JP7448075B1 - Complex system for processing and logistics of sludge-containing materials and processing and logistics method - Google Patents

Abstract

The present invention provides a complex system for processing and distributing sludge-containing materials and a processing and distributing method that can efficiently process and distribute sludge-containing materials such as sludge water generated at factory equipment and construction sites.
[Solution] At least one factory equipment and facility for receiving sludge-containing materials collected from a construction site, storage equipment for sludge-containing materials, classification equipment for classifying sludge-containing materials according to their properties, and a system for classifying sludge-containing materials according to their properties. A complex system for processing and distributing sludge-containing materials, and a complex system for processing and distributing sludge-containing materials, comprising an intermediate facility having a reaction facility for carrying out the reaction, and a shipping facility for shipping the supplies from the receiving facility and the intermediate facility as products according to their use. It's a method.
[Selection diagram] Figure 1

Description

The present disclosure relates to a complex system and method for processing and distributing sludge-containing materials.

Sludge water generated at various factories such as ready-mixed concrete factories and manufacturing factories for various products is treated as sludge, which is industrial waste, under the Waste Management Act, so after the necessary treatment, Generally, they are disposed of in managed disposal sites. In addition, surplus concrete is generated at various construction sites such as construction work and road construction where concrete is handled, but it cannot be disposed of at these construction sites. Therefore, it is usually returned to ready-mixed concrete plants as leftover concrete, and is disposed of after performing the necessary processing.

However, in recent years, problems have arisen, including difficulty in securing disposal sites and rising costs for disposal. In addition, there is growing interest in environmental protection and the effective use of resources, and studies are underway to reuse sludge-containing materials in order to reduce waste and convert it into valuable materials (for example, Patent Documents 1 and 2). Patent Document 1 proposes a method of separating and recovering supernatant water from collected sludge water. Patent Document 2 proposes a method in which sludge contained in fresh concrete sludge is carbonated, used as an adsorbent for carbon dioxide gas, and then reused as a cement mixture.

Japanese Patent Application Publication No. 2011-072947 Japanese Patent Application Publication No. 2021-138574

The present invention has been made in view of the above circumstances, and is a method for processing sludge-containing substances that can efficiently process and distribute sludge-containing substances such as sludge water generated at factory equipment and construction sites. and to provide a complex logistics system and processing and logistics method.

In order to solve the above problems, the present invention provides the following complex system for processing and distributing sludge-containing materials.
1. at least one factory facility and facility for receiving sludge-containing material recovered from a construction site;
storage equipment for sludge-containing materials;
intermediate equipment having classification equipment for classifying sludge-containing materials according to their properties; and reaction equipment for reacting sludge-containing materials;
shipping equipment that ships the supplies from the receiving equipment and the intermediate equipment as products according to their use;
A complex system for processing and logistics of sludge-containing materials.

Furthermore, the present invention provides the following combined system for treatment and distribution of sludge-containing materials as a preferred embodiment.
2. The combined system for processing and distributing a sludge-containing material according to 1 above, wherein the intermediate equipment further includes impurity removal equipment for removing impurities contained in the sludge-containing material.
3. The combined system for processing and distributing a sludge-containing material according to 1 above, wherein the intermediate facility further includes a solid-liquid separator.
4. The storage equipment includes a plurality of storage containers, and the plurality of sludge-containing material groups obtained by classifying the sludge-containing material received by the receiving equipment by the classification equipment are stored in one storage container for each sludge-containing material group. A complex system for processing and distributing a sludge-containing material according to 1 above.
5. a receiving transport means for collecting the sludge-containing material from the at least one factory equipment and construction site and transporting it to the receiving equipment; and a shipping transport means for transporting the product shipped from the shipping equipment to a supply destination. The combined system for processing and distributing sludge-containing material according to 1 above, comprising at least one means of transportation.
6. The receiving transportation means and the shipping transportation means are carried out by one means, and the one means transports the product shipped from the shipping facility to the supply destination, and the at least one factory facility and a complex system for processing and distributing a sludge-containing material according to 5 above, which transports at least one of the sludge-containing material and the gas used for the reaction from a construction site.
7. The use of the product in the shipping facility is at least one selected from carbonate raw materials, cement raw materials, solidifying material raw materials, paper manufacturing raw materials, resin raw materials, and rubber raw materials, and materials for concrete materials, mortar materials, and asphalt materials. A complex system for processing and distributing a sludge-containing material as described in 1 above, which is used for.
8. 2. The composite system for processing and distributing sludge-containing material according to 1 above, wherein the property of the sludge-containing material is at least one property selected from sludge concentration, impurity type, and calcium content in the sludge-containing material.

The present invention also provides the following method for treating and distributing sludge-containing materials.
9. receiving sludge-containing materials collected from at least one factory facility and construction site in a receiving facility; shipping the product in a shipping facility; and (i) to (vi) below;
(i) Storing the sludge in a storage facility (ii) Sorting the sludge content in a classification facility according to its properties (iii) Performing a reaction in a reaction facility (iv) Removing impurities in an impurity removal facility (v) ) performing solid-liquid separation in a solid-liquid separator (vi) performing at least one of the treatments and reactions of supplying to the shipping facility,
A method for processing and distributing a sludge-containing material, wherein the shipping facility is a facility for shipping products obtained by performing the treatment and reaction according to their use.

Furthermore, the present invention provides the following sludge-containing material treatment and distribution method as a preferred embodiment.
10. The sludge-containing material according to 9 above, wherein the sludge-containing material to be stored by storing the sludge-containing material in (i) is a sludge-containing material classified by classifying the sludge-containing material received at the receiving facility according to the classification in (ii) above. Methods of processing and distributing goods.
11. The method for treating and distributing a sludge-containing material according to the above item 10, wherein one of the following (a) to (c) is selected for the sludge-containing material to be stored by storing (i).
(a) The stored sludge-containing material is made into a product as it is and is shipped from the shipping facility.
(b) According to (v) above, the stored sludge-containing material is subjected to solid-liquid separation, and at least one of the obtained solid and liquid is made into a product and shipped from the shipping facility.
(c) According to (iii) above, the stored sludge-containing material and gas are reacted, and the resulting reaction product is made into a product and shipped from the shipping facility.

