on both sides extending above,
The bottom surface 23 and the water-conditioning material 1 are provided at both ends in the longitudinal direction.
And an outlet 25 for the compost C produced.

Upper surfaces 21 of the side walls 21 and 22 of the processing tank 2
Rails (not shown) that allow the stirring means 4 to move are provided on the a and 22a. A wastewater tank 7 is formed along the side wall 22 of the processing tank 2. The sewage tank 7 is charged with sewage H (manure) containing solid matter H1 discharged from livestock or the like from the outside. Note that normally, the composition of the sewage H emitted from livestock such as cattle and pigs is a solid matter H1 in which 80 to 90% is water consisting of urine and the remaining 10 to 20% is feces.

The water content adjusting material 1 is composed of bark (hulls), rice husks, sawdust, etc., and is a raw material that adsorbs manure and ferments the mixture M into compost C.

As shown in FIG. 2, in the treatment tank 2, the side of the inlet 24 into which the water content adjusting material 1 is fed is a spraying area 26 for spraying sewage, and the outlet 25 side of the compost C is for spraying sewage. Instead, the compost C is fermented and aged to be aged area 27 (where a fermenter is formed), and is divided at a predetermined ratio (for example, half). The ratio between the spraying area 26 and the ripening area 27 can be appropriately changed depending on the increase / decrease in the amount of treated sewage H, the type of compost produced, and the like.

The spraying device 3 is attached to the stirring means 4 on the upper part of the treatment tank 2 and has a substantially semi-circular tubular wastewater reservoir 31 for storing a predetermined amount of the wastewater H containing the solid matter H1 and the upper surface of the wastewater reservoir 31. In addition, a large number of outlets 32 are provided.
The sewage H is supplied from the supply means 6 to the sewage reservoir 31, and when it reaches a predetermined amount or more, the sewage H overflows from the sewage reservoir 31 and flows down from the outlet 32 into the treatment tank 2.

The stirring means 4 allows the stirring device 41 suspended above the processing tank 2 and the stirring device 41 to move freely in the vertical and horizontal directions (longitudinal direction and width direction of the processing tank 2) within the processing tank 2. It is mainly composed of a suspending moving device 45, and mixes the sewage H containing the solid matter H1 and the water content adjusting material 1 with stirring. Aerobic bacteria can be activated by stirring, and the stirring means 4 has a transfer function capable of transferring the mixture M of the water content adjusting material 1 and the sewage H.

The stirring device 41 comprises two screws 42.
And a motor 421 that drives the screw 42, and a reducer 4 that reduces the speed of the motor 421 and increases the drive torque.
22 is provided.

The screw 42 comprises two parallel rotating shafts 4
2a is installed so that the spiral blades 42b of each other enter. The speed reducer 422 divides the rotational force of the motor 421 into two, and the rotation shaft 4 of the two screws 42 is rotated.
2a is configured to rotate in opposite directions. It should be noted that the two screws 42 are arranged side by side in the direction toward the side walls 21 and 22.

The rotary shaft 42a of the screw 42 is
A drive device using a hydraulic cylinder (not shown) can adjust the angle of the rotation axis of the support pin 43 as a center, and the rotation shaft 42a of the two screws 42 has at least a forward direction in a plane passing through the rotation axis. It can be rotated 90 degrees in any direction. Then, as shown in FIG. 3, the screw 42 is tilted forward (to the left in FIG. 3) and rotated, and is moved forward, whereby the material in front is scraped up by the blades 42b, and the scraped material is indicated by a broken line. It falls backward as indicated by arrow T '. In other words, since the forward material is dropped while being dropped rearward, the inclined screw 42 has a material transfer function.

The number of screws 42 is not limited to two, and one screw or three or more screws can exert their functions. It should be noted that the stirring ability is increased according to the number of the screws 42, but there is also an increase in cost, and as a result of repeated experiments, it has been found that two are the most efficient.

The moving device 45 includes the stirring device 41 and the processing tank 2
And a width direction moving device 47 for moving the treatment tank 2 in the direction of the side walls 21 and 22.

