JPH07122246B2 - Rivers that can prevent pollution - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a river capable of preventing pollution by sewage.

[0002]

2. Description of the Related Art At present, as shown in FIG. 1, a sewer 2 is connected to a river 1 for drainage. The sewage discharged to the river 1 is treated by a sewage treatment device such as a factory, or the sewage discharged from the house 3 is collected in one place and treated to be discharged. However, all sewage is treated and not drained,
Sewage drained from the house 3 is directly drained to the river 1,
Alternatively, it is discharged from the factory to the river 1 without being treated. Therefore, the pollution of the river 1 is gradually becoming more serious, and clarification is desired.

[0003]

In order to prevent the pollution of the river, a sewer may be provided under the road and the sewage discharged to the river may be discharged to the sewer. This method is a very preferable method. Nevertheless, in practice, many regions do not use this method. That is because the cost of building sewers is significantly higher. For this reason, pollution of rivers is gradually progressing as the population density of towns increases or the sources of wastewater such as factories increase.

The present invention was developed for the purpose of solving this drawback. An important object of the present invention is to provide a river which can clean the river at a low construction cost and can prevent pollution.

[0005]

A river capable of preventing pollution according to the present invention has the following constitution in order to achieve the above-mentioned object. A side wall of the river is divided by a partition wall 4 to provide a sewer area 5. The sewer 2 is connected to the sewer region 5. Further, a sewage treatment device 6 is connected to the sewage region 5 at a predetermined interval. The water treated by the sewage treatment device 6 is separated from the river 1 and is made to flow downstream while being treated as sewage treatment, or the water treated by the sewage treatment device 6 is made to flow into the mainstream 7. Is configured to.

[0006]

In the river which can prevent pollution according to the present invention, the partition wall 4 is constructed on the side surface to provide the sewer area 5 which is partitioned from the main stream 7. The sewer 2 is connected to a sewer region 5 which is separated from the main stream 7 of the river 1. Further, a plurality of sewage treatment devices 6 are connected to the sewage region 5 at predetermined intervals in order to cleanly treat and discharge the sewage. The river of this structure does not drain the sewage of the sewer 2 to the main stream 7. The sewage of the sewage channel 2 is drained to the sewage region 5 separated from the main stream 7, where it is neatly treated and drained. It is extremely difficult to drain sewage into a river and cleanly drain the water from the river as in the past. This is because the amount of water is extremely large and a huge amount of treatment capacity is required. In the river of the present invention, dirty sewage flows in the sewage area 5 partitioned from the main stream, so the amount of water to be treated is significantly smaller than the amount of water in the river, and it is not necessary to increase the capacity of the sewage treatment device 6 so much. Furthermore, while the sewage is flowing downstream in the sewage region 5, it can be flowed downstream while being treated by a plurality of sewage treatment devices 6, so that it can be treated as clean water and drained from the downstream. In addition, if the amount of sewage discharged from a house increases in a specific area, a sewage treatment device will be installed in the vicinity of it, or the treatment capacity of a sewage treatment device installed in the vicinity will be increased to treat sewage cleanly. it can. Therefore, the river of the present invention can not only clean the mainstream water very cleanly but also clean the sewage water and drain the downstream.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify rivers for embodying the technical idea of the present invention, and the present invention is not limited to the following.

Further, in this specification, in order to facilitate understanding of the claims, the numbers corresponding to the members shown in the embodiments are referred to as "claims column", "action column", and "action column". It is added to the members shown in the section of "Means for Solving the Problems". However, the members shown in the claims are
It is by no means specific to the members of the examples.

The river shown in FIGS. 2 and 3 has a partition wall 4 which is divided into a sewer region 5 and a main stream 7. Sewage area 5
Are arranged on both sides of the river 1, and the main stream 7 is arranged between the sewage areas 5 on both sides. The partition wall 4 is constructed by, for example, constructing a vertical wall made of concrete, or by fixing an iron plate vertically and connecting the boundaries by a method such as welding, or by connecting metal sheet piles. The partition wall 4 is constructed by embedding the lower part in the bottom of the river and fixing it so that the partition wall 4 does not fall under the water pressure of the main stream 7. The ratio between the mainstream 7 and the sewage region 5 is designed to be an optimum value in consideration of the mainstream and the amount of sewage. Most rivers have significantly more mainstream water than sewage. Therefore, the partition wall 4 is constructed at the bottom of the river so that the width of the sewage area 5 is narrower than the width of the main stream 7.

