JPH11314081A - Apparatus and method for treating generated soil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce treatment cost by treating generated soil with high water content to enable the reutilization thereof in a generated soil treatment apparatus. SOLUTION: Cement F, water glass G and hydrochloric acid H are added to a dehydrated cake E to be mixed therewith under stirring by a stirring mixer 37 and the internal substance in the stirring mixer is divided and granulated by a disintegrating granulator 38 to form a granular material I. At this time, the addition amt. of hydrochloric acid H is adjusted on the basis of the moisture content of the dehydrated cake E measured by a moisture content measuring device 51 and the pH of the cake measured by a pH measuring device 50 by a control unit 50 to control a reaction speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to soil generated with a large amount of water generated during construction work such as tunnel excavation work or dredging, for example, construction sludge such as mud, construction soil such as residual soil and dredged soil. The present invention relates to an apparatus and a method for treating generated soil.

[0002]

2. Description of the Related Art FIG. 4 schematically shows the steps of a conventional soil treatment.

In the conventional excavated soil treatment processing, as shown in FIG. 4, in a primary treatment system 101, a construction site, for example,
The construction sludge 102 generated at the tunnel excavation work site by the shield excavator is separated into a gravel component (particle size> 74 μm) 104 by a classifier 103 and transported to a secondary treatment device 111 by a pump 105. This secondary processing device 111
Then, a coagulant 113 is added to the construction sludge 106 from which the gravel component 104 has been separated by the coagulant addition device 112 and dewatered by the dehydrator 114, whereby a dewatered cake of the clay silt component (particle size ≦ 74 μm) is obtained. 115 is generated. The gravel component 104 separated in the primary treatment system 101 is reused as a backfill material or the like, and the dehydrated cake 115 generated in the secondary treatment device 111 is transported to a treatment plant as industrial waste and disposed of. .

[0004]

As described above, in the conventional construction sludge treatment apparatus, although the gravel component 104 in the primary treatment system 101 is reused as a backfill material, the dewatering in the secondary treatment apparatus 111 is performed. Cake 115 is disposed of as industrial waste. In a tunnel excavation work site using a shield excavator, bentonite (clay) is added in order to impart fluidity to muddy water and mud and ensure stability of the face. Therefore, the dehydrated cake 115 is a slurry containing this bentonite and cannot be reused as a backfill material or the like. In this case, the transportation cost of transporting the dehydrated cake 115 to the industrial waste disposal site and the cost of the disposal itself become enormous, causing a problem that the overall construction cost increases, and a shortage of the final disposal site and an illegal It is a social problem such as dumping.

The present invention has been made to solve such a problem, and a generated soil treatment apparatus and a generated soil treatment method which reduce the processing cost by treating the generated soil with high water content and making it reusable. The purpose is to provide.

[0006]

According to a first aspect of the present invention, there is provided a generated soil treatment apparatus for measuring the water content of a high water content generated soil, comprising: A solidifying agent adding device for adding a solidifying agent to the high water content soil; a water absorbing agent adding device for adding a water absorbing agent to the high water content soil; and a neutralizing agent for adding a neutralizing agent to the high water content soil. An agent adding device, a stirring mixer for stirring and mixing the high water content generated soil to which the solidifying agent, the water absorbing agent and the neutralizing agent are added, and separating the internal substance of the high water content generated by stirring and mixing. A crushing granulator that produces a granular body by causing
An addition amount adjusting device for adjusting the amount of the neutralizing agent added by the neutralizing agent adding device based on the amount of water measured by the water amount measuring device.

Further, according to a second aspect of the present invention, there is provided a soil treatment apparatus for measuring a pH value of a high water content soil carried in.
A measuring device, a solidifying agent adding device for adding a solidifying agent to the high water content soil, a water absorbing agent adding device for adding a water absorbing agent to the high water content soil, and a neutralizing agent for the high water content soil. A mixing agent that stirs and mixes the generated high water content soil to which the solidifying agent, the water absorbing agent and the neutralizing agent are added, A disintegrating granulator that generates granules by dividing and granulating the internal substance, and adjusting the amount of the neutralizing agent added by the neutralizing agent adding device based on the pH value measured by the pH measuring device. And a device for adjusting the amount of addition.

