JP2002143831A - Method for removing suspended matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspended matter removing method by which the matter suspended in the bottom layer of the water circulating in bathhouse facilities, an aquarium, a nursery or the like is removed efficiently without exerting labor and time by physical treatment without using a filter and chemicals. SOLUTION: The first flow path A is constituted by setting the inclination of a gutter 1a to be 0.86 deg., the first bended part is constituted by connecting a bended member 2a to the lower end of the gutter 1a, the second flow path B is constituted by connecting a gutter 1b to the first bended part and setting the inclination of the gutter 1b to be 0.86 deg., the second bended part is constituted by connecting a bended member 2b to the lower end of the gutter 1b and the third flow path C is constituted by connecting a gutter 1c to the second bended part and setting the inclination of the gutter 1c to be 0.86 deg.. The water to be treated is made to flow from the upper end of the route A, the suspended matter existing in the bottom layer of the water is made to drop out in the straightly advancing direction at the first and second bended parts and removed. The treated water is made to flow over the first and second bended parts and recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of removing a substance suspended in a lower layer of water circulating in a bath facility, an aquarium, a farm, or the like. .

[0002]

2. Description of the Related Art Circulating water, such as bath facilities, aquariums, and aquaculture, contains dead bodies of cells and microorganisms of aging animals, oily substances, dust and scale in the air, that is, water. Non-metallic substances such as magnesium, calcium, silica, and aluminum that are present are all or part of the substances and the like that have changed state due to oxidation-reduction action and are mixed with each other to be suspended in the lower layer of the circulating water. It exists.

[0003] However, when water containing such suspended substances is brought into contact with a contact material or a filter medium in a treatment tank for the purpose of purification treatment by aerobic microorganisms, the substances are removed. In addition, it adheres to the surface of the contact material, the filter material, and the like, and oxygen is not sufficiently supplied to that portion, and the portion becomes anaerobic and cannot be treated with a favorable aerobic microorganism.

Normally, the contact material or the filter material in such a state is back-washed with washing water as it is, or taken out of the tank and rinsed with high-pressure water to remove attached substances. However, it is inefficient because it takes time to stop the processing apparatus or perform processing.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned disadvantages of the prior art, and suspends in the lower layer of circulating water used in bath facilities, aquariums, or farms. An object of the present invention is to efficiently remove a substance in a state by a physical treatment without using a filtering device or a chemical, without any trouble.

[0006]

According to one aspect of the present invention, there is provided a method of removing a suspended substance using a flow path having a downward slope and having a bent portion on the downstream side. Then, the water to be treated is caused to flow from the upstream part of the flow path to the downstream, and the suspended substance present in the lower layer of the water to be treated is ejected from the flow path in the bent portion in the straight direction of the flow. In this method, the treated water from which the suspended matter has been removed is circulated in the bending direction.

A second aspect of the present invention is the method of removing a suspended substance according to the first aspect of the present invention, wherein the gradient of the flow path is 0.58 ° to 1.1 °.
This is a method of removing suspended substances at 5 °.

A third aspect of the present invention is the method of removing a suspended substance according to the first or second aspect of the present invention, wherein the bent portion is formed at a right angle and the bent portion is provided at a plurality of positions. Is the way.

A fourth aspect of the present invention is the method of removing a suspended substance according to the first, second or third aspect of the present invention, wherein the flow rate of the water to be treated containing the suspended substance ejected from the one bent portion is controlled by the flow rate. 4. The method for removing suspended substances according to claim 1, wherein the flow rate of the water to be treated flowing down from the upstream of the road is set to 2 to 3%.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is a method for physically removing suspended substances contained in water circulating in a bath facility, an aquarium, a farm, or the like. That is, a method of removing suspended substances using a flow path having a gradient and having a bent portion in the middle of the flow path, and flowing the water to be treated from upstream to downstream of the flow path. The suspended material present in the lower layer of the water to be treated, together with a part of the water to be treated, is removed at the bent portion by popping out the flow path from the flow path in a direction in which the flow proceeds, and at the same time, removing the suspended material. This is a method of removing suspended substances by circulating the treated water in a bending direction.

The water to be treated is circulating water that is mainly circulated and reused in bath facilities, aquariums, aquaculture farms, and the like, and is used in hot tubs of facilities generally called health lands or day trip hot water. And fish in an aquarium or a farm, or water in a rearing tank.

[0012] As described above, the suspended substance may be a cell of an aging animal, a dead body of microorganisms, an oily substance, dust and scale in the air, that is, magnesium, calcium, silica present in water. Non-metallic substances such as aluminum, which change their state due to oxidation-reduction action and which are all or partly mixed and exist in a suspended state in the lower layer of the circulating water due to their specific gravity differences It is.

