JP2003275785A - Water treatment device and method for treating water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the activity of microorganisms so as to increase the efficiency of treatment in the microbial treatment of waste water using an aeration tank into which air is supplied. <P>SOLUTION: In a water treatment device, air supplied by an air blower 2 is sent to an aeration tank 4 to microbially treat the water in the aeration tank 4. An ion generator 3 having an ion generating chamber 10 filled with a minus ion generator 24 and where air passes is disposed between the air blower 2 and the aeration tank 4. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment apparatus and a water treatment method for feeding microbes to water in an aeration tank by feeding air.

[0002]

2. Description of the Related Art Conventionally, as a method for treating wastewater containing organic substances, there have been used chemical methods such as combustion, chemical washing, filtration,
There are physical methods such as adsorption and biological methods such as microbial degradation and immobilization.

A specific example of microbial decomposition, which is one of the biological methods, is an activated sludge method. In the activated sludge method, air is blown into wastewater containing aerobic microorganisms and organic matter to be decomposed to form activated sludge, thereby promoting decomposition of organic matter by microorganisms. In this treatment, if the activated sludge becomes active, water treatment can be performed efficiently. That is, in order to improve the efficiency of microbial treatment, it is realized by increasing the activity of microorganisms existing in the microbial decomposition tank. As a result, decomposition of odorous components such as hydrogen sulfide generated during decomposition of organic matter is promoted,
It is possible to reduce an offensive odor emitted from the water treatment device.

[0004] Conventionally, as an effective method for increasing the activity of microorganisms, there has been known a method of sufficiently supplying oxygen and nutrients to the microorganisms to appropriately maintain the survival environment of the microorganisms. However, other effective methods other than these have not been widely known. Therefore, in the water treatment device, the progress of decomposition by microorganisms does not proceed so much, and problems such as an offensive odor generated from the water treatment device have not been solved.

[0005]

Therefore, the technical problem to be solved by the present invention is to improve the efficiency of treatment in the microbial treatment of wastewater using an aeration tank for feeding air into the tank by increasing the activity of the microorganism. It is an object of the present invention to provide a water treatment device and a water treatment method capable of increasing the water consumption.

[0006]

Means for Solving the Problems and Actions / Effects The present invention provides a water treatment device having the following constitution in order to solve the above technical problems.

The water treatment apparatus of the present invention sends the air sent from the air blower to the aeration tank and treats the water in the aeration tank with microorganisms. An ion generator having an ion generation chamber filled with a negative ion generator and through which the air passes is provided between the air blower and the aeration tank.

In the above structure, the water treatment in the water treatment apparatus does not have to be carried out only in the aeration tank, and may have other tanks which are generally used widely. For example, a combination of an aeration tank and these other tanks can be used for water treatment, such as a sedimentation tank for precipitating large solids in wastewater or a sludge enrichment tank for concentrating and storing sludge grown in an aeration tank. It may be performed.

The air blown from the air blower of the water treatment device passes through the ion generator. The ion generator is
It has an ion generation chamber filled with negative ion generators, and releases negative ions into the air sent from the air blower. Examples of the negative ions include negatively charged oxygen atoms bound to fine water particles (water vapor) in the air.

The negative ion generator is a substance that generates negative ions by some action such as electric discharge or radical phenomenon, and specific examples thereof include tourmaline, Ioishi, phyllite, barite stone, and radio echo. To be As another example, a component of the ancient seabed mineral layer can be used as a negative ion generator. That is, fish, microorganisms and algae in the sea tens of millions of years ago are mainly composed of rare earths buried and deposited due to crustal deformation, and those obtained by coating and firing carrier particle surfaces can be suitably used. .

According to the above construction, the offensive odor from the aeration tank of the water treatment device is reduced. This effect is presumed as follows. That is, the air sent from the air blower to the ion generator stores abundant negative ions generated from the negative ion generator. Negative ions combine with contaminated positive ions in the air to neutralize and purify the air.
That is, dust and contaminants in the air, such as positive ions, combine with negative ions and fall into the ion generator to be removed from the air. Therefore, the air emitted from the ion generator becomes air having a self-cleaning ability that does not contain positive ions such as dust. Therefore, by aerating with air containing a large amount of negative ions, the microorganisms in the aeration tank are not affected by various bacteria in the air, the activity of the microorganisms is increased, and the decomposition efficiency is improved.

