JPH0427494A - Device for treating liquid - Google Patents

Abstract

PURPOSE:To efficiently bring treating agent into contact with liquid for treating object and to improve liquid treating efficiency by incorporating the treating agent in a porous vessel and constituting the treating agent so as to repeatedly dip into the liquid and expose to the air. CONSTITUTION:In a treating vessel 4 having an introducing hole 2 for introducing the liquid and a discharging hole 3, a rotary shaft 7 is fitted in the cylindrical and porous vessel 6 incorporating activator and the other treating agent 5 and fitted to the treating vessel 4 so as to make this horizontal. The rotary shaft 7 is supported with bearings 8 and connected to a motor 9 at the one end to make the rotation free. Further, a gas dispersing device 10 is arranged in the treating vessel 4 and a part of the vessel is made to dipping condition into the liquid. This vessel 6 may be porous-state as the whole or at a part thereof and may be liquid permeable and gas permeable. Then, as the means wherein the treating agent 5 is repeatedly dipped into the liquid and exposed to the air, various means are available, including vertical movement, shaking movement and the other various reciprocation in addition to rotating the vessel 6.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to the treatment of liquids such as water and sewage, industrial wastewater, and gray water that are related to human life and production activities (biological reactions such as cultivation, oxidation, and activation). (hereinafter referred to as ``treatment'') to obtain a predetermined water quality.

<Prior Art and Problems> There have been various devices in the past to treat liquids such as water and sewage, industrial wastewater, and gray water to obtain a predetermined water quality by bringing an activator or other treatment agent into contact with the liquid to be treated. proposed and implemented.

However, in most of these conventional devices, the processing agent in a fixed state is simply brought into contact with the liquid flowing from the primary side to the secondary side, and the processing efficiency per hour is low. Therefore, prior to filing the present application, the applicant of the present application proposed a liquid processing device that can improve the processing efficiency.

(Patent Application No. 1-206963, Utility Application No. 1-14512.
(See No. 1).

The present invention relates to an improvement on the above-mentioned proposal, and aims to provide a liquid processing apparatus that can further improve processing efficiency.

Means for Solving the Problems> In order to achieve the above-mentioned objects, the present invention is such that a processing agent is contained in a porous container and is repeatedly caused to appear and disappear into a liquid. The container is cylindrical, and is placed in a horizontal position with a portion submerged in liquid so that it can rotate freely.The container is also a double cylinder consisting of an inner cylinder and an outer cylinder, and the inner cylinder is It is an airtight can body. In addition, an aeration device is installed inside the processing tank, and the container is provided with blades that protrude outward to scrape up and stir the liquid. The blade body provides rotational force to the container through buoyancy.
It is provided so as to protrude outward or inward from the container.

In the above and the following descriptions, the expression "arranged so as to be freely rotatable in the horizontal direction" means that it is arranged so as to be freely rotatable with the central axis of rotation being horizontal.

Function> In the liquid treatment apparatus of the present invention configured as described above,
The processing agent contained in the porous container alternately comes into contact with the liquid and air, increasing processing efficiency by repeating a state in which it escapes from the liquid and a state in which it is submerged in water as the container rotates. In other words, the processing agent that has escaped from the liquid comes into contact with air as the liquid between the processing agents falls due to gravity, and the next time it is submerged in water, the processing agent is submerged with air between the processing agents, causing the liquid to drop. This will supply bubbles into the liquid that are effective for processing. Furthermore, when submerged in water, it comes into new contact with the liquid, improving contact efficiency. On the other hand, since the falling liquid collides with the liquid in the treatment tank on the water surface that is in contact with the air and mixes with the liquid, more air bubbles are supplied into the liquid. Furthermore, the rotation of the container agitates the liquid in the processing tank, further improving processing efficiency.

As for the container, by making its shape cylindrical,
The capacity of the processing agent accommodated can be increased compared to the outer diameter dimension. In addition, by forming a double cylinder consisting of an inner cylinder and an outer cylinder, the surface area of the container is increased, and the contact efficiency between the processing agent stored between the inner cylinder and the outer cylinder and the liquid can be further increased. The distance from the rotation center to the processing agent becomes longer, the rotation speed increases, and - the required processing efficiency can be increased.

Furthermore, by submerging the lower part of the inner cylinder, which is an airtight can body, buoyancy is generated, and the weight of the container can be reduced.

The air diffuser provided in the processing tank supplies bubbles into the liquid that are effective for processing the liquid.

The blades protruding outward from the container for liquid scraping and agitation come off the water surface as the container rotates, and in addition to splashing the scraped up liquid into contact with the processing agent, they also stir the liquid in the processing tank. do. Another blade protruding outward or inward from the container receives gas bubbles supplied from an aeration device provided in the processing tank, and generates a force to rotate the container by its buoyancy.

<Example> An example of the present invention will be described below based on the drawings shown in FIGS. 1 to 4. Note that the same parts are denoted by the same reference numerals, and redundant explanations will be omitted.