[0008] The generated soil treatment apparatus according to a third aspect of the present invention is a water content measuring apparatus for measuring the water content of the high water content generated soil carried in, and a pH value for measuring the pH value of the high water content generated soil. A measuring device, a solidifying agent adding device for adding a solidifying agent to the high water content soil, a water absorbing agent adding device for adding a water absorbing agent to the high water content soil, and a neutralizing agent for the high water content soil. A mixing agent that stirs and mixes the generated high water content soil to which the solidifying agent, the water absorbing agent and the neutralizing agent are added, A crushing and granulating machine that generates granules by dividing and granulating the internal substance, and neutralization by the neutralizing agent adding device based on the water content and the pH value of the carried-in high-moisture generated soil. And an addition amount adjusting device for adjusting the addition amount of the agent. .

[0010] The generated soil treatment apparatus according to a fourth aspect of the present invention is the deodorizing apparatus according to the first to third aspects, wherein at least a sealed container for hermetically sealing the stirring mixer and a deodorizing device which inhales air from the closed container to deodorize. It is provided with.

[0010] The generated soil treatment apparatus according to a fifth aspect of the present invention is the apparatus according to the fourth aspect, wherein at least the air treated by the stirring and deodorizing apparatus is returned into the system.

[0012] In a sixth aspect of the present invention, in the generated soil treatment apparatus, the deodorizing apparatus is a gas combustion type deodorizing apparatus.

Further, according to the method of the present invention for treating the generated soil, the debris component is removed from the high water content soil generated by the muddy excavation, and then a coagulant is added thereto to perform a dehydration treatment to form a dewatered cake. And then adding a solidifying agent and a water-absorbing agent to the dewatered cake, and adding the neutralizing agent to the dewatered cake based on at least one of the measured values of the water content and the pH value of the dewatered cake. It is characterized in that it is added in a controlled manner, and the mixture is stirred and mixed, and the internal substance is divided into particles to form granules.

Incidentally, the generated soil referred to in the present invention has the meaning normally used by construction and civil engineering engineers, that is, “Technical Manual for Construction Generated Earth Utilization” edited by the Japan Civil Engineering Research Center (issued in July 1994). Includes construction-generated soil, such as general construction-generated soil and dredged soil, as well as construction sludge, such as mud.

Similarly, the water-absorbing agent includes water glass, silicates such as sodium silicate, and organic water-absorbing agents such as water-absorbing polymers and monomers, which function to remove water contained in the generated soil.

The solidifying agent is a solidifying agent which solidifies the fine particles of the soil in the generated soil into particles of an appropriate size, and specifically refers to a hydraulic hardening agent such as a cement type, a lime type, and a gypsum type.

The coagulant is for coagulating fine particles in the generated soil, specifically, polyaluminum chloride (PAC).
A coagulant such as aluminum or aluminum sulfate is used.

The dispersant prevents the particles from becoming unnecessarily large, and a dispersant such as sodium carbonate or a sodium nitrofemate analog is used.

The neutralizing agent adjusts the pH of the treated granular material which tends to be basic, and an acid such as carbonic acid or hydrochloric acid is effective. It is effective to use a liquid as the neutralizing agent before the granulation, and it is sufficient to neutralize only the particle surface after the granulation. It is more effective to use a small amount even if the amount is small.

[0019]

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic diagram showing a control process of a generated soil treatment apparatus according to one embodiment of the present invention, FIG. 2 is a schematic diagram showing a process of the generated soil treatment device of the present embodiment, and FIG. An outline is shown.

