JP2013247949A - Water treating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water treating device that is downsized, applicable to existing breeding environment, and appropriate for culture of aquatic organisms and plants.SOLUTION: There is provided a water treating device comprising a water receiving tank 10 for temporary storing water for processing from a water source, a biological treating tank 20 for biologically treating water of the water receiving tank 10, and a balancing tank 30 discharging water to the water source after storing the biologically cleaned water treated in the biological treating tank 20, wherein the biological treating tank 20 is provided with one or more helical microorganism attached carrier 21, and the balancing tank 30 is provided with a microbubble line 40 that returns microbubble-containing water, generated by making the cleaned water to generate microbubbles, to the water receiving tank 10.

Description

  The present invention relates to a water treatment apparatus. More specifically, the present invention relates to a simple water treatment apparatus that purifies water contaminated during cultivation of freshwater fish, saltwater fish, shellfish, seaweeds, and the like.

  Conventionally, microorganisms are used when performing treatments using microorganisms such as activated sludge treatment and purification of rivers and lakes.

  In addition, a circulating fish farming system is described in which fish and shellfish can be efficiently cultivated by recycling and recycling of breeding water using the purification action of microorganisms.

  Many conventional breeding aquariums and aquaculture facilities, which are called circulation type, have been made based on experience and intuition. Ammonia, which is one of the main components of seafood excreta, is toxic to seafood, but in the conventional circulation system, purified microorganisms (nitrifying bacteria) that naturally grow and adhere to the filter media layer. It is hard to say that the design based on the amount of ammonia excreted by fish and shellfish and the ammonia oxidizing ability of purified microorganisms is made to the extent that ammonia is detoxified using the metabolic capacity of the fish. Therefore, in anticipation of safety, breeding density is kept low, and in aquariums that feed only about the weight maintenance, or live fish tanks of restaurants that keep feeding without food until they are served as a guide, total water exchange every 30 to 40 days is a guide In addition, a quarter to one-third of the breeding water is updated every 10 to 14 days. In addition, in the eel circulation fish farming method, water is constantly supplied so that the entire water is changed in 2 to 20 days.

  On the other hand, in Patent Document 1, the present invention circulates and recycles breeding water designed and constructed based on the physiological and ecological knowledge of the aquaculture target fish and shellfish, the ammonia oxidation ability of purified microorganisms, and the like. The aim is to provide an aquaculture system, that is, a circulating filtration aquaculture system, and to use it for efficient aquaculture of marine seafood, and the upper limit breeding density, food intake, and oxygen consumption of seafood that change with growth Physiological and ecological knowledge such as quantity, nitrogen excretion, ammonia oxidation rate by purified microorganisms such as nitrifying bacteria, and nitric acid decomposition rate of denitrifying bacteria as parameters (Circulation tank) and a circulating filtration aquaculture system composed of a denitrification tank attached if desired.

  Patent Document 2 also discloses a system for purifying ammonia-based substances excreted by aquatic animals into harmless nitrates using microorganisms from below the net-type biofiltration device 1 and the box-type biofiltration device 2. It is described that ammonia oxidizing bacteria (aerobic bacteria) settled on coagite or the like are activated by sending micro / nano bubbles, and the ammonia component in the water tank 3 is oxidized and converted into nitrous acid by its action. At this time, in Patent Document 2, a micro / nano bubble generating device, a diffuser tube, and a porous material inhabiting nitrifying bacteria are inserted into the water tank, and the micro / nano bubble generated by the micro / nano bubble generating device An aquatic aquaculture tank in which the micro / nano bubble generating device and the air diffuser are arranged so that bubbles generated from the air diffuser are in contact with the porous material is disclosed.

  Japanese Patent Laid-Open No. 5-76257   JP 2012-95630 A

  However, the method described in Patent Document 1 can be applied only to aquatic organisms of a single type and the same growth process.