Therefore, according to the water treatment apparatus of the present invention, in the microbial treatment of waste water using an aeration tank for sending air into the tank, the efficiency of the treatment can be improved by enhancing the activity of the microorganisms. Therefore, water treatment is efficiently performed. Therefore, the offensive odor generated from the aeration tank can be reduced.

The water treatment apparatus of the present invention can be constructed in various modes as follows.

Preferably, the ion generating device further includes an active chamber filled with an air activator on the downstream side of the ion generating chamber.

In the above structure, the air activator activates water particles contained in the air. As the air activator, the water activating member described in JP-A-2000-254663 can be preferably used. That is, at least Na, Mg, Al, Si, S, K, C
100 parts by weight of fine mineral powder containing a, Ti and Fe as main components in an amount of 95% by weight or more in terms of oxide, 1 to 4 parts by weight of titanium phosphide (TiP), 3 to 5 parts by weight of manganese oxide and 1 to 2 parts by weight of magnetite. It is constituted by coating the surface of a carrier particle with a drug having a part.

When the air passes through the active chamber filled with the air activator, the water particles contained in the air are activated. That is, the air has enhanced purification effects such as antibacterial and deodorizing. It is considered that such an effect is due to an increase in the surface activity of water, an increase in hydroxide ions, and downsizing of water clusters.

According to the water treatment apparatus having the above-mentioned structure, the air blown from the air blower passes through the ion generating chamber to remove various bacteria, and then the action of the air activator causes antibacterial action, deodorization, etc. It becomes the air with enhanced purification effect. Therefore, by blowing this air into the aeration tank and treating the microorganisms, the activity of the microorganisms can be further enhanced. Therefore, in the microbial treatment of wastewater using an aeration tank that sends air into the tank, it is possible to increase the activity of the microorganisms and reduce the offensive odor generated from the water treatment device.

Preferably, the ion generating chamber has a cylindrical portion whose axis is provided in a substantially vertical direction, an introducing portion for introducing the air into the cylindrical portion, and an exhaust portion for exhausting the air from the cylindrical portion. And the cylindrical portion is vertically divided into a lower section and an upper section by a gap partition plate, the lower section communicates with the introduction section, and its axis is the axis of the cylindrical section. It has a gap cylindrical wall vertically provided on the gap partition plate so as to be parallel to each other, and the upper section is filled with the negative ion generator and communicates with the discharge part.

In the above structure, the ion generating chamber has a tower-shaped structure having a negative ion generator filled therein, an introducing part for introducing air, and an exhausting part for discharging air. Is provided. The cylindrical portion is divided into two by a partition plate.

The upper section of the cylindrical portion is filled with a negative ion generator. On the other hand, the lower section of the cylindrical portion is provided with a porous cylindrical wall that is hung vertically on the spatial partition plate. The gap cylindrical wall is a cylindrical wall, and is preferably provided coaxially with the cylindrical portion so that its axis is substantially parallel to the axis of the cylindrical portion. The gap partition plate and the gap cylindrical wall are provided with a gap that allows air to pass therethrough and does not allow the negative ion generator to pass therethrough. For example, a plate member with a hole or a wire mesh in a mesh shape can be used. It is preferably used.

According to the above construction, the air sent into the lower section from the introduction section flows along the inner wall surfaces of the cylindrical section and the gapped cylindrical wall to form a spiral flow. That is, the air sent into the cylindrical portion forms a spiral flow along the inner peripheral surface of the cylindrical portion, and at the same time, enters the inside of the porous cylindrical wall through the gap of the porous cylindrical wall and forms a spiral flow along the inner periphery thereof. Become.
That is, a vortex-like air flow is generated in each of the cylindrical portion and the gapped cylindrical wall to form a double vortex body. Then, these spiral air streams are
Gradually moving upward, it passes through the gap of the partition plate and is sent to the upper compartment.