FIG. 1 is a partially sectional perspective view showing a liquid treatment apparatus 1 of the present invention. A rotating shaft 7 is attached to a cylindrical porous container 6 containing an activator and other processing agents 5 in a processing tank 4 having an inlet 2 and an outlet 3 for introducing liquid, and the rotating shaft 7 is horizontally positioned. It is attached to the processing tank 4 so that it looks like this. The rotating shaft 7 is supported by a bearing 8, and a motor 9 is connected to one end so that the rotating shaft 7 can rotate freely. Furthermore, an aeration device 10 is provided within the processing tank 4 . A portion of the container 6 is submerged in the liquid. The container 6 only needs to be porous in whole or in part, and should have water permeability and air permeability. In addition, the shape of the container may be various other than the cylindrical shape, such as a prismatic shape, a flat plate shape, or a polygonal shape, and a container of any shape may be attached to some rotating member. As for the means for repeatedly causing the processing agent to appear and disappear into the liquid, various means can be considered in addition to rotating the container in this way, such as vertical movement, rocking, and various other reciprocating movements. Furthermore, even in the case of rotation, the center of rotation is not limited to the geometric center position of the container, and may be biased to an arbitrary position.

The embodiment shown in FIG. 2 has a cylindrical inner tube 11 and an outer tube 1.
A rotating shaft 7 is attached to a double cylinder container 13 consisting of 2,
A processing agent 5 is accommodated between an inner cylinder 11 and an outer cylinder 12.

The embodiment shown in FIG. 3 is similar to the inner cylinder 11 of the embodiment shown in FIG.
The inner cylinder 14 is an airtight can body.

Further, on the outer periphery of the container 15 constructed in this manner, that is, on the outer cylinder 12, a blade body 16 for scraping up and stirring the liquid, which is recessed on the rotational direction A side, is provided to protrude outward.

In the embodiment shown in FIG. 4, the blades 17 are provided on the outer cylinder 12 of the container 15 in the opposite direction to the embodiment shown in FIG. Processing device 18
This shows that. The blade body 17 contains gas bubbles 19 supplied from a diffuser 10 provided at a predetermined position in the processing tank 4.
The buoyant force causes the container 15 to rotate in the A direction.

In the embodiment shown in FIG. 5, the blade body 17 is
is provided on the outer periphery of the plate 2 so as to protrude inwardly, and the end surface of the container 20 is connected to the plate 2.
1. In addition to the same function as the embodiment shown in FIG. 4, the blades 17 of this container 20 function as a so-called partition to prevent the contained processing agent 5 from moving or becoming uneven.

The liquid treatment device according to the present invention can be used as a water purification device not only for treating liquids such as water and sewage water, industrial wastewater, and gray water, but also for various fish tanks and fish bowls. In this case, it can be widely applied regardless of the presence or absence of a liquid inlet and outlet.

<Effects of the Invention> The liquid treatment apparatus according to the present invention has the content as described above, and is capable of efficiently bringing a treatment agent into contact with a liquid to be treated, and at the same time removes air bubbles from the liquid. The liquid treatment efficiency can be improved by supplying and stirring the liquid.

Moreover, by making the inner cylinder of the double-tube container into an airtight can body, the weight of the container can be reduced by utilizing buoyancy, and the efficiency of the operation of the apparatus can also be improved. Furthermore, the aeration device installed in the treatment tank and the blades installed in the container enable stronger agitation of the liquid and the supplied air bubbles and stronger contact between the treatment agent and the liquid, improving the efficiency of the treatment required. be able to. In addition, the separate blade body can rotate the container using the air bubbles supplied from the air diffuser, making it possible to process the liquid even more efficiently.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional perspective view showing one embodiment of the present invention. FIG. 2 is a partial cross-sectional perspective view showing another embodiment of the container. FIG. 3 is a still another embodiment of the container. FIG. 4 is a partial cross-sectional perspective view showing another embodiment of the present invention in which a container according to another embodiment is arranged in the processing tank. --- Treatment agent diffuser outer cylinder 17 birds 81 woods

Claims (7)

[Claims] (1) In a liquid processing device that processes the liquid to be treated by bringing it into contact with a processing agent in a processing tank, the processing agent is housed in a porous container and is made to repeatedly appear in and out of the liquid. A liquid processing device characterized by: (2) The liquid processing device according to claim 1, wherein the container is cylindrical and is rotatably arranged in a horizontal state with a portion submerged in the liquid. (3) The liquid processing device according to claim 2, wherein the container is a double cylinder consisting of an inner cylinder and an outer cylinder. (4) The liquid processing device according to claim 3, wherein the inner cylinder is an airtight can body. (5) The liquid processing device according to any one of claims 1 to 4, further comprising an aeration device provided in the processing tank. (6) The liquid processing apparatus according to any one of claims 2 to 5, wherein the container is provided with a blade body for scraping up and stirring the liquid so as to protrude outward. (7) An air diffuser is provided in the processing tank, and a blade body that receives gas bubbles supplied from the air diffuser and applies rotational force to the container by its buoyancy is protruded outward or inward into the container. The liquid treatment device according to any one of claims 2 to 4, further comprising: