JPH03296496A - Water purifying apparatus - Google Patents

Abstract

PURPOSE:To efficiently decompose a contaminant component such as ammonia by constituting a water purifying apparatus by providing two modules connected by a flange having an oxygen supply means provided therein to the forcible circulation flow path for circulation water of a water tank. CONSTITUTION:When a circulation pump 10 is operated, the org. matter such as the excretion or leftover feed of the fish in a water tank 1 and the water containing ammonia or nitrate generated from the org. matter in the water tank enter a circulation pump 10 and are heated by a hot water heating unit 8 to be passed through the first and second modules 4, 5 and an ultraviolet sterilizing unit 9 to be circulated to the water tank 1. In this circulation system, the org. matter or ammonia is subjected to oxidative decomposition by aerobic bacteria and the oxygen contained in the air sucked from an oxygen supply means 6 in the second module 5 to become nitrate. The nitrate-containing water is circulated to the first module 4 to be decomposed into nitrogen and water by the action of hydrogen generated by an anaerobic bacteria group.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a household or commercial water purification device for purifying water such as ornamental fish tank water, fish culture water, bath water, etc. This relates to a water purification device that purifies sludge water by mixing it.

2. Description of the Related Art Conventionally, this type of water purification device was developed by, for example,
As shown in Japanese Patent No. 5697, it has a structure as shown in FIG. That is, an ultraviolet irradiation tank 32 equipped with an ultraviolet lamp 31 therein, a first microorganism treatment tank 33 and a second microorganism treatment tank 34 each equipped with a microorganism implantation body are connected in series. Each space has an inlet 35, 36, 37 for introducing treated water from a fish breeding tank (not shown) or the treated water tank into the treated water tank, and an inlet 35, 36, 37 for introducing the treated water from the fish breeding tank (not shown) or the treated water tank into the treated water tank, and a port 35, 36, 37 for introducing the treated water from the fish breeding tank (not shown) or the treated water tank into the treated water tank. Outlet port 38.39 for sending out to breeding tank
．． 40 is connected with a hose. Furthermore, there is no means for increasing the activity of each biological treatment tank.

Problems to be Solved by the Invention In general, in aquarium fish tanks, the water in the tank has problems such as the generation of ammonia and dirt and the growth of pathogenic bacteria due to the metabolic effects of the fish, the decomposition of leftover rice cakes, and excreta. be.

Furthermore, nitrous acid and nitric acid, which are generated during the decomposition process of nitrogen compounds such as ammonia, were also a major issue.

In an attempt to partially solve these problems, recently, purification filters using microorganisms and sterilization means using ultraviolet rays have begun to be proposed, as shown in the above-mentioned conventional examples.

The above-mentioned conventional configuration in which microbial treatment tanks are simply connected in series has a problem in that the interior of the microbial treatment tank cannot be maintained in an optimal breeding state for aerobic bacteria.

The present invention improves purification performance by effectively propagating a plurality of bacteria with varying breeding states, such as aerobic bacteria and anaerobic bacteria, and eliminates the need for connecting piping between treated water tanks, which was seen in conventional configurations, and eliminates water leaks. The aim is to resolve quality issues.

Furthermore, the purpose is to improve the purification performance of the purification treatment equipment by using minerals as a fixed bed for bacteria.

Means for Solving the Problems In order to solve the above problems, the present invention provides a forced circulation flow path for circulating water in an aquarium, and a flange connecting the first module, the second module, and each of the modules made of mineral material. A water purification unit is constituted by an oxygen supply means provided in the flange,
Further, the oxygen supply means includes a supply port communicating with the first module, a supply nozzle forming a jet, an air induction port formed in a downstream end wall of the supply nozzle, an output path for receiving the jet, and the second
It is composed of a flange substrate that forms a flow path pattern consisting of an output port communicating with the module, and a flange cover that forms an air suction flow path.

Furthermore, the fixed bed for breeding bacteria is CaO1Si○z
, AlzOs , and MgO1Fe○ are minerals containing a large amount of alkaline components.

Effect of the present invention With the above-mentioned configuration, first, aquarium water containing organic matter such as fish excrement and uneaten food, as well as ammonia and nitrates generated from the organic matter, enters the anaerobic bacteria group, and Nitrates are decomposed by artificially cultivated anaerobic bacteria and bacterial activators attached to the surface of minerals in a film form. The nitrates are decomposed and removed, and the ammonia-containing aquarium water flows into the second module together with the oxygen-containing air sucked in by the oxygen supply means. Here, the ammonia contained in the aquarium water is efficiently oxidized to nitrate in an oxygen-rich atmosphere by an artificially cultured aerobic bacteria group and bacteria activator that adheres to the surface of the mineral material in the module in the form of a film. It is decomposed and the water is purified.