Sewage region 5 separated from mainstream 7 by bulkhead 4.
Connects the sewer 2 to allow sewage to flow into it. The sewer 2 is provided so as to open on the side surface of the partition wall 4. Therefore, when the partition wall 4 is constructed in the river 1, the sewer 2 is connected to the sewer area 5. Therefore, the river of the present invention can connect the sewer 2 to the sewer region 5 without changing the sewer 2. As shown in FIG. 2, in a river in which the sewage area 5 is arranged on both sides of the main stream 7, the sewage channel 2 which is connected on both sides can be connected to the sewage area 5. For a river in which the sewer is connected only to one side of the river, the sewer can be connected by disposing the sewer region on one side of the main stream. The sewer that opens upward can be closed by covering the opening. The covered sewer can prevent the malodor from leaking to the outside when flowing the malodorous sewage.

The sewage region 5 separated from the main stream 7 is connected to a sewage treatment device 6 at predetermined intervals in order to clean the sewage flowing into the sewage region 5. The sewage treatment device 6 pumps up the water in the sewage region 5 to treat it neatly, or allows it to naturally flow into it for treatment. As shown in FIG. 2, the sewage treatment device 6 branches a part of the water in the sewage region 5, or, although not shown, all the sewage in the sewage region 5 flows in and cleans the wastewater.

The sewage treatment device 6 treats sewage by a method that has been already used in the past or a method that will be developed. For example, the sewage treatment apparatus 6 cleans the sewage by removing coarse suspended matter by a method such as screen sedimentation and then filtering with water spray. Screen sedimentation removes coarse suspended matter by filtering with a screen, and slows down the flow velocity to precipitate heavy matters such as gravels. The water filtered by the screen sedimentation is further treated by sprinkling filtration. In the sprinkling filtration, water is sprinkled on the surface of the filter medium and the microorganisms inhabiting the filter medium oxidize the water. As an alternative to sprinkling filtration, the water can be treated by a fixed method. The water that has been neatly treated by the sewage treatment device 6 again flows into the sewage region 5 and flows downstream. Since the sewage treatment equipment 6 is connected to the sewage treatment area 5 at regular intervals, the sewage flowing downstream in the sewage treatment area 5 is cleanly treated by the plurality of sewage treatment equipment 6 and along the main stream 7 of the river. Flowing. For this reason, the water flowing through the sewage region 5 is gradually and cleanly treated and then discharged downstream. As shown in FIG. 3, the rainwater flowing into the river flows into the mainstream 7 of the river via the rainwater channel 8.

Further, in the river of the present invention, as shown in FIG. 4, water purified by the sewage treatment device 6 can be made to flow into the main stream 7 instead of the sewage region 5.
In the river shown in this figure, the discharge side of a part of the sewage treatment equipment 6 is the main stream 7, and the discharge side of the remaining sewage treatment equipment 6 is the sewage area 5.
Connected to. The sewage treatment device 6, which connects the discharge side to the mainstream 7, completely treats the sewage to make it into a clean tail and then flows it into the mainstream 7. Sewage treatment device 6 connecting the discharge side to the sewage area 5
Does not need to completely treat sewage. This is because it can be further processed and discharged by a sewage treatment device connected downstream.

Further, in the sewage treatment apparatus, the discharge side can be connected to both the main stream 7 and the sewage region 5 via the switching valve 9. When the sewage treatment device 6 can cleanly treat and discharge the sewage, the treated sewage flows into the main stream 7,
When the amount of sewage increases and the sewage treatment device 6 cannot completely treat the sewage, the switching valve 9 is switched to allow the treated water to flow into the sewage region 5. The switching valve 9 is switched by the amount of sewage that flows in or discharged, or is switched by detecting the extent to which sewage can be treated. To switch the switching valve 9 by the amount of sewage, the discharge side of the sewage treatment device 6 is connected to the sewage region 5 when the sewage amount is large, and the discharge side is connected to the main stream 7 when the sewage amount is small. Also, to the extent that sewage can be treated, such as BO
When switching the switching valve 9 by detecting D or COD,
When the discharge side of the sewage treatment device 6 cannot be sufficiently treated in the mainstream 7 while the sewage can be treated cleanly, the sewage area 5
Connect to.

