JP2018065077A - Sludge water absorption sandbag - Google Patents

Abstract

[PROBLEMS] To absorb and adsorb moisture, fine organic matter, silt and other fine suspensions placed on sludge water staying in a narrow space such as under the floor of a house or a floor of a hazardous material storage. By simply dragging behind, the sludge and silt suspensions can be entangled and removed from the adhering part while absorbing and holding moisture and fine suspensions without leaking. Providing a sludge water-absorbing sandbag with significantly improved power saving and safety. [Solution] A sludge water-absorbing sandbag has an attachment part for adhering suspensions such as fine sludge and suspended solids. It has the structure which has the water-permeable bag-like part with which the outer peripheral surface was equipped, and the water absorbing resin accommodated in the said bag-like part. [Selection] Figure 1

Description

  The present invention relates to a sludge water absorbing sandbag. More specifically, suspended sludge suspended in sludge under the floor that has been submerged under heavy rain disasters, etc., and other floors of disaster sites, construction sites, hazardous materials storage, pig farms, etc. The present invention relates to a sludge water absorbing sandbag capable of absorbing and holding leaked heavy metal concentrated sludge water, radioactive polluted suspended sludge water, VOC contaminated sludge water and the like and easily discharging sludge and suspended matter to the outside.

In recent years, floods such as torrential rains and flooding of rivers due to typhoons flooded the floor and under the floor, drawing water, then coarse particles such as sand, coarse particles such as filth, Sludge water containing fine suspended solids such as organic sludge and silt stays and requires a great deal of effort to eliminate it. Specifically, a large amount of sludge water stays under the floor after the floor and underfloor are flooded and the water is drawn. Treatment of sludge water staying under the floor surrounded by concrete foundation is either naturally dried or discharged with a pump, etc., but when discharged with a pump etc., it is difficult to completely discharge the sludge water. It will stay in the depression at a depth of several mm to several tens of mm. In particular, recent residences have a structure where the living surface is different from the folding type, and there are many floors and cannot be placed under the floor, and only the underfloor inspection port installed in the closet can be used, and it is difficult to discharge the accumulated sludge. Extremely. In addition, pests and molds are generated due to the retention of accumulated sludge water, which is unsanitary, and during that time, there is a problem that it cannot be used as a residence.
Also, it is absorbed by cloths, lime, rice husks, newspapers, and other familiar materials in floor finishing work at construction sites, construction sites, etc., and livestock sludge drainage treatment at pig farms, etc. The work of scraping and collecting with a brush or broom, scooping and discharging with a scoop, and then wiping with a mop has been a problem, requiring a lot of manpower and time.
In addition, when removing heavy metal concentrated sludge water, radioactive polluted suspended sludge water, VOC contaminated sludge water that has accumulated on the floor surface of hazardous material storage etc. due to leakage, etc. The aqueous layer was difficult to remove completely, especially the removal of fine and dangerous dirt was even more difficult.

In recent years, various studies have been made to solve these problems.
For example, in (Patent Document 1) and (Patent Document 2), a mixture of thinned wood chips and starch is used to increase the water absorption rate and rapidly expand, and after use, it is embedded in the soil for easy biodegradable treatment. A sandbag is disclosed. In addition, (Patent Document 3) and (Patent Document 4) disclose a soil solidifying agent that quickly solidifies sludge-like sludge just by spraying on sludge-like sludge, and improves the efficiency of removing and removing sludge. Has been.

JP 2007-92486 A JP 2007-138690 A Japanese Patent Laid-Open No. 2001-104998 JP 2005-1113025 A