As described above, the upper compartment is filled with the negative ion generator, and the spiral airflow rises through the gap between the negative ion generators. At this time, the negative ion generator vibrates due to the air flow and releases a large amount of negative ions. Since the air flow has a double spiral shape, when the air flow that can give a large vibration to the negative ion generator due to the interference of the vortices reaches the discharge part provided on the cylindrical part, the air is It is discharged from the discharge part.

According to the above construction, it is possible to generate a double spiral air flow, give a larger vibration to the negative ion generator to promote the release of negative ions, and the residence time of the air flow in the cylindrical portion. Can be lengthened. Therefore, the air containing many negative ions is sent to the aeration tank, whereby the activity of the microorganisms in the aeration tank can be further enhanced.

In the above structure, preferably, the gap partition plate is formed integrally with the gap cylinder wall, and the flange portion provided around the gap cylinder wall and the gap cylinder wall are formed. And a bottom portion provided on the bottom.

In the above construction, the gap partition plate for partitioning the cylindrical portion has the flange portion on the upper side, and the bottom wall portion of the gap cylindrical wall on the lower side, and the central portion is concave. Since the concave portion of the gap partition plate communicates with the upper section of the cylindrical body, this portion can also be filled with the negative ion emitter. Therefore, more negative ions can be generated.

The present invention also provides the following water treatment method. The water treatment method is a water treatment method in which air is blown into the aeration tank and the water in the aeration tank is treated with microorganisms, and the air is aerated by passing through an ion generation chamber filled with a negative ion generator. It is blown into the tank.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION A water treatment apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a water treatment device according to an embodiment of the present invention. The water treatment device 1 includes an air blower 2,
An ion generator 3 and an aeration tank 4 are connected by pipes 6a and 6b. That is, the air blower 2 sucks air from the air intake port 5 and blows the air to the ion generator 3 through the pipe 6a. The ion generator 3 emits negative ions into the air when the air sent from the air blower 2 passes through the inside thereof. The air discharged from the ion generator 3 is sent to the aeration tank 4 through the pipe 6b. The aeration tank 4 is a microbial decomposition tank using the activated sludge method, and when the air that has passed through the ion generator 3 is blown in, the aeration tank 4 promotes the decomposition reaction of aerobic microorganisms and the organic components present in the wastewater in the tank. Disassemble.

FIG. 2 is a diagram showing the external configuration of the ion generator of the water treatment device of FIG. The ion generator 3 is a columnar ion generation chamber 10 fixed to a base 18 respectively.
And an active chamber 11. The ion generation chamber 10 takes in the air sent from the air blower 2 from the introduction part 12 provided at the lower side of the tower, raises the air in the tower, and discharges it from the discharge part 14. Further, the active chamber 11 takes in air from the introduction part 15 connected to the discharge part 14 of the ion generation chamber, lowers the inside of the tower, and discharges it from the discharge part 13. The air discharged from the discharge part 13 is blown into the aeration tank 4 and used for aeration.

The ion generating chamber 10 and the active chamber 11 of the ion generator are filled with a negative ion generator and an air activator, respectively. These are insertion ports 16 provided at the upper ends of the ion generating chamber 10 and the active chamber 11, respectively.
Filled from. The insertion opening 16 is provided with a lid 17 for closing the insertion opening 16.

The air activator packed in the active chamber 11 is densely packed in the tower of the active chamber 11. As the air activator, at least Na, Mg, Al, Si, S, K, C
100 parts by weight of fine mineral powder containing a, Ti and Fe as main components in an amount of 95% by weight or more in terms of oxide, 1 to 4 parts by weight of titanium phosphide (TiP), 3 to 5 parts by weight of manganese oxide and 1 to 2 parts by weight of magnetite. What is manufactured by coating the surface of a carrier particle with a drug comprising a part and baking it is used. In addition to the above components, zirconia may be added in an amount of 0.1 to 1.0 parts by weight and / or natural bittern may be added in an amount of 0.2 to 1 parts by weight in order to adjust the performance of the laxative.