The longitudinal movement device 46 has its wheels 461.
Is a frame 462 mounted on rails (not shown) of the upper surface portions 21a and 22a of the side walls 21 and 22 of the processing tank 2,
A motor 463 that drives wheels 461 and a frame 462
The work table 464 mounted on the work table 464 and a control panel 465 that can be operated by a worker on the work table 464 are configured.

The width direction moving device 47 is the arch frame 4 attached to the frame 462 of the longitudinal direction moving device 46.
71 is provided with a rail for moving in the width direction (not shown), and a frame 473 having wheels 472 provided thereon.
And a frame moving device 474 and the like. The frame moving device 474 is configured to drive the wire hung on the frame 473 by a motor.

The collecting means 5 is a means for collecting the sewage H when the sewage H applied to the moisture adjusting material 1 by the spraying device 3 reaches the bottom surface 23 of the processing tank 2 without being mixed with the moisture adjusting material 1. Yes, a plurality of longitudinal sewage channels 51 provided on the bottom surface 23, a plurality of widthwise sewage channels 52 connecting the longitudinal sewage channels 51, and one longitudinal sewage channel 51a extending to the outside of the treatment tank 2, A collection tank 53 that collects the waste water H in the plurality of waste water paths 51 and 52 by receiving the waste water H that flows in the longitudinal waste water path 51a, a pump 54 that pumps up the waste water H collected in the recovery tank 53 to the waste water tank 7, and Piping 55
It consists of

The supply means 6 is a suction pipe 6 extending to the dirty water tank 7.
1, a suction pump 62 attached to the moving device 45 of the stirring means 4 above the dirty water tank 7, and a supply pipe 63 for supplying the dirty water H sucked to the spraying device 3. The suction pump 62 is a switch provided on the control panel 465, and it can be selected to be interlocked with the operation of the stirring means 4 or to be operated or not operated independently of the operation of the stirring means 4.

Incidentally, the longitudinal sewage channel 51 of the collecting means 5,
Further, the width direction sewage channel 52 is provided with the blast pipe 8 having the air outlets 81 so that the mixture M of the water content adjusting material 1 and the sewage H can promote the fermentation and the high quality compost C can be produced. The blower pipe 8 has a structure in which air A is blown from blowers (not shown) provided on the side walls 21 and 22. Here, the width of the longitudinal wastewater passage 51 and the widthwise wastewater passage 52 is larger than the outer diameter of the blower pipe 8, and the wastewater H flows into the gap.

A roof of the building is provided above the processing tank 2 to prevent rainwater from entering, and the side wall of the building is opened to ensure air permeability to the outside air.

The sewage treatment method by the sewage treatment apparatus 100 described above will be described below.

First, the sewage tank 7 is charged with sewage H (manure) containing the solid matter H1 discharged from livestock. Also,
From the inlet 24 of the processing tank 2, the moisture adjusting material 1 such as bark
Is thrown in.

Then, the stirring means 4 is positioned in the spraying area 26 (see FIG. 2), and the spraying apparatus 3 is operated in the spraying area 26 to operate the stirring means 4 while spraying the dirty water H. At this time, while rotating the screw 42 of the stirring device 41 of the stirring means 4, the screw 42 is moved in the direction of the side wall 22 of the processing tank 2 as shown by the arrow S, and the side wall 22
When it reaches, move it forward appropriately (for example, 5
Move it by 0 cm), and move it in the direction of the side wall 21 in the opposite direction. Then, when the side wall 21 is reached, the stirring is performed in a zigzag manner such that it is appropriately advanced.

In this stirring operation, by tilting the screw 42 in the forward direction, as shown by the arrow T in FIG. 2, the mixture M of the scraped water content adjusting material 1 and the dirty water H is gradually aged in the aging area 27. Can be transferred to the side.

The amount of the sewage H that can be sprayed by the spraying device 3 depends on the amount of the water content adjusting material 1 that has been put into the treatment tank 2, but even if the sewage H is excessively sprayed, the sewage H will be stored in the treatment tank 2. Reaching the bottom surface 23, the grooves 51, 52 of the recovery means 5
Since it is returned to the sewage tank 7 by the pump 54 through the recovery tank 53, it is not necessary to care about the input amount of the sewage H.