In addition, pathogenic bacteria of fish that have grown in the aquarium flow out from the first module and the second module, and then flow into the ultraviolet sterilization unit where they are killed by ultraviolet rays.

Such purification and sterilization effects keep the water in the aquarium clean at all times.

EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings. FIG. 1 is an external view of an aquarium fish tank to which the water purification device of the present invention is applied, and FIG. 2 is a diagram showing the principle of construction of the aquarium fish tank. In FIGS. 1 and 2, 1 is a water tank, and 2 is a stand for the water tank 1, which has a water purification unit 3 built therein. The water purification unit 3 has a fixed bed of microorganisms made of mineral substances sealed therein, and connects the first module 4 and the second module 5 arranged in series between each module, and uses an ejector action to draw outside air into the flowing water. A joint flange unit 7 consisting of a joint flange in which the oxygen supply means 6 to be introduced is installed, a hot water heating unit 8 provided upstream of the first module 4, and an ultraviolet sterilization unit 9 provided downstream of the second module 5. as well as,
It is constructed using a circulation pump 10 as a basic element. 1st
Anaerobic bacteria are cultured in module 4, and aerobic bacteria are cultured in second module 5. An inflow path 11 of the circulation pump 10 communicates with the bottom of the water tank 1 via a solenoid valve 12 . An outflow path 13 is attached to the ultraviolet sterilization unit 9, and purified water is sent to the aquarium 1 through the outflow path 13. 1
4 is an air separator that separates fine air bubbles sucked in by the oxygen supply means 6; 15 is an air solenoid valve installed in the air introduction pipe 16; 17 is a water leakage sensor that detects water leakage from the water tank 1 and the water purification unit 2. °18 is a control box containing a control circuit.

FIG. 3 is a perspective view of the water purification unit 3.

In the figure, the hot water heating unit 8 includes a hot water heater 1.
In addition to 9, a hot water temperature thermostat 20, a float sensor 21, and a hot water temperature overrise prevention thermostat 22 are installed. An ultraviolet lamp 23 is attached to the ultraviolet sterilization unit 9. The joining flange unit 7 is divided into a flange substrate 24 and a flange cover 25.

FIG. 4 shows the water channel configuration of the flange cover 25.

In the figure, 26 is a supply port communicating with the first module 4, 27 is a supply nozzle that forms a jet stream, 28 is an air suction port formed on the downstream end wall of the supply nozzle 27, 29 is an output path that receives the jet stream, 30 is an output port communicating with the second module 5.

Saddle rock type ceramics made from blast furnace granulation was used as the mineral material. This granulated blast furnace is produced by rapidly cooling 0.5 tons of slag generated per 1.0 tons of molten iron from blast furnaces in steel plants, and is mainly used as a raw material for cement and as a soil improvement material. Blast furnace granules are porous and glassy, with Cab and SiOx.

The main component is A11a3, and also contains MgO, FeO, etc.

In the above configuration, the circulation pump IO is operated.

The aquarium water containing organic matter such as fish excrement and uneaten food in the aquarium tank 1, as well as ammonia and nitrates generated from the organic matter, enters the circulation pump 10 from the bottom of the aquarium 1 via the inflow channel 11, and is pumped After being pressurized by the hot water heating unit 8 and heated by the hot water heating unit 8, the first module 4 and the second module 5 are heated.
, passes through the ultraviolet sterilization unit 9 and circulates to the aquarium 1. In this circulation system, first, in the second module 5, organic matter such as fish excrement and uneaten food in the aquarium, as well as ammonia generated from organic matter, are removed from artificial substances that are attached to the surface of mineral materials from the beginning. It is oxidized and decomposed into nitrates by cultured aerobic bacteria, voluntary bacteria, their activated substances, and oxygen contained in the air sucked in by the oxygen supply means 6. This oxidative decomposition reaction of ammonia to nitrate is expressed by the following reaction formula% formula%Next, the water containing the components decomposed to nitrate returns from the ultraviolet sterilization unit 9 to the aquarium 1, and the water generated in the aquarium 1 Together with organic matter and ammonia, it circulates to the first module 4, where, due to the action of hydrogen generated from the organic matter in the circulating water by the artificially cultured anaerobic bacteria group that is originally attached to the surface of the mineral material, Decomposes into nitrogen and water.