The flow path may be, for example, a gutter-like member having a U-shaped, V-shaped, or semi-circular shape, or a pipe-shaped member having a cylindrical or rectangular tube shape. can do. There is no problem with either plastic or metal as the material. For example, as the flow path, a pipe body made of vinyl chloride or a gutter-like pipe having a semicircular cross section obtained by dividing the pipe body in a length direction can be used.

In this flow path, 0.58 ° to 1.15 °
A slope (approximately 1/100 to 2/100) is provided, and a bend is provided below the slope. The bent portion is formed by, for example, using a bent member in which an elbow is equally divided in a length direction and connecting the elbow to the flow path in an upper open state to form a right angle portion. The bent portion is suitably provided at a plurality of locations in order to increase the removal rate of suspended substances contained in the water to be treated.

When the water to be treated containing suspended substances flows from the upstream portion of the flow path constructed as described above, the water to be processed flows down the flow path by the gradient, and flows at the downstream bent portion. And
At that time, the suspended matter having a high specific gravity, which is located in the lower layer of the water to be treated, is straightened by inertia together with some water, jumps up the side wall, is ejected, and is removed.

At this time, it is preferable to set the flow rate of the water to be treated containing suspended substances which is repelled from one bent portion to a flow rate of 2 to 3% of the flow rate of the water to be treated. Here, if the amount ejected from one bent portion is larger than this, the amount of water to be treated simultaneously ejected from the amount of suspended matter will be too large, and the amount ejected from the bent portion will be too large. If the amount is smaller, the suspended substance cannot be sufficiently repelled, and in either case, the processing efficiency becomes poor.

[0017] Further, the water containing a large amount of the repelled suspended substance can be used as a fertilizer once it is received in a suspended substance receiving container and sprayed on compost or humus. The treated water from which the suspended substances have been removed is circulated in the flow channel in a right angle direction, sent to a storage tank or the like, and is reused.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view showing one embodiment of an apparatus used in the method for removing suspended substances according to the present invention.

Embodiment 1 First, as an apparatus for treating water to be treated, as shown in FIG. 1, gutters 1a, 1b and 1c made of vinyl chloride and having a semicircular cross section with a diameter of 150 mm are prepared.
The slope of the gutter 1a is set to 0.86 ° (about 1.5 / 100) to form the first flow path A, and two elbows having a diameter of 150 mm are evenly provided at the lower end of the first flow path A. The upper end of the split bending member 2a is connected to form a first bent portion (right angle portion), the lower end of the first bent portion is connected to the gutter 1b, and the gradient is similarly set to 0.86 °. To configure the second flow path B,
The lower end of the second flow path B is connected to the upper end of the bending member 2b to form a second bent portion (right angle portion), and the lower end of the second bent portion is connected to the gutter 1c to further reduce the gradient to 0. .86 ° to form the third flow path C.

Further, at the upper end of the first flow path A, a water introduction pipe 4 for introducing the water to be treated into the first flow path A is provided.
In the extension direction of the first flow path A near the first bent portion and the second direction.
In the vicinity of the bent portion, in the extension direction of the second flow path B, a suspended substance receiving container 5a or 5b for receiving a treatment containing a large amount of the suspended substance that has been ejected is provided near the lower end of the third flow path C. The treated water storage tanks 6 for receiving the treated water were arranged in the extending direction, respectively, to complete the apparatus used in the method for removing suspended substances of this embodiment. The treated water introduction pipe 4 was provided with a flow control valve 3.

At the upper end of the first flow path A of this apparatus, hot water from a bathtub of a certain healthy land is introduced as water to be treated from a water introduction pipe 4 to remove suspended substances contained in the water. It was decided to remove it. Also, at this time, the amount introduced into the upper end of the first flow path A is 3% of the amount introduced from the first bent portion.
Was adjusted by the flow control valve 3 so that

As a result, the water to be treated flows down the first flow path A → the first bent part → the second flow path B → the second bent part → the third flow path C. At that time, the first bent part and the third bent part 2 At the bent portion, the suspended matter contained in the water to be treated and present in the lower layer is ejected out of each flow path together with a small amount of the water to be treated.
In the first bent portion, the treated water which is received in the suspended substance receiving container 5a and in the second bent portion is respectively received in the suspended substance receiving container 5b, and further, the treated water flowing down from the third flow path C is transferred to the treated water storage tank 6. Accepted.