In the chain-type stirring means shown in the conventional example, if the water content of the sewage H mixed with the water content adjusting material 1 is too high, it is easy to cause problems such as corrosion in fine components such as chains. It is necessary to pay attention to the input amount (moisture content) of the sewage H, but the screw 42 used in this embodiment has a simple structure and the blades 42b can be strong, so that the durability is improved even if the water content is increased. Property can be secured, and stirring work is not hindered.

Therefore, a large amount of sewage H can be treated by successively feeding the moisture adjusting material 1 from the feeding port 24. Further, since the sewage H containing the solid matter H1 can be sprayed, there is no need for a device for separating the solid matter H1 from the sewage H unlike the conventional septic tank or the separator 91 shown in FIG. Can be reduced. In addition, a filter is often used in a device for separating the solid matter H1 from the wastewater H, and this filter easily causes clogging, which requires time and effort for maintenance. However, in the present invention, the water content adjusting material 1 functions as a filter, and the filter is mixed with the dirty water H by the stirring means 4 to constantly form a new filter, so that a problem such as clogging does not occur.

The mixture M of the water content adjusting material 1 and the sewage H, which has been stirred in the spraying area 26 for a predetermined time, is transferred to the aging area 27 as indicated by an arrow T, and is stirred by the stirring means 4 in the aging area 27. Stirring is performed without spraying the dirty water H. Also,
Air is supplied to the mixture M from the blower pipes 8 provided in the grooves 51 and 52 of the bottom surface 23 of the treatment tank 2 to promote fermentation. In this fermentation process, in addition to the fermentation process performed by the microorganisms, the water content contained in the mixture M is also blown into the air by fermentation, and the wastewater treatment is also performed in the fermentation process. The stirring in the ripening area 27 may be performed about once a day, and good compost C is produced in about 20 to 30 days after the material is charged.

The sewage H that has been sprayed is used as compost C and does not discharge wastewater to the outside as in the conventional septic tank.
It does not pollute the surrounding environment such as rivers and groundwater, and because the stirring means 4 has a smaller amount of jumping into the air compared to the conventional method using a chain or the like, it is possible to reduce the generation of foul odors. It is a friendly sewage treatment device.

That is, since the sewage treatment apparatus 100 has a plurality of functions, when compared with the system shown in FIG. 6, there are four types of machines: a separator 91, a septic tank 92, a dehydrator 93, and a compost maker 94. Can replace In terms of cost, the sewage treatment apparatus 100 can be covered by the cost level of the composting machine 94 of the system shown in FIG. 6, and three expensive types of apparatus (separator 91, septic tank 9) are used.
2. The cost of the dehydrator 93) can be saved.

In the septic tank 92 in the system shown in FIG. 6, the BOD indicating the degree of contamination of sewage is 8,000,
Although the SS is limited to 16,000, in the wastewater treatment device 100, BOD24,000 and SS8 were experimentally determined.
It has been found that 10,000 wastewater can be treated. The degree of contamination of livestock manure is BOD16,000 in a mixed state of cow manure,
SS74,000, BOD2 in mixed pig manure
It is 4,000 and SS80,000 (according to data published by the Central Livestock Association), and the system shown in FIG. 6 requires a separator 91 that reduces the degree of fouling of the sewage injected into the septic tank 92 to a predetermined position. I understand.

For fermentation of compost with drying, 60 ° C.
It is necessary to maintain the above. However, the conventional stirring method using a chain (otherwise called a rotary type, there is also a method of rotating an impeller such as a water wheel to scoop up the compost material and fly it to the rear) is to skip the compost material. While the temperature is lowered by stirring,
The screw 42 of the agitating means 4 of this form hardly causes the mixture M to fly. Therefore, the temperature drop due to stirring is small, the fermentation temperature can be maintained even in winter in cold regions, and compost production by sewage treatment and fermentation can be performed all year round.

Incidentally, the longitudinal sewage channel 51 of the collecting means 5,
And, the compost C is gradually clogged in the widthwise sewage channel 52, but if it is cleaned about once a year, it will not hinder the collection of the sewage H and maintenance of the sewage treatment apparatus 100 will not be troublesome.