According to the present invention, there is provided a complex system and method for processing and distributing sludge-containing materials that can efficiently process and distributing sludge-containing materials such as sludge water generated at factory equipment and construction sites. can be provided.

FIG. 2 is a flow diagram showing a preferred embodiment of a complex system for processing and distributing sludge-containing materials according to the present embodiment.

Hereinafter, an embodiment of the present invention (hereinafter sometimes referred to as "this embodiment") will be described. The present invention is not limited to the following embodiments, and can be implemented with arbitrary changes within a range that does not impede the effects of the invention.

[Complex system for processing and logistics of sludge-containing materials]
The complex system for processing and logistics of sludge-containing materials according to this embodiment is as follows:
at least one factory facility and facility for receiving sludge-containing material recovered from a construction site;
storage equipment for sludge-containing materials;
intermediate equipment having classification equipment for classifying sludge-containing materials according to their properties; and reaction equipment for reacting sludge-containing materials;
A shipping facility is provided for shipping the supplies from the receiving facility and the intermediate facility as products for each purpose.

Among various factories such as ready-mixed concrete factories, cement factories, and product manufacturing factories, there are large-scale factories that can independently carry out the methods described in the above-mentioned patent documents, and there are also small- and medium-sized factories that cannot. That is, there are factories that cannot independently handle the treatment of sludge-containing materials using the methods described in the above-mentioned patent documents, and such factories always have problems with the treatment of sludge-containing materials. Moreover, since various construction sites such as construction work and road construction are temporary sites, it is not realistic to independently perform the method described in the above-mentioned patent documents.

Furthermore, even if there is a factory or site that is large enough to independently carry out the method described in the above patent document, the operating rate must be kept high at all times because the amount of sludge-containing substances such as sludge water is not constant. It is difficult. Furthermore, contrary to cases where it is difficult to maintain a high operating rate at all times, when the amount of sludge-containing substances such as sludge water increases, it is highly likely that the sludge-containing substances may not be able to be completely treated. Ru.

As described above, according to the techniques described in Patent Documents 1 and 2, it is possible to treat sludge-containing substances such as sludge water in various factories. However, in view of the properties of sludge-containing materials and the conditions of various factories and construction sites, it is necessary to improve not only the treatment of sludge-containing materials but also the overall system including the distribution of sludge-containing materials.

As a result of paying attention to the above-mentioned phenomenon, the present inventor thought that it would be possible to solve the problem by accepting sludge-containing materials discharged from factories of various sizes in bulk, subjecting them to various treatments, and distributing them. This is because if sludge-containing materials discharged from multiple factories are accepted all at once, it becomes easier to maintain a uniform operating rate to some extent. In addition, we have at least one receiving facility that accepts sludge-containing materials collected from factory equipment and construction sites in bulk, as well as shipping that ships the sludge-containing materials received at the receiving facility and those that have been subjected to various treatments as products according to their use. By having a configuration including equipment, it is possible to improve the efficiency of distribution of sludge-containing materials. By employing intermediate equipment having storage equipment, classification equipment, and reaction equipment that have predetermined functions, it is possible to improve the efficiency of processing the sludge-containing material. The storage equipment, classification equipment, and reaction equipment that the intermediate equipment has can cope with various situations even with just one equipment, so it is fully possible to improve the efficiency of processing of sludge-containing materials. In the system of this embodiment, by having these three facilities at the same time, it is possible to deal with even more various situations, so that the effect of improving the efficiency of processing of sludge-containing materials is exceptional.

According to the system of this embodiment, sludge-containing material is A complex system for processing and distributing sludge-containing materials and a processing and distributing method capable of efficiently processing and distributing sludge have been provided.

FIG. 1 is a flowchart showing a preferred embodiment of a complex system for processing and distributing sludge-containing materials according to the present embodiment. Hereinafter, the processing and distribution system and the processing and distribution method of this embodiment will be explained in order, starting with each piece of equipment included in the system of this embodiment, while also using the flow diagram of FIG.

[Acceptance equipment]
The receiving facility is a facility for receiving sludge-containing materials recovered from at least one factory facility and a construction site.

The sludge-containing materials that can be accepted in the complex system for processing and distributing sludge-containing materials of this embodiment are not particularly limited as long as they contain sludge, such as residual concrete, concrete washing wastewater, and sludge (including sludge solids). ), sludge water, etc. (see JIS A5308:2019 (Ready Mixed Concrete)). Examples include residual concrete, concrete cleaning wastewater, sludge, and sludge water containing the same, which are generated in various factories such as ready-mixed concrete factories, cement factories, and various product manufacturing factories. Furthermore, the sludge may be either dry powder or wet powder. Further, supernatant water specified in JIS A5308:2019 (ready-mixed concrete) is also mentioned as a sludge-containing substance.
For example, residual concrete, concrete washing wastewater, sludge, sludge water, supernatant water, etc. generated in the concrete manufacturing process of these various factories can be accepted as sludge-containing materials as is, or they can be treated by sieving etc. as necessary. You can also accept those who have done so.

Examples include residual concrete generated at various construction sites such as construction work and road construction where concrete is handled, concrete cleaning wastewater, sludge, and sludge water containing this. The sludge-containing substances include these residual concrete, concrete washing waste water, sludge, sludge water, and supernatant water, just like the sludge-containing substances generated in the various factories described above.

More specifically, sludge-containing substances generated at various construction sites include unused concrete, slurry obtained by adding water to it, and coarse powder such as aggregate contained in the slurry. Those containing fine powder such as cement obtained by separation, the residue containing concrete generated after cleaning the agitator truck, etc., and the fine powder of cement etc. obtained by separating coarse particles such as aggregate from the residue. Examples include those containing. Typical construction sites include condominium and building construction sites, dam construction sites, etc. Road construction sites include, for example, construction sites for general roads, forest roads, and highways. Examples include construction sites.

