JPH0970600A - Purifying system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive purifying system with the function improved without using a filter or a sterilizer and excellent in safety. SOLUTION: An iron ion is added to the bath water W discharged from a bathtub 10 by an iron ion adder 14. Consequently, the magnetic treatment in the magnetic treating device 16 is promoted, the propagation of anaerobes is suppressed, and the org. matter, etc., in the bathtub 10 are more effectively flocculated. A uniform clearance is formed between the activated stones in a purification tank device 17. Accordingly, water is brought into uniform contact with each activated stone, oxygen and org. matter are equally deposited on each activated stone, the aerobes are acceleratedly propagated, and the propagation of anaerobes is suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purification system for purifying water to be treated by the action of aerobic purification bacteria,
In particular, the present invention relates to a purification system suitable for being applied to a circulation device provided in a treatment tank such as a bath.

[0002]

2. Description of the Related Art Conventionally, a purification system of this type, for example, a circulation purification system for a bathtub is constructed as shown in FIG. The purification system 100 includes a circulation circuit 111 formed by connecting an outlet 112a and an inlet 112b of a bathtub 110 with a pipe. Circulation circuit 111
Is provided with a pump device 114 for circulating the water to be treated (bath water W). In the bathtub 110, there is an outlet 1
Hair capturing member (hair catcher) to cover 12a
113 is provided to prevent hair from entering the circulation circuit 111 and protect the pump device 114 from entanglement of hair or the like.

[0003] A purification tank device 116 is provided downstream of the pump device 114. This purification tank device 11
Activated stone 116a for mounting the aerobic purification bacteria is accommodated in the inside of bath 6, and the bath water W that has flowed in by the aerobic purification bacteria is contained.
It removes dirt (organic matter and microorganisms) from inside and purifies it. A primary filter 115 for removing minute foreign matter in the bath water W is provided between the pump device 114 and the purification tank device 116.

[0004] A sterilizing device 119 using ozone or ultraviolet rays is provided between the purification tank device 116 and the bathtub 110 in the vicinity of the bathtub 110.

The purification system 100 further includes a circulation circuit 1 between the primary filter 115 and the purification tank 116.
A backwash pipe 117 is arranged between 11 and the bottom of the purification tank device 116. The backwash pipe 117 is provided with a valve 117a. Purification tank device 11
6, one end of a backwash pipe 118 provided with a valve 118a is connected. These valves 11
7a and 118a are closed during circulation (during the purification operation).

In this conventional purification system 100, when the pump device 114 is driven, the bath water W in the bathtub 110 circulates in the circulation circuit 111 through the outlet 112a as shown by the solid arrow in the figure. After that, it passes through the inlet 112b and is discharged into the bath 110. During this cycle,
The hair in the bath water W is a hair catcher 1
At 13 is captured. This prevents the hair from being mixed into the circulation circuit 111, and prevents the hair and the like from becoming entangled in the pump device 114. Hair capture member 113
After passing through the pump device 114, the bath water W passes through the pump device 114, and after the fine foreign matter is removed by the primary filter 115, flows into the purification tank device 116, where the dirt is removed and purified by the aerobic purification bacteria. The bath water W that has been purified by passing through the purification tank device 116 is sterilized by ozone or ultraviolet rays in the sterilization device 119 and then discharged into the bathtub 110.

[0007] In the conventional purification system 100 that performs such an operation, it is necessary to periodically clean the purification tank device 116. That is, the backwash pipe 117,
By opening both valves 117a and 118a provided at 118, the bath water W flows through the inside of the purification tank device 116 from the bottom to the top as shown by the dashed arrow in the figure, and together with the organic matter, the backwash pipe It is discharged to the outside of the circulation circuit 111 via 118.

[0008]

However, the above-mentioned conventional purification system 100 has the following various problems. First, since the primary filter 115 was required before the purification tank device 116, a large amount of organic matter generated in the bathtub 110 adhered to the primary filter 115, resulting in an oxygen-deficient state. For this reason, there is a problem that anaerobic bacteria are easily generated and odor is generated in the bathtub 110. In addition, since a large amount of organic matter adheres to the primary filter 115, the amount of organic matter required for the filter medium (active stone 116a) in the purification tank device 116 on the downstream side is insufficient, and as a result, aerobic purification bacteria are reduced. There was a problem that it could not be sufficiently purified. Further, such a primary filter 115 needs to be periodically replaced, and there is a problem that maintenance is troublesome and cost is increased.

