JP3926283B2 - Sacrifice using water purification material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sacrifice using a water purification material that can be used as a water quality purification means such as fresh water and sea water.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, filters are frequently used as purification means for water such as aquariums and fish cages for storing seafood and river water. Such filters include those using synthetic resin fibers and those using natural straw, but in recent years, water purification filters using ceramic porous bodies have also been developed (for example, Patent Document 1). reference.).
[0003]
The water purification filter described in Patent Literature 1 is made of a ceramic porous body in which continuous pores are formed by firing and foaming a raw material mainly composed of silicon oxide, aluminum oxide, and calcium oxide at 700 to 1200 ° C. .
[0004]
[Patent Document 1]
JP 2002-282628 A (pages 4 to 6)
[0005]
[Problems to be solved by the invention]
Since the water purification filter described in Patent Document 1 is formed using a raw material containing Ca, the pH tends to be high, and when using metal refining slag or metal molten slag as a raw material, The possibility of elution of heavy metals contained in slags cannot be completely denied.
[0006]
In addition, since this water purification filter is a ceramic porous body composed of a complex component system, some of the constituent components may be eluted into water, and even if the eluted components are harmless, bacteria that dislike it, The affinity for organisms such as plankton and algae may be reduced.
[0007]
An object of the present invention is to solve is to soluble material not only suspended solids in the water can also be removed, there is no possibility that such heavy metals are eluted, the excellent water purification material in bioaffinity The purpose is to provide the sacrifices used .
[0008]
[Means for Solving the Problems]
The water purification material of the present invention is characterized by being formed by collectively filling granular or lump-shaped foamed glass having continuous voids into a container having water permeability. Foamed glass having a continuous gap not only has high water absorption based on its porous structure, but also has a function of adsorbing suspended substances contained in moisture absorbed in the continuous gap. For this reason, when water touches the water purification material formed by filling granular or massive foamed glass, not only suspended substances in water but also soluble substances can be removed, and an excellent water purification function is exhibited. To do.
[0009]
In particular, since foam glass has only a glass component as a constituent component, there is no possibility that heavy metals and the like are eluted, and the biocompatibility is also excellent. Therefore, in water, protozoa such as bacteria and plankton, algae, etc. are inhabited and propagated in the surface and pores of the foam glass, and microbial film formation is also enhanced. be able to.
[0010]
In addition, although various things can be used as a granular thru | or lump form foam glass, the foam glass manufacturing method which this applicant has proposed in Japanese Patent Application No. 2002-224863 (filed on August 1, 2002). The foamed glass produced by the above is suitable.
[0011]
Here, it is desirable that the outer diameter of the foam glass is 2.0 mm to 50 mm, thereby providing a good balance between the water purification function and clogging resistance, and a relatively wide range of water quality, purification purposes, It can correspond to the target water quality.
[0012]
In addition, when the outer diameter of the foam glass is smaller than 2.0 mm, the water purification function is enhanced. However, when the quality of water to be purified is poor, clogging is likely to occur, and when it is larger than 50 mm, clogging is less likely to occur. Since the purification function tends to decrease, the above range is the optimum range.
[0013]
Further, the bulk specific gravity of the foamed glass is desirably 0.3 to 1.5, which makes it possible to balance water purification function, weight, strength, etc. , Maintenance and backwashing properties are also good.
[0014]
When the bulk specific gravity of the foamed glass is less than 0.3, the specific surface area is increased, the water purification function is increased, and the weight is reduced, but the strength tends to decrease. The range is the optimum range because it tends to decrease and the strength increases, but the weight also increases and the water purification function tends to decrease. In addition, specific surface area means the ratio of the surface area per unit weight of foam glass.
[0015]
Furthermore, the porosity of the foamed glass is desirably 30% to 70%, which makes it highly capable of adsorbing suspended substances, soluble substances, heavy metals, etc., excellent in biocompatibility, and optimal in strength. It will be something. In addition, the porosity means the volume ratio of the space | gap with respect to the apparent volume of foamed glass.
[0016]
In addition, when the porosity of the foamed glass is smaller than 30%, the above-described adsorption function and biocompatibility tend to decrease, and when it is larger than 70%, the adsorption function increases, but the strength tends to decrease. The said range is an optimal range.
[0017]
On the other hand, as the foamed glass, one having water settling can be used. Using such submersible foamed glass, water purification materials can easily sink in the water, so if water purification materials are placed on the bottom of aquariums or ginger, river bottoms, lake bottoms, sea bottoms, etc. Therefore, there is no need to use a weight or the like, and the effect of increasing the stability at the bottom can be obtained.