There is no particular restriction on the format of the receiving equipment, as long as it can accept the sludge-containing materials collected from the above-mentioned factory facilities and construction sites, etc., and preferably, it can store them at least temporarily. (for example, whether it is in powder form or liquid form), and the means of conveying the sludge-containing material (for example, vehicles such as dump trucks and tank trucks, railways, and ships such as bulk ships). do it.

A typical example of the equipment included in the receiving facility is a receiving container (for example, a receiving pit) for receiving sludge-containing materials from various factory equipment and construction sites in bulk. Further, the system of this embodiment may have one receiving container as shown in FIG. 1, or may have multiple receiving containers for each type of sludge-containing material and for each means of transporting the sludge-containing material. may have.

Further, as for the installation location of the receiving equipment, for example, when supporting vehicles such as dump trucks and tank trucks, and land transport means such as railways, the receiving equipment is preferably provided on land. In addition, if it corresponds to marine transport means such as bulk ships, it is preferable to provide it on the coast, and in this case, it is preferable to provide a dedicated pier.

[Intermediate equipment]
The system of this embodiment has storage equipment, classification equipment, and reaction equipment as intermediate equipment. The intermediate facility is a facility that processes and reacts the sludge-containing material, and is a facility that processes the sludge-containing material received at the receiving facility so that it can be shipped as a product. The storage equipment will be explained below.

(storage equipment)
The storage facility is a facility for storing sludge-containing materials.
The storage facility not only stores sludge-containing materials, but also temporarily or long-term storage of sludge when a large amount of sludge is generated, and on the other hand, when the amount of sludge generated is small, the sludge is stored in the storage facility. Adjustments can be made such as releasing the content. In addition, it is also possible to make adjustments such as storage and preservation in order to select the necessary processing depending on the demand for each application, which changes from time to time. Through such adjustment, although the amount of sludge-containing substances such as sludge water generated at various factory facilities and construction sites is not constant, it is possible to respond to changes in the amount of sludge-containing substances generated.

In the storage facility, there are no particular restrictions on the method for storing sludge-containing materials as long as the sludge-containing materials can be stored; for example, a storage container (which may be in any format such as a pit type, tank type, tank type, etc.) is used. You can do it using

As shown in Figure 1, the objects stored in the storage facility include, for example, sludge-containing materials received at the receiving facility (hereinafter also referred to as "supplies from the receiving facility"), and other materials classified by the classification facility described later. sludge-containing materials from which impurities have been removed by impurity removal equipment (hereinafter also referred to as "feeds from impurity removal equipment"), etc. Also included are supplies from intermediate facilities. In the system of this embodiment, it is preferable to store the sludge-containing material (supply from the classification equipment) that has been classified by the classification equipment.
As shown in Figure 1, the sludge-containing material (stored material) stored in the storage facility is shipped as a product from the shipping facility, the reactant reacted in the reaction facility is shipped as a product, and the solid-liquid is transported as necessary. It can be separated using separation equipment and shipped as a product from the shipping equipment.

When the storage equipment has the above-mentioned storage container, the storage container may be singular or plural, and from the viewpoint of more efficient treatment and distribution of sludge-containing materials, it is preferable to have a plurality of storage containers. . Furthermore, in the system of this embodiment, the storage equipment includes a plurality of storage containers, and the sludge-containing materials received by the receiving equipment are classified by the classification equipment, and the plurality of sludge-containing material groups are classified into one sludge-containing material group. Preferably, they are stored in one storage container. This makes it possible to manage the sludge-containing substances that are subjected to the reaction in the reaction equipment, making it easier to carry out the reaction, and making it possible to make decisions such as shipping immediately if it can be shipped without performing the reaction, making it more efficient. This makes it possible to process and distribute materials containing sludge.

For example, as shown in Figure 1, storage containers in the storage facility include sludge-containing materials (supplied from the receiving facility) that can be received at the receiving facility and shipped immediately, and materials that have been classified by the sorting facility and can be shipped. Storage container A stores the sludge-containing material (supply from the classification equipment) that is produced, storage container B stores the sludge-containing material from which impurities have been removed in the impurity removal equipment (supply from the impurity removal equipment), and in the impurity removal equipment A typical example is a storage container such as a storage container C that does not require removal of impurities and stores a sludge-containing material to be subjected to a reaction in a reaction facility.

(Classification equipment)
The classification equipment is equipment that classifies sludge-containing materials according to their properties. By having classification equipment, it is possible to manage the sludge-containing substances that are subjected to the reaction in the reaction equipment, making it easier to carry out the reaction, and also making it possible to decide whether to ship the product if it can be shipped immediately without performing the reaction. This enables more efficient treatment and distribution of sludge-containing materials.

Objects to be classified by the classification equipment include sludge-containing materials received at the receiving facility, and, as shown in Figure 1, sludge-containing materials received at the receiving facility after impurities have been removed by the impurity removal facility. In any case, the objects to be classified by the classification equipment are the sludge-containing materials received by the receiving equipment.
The sludge-containing material (feed from the classification equipment), which is the classified material classified by the classification equipment, can be shipped as is from the shipping equipment, or it can be stored in the storage equipment as a stock or reacted. It is shipped from the shipping facility as a reactant obtained by reacting in the facility. Moreover, after being processed in impurity removal equipment and solid-liquid separation equipment as necessary, it may be supplied to storage equipment and reaction equipment, or it may be shipped from shipping equipment.

The properties of the sludge-containing material that serve as criteria for classification in the classification equipment include preferably the sludge concentration, the type of impurities, and the calcium content in the sludge-containing material. In the system of this embodiment, it is preferable to classify according to at least one of these properties.
As mentioned above, the sludge-containing material received by the system of this embodiment is discharged from the various factories and various construction sites mentioned above, and therefore contains impurities that do not contain calcium, such as suspended solids, dust, and other calcium-containing materials. It may contain a wide variety of impurities such as non-containing ingredients. If the impurities contained in the sludge-containing material to be received are known, if the sludge-containing materials containing the same type of impurities can be treated together in advance, more efficient treatment and distribution of the sludge-containing material will become possible.

