JPH0783874B2 - Sewage purification equipment in rivers - Google Patents

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention provides a purification channel connected to a river, a drainage channel, or a pond or a lake to purify wastewater flowing through these channels over a long period of time. The present invention relates to a sewage purification device in a river or the like that can be frequently performed.

[0002]

2. Description of the Related Art In recent years, there has been great interest in purifying wastewater in rivers as part of environmental maintenance, and various devices for purifying wastewater have been proposed. In particular, the method of purifying sewage with a biofilm attached to the purification treatment material that enables the inhabitation of microorganisms that contribute to the purification of sewage is in the limelight, and some types of equipment are practically used. Have been served. One of the basic configurations common to these is that "the river bed of the river is formed flat and a treatment layer composed of a collection of purification treatment materials is installed so that its lower surface is in contact with the river bed. "Met.

[0003]

However, in the conventional apparatus adopting the structure in which the treatment layer is directly placed on the flat river bed, there is only a problem that the river cannot be purified efficiently. However, it requires a lot of labor for the maintenance and management, and the cost required for it is also considerable.

In detail than [0004], these devices, there was intended to purify St. wastewater by cleaning action of microorganisms that live in the surface portion of the purification treatment material, treatment
Since the bed was placed directly on the flat river bed, sludge that was trapped and settled in the bed was deposited sequentially on the bottom of the bed, and the whole bed was within a short period of time. There was a problem causing clogging. The surface of the clogged treatment layer is covered with sludge .
Therefore , the sewage can no longer pass through the treatment layer, thus causing the situation where stagnant water in the treatment layer is decomposed to generate a foul odor, and the clogged treatment layer causes harmful insects such as bow hula. It becomes a source of proliferation and deteriorates the surrounding environment, and it goes against the original purpose of the device.

When the treatment layer is clogged in this way, the above problems can be solved by replacing or washing the treatment layer, but it is provided for the purpose of purifying river sewage. Since this kind of equipment is wide and has a large scale of several tens of meters, it is inevitable that the replacement work and cleaning work of the treatment layer will be very large-scale.
Therefore, the work requires a lot of labor and the maintenance and
There is a problem that the administration cost is very high. For this reason, the work of exchanging the treatment layer and the cleaning are left unintentionally, and eventually the above-mentioned various problems are caused and the original purpose of the apparatus cannot be achieved.

An object of the present invention is to provide a sewage purification apparatus for a river or the like, which solves the above conventional problems and can efficiently purify sewage in a river or the like for a long period of time.

[0007]

[MEANS FOR SOLVING THE PROBLEMS] One of sewage purification devices (hereinafter referred to as devices) 1 in a river or the like according to the present invention is sewage treatment.
Purification treatment material that enables the inhabitation of microorganisms that contribute to biodiversity
The treatment layer 3 consisting of a set of
At the same time, the end of the treatment layer 3 communicates with the water channel.
In addition, a continuous water passage 4 with the bottom of the waterway as the bottom surface was installed.
The inside of the treatment layer 3 by the flowing water flowing through the water passage 4.
Sludge existing in the river is drawn into the water passage 4.
It is characterized by that.

In addition to the device according to the present invention, it is also suitable for purification of sewage.
A collection of purification treatment materials that make possible the habitation of microorganisms
The processed layer 3 consisting of
Let's set up from the upstream side of the waterway 2 to the downstream side
In addition, inside each treatment layer 3, the end communicates with the water channel and
Adjacent to each other by providing a continuous water passage 4 with the bottom of the passage as the bottom
The water passages are made to communicate with each other by the interrupted portion 13,
It exists inside the treatment layer 3 due to the flowing water flowing in the water channel 4.
Special feature is that sludge is drawn into the water passage 4.
It is a characteristic.

Purification of sewage in a river or the like means that sewage flowing in a waterway (a river, a drainage canal, or a purification canal connected to a pond or a lake) is purified.

[0010]

In the device 1 according to the present invention, however, the water channel 2
Since the water passage 4 is provided inside the treatment layer 3 installed in, the part of the sewage flowing in the water passage 2 smoothly flows through the water passage 4 without being blocked by the treatment layer 3. Therefore, the running water flowing through the water passage 4 draws out sludge existing in the inside of the treatment layer 3 such as sludge settled at the lower end side of the treatment layer 3 into the water passage 4 and drains it away.