However, the technique described in the above prior art has the following problems.
That is, in the techniques of (Patent Document 1) and (Patent Document 2), those using plant polymer polymers such as starch are weak in water supply capacity and water retention capacity, and lift sandbags during drainage work. When pressure is applied, water that is not retained is drained, and the work is complicated and lacks workability. Moreover, since only the water | moisture content in sludge water is absorbed, it had the subject that suspensions, such as a filth, a silt-like thing, and a sandy thing, cannot be excluded. In addition, the suspension was deposited on the surface of the polymer, resulting in clogging, and the problem was that the amount of water absorption was reduced and workability was lowered.
・ The technology of (Patent Document 3) and (Patent Document 4) is to spread the solidifying agent on the sludge water, then mix it with the sludge water and leave it to solidify. Although it has a work process of discharging, it has a problem that workability is extremely poor in a narrow place such as under the floor and it is difficult to employ.
In addition, even floors such as construction sites, construction sites, and hazardous material storages have had the problem of requiring post-treatment such as silt and fine-grained materials and lacking in workability and safety.
In an accident at a nuclear power plant, radioactive contaminated mud collected in drainage gutters, wiring pits, and reservoirs in the building cannot be directly contacted by employees, so only suction processing or other work can be performed from a remote location. In particular, since fine contaminants and the like are extremely difficult to process, there has been a demand for a processing method that streamlines operations and is excellent in safety.

  The present invention solves the above-mentioned problems and demands of the prior art, and is placed on sludge water or sludge accumulated in a narrow space such as under the floor of a house or a floor surface of a hazardous material storage, etc. By absorbing and adsorbing moisture, fine organic matter, and fine suspensions such as silt, the water and fine suspensions are absorbed and retained without causing liquid leakage, and dirt and silt on the floor surface are suspended. The purpose of the present invention is to provide a sludge water-absorbing sandbag that can remove turbid matter by entanglement with the adhering portion, significantly improve the workability of sludge water removal, and save greenery and is excellent in safety.

In order to achieve the above object, the present invention has the following configuration.
The sludge water-absorbing sandbag according to claim 1 of the present invention has an attachment part for adhering a suspension such as fine-grained sludge and suspended solids, and a water-permeable bag-like part provided with the attachment part on the outer peripheral surface, And a water absorbent resin housed in the bag-like portion.
This configuration has the following functions and effects.
(A) The surface adhering part can entangle and hold coarse suspension such as filth and silt, and fine sludge and suspended solids can be removed by simply dragging the sludge water absorbing sandbag on the floor surface. Can be attached and eliminated.
(B) Since the bag-like portion is water-permeable, it can be led to a water-absorbing resin layer that has been encapsulated by passing a fine suspension or sewage made of fine organic matter or silt.
(C) The fine suspension or sewage that has passed through the bag-like portion is absorbed and adsorbed by the water-absorbent resin and is firmly held in the gel.
(D) By adjusting the amount of the water-absorbent resin so that the amount of water absorption is 1 to 60 kg, the sludge water absorption sandbag after water absorption can be easily transported and workability is improved.
(E) Since the water-absorbent resin sandbag is gelled, the water-absorbent resin sandbag can be made hard to transport, and the gelled body of the water-absorbent resin is excellent in water retention. There is no leakage of sewage or fine suspension during transportation, and transportation to the outside is easy and excellent workability and safety. In particular, it has been found that workability, safety and labor saving are remarkably improved when the accumulated sludge water is discharged from narrow places such as under the floor of houses and floors of dangerous goods storage.

Here, the adhering portion is preferably a fibrous material raised or fixed on the surface of the bag-like portion, or a material having a fine porous structure that is excellent in water absorption and has a capillary water absorption and adsorption action.
Further, a loop pile-like flocked portion is formed on the surface of the sheet constituting the bag-like portion with a fiber or fine mesh, and the height is 1 to 10 mm, the width is 1 to 10 mm, and the pitch is 1 on the upper surface of the bag-like portion sheet. One of which is bent to have a wave shape of 10 mm and fixed to the sheet surface of the bag-like portion by welding or adhesion, or the upper surface of the bag-like portion is fluffed with a raising machine.
Moreover, you may use the net | network body whose mesh | network size is 0.1-10 mm as a loop-shaped object.
The adhering portion allows the sludge water to be bound and entangled by the capillary phenomenon between the fibers and the van der Waals force between the sludge and the like.

As the material for the bag-shaped part, water, fine suspended solids, fine suspension such as silt, but water permeable woven or non-woven fabric having a pore diameter that does not allow water-absorbing resin particles to pass through, a soft synthetic resin sheet, A material having fine pores that allow the suspension to pass through an impermeable sheet such as a rubber sheet but not the water-absorbing resin particles is used. As the woven or non-woven fabric having water permeability, a synthetic resin having hydrophilicity is preferably used.
Specifically, as the non-woven fabric, those made of fibers such as polyester, polyolefin, polyvinyl alcohol, polyacrylate, polyurethane, and polyamide obtained by a spun pond method, a hydroentanglement method, or the like can be used. As woven fabrics, natural fibers such as cellulose fibers and protein fibers, regenerated fibers such as viscose rayon, semi-synthetic fibers such as cellulose acetate fibers, synthetic fibers such as polyamide, polyvinyl alcohol, polyester and polyacrylate, PET bottles In addition, recycled products obtained by regenerating synthetic resins such as packaging materials can be used.