For example, when receiving sludge-containing materials with high and low sludge concentrations, it is possible to receive them together and store them in the same storage container, but depending on the type and properties of the products at the time of shipping, for example. In view of this, the higher or lower the sludge concentration in the sludge-containing material, the more efficient the processing and distribution of the sludge-containing material may become. In this case, rather than storing high and low sludge in the same storage container, storing them separately and proceeding with the treatment of sludge containing sludge at the desired sludge concentration will make it more efficient to treat sludge containing sludge. and logistics become possible. The same applies to the calcium content.

In addition to the above, for example, if the sludge-containing material contains coarse particles such as aggregate, the classification criteria may be based on the properties related to the coarse particles, such as the presence or absence of coarse particles, the size of the coarse particles, etc. . When receiving multiple sludge-containing materials containing coarse particles with similar particle sizes, grouping the sludge-containing materials together makes it easier to remove impurities in the removal equipment and process them in the solid-liquid separation equipment described later. Therefore, it becomes possible to treat and distribute sludge-containing materials more efficiently. In addition, regarding the coarse aggregate, both coarse aggregate and fine aggregate may be applicable. When sludge-containing materials containing coarse aggregate and fine aggregate are received at a receiving facility and passed through an impurity removal facility, the coarse aggregate is mainly removed, so the properties of the fine aggregate should be used as the classification criteria. becomes. In addition, when classifying as is using classification equipment without passing through impurity removal equipment, since coarse aggregate and fine aggregate exist, it is sufficient to use the properties of either of them as the standard for classification.

If the properties of the sludge-containing material are known at the time of reception, it is sufficient to follow this. If the properties are unknown, a portion of the sludge-containing material should be It is sufficient to sample and analyze any of the above properties.

(Reaction equipment)
The reaction equipment is equipment that performs a reaction on sludge-containing materials.
The sludge-containing materials that can be used for the reaction in the reaction facility include, in addition to the sludge-containing material received at the receiving facility (supply from the receiving facility), the sludge-containing material supplied from intermediate facilities, that is, storage facilities, Examples of the processed material include classification equipment, and at least one equipment selected from solid-liquid separation equipment and impurity removal equipment, which will be described later.

The reaction in the reaction equipment includes the reaction between the sludge-containing material, which is the feed from each of the above-mentioned equipment, and the gas. Such reactions include, for example, sludge content (solid content) contained in sludge-containing materials, such as components containing calcium, and more specifically, cement hydrates (such as calcium silicate hydrate, calcium hydroxide, etc.). ) and these unhydrated calcium components, and carbon dioxide, and for example, calcium-containing components such as calcium hydroxide dissolved in sludge water, and carbon dioxide, Calcium carbonate is obtained as a reactant by this reaction.

Calcium carbonate can be suitably used, for example, as a cement raw material, a solidifying material raw material, a building material, a resin raw material, a rubber raw material, etc., although the details will be described later. When used for these purposes, by receiving mass balance certification for calcium carbonate, it becomes possible to contribute to carbon neutrality depending on the amount of calcium carbonate used that is obtained by the system of this embodiment. In this way, the system of this embodiment is not only capable of smooth treatment and distribution of sludge-containing materials, but also capable of fixing carbon dioxide while producing valuables such as calcium carbonate. becomes.

There are no particular restrictions on the method of reaction between the sludge-containing material and carbon dioxide in the reaction equipment, as long as these reactions proceed; for example, a method of supplying a gas containing carbon dioxide to the sludge-containing material by bubbling, Typical examples include a method of supplying a sludge-containing material by spraying it into the gas stream while flowing a carbon-containing gas.

In addition, when using sludge water as a sludge-containing material, as mentioned above, sludge water contains dissolved calcium such as calcium hydroxide, so the sludge water is concentrated and calcium hydroxide and other calcium components are dissolved in the sludge water. Alternatively, the components may be precipitated and then reacted. That is, the reaction equipment may include a concentration device in addition to the reaction device for performing the above reaction.

It is preferable that the sludge-containing material supplied to the reaction equipment contains few impurities and has a high sludge concentration and calcium concentration. This is because the reaction between the sludge-containing material and carbon dioxide in the reaction equipment progresses more easily.

Regarding the method of supplying sludge-containing material to reaction equipment, for example, as shown in Figure 1, sludge-containing material having properties such as low impurity and high sludge concentration and calcium concentration is supplied to reaction equipment in classification equipment. The sludge content can be sorted into a storage container C for storing the sludge content and fed to the reaction equipment. Furthermore, before being supplied from the storage container C to the reaction equipment, solid-liquid separation can be performed in a solid-liquid separation equipment, and the solid content can be supplied to the reaction equipment.
In addition, when a sludge-containing material with many impurities is to be supplied to the reaction equipment, the sludge-containing material with many impurities is supplied to the impurity removal equipment, and a storage container is used to store the sludge-containing material from which impurities have been removed in the impurity removal equipment. It is also possible to supply the solid content to the reaction equipment via B, or to perform solid-liquid separation from the storage container B in a solid separation equipment, and to supply the solid content to the reaction equipment.

In addition, as shown in FIG. 1, when the system of this embodiment has a carbon dioxide production facility, the carbon dioxide supplied to the reaction equipment is The carbon dioxide may be supplied by a facility, or carbon dioxide supplied from outside the system of this embodiment may be supplied by a carbon dioxide supply facility.

(Impurity removal equipment)
The intermediate equipment may further include impurity removal equipment for removing impurities contained in the sludge-containing material. The sludge-containing materials accepted by the system of this embodiment are miscellaneous as described above, and therefore contain impurities such as floating matter, dust, etc. that do not contain calcium and cannot be shipped from the shipping equipment described later. It may contain ingredients that do not contain calcium. In the system of this embodiment, by having the removal equipment that removes such impurities in advance, the reaction in the reaction equipment can be made more efficient by using the impurity removed material from which the impurities contained in the sludge-containing material have been removed in advance. This enables more efficient treatment and distribution of sludge-containing materials.

