JP2786093B2 - Wastewater treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater treatment apparatus capable of purifying wastewater to minimize water pollution in sewers and rivers.

[0002]

2. Description of the Related Art At present, the progress of water pollution is increasing year by year in various parts of the country, and household wastewater discharged from general households has been purified to some extent without running down. Later attempts have been made to release it into sewers and rivers.

For example, a drainage passage is vertically divided by a water-permeable wall, and a water-permeable partition is provided in a bottom-side drainage passage, and a large number of compartments are provided in a bottom-side drainage passage.
A gutter block in which a purifying material is filled in the room is known. (Refer to Japanese Utility Model Publication No. 3-48315) However, when the wastewater is used for drainage to drain sewers and rivers, for example, when the drainage is performed suddenly, the drainage passages may be disturbed. Before the drainage permeates into the lower room, it flows out downstream with its momentum and may not reach the purification material, so that a sufficient purification action is not performed.

[0004] In particular, all wastewater that has been divided into a U shape by both side walls and a bottom wall and that has passed through a purification material in the room is led to the terminal end of the drainage passage and is connected to a sewer or a river. Therefore, there is no interaction with the earth and sand on the ground, and the function of decomposing organic substances in wastewater by microorganisms such as bacteria in the ground cannot be expected. And other various problems.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and a water supply port and a water discharge port are provided in a box-shaped main body to be buried underground, and the inside of the main body is provided. A flow path from the water supply port to the discharge port is formed by a plurality of partitions, and the flow path is filled with earth and sand and a wastewater treatment body is provided to remove organic matter and dirty water in the wastewater, thereby purifying the wastewater. An object of the present invention is to provide a wastewater treatment apparatus capable of preventing water pollution by flowing water from a terminal end portion and activating underground by the action of microorganisms.

[0006]

Means of the present invention for achieving the above-mentioned object is to open the top and bottom portions thereof,
A box-shaped main body buried in the ground with a hollow inside, a water supply port and a drain port provided on one side wall and the other side wall of the main body, and a series of meandering flows from the water supply port to the drain port. Configuration of a wastewater treatment apparatus including: a plurality of partitions attached to a main body such that a passage is formed; earth and sand filled in the passage; and a wastewater treatment body provided in the middle of the passage. It is in.

[0007] Further, a plant may be provided in the subject.

[0008]

The present invention configured as described above has the following effects.

[0009] When the wastewater is supplied to the water supply port of the subject,
The wastewater flows into the sediment filled in the flow path in the main body,
The flow path formed in a meandering shape by the partition body moves toward the drain port.

[0010] During this time, the foreign substances in the wastewater are decomposed by contacting with microorganisms in the ground while sinking downward, and organic substances are gradually removed.

Further, waste water such as oil and detergent in the waste water is purified by a waste water treatment body provided in the middle of the flow path, and a part of the purified water is ground through an opening at a lower portion of the main body. The water is permeated into the ground and supplied as nutrients to the ground, and the remaining purified water is discharged from a drain outlet to, for example, a sewer or a river.

Therefore, the sewer and river are not polluted by the drainage, and the water environment is preserved.

By providing plants in the main body, the purification of the wastewater is further promoted by absorbing nitrogen and phosphorus in the wastewater.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a wastewater treatment apparatus according to the present invention will be described with reference to the drawings.

In FIG. 1 to FIG. 3, reference symbol A denotes a wastewater treatment apparatus for purifying household wastewater discharged from general households and the like, which comprises a main body 1, a water supply port 2 and a drainage port 3.
, A partition body 4, earth and sand 5, and a wastewater treatment body 6.

The above-mentioned main body 1 is formed into a rectangular box shape by concrete or the like, and substantially the entire upper and lower portions thereof are opened, and the interior is formed as a cavity. As shown, it is buried underground b, and a part of the upper part may be protruded and provided.