  Moreover, in the method described in Patent Document 2, aquatic organisms and / or plants are cultivated or cultivated in the presence of excessive microorganisms, and the problem of microbial contamination remains. Furthermore, it is difficult to apply the method described in Patent Document 2 to the existing aquatic aquaculture environment.

  Therefore, the subject of this invention is providing the water treatment apparatus suitable for cultivation of the aquatic organism and plant which is compact and can be applied also to the existing rearing environment.

  Another object of the present invention is to provide an aquaculture and / or plant cultivation system provided with the water treatment apparatus.

  Still another object of the present invention is to provide a water purification device that is more compact and can be retrofitted to an existing water tank or the like.

Means to solve the problem

The present invention for solving the above problems relates to the following items.
A water receiving tank for temporarily storing water from a water source to be treated;
A biological treatment tank for biologically treating the water in the receiving tank;
A water purification apparatus comprising: an adjustment tank that stores biologically purified water in the biological treatment tank and then discharges the water to the water source;
The said biological treatment tank is equipped with one or more helical microorganism contact carriers, The water purification apparatus characterized by the above-mentioned.

2. The water treatment apparatus according to 1, wherein the adjustment tank includes a fine bubble line that generates fine bubbles in purified water and returns the generated fine bubble-containing water to the water receiving tank.

3. The water treatment apparatus according to 2, wherein the fine bubble line includes a fine bubble generation nozzle that generates fine bubbles, and an oxygen concentrator that sends concentrated oxygen to the nozzle.

4 The fine bubble line includes an ozone generator on the downstream side of the oxygen concentrator,
4. The water treatment apparatus according to 3, wherein a deozonization tank equipped with an aeration device is provided between the water receiving tank and the microorganism treatment tank.

5. The water treatment apparatus according to any one of 1 to 4, wherein a drain-in for removing accumulated deposits is provided on the bottom side of the water receiving tank, the adjusting tank, or both.

6 The water treatment apparatus according to any one of 1 to 5, wherein the water treatment apparatus is movable.

7 The water source is a water tank for raising aquatic organisms or for growing hydroponic plants,
The water treatment apparatus according to any one of 1 to 6, wherein the water treatment apparatus is provided directly below the aquaculture tank.

8 A water treatment device according to any one of 1 to 7, wherein a post-treatment device is provided in a drain line from the adjustment tank.

9 An aquaculture system comprising the water treatment apparatus according to any one of 1 to 8.

The plant cultivation system provided with the water treatment apparatus of any one of 10 1-8.

11 An aquaculture / plant cultivation system comprising the water treatment apparatus according to any one of 1 to 8.

12 A water purification device for purifying water by installing one or more at the bottom of the water tank,
A cylindrical water-impermeable body lower than the water level of the aquarium,
A water inlet provided at the bottom of the water-impermeable body;
A water outlet provided at the top of the water impermeable body;
A helical microbial carrier provided inside the water-impermeable body;
An air outlet provided in the vicinity of the water inlet inside the water-impermeable main body,
A water purifier comprising an air pump for sending air to the air outlet.

13 Further, the water purification device comprises:
13. The water purification apparatus according to 12, wherein the water purification apparatus has a filth guide part disposed at the bottom of the water tank and having a taper toward a water inlet of the water-impermeable main body.

Effect of the invention

  According to the water treatment device of the present invention, it is possible to efficiently purify the water of the farm or the plant cultivation system with a simple configuration. Moreover, the water treatment apparatus of the present invention can be installed later in an existing aquaculture environment, etc., or by placing a water tank for aquaculture and ornamental fish in the upper stage and providing a water treatment apparatus in the lower stage, it is compact and attractive. It is possible to prepare a growth environment for aquatic organisms.

  It is drawing which shows an example of the water treatment apparatus which concerns on 1st Embodiment of this invention.   It is drawing which shows another example of the water treatment apparatus which concerns on 1st Embodiment of this invention.   It is drawing which shows another example of the water treatment apparatus which concerns on 1st Embodiment of this invention.   (A), (b) and (c) It is drawing which shows an example of the water treatment apparatus which concerns on 2nd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
(First embodiment)
First, the water treatment apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. In addition, although the water treatment of a farm is demonstrated below, this invention is not limited to the water treatment of a farm.

