JPH04313381A - Catchment treating equipment - Google Patents

Abstract

PURPOSE:To collect rainfall and sprayed water in a golf course in a state wherein agricultural chemicals are removed and to prevent the agricultural chemicals from being washed away to the outside of the golf course by forming a cylindrical drainage part which perforates the inside of an adsorbent layer and is elongated to the ground surface in the upper end of the catchment pipe of a catchment treating device and making the circumferential wall of this drainage part water-permeable. CONSTITUTION:A drainage system 4 constituted of a drainage pipe for rain water made of concrete or synthetic resin is connected to the bottom part 2 of a catchment pipe 1 made of the same material via a through-hole 3. Further a cylindrical drainage part 6 described below is formed in the upper end 5 of the catchment pipe 1 and communicated therewith and elongated to the ground surface. Many through-holes 8 are bored on the circumferential wall 7 of this drainage part 6. The drainage part 6 is made of water-permeable concrete or water-permeable synthetic resin and has a circular cross section. An adsorbent layer 10 is provided by vertically arranging bag bodies packed with granular activated carbon so as to surround the circumferential wall of the drainage part 6. Thereby water contg. concd. agricultural chemicals in the beginning of rainfall is absorbed into soil 15 and the agricultural chemicals are naturally decomposed. However surface water 17 in the beginning is passed through the adsorbent layer 10, purified and thereafter collected to the catchment pipe 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water collection and treatment device, and more particularly to a water collection and treatment device suitable for installation at golf courses and the like to collect surface water containing agricultural chemicals.

0002

[Prior Art] Conventionally, this type of water collection treatment equipment has
Hollow concrete manholes are known, and if they are installed at a golf course etc., they should be buried, for example, at about every 30 meters or about every 5,000 square meters, and their bottoms should be connected to a drainage system such as a drain pipe. Water from rain was collected in manholes and discharged into the drainage system for wastewater treatment.

0003

[Problem to be Solved by the Invention] However, in such a manhole, there is a risk that a large amount of pesticides, etc. may be contained in the wastewater discharged during rain. It was necessary to set up

[0004] Therefore, a water collection treatment device is used in which a water collection pipe whose bottom part is connected to a drainage system and whose top end is open is buried in a golf course, etc., and an adsorbent layer is spread over the top of the water collection pipe. After the water passes through the adsorbent layer and the pesticides are adsorbed by the adsorbent layer, the water is collected at the opening of the water collection pipe and discharged into the drainage system connected to the bottom of the water collection pipe for wastewater treatment. Conceivable.

[0005] In such a water collection and treatment device, when there is a large amount of rainfall, the upper end of the water collection pipe has a flat opening, so the amount of water that can be processed per unit time is small. There is a problem that the water overflows into the water and flows into low-lying areas as surface water containing high concentrations of pesticides, causing environmental pollution. To prevent this, there is a problem in that it is necessary to bury a large number of water collection and treatment devices.

[0006]

[Means for Solving the Problems] It is an object of the present invention to provide a water collection and treatment device which solves the problems of the conventional water collection and treatment devices and which is particularly suitable for use in golf courses. is connected to a drainage system and has an adsorbent layer above the water collection pipe with an open top end. The present invention is characterized in that a cylindrical drainage section is formed, and a peripheral wall of the drainage section is formed to be water permeable. Further, a drain pipe may be connected above the adsorbent layer, and
The adsorbent layer may be constructed by vertically disposing a large number of bags made of a water-permeable material filled with granular activated carbon.

[0007]

[Action] Rainfall or sprinkled water permeates into the adsorbent layer while containing pesticides, etc. The pesticides are adsorbed by the adsorbent layer and the purified water is collected in a three-dimensional structure that extends inside the adsorbent layer to the ground surface. The pesticide flows into the water collection pipe through the permeable drainage section and is discharged into the drainage system with an extremely low concentration of pesticide. In addition, if a water pipe is connected above the adsorbent layer, excess fertilizer and pesticides contained in groundwater in the soil will be adsorbed by the adsorbent layer.
Maintain good soil conditions. Furthermore, if the adsorbent layer is constructed by vertically arranging a large number of bags made of a water-permeable material filled with granular activated carbon, the construction and preparation of the adsorbent layer will be simplified.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show an example in which the water collection and treatment apparatus of the present invention is installed at a golf course. In the figures, 1 is a water collection pipe made of concrete or synthetic resin,
It was connected to a drainage system 4 consisting of a rainwater drainage pipe made of concrete or synthetic resin through a through hole 3 provided in the bottom part 2. In addition, a cylindrical drainage section 6 with a circular cross section made of water-permeable concrete, water-permeable synthetic resin, or water-permeable synthetic fiber is installed in communication with the upper end 5 of the water collection pipe 1 and extends all the way to the ground surface. . In the illustrated embodiment, the peripheral wall 7 of the drainage section 6
A large number of through holes 8 were bored in the hole. Further, a large number of bags 9 made of water-permeable synthetic fibers filled with granular activated carbon are arranged vertically adjacent to each other so as to surround the peripheral wall 7 of the drainage part 6 on the upper side of the water collection pipe 1. Layer 10 was formed. Further, an adsorbent layer 1 is provided on the upper side of the adsorbent layer 10.
Sand 11 was spread to protect 0. Also, through hole 1
A concrete drainage pipe 13 in which a large number of pipes 2 are bored is communicated above the adsorbent layer 10. Furthermore, the water collection pipe 1 and the drainage section 6 may be integrated together, or
Both may be removable. In the figure, 14 is a removable lid attached to the upper edge of the opening of the drainage section 6, 15 is soil, and 1
6 indicates grass and 17 indicates surface water.