Specifically, the fine mineral powder is Na, Mg, A.
1, Si, S, K, Ca, Ti and Fe in terms of oxide, Na ₂ O: 0.5 to 3.0% by weight, MgO: 0.5 to 3.
0% by weight, Al ₂ O ₃ : 10 to 25% by weight, SiO ₂ : 5
0-75 wt%, SO _3: 0.5~3.0 wt%, K ₂ O:
2-5 wt%, CaO: 1.5 to 4.5 wt%, TiO _2:
0.3 to 1.5 wt% and Fe ₂ O _3: containing 7 to 15% by weight.

The above-mentioned syrup is prepared by adding the above syrup component to water, and the ratio of water to the above-mentioned syrup component is 15:85 to 35:65 (weight ratio), preferably 20:80 to 30:70 (weight ratio). To prepare.

More specifically, the average particle size is 300 to 400 n.
It is obtained by mixing the finely divided mineral powder having the above composition, titanium phosphide and manganese oxide pulverized to m with water until they are sufficiently homogeneous.

The laxative thus obtained has a laxative concentration of, for example, 3 to 10% by weight, preferably 4.8 to 6.
It is diluted to 5% by weight and applied to the surface of the carrier by dipping, spraying or the like, preferably by dipping means, and the applied laxative is baked. The thickness of the medicine is 0.15 to 0.4μ after firing.
m, preferably 0.2 to 0.3 μm. The baking may be carried out on a flat surface of the carrier coated with the laxative, in which case the carrier surface portion in contact with the surface may have a portion where the laxative layer is not formed. Good.

The carrier may be composed of any material as long as it has heat resistance to a temperature of 1000 ° C. to 1500 ° C., for example, an inorganic material such as rock, mineral, silica, alumina, etc., preferably porcelain earth. It is possible to use fine particles of rocks, minerals, etc., which are formed into a spherical shape or a shape close to a sphere such as a spheroid, and fired. The fine particles are more preferably fine particles of rock and / or minerals. As such, it is possible to use clay, which is usually a fine mineral of less than about 2 μm.

The carrier is a fine mineral such as clay as described above and has an average particle size of 1 to 40 mm, preferably 10 to 25 m.
m-shaped or close to it, 700-75
It is manufactured by calcination at a temperature of about 0 ° C. for 10 to 15 hours.

The firing conditions for forming the drug substance layer are as follows: when the obtained water-active members of the present invention are lightly collided with each other,
It may be fired so as to have an appropriate strength such that the surface is not scratched. Desirably, after applying the drug onto the carrier, 20
0 to 400 ° C, preferably 250 to 350 ° C, 4 to
After drying for 8 hours, preferably 5 to 7 hours, 4 hours per hour
The temperature is raised at a rate of 0 to 60 ° C., preferably 45 to 55 ° C., and 1100 to 1500 ° C., preferably 13
The required hardness and strength can be obtained by firing at a temperature of about 00 to 1400 ° C. for 2 to 6 hours, preferably 3 to 5 hours.

The size of the finally obtained air activator can be appropriately selected in consideration of the volume, shape, processing capacity and the like of the active chamber to be accommodated. The size can be adjusted at the time of manufacturing the carrier, and has a diameter of about 1 to 40 mm when molded into a spherical shape, and in the present embodiment, 10 to 25 mm.
Something is enough. The air activator to be filled may have several different sizes.

FIG. 3 is a sectional view of the ion generating chamber of FIG. As shown in FIG. 3 (a), the ion generating chamber 10 has an upper partition 30 and a lower partition 31 inside the tower due to the partition plate 20.
It is divided into. The gap partition plate 20 includes a flange portion 21, a cylindrical wall 22, and a bottom wall 23, and the bottom wall 23 portion is a recess 32.
That is, the peripheral space 33 sandwiched between the outer wall of the ion generating chamber 10 and the cylindrical wall 22 of the partition plate is formed.

As shown in FIG. 2 (c), the bottom wall 23 of the gap partition plate is constructed by arranging wedge wires side by side at predetermined intervals. Bottom wall 23 of the partition plate
Arrange the wedge wires in parallel, and
The cylindrical wall 22 is formed by radially arranging integrally formed bent wires. The gap N of the gap partition plate 20 is dimensioned so that negative ion generators cannot pass therethrough as described later.