  As shown in FIG. 1, the water treatment apparatus of the present invention includes a water receiving tank 10 that temporarily stores water from a farm 1 that is a water source to be processed, a biological treatment tank 20 that biologically treats water in the water receiving tank 10, And an adjustment tank 30 that stores the biologically purified water in the treatment tank 20 and discharges it to the water source. The biological treatment tank 20 includes a plurality of biological treatment tanks (four tanks in the example of FIG. 1), and each biological treatment tank 20 includes a spiral microbial carrier 21.

  Water from the farm, which is a water source to be treated, is introduced into the water receiving tank 10 by a water supply line 11 equipped with a pump, and the introduced water is biologically treated by the biological treatment tank 20 and flows out to the adjustment tank 30 ( Overflow). And in the adjustment tank 30, it is the structure which returns the purified supernatant liquid to the farm 1 via the drainage line 41.

  If desired, a fine bubble line 50 provided with fine bubble generation nozzles 51 is provided at the bottom of the adjustment tank 30 and the bottom of the water receiving tank 10, and the water after the treatment of the adjustment tank 30 is gas-liquid mixed by air or an oxygen concentrator 52. However, a configuration can be adopted in which fine bubbles are generated by the fine bubble generation nose 51 and returned to the water receiving tank 10. Thus, by returning the fine bubbles to the water receiving tank 10, it becomes possible to float the organic components (particularly, oil components) in the untreated water in the water receiving tank 10.

  In the present embodiment, the freshwater or seawater farm 1 is used as a water source to be treated by the water treatment apparatus of the present invention, but the present invention is not limited to this. It can be widely applied to water such as algae and seaweed.

  In the water treatment apparatus of the present invention having such a configuration, the biological treatment tank 20 includes one or more spiral microbial carriers 21. The spiral microbial carrier 21 is a microbial carrier in which a biological carrier is provided in the shape of a plastic thread ring on a spiral metal support. As shown in FIG. 1, this is arranged in a frame for a biological treatment tank in the vertical direction to form a biological treatment tank. Four sets of biological treatment tanks each having a plurality of helical microbial carriers are arranged in series to form the biological tank 20 of the present apparatus.

  Microorganisms form colonies on the spiral microbial carrier 21 in a state that matches the ecosystem, and the microbial colonies formed in this manner contain various microorganisms from bacteria to protozoa without peeling off. The food chain of the microbial group on the spiral microbial carrier 21 can perform a long and stable microbial action for a long time. That is, there are many different types of microorganisms in the upstream (water receiving tank 10 side) tank that treats water having the highest BOD, and the types and number of microorganisms correspond to changes in water quality (high BOD to low BOD). Change.

  Thus, by providing a tank provided with a plurality of helical microbial carriers 21 corresponding to the water quality changing from a high BOD to a low BOD in the biological treatment tank 20, it becomes possible to treat domestic wastewater quickly and reliably in a small space. . The spiral microbial carrier 21 in the biological treatment tank 20 may spontaneously generate microorganisms, but is pre-implanted with microorganisms or seeded with inoculums that promote the growth of microorganisms. It is preferable.

  In addition, in each divided biological treatment tank 20, microorganisms corresponding to the condition of the water to be treated live in a stable form on the spiral microorganism carrier 21, so that the load of organic matter and the change in water temperature are changed. This makes it possible to perform stable processing that is less affected by Since stable processing is possible, maintenance and operation adjustment are easy. Furthermore, since the spiral microbial carrier 21 with high contact efficiency is used, the amount of air supplied to the treatment tank 20 is greatly reduced.