Impurities contained in the sludge-containing material include, for example, water contained in sludge water. By removing moisture, it is possible to reduce the amount of fluid flowing through the system, making it possible to downsize the system and enable more efficient processing and distribution. On the other hand, if it is easier to handle or distribute the sludge water as it is, there is no need to remove the water.

As shown in FIG. 1, the impurity removal equipment may be provided before receiving in the receiving container of receiving equipment, or may be provided after receiving in the receiving container. As shown in Figure 1, the targets of impurity removal equipment when installed after receiving in a receiving container include supplies from receiving equipment, supplies from classification equipment, supplies from storage equipment, etc. It will be done. Additionally, as shown in Figure 1, by supplying the sludge-containing material (impurity-removed material) from which impurities have been removed by the impurity removal equipment to the reaction equipment, it becomes possible to carry out the reaction in the reaction equipment more efficiently. .

In the system of this embodiment, impurity removal equipment may be provided as necessary to remove impurities contained in the sludge-containing material as necessary. You can select it as appropriate. For example, various types of sieves such as a trommel (rotary sieve), a vibrating sieve, and an inclined sieve can be used.

(Solid-liquid separation equipment)
The intermediate equipment may further include solid-liquid separation equipment to separate solid content and liquid content contained in the sludge-containing material. In cases where only the solid content contained in the sludge-containing material is shipped or only the liquid content is shipped, or when the sludge-containing material is supplied to the reactor, only either the solid content or the liquid content is supplied, It can be adopted in such cases.

As shown in Figure 1, the objects to be solid-liquid separated in the solid-liquid separation equipment include the feed from the receiving equipment, the feed from the classification equipment, the feed from the storage equipment, and the feed from the reaction equipment. Examples include supplies from intermediate facilities such as Although not shown in FIG. 1, there may also be a feed from an impurity removal facility.
For example, as shown in Figure 1, the sludge-containing material received at the receiving facility can be shipped as it is, or the sludge-containing material stored in storage container B via the classification facility can be shipped as is by the shipping facility, or the sludge-containing material can be shipped as is by the shipping facility, If only a component or only a liquid component is desired, solid-liquid separation is performed in a solid-liquid separation facility to produce a solid-liquid separated product of solid and liquid components, and each can be shipped from a shipping facility.

As shown in Fig. 1, the sludge-containing materials to be supplied to the reaction equipment are classified by classification equipment and stored in storage containers B or C, and are supplied to the reaction equipment as they are. Alternatively, the sludge-containing materials stored in these storage containers can be subjected to solid-liquid separation in solid-liquid separation equipment, and then only the solid content or only the liquid content can be supplied to the reaction equipment. .

The reactant obtained in the reaction equipment can also be shipped as is from the shipping equipment. In addition, if the reactant has a solid content and a liquid content, it may be shipped as is from the shipping facility, or it may be separated into solid and liquid using a solid-liquid separation facility and the solid content may be stored as a product, as shown in Figure 1. It is also possible to store the product in one of containers A and B, store the liquid in the other product storage container, and ship the solid and liquid separately from the shipping facility.

In the system of this embodiment, solid-liquid separation equipment may be provided as necessary to separate the solid content and liquid content as necessary. It may be selected appropriately depending on the liquid content. For example, a dehydration device such as a filter press, a filtration device, etc. can be employed.

[Shipping equipment]
The shipping facility is a facility that ships the supplies from the receiving facility and the intermediate facility as products according to their usage. The system of this embodiment is equipped with the above-mentioned receiving equipment and shipping equipment, thereby making it possible to efficiently distribute the sludge-containing material.

Products shipped from shipping equipment include supplies from receiving equipment and supplies from intermediate equipment.
The feed from the receiving facility is exactly the sludge-containing material received at the receiving facility. Further, examples of the supplies from the intermediate equipment include supplies from the storage equipment (stored materials), supplies from the classification equipment (classified materials), and supplies from the reaction equipment (reactants). Also included are a feed from an impurity removal facility (impurity-removed product) and a feed from a solid-liquid separation facility (a solid-liquid separated product, which has a solid content and/or a liquid content).

As shown in Figure 1, the sludge-containing materials shipped from shipping equipment include supplies from receiving equipment, supplies from intermediate equipment, supplies from storage equipment (stored materials), and classification equipment. The feed (classified material), the feed from the impurity removal equipment (impurity removed material), and the feed from the solid-liquid separation equipment (solid-liquid separated material, solid content and/or liquid content) Applicable. This is because these feeds do not contain components other than those contained in the sludge-containing material received at the receiving facility.

When the sludge-containing material to be shipped from the shipping equipment is a feed from the solid-liquid separation equipment, at least one of the solid content and the liquid content obtained by solid-liquid separation can be shipped.
If the sludge-containing material is sludge water containing coarse particles such as aggregate, the coarse particles such as aggregate correspond to the solid content, and sludge water from which the coarse particles have been removed (calcium such as calcium hydroxide) This is the supernatant water in which the liquid fraction has been dissolved.) corresponds to the liquid fraction. Further, the solid content may contain impurities such as suspended matter, but if there are many impurities in the received sludge-containing material, they may be removed using impurity removal equipment as necessary.

In addition, when the sludge-containing material received at the receiving facility is sludge water (which may also contain coarse particles such as aggregate), the sludge-containing material to be shipped from the shipping facility is, for example, aggregate, etc. Calcium content such as calcium hydroxide obtained by concentrating sludge water (supernatant water in which calcium content such as calcium hydroxide is dissolved) obtained by removing coarse particle content may also be mentioned.

Examples of uses for the sludge-containing materials shipped from the above shipping equipment include carbonate raw materials, cement raw materials, solidifying material raw materials, paper manufacturing raw materials, resin raw materials, and rubber raw materials, as well as concrete materials, mortar materials, and asphalt materials. Examples include materials (auxiliary materials, etc.).

