JP3064723U - Wastewater treatment fiber block and wastewater treatment equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Various facilities are used for equipment for purifying wastewater generated by the action of microorganisms, improving the durability of wastewater treatment facilities and ensuring long-term smooth and efficient drainage. Provided is a fiber material block capable of purifying. [Structure] Diameter 0.1 to 2 that is in a loose and irregular tissue state
A plurality of loosened tissue units 10 formed by forming a condensed portion by a binder at a fiber intersection portion of a synthetic fiber aggregate of mm and connected in a circumferential direction to form a rotation processing portion,
The fibrous structure of the loosened tissue unit 10 maintains the fiber interval at the time of forming the coagulated portion by the binder at the fiber intersection, and the peripheral side portion of the loosened tissue unit 10 is formed when the coagulated portion is formed. The reinforced coagulated portion 3 is in a compressed state in which the porosity is reduced by 15% to 88%, and is additionally impregnated with a binder and is additionally coagulated.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the invention of a fiber material block for wastewater treatment and a wastewater treatment device, and a fiber material block and wastewater treatment device used for a facility for purifying wastewater generated from various facilities by utilizing the action of microorganisms. An object of the present invention is to provide a fibrous material block which can improve the durability of the fiber and can achieve a smooth and efficient wastewater purification purpose for a long period of time.

[0002]

[Prior art]

 Wastewater from various food manufacturing factories, night soil treatment facilities, ranches, restaurants, etc. contains a considerable amount of organic matter, and such wastewater pollutes rivers, lakes and marshes and other living environments. It is becoming increasingly popular to purify wastewater, and the use of microorganisms such as aerobic fungi as such a purification treatment technique has been gradually and widely put into practical use.

[0003] That is, the present inventors have proposed the following aerobic fungus purifying apparatus as disclosed in Japanese Utility Model Publication No. 1-165559, Japanese Patent Publication No.-13600, and Japanese Patent Publication No. 23594, and each of them has been put into practical use. With regard to the efficient treatment results and the reduction of operation and operation costs, the effects on actual operation have been fully understood in each facility, and attention has recently been paid to the technology for preventing environmental pollution in recent years.

[0004]

[Problems to be solved by the invention]

 The above-mentioned prior art uses a synthetic resin fiber material, which is bonded in a loosened state with a synthetic resin-based adhesive at the intersection as well. However, it is not always possible to secure sufficient durability during actual operation, despite the fact that it shows sufficient corrosion resistance in water such as wastewater. That is, according to the present inventors, etc., studying the damage state of the synthetic resin fiber body generated as a result of the operation operation for at least several months or more, it was found that the loosened structure was obtained when the spinning treatment was performed in the treated water such as drainage water. It was confirmed that the occurrence of damage was concentrated on the outer circumference of the rotation radius of the disk-shaped rotating body in the state.

[0005] The outer circumference of the rotation radius as described above is the arc-shaped portion on the outer circumference side of the fan-shaped body shown in FIG. This is a pressure-biased welded part where the synthetic fiber material is once tightened with an adhesive to a predetermined thickness in an irregular loose-mixing state and then shaped, but the peripheral edge is compressed to form a plate-like, almost-closed contact. It is understood that it is the highest strength part because it is densely crimped, and it is difficult to solve such preferential damage of the high strength part. Not get.

[0006]

[Means for Solving the Problems]

 The present invention has been studied to solve the problems in the conventional technology as described above, and as a result of examining the reason for the occurrence of the above-described damage, it has been found that when the loosened tissue is rotated while being immersed in the water to be treated. The present invention has successfully achieved the prevention of damage by canceling the pressure generation state of water acting on the water, as described below.