The negative ion generators 24a, 24b, 24c and 24d, which are shown in FIG. 4 in a sectional view of the ion generation chamber filled with the negative ion generator, are densely packed in the upper compartment 30 of the ion generation chamber. The negative ion generator has a diameter of 21 mm 24a, 18 mm of 24b, 1
Four types having different sizes, 24c of 5 mm and 24d of 11 mm, have arbitrary ratios. The mixing ratio can be arbitrarily changed depending on the size of the ion generator. It is preferable that the larger the device, the larger the diameter.

As shown in FIG. 3 (b), the discharge section 14 in the tower is provided with a discharge chamber 14 so that the negative ion generator filled in the upper compartment 30 does not flow out of the ion generation chamber 10. Is provided with a slit-shaped wall 19. This gap M is dimensioned so that the negative ion generator cannot pass through it.

The negative ion generator 24 is a substance that generates negative ions by some action such as electric discharge or radical phenomenon. Specific examples thereof include tourmaline, Ioishi, phyllite, barite stone, and radio echo. Moreover, the component of the ancient seabed mineral layer can be used as a negative ion generator. That is, fish, microorganisms, and algae in the sea tens of millions of years ago are mainly composed of rare earths buried and deposited due to crustal movement, and those obtained by coating and firing carrier particle surfaces can also be suitably used. .

FIG. 5 is a schematic diagram showing the flow of air in the ion generating chamber. The air sent from the introduction part 12 to the lower compartment 31 as shown by the arrow 55 collides with the inner wall of the ion generation chamber 10 as shown by the arrow 51, and becomes a spiral flow along the inner wall. Then, while the spiral airflow flows in the peripheral space 33, the air flows into the recess 32 through the gap of the partition plate 20. The air flow that has flowed into the recess 32 is a part of the spiral flow that flows along the inner wall of the ion generation chamber, and therefore becomes a spiral flow along the inner wall of the cylindrical portion within the recess 32. That is, the air flow 51 sent from the introduction portion forms a double spiral flow of a spiral flow flowing in the peripheral space 33 and a spiral flow flowing along the inner peripheral wall of the recess.

The spiral flow formed in the lower compartment 31 passes through the partition plate 20 and rises to the upper compartment 30. Further, at the contact points of the inner and outer spiral flows, the flow is disturbed, and a downward flow 54 is also generated. The upper compartment 30 is filled with the negative ion generators 24 as described above, and the flow of these flows causes the negative ion generators 24 to vibrate, causing the negative ion generators 24 to collide with each other. A large amount of negative ions are generated.

Since the air flow in the ion generation chamber 30 flows in a vortex shape, a large amount of negative ions released from the negative ion generator can be taken in and stay in the chamber for a long time. Negative ions combine with contaminants in the air and remove them from the air. Therefore, the air 56 sent into the active chamber 11 from the emission part 14 of the ion generating chamber 30 becomes air with less germs.

In the active chamber 11, the water in the air is activated by the air activator. That is, the air has enhanced purification effects such as antibacterial and deodorizing.

(Example) A wastewater treatment was carried out by incorporating the ion generator shown in FIG. 2 into the water treatment equipment (living wastewater treatment for 310 people) of the town A collection / delivery treatment plant. FIG. 6 is a configuration diagram of the water treatment system of the present embodiment.

In this apparatus, the waste water is sent to the settling tank 40 through the pipe 44, and large particles are removed by the settling. Then, the sewage in the settling tank 40 is sent to the aeration tank 4 through the pipe 45 to be decomposed by microorganisms. The air that has passed through the ion generator 3 is blown into the aeration tank 4 to perform an aeration process.

The sewage that has been microbially decomposed in the aeration tank 4 for a predetermined time is sent to the settling tank 41 through the pipe 46. Settling tank 41
Then, the activated sludge agitated in the aeration tank 4 and floating in the wastewater is removed by being precipitated. The activated sludge collected by the settling in the settling tank 41 is sent to the sludge storage tank 42 to decompose the organic matter remaining without being decomposed, and the pipe 4
A part of the sludge is returned to the settling tank 40 through 8 and the treated water is drained through the pipe 49.