Sludge-containing substances such as the above sludge water can be shipped as calcium components such as calcium hydroxide to ready-mixed concrete factories and cement factories as cement raw materials, solidifying material raw materials, building materials, etc., and can be shipped to paper factories as auxiliary materials (e.g. It can be used as a chemical when recovering caustic soda from the soda carbonate discharged during pulp manufacturing.) It can be used as a resin raw material (for example, it can be used as a flame retardant, an antibacterial agent, a deodorizing agent, a toxic gas trapping material, etc.) ), and can also be shipped to paper factories, resin manufacturing factories, and rubber manufacturing factories, respectively, as raw materials for rubber (for example, they can be used as acid acceptors for fluororubber, etc.). Furthermore, if the sludge water is of high quality and has a low content of impurities, it is particularly useful as a raw material or auxiliary material in paper mills, resin manufacturing plants, rubber manufacturing plants, etc. among the above.
Depending on the needs of these factories, it may be shipped as sludge water or as a calcium-containing powder such as calcium hydroxide.

If the product shipped from the shipping facility is a feed from a reaction facility among intermediate facilities, the product may contain components other than those contained in the sludge-containing material received at the receiving facility.
The feed (reactant) from the reaction equipment includes calcium carbonate, which is a reactant obtained in the above reaction equipment. Examples of uses for the reactants such as calcium carbonate shipped from the shipping facility include carbonate raw materials, cement raw materials, solidifying material raw materials, paper manufacturing raw materials, resin raw materials and rubber raw materials, and auxiliary materials.
For example, calcium carbonate can be shipped as a carbonate raw material, a cement raw material (e.g., cement composition), a solidifying agent raw material, a building material, or a paper manufacturing raw material (e.g., filler, coagulation aid, retention agent, etc.). ), resin raw materials (can be used as additives to improve various properties such as impact resistance, dimensional stability, and surface smoothness), rubber raw materials (heat resistance, strength, It can be used as a filler for rubber to improve processability.) It can also be shipped to paper factories, resin manufacturing factories, and rubber manufacturing factories. Calcium carbonate can also be shipped as various materials (auxiliary materials) such as fillers used in mortar, concrete, asphalt, etc. (also referred to as mortar materials, concrete materials, and asphalt materials, respectively).

Products shipped from the shipping facility include aggregates such as coarse aggregate and fine aggregate. Aggregate is a feedstock that can be supplied from an impurity removal device and a solid-liquid separation facility, as described above. For example, in an impurity removal device, aggregate is obtained by removing aggregate as an impurity from a sludge-containing material containing aggregate. Further, in the solid-liquid separation equipment, aggregate is obtained by separating aggregate as a solid content from a sludge-containing material containing aggregate. Here, when the sludge-containing material contains, for example, mortar in addition to aggregate, the aggregate and mortar are obtained as solid components by solid-liquid separation.
Aggregates obtained from these facilities can be used as various materials (auxiliary materials) for mortar materials, concrete materials, asphalt materials, etc., similar to the above-mentioned calcium carbonate. Further, if a mortar component is obtained, the mortar component can be used as a raw material for mortar or a raw material for concrete.

The shipping facility may include product storage facilities. By having a product storage facility for temporary or long-term storage of products before shipping, it becomes easier to respond to changes in the amount of sludge-containing materials generated, as well as fluctuations in the amount of shipments.

There are no particular restrictions on the type of product storage equipment as long as it can store products temporarily or long-term before shipping, but for example, product storage containers (pit, tank, tank, silo, etc.) may be used. ) may be used.

In addition, when the product storage equipment has the above-mentioned product storage container, the product storage container may be single or multiple. It is preferable that If there are multiple product storage containers, for example, multiple product storage containers can be provided depending on the properties of the product, such as liquid or solid, or product purity. good. Since more efficient shipping is possible, more efficient processing and distribution of sludge-containing materials is possible.

For example, as shown in Figure 1, the feed (reactant) from the reaction equipment is subjected to solid-liquid separation in the solid-liquid separation equipment as necessary, and the solid content is stored in either product storage container A or B. and storing the liquid portion in the other product storage container. In this way, the product can be stored separately into a solid content and a liquid content, or it can be stored according to the purity of the product as described above.

The shipping equipment is not particularly limited in its format as long as it can ship the supplies from the above-mentioned equipment as products according to their intended use. The type may be selected according to the type of vehicle (vehicle such as a dump truck or tank truck, railway, or ship such as a bulk ship).
For example, when dealing with vehicles such as dump trucks and tank trucks, and land transport means such as railways, the receiving facility is preferably provided on land. In addition, if it corresponds to marine transport means such as bulk ships, it is preferable to provide it on the coast, and in this case, it is preferable to provide a dedicated pier.

(Means of transportation)
Preferably, the system of this embodiment includes a transportation means for transporting the sludge-containing material received at the receiving facility and the product shipped at the shipping facility. That is, the system of the present embodiment includes a receiving transportation means for collecting the sludge-containing material from at least one factory equipment and a construction site and transporting it to the receiving equipment, and a receiving transport means for collecting the sludge-containing material from at least one factory equipment and a construction site, and a receiving transport means for collecting the sludge-containing material from at least one factory equipment and a construction site, and a receiving transport means for collecting the sludge-containing material from at least one factory equipment and a construction site and transporting it to the receiving equipment, and products shipped from the shipping equipment (from each of the above equipment It is preferable to include at least one shipping means for transporting the feed (including sludge-containing materials and reactants) to the supply destination. As a result, the system of the present embodiment can collectively manage all of the processing and distribution of the sludge-containing material, thereby enabling more efficient processing and distribution of the sludge-containing material.

As mentioned above, examples of transportation means include vehicles such as dump trucks and tank trucks, land transportation means such as railways, and sea transportation means such as bulk ships. In the system of this embodiment, it is preferable that at least one of the receiving transportation means and the shipping transportation means is at least one land transportation means selected from the railways and vehicles described above, or the sea transportation means described above. Therefore, for example, the means of transport for receiving and the means of transport for shipping may both be at least one land transport means selected from the above railways and vehicles, or both may be sea transport means, or the means of transport for receiving and One of the shipping transportation means may be a land transportation means, and the other may be a sea transportation means.