[0007] (1) In a synthetic fiber aggregate having a diameter of 0.1 to 2 mm, which constitutes a loose and irregular tissue state, a loosened tissue unit formed by forming a condensed portion by a binder at a fiber intersection and connecting the fibers. A plurality of unit bodies are arranged in a circumferential direction to form a rotation processing unit. In which the fiber spacing is maintained when the coagulated portion is formed by the binder, and the peripheral side portion of the above-described loosened tissue unit is 15% or more and 88% or less of the porosity when the coagulated portion is formed. A fibrous material block for wastewater treatment, characterized in that the fiber material block is in a reduced compressed state, and is a reinforced coagulated portion which is additionally impregnated with a binder and refilled and coagulated.

[0008] (2) The fiber intersection in the fiber assembly as a whole, which is formed by forming a condensed portion by a binder at the fiber intersection in the fiber aggregate having a loose and irregular texture state and is connected to the above fiber intersection A state in which the fiber spacing is maintained at the time of formation of the coagulated part by the binder at the part, and, furthermore, moderate compression molding and additional impregnation of the binder on the peripheral side of the loosened tissue unit are performed to replenish and coagulate. A plurality of rotation processing units in which a plurality of fiber material block units each having an agglomeration portion are disposed on the peripheral side of the rotating shaft are provided in multiple stages, and a spacer is interposed between the loosened tissue units forming the rotation processing unit. A wastewater treatment apparatus, wherein a strengthened coagulated portion is formed, which is tightened and fixed by a tightening means, and the spacer interposed portion is additionally impregnated with a binder to replenish and coagulate.

[0009]

[Embodiment of the invention]

 Specific embodiments of the present invention as described above will be described with reference to the accompanying drawings as appropriate. The specific structure of the wastewater treatment fiber material block according to the present invention will be described with reference to FIGS. A synthetic fiber material 1 having a diameter of about 0.1 to 2 mm, particularly about 0.3 to 1 mm, a length of about 10 to 500 mm, particularly about 50 to 200 mm, such as polyethylene or polyvinyl, and having a curled shape; A material that is effectively bent to a porosity of 98% or more in a random mixed state by bending and bending as described above is mixed irregularly while maintaining a substantially constant state. A resin-based or other corrosion-resistant adhesive is sprinkled and adhered to the arrangement, and the adhesive attached to the fibrous material is caused to flow along the length of the fibrous material, thereby gathering at the intersection of the fibrous material. Settled 5 as shown in Fig. 5 and the whole fibrous material is connected and integrated in a constant thickness state, and the thickness is several mm to 20 mm, especially about 4 to 15 mm. The loosely-disintegrated tissue unit 10 molded as a body is used.

With respect to the density of the loosened tissue unit 10 obtained as described above, that is, the porosity, when the material is a synthetic fiber material having a diameter of 0.3 to 1 mm as described above, the fiber material has a considerable value. Because of its strength and toughness, it generally has a sufficient space of 97 to 98%. Such a void structure allows air to be introduced into the water to be treated and the water to be treated into the air. It is clear that this effectively contributes to the dispersion contact of the particles.

That is, as described above, the loosened tissue unit 10 is rotated in a state where a portion below the rotation axis is partially immersed in the drainage, and the drainage and the air are alternately introduced into the fibrous tissue. In order to introduce and act mainly on aerobic microorganisms, generally, for example, about 20 or more or more disk-shaped parts are rotated in a semi-circular tank 25 in which a lid 26 is provided with a lid 26 provided. However, it is assumed that such a disc-shaped body is divided into a plurality of pieces along the radial direction, and FIG. 1 shows a disc-shaped body formed into a fan shape obtained by dividing the disc-shaped body into six equal parts. This is separately prepared as shown in FIG. 2 by dividing the disk-shaped body into three equal parts, or as another divided body of two or more equal parts.

However, as described above, the peripheral side 3 of the divided unit body 10 is inferior in strength if it is left in an array molded state in a loosened state with a porosity of 97% or more, as described above. Is formed by moderate compression molding so as to have a porosity of 80% or less, thereby consolidating the peripheral side 3 to form a strengthened peripheral side, and a reinforcing condensed part 3 further impregnated with a binder. As a specific method relating to the additional impregnation attachment, a peripheral portion of the unit body 10 is sequentially immersed for a predetermined time in a state where the binder is contained in a gutter-shaped binder receiver, and the predetermined binder is impregnated and attached. It is made to dry and bind.

