JP2012223746A - Aqueous fluid treatment system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aqueous fluid treatment system which can be arranged in a small space, treat water efficiently by separating organic ingredients from water with small energy consumption and utilize solid ingredients.SOLUTION: The aqueous fluid treatment system carries out separating aqueous ingredients from an aqueous fluid containing solid based on organic ingredients and water, purifying the separated aqueous ingredients to predetermined standards and decomposing thermally the separated solid ingredients based on organic ingredients. The system includes at least one solid/liquid separation unit 100 separating the fluid into solid ingredients and aqueous ingredients, a water treatment unit 300 for purification of aqueous ingredients including a fine bubble treatment vessel having a fine bubble generator generating bubbles of an oxygen type gas and a thermal decomposition unit 600 decomposing thermally the solid based on organic ingredients after the solid/liquid separation.

Description

  The present invention relates to an aqueous fluid treatment system. More specifically, the present invention relates to a space-saving and energy-saving water treatment system that discharges a predetermined level of water by solid-liquid separation from water containing an organic component.

  Conventionally, microorganisms are generally used when performing treatments using microorganisms such as activated sludge process and purification of rivers and lakes. .

  A representative example of these microbial treatments is aerobic biological wastewater treatment. The activated sludge method has been widely used for aerobic biological wastewater treatment, but recently, a wastewater treatment method called the soaking filter bed method or the fixed bed method (hereinafter simply referred to as the soaking filter bed method) has been proposed. Has been put to practical use. In the aerobic submerged filter bed method, a filler for adhering microorganisms in a treatment tank is filled as a submerged filter bed, waste water is introduced into the treatment tank, and aeration is performed. As a result, microorganisms grow on the filler, and contaminants in the wastewater are removed using dissolved oxygen dissolved in the wastewater by aeration.

  Such a system is very large and requires a large-scale system. On the other hand, when toilets are installed in houses, parks, riverbeds, mountain huts, etc., where sewerage facilities are not widespread, the excreta usually collects solids and liquids together and collects them in a urine storage tank. When the amount is less than 1, the amount is collected with a vacuum car or the like, transferred to a place having purification equipment, and processed at the place having the purification equipment.

  As a method for treating human waste, Patent Document 1 performs a biological treatment to separate solids and liquids of excrement, composting the separated solids, and purifying the separated water. Recycling methods have been proposed.

  The method using the human waste storage tank generates a bad odor, and gives a person uncomfortable to the user. In addition, human waste stored in the human waste storage tank is both liquid and solid, and the transportation cost for transporting it is also expensive. In addition, the purification facility using microorganisms has the disadvantage that the microorganisms become less effective when the temperature is lowered, and the purification efficiency deteriorates. The management of microorganisms is very delicate, and it may happen that the microorganisms are not purified by an unexpected event.

  Patent Document 2 proposes a system that performs solid-liquid separation of excreta using a stable coagulant rather than an unstable biological treatment and recycles the separated water. The recycling system described in Patent Document 2 includes a pulverizer that finely pulverizes human waste, a stirrer that finely pulverizes human urine and a coagulant, a precipitation tank that separates solid and liquid, and collects the separated liquid as washing water. And a water circulation type human waste treatment apparatus constituted by a pump.

  According to Patent Document 2, it is possible to reduce the amount of water used in the flush toilet by recycling the water contained in human waste and using it as washing water without causing bad odor by washing with water. Moreover, the effect of not giving discomfort to the person who uses a toilet is described (patent document 2, paragraph 0007).

  On the other hand, attempts have been made to use sludge as fuel. According to Non-Patent Document 1, it is described that sludge is pyrolyzed and carbonized by using it as a fuel for thermal power generation or the like.

  Japanese Patent Laid-Open No. 11-131552   JP 2008-284502 A

Study on sludge pyrolysis fuel system Kenji Uchida http: // www. jiwet. jp / quarterly / n011 / pdf / n011-006. pdf (searched on April 16, 2011)

  However, in the sludge treatment described in Patent Documents 1 and 2, there is a problem in the treatment of separated solids, and in the method of Non-Patent Document 1, it is necessary to dry the sludge, and a large amount of heat energy is required for drying the sludge. There was a problem of need.

  Accordingly, an object of the present invention is to provide an aqueous fluid treatment system that can be disposed in a small space, can efficiently separate an organic component and water with a small amount of energy, and can effectively use a solid component.