[0018]
In addition, as the foamed glass having water subsidence, those produced by the foamed glass production method proposed by the present applicant in Japanese Patent Application No. 2002-224863 can be suitably used.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a partially cutaway side view showing a sacrifice using a water purification material according to a first embodiment of the present invention, and FIG. 2 is a partially omitted plan view of the sacrifice shown in FIG.
[0020]
As shown in FIGS. 1 and 2, a water absorption pipe 2 made of vinyl chloride is arranged in a substantially U shape on the upper surface of a bottom plate 1 a of a rectangular box-shaped sacrifice 1, and a proximal end portion 2 b of the water absorption pipe 2 is a sacrifice 1 It is connected with the vicinity of the lower end part 3b of the water guide pipe 3 installed upright in the inside. The lower end 3 b of the water conduit 3 passes through the bottom plate 1 a of the sacrifice 1 and is connected to the filter F through the water pipe 11. The filter F communicates with the water inlet of the pump P through the water supply pipe 12, and the water outlet of the pump P is connected to the water supply device 14 disposed at the upper part of the sacrifice 1 through the water supply pipe 13.
[0021]
In the water absorption pipe 2, a large number of water absorption holes 2 a for sucking the water W in the sacrifice 1 are opened over almost the entire circumference, and a trumpet-shaped water inlet 3 a is provided at the tip of the water conduit 3. In the upper part of the water absorption pipe 2, four water purification materials 10 formed by collectively filling a large number of massive foamed glass 9 in a container 8 made of a water-permeable material and having water permeability as a whole are arranged in a plane. Has been.
[0022]
When the pump P is operated, the water W in the sacrifice 1 is sucked into the water suction pipe 2 from the water suction hole 2a, flows into the filter F through the water feed pipe 11, and is filtered by the filter F. 12, the water is again fed into the sacrifice 1 from the water supply device 14 via the pump P and the water supply pipe 13. Filter F removes suspended substances, soluble organic pollutants (BOD, COD, etc.), ammonia nitrogen, organic nitrogen such as urea and protein, phosphorus, trace harmful substances, etc. Is done. On the other hand, the water W in the vicinity of the water surface W1 is introduced into the water guide pipe 3 from the water inlet 3a of the water guide pipe 3, and is mixed with the water W sucked into the water suction pipe 2 at the base end portion 3b. It is thrown into the sacrifice 1 through the path.
[0023]
By operating the pump P in this way, the water W in the sacrifice 1 is sucked into the water absorption pipe 2 and is repeatedly circulated through the filter F, the pump P, and the water supply device 14 to return to the sacrifice 1 again. . Therefore, the water W in the sacrifice 1 passes through the water purification material 10 disposed in the upper part of the water absorption pipe 2 and is sucked into the water absorption pipe 2.
[0024]
As described above, the massive foamed glass 9 constituting the water purification material 10 has a porous structure, and functions to adsorb and oxidize and decompose suspended substances and soluble substances contained in moisture absorbed in the continuous gaps. Have For this reason, when the water W in the sacrifice 1 passes through the water purification material 10, suspended substances and soluble substances contained in the seawater W are removed by being filtered, adsorbed and decomposed by the foamed glass 9. Therefore, the water quality of the water W in the sacrifice 1 can be purified, and the water W can be kept in a clean state for a longer period than the conventional sacrifice.
[0025]
The water permeable container 8 has a structure in which a lump of foamed glass 9 is enclosed, and when the water purification function of the foamed glass 9 is lowered, the water permeable container 8 is replaced, or an opening is provided in a part of the water permeable container 8. When the water purification function is lowered, a method of replacing only the foam glass 9 can be adopted.
[0026]
As described above, since the water purification material 10 is formed by aggregating a large number of massive foamed glass 9, relatively large suspended materials are captured by the gaps between the adjacent foamed glasses 9. There is also an effect that it is removed. Further, when the purification function of the water purification material 10 is lowered, the foamed glass 9 is taken out from the water permeable container 8, and the clogged foamed glass 9 is washed to remove adsorbed suspended substances and the like. Can be used.
[0027]
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a partially cutaway front view showing a water purification device using a water purification material according to a second embodiment of the present invention.