Further, the collecting means 5 is not limited to the above-mentioned form, and may be any structure capable of collecting the sewage H reaching the bottom surface 23 of the processing tank 2.

According to this embodiment, the sewage H containing the solid matter H1 is sprinkled on the water content adjusting material 1 in the treatment tank 2 and is stirred, and the waste water H not mixed with the water content adjusting material 1 is treated. Since the method is such that it is recovered and sprayed again on the water content adjusting material 1 to be treated, the wastewater H is entirely treated inside the treatment tank 2 without separating the solid matter H1 and moisture, and a large amount of manure is treated by a simple method. It becomes possible to do.

The sewage H containing the solid matter H1 is sprayed on the water content adjusting material 1 by the spraying device 3 and is agitated by the agitating means 4 to be treated, while the sewage water H not mixed with the water content adjusting material 1 is collected by the collecting means 5. The waste water H is treated in the treatment tank 2 without using a device for separating the solid matter H1 because it is a device that is collected and re-dispersed on the moisture conditioner 1 and treated. Can be processed.

The sewage H is mixed with the water content adjusting material 1 and transferred to be composted, and at the same time, the new water content adjusting material 1 is added.
Since the wastewater H is thrown in so that the wastewater H can be sprayed, the wastewater H is treated one after another, and compost is produced in accordance with this treatment.

FIG. 5 shows an embodiment (2) of the sewage treatment method and apparatus according to the present invention.

This sewage treatment method and its apparatus 200 are
The method of manufacturing compost is changed from that of the embodiment (1), and the method of treating sewage H itself is the same.

In this embodiment, the loading / unloading port 2 of the processing tank 2
After adding the water content adjusting material 1 from 8, the screw 42 of the agitating device 41 of the agitating means 4 is rotated vertically without tilting (state shown by the chain double-dashed line in FIG. 3) and is indicated by arrow S in FIG. While moving in zigzag, sewage H is sprinkled and stirred.

Since the mixture M scraped up by the screw 42 falls to almost the same position and the fermentation proceeds, the treatment tank 2 is not divided into the spraying area and the aging area as in the embodiment (1). The entire treatment tank 2 becomes a fermentation tank.

A large amount of the water content adjusting material 1 is charged so as to fill the treatment tank 2, and a large amount of waste water H can be sprayed at a time so as to correspond to the water content adjusting material 1. Therefore, a large amount of waste water H can be treated in a short time. It becomes possible to do. Of course, the sewage H that has reached the bottom surface 23 of the processing tank 2 is collected by the collecting means 5 and sprayed again.

After spraying a predetermined amount of dirty water H into the treatment tank 2, the spraying is stopped and only agitated at an appropriate frequency to ripen it as compost. Then, when the aging is completed, all the compost C in the treatment tank 2 is removed (compost is manufactured in a batch system), and a process of introducing a new moisture adjusting material 1 and spraying the sewage H is repeated.

In this embodiment, the processing tank 2 is not limited to a rectangular shape, and a circular processing tank (not shown) may be used as a stirring means of a type that rotates like a needle of a clock around one point. Is.

According to this embodiment, in addition to the operation and effect substantially similar to those of the above-mentioned embodiment (1), the function of inclining the screw 42 of the stirring means 4 can be omitted, so that the stirring is performed. The means 4 can be made inexpensive.

[0077]

As described above, in the sewage treatment method according to the first aspect of the present invention, sewage containing solid matter is sprinkled on the moisture conditioner in the treatment tank and stirred to be treated. The wastewater that was not mixed was collected and sprayed again on the moisture conditioner for treatment, so all wastewater was treated inside the treatment tank without separating solids and moisture, and a large amount of manure was collected using a simple method. The effect is that it can be processed.

Further, in the sewage treatment apparatus according to claim 6 of the present invention, sewage containing solid matter is sprinkled by the sprinkling device on the water content adjusting material and agitated by the agitating means to be treated, and is not mixed with the water content regulating material. Since the sewage that was collected was collected by the collection means and sprayed again to the moisture conditioner for treatment,
There is an effect that sewage is entirely treated inside the treatment tank without using a device for separating solid matter and water, and a large amount of excrement can be treated with a simple device.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment (1) of a sewage treatment method and an apparatus therefor according to the present invention.