The present invention for solving the above problems relates to the following items.
(1) An aqueous component is separated from an aqueous fluid in which a solid mainly containing an organic component and water are mixed, the separated aqueous component is purified based on a predetermined standard, and the solid component mainly composed of the separated organic component is heated. An aqueous fluid treatment system for decomposition,
(A) at least one solid-liquid separator that separates the fluid into a solid component and an aqueous component; and (b) a fine bubble generator that generates fine bubbles of an oxygen-based gas selected from the group consisting of oxygen, ozone, and air. A water treatment device for purifying an aqueous component including a microbubble treatment tank having:
(C) a thermal decomposition apparatus for thermally decomposing a solid mainly composed of organic components separated into solid and liquid;
An aqueous fluid treatment system comprising:

(2) At least one biological treatment tank in which the water treatment device microbiologically treats the aqueous component, and a fine bubble generator for generating fine bubbles of oxygen-based gas selected from the group consisting of oxygen, ozone, and air An aqueous fluid treatment system according to item 1, comprising a microbubble treatment tank having

(3) The biological treatment apparatus is (1) a microbial carrier comprising a woven or knitted fabric of fiber yarns on the surface of a support, and a microorganism living space is formed between the fibers, wherein the microbial carrier is The constituting fiber is composed of at least two kinds of fibers, ie, a supporting fiber and a microorganism-implanting fiber having a surface sufficient for B-microorganisms to be implanted, and the microorganisms inhabit the living space between the fibers. It is at least one biological treatment apparatus having a microbial carrier having a formed microbial carrier or (2) a loop-like shape on the surface of a support, a shape in which a tip portion of the loop is cut, and a pile-cut fiber. Item 3. The aqueous fluid treatment system according to Item 2.

(4) Item 1 to Item 3 characterized in that the water treatment device includes a coagulation tank having a fine bubble generating device for generating fine bubbles of oxygen-based gas selected from the group consisting of oxygen, ozone, and air. The aqueous fluid treatment system according to any one of the above.

(5) The water treatment device is treated with a fine bubble treatment tank having a fine bubble generation device for generating fine bubbles of an oxygen-based gas selected from the group consisting of oxygen, ozone, and air, and a fine bubble of an oxygen-based gas. The aqueous fluid treatment system according to any one of items 1 to 4, further comprising a filtration device that filters the produced water under pressure.

(6) The aqueous fluid treatment system according to any one of Items 1 to 5, wherein the solid-liquid separation device includes a screen-type solid-liquid separation device that separates fluid by a screen.

(7) The screen-type solid-liquid separation device includes a screen for separating a solid and a liquid, and a storage unit for storing the separated liquid, and the stored liquid component is stored in the storage unit. 7. The aqueous fluid treatment system according to item 6, comprising: a fine bubble generating device for levitating the solid content from the water and a solid component supplementing unit for recovering the solid content that floated.

(8) The aqueous fluid treatment system according to any one of items 1 to 7, wherein the solid-liquid separator includes a decanter type solid-liquid separator.

(9) The aqueous fluid treatment system according to any one of items 1 to 8, wherein the aqueous fluid treatment system is installed in one or more containers.

(10) The aqueous fluid treatment system according to item 9, wherein an advertisement is applied to the exposed surface of the container.

(11) The aqueous fluid treatment system according to any one of Items 1 to 10, wherein the thermal decomposition apparatus is an oiling apparatus that converts an organic component into oil or a carbonization apparatus that carbonizes an organic component. .

(12) The thermal decomposition apparatus includes a drying apparatus for drying the solid component separated into solid and liquid, a thermal decomposition apparatus main body for thermally decomposing the solid component dried by the drying apparatus, and heat generated by the thermal decomposition apparatus. Item 1 to Item 11 comprising hot air feed piping to be sent to the drying device, and a purification device for purifying gas used for drying in the drying device connected through the drying device and piping. The aqueous fluid treatment system according to any one of the preceding claims.

(13) The aqueous fluid treatment system according to any one of Items 1 to 12, wherein the thermal decomposition apparatus includes a power generation apparatus that generates power using heat generated by thermal decomposition.

The aqueous fluid treatment system of the present invention separates an aqueous component from an aqueous fluid in which a solid mainly containing an organic component and water are mixed, purifies the separated aqueous component to a predetermined standard, and mainly uses the separated organic component. Is an aqueous fluid treatment system for subjecting the solid component to pyrolysis,
(A) at least one solid-liquid separator that separates the fluid into a solid component and an aqueous component; and (b) microbubble generation that generates microbubbles of an oxygen-based gas selected from the group consisting of oxygen, ozone, and air. It comprises a water treatment device that purifies an aqueous component including a fine bubble treatment tank having a device, and (c) a thermal decomposition device that thermally decomposes a solid mainly composed of solid-liquid separated organic components.