The generated soil treatment apparatus of the present embodiment is for treating construction sludge discharged by a muddy shield excavator. As shown in FIG. Processing system 11 and the primary processing system 1
Secondary treatment system 21 that generates dewatered cake E by adding coagulant D to construction sludge C treated in 1 and performing dehydration treatment
And a tertiary treatment system 31 in which the dehydrated cake E is made into a granular material F.
It is composed of

The primary treatment system 11 includes a classifier 12 for separating the gravel component (particle size> 74 μm) B from the construction sludge A generated at the construction site, and a secondary sludge C for separating and removing the gravel component B. A pump 13 for transporting to the processing system 21 is provided. In addition, the secondary treatment system 21 uses a pump 22 to supply the coagulant D to the construction sludge C transported from the primary treatment system 11.
And a dehydrator 2 that dewaters the construction sludge C to which the coagulant D has been added to produce a dewatered cake E of a clay silt component (particle size ≦ 74 μm).
4 are provided.

As shown in FIGS. 2 and 3, the tertiary treatment system 31 has a screw conveyor 32 for transporting the dewatered cake E treated in the secondary treatment system 21, and a dispersant J And a dispersant adding device 40 for adding cement F as a solidifying agent (4 to 10 of sodium silicate).
Solidifying agent adding device 33, and water glass (which may be sodium silicate powder) G as a water absorbing agent is added (water content of 5%).
１５15%), a neutralizer adding device 35 for adding hydrochloric acid H as a neutralizing agent (70% or less of sodium silicate, but depending on the use), cement F and water glass A dewatering cake E to which G and hydrochloric acid H are added is driven by a driving motor 36 to stir and mix, and a dewatering cake E driven and driven and mixed by a driving motor 41 to separate the internal substances of the dewatered cake E into particles. A crusher-granulator 38 that generates the granular material I by making the granular material I, and a conveyor 39 that transports the generated granular material I are provided. The amounts of the solidifying agent and the water-absorbing agent may be different from the above depending on the use of the material to be treated after treatment and the properties of the fine particles of the material to be treated.

The construction sludge treatment apparatus of the present embodiment
As shown in FIG. 1, a control device 50 is provided as an addition amount adjusting device for adjusting the addition amount of hydrochloric acid H according to the water content and the pH value of the dehydrated cake E.

That is, the tertiary treatment system 31 includes a water content measuring device (for example, a gamma ray sensor) 51 for measuring the water content of the dewatered cake E carried into the screw conveyor 32,
A pH measuring device 52 for measuring the pH value of the dehydrated cake E is provided, and the measurement result is output to the control device 50. In addition, a flow adjusting valve 33a, 34a, 35 is provided in the water glass adding device 34 and the neutralizing agent adding device 35 as a solidifying agent adding device 33 and a water absorbing agent adding device, respectively.
a is attached, and the control device 50 controls the flow control valves 33a, 33a in accordance with the water content and the pH value of the dewatered cake E.
By controlling the opening and closing of the a and 35a, the respective addition amounts of the cement F, the water glass G, and the hydrochloric acid H can be adjusted.

The control device 50 is capable of adjusting the drive motor 36 of the stirring mixer 37 and the drive motor 41 of the crushing granulator 38.

Therefore, the construction sludge A generated at the tunnel excavation site by the muddy shield excavator contains clay such as bentonite. The construction sludge A is sent to the primary treatment system 11 and is classified by the classifier 12. Gravel component (particle size>
74 μm) B is separated and removed, and sent to the secondary treatment system 21 as construction sludge C. In the secondary treatment system 21, the coagulant D is added from the coagulant adding device 23 to the construction sludge C, and then mechanically dewatered by the dehydrator 24, and a dewatered cake composed of a clay silt component (particle size ≦ 74 μm) E is generated and sent to the tertiary processing system 31. The dewatered cake E has a specific gravity of 1.4 to 1.6, a fine particle component of 74 μm or less 100%, and a water content of about 40 to 55%.