2A and 2B show an embodiment (1) of a sewage treatment method and an apparatus therefor according to the present invention, (a) is a plan view and (b) is a side sectional view.

FIG. 3 is a front view of main components of an embodiment (1) of a sewage treatment method and an apparatus therefor according to the present invention.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 shows an embodiment (2) of a sewage treatment method and an apparatus therefor according to the present invention, (a) is a plan view and (b) is a side sectional view.

FIG. 6 is a configuration diagram showing a conventional wastewater treatment method and apparatus.

[Explanation of symbols]

1 Water conditioner 2 processing tanks 3 spraying devices 4 stirring means 5 collection means 6 supply means 7 dirty water tank 8 blast pipe 21 Side wall 21a Upper surface part 22 Side wall 22a upper surface 23 Bottom 24 slot 25 Exit 26 Scattering area 27 ripening area 28 Input / Exit 31 Sewage reservoir 32 Outlet 41 Stirrer 42 screw 42a rotating shaft 42b feather 43 Support pin 45 Moving device 46 Longitudinal movement device 47 width direction moving device 51 Longitudinal wastewater channel 51a Longitudinal wastewater channel 52 Width direction wastewater channel 53 collection tank 54 pumps 55 piping 61 suction tube 62 Suction pump 63 supply pipe 81 Air outlet 91 Separator 92 Septic tank 93 dehydrator 94 Composting machine 100 Sewage treatment equipment 421 motor 422 reducer 461 wheels 462 frames 463 motor 464 Workbench 465 control panel 471 arch frame 472 wheels 473 frames 474 frame moving device A air C compost M mixture H dirty water H1 solid

Claims (9)

[Claims] 1. A sewage containing solid matter from livestock is sprayed on the moisture conditioner accumulated in the treatment tank, and the moisture conditioner and the sewage are agitated by a stirring means, and the sewage collected in the lower part of the treatment tank is recovered. Then, the sewage treatment method of spraying in the treatment tank. 2. The sewage treatment method according to claim 1,
The agitation means has a transfer function capable of transferring a mixture of a water content adjusting material and sewage, and transfers the mixture at a predetermined rate to ferment it to produce compost. 3. The method for treating wastewater according to claim 2,
A method for treating wastewater, characterized in that the treatment tank is divided into a spraying area for spraying sewage and an aging area for aging fermentation without spraying sewage, and the mixture in the spraying area is transferred to the aging area while stirring. 4. The sewage treatment method according to claim 1,
At the same time as stirring the mixture of the water content adjusting material and the sewage by the stirring means, the stirring means is moved in the treatment tank, and the mixture is fermented at substantially the same position in the treatment tank to produce compost. Sewage treatment method. 5. The sewage treatment method according to any one of claims 1 to 4, wherein the stirring means includes one or a plurality of screws, and the screws are rotated and moved in a treatment tank to perform stirring. A sewage treatment method characterized by: 6. A treatment tank for depositing a moisture conditioner, and a spraying device for spraying sewage containing solid matter from livestock, etc.
A sewage treatment apparatus comprising: a stirring unit that stirs the water content adjusting material and sewage; a collection unit that collects the water accumulated in the lower part of the treatment tank; and a supply unit that supplies the collected sewage to the spraying device. 7. The sewage treatment apparatus according to claim 6,
A sewage treatment apparatus, characterized in that the treatment tank is divided into a spraying area for spraying sewage and an aging area for aging fermentation without spraying sewage. 8. The sewage treatment apparatus according to claim 6 or 7, wherein the stirring means comprises one or a plurality of screws and is movably suspended above the treatment tank. Processing equipment. 9. The sewage treatment apparatus according to any one of claims 6 to 8, wherein the recovery means comprises a plurality of sewage channels provided on the bottom surface of the treatment tank and a recovery tub for collecting sewage in the plurality of sewage channels. The sewage treatment device is characterized in that