  Accordingly, the organic component and water can be separated and efficiently treated with a small amount of energy that can be disposed in a small space, and the separated water layer can be efficiently treated in a space-saving manner. On the other hand, since the separated solid component is liquefied or carbonized by a thermal decomposition apparatus, the separated solid component can be effectively used.

  The drawing which shows the processing flow of the aqueous fluid processing system which concerns on embodiment of this invention.   BRIEF DESCRIPTION OF THE DRAWINGS Drawing which shows one Embodiment of the aqueous fluid processing system of this invention.   Drawing which shows another one Embodiment of the aqueous fluid processing system of this invention.   (A), (b) is drawing which shows the microorganism carrier used by this invention.   (A), (b) is drawing which shows the microorganism carrier used by this invention.   The drawing which shows the microbial implantation surface of the microbial carrier used by this invention.   (A), (b) is drawing which shows the microorganism carrier used by this invention.   (A)-(d) is drawing which shows the microorganisms carrier used by this invention.   The drawing which shows another one Embodiment of the aqueous fluid processing system of this invention.   Drawing which shows a mode that the aqueous fluid processing system shown in FIG. 9 was integrated in the container.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, fluids applicable in this embodiment include sludge, water from rivers, lakes, wastewater from waste (particularly containing biodegradable components), food / food processing wastewater, livestock wastewater, etc. It is a biodegradable waste liquid.

  In the present invention, these aqueous fluids are subjected to solid-liquid separation by the solid-liquid separation device 100, and the liquid layer subjected to solid-liquid separation is treated by the water treatment device 200 and used as discharge or clean water / medium water.

  On the other hand, the solid component separated by the solid-liquid separation device 100 is thermally decomposed by the thermal decomposition device 600 and reused as oil or carbide.

  In the present invention, the fluid to be used is discharged after treatment by a water treatment apparatus suitable for the purpose after solid-liquid separation, or used as middle water (sludge, waste-derived (particularly containing biodegradable components) ) Wastewater, food / food processing wastewater, livestock wastewater, etc.) and water (water from rivers, lakes, etc.).

  The solid-liquid separation device 100 in the present invention may be one or a plurality of units depending on the purpose, and is appropriately selected from solid-liquid separation devices known in the technical field, and is not particularly limited. Absent. For example, a screen-type solid-liquid separator, a decanter-type solid-liquid separator, a centrifugal separator (continuous / batch type), a dehydrator, and the like can be appropriately selected according to the purpose.

  In a preferred embodiment of the present invention, the solid-liquid separator 100 is a screen type solid-liquid separator. This apparatus has a screen for separating a fluid into a solid content and moisture, a separation water tank for primarily storing separated water, and a fine micropore for introducing fine bubbles of ozone and / or oxygen from the water treatment apparatus 200. Scraping means (not shown) for scraping off the supplemented solid content, if necessary, comprising a bubble introduction port and a solid content supplementing unit for supplementing the solid content floated by the introduced fine bubbles have.

  Here, the mesh of the screen 1 to be used is appropriately selected according to the size of the solid content in the fluid, but the solid content that has passed through the mesh and entered the separation water tank is converted into oxygen and / or from the fine bubble inlet. It floats with fine bubbles of ozone and is supplemented with a solid content supplement part.

  In the present invention, a decanter type solid-liquid separator can be applied as desired. For example, a solid-liquid separator sold by GFA under the trade name of decanter UCD can be applied.

  Thus, the solid-liquid separated water layer is treated in a biological treatment tank, a coagulation tank, or a combination thereof. In the present invention, the water treatment apparatus introduces fine bubbles of oxygen-based gas. There is a feature. Specifically, the oxygen-based gas is concentrated oxygen and / or ozone. Such oxygen-based gas concentrates oxygen in the air with an oxygen concentrator (PSA) 303, ozonizes the oxygen concentrated by the ozone generator 302, and forms fine bubbles in the water treatment tank 300 by the fine bubble generator 301. Introduce.

  In the case where it is desired to introduce fine oxygen bubbles, oxygen concentrated by the oxygen concentrator (PSA) 303 can be realized by bypassing the ozone generator 302.