In the system of this embodiment, the receiving transportation means and the shipping transportation means are carried out by one means, and the one means transports the products shipped from the shipping equipment to the supply destination (according to the use of the above-mentioned products). ), and at least one of the sludge-containing material and the gas used in the reaction is preferably transported from the at least one factory equipment and construction site.
In this way, the receiving transportation means and the shipping transportation means are carried out by one means, the products to be shipped are transported to the supply destination, and on the way back, at least one of the sludge-containing material to be received and the gas used for the reaction is transported. This enables more efficient treatment and distribution of sludge-containing materials. Further, if the destination of the product matches the factory equipment and construction site that receives the sludge-containing material, more efficient processing and distribution of the sludge-containing material becomes possible.

The sludge-containing material to be transported by the receiving transportation means is the sludge-containing material described as one that can be received by the above-mentioned receiving facility, and may be transported in a format depending on its form.
Furthermore, gas can be transported from a factory where carbon dioxide is generated, such as a cement factory, in the form of packaging such as a gas tank or cylinder.

[Processing and distribution method of sludge-containing materials]
The method for treating and distributing sludge-containing material according to the present embodiment is as follows:
receiving the sludge-containing material collected from at least one factory facility and construction site with a receiving facility; shipping the product with a shipping facility; and the following (i) to (vi);
(i) Storing the sludge in a storage facility (ii) Sorting the sludge content in a classification facility according to its properties (iii) Performing a reaction in a reaction facility (iv) Removing impurities in an impurity removal facility (v) ) performing solid-liquid separation in a solid-liquid separator (vi) performing at least one of the treatments and reactions of supplying to the shipping facility,
The shipping facility is a facility that ships products obtained by performing the processing and reaction according to their use.
That is what it is.

The processing and distribution method of this embodiment can be easily performed by employing the system of this embodiment described above. The above-mentioned receiving equipment, shipping equipment, storage equipment, classification equipment, and intermediate equipment of reaction equipment in the treatment and distribution method of this embodiment are the same as those explained in the treatment and distribution system for sludge-containing material of this embodiment. It is.

In the treatment and distribution method of the present embodiment, the sludge-containing material stored in the storage facility is preferably a sludge-containing material obtained by classifying the sludge-containing material received in the receiving facility using a sorting facility. By doing this, it is possible to control the sludge-containing materials that are subjected to the reaction in the reaction equipment, making it easier to carry out the reaction, and also making it possible to make decisions such as shipping if it can be shipped immediately without carrying out the reaction. This enables more efficient treatment and distribution of sludge-containing materials.

Further, the processing and distribution method of the present embodiment may include processing in an intermediate facility between the impurity removal facility and the solid-liquid separation device. The impurity removal equipment and solid-liquid separator are the same as those described in the sludge-containing material treatment and distribution system of this embodiment.

In the processing and distribution method of the present embodiment, performing the above-mentioned treatments and reactions (i) to (vi) may be performed by performing only one of these treatments or reactions (i) to (vi), or by performing the treatments or reactions of only one of these (i) to (vi). Two or more of the treatments and/or reactions (i) to (vi) may be performed.
In the treatment and distribution method of this embodiment, from the viewpoint of enabling more efficient treatment and distribution of sludge-containing materials, it is preferable to perform two or more of the treatments and/or reactions of (i) to (vi) above. It is more preferable to perform three or more treatments and/or reactions. From the same point of view, it is sufficient to include at least (vi) among the processes (i), (ii), and (iv) to (vi) above, and it is preferable to include (i) and (vi). Preferably, the above (i), (ii) and (vi) are more preferably provided.

Considering that not only the sludge-containing material but also the reactant obtained by the reaction is supplied as a product, the reaction (iii) above is effective from the viewpoint of enabling more efficient treatment and distribution of the sludge-containing material. It is preferable to perform only one of the above-mentioned treatments (i), (ii) and (iv) to (vi), and the above-mentioned reaction (iii) and the above-mentioned (i), (ii) and (iv). It is more preferable to carry out two or more of the treatments of ) to (vi), and the reaction of (iii) above, and three or more of the treatments of (i), (ii) and (iv) to (vi), It is more preferable to perform the following.

The simplest form of the treatment and distribution method of this embodiment is the route of receiving equipment → shipping equipment (corresponds to performing the treatment in (vi) above). By shipping the products from the shipping equipment, we receive all the sludge-containing materials discharged from factories of various sizes in bulk, process them to supply them to the shipping equipment, and then ship them from the shipping equipment. It becomes possible to carry out efficient processing and logistics. Furthermore, regarding the supply to the shipping equipment in (vi) above, the objects to be supplied are not only the sludge-containing materials received at the receiving equipment, but also those that have undergone the treatments and reactions described in (i) to (v) above. Can be mentioned.

In the processing and distribution method of this embodiment, by employing at least one treatment and reaction selected from (i) to (vi) above, processing and distribution according to the desired properties of the product can be more efficiently carried out. It becomes possible to do so. As the combinations (i) to (vi) above, for example, the forms (a) to (c) described below are representative and preferred.

The treatment and distribution method of this embodiment can be operated and shipped by selecting any of the following (a) to (c) for the sludge-containing material to be stored by storing the above (i). .
(a) The stored sludge-containing material is made into a product as it is and is shipped from the shipping facility.
(b) According to (v) above, the stored sludge-containing material is subjected to solid-liquid separation, and at least one of the obtained solid and liquid is made into a product and shipped from the shipping facility.
(c) According to (iii) above, the stored sludge-containing material and gas are reacted, and the resulting reaction product is made into a product and shipped from the shipping facility.

The above (a) corresponds to the route of receiving equipment (receiving container) → storage container A → shipping equipment (processes (i) and (vi) above) shown in FIG. Note that the route from receiving equipment (receiving container) to shipping equipment shown in FIG. 1 is a route in which the product is not stored in a storage facility, and corresponds to the route (vi) above in which processing is performed by supplying to the shipping equipment.
In the processing and distribution method of this embodiment, the receiving equipment receives sludge-containing materials collected from various places in bulk, and the shipping equipment ships the sludge-containing materials as products for each purpose, thereby increasing the efficiency of processing and logistics of the sludge-containing materials. It is possible to achieve this goal. Furthermore, as in (a) above, as well as (b) and (c) above, by performing the processing and reaction in at least one of the storage equipment, classification equipment, and reaction equipment of the intermediate equipment, it is possible to improve efficiency. This makes it possible to process and distribute materials containing sludge.