In the tertiary treatment system 31, the dewatered cake E is conveyed into the stirring mixer 37 by the screw conveyor 32. At this time, cement F is first added to the dewatered cake E by the solidifying agent adding device 33. Then, the water glass G is added by the water glass adding device 34, and finally, hydrochloric acid H is added by the neutralizing agent adding device 35. The stirring mixer 37 stirs and mixes the dehydrated cake E to which the cement F, the water glass G, and the hydrochloric acid H are added until the additives are evenly distributed. At this time, the reaction between the cement F and the water glass G causes The fine particles of bentonite in the dewatered cake E bind each other and absorb water to form a gel. Then, the gelled dehydrated cake E is charged from the stirring mixer 37 into the crushing granulator 38, where the substance inside is separated,
The particles I are formed into particles, and the conveyer 3
9 and carried out of the apparatus.

That is, by adding the cement F to the dewatered cake E, the pH of the water in the dewatered cake E fluctuates, whereby the water glass G forms a silicate gel between the fine particles in the dewatered cake E, At the same time, the free water in the dehydrated cake E is taken in and gelled. As a result, the viscosity of the dewatered cake E increases, and the granulation can be performed by the crushing granulator 38. Also, under conditions that do not result in a plastic state, such as a high water content of the dewatered cake E, the granulation can be similarly made granulated by making the configuration of the crushing granulator 38 an extrusion molding type. The cement F has hydraulic properties, is mixed inside the granular material I, reacts with moisture and the like taken in, and forms a hydrate within several hours to several days to be stably solidified. The fine particles in the dewatered cake E are hardened while being constrained by the water glass G, so that the fine particles are reduced in particle size.

Here, the granular material I corresponds to the first kind of soil in the soil quality classification, and can be applied to backfilling, embankment, and the like. Specifically, it satisfies the following. -Particle size: 10% or less of fine particles of 74 µm or less, maximum particle size: 13 mm or less-Compacted ground support force: CBR 10% or more (relative comparison standard with crushed stone roadbed)-The specified harmful substance is contained in wastewater at a standard concentration or more Absent. However, there are some differences depending on the application places and local governments.

When the construction sludge is treated, the water content measuring device 51 measures the water content of the dewatered cake E treated in the secondary treatment system 21 and the pH measuring device 52.
Measures the pH value and outputs the measurement result to the control device 50. Then, the control device 50 adjusts and controls the respective addition amounts of the cement F, the water glass G, and the hydrochloric acid H based on the measurement results of the water content and the pH value. Hereinafter, this adjustment method will be specifically described. In the present embodiment, at the start of the treatment, the addition amounts of the cement F, the water glass G, and the hydrochloric acid H are the reference addition amounts set in advance.

For example, when the amount of water is larger than the amount of fine particles of the dewatered cake E, the amount of the water glass G that restrains the space between the fine particles is increased because the distance between the fine particles is wide. Then, the addition amount of the cement F to be reacted is increased in accordance with the increase in the addition amount of the water glass G.

When the amount of water in the dewatered cake E is simply increased, the viscosity of gelation is lowered even if fine particles can be dispersed, and granulation becomes difficult. Therefore, the added amount of the cement F is increased. . Then, since the alkalinity increases with an increase in the addition amount of the cement F, the addition amount of the hydrochloric acid H is increased.
On the other hand, when the water content of the dewatered cake E decreases, the viscosity of gelation increases and mixing becomes difficult, so that the addition amounts of the cement F, the water glass G, and the hydrochloric acid H are reduced.

Further, by adding hydrochloric acid H to the dehydrated cake E based on the pH value measured by the pH measuring device 52, the alkali is neutralized and the pH of the final granular material I is reduced.
Can be reduced. The pH can be controlled by the amount of addition, and operation control such as control of the reaction rate can be performed. -PH: 5.8 to 8.6 (standard for domestic wastewater)

That is, when the treatment speed of the dehydrated cake E is constant, when the pH value of the dehydrated cake E is high, the reaction rate is controlled by increasing the amount of hydrochloric acid H added. on the other hand,
When the pH value of the dehydrated cake E is low, the amount of hydrochloric acid H is reduced to control the reaction rate.