From the above, the treatment layer 3 is unlikely to be clogged, so that the biofilm adhering to the purification treatment material exerts an efficient sewage purification action for a long period of time.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

1 or 2, the device 1 according to the present invention.
Enables habitation of microorganisms that contribute to purification of sewage in channel 2.
Install a treatment layer 3 consisting of a collection of purification treatment materials
In addition, the bottom 4 of the water channel 2 is placed inside the treatment layer 3 as a bottom surface.
The water passage 5 is provided. The processing layer 3
Enables the inhabitation of microorganisms that contribute to the purification of sewage
For example, spherical ceramics, crushed stone, activated carbon, etc.
The purification treatment material 6 consisting of is filled in a mesh container 7 such as a gabion.
It is composed of In the device 1 having such a configuration, the sludge in the treatment layer 3 is drawn out from the upper surface portion 9 and the side surface portion 10 of the water passage 5 by the flowing water flowing through the water passage 5 (the state is indicated by an arrow).

The device according to the present invention has the same structure as described above.
As shown in FIG. 3, the treatment layer 3 has a discontinuous portion 1 having a required width.
Installed from the upstream side of the waterway 2 to the downstream side with 1 interposed
Then, the bottom 4 of the water channel 2 is used as the bottom inside each treatment layer 3.
A water passage 5 may be provided, depending on the running water flowing through the water passage.
Sludge existing in the treatment layer 3 is drawn into the water passage.
To be done.

[0015]

In the apparatus according to the present invention, the treatment layer is installed at a required portion of the water channel, and the water passage is provided inside the treatment layer. Flows smoothly through the waterway without interruption.
Therefore, the running water flowing through the water passage draws out sludge existing in the inside of the treatment layer, such as sludge settled at the lower end side of the treatment layer, into the water passage and flows away.

From the above, the treatment layer is unlikely to be clogged, and therefore the biofilm adhering to the purification treatment material exhibits an efficient sewage purification action for a long period of time.

Therefore, unlike the conventional apparatus in which the treatment layer is directly placed on the flat bottom surface of the water channel, there is no fear that the whole treatment layer will be clogged within a short period of time due to the accumulation of sludge. Therefore, conventional problems such as causing a situation in which sewage is stagnant in the treatment layer to generate a bad odor, and the clogged treatment layer becoming a source of pest growth and deteriorating the surrounding environment are solved. Becomes In addition, replacement work of the clogged processing layer and cleaning work are not required for a long period of time, so labor can be saved and the maintenance and management costs of the device are greatly reduced. It can be done.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is a side view showing another embodiment of the present invention.

[Explanation of symbols]

 1 device 2 water channel 3 treatment layer 4 bottom 11 discontinuity

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Isamu Kusaka 2663, Oji-shi, Omiya, Saitama Prefecture (56) References JP-A-60-150891 (JP, A) JP-A-61-133196 (JP, A)

Claims (2)

[Claims] 1. A habitat of microorganisms that contributes to purification of sewage is possible.
The water layer 2 is formed by a treatment layer 3 made up of a collection of purification treatment materials
Installed in the required part of the inside of the processing layer 3
Is connected to the waterway at the end and with the bottom of the waterway as the bottom.
The continuous water passage 5 is provided, and the running water flowing through the water passage 5
Sludge existing in the treatment layer 3 is drawn into the water passage 5.
Contamination in rivers, etc. characterized by being released
Water purification device. 2. The habitation of microorganisms that contribute to the purification of sewage is possible.
A required treatment layer 3 consisting of a collection of purification treatment materials
From the upstream side of the waterway 2 through the gap portion 11 of the width.
Installed toward the flow side and inside each treatment layer 3
Is connected to the waterway at the end and with the bottom of the waterway as the bottom.
A continuous water passage 5 is provided, and the adjacent water passages are interrupted.
Flowing water flowing through the water passage 5 which is communicated with the portion 11.
The sludge existing inside the treatment layer 3 is removed from the inside of the water passage 5.
To rivers, etc. characterized by being pulled out to
Sewage purification device