  By introducing oxygen-based fine bubbles into the water treatment tank 200 in this manner, for example, organic components from the biological treatment tank 200 are decomposed, microorganisms are removed, or treated water containing fine bubbles is pressurized. It is possible to reduce the pressure during the filtration process below. Depending on the type of treatment liquid, heavy metal may be removed.

  On the other hand, the solid content mainly composed of organic components separated by the solid-liquid separation device 100 is subjected to thermal decomposition treatment by the thermal decomposition device 600, but in a preferred embodiment of the present invention, the solid content is thermally decomposed to dry the solid content. It is preferable to use the generated heat (see FIGS. 2 to 4 described later).

Next, a specific example of the aqueous fluid treatment system of the present invention will be shown based on FIGS.
The aqueous fluid treatment system shown in FIG. 2 and FIG. 3 is a system that mainly treats immersion water such as sludge, livestock-derived waste liquid, and raw garbage up to water that meets the discharge standard. The water treatment system shown in FIG. 2 is different from the water treatment system shown in FIG. 3 in that a single solid-liquid separation device is provided.

  The solid component separated by the solid-liquid separation device 100 is sent to the biological treatment tank 200 which is a water treatment apparatus, subjected to microbial treatment, and finally processed by the water treatment tank 300.

  In the present invention, the water separated by the solid-liquid separators 100 and 100 ′ is then biologically processed by the biological treatment tank 200. If desired, a solid-liquid separation can be further performed by adding a flocculant as conventionally known. At this time, a preferable flocculant is an ionic flocculant.

  At this time, in order to achieve the object and effect of the present invention, the present invention is characterized by adopting a biological treatment tank 200 to which a microbial carrier as shown in FIGS. 3 to 7 is fixed.

  As shown in FIGS. 3 and 4, the microbial carrier of the present invention is formed so that the microbial habitat space 21 is exposed from a fabric composed of two types of fibers, a supporting fiber 20A and a microbial implantation fiber 20B. Yes.

  The supporting fiber 20A is formed from a fiber having sufficient strength to maintain the shape of the microorganism carrier 2, and is not particularly limited as long as the fiber has such strength.

  In the present embodiment, a fabric in which the supporting fiber 20A is formed from a high shrinkage yarn is used. The high shrinkage yarn refers to a yarn that shrinks when heat is applied, and is appropriately selected from conventionally known shrinkage yarns in consideration of strength, specific gravity, and desired microbial habitat size. For example, polyvinyl chloride, polyvinyl chloride Examples include vinylidene and polyester resins.

  Moreover, in this embodiment, the microfiber which has many fine space on the fiber surface which comprises a microorganisms implantation part as shown in FIG. 5 as the microorganisms implantation fiber 20B can be used conveniently.

  In a preferred embodiment of the present invention, a microfiber manufactured using a recycled product such as PET as a raw material is particularly preferable as a microfiber used for the microorganism implantation fiber 20B from the viewpoint of recycling. As such a microfiber, a recycled microfiber sold by Kikuchi Eco Earth Co., Ltd. under the trade name EE-RMF is particularly preferable.

  As shown in FIG. 3 (a), the microbial carrier 1 of the present invention intersects the supporting fiber 20A made of high shrinkage yarn and the landing fiber 20B made of microfiber (ordinary yarn) at a predetermined interval. Can be easily produced from an integrated precursor.

  When heat is applied to the precursor configured in this manner under a predetermined condition, the supporting fiber 20A shrinks, and a predetermined gap is formed between the landing fiber 20B made of non-shrinking normal yarn and as shown in FIG. Composed. In the present invention, such an opening is used as the microorganism living space 21.

  Similarly, as shown in FIG. 4, the supporting fiber 20A made of high shrinkage yarn and the landing fiber 20B made of microfiber (ordinary yarn) are laminated, for example, in a direction perpendicular to the longitudinal axis of the fiber. Adhering at intervals (adhering portions X1, X2,... Xn). When heat is applied to the precursor composed of the laminated body thus integrated under a predetermined condition, the supporting fiber 20A contracts, and as shown in FIG. Is formed. In this case, the fixing method is not particularly limited as long as the object and effect of the present invention can be achieved. Adhesion with an adhesive (for example, hot melt adhesive), fusion by heat application, stitching, etc. You can choose.

  In this case, the heat application can be performed by a simple method of immersing in hot water for several minutes, for example, 2 to 3 minutes, depending on the type and thickness of the high shrinkage yarn to be used.

  Since the microbial carrier 2 formed in this way has the microbial implantation fibers 20B, the microorganisms can easily deposit on the microbial implantation surface of the microbial implantation fibers 20B. It spreads and spreads in voids that are microbial habitats. Therefore, there is an advantage that microbial colonies can be easily formed as compared with microbial carriers of the prior art.