[0013] In the above-mentioned conventional divided unit body in which the peripheral side is simply pressed and reinforced, even though reinforcement (consolidation) due to the formation of a plate is sufficient, the material fiber is hardly formed. Since it is deformed and plate-shaped, the toughness due to fiberization is considerably deteriorated and deteriorated, and sufficient voids are greatly closed. The flow (outflow from the fibrous body) of the water to be treated that has entered is greatly restricted, and the weight (or flow resistance) of the water to be treated largely acts on the fiber structure of the material as an acting force, and acts as a fiber tissue breaking force. It is presumed that this would cause damage to the peripheral part as described above. On the other hand, in the case where the porosity is increased from 97% or more to 85% or less as described above, the toughness of the original fiber is maintained without almost deteriorating, and the considerable voids are further increased. Since the water is maintained, the drainage and inflow of the water to be treated that has entered the tissue during the spinning process is also properly secured, so that damage to the fibrous tissue during the spinning process is appropriately prevented, and To ensure long-term durability.

Further, since the fiber itself hardly deteriorates in this way, the toughness of the fiber is maintained, and the binder is further reduced with respect to the one in which the porosity is reduced as described above and the fibers are close to each other. By additionally impregnating the binder, the strength of the binder due to coagulation is improved, and the durability during the rotation treatment in the water to be treated as described above can be improved.

[0015] That is, an example of the structure of the reinforcing coagulated layer 3 and the other unit intermediate portion 2 obtained as described above is as shown in FIGS. 5 and 6, and the structure of the intermediate portion 2 is synthesized. As shown in FIG. 5, the binder applied to the fibrous material 1 flows along the surface of the fibrous material 1, gathers at the intersections of the fibrous material 1 to form a bound state, and is consolidated. By forming the portions 4 at the intersections, the entirety of the fiber material 1 is integrally connected and connected. However, the reinforced coagulated portion 3 is connected and integrated by the solidified portion 4 as described above. Further, the additional impregnated adhesive layer 5 of the above-mentioned binder is formed in a composite form as shown in FIG. The strength is improved by the composite strengthening structure in which the additional impregnated adhesion layer 5 and the additional impregnation layer 5 are combined.

That is, the binder attached to the peripheral side portion of the divided unit body 10 in the reinforced coagulation portion 3 appropriately flows along the fiber surface and tends to gather at the intersection. Is similar to the case where the loosened tissue unit 10 is obtained, and it is clear that the binding at the intersections of the fibers is appropriately reinforced. As described above, a reinforced condensed portion is additionally formed at each fiber intersection in a state where the porosity is reduced to 30% or more and the porosity is reduced to 80% or less from a state where the porosity is 97% or more. As shown in FIG. 6, a dense fiber structure and a high-density reinforced condensed portion 5 are formed, and the overall strength of the unit body 10 is effectively improved, so that the unit body 10 is appropriately prevented from being damaged during the rotation operation.

In addition, since the above-mentioned reinforcing coagulated portion 3 is formed by adhering a binder to the surface of the fiber material in a state where the porosity of 97% or more is appropriately compressed, the coagulation is performed. In the condensing part 3, a state in which a certain degree of liquid permeability is ensured. In the rotation operation and the purification treatment, the wastewater to be treated appropriately flows through to the outer diameter side, and is discharged. Considering that the substantially entire amount of the treated wastewater or the centrifugal force greatly acts on the outer peripheral side of the rotation radius of the divided unit body 10, it is caused by the substantially total amount of the wastewater received inside the outer peripheral portion. Avoid damage to the unit 10. Also, as described above, since the drainage liquid also passes through the strengthened condensed layer 3 appropriately, the strengthened condensed layer 3 is sequentially positioned in the air, so that air intake (supply of air for microorganisms) can be effectively performed. Can be