Second, in the conventional purification system 100, anaerobic bacteria are likely to be generated in the purification tank device 116, so that periodic cleaning (backwashing) is required. At this time, organic substances and anaerobic bacteria are removed. Backwash pipe 118 with bath water W
Through the purification tank device 116. From this, the filter medium (activated stone 1) in the purification tank device 116 is also considered.
There was a problem that the amount of organic substances required in 16a) was insufficient, and as a result, the number of aerobic purification bacteria was reduced and purification was not possible sufficiently. In addition, since this backwashing operation needs to be performed periodically, water is wasted, which is not preferable in terms of saving water, and there is a problem that the cost increases.

Third, in the conventional purification system 100, sterilization is performed using ozone or the like using the sterilizer 119, but this ozone remains in the bath water W. This residual ozone may flow into the purification tank device 116, and as a result, the aerobic purification bacteria in the purification tank device 116 may decrease or die, which is also a factor that prevents sufficient purification. . In addition, the use of ozone and ultraviolet rays is costly, and there is a problem in human safety,
Not preferred.

The present invention has been made in view of the above problems, and an object thereof is to improve the purification function and reduce the cost without using a conventional filter or sterilizer. An object of the present invention is to provide a purification system that can be done and is excellent in safety and suitable for environmental improvement.

[0012]

According to the purification system of claim 1, a circulation circuit is formed between an outflow port and an inflow port of the tank to be treated, and the water to be treated is circulated in the circulation circuit by a pump device. And purifying the water to be treated,
Iron ion adding means for adding iron ions to the water to be treated in the circulation circuit and magnetically treating the water to which the iron ions have been added by the iron ion adding means suppress the fertility of anaerobic bacteria. It is provided with a magnetic treatment means and a purification tank device for accommodating activated stones for wearing aerobic purification bacteria and for purifying the water to be treated after being magnetically treated by the magnetic treatment means.

In this purification system, iron ions are positively added to the water to be treated in the circulation circuit by the iron ion adding means. The water to be treated, to which the iron ions have been added by the iron ion adding means, is subjected to magnetic treatment by the magnetic treatment means, whereby the fertility of the anaerobic bacteria is suppressed. Thereafter, the treated water is subjected to a sufficient purification treatment by the aerobic purification bacteria in the purification tank device.

The purifying system according to claim 2 is the purifying system according to claim 1.
In the above description, the iron ion adding means is configured to have a function of adjusting the amount of iron ions added to the circulation circuit.

According to a third aspect of the present invention, there is provided the purification system of the first aspect.
Or in the one described in 2, the purification tank device is
A tank main body having an inlet and an outlet for the water to be treated, each of which is connected to the circulation circuit, and inside of which a large number of activated stones for adsorbing aerobic purifying bacteria are contained, and a large number contained in the tank main body. And a clearance forming means for forming a desired clearance between the activated stones.

A purifying system according to a fourth aspect is the purifying system according to the third aspect, wherein the clearance forming means is provided with a large number of openings and an inner wall surface of the tank body is formed in the tank body. And a plurality of partition walls each having a large number of openings formed therein, and a partition member installed in the stone storage basket. The activated stone is stored between the stone storage basket and each partition wall of the partition member.

In these purification systems, desired clearances are formed substantially evenly among the partition walls of the partition member and a large number of activated stones provided in the stone storage basket, respectively.
Due to the presence of this clearance, each activated stone is evenly contacted with water, and oxygen and organic substances are attached to each activated stone in a well-balanced manner. For this reason, the growth conditions of aerobic purifying bacteria that require sufficient oxygen in an oligotrophic state are adjusted, oxygen is not required in a high-concentration nutritional state, or the growth of anaerobic bacteria that dislike oxygen can be suppressed at the same time, By maintaining the growth conditions of aerobic purifying bacteria, the aerobic purifying bacteria that have proliferated further suppress a small amount of anaerobic bacteria, and the purifying function is significantly improved.

[0018]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows the overall structure of a purification system 1 according to an embodiment of the present invention. The purification system 1 of the present embodiment is for purifying bath water W (treatment water) in a treatment tank, for example, the bathtub 10, and piping is provided between the outflow port 12a and the inflow port 12b of the bathtub 10. A circulation circuit 11 connected by The circulation circuit 11 is provided with a pump device 15 for circulating the bath water W.