As the water-absorbing resin, materials suitable for electrolyte-containing water such as fresh water such as flood and sea water of storm surge are selected.
Examples of water-absorbing resins that absorb fresh water include polyaspartate-based, polyglutamate-based, polyalginate-based, starch-based, cellulose-based natural product resins, and starch-based starch-polymerized acrylates. Synthetic carboxyls such as cellulose, acrylic acid polymers, polysulfonates, maleic anhydrides, polyacrylamides, polyvinyl alcohols, modified polyethylene oxides, etc. A synthetic resin having a hydrophilic functional group such as a group, a hydroxyl group, an ether group or an amide group is used.
As the water-absorbing resin that absorbs the electrolyte-containing water, an acrylamide / tertiary butylsulfonic acid hydrophilic copolymer, a nonionic water-absorbing resin, or the like is used.

The sludge water-absorbing sandbag according to claim 2 of the present invention has a structure according to claim 1 in which a water-permeable auxiliary material is dispersed and mixed in the water-absorbent resin.
With this configuration, in addition to the operations and effects obtained in the first aspect, the following operations and effects are provided.
(a) When the water-absorbing resin layer in the bag-like portion is immersed in water, only the surface of the water-absorbing resin first absorbs water to cause gelation and swelling, thereby forming a water-impermeable layer. Further, there is a problem in that it prevents passage of silt and fine suspended matters, obstructs the entire gelation speed, takes time for gelation, and takes a long time to absorb sludge water. However, by dispersing and mixing the water-permeable auxiliary agent in the water-absorbing resin, the sludge water is diffused through the inside and outer surface of the water-permeable auxiliary agent and throughout the water-absorbent resin layer. The sludge water absorption rate can be remarkably increased, and the working time can be remarkably shortened. .
(B) Since the water-permeable auxiliary material is dispersed and mixed in the water-absorbent resin, the water-absorbent resin absorbs sludge water and gels and expands. Fine suspensions such as fine organic sludge and silt can be captured and retained between the auxiliary materials.
(C) Since sludge water is absorbed by the entire water-absorbent resin, the sludge water absorption rate is high, and fine particles such as coarse-grained suspensions, silt and fine suspended matter are accompanied by water, and the adhering part Coarse-grained suspension and fine suspension are entangled between the fibers of the adhering part and the bag-like part and trapped, and silt and fine suspended matter pass through the bag-like part and become the water-absorbent resin layer. Attracted and captured.
(D) Since a part of the water passage aid is exposed on the surface of the water absorbent resin layer, the surface of the water absorbent resin layer is prevented from being clogged, and the water absorbing ability of the water absorbent resin can be maintained.

  Here, the blending amount of the water passage aid and the water absorbent resin is 99.5 vol% or less, preferably 90 vol% or less, although it depends on the type of the water absorbent resin. If the water-absorbing resin exceeds 90 vol%, when the water-absorbing resin starts to absorb water, gelation and expansion of the surface are likely to occur, and if it exceeds 99,5 vol%, the gel-expanding of the surface of the water-absorbing resin layer is rapidly performed. The impermeable layer is formed on the surface of the water-absorbent resin layer and the gelation speed of the entire water-absorbent resin tends to decrease, and the clogging phenomenon tends to occur. Since it decreases, it is not preferable.

The water passage aid is mixed in an amount of 0.7 to 10 vol% or more.
As the water passage aid, it is preferable to use a substance having a specific gravity close to that of the water absorbent resin. This is because it is easy to be homogeneously dispersed and mixed with the water absorbent resin. Specifically, hydrophilic pulverized pulverized material, porous material such as rice husk, pearlite, pulp sludge powder, and the like are used.
Of these, fibrous materials such as talc powder mainly composed of cellulose are preferably used.
When used for sludge water with a large specific gravity, a weight such as sand may be added as appropriate.