  In the embodiment shown in FIG. 2, the ozone generator 53 is provided between the fine bubble generating nozzle 51 and the oxygen concentrator 52 in the fine bubble line 50 in the water treatment apparatus shown in FIG. 1. By switching the ozone generator 53 on (ozone fine bubbles) and off (oxygen fine bubbles), the ozone fine bubbles and oxygen fine bubbles can be switched and sent to the water receiving tank 10. Thus, it is also possible to purify the water in the farm 1 using ozone.

  In addition, when processing the water of the farm 1 introduced into the water receiving tank 10 with ozone fine bubbles, it is preferable to provide a deozonation tank 10 ′ instead of directly adding water containing ozone to the biological treatment 20. The ozone removal tank 10 ′ treats the treated water containing ozone fine bubbles with relatively large bubbles generated by normal aeration. In this way, ozone is decomposed by treating with relatively large bubbles by aeration, and the treated water is introduced into the biological treatment tank 20 via the deozonation tank 10 '.

  The water treatment apparatus according to the first embodiment of the present invention described above has a very simple configuration and saves space due to the action of the fine substance carrier. Therefore, it can be retrofitted to water sources to be treated such as aquaculture without taking up space for new installations. Furthermore, the water treatment apparatus of the present invention can be installed on a loading platform such as a truck to constitute a mobile treatment apparatus.

  In addition, the well-known pre-processing apparatus and post-processing apparatus according to the objective are installed in the front | former stage (namely, the water-receiving tank 10 side) and back | latter stage (namely, drainage line 41 side) of the water treatment apparatus concerning 1st Embodiment of this invention. can do.

  In a preferred embodiment of the present invention, it is convenient and preferable to use a catalyst layer using an adsorption / decomposition / antibacterial catalyst sold under the name of light pellets obtained from MELTEC Co., Ltd. as a post-treatment device. This catalyst is a catalyst in which a catalyst component is supported on an artificial zeolite, has a high cation exchange capacity, and has a capability of adsorbing or decomposing agrochemicals, surfactants, and heavy metals while having fine crystal pores exhibiting a sieving effect. ing.

  Moreover, it is preferable on maintenance that each of the water receiving tank 10 and the adjusting tank 30 is provided with a drain-in for removing deposits deposited on the bottom side thereof.

(Second Embodiment)
Next, the water treatment apparatus concerning 2nd Embodiment of this invention is demonstrated based on FIG. The water treatment apparatus shown in FIG. 2 is, for example, a water treatment apparatus installed in the lower stage of the aquarium 1 ′, and is configured for the purpose of purifying household and commercial ornamental fish tanks and purifying commercial aquaculture tanks. is there.

  The water treatment apparatus shown in FIG. 3 is an application example of the water treatment apparatus shown in FIGS. 1 and 2, and has a form in which the water treatment apparatus of the present invention is arranged directly under a water source for water treatment. In addition, in embodiment shown in FIG. 3, although the fine bubble line 50 is provided, in order to simplify an apparatus more, the fine bubble line 50 may be abbreviate | omitted or provided so that the fine bubble line 50 can be attached or detached, The microbial bubble line 50 may be provided at the time of use. Thus, by making it possible to attach the fine bubble line 50 at the time of use, it is possible to set the water treatment apparatus itself at a low cost, attach the fine bubble generation line at the time of maintenance, etc., and perform the fine bubble treatment.

  In the water treatment shown in FIG. 3, the water supply line 11 ′ (drainage line from the water tank 1 ′) can be configured to fall due to gravity. In addition, the water treated in the biological treatment tank 20 having the spiral microbial carrier is returned to the water tank 1 ′ through the adjustment tank 30 by the drain line 12 ′ (water supply line from the water tank 1 ′ side). Yes.

  The water treatment apparatus according to the second embodiment of the present invention configured as described above is cheaper and more compact, and can reduce the number of times of water change in the aquarium for aquarium fish and the aquaculture tank. Moreover, since the water treatment apparatus concerning 2nd Embodiment of this invention is a very compact and simple structure, the aquatic organism cultivation kit or hydroponics which integrated the water tank and the water treatment apparatus concerning 2nd Embodiment It can also be sold as a kit.