  In the present invention, as shown in FIG. 7, the microbial carrier 2 is applied to the biological water treatment tank 200 as a fixed bed. That is, as shown in FIG. 7 (a), the microbial carrier 1 of the present invention is a plate-like material configured such that the microbial habitat space is exposed on the surface. By arranging such a plate-like microorganism carrier in the entire space of the treatment tank or at a predetermined interval, it can be applied to microorganism treatment of a fixed bed.

  Alternatively, in the example of use of the microorganism carrier 1 of the present invention shown in FIG. 7B, the microorganism carrier of the present invention is formed in a string shape, and this is applied to a fixed bed by fixing means such as a hook.

  By configuring the biological treatment water tank 200 in this way, it is composed of an inexpensive and lightweight material, and can be configured to inhabit a large volume of microorganisms per unit volume, so that biological treatment can be efficiently performed in a small space. It becomes possible.

  In addition to or instead of the microbial carrier shown in FIGS. 3 to 6, a microbial carrier having a loop shape, a shape with the tip of the loop cut, and a pile-cut fiber on the surface of the support as shown in FIG. Can also be used.

  The liquid component thus biologically processed is then finally processed by the water treatment tank 300.

  The water treatment tank 300 according to the present invention is characterized in that oxygen-based gas microbubbles are introduced as shown in FIG. Specifically, the oxygen-based gas is concentrated oxygen and / or ozone. Such oxygen-based gas concentrates oxygen in the air with an oxygen concentrator (PSA) 303, ozonizes the oxygen concentrated by the ozone generator 302, and forms fine bubbles in the water treatment tank 300 by the fine bubble generator 301. Introduce.

  In the case where it is desired to introduce fine oxygen bubbles, oxygen concentrated by the oxygen concentrator (PSA) 303 can be realized by bypassing the ozone generator 302.

  By introducing oxygen-based fine bubbles into the water treatment tank 300 in this manner, organic components from the biological treatment tank 200 are decomposed and microorganisms are removed. Depending on the type of treatment liquid, heavy metal may be removed.

  The water treatment system of the present invention configured as described above efficiently supplies water containing organic components with a simple configuration of the predetermined separators 100 and 100 ′, the predetermined biological water treatment tank 200, and the water treatment tank 300. It can be processed. Moreover, since the solid-liquid separator and the water treatment tank have a small amount of energy consumption, it is possible to stably perform the water treatment even in a place where the energy is not sufficiently reached.

  As described above, the water treatment system of the present invention is compact, has a high degree of design, and has low energy consumption. Therefore, the present invention can be applied to various fields such as small-scale to medium-scale water treatment systems such as food-derived waste liquids and aquaculture circulating water systems.

  Next, an aqueous fluid treatment system according to a second embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 9, the aqueous fluid treatment system according to the second embodiment of the present invention treats water in rivers, lakes and marshes where aquatic plants, algae, underwater suspended solids (Seston) and the like have propagated, and industrial water and agricultural water. The example applied to the system for processing to drinking water is shown.

  The system shown in FIG. 9 is provided with a coagulation tank 200 ′ in this embodiment instead of the biological treatment tank 200. The coagulation tank 200 ′ is a conventionally known water treatment means for the liquid that has been subjected to solid-liquid separation. In addition to the agglomeration tank 200 ′, a conventionally known water treatment means such as a sand filtration device may be added.

  In a preferred embodiment of the present invention, it is preferable to add a metal ion-based flocculant as the flocculant.

  Further, an oxygen-based fine bubble generating device 301B can be provided in the coagulation tank 200 'to further float the floating component in water. The water thus treated is then treated with a water treatment (RO) membrane 301 which is a water treatment filtration means, further treated with a heavy metal adsorbent as desired, and then discharged as treated water. At this time, it is possible to extract the solid that has floated to the agglomeration tank 200 ′ by a swipe or the like (not shown). The extracted solid can be sent to the solid processing tank 400 for processing.

  On the other hand, the solid component separated by solid-liquid is thermally decomposed by a thermal decomposition apparatus in the same manner as the embodiment shown in FIGS. 2 and 3, and is effectively used as oil or carbide.

  Although the present invention has been described with reference to the accompanying drawings, the present invention is not limited to these embodiments.