In addition, according to the present invention, as described above, a plurality of the divided unit bodies 10 are assembled in a rotating disk shape, and a spacer 8 is set as shown in FIGS. In the pressure receiving range 12 set by the spacer 8, the porosity reaching 97% or more is reduced by about 30 to 70% in the same manner as described above. By forming the additional impregnated attachment layer 5 that has been bound, the stable setting relation by the spacer 8 is formed. As shown in FIG. 4, the tightening of the fiber block 10 by the spacer 8 is performed by sandwiching the fiber block 10 between the flanges 20 and 20 of the spacers 8 and 8 which are threadedly connected to the male thread 21 and the female thread 22. Pressing and fixing.

The flange 20 of the spacer 8 has a diameter corresponding to 1.5 to 4 times the diameter of the shaft portion 23 of the spacer 8 in FIGS. By pressing the divided unit body 10 from both sides with an area of 20, the divided unit body 10 is pressed in a stable state, and stable even under conditions where the structure of the fiber material block is not particularly rigid. It is possible to set an appropriate clamping pressure, and to ensure the flow of contact with air and liquid in most areas of the fiber material block as shown in FIGS.

FIG. 7 shows an example of a wastewater treatment facility constituted by using the fiber block 10 according to the present invention, in which a plurality of (for example, six) fan-shaped fiber blocks 10 as described above are arranged. At least 10 or more disk-shaped rotating bodies 30 are arranged in a row, and a tightening rod 9 is inserted between both end plates 7 and 7 to be integrally assembled. It is rotated in the drainage of the water storage 25 guided from the inlet 18 to the outlet 19 for processing.

According to the present invention as described above, a loosened tissue unit formed by forming a condensed portion with a binder at a fiber intersection portion in a fiber aggregate having a loosened and irregular tissue state and connected thereto. Further, in a structure in which a plurality of unit bodies are arranged in the circumferential direction to form a rotation processing portion, the fiber structure in the whole of the above-mentioned loosened tissue unit body is a binder at the fiber intersection point described above. A bed that is suitable for allowing the prescribed microorganisms to grow and grow effectively in the form of a loosened form that retains appropriate bulkiness by maintaining a state where the fiber spacing is substantially maintained during the formation of condensed parts As a result, it is possible to secure a preferable network structure, hold a large amount of microorganisms, and apply a high BOD load.

Further, according to the present invention, in the above-mentioned microbial bed tissue using a synthetic fiber material having a diameter of 0.1 to 2 mm, particularly 0.3 to 1 mm, it is generally provided on the peripheral side of the loosened tissue unit. The above-mentioned relaxation is achieved by compression molding in which the porosity in the loosened state, such as a porosity of 97% or more, is reduced by about 15 to 88%, and a strengthened condensed part which is additionally impregnated with a binder and refilled and condensed. Rotation for a long period of time by maintaining appropriate microbial retention and high BOD load while maintaining appropriate aeration and liquid permeation as well as effectively improving strength and durability at the peripheral side of the tissue unit. Voids are provided between the fibers that can withstand the operation and that allow the liquid to flow and aerate between the fibers that maintain the essential texture of the unit. Blockage and increase the rotational load. DOO is less, thus that provide high by reduction damage of the unit body at the time of driving operation even Rashi whether this point with a small energy required of durability equipment driving operation.

Further, in the present invention, the rotation processing section is provided in multiple stages, and a spacer is interposed between the loosely-laid tissue units forming the rotation processing section, and is fixed and tightened by tightening means. In the same manner as described above, the original general porosity state is reduced by 15 to 88% and the binder is additionally impregnated to form a reinforced coagulated portion which is replenished and coagulated. Basically, it is possible to provide equipment capable of performing a durable and orderly treatment in this loosened tissue state and rotated by maintaining a proper distance maintaining state by a spacer.