A hair catching member (hair catcher) 13 is provided in the bathtub 10 so as to cover the outlet 12a.
The pump device 1 prevents hair from entering the circulation circuit 11 and
5 is protected from being entangled with hair or the like.
Note that the hair capturing member 13 may not be located at the outlet 12a as long as it is on the upstream side of the pump device 15.

An iron ion addition device 14 is provided between the bath 10 and the pump device 15. This iron ion adding device 14 is provided with bath water W flowing out of the outlet 12a of the bathtub 10.
This is for adding iron ions therein. By adding the iron ions, the magnetic processing in the magnetic processing device 16 described later is promoted, and the effect of coagulating organic substances and the like in the bathtub 10 can be enhanced. The agglomerated organic matter becomes larger than before being agglomerated, receives a greater resistance to water, is affected by the water flow, and is efficiently discharged from the outlet 12a. As a result, dirt (organic matter, microorganisms, etc.) in the bathtub 10 can be reduced in a short time, and dirt (organic matter, microorganisms, etc.) in the bathtub 10 can be sent out to the purification tank device 17 described later in a short time. become. It should be noted that iron ions are safe for the human body and do not adversely affect the human body unlike ozone conventionally used.

FIG. 2 shows a concrete structure of the iron ion addition device 14. This iron ion addition device 14
For example, a mounting portion 11b formed of a threaded portion formed on a pipe 11a constituting the circulation circuit 11, and the mounting portion 11b
And an iron rod 14a made of, for example, bolts, which is screwed to and detachably attached to the iron. The iron bar 14
As 0, a screw, a nail, or the like may be used. Further, the iron bar 140 may be fixed in the circuit, but it may be unnecessary to add iron ions depending on the water quality or the state of dirt. Further, with the detachable structure as described above, the amount of the iron rod 140 immersed in the bath water W (that is, the amount of added iron ions) can be adjusted according to the water quality and the state of dirt. it can.

The iron ion adding device 14 is not limited to the iron rod, and an iron plate may be used. Further, the liquid containing iron ions is not limited to the solid one,
Any method may be used as long as a predetermined amount of iron ions can be added to the bath water W in the circulation circuit 11. The installation location of the iron ion addition device 14 is desirably in the preceding stage of the magnetic processing device 16 described later, but may be any location as long as iron ions can be added to the circulation circuit 11.

A magnetic treatment device (microorganism regulator) 16 is provided on the downstream side of the pump device 15. This magnetic treatment device 16 suppresses the fertility of anaerobic bacteria by magnetically treating the bath water W to which iron ions have been added by the iron ion addition device 14. This magnetic processing device 16 is specifically disclosed in a magnetizing device for a water quality improvement device (Japanese Patent Publication No. 4-066637) by the same person as the present applicant.

FIG. 3 shows an example of the magnetic processing device 16. The magnetic processing device 16 includes a permanent magnet 1 as a magnetic field forming means disposed on opposing surfaces of holding plates 160A and 160B opposing at predetermined intervals.
61A and 161B. 2 is attached to the holding plate 160B.
Three through holes (not shown),
A is provided with a screw hole (not shown) facing each of the two through holes of the holding plate 160B. Holding plate 160
Screw members 162 and 163 as distance adjusting means for adjusting the distance between A and 160B and maintaining them at a desired distance (distance according to the quality of bath water W) from each other are provided on holding plate 160B. After being inserted through the through-holes, each is screwed into the opposite screw hole of the holding plate 160A. Nuts 162a and 163a are screwed into the screw members 162 and 163, respectively, so as to fix the holding plate 160A at a desired distance from the holding plate 160B. A pipe 11a for guiding the bath water W is provided between the facing surfaces of the permanent magnets 161A and 161B. The pipe 11a is desirably formed of an appropriate elastic material such as silicon rubber, for example.
It is sufficient that the magnetic flux density given to the bath water W can be changed by adjusting the distance between A and 161B, and an inelastic material can be used.

In this magnetic processing device 16, the holding plate 160
The distance between A and the holding plate 160B, that is, the permanent magnet 16
The interval between 1A and 161B is appropriately set according to the quality of the bath water W, and the magnetic flux density of the magnetic field formed therebetween is adjusted. Therefore, the bath water W guided by the pipe 11a
In the present invention, the reproductive power of anaerobic bacteria is sufficiently suppressed in relation to oxygen which is a magnetic substance.