<Embodiment 2> Using the apparatus of the above-described embodiment 1, water from a fish breeding tank of a certain aquarium is introduced into the first channel A from the treated water introduction pipe 4 as treated water. It was decided to remove suspended substances contained in. Also, the first at that time
The amount introduced into the flow path A was adjusted by the flow control valve 3 so that the amount ejected from the first bent portion became 2% of the introduced amount.

The water to be treated introduced in this way flows down the first flow path A → the first bent part → the second flow path B → the second bent part → the third flow path C, and flows into the first bent part and the second bent part. At the bent portion, the suspended matter contained in the water to be treated and present in the lower layer is ejected out of each channel together with a small amount of the water to be treated.
Treated water which is received in the suspended substance receiving container 5a at the bent portion and the suspended substance receiving container 5b at the second bent portion and further flows down from the third channel C is treated water storage tank 6
Was accepted.

Each of the water to be treated used in Examples 1 and 2 and the treated water treated in Examples 1 and 2 were sampled, and their water quality was determined by the following test items and test methods. Was measured to confirm the effect of the present invention.

<Test Items and Test Methods> The test measurement of each water to be treated and each treated water was carried out after shaking well so as to be uniform before the measurement. 1. Transparency 35m in diameter, with a structure that allows the measurement liquid to be introduced from the top and can be arbitrarily drained from the bottom, with a double cross sign plate at the bottom
m, using a glass tube with a height of 60 cm, filling it with the measuring solution, peeping from above the glass tube, measuring the height (cm) from the bottom where the double cross sign can be clearly identified, It is the transparency of the measurement liquid. 2. SS concentration: Measured based on S69 Announcement 64, Appendix Table 8. Unit of measurement ppm.

[0027]

[Table 1]

<Consideration of Test Results of Examples> As can be seen from the measurement results of Examples 1 and 2 in Table 1 above, the values of the transparency and the SS concentration after the treatment of the water to be treated were all equal. There is a clear superior difference as compared to those values before the treatment, indicating that the method for removing suspended substances of this example is excellent.

[0029]

Therefore, according to the method for removing suspended substances according to the first aspect of the present invention, the substances suspended in the lower layer of the water to be treated can be subjected to a gradient without using a filtering device or chemicals. By simply setting and passing through a flow path configured with a bent portion in the middle thereof, removal can be easily and efficiently performed without any trouble.

Further, by performing this treatment, in the aerobic microorganism treatment in the subsequent step, the suspended substance does not adhere to the surface of the contact material or the filter material of the treatment tank. As a result, the supply of oxygen is sufficiently performed, and a favorable aerobic microorganism treatment can be performed.

According to the method for removing suspended substances according to the second aspect of the present invention, since an appropriate gradient is set in the flow path, the water to be treated flows down the flow path while maintaining an appropriate speed. ,
The substance suspended in the lower layer of the water to be treated can be removed by flipping out the bent portion in the direction of flow.

According to the method for removing suspended solids of the third aspect of the present invention, since the bent portion is formed at a right angle in the flow path and the bent portion is formed at a plurality of positions, the flow path is present in the water to be treated. It is possible to efficiently remove the suspended substances that remain.

According to the method of removing suspended matter of the fourth aspect of the present invention, the flow rate of the treated water containing a large amount of the suspended matter repelled from the one bent portion is reduced by the flow rate of the treated water flowing down from the upstream. Since the content is set to 2 to 3%, the suspended substances can be efficiently removed without being left behind, and the recovery rate of the circulated treated water can be increased.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of an apparatus used for a method of removing suspended substances according to one embodiment.

[Explanation of symbols]

 1a, 1b, 1c Gutter 2a, 2b Bending member 3 Flow control valve 4 Treated water introduction pipe 5a, 5b Suspended substance receiving container 6 Treated water storage tank A First flow path B Second flow path C Third flow path

Claims (4)

[Claims] 1. A method for removing suspended matter using a flow path having a descending slope and having a bend in the middle of the downstream, the method comprising the steps of: The water to be treated is flowed toward, and the suspended substance present in the lower layer of the water to be treated is removed by flipping out the flow path from the flow path in the bending direction at the bent portion, and the suspended substance is removed. A method for removing suspended substances by flowing treated water in a bending direction. 2. The inclination of said flow path is 0.58 ° to 1.15.
2. The method for removing suspended substances according to claim 1, wherein 3. The method for removing suspended solids according to claim 1, wherein the bent portion is formed at a right angle, and the bent portion is provided at a plurality of positions. 4. The flow rate of the water to be treated containing suspended substances which is repelled from the one bent portion is set to 2 to 3% of the flow rate of the water to be treated flowing down from the upstream of the flow path. Or 3) a method for removing suspended substances.