When the dehydrated cake E is processed at a high speed,
The reaction rate is controlled at a high speed by reducing the amount of hydrochloric acid H added, and a neutralization treatment is performed by blowing carbon dioxide gas or the like during the stirring and mixing of the dehydrated cake E or during the crushing and granulation. On the other hand, dehydrated cake E
When performing the low-speed treatment, the amount of hydrochloric acid H is increased to control the reaction rate to a low rate, and the neutralization treatment is performed.

Actually, the water content and the pH value of the dehydrated cake E which has been subjected to the primary treatment and the secondary treatment vary somewhat, and the respective processing times of the stirring and mixing treatment and the crushing and granulation treatment vary. Then, the first to third processes cannot be continuously and efficiently processed. Therefore, the reaction rate is controlled by increasing or decreasing the amount of hydrochloric acid H added to the dehydrated cake E. That is, even if the water content of the dewatered cake E varies, the processing time of the stirring and mixing process and the crushing and granulating process of the dewatered cake E are kept constant, so that the waiting time is eliminated and the dewatered cake E is removed. The processing time from the stirring and mixing processing to the crushing and granulating processing is kept constant, and the processing efficiency can be improved.

As described above, in the generated soil treatment apparatus of the present embodiment, the granular material I formed using the inorganic material is used.
Since it has strength and safety, it can be reused as high quality soil, such as backfill materials and embankment materials, as construction materials, and costs for disposal and disposal can be reduced. In this case, since the construction material composed of the granular material I is lightweight and has good water permeability, the construction material is most suitable as a playground, a soil for planting trees and an embankment of a cultivated land, and can also be used as a drainage drainage material for a landfill. it can. Further, by using the cement F and the water glass G as a particle-forming agent, the processing cost is reduced and the processing operation is facilitated.

That is, an inorganic hydraulic material such as cement F and a water glass G (sodium silicate) which is a safe inorganic material
The safety can be ensured by using a device that uses both.
Further, by absorbing water with the water glass G, it is possible to increase the viscosity required for dispersion granulation even for mud having a relatively high water content, and to restrict the fine particles to increase the granularity. Fine particulate components in it can be reduced. Furthermore, the processes such as drying and dehydration, which conventionally required cost and time in the process, are not required, and the granulation can be performed at low cost and with high efficiency.
The cement-based solidifying agent has two effects of a gelling agent for water glass G and a long-term strength development by hydration reaction.
At the same time, and simplification of the apparatus and cost reduction can be achieved. Further, by applying hydrochloric acid H as a neutralizing agent, the pH of the product can be reduced, and the reaction rate can be controlled by controlling the pH in the treatment process, so that the treatment can be controlled according to the target.

Further, in the generated soil treatment apparatus of the present embodiment, the amounts of cement F, water glass G and hydrochloric acid H are adjusted in accordance with the water content and the pH value of the dewatered cake E.
Appropriate granular material I can be generated, the reaction rate can be controlled, and mud treatment efficiency can be improved.

In the above-described embodiment, the construction sludge A discharged by the muddy shield excavator is treated. However, the construction sludge discharged by the earth pressure shield excavator can be treated. In case, primary processing system 1
The construction sludge may be directly carried into the tertiary treatment system 31 without the first and second treatment systems 21. This is because the specific gravity of the construction sludge discharged by the earth pressure type shield excavator is almost the same as the specific gravity of the dewatered cake E of 1.4 to 1.6.
This is because the water content is about 20 to 50% in mud containing m or stone and sand.

In the above-described embodiment, the control device 50 adjusts the amount of hydrochloric acid H added based on the water content measured by the water content measuring device 51 and the pH value measured by the pH measuring device 52. Adjust the addition amount only with the amount,
The addition amount may be adjusted only by the value.

In the above embodiment, the dewatered cake E
On the other hand, the water glass G was added after adding the cement F. However, it is easier to handle the mud by hardening the mud by adding the cement F first, and if the mud has a low moisture content, Alternatively, the cement F may be added after the water glass G is added.

Further, the stirring mixer 37 and the crushing granulator 38 are provided separately, but they may be processed continuously as a single unit.