According to this water collection and treatment device, at the beginning of rainfall, water with the highest pesticide concentration is absorbed into the soil 15 and naturally decomposed by soil microorganisms, etc., and the initial surface water 17 that is not absorbed into the soil 15; In other words, water with a relatively high pesticide concentration flows into the adsorbent layer 10, and the purified water with pesticides adsorbed by the adsorbent layer 10 is extended to the ground surface within the adsorbent layer 10 in the direction of the arrow shown in FIG. The water is collected in the water collection pipe 1 through the permeable drainage part 6, and is further discharged through the through hole 3 into the drainage system 4 connected to the bottom 2 of the water collection pipe 1. In addition, water from subsequent rainfall or watering flows into the adsorbent layer 10 in a state where the pesticide concentration is diluted in the same manner as described above, where the pesticide is further adsorbed, and then the water is collected into the water collection pipe 1 via the drainage section 6. Afterwards, it is discharged into the drainage system 4. In addition, a concrete drainage pipe 13 with a large number of through holes 12 is attached to the adsorbent layer 10.
By communicating upward, excess fertilizer and pesticides contained in the groundwater in the soil 15 are guided into the adsorbent layer 10 through the drain pipe 13 and adsorbed by the adsorbent layer 10, improving the soil condition. maintain. Furthermore, if the adsorbent layer 10 is constructed by vertically arranging a large number of water-permeable bags 9 made of a synthetic fiber material filled with granular activated carbon, the adsorbent layer construction and construction preparation can be easily carried out. . In the illustrated embodiment, the cross-sectional shape of the cylindrical drainage section 6 is circular, but the present invention is not limited to this, and the shape may be rectangular, polygonal, oval, etc., when the water collection and treatment device is installed. It may be set appropriately depending on the location. Further, in the illustrated embodiment, the shape of the bag 9 filled with granular activated carbon and the shape of the entire adsorbent layer 10 are circular, but the present invention is not limited to this, and the shape may be rectangular, polygonal, The shape may be set as appropriate, such as an oval shape, depending on the location where the water collection treatment device is installed, and the size of the bag body 9 filled with granular activated carbon may also be set appropriately depending on the location where the water collection treatment device is installed. do it.

0010

Effects of the Invention As described above, according to the water collection and treatment device of the present invention, a permeable drainage section is formed in the adsorbent layer that is connected to the water collection pipe and extends all the way to the ground surface. The three-dimensional opening expands the opening area and increases the throughput per unit time, so even during heavy rainfall, pesticides, etc. can be removed using the adsorbent layer without leaving surface water on the soil surface. In the removed state, water can be efficiently collected in the water collection pipe via the drainage part, preventing pesticides from being washed away outside the field and causing environmental pollution. Since it is provided with up to 10 holes, cleaning and repair work inside the water collection pipe and the cylindrical drainage section are facilitated. Also, if a drain pipe is connected above the adsorbent layer,
The adsorbent layer absorbs excess fertilizer and pesticides contained in groundwater in the soil, and has the effect of maintaining good soil conditions. In addition, if the adsorbent layer is made up of a large number of water-permeable bags filled with granular activated carbon arranged vertically, bags of any size can be used to suit the construction site. The adsorbent layer can be divided into multiple parts, making it easier to install and prepare the adsorbent layer, and if the adsorbent layer loses its adsorption power or is partially damaged, it can be used to bag only that part. Since it is only necessary to replace the body, the replacement work can be performed extremely efficiently.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of an installed state of one embodiment of the water collection treatment device of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1.

[Explanation of symbols]

1 water collection pipe, 2 bottom,
4 drainage system, 5 upper end,
6 Drainage section, 7 Peripheral wall, 9
Bag body, 10 Adsorbent layer, 13
drain pipe.

Claims (3)

[Claims] Claim 1: A water collection and treatment device in which an adsorbent layer is disposed above a water collection pipe whose bottom part is connected to a drainage system and whose top end is open, the water collection pipe having an adsorbent layer that penetrates the upper end of the water collection pipe. A water collection and treatment device comprising: a cylindrical drainage section extending to the ground; and a peripheral wall of the drainage section formed to be water permeable. 2. The water collection and treatment device according to claim 1, further comprising a drain pipe connected above the adsorbent layer. 3. The collection according to claim 1 or 2, wherein the adsorbent layer is an adsorbent layer in which a large number of bags made of a water-permeable material filled with granular activated carbon are arranged vertically. Water treatment equipment.