The sludge-water-absorbing sandbag according to claim 3 of the present invention is the plant material of claim 1, wherein the adhering portion is fixed to the surface of the bag-like portion, such as cotton, cellulose fiber, straw, bamboo fiber, kenaf, and palm. Fibers, chemical fibers such as rayon, non-woven fabrics of inorganic fibers such as rock wool and glass wool, woven fabric, coconut shell pulverized powder, porous materials such as rice husks, felts and open-cell sponges, hydrophilic melamine resins, urethane resins, It has a structure formed of a material such as a fibrous material having a fine porous structure having excellent water absorption formed by any one or more of fibers such as cellulose and having a capillary water absorption and adsorption action.
With this configuration, in addition to the operations and effects obtained in the first aspect, the following operations and effects are provided.
(A) Since the attachment portion is provided on the surface, the suspended matter in the sludge water can be entangled.
(B) Since the coarse-grained or fine suspension is entangled with a large number of fibrous materials at the adhering portion, the suspension retainability is excellent.

Here, as the adhering portion, one that is easily wetted and has a large surface tension is used.
This is to quickly disperse and infiltrate moisture, fine organic matter and silt in the sludge water throughout the water-absorbent resin layer.
Although the height of the fibrous material of the adhesion part varies depending on the material, it is preferably about several mm to 10 mm. This is because the suspension in the sludge water is easy to entangle and hold.
The basis weight of the fibrous material in the adhesion portion varies depending on the material, but is 10 to 100 g / m ^2.
Are preferred. This is because it has been found that coarse particles in the suspension are easily entangled and captured.
The rigidity of the fibrous material at the adhesion portion varies depending on the material, but it is preferable to use a fiber diameter of about 0.1d to 15d.
Also, fibers, non-woven fabrics, and fine mesh bodies are formed on the surface of the sheet constituting the bag-like portion as a loop pile-like three-dimensional flocked portion, and the height of the bag-like portion sheet is 1 to 10 mm in height and width. 1 to 10 mm and the pitch is 1 to 10 mm folded so that one surface is fixed to the sheet surface of the bag-like part by welding or bonding, or the upper surface of the bag-like part is fluffed with a raising machine Is used.
In addition, fibers piled up horizontally on waves of a predetermined height and three-dimensionally flocked in a pile shape by bonding or welding onto a water-permeable fabric strongly retains the suspension on coarse particles and falls off This is preferable because it is not allowed to occur.

The sludge water absorbing sandbag according to claim 4 of the present invention is the bag according to claim 1, wherein at least one of a deodorant, a disinfectant, a neutralizer, and a radioactive substance adsorbent is mixed in the bag-like portion. It has a configuration.
With this configuration, in addition to the operations and effects obtained in the first aspect, the following operations and effects are provided.
(A) Since the deodorant is mixed in the water-absorbent resin, it is deodorized when the water-absorbent resin sandbag is taken out, so that there is no unpleasant odor and excellent handleability.
(B) Since a bactericidal agent, a neutralizing agent, and a radioactive substance adsorbent are mixed in the water-absorbent resin, it is excellent in safety.
Here, as the radioactive material adsorbent, zeolite, Prussian blue, crystallized silicotitanate, synthetic zeolite, titanate or the like is used.

The sludge-water-absorbing sandbag according to claim 5 of the present invention is the biodegradable material according to any one of claims 1 to 4, wherein any one or more of the adhering portion, the bag-like portion, and the water-absorbing resin is a biodegradable material. It has the structure formed by.
With this configuration, in addition to the operations and effects obtained by the invention according to any one of claims 1 to 4, the following operations and effects are provided.
(A) A water-absorbent resin sandbag that absorbs and absorbs sludge water stably and can be embedded in a landfill as it is and has excellent workability.
Here, a microbial system, a natural product system, or a chemical synthesis system is used as the biodegradable polymer.
Specifically, polylactic acid, poly (3-hydroxybutyrate-co 3-hydroxyhexanoate), polyglycolic acid, polybutylene succinate, polybutylene succinate adipate, polybutylene adipate terephthalate, polyethylene terephthalate succinate, etc. Can be taken.
Among these, polylactic acid is preferably used because it is susceptible to biodegradation by microorganisms and ultraviolet rays in the soil.