[0028]
The water purification device 20 is a block having a continuous gap structure in a water-permeable container 23 having a water inlet pipe 21 for introducing water to be treated and a water outlet pipe 22 for discharging water introduced from the water inlet pipe 21. The water purification material 25 is formed by collectively filling the foam glass 24.
[0029]
If the water to be treated is introduced into the container 23 from the inlet pipe 24, while the water to be treated moves through the container 23, the water to be treated passes through the continuous gap between the massive foamed glass 24 constituting the water purification material 25. Since contaminants and soluble substances are removed by filtering, adsorbing and decomposing with the foam glass 24, clean water is discharged from the outlet pipe 22.
[0030]
As described above, the water purification device 20 has a simple structure in which the foam glass 24 is collectively filled in the container 23 provided with the water inlet pipe 21 and the water outlet pipe 22, and the purified water is simply passed through the water to be treated. Obtainable. For this reason, it is possible to easily purify contaminated water containing suspended substances or soluble pollutants without requiring complicated or large-scale equipment or complicated operation management work.
[0031]
The container 23 has a sealed structure in which the foam glass 24 is sealed, and the water purification device 20 is replaced when the water purification function of the foam glass 24 is reduced. In addition, an opening is provided in a part of the container 23. In addition, when the water purification function is lowered, a method of replacing only the foam glass 23 can be adopted. Also, by opening a water inlet (not shown) at the bottom of the water inlet 21 and forcibly supplying air or water into the container 23 from there to remove contaminants in the gap of the foam glass 24 It is also possible to regenerate the water purification capacity.
[0032]
In the container 23 constituting the water purification device 20, the water discharge pipe 22 is arranged at a position above the water intake pipe 21, so that the water to be treated introduced from the water intake pipe 21 becomes an upward flow in the water purification material 25. Because it is purified while moving, it has an excellent function of removing suspended solids.
[0033]
【The invention's effect】
The present invention has the following effects.
[0034]
(1) By forming granular or lump-shaped foamed glass with continuous voids into a water-soluble container collectively, not only suspended substances in water but also soluble substances can be removed. , Heavy metals and the like are not likely to elute and have excellent biocompatibility.
[0035]
(2) By setting the outer diameter of the foam glass to 2.0 mm to 50 mm, the balance between the water purification function and the clogging resistance becomes good, and it corresponds to a relatively wide range of water quality, purification purpose, and target water quality. be able to.
[0036]
(3) By setting the bulk specific gravity of the foamed glass to 0.3 to 1.5, it becomes balanced in terms of water purification function, weight, strength, etc., and versatility is increased, and practicality and maintenance management are also achieved. And backwashing properties are also improved.
[0037]
(4) By setting the porosity of the foamed glass to 30% to 70%, it has a high adsorption function for floating substances, soluble substances, heavy metals, etc., has excellent biocompatibility, and is optimal in terms of strength. .
[0038]
(5) If a foamed glass is used, the water purification material will easily sink in the water, so place the water purification material on the bottom of the aquarium or ginger, river bottom, lake bottom, sea bottom, etc. In this case, it is not necessary to use a weight for setting, and stability at the bottom is also increased.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing a sacrifice using a water purification material according to a first embodiment of the present invention.
FIG. 2 is a partially omitted plan view of the sacrifice shown in FIG. 1;
FIG. 3 is a partially cutaway front view showing a water purification device using a water purification material according to a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sacrifice 1a Bottom plate 2 Water-absorbing pipe 2a Water-absorbing hole 2b Base end part 3 Water-conducting pipe 3a Water-conducting port 3b Lower-end part 8 Permeable container 9, 24 Bulk foam glass 10, 25 Water purification device 21 Inlet pipe 22 Outlet pipe 23 Container 25 Water purification material F Filter P Pump W Water

Claims (1)

A water absorption pipe in which a large number of water absorption holes are opened almost all around,
A plurality of water purification materials formed by collectively filling a container having water permeability with granular or lump foamed glass having continuous voids;
A filter that removes suspended solids, soluble organic pollutants, ammonia nitrogen, organic nitrogen such as urea and protein, phosphorus and trace harmful substances in water,
A pump for sucking the water in the main body into the water absorption pipe through the water suction hole, and returning the water into the main body again through the filter and the water supply device arranged on the upper part of the main body,
The water absorption pipe is disposed on the upper surface of the bottom plate of the sacrifice body,
Pens, wherein the plurality of water purification material is planarly disposed so as to cover the surface of the water pipe.

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