The above (b) is the route of receiving equipment (receiving container) → storage container A → solid-liquid separation equipment → shipping equipment (processing of (i), (v), and (vi) above) shown in FIG. Route via storage container A of equipment (receiving container) → classification equipment → storage container A → solid-liquid separation equipment → shipping equipment (processing of (i), (ii), (v), and (vi) above) Receiving equipment (receiving container) → Classification equipment → Impurity removal equipment → Storage container B → Solid-liquid separation equipment → Shipping equipment route (route of (i), (ii), (iv), (v) and (vi) above) route via storage container B of processing); and the route of receiving equipment (receiving container) → classification equipment → storage container C → solid-liquid separation equipment → shipping equipment ((i), (ii), (v) and ( This corresponds to the route via storage container C in process vi).

The above (c) is the route shown in Figure 1: receiving equipment (receiving container) → classification equipment → storage container B or C → reaction equipment → shipping equipment (from the classification equipment to the reaction equipment, via storage containers B and C). The route can be selected as appropriate.) (Processing in (i), (ii), (iii), (iv) and (vi) above), receiving equipment (receiving container) → classification equipment → storage container B or C → reaction Route of equipment → solid-liquid separation equipment → product storage containers A and/or B → shipping equipment (the route from the classification equipment to the reaction equipment via storage containers B and C can be selected as appropriate) ((i) above, ( ii), (iii), (iv), (v), and (vi).
Furthermore, in (a) to (c) above, it goes without saying that impurities may be removed in an impurity removal facility depending on the properties required of the product.

The processing and distribution method of the present embodiment includes collecting sludge-containing materials from at least one factory facility and a construction site, and transporting the sludge-containing materials to the receiving facility by a receiving transportation means, and transporting the sludge-containing materials to the receiving facility; and transporting the product to the supply destination using a shipping means for transporting the product shipped from the shipping facility to the supply destination. As a result, all of the processing and distribution of the sludge-containing material can be managed in a unified manner, allowing more efficient processing and distribution of the sludge-containing material. Here, the transportation means for receiving and the transportation means for shipping are the same as those described in the treatment and distribution system for sludge-containing materials of the present embodiment.

Claims (10)

at least one factory facility and facility for receiving sludge-containing material recovered from a construction site;
storage equipment for sludge-containing materials;
Classification equipment that sorts sludge-containing materials according to their properties ;
Reaction equipment for reacting sludge- containing materials, and
intermediate equipment having impurity removal equipment for removing impurities contained in the sludge-containing material ;
shipping equipment that ships the supplies from the receiving equipment and the intermediate equipment as products according to their use;
A complex system for processing and logistics of sludge-containing materials. The combined system for treatment and distribution of sludge-containing materials according to claim 1, wherein the intermediate facility further includes a solid-liquid separation device. The storage equipment includes a plurality of storage containers, and the plurality of sludge-containing material groups obtained by classifying the sludge-containing material received by the receiving equipment by the classification equipment are stored in one storage container for each sludge-containing material group. A complex system for processing and distributing a sludge-containing material according to claim 1. a receiving transport means for collecting the sludge-containing material from the at least one factory equipment and construction site and transporting it to the receiving equipment; and a shipping transport means for transporting the product shipped from the shipping equipment to a supply destination. The combined system for treatment and distribution of sludge-containing materials according to claim 1, comprising at least one means of transportation. The receiving transportation means and the shipping transportation means are carried out by one means, and the one means transports the product shipped from the shipping facility to the supply destination, and the at least one factory facility The combined system for processing and distributing sludge-containing materials according to claim 4 , wherein at least one of the sludge-containing materials and the gas used for the reaction is transported from the construction site. The use of the product in the shipping facility is at least one selected from carbonate raw materials, cement raw materials, solidifying material raw materials, paper manufacturing raw materials, resin raw materials, and rubber raw materials, and materials for concrete materials, mortar materials, and asphalt materials. A complex system for processing and distributing a sludge-containing material according to claim 1, which is used for. The combined system for processing and distributing sludge-containing material according to claim 1, wherein the property of the sludge-containing material is at least one property selected from sludge concentration, impurity type, and calcium content in the sludge-containing material. Using the complex system for processing and logistics of sludge-containing material according to claim 1,
receiving sludge-containing materials collected from at least one factory facility and construction site in a receiving facility; shipping the product in a shipping facility; and (i) to (vi) below;
(i) Storing the sludge in a storage facility (ii) Sorting the sludge content in a classification facility according to its properties (iii) Performing a reaction in a reaction facility (iv) Removing impurities in an impurity removal facility (v) ) performing solid-liquid separation in a solid-liquid separator (vi) performing at least one of the treatments and reactions of supplying to the shipping facility,
A method for processing and distributing a sludge-containing material, wherein the shipping facility is a facility for shipping products obtained by performing the treatment and reaction according to their use. The sludge according to claim 8 , wherein the sludge-containing material to be stored by storing the sludge-containing material in (i) is a sludge-containing material obtained by classifying the sludge-containing material received at the receiving facility according to the classification in (ii). Processing and distribution methods for contained substances. The method for treating and distributing a sludge-containing material according to claim 9 , wherein one of the following (a) to (c) is selected for the sludge-containing material to be stored by storing (i).
(a) The stored sludge-containing material is made into a product as it is and is shipped from the shipping facility.
(b) According to (v) above, the stored sludge-containing material is subjected to solid-liquid separation, and at least one of the obtained solid and liquid is made into a product and shipped from the shipping facility.
(c) According to (iii) above, the stored sludge-containing material and gas are reacted, and the resulting reaction product is made into a product and shipped from the shipping facility.