A purification tank device 17 is installed downstream of the magnetic processing device 16. The purifying tank 17 has a structure optimized for the growth of aerobic purified bacteria by suppressing the growth of anaerobic bacteria.

4 to 7 show this purification tank device 17
Represents a specific structure. Here, FIG. 4 and FIG.
Are the states before accommodating the activated stones 175 described below,
FIG. 4 shows the state after assembly, and FIG. 5 is for explaining the operation during assembly. 6 and 7
Shows the state after accommodating the activated stones 175, FIG. 6 is a cross-sectional configuration diagram, and FIG. 7 is a plan view seen from the arrow direction of line AA in FIG.

The purification tank device 17 includes a tank body 1
71, a stone receiving member 172 arranged in the tank body 171, a stone containing basket 173 placed on the stone receiving member 172, and the stone containing basket 173 are partitioned into a plurality of chambers and activated stones It is constituted by a partition member 174 for forming a desired clearance between 175.

The tank body 171 is formed of a metal such as stainless steel or a resin product in a cylindrical shape with a bottom, and has an inlet 171a for allowing the bath water W to flow into a position near its upper portion and a position near the bottom thereof. An outlet 171b for letting out the purified bath water W is provided.

The stone receiving member 172 is arranged in the tank body 171 near the bottom. The stone receiving member 172 divides the inside of the tank body 171 into an active stone accommodating portion 171A in the upper portion and a space portion 171B in the lower portion. The stone receiving member 172 is for holding the stone storage basket 173 and for preventing the activated stone 175 stored in the stone storage basket 173 from falling. The stone receiving member 172 is composed of a plate-like body (plate) formed of, for example, a metal such as stainless steel or a resin product, and a large number of openings 172a through which the purified bath water W can pass. . The stone receiving member 172 may have the same function as that of the stone receiving member 172, and may be formed of, for example, a wire net. The stone receiving member 172 may be fixed to the tank body 171, or may be removable. Stone receiving member 17
A circular support hole 172b, for example, for supporting the partition member 174 is provided at the center of the second member 2.

The stone storage basket 173 is composed of, for example, a plate-shaped body (plate) 173B fixed to the bottom of a cylindrical net body 173A. The plate-like body 173B has a large number of openings 173 similar to the openings 173a of the stone receiving member 172.
b is formed. The outer diameter of the mesh body 173A is formed to be large enough to hold an appropriate gap D (see FIG. 7), which serves as a flow path for a part of the bath water W, with the inner wall surface of the tank body 171. . A large number of activated stones 175 for wearing aerobic purifying bacteria are accommodated in the stone storage basket 173.

The stone container 173 holds a large number of activated stones 175 and also has a large number of openings 173a formed between nets.
Due to this, an appropriate clearance C between the activated stones 175
(See FIG. 8). The stone storage basket 173 may be entirely formed of a net body such as a wire net.

The activated stone 175 may be any as long as aerobic purifying bacteria can be attached thereto. For example, natural barley stone, activated carbon, or ceramics is used. As the activated stone 175, the one to which the aerobic purifying bacteria are not attached at the time of assembly may be stored, but the one to which the aerobic purifying bacteria are attached in advance may be accommodated.

A partition member 174 formed of a metal such as stainless steel or a resin product is housed in the stone container 173. The partition member 174 has, for example, n pieces (n = n in this embodiment) with respect to the central axis 174a.
8) The partition walls 174b are attached and fixed radially at equal intervals. The partition wall 174b divides the inside of the stone storage basket 173 into a plurality of (eight in this embodiment) rooms. Each partition wall 1 of the partition member 174
A large number of openings 174c are formed in each 74b. These openings 174c are the openings 1 of the stone container 173.
As with 73a, a large number of activated stones 175 housed inside
This is for forming an appropriate clearance (gap) C (see FIG. 8) therebetween.

The center axis 174a of the partition member 174 is longer in the lower direction than each partition wall 174b, and when the partition member 174 is placed in the stone storage basket 173, the lower end portion thereof is the bottom of the stone storage basket 173. And is inserted into the support hole 172b of the stone receiving member 172. This holds the partition member 174 in place.