Next, another embodiment of the present invention will be described.
In the present embodiment, the processing apparatus is suitable for treating dredged soil. In the apparatus of the present embodiment, the generated soil treatment apparatus according to each of the above embodiments is provided with a closed container and a deodorizing device, and at least the stirring mixer is airtightly covered with the closed container,
After the air from the closed container is sucked in by the deodorizing device and deodorized, the treated air is returned to the system. Dredged soil has a higher organic matter content than general construction soil, which leads to a bad smell during treatment. The dredged soil can be treated while suppressing the generation of offensive odor as much as possible with the apparatus of the present embodiment. In addition, as a deodorizing method, there are a method using activated carbon and a method of burning with gas. It is desirable to return to the device immediately before. Also, when using activated carbon, there is no particular advantage of utilizing a heat source, so it may be returned anywhere in the system,
In some cases, it may be released during standby without returning to the system.

[0047]

As described above in detail in the embodiment, according to the generated soil treatment apparatus of the first aspect of the present invention, the solidifying agent and the water absorbing agent are added to the high water content generated soil, so that the fine particles can be separated between the fine particles. Silicate gel is formed to restrain fine particles and to take in free water to cause gelation, which increases the viscosity of the high water content soil and facilitates granulation, and at this time, the water content of the high water content soil By adjusting the amount of the neutralizing agent added in accordance with the pH value and the pH value, appropriate granulation can be performed, and the processing speed can be controlled to improve the processing efficiency.
By reusing the generated soil with high water content, the processing cost can be reduced.

Further, according to the generated soil treatment apparatus of the present invention, by adding a solidifying agent and a water absorbing agent to the generated soil with high water content, a silicate gel is formed between the fine particles to restrain the fine particles and , Free water will be taken and gelled,
The viscosity of generated soil with high water content increases, making it easy to granulate,
At this time, by adjusting the amount of the neutralizing agent added according to the water content and the pH value of the generated soil with high water content, it is possible to appropriately granulate and control the processing speed to increase the efficiency of the processing efficiency. It is possible to reduce the treatment cost by reusing the generated soil with high water content.

Further, according to the generated soil treatment apparatus of the present invention, by adding a solidifying agent and a water-absorbing agent to the generated soil with high water content, a silicate gel is formed between the fine particles and the fine particles are restrained. , Free water will be taken and gelled,
The viscosity of generated soil with high water content increases, making it easy to granulate,
At this time, by adjusting the amount of the neutralizing agent added according to the water content and the pH value of the generated soil with high water content, it is possible to appropriately granulate and control the processing speed to increase the efficiency of the processing efficiency. It is possible to reduce the treatment cost by reusing the generated soil with high water content.

Further, according to the generated soil treatment apparatus of the present invention, even when treating the generated soil containing organic matter such as dredged soil, it is possible to prevent the generation of offensive odor, thereby maintaining the working environment and preventing pollution. It is also preferred.

Further, according to the generated soil treatment apparatus of the present invention, since the deodorized air is returned into the system, the above-mentioned effect is more excellent.

Further, according to the generated soil treatment apparatus of the present invention, the returned air is high-temperature air, and the water removal from the generated soil can be performed more effectively.

Further, according to the generated soil treatment method of the present invention, by adding a solidifying agent and a water-absorbing agent to the generated soil with high water content, a silicate gel is formed between the fine particles and the fine particles are restrained. , Free water will be taken and gelled,
The viscosity of generated soil with high water content increases, making it easy to granulate,
At this time, by adjusting the amount of the neutralizing agent added in accordance with the water content and the pH value of the generated soil with high water content, appropriate granulation can be performed, and the processing speed is controlled to improve the processing efficiency. Can be planned.

[Brief description of the drawings]

FIG. 1 is a schematic view illustrating a control process of a generated soil treatment apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating processing steps of a generated soil treatment apparatus of the present embodiment.

FIG. 3 is a schematic diagram illustrating a tertiary processing system.