This decomposition reaction is expressed by the following formula.

Noff-+AH-+H, +O, . . . ■Also, pathogenic bacteria on fish that have grown in the aquarium 1 are sterilized by the ultraviolet rays of the ultraviolet sterilization unit 9. Furthermore, the ultraviolet sterilization unit 9 also has the function of removing free chlorine from the circulating water, thereby further improving the fish breeding environment.

As mentioned above, free chlorine contained in raw water, organic matter and ammonia generated in the aquarium, fish pathogens, etc. are decomposed by artificially cultured bacteria and enzymes attached to the surface of mineral materials. or sterilized with an ultraviolet lamp 23. The purified water passes through the outflow path 13 and enters the air separator 14, where the ultrafine bubbles mixed therein grow and return to the water tank 1.

On the other hand, the above-mentioned oxygen supply means 6 sucks atmospheric air through the air suction port 28 using a jet stream formed by the supply nozzle 27, and sends the air into the circulating water. Here, if the amount of oxygen in the sucked air is made larger than the amount required for oxidative decomposition of ammonia in formulas (1) and (2), water containing a large amount of oxygen returns to the water tank 1. As a result, unlike conventional aquariums, there is no need to install an aeration pipe and constantly use an air pump to air the tank.

Granulated blast furnace granules used as mineral materials are porous and glassy, and as shown in the table, contain Cab, 5ift, and Altos as main components, as well as MgO, FeO, and the like. This main component, CaO, is generated during the oxidative decomposition of ammonia in the second module 5 described above.
) to carry out a neutralization reaction and work to suppress a decrease in the pH value of the water in the aquarium 1.

Table Composition (%) of blast furnace granulated water In addition, on the surface of mineral substances whose main component is CaO etc., there are many divalent positive ions such as calcium in water. This is because bacteria are generally negatively charged, so the mineral material whose surface is covered with positive ions serves as an optimal fixed bed for artificially cultured bacteria and enzymes.

Effects of the invention (1) One of the water purification modules connected in series is an anaerobic bacteria, and the other is an aerobic bacteria. By efficiently breeding bacteria that have different functions, ammonia, nitrite, and It can efficiently decompose many dirt components such as nitric acid. As a result, when used in a fish tank, the number of water changes is drastically reduced, and the growth of algae in the tank can be prevented.

(2) There are no piping connections between each water purification module, which reduces the number of component parts and reduces assembly man-hours, reducing costs.

(3) As a fixed bed of bacteria installed in each water purification module, a saddle-shaped ceramic made of blast furnace granulation containing a large amount of CaO is used, so ammonia decomposes in the water in the water tank and acid is generated. However, the pH does not decrease and shift to the acidic side. Therefore, it is no longer necessary to neutralize the water by adding alkali to the aquarium water as in the past.

(4) An oxygen supply means for suctioning atmospheric air by an ejector action is arranged upstream of the water purification module, and the suction air amount is adjusted so that a larger amount of oxygen is supplied than the amount of oxygen required by the purification module. By setting , the water in the aquarium has enough oxygen dissolved in it. Therefore, instead of inserting an aeration pipe into the aquarium and using an air pump to constantly kill the air bacteria group as in the past, it is possible to decompose the breeding materials and ammonia generated in the aquarium from the start of operation. In addition, UV rays can kill pathogenic bacteria in fish, which can prevent fish from dying from disease.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a water purification device showing an embodiment of the present invention, Fig. 2 is a diagram showing the principle of construction of the device, Fig. 3 is an external perspective view of a purification unit of the same device, and Fig. 4 is the same. FIG. 5 is an external perspective view of a conventional microbial treatment tank for water purification. 3... Water purification unit, 4... First module, 5... Second module, 6...
Oxygen supply means, 7... joint flange unit,
8... Hot water heating unit, 9... Ultraviolet sterilization unit.

Claims (3)

[Claims] (1) A forced circulation channel that circulates water in the aquarium includes a first module and a second module made of a mineral, a flange connecting the first module and the second module, and a flange provided in the flange. A water purification device consisting of an oxygen supply means. (2) the oxygen supply means is a supply port communicating with the first module;
A flange substrate and air forming a flow path pattern consisting of a supply nozzle that forms a jet, an air suction port formed on a downstream end wall of the supply nozzle, an output path that receives the jet, and an output port that communicates with the second module. The water purification device according to claim 1, comprising a flange cover forming a suction flow path. (3) Mineral materials are CaO, SiO_2, Al_2O_3,
The water purification device according to claim 1, wherein the main components are MgO and FeO.