The air blower 2 takes in air from the air intake port 5 and sends the air to the ion generator 3 through the pipe 6a. As described above, the ion generator 3 has the ion generating chamber and the active chamber, and the air passes through these and is blown into the aeration tank 4 through the pipe 6b. The pipe 6b is
The air that has been divided into the pipe 47 on the way and passed through the ion generator 3 is also blown into the sludge storage tank 42 through the pipe 47. In the aeration tank 4 and the sludge storage tank 42, the sewage is stirred by the air that has passed through the ion generator 3.

The ion generating chamber of the ion generating device is mainly filled with a rare earth element, and the surface of the carrier particles is densely filled with a negative ion generating material obtained by coating and firing. As a simple substance, a commercially available clay for porcelain (manufactured by Marumo Soil Co., Ltd., trade name "porcelain clay") was filled in a ball-shaped mold, and this was subjected to a 3 ton press to produce balls having different diameters.
Each ball was unglazed at 700 ° C to 750 ° C for 12 hours to prepare a ball-shaped carrier. A negative ion generator was prepared by sintering a glaze containing rare earth as a main component to this simple substance. This negative ion generator was determined to generate about 2000 negative ions / cc when measured with a negative ion measuring instrument (EB-12A manufactured by Eco Holistic Co., Ltd.).

The active chamber of the ion generator is closely packed with the air activator manufactured as follows.

[Production of drug substance] Rock having the following composition in terms of oxide (% is% by weight): Na ₂ O 1.8% MgO 1.7% Al ₂ O ₃ 17% SiO ₂ 60% P ₂ O _{5 0.16% SO 3 1.3% Cl 0.038} % K 2 O 3.7% CaO 3.1% TiO 2 0.85% MnO 0.090% Fe 2 O 3 10% NiO 0.013% CuO 0.001% ZnO 0.018% Rb ₂ O 0.020% SrO 0.031% ZrO ₂ 0.023% BaO 0.043% Others 0.113% was crushed to a particle size of 300 to 400 μm, and the crushed product 100
To the parts by weight, 2.5% by weight of titanium phosphide (TiP), 3% by weight of manganese oxide (Mn2O3), 1.5% by weight of magnetite, and 0.5% by weight of zirconia were added and mixed.

Water was mixed at a ratio of 20 parts by weight to 80 parts by weight of the above mineral mixture to prepare a laxative. This drug was left for 3 months or more and then used.

[Manufacture of Air Activator] The above-mentioned laxative aged for 3 months or more was diluted with water to a concentration of 5.1% by weight, and the same ball-shaped carrier as that used in the above-mentioned anion generator was added to this. Immerse, take it out and put it in the kiln again.

In the kiln, it was dried at about 300 ° C. for about 6 hours. Subsequently, the temperature of the kiln was raised at a rate of about 50 ° C. per hour, and the temperature of the kiln was raised to 1310 ° C. over about 20 hours. Baking was continued for 4 hours as it was.

Thereafter, the kiln was extinguished, and the kiln was left for 2 days (48 hours) as it was. When the kiln temperature reached 100 ° C. or lower, the kiln lid was opened and the baked balls were taken out. In this way, an air activator was obtained.

The above-mentioned ion generator 3 was installed in the wastewater treatment plant of A town, and the hydrogen sulfide concentration (unit: ppm) and the odor concentration of the aeration tank 4, the sludge storage tank 42 and the precipitation tank 40 were measured. The measurement results are shown in Table 1.

[0061]

[Table 1]

As is clear from Table 1, the hydrogen sulfide concentration and the odor concentration in the aeration tank and the sludge storage tank, which were high at the time of installation, were remarkably reduced by the installation of the ion generator, and the water treatment system The strange odor inside has decreased.

As described above, according to the water treatment apparatus of the present invention, the activity of microorganisms can be enhanced by including a large amount of negative ions in the air used for aeration. Therefore, the offensive odor generated from the aeration tank can be reduced.