[0015]

The river of the present invention has a low construction cost,
It has the feature that it can be treated as wastewater to be an ideal state and clean water can be obtained. It divides the river of the present invention into a main stream and a sewage area with a partition wall, connects the sewer to the sewage area, prevents the sewage from contaminating the main stream, and further separates the sewage from the main stream of the river. This is because a plurality of sewage treatment devices are connected to the region at a predetermined interval so that the sewage can be drained cleanly and flowed downstream.

The sewage flowing into the sewage area separated from the main stream does not pollute the water flowing in the main stream of the river. This is because untreated sewage is not allowed to flow into the mainstream. Therefore, the water in the river is kept in a very clean state. further,
The river of the present invention has a feature that the sewage that flows into the sewage region divided from the main stream can be cleaned efficiently. that is,
Because untreated sewage is not mixed with river water, the sewage treatment device can treat a small amount of water to make it clean. If untreated sewage is introduced into the river, it will be extremely difficult to clean the drainage of the river. This is because the sewage is diluted with the river water and the water volume increases significantly. The river of the present invention does not mix untreated sewage with mainstream water. Therefore, the sewage treatment apparatus may clean the wastewater by treating the small amount of water that is incomparable with the water quantity of the river regardless of the water quantity of the river. Therefore, there is a feature that sewage water can be cleaned by using a sewage treatment device having a small treatment capacity.

Furthermore, since the river of the present invention connects a plurality of sewage treatment devices at predetermined intervals, if the water in the sewage area is partially contaminated, the treatment capacity of the sewage treatment devices in the vicinity thereof will be increased. It has a feature that can be beautiful. Therefore, after construction, even if the number of houses is increased in a specific area or a factory is formed and the sewage in the vicinity is contaminated, it is not necessary to refurbish the entire facility. There is a feature that sewage can be cleaned by increasing the capacity of a specific sewage treatment device connected to a sewage area where dirty sewage is discharged or by adding a new sewage treatment device. Therefore, there is a feature that the river water can be always cleaned with the minimum capital investment.

Furthermore, the river of the present invention has a feature that the construction cost for cleaning water can be significantly reduced. This is because it is not necessary to construct a sewer system which requires a very high construction cost, and a partition wall can be constructed along the river to separate the main stream from the sewer area. Furthermore, since the river of the present invention is constructed by constructing a partition wall and dividing the river into a main stream and a sewer area, it is possible to leave the sewer that was conventionally connected to the river as it is, and to reduce the construction cost. effective.
When constructing a new sewer, it is necessary to modify the sewer that was connected to the river from the river to the sewer. This construction also costs a considerable amount of money. However, the river of the present invention is
It separates the river from the mainstream and builds a sewer area on its side, eliminating the need to modify conventional sewers. This synergizes with the cost of building the partition wall to be lower than that of the sewer system, and significantly reduces the overall construction cost. That is, the river of the present invention realizes a truly ideal feature that the construction cost can be significantly reduced and the water of the river can be cleaned.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a conventional river.

FIG. 2 is a plan view showing an example of the river of the present invention.

FIG. 3 is a sectional view of the river shown in FIG.

FIG. 4 is a plan view of a river showing another embodiment of the present invention.

[Explanation of symbols]

 1 ... River 2 ... Sewerage 3 ... House 4 ... Bulkhead 5 ... Sewerage area 6 ... Sewage treatment equipment 7 ... Main stream 8 ... Rainwater passage 9 ... Switching valve

Claims (2)

[Claims] 1. A river is divided by a partition wall (4) and divided into a sewage region (5) and a main stream (7) on the side of the river, and a sewer (2) is provided in this sewage region (5). Further, a sewage treatment device (6) is connected to the sewage region (5) at a predetermined interval, and the water treated by the sewage treatment device (6) is separated from the river for treatment. However, it is a river that can prevent pollution because it is designed to flow downstream. 2. A river is divided by a partition wall (4) and divided into a sewage region (5) and a main stream (7) on the side of the river, and a sewer (2) is provided in this sewage region (5). Further, a sewage treatment device (6) is connected to the sewage region (5) at predetermined intervals, and the water treated by the sewage treatment device (6) flows into the main stream (7). A river that is configured to prevent pollution.