The sludge water absorbing sandbag according to claim 6 of the present invention is the invention according to any one of claims 1, 3 to 5, wherein one or more locking holes are provided in at least one edge of the peripheral edge of the bag-like portion. It has the composition provided with.
With this configuration, in addition to the operations and effects obtained by the invention according to any one of claims 1, 3 to 5, the following operations and effects are provided.
(A) Fasten a locking tool such as a rope in the locking hole, throw the water-absorbing resin sandbag into the sludge water retention part, absorb the sludge water, and then clean the floor while dragging the locking tool At the same time, the water-absorbent resin sandbag that has absorbed sludge water can be taken out.
(B) When a water-absorbent resin sandbag equipped with a locking tool in the locking hole is used to remove radioactive sludge water, the operator can operate and work from a place away from the staying sludge water. It prevents damage such as exposure, and is excellent in workability and safety.
Here, one or more locking holes are formed on one edge.

Partially broken plan view of sludge water absorbing sandbag of Embodiment 1 AA cross-sectional schematic diagram of FIG. Central cross-sectional schematic diagram showing a state in which the sludge water-absorbing sandbag of Embodiment 1 absorbs and adsorbs sludge water The schematic diagram which shows the state currently used in the house where the sludge water absorption sandbag of Embodiment 1 was flooded by flooding

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiment.
(Embodiment 1)
1 is a partially broken plan view schematically showing a sludge water absorbing sandbag according to Embodiment 1. FIG.
In FIG. 1, 1 is a sludge water absorbing sandbag suitably formed for discharging sludge water staying under the floor of a house, 2 is an attached portion formed by raised vinylon fibers and loop pile-like flocks, 3 is on the surface A bag-like part formed of a sheet of biodegradable polymer such as polybutylene succinate, which is fixed by adhering part 2 by sewing or partial adhesion or welding, and 4 is a water-absorbing resin and a water passage aid. An enclosing portion 5 encapsulated in the bag-like portion 3, a sealing portion 6 sealed by sewing or adhesion to prevent the water-absorbing resin and the water passage aid from leaking out inside the periphery of the bag-like portion 3; 6 Is an edge formed on the outer side of the sealing part 5 of the bag-like part 3, and 7 is a locking hole for locking a locking tool 8 such as a rope or a hook formed on the edge 6.

2 is a schematic cross-sectional view taken along line AA in FIG.
In FIG. 2, the adhering portion 2 is made of a raised vinylon fiber, a polyester fiber, a rayon fiber, a polyolefin fiber, or a polyester fiber with a pitch of several mm, and is formed of a loop pile with a pitch of about 1 to 10 mm. Is made with a length of several mm to 10 mm, welded to a non-woven fabric made of polyolefin, and fixed to the outer peripheral surface of the bag upper portion 3 by adhesion or the like. 99.5 vol% or less water absorbent resin 4a and 0.7 vol% or more water flow assisting material 4b are adjusted and mixed and dispersed uniformly in the inner package portion 4 of the bag-like portion 3 so that the weight when absorbed is about 30 kg. Has been enclosed.

FIG. 3 is a central cross-sectional schematic diagram showing a state in which the sludge water absorbing sandbag of Embodiment 1 absorbs and adsorbs sludge water.
In FIG. 3, 9 is a coarse particle suspension such as coarse sludge particles and suspended matter that are captured by the adhering portion 2 when the water absorbent resin 4a absorbs sludge water, and 10 is a water absorbent resin. And fine suspensions such as silt and fine organic matter in the sludge water absorbed and adsorbed by water flow aids.

