Silt Fence

Abstract

To provide a silt fence having a water purification effect at a level not previously seen. [Solution] A silt fence (10) having a float (1) and a curtain (7), in which a charcoal filter (5) is provided on the curtain (7) over a horizontal range longer than 0.5 when the width of the curtain (7) is taken as 1.

Description

[Technical field]

[0001] The present invention relates to a silt fence. [Background technology]

[0002] 2. Description of the Related Art Silt fences (oil fences) that have a water purification effect have been developed (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2016-132876 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the silt fence described in Patent Document 1 leaves room for improvement.

[0005] The present invention has been made in consideration of the above, and aims to provide a silt fence that has a water purification effect on a level that has not existed before. [Means for solving the problem]

[0006] The above objectives are: A silt fence 10, 20, 30 having a float 1 and a curtain 7, The curtain 7 is provided with charcoal filters 5, 6 in a horizontal range longer than 0.5 when the width of the curtain 7 is 1. Silt fences 10, 20, 30; This is achieved by: Effect of the Invention

[0007] According to the present invention, a silt fence with water purification effects can be provided. [Brief description of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating a silt fence 10 according to an embodiment of the present invention. [Diagram 2] 1 is a diagram illustrating a silt fence 20 according to an embodiment of the present invention. [Diagram 3] 1 is a diagram illustrating a silt fence 30 according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, shelter fences 10, 20, and 30 according to embodiments of the present invention will be described with reference to Figures 1 to 3. In addition, in all of the following drawings, the dimensions and ratios of each component are appropriately changed for ease of understanding.

[0010] 1 is a schematic diagram of a front view of a shelter fence 10 according to an embodiment of the present invention. As shown in FIG. 1, the shelter fence 10 according to an embodiment of the present invention includes a float 1, a curtain 7, a weight 2, and a charcoal filter 5.

[0011] In this embodiment, the charcoal filter 5 is a filter composed of a sheet member in which charcoal is kneaded into a nonwoven fabric or woven fabric composed of a resin material. The charcoal is composed of wood charcoal or bamboo charcoal, and it is preferable to use activated charcoal in which the surface area and the number of pores are increased by treating the wood charcoal or bamboo charcoal at high temperature. In addition, the adsorption power for a specific substance may be increased by introducing a functional group into the surface of the charcoal filter 5 or by making the surface hydrophobic, and as an adsorbent, the shape of the charcoal may be changed to powder, granules, fiber, etc., to increase the contact area and improve the adsorption efficiency. The charcoal filter 5 does not necessarily have to be activated charcoal.

[0012] In addition, the charcoal filter 5 may have a width greater than 0.5 when the width of the curtain 7 is taken as 1, but it is preferable that the width of the charcoal filter 5 is the same as or greater than the width of the curtain 7 as shown in FIG. 1. In addition, as shown in FIG. 1, the charcoal filter 5 of this embodiment is provided with two charcoal filters, but it may be provided with one charcoal filter, or with three or more charcoal filters. Furthermore, in this embodiment, one charcoal filter is provided extending in the horizontal direction, but two or more charcoal filters may be provided separately. However, even in this case, the total width of the charcoal filters extending in the horizontal direction and provided separately is configured to be greater than 0.5 when the width of the curtain 7 is taken as 1.

[0013] The shelter fence 10 of the embodiment of the present invention has the following advantages. (a) If the width of the curtain is 1, the charcoal filter 5 is installed at a width greater than 0.5, so that the silt fence can prevent the outflow of contaminated water while the charcoal filter can purify the contaminated water. (i) The charcoal filter uses bamboo charcoal or wood charcoal, which can adsorb harmful substances such as hexavalent chromium and heavy metals. (c) Because bamboo charcoal or wood charcoal is used in charcoal filters, the functional groups on the surface of the bamboo charcoal or wood charcoal, such as carboxyl groups, hydroxyl groups, and methoxyl groups, can chemically bond with organic substances, increasing the adsorption power.

[0014] 2 is a schematic diagram of a front view of a shelter fence 20 according to an embodiment of the present invention. As shown in FIG. 2, the shelter fence 10 according to an embodiment of the present invention includes a float 1, a curtain 7, a weight 2, a charcoal filter 5, an air tube 9, and an air pump 11.

[0015] The silt fence 20 shown in FIG. 2 is configured by adding an air tube 9 and an air pump 11 to the silt fence 10 shown in FIG. 1. The air tube 9 may or may not be provided with an aeration stone. The air tube 9 may be provided with an ultrafine porous film and nonwoven fabric at the opening to generate microbubbles or nanobubbles. The air pump 11 may be provided with a solar power generation device and use solar power generation electricity, may be provided with a hydroelectric power generation device or a wave power generation device and use hydroelectric power generation electricity, or may use external electricity.

[0016] The shelter fence 20 of the embodiment of the present invention has the following advantages. (a) Since the charcoal filter is exposed to air, the air creates a water current, which increases the effectiveness of the filter. (i) Since the charcoal filter is exposed to air, an environment in which aerobic bacteria can live in the charcoal can be created. (c) Aeration can stimulate the movement of aerobic bacteria present in the water, thereby improving and stabilizing water quality.

[0017] 3 is a schematic diagram of a front view of a shelter fence 30 according to an embodiment of the present invention. As shown in FIG. 3, the shelter fence 30 according to an embodiment of the present invention includes a float 1, a curtain 7, a weight 2, a charcoal filter 6, an air tube 9, and an air pump 11.

[0018] The charcoal filter 6 is a filter constructed by forming a mesh bag in the curtain 7 and sealing granular charcoal or bamboo charcoal in the bag. The mesh bag is made of synthetic resin, but may be made of natural materials such as hemp or cotton.

[0019] Also, there may be cases where shellfish and aquatic plants are sealed in instead of or in addition to the charcoal filter 6. Since the tank is provided with an aeration function, shellfish and aquatic plants can live actively.

[0020] The shelter fence 30 according to the embodiment of the present invention has the following advantages. (a) The charcoal filter 6 has granular charcoal placed in a mesh bag, and therefore has a greater water purification effect than the charcoal filter of the above-described embodiment. (i) The charcoal filter 6 can be used as a habitat for shellfish and aquatic plants, enabling water purification through biological filtration.

[0021] The above-mentioned embodiment is a preferred example of the present invention, and various technically preferable limitations are attached to it, but the scope of the present invention is not unduly limited by the above description. In addition, all of the configurations described in the above-mentioned embodiment are not essential components of the present invention. In addition, the configurations described in the above-mentioned embodiment may be added to or combined with each other. [Industrial Applicability]

[0022] The present invention can be widely used in shelter fences. [Explanation of symbols]

[0023] 10, 20, 30 Silt Fence 1 Float 2 Weight 5, 6 Charcoal filter 7. Curtains 9 Air Tube 11 Air Pump

Claims

1. A silt fence having a float and a curtain, A silt fence in which a charcoal filter is provided over a horizontal range of the curtain that is longer than 0.5 when the width of the curtain is 1 in the horizontal direction.

2. 10. The silt fence of claim 1, further comprising an air tube and an air pump for directing outside air over the charcoal filter.

Images