FIG. 4 is a schematic view of a conventional soil treatment process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Primary treatment system 12 Classifier 21 Secondary treatment system 23 Coagulant addition device 24 Dehydrator 31 Tertiary treatment system 32 Screw conveyor 33 Solidifying agent addition device 34 Water glass addition device 35 Neutralizer addition device 37 Stirring mixer 38 Disintegration Granulator 39 Conveyor 51 Moisture content measuring device 52 pH measuring device A, C Construction sludge B Gravel component D Coagulant E Dewatering cake F Water glass (water absorbing agent) G Cement (solidifying agent) H Hydrochloric acid (neutralizing agent) I Granular material

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI E02F 7/00 E02F 7/00 D E21D 9/06 301 E21D 9/06 301U // C09K 103: 00 (72) Inventor Kazuo Mori Tsuyoshi 2-1-1, Aramachi-cho, Niihama, Takasago-shi, Hyogo Pref. In the Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd. Person Yoshihiro Oishi 2-1-1, Niihama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd.

Claims (7)

[Claims] 1. A water content measuring device for measuring the water content of a high water content soil, a solidifying agent adding device for adding a solidifying agent to the high water content soil, and a water absorbing agent for the high water content soil. A water-absorbing agent adding device to be added, a neutralizing agent adding device for adding a neutralizing agent to the high water-containing generated soil, and a high water-containing generated soil to which the solidifying agent, the water absorbing agent, and the neutralizing agent are added. An agitating mixer for agitating and mixing, a crushing and granulating machine for generating a granular body by dividing and granulating the internal substance of the generated soil with high water content agitated and mixed, and a water content measured by the water content measuring device. A generated soil treatment apparatus, comprising: an addition amount adjusting device that adjusts an addition amount of the neutralizing agent by the neutralizing agent adding device based on the amount. 2. A pH for measuring a pH value of a soil with high water content.
A measuring device, a solidifying agent adding device for adding a solidifying agent to the high water content soil, a water absorbing agent adding device for adding a water absorbing agent to the high water content soil, and a neutralizing agent for the high water content soil. A mixing agent that stirs and mixes the generated high water content soil to which the solidifying agent, the water absorbing agent and the neutralizing agent are added, A disintegrating granulator that generates granules by dividing and granulating the internal substance, and adjusting the amount of the neutralizing agent added by the neutralizing agent adding device based on the pH value measured by the pH measuring device. And a device for adjusting the amount of generated soil. 3. A water content measuring device for measuring the water content of the high water content soil, a pH measuring device for measuring the pH value of the high water content soil, and a solidifying agent added to the high water content soil. A solidifying agent adding device, a water absorbing agent adding device for adding a water absorbing agent to the high water generating soil, a neutralizing agent adding device for adding a neutralizing agent to the high water generating soil, the solidifying agent and the A stirrer and mixer for stirring and mixing the high water content soil to which the water absorbing agent and the neutralizing agent have been added; Crushing granulator, and an addition amount adjusting device for adjusting the amount of the neutralizing agent added by the neutralizing agent adding device based on the water content and the pH value of the carried-in high-moisture generated soil. A generated soil treatment apparatus characterized by the above-mentioned. 4. The generated soil treatment apparatus according to claim 1, further comprising a sealed container for sealing at least the stirring mixer, and a deodorizing device for taking in air from the sealed container and deodorizing the container. Generated soil treatment equipment. 5. The generated soil treatment apparatus according to claim 4, wherein the air treated by said deodorizing apparatus is returned into the system. 6. The generated soil treatment apparatus according to claim 5, wherein said deodorization apparatus is a gas combustion type deodorization apparatus. 7. Gravel and gravel components are removed from the high water content soil.
After adding a flocculant and performing a dehydration treatment to produce a dehydrated cake, a solidifying agent and a water absorbing agent are added to the dehydrated cake, and based on at least one of the water content and the pH value of the dehydrated cake. A method for treating generated soil, which comprises adding and adjusting the amount of a neutralizing agent added to the dewatered cake, adding and stirring the mixture, and stirring and mixing, and dividing and granulating the internal substance.