Further, since the diameter of the flange portion of the spacer for tightening the strengthened condensed portion is set to about 1.5 to 4 times the diameter of the shaft portion, the loosened tissue unit is pressed by the relatively wide flange portion so that it is tightened and fixed, so that it is stable. In addition, it is possible to perform a preferable and efficient purification process by smoothly setting contact and circulation with air and drainage in most regions of the fiber material block other than the clamping and tightening portion.

[0025]

[Effect of the invention]

 According to the present invention as described above, the loosened and irregular tissue fiber aggregate for purifying various wastewaters effectively reinforces the damage-causing site during the rotation operation, and furthermore, has a proper ventilation liquid permeability. In addition, the durability of the fiber assembly is ensured to enhance the durability of the fiber assembly. This is a device that can be industrially effective because it can be secured in all areas.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a fiber material block for wastewater treatment according to the present invention.

FIG. 2 is a plan view showing another fiber block for wastewater treatment according to the present invention.

FIG. 3 is a partially cutaway side view of a spacer used between fiber material blocks in the present invention.

FIG. 4 is a partial cross-sectional view showing a state in which a fiber material block is sandwiched and mounted between spacers of FIG. 3;

FIG. 5 is an explanatory view showing an enlarged intermediate structure of the loosened tissue unit in the present invention.

FIG. 6 is an enlarged explanatory view showing the structure state of the strengthened setting part which is partially compressed as in the peripheral side part and additionally impregnated with a binder and replenished and set in the loosened tissue unit body of the present invention.

FIG. 7 is a partially cut-away oblique view showing an example of a water treatment facility constituted by using a fiber material block according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Synthetic fiber material 2 Rotation radius outer part (state of water-permeable structure) 3 Reinforced condensed part 4 Consolidated part (primary) 5 Additional impregnated adhesion layer 7 End face plate 8 Spacer 9 Tightening rod 10 Division unit body 11 Insertion hole 12 Tightening pressure receiving range by spacer 14 Reinforced flange plate 15 Horizontal cylindrical container 16 Center shaft 17 Motor 18 Inlet pipe 19 Discharge pipe 20 Flange section 21 Male screw section 22 Female screw section 23 Spacer shaft section 25 Water storage section 26 Lid section

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[Procedure amendment]

[Submission date] August 4, 1999 (1999.8.4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

Claims (2)

[Utility model registration claims] Claims: 1. A diameter that constitutes a loose and irregular tissue state.
A loosened tissue unit formed by forming a condensed portion by a binder at a fiber intersection in a synthetic fiber assembly of 0.1 to 2 mm and connecting the plurality of units in a circumferential direction; In the one to form the processing portion, the overall fiber structure of the above-mentioned remission tissue unit is in a state in which each fiber interval is maintained at the time of forming the coagulated portion by the binder at the fiber intersection portion, In addition, the peripheral side portion of the loosened tissue unit is 15% or more of the porosity at the time of forming the condensed portion.
%. A fiber material block for wastewater treatment, characterized in that the fiber material block has a reinforced coagulated portion which is in a compressed state reduced by not more than 10% and replenished and coagulated by additionally impregnating a binder. 2. The fiber intersection portion of the entire loosened tissue unit formed by forming a condensed portion by a binder at the fiber intersection portion of the fiber aggregate having a loose and irregular texture state and connected to each other. Reinforced coagulation in which the fiber spacing is maintained when the coagulated portion is formed by the binder in step (1), and moderate compression molding and additional impregnation of the binder on the peripheral side of the loosened tissue unit are carried out. A plurality of rotation processing units in which a plurality of the fiber material block units forming the part are disposed on the peripheral side of the rotation shaft are disposed in multiple stages, and a spacer is interposed between the loose tissue units forming the rotation processing unit. A wastewater treatment apparatus, wherein a strengthened coagulation portion is formed by tightening and fixing by a tightening means, and additionally impregnating the spacer interposed portion with a binder to replenish and coagulate.