Incidentally, the opening of the bottom of the main body 1 may be appropriately adjusted.
A perforated plate made of concrete or the like is attached, and the wall of the main body 1 can be formed of permeable concrete.

The above-mentioned water supply port 2 and drainage port 3 are provided on one side wall and the other side wall of the main body 1.
For example, a drain pipe 7 for domestic wastewater is connected, and a drain pipe 3 discharges water close to purified fresh water, and a drain pipe 8 connected to a sewer or a river is connected. A drainage tub 9 having a predetermined capacity may be provided midway between the drainage pipe 7 and the drainage pipe 8.

The above-mentioned partitioning body 4 is attached so that a series of meandering flow paths 10 are formed from the water supply port 2 to the drainage port 3 in the main body 1. The plurality is alternately protruded inward so that a long moving amount of wastewater from the water supply port 2 can be obtained.

The number of the partition members 4 can be arbitrarily increased or decreased in view of the size of the main body 1 or the formation of the flow path 10, and the height is the same as the depth of the main body 1. Either the size or halfway.

The above-mentioned earth and sand 5 is filled in the entire flow path 10 of the main body 1 and is made of clay, sand, carbonaceous material or
Those having a soil structure in which humus and the like are mixed and having a soil buffering action and a detoxifying action are preferable, and those having a certain water permeability are used.

Accordingly, soil microorganisms are present in the soil 5 in a well-balanced manner, and the organic matter in the wastewater is decomposed and removed by decomposing and biosynthesizing the organic matter.
It is supplied to the ground in an effective state to fertilize the soil in the vicinity of the main body 1, and is replaced with new earth and sand 5 when the above-mentioned action is reduced.

The wastewater treatment body 6 is provided in the middle of the flow path 10 in the main body 1 to remove oil, detergent, etc. in the wastewater. An oily neutralizing agent, activated carbon, sand, gravel or woody material is used. Filters such as fibers are appropriately formed in multiple layers, and those with reduced removal ability are removed and replaced with new ones.

The wastewater treatment body 6 may be located at any position in the main body 1, but it is preferable to provide the wastewater treatment body on the upstream side in terms of removal efficiency.
There are cases where the main body 1 is provided at about half the depth.

In FIGS. 2 and 3, reference numeral 11 denotes a detection tank provided at the end of the flow path 10 in the main body 1 for detecting the degree of purification of fresh water purified in the flow path 10 based on a constant water quality standard. The presence or absence is determined by a conventional method such as a physicochemical or biological test.

In the figure, reference numeral 12 denotes a plant cultivated using the earth and sand 5, and in the case shown in FIG.
Planted in a part or the whole of the right place, and as shown in FIG. 5,
It is placed on a part or the whole of the right place on the earth and sand 5, and in the case of the placement type, the bottom water from the earth and sand 5 is supplied by placing the pot bottom with the plant 12 on the earth and sand 5. This is performed, and the purification effect and environmental beautification are improved by absorbing nitrogen and phosphorus in the wastewater.

The plant 12 can be formed such that the above-mentioned partitioning body 4 is formed in a gutter shape and buried and placed in earth and sand or water filled therein. Is preferably an aqueous plant.

Further, the plant 12 can be planted also on the outer periphery of the main body 1, and since the water that has flowed out from the bottom of the main body 1 oozes around the main body 1, this water can be effectively absorbed. Can be raised.

A lid (not shown) made of concrete or the like may be attached to the upper opening of the main body 1.

Next, the operation of the example in which the above-described apparatus A of the present invention is used for purifying household wastewater will be described.

The main body 1 is buried in the ground, the upper opening thereof is directed upward, and the main body 1 is stabilized in the ground at a position substantially the same as or slightly protruding from the ground surface.

Then, a drain pipe 7 from which miscellaneous drainage flows out is connected to the water supply port 2 of the main body 1, and a drain pipe 8 connected to a sewer or a river is connected to the drain port 3.