About the water absorbent resin sandbag of Embodiment 1 produced as mentioned above, the usage method is demonstrated using drawing below.
FIG. 4 is a schematic diagram showing a state in which the sludge water absorbing sandbag of Embodiment 1 is used in a house flooded by flooding.
In FIG. 4, 11 is a resident of a house damaged by underfloor inundation due to flooding, 12 is an underfloor inspection port, and 13 is staying sludge water staying under the floor. The water-absorbent resin sandbag 1a absorbs and absorbs the accumulated sludge water and gels and swells. The water-absorbent resin sandbag 1a is fastened to the locking hole 7 with a locking tool 8 such as a rope and thrown into the sludge water staying place.
First, the resident 11 confirms the accumulated sludge water 13 from the underfloor inspection port 12, fixes the locking tool 8 made of a rope to the locking hole 7 of the edge 6 of the water absorbent resin sandbag 1, and then the underfloor inspection port 12. The water-absorbent resin sandbag 1 with the locking tool 8 is thrown into the accumulated sludge water 13. The water absorbent resin 4a contained in the bag-like portion 3 of the thrown water absorbent resin sandbag 1 has the water passage aid 4b dispersed therein, and therefore absorbs sludge water with a strong water absorption force. The sludge suspension is also absorbed at the same time due to its strong absorbency when absorbing water, and the coarse-grain suspension 9 is raised on the surface 2 of the bag-like portion 3 or planted in a loop pile shape. The fine suspension 10 entangled in the fiber group and made of silt, fine organic matter or the like passes between the fibers of the bag-like portion 3 and enters the water absorbent resin layer. Since the water absorbent 4b is mixed in the water absorbent resin 4a, the whole water absorbent resin layer is dispersed with the fine suspension 10 made of water, silt, fine organic matter, etc., and the whole is gelled and swollen in a short time. . Then, when dragging to take out the water-absorbent resin sandbag 1a, which has been gelled and swollen as a whole, the fibers of the adhering portion 2 on the lower surface of the water-absorbent resin sandbag 1a come out while entwining the filth on the floor surface. Since it comes, the sludge water and sludge on the floor can be discharged at once.

  The present invention is a sludge water placed on a sludge water or sludge accumulated in a narrow place such as under the floor of a house, a hazardous material storage place, radioactive sludge water, an oxygen-deficient place, a toxic gas generation place such as hydrogen sulfide, etc. It absorbs and retains fine suspensions such as sewage, silt, and organic sludge by simply pulling out after absorbing and adsorbing, and coarse or fine suspension of sewage, silt, etc. It is possible to eliminate sludge water staying in a narrow space such as under the floor or the floor of a hazardous material storage, etc., by simply holding the object entangled with the adhering part and pulling it out, significantly improving the workability of sludge water removal. Can provide sludge water absorption sandbag.

DESCRIPTION OF SYMBOLS 1 Water absorbent resin sandbag 1a Water absorbent resin sandbag which absorbed and adsorbed sludge water and gelatinized and swollen 2 Adhering part 3 Bag-like part 4 Inner part 4a Water absorbent resin 4b Water-flowing auxiliary agent 5 Sealing part 6 Edge part 7 Locking Hole 8 Locking device 9 Coarse grain suspension 10 Fine suspension 11 Resident 12 Underfloor inspection port 13 Stagnant sludge water

Claims (6)

An adhering portion for adhering a suspension such as fine sludge and suspended solids, a water-permeable bag-like portion provided with the adhering portion on an outer peripheral surface, and a water-absorbing resin housed in the bag-like portion. Sludge water absorption sandbag characterized by The sludge water absorbing sandbag according to claim 1, wherein a water passage auxiliary material is dispersed and mixed in the water absorbent resin. The adhering part is an inorganic material such as cotton, cellulose fiber, straw, bamboo fiber, kenaf, vegetable fiber such as palm, chemical fiber such as rayon, rock wool, glass wool, etc., fixed to the surface of the bag-like part. Non-woven fabric of fibers, woven fabrics, coconut shell pulverized powder, rice husk and other porous materials, felt, open-cell sponge, hydrophilic melamine resin, urethane resin, cellulose and other water-absorbing water 2. The sludge water-absorbing sandbag according to claim 1, wherein the sludge water-absorbing sandbag is formed of a material having a fine porous structure that is excellent in performance and has a capillary water-absorbing action. The sludge water-absorbing sandbag according to claim 1, wherein at least one of a deodorant, a disinfectant, a neutralizer, and a radioactive substance adsorbent is mixed in the bag-like portion. The sludge water-absorbing sandbag according to any one of claims 1 to 4, wherein any one or more of the adhering portion, the bag-like portion, and the water-absorbing resin is formed of a biodegradable material. The sludge water-absorbing sandbag according to any one of claims 1 to 3, wherein at least one hole is provided in at least one edge of the peripheral edge of the bag-like portion.