  For example, the water treatment system of the present invention can be applied as a mobile system by incorporating the aqueous fluid water treatment system of the present invention into, for example, a container as shown in FIG. At this time, an advertisement can be applied to the container or the like. By incorporating it in a container or the like in this way, it can be applied as a mobile, temporary sludge treatment, or middle water treatment system. It is also within the scope of the present invention to place an advertisement on the exposed surface of the container.

100, 100 ′ Solid-liquid separation device 200 Water treatment device 300 Water treatment tank 500 Rapid drying device 600 Thermal decomposition device 700 Oil purification device 701 Hot air feed pipe 800 Oil purification device 801 Oil tank 900 Scrubber

Claims (13)

The aqueous component is separated from an aqueous fluid in which a solid mainly containing an organic component and water are mixed, the separated aqueous component is purified based on a predetermined standard, and the solid component mainly composed of the separated organic component is subjected to thermal decomposition. An aqueous fluid treatment system comprising:
(A) at least one solid-liquid separator that separates the fluid into a solid component and an aqueous component; and (b) a fine bubble generator that generates fine bubbles of an oxygen-based gas selected from the group consisting of oxygen, ozone, and air. A water treatment device for purifying an aqueous component including a microbubble treatment tank having:
(C) a thermal decomposition apparatus for thermally decomposing a solid mainly composed of organic components separated into solid and liquid;
An aqueous fluid treatment system comprising: At least one biological treatment tank in which the water treatment device microbially treats the aqueous component;
A fine bubble treatment tank having a fine bubble generating device for generating fine bubbles of oxygen-based gas selected from the group consisting of oxygen, ozone and air;
The aqueous fluid treatment system of claim 1, comprising: The biological treatment apparatus is (1) a microbial carrier in which a woven or knitted fabric of fiber yarn is formed on the surface of a support, and a microbial habitat is formed between the fibers, and the fiber constituting the microbial carrier Is composed of at least two types of fibers, a supporting fiber and a microorganism-implanting fiber having a surface sufficient for B-microorganisms to be implanted, and the microorganisms have formed a living space between the fibers. 3. A biological treatment apparatus comprising a carrier or (2) a microbial carrier having a loop, a shape obtained by cutting a tip of the loop, and a pile-cut fiber on the surface of the support. An aqueous fluid treatment system according to claim 1.   The said water treatment apparatus contains the coagulation tank which has a fine bubble generator which produces | generates the fine bubble of the oxygen-type gas selected from the group which consists of oxygen, ozone, and air. The aqueous fluid treatment system according to any one of the preceding claims. The water treatment device has a fine bubble treatment tank having a fine bubble generating device for generating fine bubbles of oxygen-based gas selected from the group consisting of oxygen, ozone, and air,
A filtration device for filtering water treated by fine bubbles of oxygen-based gas under pressure;
The aqueous fluid treatment system according to any one of claims 1 to 4, wherein the aqueous fluid treatment system comprises:   The aqueous fluid treatment system according to any one of claims 1 to 5, wherein the solid-liquid separation device includes a screen-type solid-liquid separation device that separates fluid by a screen.   The screen-type solid-liquid separation device includes a screen for separating a solid and a liquid, and a storage unit for storing the separated liquid, and the storage unit includes a solid component from a stored liquid component. The aqueous fluid treatment system according to claim 6, further comprising: a fine bubble generating device for levitating the solid and a solid component supplementing unit for collecting the solid matter that has floated.   The aqueous fluid treatment system according to any one of claims 1 to 7, wherein the solid-liquid separator includes a decanter-type solid-liquid separator.   The aqueous fluid treatment system according to any one of claims 1 to 8, wherein the aqueous fluid treatment system is installed in one or a plurality of containers.   The aqueous fluid treatment system according to claim 9, wherein an advertisement is applied to an exposed surface of the container.   11. The aqueous fluid treatment system according to claim 1, wherein the thermal decomposition apparatus is an oiling apparatus that converts an organic component into oil or a carbonization apparatus that carbonizes an organic component. The pyrolysis device comprises a drying device for drying the solid component separated into solid and liquid,
A pyrolyzer main unit for pyrolyzing the solid component dried by the dryer;
A hot air feed pipe for sending heat generated in the pyrolysis device to the drying device;
A purification device for purifying a gas connected to the drying device through a pipe and used for drying in the drying device;
The aqueous fluid treatment system according to any one of claims 1 to 11, further comprising:   The aqueous fluid treatment system according to any one of claims 1 to 12, wherein the thermal decomposition apparatus includes a power generation apparatus that generates power using heat generated by thermal decomposition.

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