The present invention is not limited to the above embodiment, but can be implemented in various other modes.

For example, the ion generator of this embodiment is
Although there is only one introduction part that introduces air into the ion generation chamber,
This can be divided into two, and the air can be directly sent to the recess 32 and the peripheral space 33, respectively.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a water treatment device according to an embodiment of the present invention.

FIG. 2 is an ion generator used in the water treatment apparatus of FIG.

3 is a cross-sectional view of the ion generator of FIG.

FIG. 4 is a cross-sectional view showing a state where the ion generator of FIG. 2 is filled with a negative ion generator.

FIG. 5 is a diagram showing a state of an air flow flowing in the ion generator of FIG.

FIG. 6 is a system configuration diagram of a wastewater treatment system according to an embodiment of the present invention.

[Explanation of symbols]

1 Water treatment device 2 air blower 3 Ion generator 4 aeration tank 5 Air intake 6a, 6b piping 10 Ion generation chamber 11 activity room 12,15 Introduction 13, 14 Discharge part 16 insertion slot 17 Lid 20 Gap divider 21 Flange 22 Cylindrical wall 23 Bottom wall 24 Negative ion generator

Claims (10)

[Claims] 1. A water treatment device for feeding air sent from an air blower to an aeration tank and treating the water in the aeration tank with microorganisms, wherein anion generator filled with a negative ion generator is used to generate ions. A water treatment device comprising an ion generator provided with a chamber between the air blower and the aeration tank. 2. The water treatment device according to claim 1, wherein the negative ion generator is tourmaline. 3. The water treatment apparatus according to claim 1, wherein the negative ion generator is obtained by coating the surface of carrier particles with a laxative containing a rare earth as a main component and baking the same. 4. The water according to claim 1, wherein the ion generating device further includes an active chamber filled with an air activator on a downstream side of the ion generating chamber. Processing equipment. 5. The air activator is at least Na, M
100 parts by weight of mineral fine powder containing g, Al, Si, S, K, Ca, Ti and Fe as main components in an amount of 95% by weight or more in terms of oxide, titanium phosphide (TiP) 1 to 4 parts by weight,
The water treatment device according to claim 4, wherein the surface of the carrier particles is coated with a laxative containing 3 to 5 parts by weight of manganese oxide and 1 to 2 parts by weight of magnetite and baked. 6. The ion generating chamber includes a cylindrical portion whose axis is provided in a substantially vertical direction, an introducing portion for introducing the air into the cylindrical portion, and an exhaust portion for exhausting the air from the cylindrical portion. The cylindrical portion is vertically divided into a lower section and an upper section by a partition plate, and the lower section communicates with the introduction section, and its axis is parallel to the axis of the cylindrical section. And a voided cylindrical wall that is vertically provided on the voided partition plate so that the negative electrode is filled with the negative ion generator and communicates with the discharge part. 1 to 5
The water treatment device according to any one of claims. 7. The gap partition plate is integrally formed with the gap cylinder wall, and is provided at a flange portion provided around the gap cylinder wall and at a bottom of the gap cylinder wall. 7. The water treatment device according to claim 6, which has a bottom. 8. A water treatment method for blowing air into an aeration tank and treating water in the aeration tank with a microorganism, wherein the air passes through an ion generating chamber filled with a negative ion generating body and is aerated. A water treatment method characterized by being blown into a tank. 9. A water treatment device that blows air sent from an air blower to an aeration tank to treat the water in the aeration tank with microorganisms, the water treatment apparatus being disposed between the air blower and the aeration tank. An ion generator comprising an ion generating chamber filled with a negative ion generator through which air sent from a blower passes. 10. A cylindrical portion, the axis of which is provided in a substantially vertical direction, an introducing portion for introducing the air into the cylindrical portion, and an exhaust portion for discharging the air from the cylindrical portion. Is vertically divided into a lower section and an upper section by a gap partition plate, and the lower section communicates with the introduction section, and the axis is parallel to the axis of the cylindrical section. An ion generator, comprising: a voided cylindrical wall vertically provided on a gap partition plate, wherein the upper section is filled with the negative ion generator and communicates with the discharge unit.