Water suspended matter adhesion material

Abstract

To provide a device that allows long-term continuous operation of polluted water of a sedimentation basin or the like.SOLUTION: A water suspended matter adhesion material includes a loop-shaped string body having specific gravity of 1 or less and provided in a horizontal direction in at least one direction from a core body.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a material for adhering suspended solids in water, which is used for the clarification of polluted water generated by sewage, dredging, etc. [Background technology]

[0002] Conventionally, various devices have been used to treat polluted water, such as membranes and inclined water flow plates, but these devices have drawbacks such as adhesion of pollutants and clogging of the devices when used for a long period of time. One method for solving these problems is to add a coagulant to polluted water, and then treat it in a flocculation tank, and if necessary a thickening tank, a sedimentation tank, and a filtration tank in that order. A mixing tank is provided between the sedimentation tank and the filtration tank, and slime-forming bodies made up of at least one of string-like material, cotton-like material, and net-like material are provided in the mixing tank so that they are opposed to, diagonally opposite to, or parallel to the water flow, and these are further spread out in a zigzag pattern. A method for treating polluted water is known (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-053602 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention was completed as a result of extensive research into equipment that can treat polluted water continuously for a long period of time without the concomitant use of chemicals such as coagulants and that does not require maintenance. [Means for solving the problem]

[0005] That is, the present invention is a material for adhering to suspended solids in water, in which looped string-like bodies having a specific gravity of 1 or less are arranged horizontally in at least one direction from the core in the longitudinal direction of the core. [Effects of the Invention]

[0006] The underwater suspended matter adhesion material of the present invention can effectively adhere suspended matter to the string-like body even after long-term use, and because the suspended matter adheres in long string-like (worm-like) shapes, once they grow to a certain size they detach under their own weight, fall to the bottom of the water, and new material adheres, allowing for continuous operation over long periods of time without maintenance. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a side view of the material for adhering to suspended solids in water according to the present invention. [Figure 2] Plan view of the underwater suspended matter adhesion material in Figure 1. [Figure 3] A plan view of an underwater suspended matter adhesion material with string-like objects with a specific gravity of 1 or less attached to a core body 1 in all four directions. [Figure 4] A plan view of an underwater suspended matter adhesion material in which string-like objects with a specific gravity of 1 or less are attached in all directions to a core body 1. [Figure 5] A side view showing the state in which the underwater suspended matter adhesion material is suspended from the float. DETAILED DESCRIPTION OF THE INVENTION

[0008] The form of the material for adhering to suspended solids in water of the present invention is itself publicly known, as described in Patent Document 1, for example. The greatest feature of the present invention is that the loop-shaped string-like material 2 is a material that floats on water, in other words, has a specific gravity of 1 or less. This property makes it possible to operate continuously for a long period of time without maintenance, even without the use of a flocculant or the like. In another embodiment, straight or wavy string-like material can be used instead of the loop-shaped string-like material 2. As the raw material for the material for adhering suspended matter in water according to the present invention, synthetic resins such as polyethylene and polypropylene are preferably used.

[0009] Figure 1 shows a side view of an underwater suspended solids adhesion material in which loop-shaped string-like bodies 2 with a specific gravity of 1 or less are attached horizontally on the left and right sides of a core body 1. Figure 2 is a plan view of the underwater suspended solids adhesion material of Figure 1. Figure 3 is a plan view of the underwater suspended solids adhesion material when loop-shaped string-like bodies 2 are attached in four directions from the core body 1. Figure 4 is a plan view of the underwater suspended solids adhesion material when loop-shaped string-like bodies 2 are attached in all directions from the core body 1. Figure 5 is a side view showing the underwater suspended solids adhesion material suspended from a float 3.

[0010] When the looped string-like material 2 having a specific gravity of 1 or less is provided on the core body 1, it may be provided in a straight line in the longitudinal direction on the core body 1 or in a spiral shape on the core body 1.

[0011] The shape of the looped string-like material 2 having a specific gravity of 1 or less may be a round, hollow round, polygonal such as a triangle or a square, or a flat shape like Himokawa Udon noodles. The material for adhering to suspended solids in water of the present invention can be formed integrally with the core body 1 using the looped string-like material 2 in a known direction.

[0012] Next, the method of using the material for adhering to suspended solids in water of the present invention will be described. Figure 5 shows a horizontal-flow sedimentation basin in which a suspended solids material is suspended vertically from a float 3, with a weight 4 attached to the bottom of the suspended solids material. The suspended solids material units 5 with floats 3 configured in this manner were connected by ropes and deployed in multiple directions across the horizontal-flow sedimentation basin, facing the water flow in an opposite, diagonal, and parallel orientation, to treat polluted water. The suspended solids material loops 2 have a specific gravity of less than 1, making them buoyant and held in an upward position by the water flow. Over time, suspended solids grow and adhere in worm-like formations on the surface of the suspended solids material loops 2, and within one month of operation, they fell to the bottom due to their own weight. New suspended solids grew in worm-like formations after the fallen suspended solids material loops 2. [Explanation of symbols]

[0013] 1... Core body 2. Looped string

Claims

[Claim 1] A material for adhering to suspended solids in water, characterized in that looped string-like bodies having a specific gravity of 1 or less are horizontally arranged in at least one direction from the core body in the longitudinal direction of the core body.

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