(Third embodiment)
Next, based on FIG. 4, the water purification apparatus concerning 3rd Embodiment of this invention is demonstrated. The water purification apparatus according to the third embodiment shown in FIG. 4 is an apparatus retrofitted to an existing water tank, water source, etc. using a spiral microbial carrier.

  More specifically, the water purification device 100 according to the third embodiment of the present invention is a water purification device that purifies water by attaching one or more water tanks to the bottom of the water tank, and has a cylindrical shape that is lower than the water surface of the water tank. A water impermeable main body 101, a water inlet 102 provided at the bottom of the water impermeable main body 101, a water outlet 103 provided on the top or top side surface of the water impermeable main body 101, Air is supplied to the spiral microbial carrier 104 provided inside the permeable main body 101, the air outlet 105 provided near the water introduction port inside the water non-permeable main body 101, and the air outlet 106. It is mainly composed of an air pump P to be sent.

  The water-impermeable main body 101 is a material that does not allow water to enter inside, for example, a plastic cylindrical body. The water-impermeable main body 101 may be a transparent member or a non-transparent material, and the outer surface can be subjected to, for example, a logo or an advertisement.

  The water inlet 102 is composed of one or a plurality of openings provided on the bottom side of the water-impermeable main body 101, and the water in the water tank W is impermeable to water when the air blows out from the air outlet 105. It is a water inlet for drawing the inside of the sex main body 101.

  The water discharge port 103 is an opening for returning the water introduced from the water introduction port 102 at the bottom to the water tank W, which is treated with the spiral microbial carrier, and the top of the water-impermeable main body 101 and / or Or it arrange | positions at the top side surface.

    The spiral microbial carrier 104 is a microbial carrier similar to the spiral microbial carrier 21 shown in the first and second embodiments, and one or a plurality of the spiral microbial carriers 104 are arranged inside the water-impermeable main body 101.

  The air blowing port 105 is an air blowing port 105 for discharging the air sent from the aeration pump P as bubbles, and is disposed above the water introduction port 102 inside the water impermeable carrier 101. The air outlet 105 is preferably arranged along the inner peripheral surface of the water-impermeable carrier 101, draws water from the water inlet 101 into the water-impermeable main body 101, and spirals the microbial carrier 104. It has the effect of sending air to the microorganisms that have landed on the surface.

  When the water purification apparatus according to the third embodiment configured as described above is arranged inside the water tank W as shown in FIG. 4B, the water introduction port 102 is accompanied with the blowing of air from the air blowing port 105. The water in the water tank W is drawn into the water impermeable carrier 101.

  The water drawn into the water impermeable carrier 101 is subjected to microbial treatment by the action of the spiral microbial carrier 104 and then discharged from the water outlet 103. In addition, although the apparatus shown in FIG.4 (b) arrange | positioned one water purification apparatus 100 in the water tank W, as shown in FIG.4 (c), it is also possible to arrange | position two or more. In this case, it is preferable to supply air in series from one air pump from the viewpoint of simplification of the apparatus.

  Moreover, in 3rd Embodiment, the water purification apparatus 1 is arrange | positioned in the bottom part of the water tank W, and the filth guide part which has a taper toward the water inlet 102 of the water-impermeable main body 101 can be arrange | positioned in the water tank W bottom part. preferable. If comprised in this way, all the filth in a water tank will be guided to the water purification apparatus 1, and can be processed with the spiral microbial support | carrier 104. FIG.

  As described above, according to the water purification apparatus according to the third embodiment, it is possible to purify water by retrofitting it to a treated water source such as the inside of a water tank with a very simple configuration. Therefore, it can be arranged in a tank for ornamental fish, an aquaculture tank, an aquaculture pond, a ginger, a water tank for plant hydroponics, etc., and water purification can be carried out by a simple method.