The earth and sand 5 and the wastewater treatment body 6 are filled into the flow path 10 of the main body 1, and the underground and the filled earth and sand 5 are communicated with each other at the lower part of the main body 1. When 12 is placed, it is ready for wastewater treatment.

In this state, when the miscellaneous wastewater discharged from the home is discharged from the drain pipe 7, the wastewater flows into the sediment 5 filled in the flow passage 10 in the main body 1 from the water supply port 2, The flow path 10 is moved in a meandering manner along the partition body 4 provided in the first position.

At this time, organic matter and foreign matter in the wastewater are transferred to the flow path.
While sinking downward at 10, it is decomposed by contacting microorganisms in the ground, and its buffering and detoxifying effects gradually remove organic matter in wastewater.

On the other hand, sewage such as oil and detergent in the wastewater is purified by passing through a wastewater treatment body 6 provided in the middle of the flow path 10. A part of the purified water close to the fresh water permeates from the earth and sand 5 into the ground at the lower opening of the main body 1.

Further, the organic matter which is purified by underground microorganisms and the like and decomposed by the earth and sand 5 becomes nutrient and a part of the organic matter penetrates into the ground.

Further, the purified water that cannot be completely penetrated into the ground is discharged from the drain port 3 of the main body 1 through the drain pipe 8, through the water collecting basin 9, and into, for example, a sewer or a river.

The water collecting basin 9 may be provided in the middle of the drain pipe 7. In this case, if a waste water treatment body 6 such as a filter is provided inside, the removal of oil and the like in the main body 1 is performed.・ Disassembly may not be necessary.

As shown in FIGS. 4 and 5, the plants 12 provided on the earth and sand 5 in the main body 1 grow by absorbing the moisture of the wastewater which has flowed through the earth and sand 5 and soaked. Since harmful substances such as nitrogen and phosphorus are removed from the wastewater, the purification of the wastewater is further promoted.

In this apparatus A, the purified water flowing out from the bottom of the main body 1 penetrates into the ground, so that natural purification is performed again by the earth and sand in the ground, and the wastewater close to the fresh water is discharged at the end. Since the water is poured into rivers, etc., pollution due to water pollution can be suppressed as much as possible.

[0042]

According to the present invention constructed as described above, the wastewater flows through the earth and sand filled in the flow path in the main body, so that organic matter and dirty water in the wastewater are removed and purified. Water can be made to flow from the terminal end to the outside to prevent pollution of the water environment.

In addition, organic matter having a high nutrient value in the wastewater can be supplied to the ground through earth and sand in the flow path, and the organic matter is activated in the ground around the apparatus by the action of microorganisms in the ground. be able to.

In particular, since this device can be formed compactly and does not require much space for installation, it can be provided on the way to a drain even in a general household.

By providing plants in the main body, it is possible to absorb nitrogen, phosphorus and the like in the wastewater to further promote the purification of the wastewater and to improve the external appearance, thereby contributing to environmental beautification. And the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a wastewater treatment apparatus according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a vertical sectional front view in FIG.

FIG. 4 is a cross-sectional view of a main part of the wastewater treatment apparatus in FIG. 1 in a state where plants are planted in earth and sand.

FIG. 5 is a cross-sectional view of a main part of the wastewater treatment apparatus in FIG. 1, showing potted flowers placed on earth and sand.

[Explanation of Signs] 1 Main body 2 Water supply port 3 Drain port 4 Partition body 5 Earth and sand 6 Drainage treatment body 10 Channel

Claims (2)

(57) [Claims] 1. A box-shaped main body buried in the ground with its upper and lower parts opened and the inside formed in a cavity, a water supply port and a drain port provided on one side wall and the other side wall of the main body, A plurality of partitions attached to the main body such that a series of meandering flow paths are formed from the mouth to the drain port, earth and sand filled in the flow path, and wastewater provided in the middle of the flow path A wastewater treatment device comprising a treatment body. 2. The wastewater treatment apparatus according to claim 1, wherein a plant is provided in the main body.