JPS63209701A - Method and device for removing water - Google Patents

Abstract

PURPOSE:To remove water from sewage and concentrate the sewage by incorporating a frother into the sewage in the storage tank of a simple flush toilet, introducing air into the sewage, and aerating the sewage to remove the air contg. steam along with bubbles. CONSTITUTION:A water removing device is set to the sewage storage tank for a simple flush toilet through a lid. The inside pipe 7 of the water removing device is slightly immersed in the sewage, and the outside pipe 6 provided with the lid 8 having an inspection hole 9 is immersed in the sewage slightly deeper than the inside pipe 7. An air diffuser 10 is provided to the tip of the inside pipe 7 for introducing air to diffuse air, and the water is evaporated in the vicinity of the diffuser by the bubbles 14 formed by the action of the frother previously incorporated in the sewage. The bubbles and air pass through the space between the outside pipe 6 and the inside pipe 7, and are removed from a bubble removing pipe 11. In this case, the air and bubbles are effectively removed by using a fan 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water removal method and a water removal device, and more particularly to a method for removing or separating and recovering water from a composition containing a large amount of water, such as sewage. The present invention relates to a water removal device used in this method.

[Conventional technology and its problems]

Compositions that contain a large amount of water, such as sewage stored in tanks for simple flush toilets, are mostly water, and in order to store this, a container such as a tank with a fairly large capacity is required. It comes like this. Therefore, it is extremely desirable to remove the water content of the wastewater stored in such a tank, since this will reduce the number of times the tank has to be filled with wastewater. On the other hand, it is also common practice to obtain water from seawater, etc., and various methods have been developed.
It is necessary to handle a large amount of water, and it is extremely important to easily and efficiently collect and obtain only water.

[Problem that the invention seeks to solve]

The problem to be solved by the present invention is to develop a method for extremely simply and efficiently removing only water from a composition containing a large amount of water, and to develop a water removal device used in this method. It is to develop.

[Means for solving problems]

This problem is achieved by introducing air into the water to be treated containing a foaming agent to generate foam, and then removing the foam.

That is, the present invention provides a water removal method characterized by introducing air into treated water containing a foaming agent to generate foam, and then removing air containing water stem air together with the generated foam. This is related to.

[Function and structure of the invention]

According to the research conducted by the present inventor, the following has become clear. In other words, when a foaming agent such as a surfactant is added to a composition containing a large amount of water and air is blown into the composition to foam it, the water evaporates as bubbles are generated and the vapor pressure in the air near the water surface increases. It became clear that a considerable amount of water could be removed by collecting this air together with the bubbles that were formed.

Therefore, a large amount of bubbles are generated, and the water can be removed by an extremely simple operation of removing air near the water surface.

The foaming agent used in the present invention may be any foaming agent as long as it produces foam, and a wide range of foaming agents that have been conventionally used can be used. Specific examples include various surfactants, saponins, dextrins, etc. Examples of the surfactants include nonionic, cationic, anionic, and amphoteric surfactants.

The type and amount of the foaming agent to be added may be appropriately determined depending on the type of water composition to be added and the amount (concentration) of water. For example, if the water to be treated is sewage, fatty acid Surfactants other than salts are preferred.

After the foaming agent is mixed preferably uniformly, air is blown into the mixture to create foam, and the resulting foam is removed together with the air, thereby removing moisture along with the foam. The amount of air introduced at this time is not particularly limited, and may be any amount that causes sufficient foaming.

Typical examples of compositions containing a large amount of water to be used in the method of the present invention include sewage and seawater, and various other waste liquids can also be used. Particularly preferable examples of sewage include sewage stored in a pumping type tank and sewage stored in a simple flushing tank.

A method for carrying out the method of the present invention will be described below with reference to the drawings, taking a typical example of a standing sewage tank for simple flushing as an example. However, Figure 1 is an explanatory diagram showing the implementation method, in which (1) is a wastewater storage tank for simple flushing, (2) is an explanatory diagram showing the implementation method.
) is toma, (3) is case, (4) is manhole, (5)
2 shows the water removal device, and FIG. 2 shows the water removal device (5
), in which (6) is the outer pipe and (7) is the outer pipe.
is the inner pipe for introducing air. Further, (8) is a pipe cover, which has an inspection hole (9). (10) is an air diffuser, (11) is a pipe for removing bubbles and moisture, (1
2) indicates a fan. In addition, (13) represents the water surface of sewage as (
14) indicates foamed foam.

First, the water removal device (5) is installed in the tank (1) through the toma (2) and in the case (3). In this installation,
The water removal device (5) has an inner pipe (7) slightly submerged in waste water.
N tN and the outer pipe (6) is the inner pipe (7)
It is installed so that it is immersed slightly deeper in the wastewater than the

When air is introduced from the air introduction pipe (inner pipe (7)) and diffused from the air diffuser bag (RA) (10), the foaming agent previously contained in the wastewater Bubbles are generated due to the action of , and water in the wastewater evaporates, increasing the vapor pressure near the wastewater interface.These bubbles (14) and air flow between the outer pipe (6) and the inner pipe (7). The bubbles are removed through the space between them via the bubble removing bar (11).

At this time, if a fan (12) is used, bubbles and moisture can be removed more efficiently. By generating these bubbles, surprisingly, a large amount of water can be removed.

The material of the pipe used in this case is not particularly limited, and examples include various steel pipes, metal pipes, and various synthetic resin pipes. Moreover, its size may be appropriately determined according to the capacity of the tank (1), etc.

〔Example〕

The method of the present invention will be explained in more detail with reference to Examples below.

This was carried out using the apparatus shown in FIGS. 1 and 2.

However, various conditions such as the capacity of the tank used, the concentration of sewage, and the amount of sewage are as per the respective laws.

0 Capacity of tank: 2d O Sewage l: 1.4rrf O Foaming agent species Mi: Sodium alkylhenzenesulfonate 0 Amount of foaming agent: Approx. 60g 0 Air introduction counterfeit: 1017 minutes 0 Diameter of outer pipe: 4 inch Diameter of inner pipe: 1/2 inch Treatment days: 2 days Amount of water removed: 10 (1 [Effect] As is clear from the above examples, a considerable amount of water can be removed very easily with a simple method using a simple device. Water can be removed efficiently.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of carrying out the method of the present invention, and FIG. 2 shows an example of a water removal device used therein. ! ...Simple washing wastewater storage tank 2...
・Toma 3... Case 4... Manhole 5... Water removal device 6... Outer pipe 7... Inner pipe 8... ... Lid 9 ... Inspection hole IO ... Intake device 11 ... Bubble removal pipe 12 ... Fan 13 ... Sewage water surface 14... Bubbles (or more)

Claims (3)

[Claims] (1) A water removal method characterized by introducing air into treated water containing a foaming agent to generate bubbles, and then removing air containing water vapor together with the generated bubbles. (2) Immerse the tip of the double-walled pipe in the water to be treated,
The water removal method according to claim 1, characterized in that air is introduced through the inner pipe and air containing water vapor is removed together with bubbles generated from between the inner pipe and the outer pipe. (3) A water removal device characterized in that an air introduction pipe is installed inside a pipe with at least one end open, and an air diffuser is provided at the end of the air introduction pipe.