  The water treatment apparatus according to the first embodiment of the present invention has a very simple configuration and saves space due to the action of the fine substance carrier. Therefore, it can be retrofitted to water sources to be treated such as aquaculture without taking up space for new installations. Furthermore, the water treatment apparatus of the present invention can be installed on a loading platform such as a truck to constitute a mobile treatment apparatus.

  The water treatment apparatus according to the second embodiment of the present invention configured as described above is cheaper and more compact, and can reduce the number of times of water change in the aquarium for aquarium fish and the aquaculture tank. Moreover, since the water treatment apparatus concerning 2nd Embodiment of this invention is a very compact and simple structure, the aquatic organism cultivation kit or hydroponics which integrated the water tank and the water treatment apparatus concerning 2nd Embodiment It can also be sold as a kit.

  According to the water purification apparatus according to the third embodiment, it is possible to purify water by retrofitting it to a treated water source such as the inside of a water tank with a very simple configuration. Therefore, it can be arranged in a tank for ornamental fish, an aquaculture tank, an aquaculture pond, a ginger, a water tank for plant hydroponics, etc., and water purification can be carried out by a simple method.

DESCRIPTION OF SYMBOLS 10 Water receiving tank 10 'Deozonation tank 20 Biological treatment tank 21 Spiral microorganism carrier 30 Adjustment tank 41 Drain line 50 Fine bubble line 51 Fine bubble generation nozzle 52 Oxygen concentrator 100 Water purification apparatus 101 Water impermeable main body 102 Water inlet 103 Water discharge port 104 Spiral microorganism carrier W Water tank

Claims (13)

A water receiving tank for temporarily storing water from a water source to be treated;
A biological treatment tank for biologically treating the water in the receiving tank;
A water purification apparatus comprising: an adjustment tank that stores biologically purified water in the biological treatment tank and then discharges the water to the water source;
The said biological treatment tank is equipped with one or more helical microorganism contact carriers, The water purification apparatus characterized by the above-mentioned.   2. The water treatment apparatus according to claim 1, wherein the adjustment tank includes a fine bubble line that generates fine bubbles in purified water and returns the generated fine bubble-containing water to the water receiving tank.   The water treatment apparatus according to claim 2, wherein the fine bubble line includes a fine bubble generation nozzle that generates fine bubbles and an oxygen concentrator that sends concentrated oxygen to the nozzle. The fine bubble line is equipped with an ozone generator on the downstream side of the oxygen concentrator,
The water treatment apparatus according to claim 3, further comprising a deozone tank provided with an aeration device between the water receiving tank and the microorganism treatment tank.   5. The water treatment apparatus according to claim 1, wherein a drain-in for removing accumulated deposits is provided on a bottom side of the water receiving tank, the adjusting tank, or both. .   The water treatment apparatus according to any one of claims 1 to 5, wherein the water treatment apparatus is movable. The water source is a water tank for raising aquatic organisms or for growing hydroponic plants,
The water treatment device according to any one of claims 1 to 6, wherein the water treatment device is provided directly below the aquaculture tank.   The water treatment device according to any one of claims 1 to 7, wherein a post-treatment device is provided in a drain line from the adjustment tank.   An aquaculture system comprising the water treatment device according to any one of claims 1 to 8.   The plant cultivation system provided with the water treatment apparatus of any one of Claims 1-8.   An aquaculture / plant cultivation system comprising the water treatment device according to any one of claims 1 to 8. A water purification device for purifying water by attaching one or more to the bottom of the aquarium,
A cylindrical water-impermeable body lower than the water level of the aquarium,
A water inlet provided at the bottom of the water-impermeable body;
A water outlet provided at the top of the water impermeable body;
A helical microbial carrier provided inside the water-impermeable body;
An air outlet provided in the vicinity of the water inlet inside the water-impermeable main body,
A water purifier comprising an air pump for sending air to the air outlet. Furthermore, the water purification device comprises:
The water purification apparatus according to claim 12, further comprising a filth guide portion disposed at a bottom portion of the water tank and having a taper toward a water introduction port of the water impermeable main body.

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