When the purification tank device 17 is assembled, first, as shown in FIG. 5, the stone storage basket 173 is placed at a predetermined position on the stone receiving member 172 in the tank body 171. As a result, an annular gap D (see FIG. 7) is formed between the inner wall surface of the tank body 171 and the outer peripheral surface of the stone storage basket 173. Then, the partition member 174 is mounted by inserting the lower end of the central shaft 174a of the partition member 174 through the bottom of the stone container 173 and inserting it into the support hole 172b of the stone receiving member 172. When the partition member 174 is attached, each partition wall 174b partitions the interior of the stone storage basket 173 into eight rooms. afterwards,
As shown in FIGS. 6 and 7, a large number of activated stones 175 are housed between the partition walls 174b. Finally, the lid body 175 is attached to the upper opening portion of the tank body 171, and is fixed by a fixing means such as a screw.

In this purification tank device 17, when a large number of activated stones 175 are stored in the stone storage basket 173 divided into eight chambers by the partition member 174 as described above,
An appropriate clearance C is formed between these activated stones 175.

FIG. 8 is a partially enlarged view for explaining the formation state of the clearance C. That is, the opening 174c provided in the partition wall 174b of the partition member 174.
The activated stones 175 are partially hooked on each other, and as a result, appropriate clearances C are equally formed between the activated stones 175. The clearance C is formed not only in the flow direction of the bath water W (up and down direction in this embodiment) but also in the direction orthogonal to the flow direction. By the way, if the opening 174c does not exist, the bottom side is denser than the top side due to the water pressure of the circulating bath water W and the weight of the activated stones 175 in the tank body 171, and the clearance is uniformly formed in the vertical direction. It will not be done.

Further, in this purification tank device 17, since the stone storage basket 173 is also provided with a large number of openings 173a, these openings 173a also function similarly to the openings 174c provided in the partition wall 174b. To do. That is, the large number of openings 173a and openings 174c are combined to form a sufficient clearance C evenly between the activated stones 175.

Returning to FIG. 1, for further explanation, a boiler device 18 as a heating means for heating the supplied fresh water to generate hot water is installed on the downstream side of the purification tank device 17.

Next, the operation of the entire purification system 1 according to this embodiment will be described.

In this purification system 1, the bath water W is heated to a desired temperature by the boiler device 18 and is circulated in the circulation circuit 11 by the pump device 15 as shown by the arrow in FIG. In this circulation process, the bath water W is sent out from the bathtub 10 through the outlet 12a. At this time, the hair collected in the bathtub 10 is captured by the hair capturing member (hair catcher) 13, and the hair is collected into the circulation circuit 11. Hair contamination is prevented.

Iron ions are added to the bath water W sent out from the outlet 12a by the iron ion addition device 14. By the addition of the iron ions, the magnetic treatment in the magnetic treatment device 16 is promoted, the growth of anaerobic bacteria is suppressed, and the effect of coagulating organic substances and the like in the bathtub 10 is enhanced. The agglomerated organic matter becomes larger than before being agglomerated, receives a greater resistance to water, is affected by the water flow, and is efficiently discharged from the outlet 12a. As a result, dirt (organic matters, microorganisms, etc.) in the bathtub 10 is reduced in a short time, and the bathtub 10
It becomes possible to send out dirt (organic matter, microorganisms, etc.) in a short time.

Next, in the purification tank device 17, the inflow port 1
As shown by the arrow in FIG. 6, the bath water W flowing in from 71a passes between the activated stones 175 in the stone storage basket 173 from above, passes through the opening 172a of the stone receiving member 172 at the bottom,
In addition, some of the openings 17 are provided on the side surface of the stone storage basket 173.
3a, and further, through the gap D between the tank body 171 and the stone storage basket 173, it is sent out from the outflow port 171b.

Here, in the purification tank device 17, as described above, the plurality of openings 174c provided in the partition walls 174b of the partition member 174 and the openings 173a provided in the stone storage basket 173 are activated as described above. Stone 175
Equal clearances C (FIG. 8) are formed between them. Therefore, water is evenly contacted with each activated stone 175, and oxygen and organic matter are attached to each activated stone 175 in a well-balanced manner. Therefore, the growth conditions of aerobic purifying bacteria that require sufficient oxygen under oligotrophic conditions are set, and anaerobic bacteria that do not require oxygen or that dislike oxygen in high-concentration nutrients are unlikely to grow.
At the same time, by maintaining the growth conditions of the aerobic purification bacteria, slight anaerobic bacteria are further suppressed by the grown aerobic purification bacteria.

Further, in the purification tank device 17, when an activated stone preliminarily loaded with aerobic purification bacteria is inserted as the activated stone 175 for the purpose of promoting the initial purification, the effect of promoting the initial purification is maintained for a long time. It becomes possible to do. Therefore, if the temperature condition does not match the temperature condition of the aerobic purifying bacteria attached to the activated stone 175, such as the usage conditions of the purification tank device 17 (for example, the user prefers to take a bath at a temperature considerably higher than usual). And the like), even when the purifying bacteria are replaced, aerobic purifying bacteria that meet the conditions grow. That is, aerobic purification bacteria are selectively grown.

Of course, even when the activated stone without the aerobic purifying bacteria is put in, the start-up of the system is delayed as compared with the case where the activated stone preloaded with the aerobic purifying bacteria is put in. Purification by appropriate aerobic purifying bacteria is performed as described above. Then, the purified bath water W is discharged into the bathtub 10 from the inflow port 12b through the circulation circuit 11.

As described above, according to the purification system 1 of the present embodiment, the iron ion addition device 14, the magnetic treatment device 16 and the purification tank device 17 are provided, so that the functions of these devices are combined to prevent anaerobic bacteria. While suppressing the growth, an aerobic purifying bacterium suitable for the use condition can be grown, and the purifying function is remarkably improved. Therefore, the primary filter required in the conventional purification system 100,
A backwashing device and a sterilizing device using ozone or the like are no longer required, and all the problems caused by using them can be eliminated. That is, the purification function is remarkably improved, and maintenance such as periodic replacement of the primary filter is unnecessary, and odor generation in the bathtub due to generation of anaerobic bacteria is eliminated. Further, water consumption due to back washing is eliminated, and an energy saving effect and a water saving effect can be obtained. In addition, since a sterilizer using ozone or the like is not required, safety is improved and cost is significantly reduced.

Although the purification system of the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments, and various modifications can be made.

For example, in the above embodiment, the system for circulating the hot water heated by the boiler device 18 has been described, but the system for circulating the cold water without using the boiler device 18 is also applicable. Moreover, although the to-be-processed tank was demonstrated as the bathtub 10, it is good also as a purifying system of the to-be-processed tank which needs not only the bathtub 10 but purification | cleaning by aerobic purification bacteria.

Further, the purification tank device 17 and the stone receiving member 1
The shapes of the 72, the stone storage basket 173, the partition member 174, and the like are not limited to those in the above-described embodiment, and are arbitrary. For example, although the partition member 174 as the clearance forming means is formed in the shape of an impeller in the above embodiment, for example, a plurality of partition walls 27 as shown in FIG.
The same effect can be obtained by using the partition member 274 having a shape in which 4b are arranged in parallel. Further, even if the stone receiving member 172 is not plate-shaped as in the above embodiment, an opening (support hole) for receiving the central shaft 174a of the partition member 174.
It may be a bearing having.

Further, the clearance forming means may have the following modes. For example, instead of using the partition member 174, corners, circles, or polyhedron-shaped rods may be installed. With such a configuration, it can be realized at a lower cost than in the case of the above embodiment. it can. Further, these rods and the like may be configured to have an uneven portion or a threaded portion. The material of these rods or the like is preferably plastic, iron, stainless steel or the like that is hard to be deformed, but bamboo or the like that can be deformed with time is also applicable. The rods may be installed independently,
It is also possible to connect a plurality of rods in a ring shape to form an integral structure. The rods and the like include not only linear ones but also spiral ones and the like.

Further, holes may be formed in each of the activated stones, and rods or wires may be made to penetrate therethrough. Further, artificial rods may be artificially formed in various rods to have the same structure. Good. Further, the rods or wires penetrating the plurality of activated stones may be arranged two-dimensionally (for example, in a grid) or three-dimensionally (for example, a cube, a pyramid, a cone).

Further, instead of forming a hole in the activated stone and penetrating the rod or the like, the same effect can be obtained by bonding the activated stone to the outer peripheral portion of the rod or the like. In this case also, a similar structure may be used in which an activated stone is artificially formed on the outer peripheral portion of a rod or the like. Further, the sticks or the like to which the plurality of activated stones are adhered may be arranged two-dimensionally (for example, in a lattice) or three-dimensionally (for example, a cube, a pyramid, a cone).

In addition to the method of forming a clearance between the activated stones by interposing such a rod or the like, the activated stones are directly adhered to each other to form the clearance without using the rod or the like. Good. Also in this case, the active stones may be artificially formed to have the same shape as that in which the activated stones are adhered to each other. As described above, any method can be included as long as a desired clearance can be formed between a large number of activated stones.

In the above embodiment, the purification tank device 17 has the structure in which the water to be treated flows in from the upper part and flows out from the lower part, but it may be structured to flow in from the lower part and flow out from the upper part. Good. Further, in the above-described embodiment, the purification tank device 17 has a structure that suppresses the growth of anaerobic bacteria and is optimized for the growth of aerobic bacteria. However, even if a purification tank device having a conventional structure is used, The entire system can exhibit a sufficient purification function as compared with the conventional system.

[0058]

As described above, according to the purification system of any one of claims 1 to 4, iron ion addition means for adding iron ions to the water to be treated in the circulation circuit,
A magnetic treatment means for suppressing the fertility of anaerobic bacteria by magnetically treating the water to be treated to which iron ions have been added by the iron ion addition means, and an activated stone for aerobic purification bacteria attachment are housed, Since it has a purification tank device for purifying the water to be treated after being magnetically treated by the treatment means, without using a primary filter or a sterilization device,
The purification function can be further improved, the cost can be reduced, and the safety can be improved. Therefore, a purification system suitable for environmental improvement can be provided.

Particularly, according to the purification system of the third or fourth aspect, a desired clearance is formed between a large number of activated stones accommodated in the purification tank device.
Water is evenly contacted with each activated stone, and oxygen and organic substances are attached to each activated stone in a well-balanced manner. For this reason, the aerobic purifying bacteria are proliferated, while the growth of the anaerobic bacteria can be suppressed, so that the purifying function is significantly improved.

[Brief description of drawings]

FIG. 1 is a circuit configuration diagram of a purification system according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view illustrating a configuration of an iron ion adding device used in the system of FIG.

FIG. 3 is a partial cross-sectional view illustrating a configuration of a magnetic processing apparatus used in the system of FIG.

FIG. 4 is a partially cutaway perspective view showing the configuration of a purification tank device used in the system of FIG.

5 is an exploded perspective view of the purification tank device of FIG.

FIG. 6 is a vertical cross-sectional view of the purification tank device of FIG.

7 is a cross-sectional view as seen from the direction of arrows AA in FIG.

FIG. 8 is a partial enlarged view for explaining the operation of the purification tank device of FIG.

FIG. 9 is a cross-sectional view of a purification tank device according to another embodiment of the present invention.

FIG. 10 is a circuit configuration diagram of a conventional purification system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Purification system 10 Bathtub (processing tank) 11 Circulation circuit 12a Outlet 12b Inlet 13 Hair capture member 14 Iron ion addition device 15 Pump device 16 Magnetic treatment device 17 Purification tank device 171 Tank body 172 Stone receiving member 173 Stone storage basket 174 Partition member

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display area A47K 3/00 A47K 3/00 K B01D 35/027 C02F 1/48 A C02F 1/48 3/06 ZAB 3/06 ZAB B01D 35/02 J

Claims (4)

[Claims] 1. A purification system in which a circulation circuit is formed between an outflow port and an inflow port of a treated tank, the treated water is circulated in the circulating circuit by a pump device, and the treated water is purified. Then, ferrous ion adding means for adding iron ions to the water to be treated in the circulation circuit, and magnetically treating the water to which the iron ions have been added by the iron ion adding means to increase the fertility of anaerobic bacteria. It is characterized by comprising a magnetic treatment means for suppressing, and a purification tank device for accommodating an activated stone for loading aerobic purification bacteria and for purifying the water to be treated after being magnetically treated by the magnetic treatment means. Purification system. 2. The purification system according to claim 1, wherein the iron ion addition means has a function of adjusting the amount of iron ions added to the circulation circuit. 3. The tank body, wherein the purification tank device has an inflow port and an outflow port for the water to be treated, each of which is connected to the circulation circuit, and in which a large number of activated stones for mounting aerobic purification bacteria are housed. And a clearance forming means for forming a desired clearance between a large number of activated stones accommodated in the tank body.
Or the purification system described in 2. 4. The stone accommodating basket, wherein the clearance forming means has a large number of openings and is placed in the tank body with a predetermined gap between the tank body and an inner wall surface of the tank body. It has a plurality of partition walls formed with a large number of openings and is configured by a partition member installed in the stone storage basket, and a large number of active stones between the stone storage basket and each partition wall of the partition member. The purification system according to claim 3, wherein the purification system is configured to be housed between them.