JPS5839490B2 - How to treat rainwater, sewage or liquid fertilizer in soil - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention utilizes the siphonic properties of soil to diffuse rainwater, sewage, or liquid fertilizer into the soil, and perform water treatment in the soil, such as recharge of groundwater, purification of sewage, and fertilization of plant roots. This is related to the construction method.

In the past, rainwater permeated directly into the ground from the ground surface, and was purified by the absorption and digestion of organic matter by microorganisms in the soil, becoming groundwater.However, in recent years, the surface of the ground has been paved and houses have been constructed, which has inhibited the infiltration of rainwater. On the other hand, many places are experiencing groundwater shortages due to the extensive pumping.

It has become difficult to apply fertilizer to agricultural crops from above ground, mainly from the standpoint of pollution, and there is now a strong situation where we have no choice but to rely on liquid fertilizer application from underground.

In addition, the amount of domestic wastewater and industrial wastewater is increasing, and sewage treatment has become an urgent issue.

Of course, countermeasures have been taken to address these various phenomena, but to this day, problems remain, such as high costs or insufficient effectiveness.

An object of the present invention is to provide a simple and reliable method that can treat rainwater, sewage, and liquid fertilizer using the same structure.

Next, the present invention will be explained in detail based on the drawings.

As shown in FIG. 1, first, a trench 2 is excavated on the ground surface 1.

The width, depth, and length of the groove 20 are determined as necessary.

At the bottom of the groove 2, place the arc-shaped suffering 3 on your back.

Contact materials 4 such as stones, rubble, and plastic materials are piled up in a triangular shape with the curved part as the base, leaving the upper side of the stump 3, and the top is cut off, and a water pipe 5 is laid on top of the contact material 4.

Multiple water pipes 5 of appropriate lengths are connected together, but the way they are connected is a so-called baka-connection, and as shown in Figure 2, the joints are not sealed, so water and air can leak through these joints. It can also be leaked freely.

In order to make the water pipe leak free, it is possible to make the water pipe perforated, but it is known from experience that this method is prone to clogging, so in the present invention, we have developed a porous system that does not have the risk of clogging. A connecting method was adopted.

The starting end of the water pipe 5 is connected to a water storage source.

Next, the water pipe 5 and the contact body 4 are covered with a fine corrosion-resistant mesh 6, and the space between the mesh 6 and the inner wall of the groove 2 is filled with a water-absorbing material 7 that has a water siphon function and is pressure-resistant.

The lower part of the water-absorbing material 7 is based on the space between the upper side of the sink 3 and the lower part of the net 6.

The inside of the groove 2 above the water-absorbing material 7 is filled back with topsoil 8 having high air permeability.

Once the construction of the above structure is completed, rainwater, sewage, etc. will be collected from the water storage source.
Either liquid fertilizer is introduced into the water pipe 5.

The water introduced into the water pipe flows down at each joint of the pipe and comes into contact with the contact body 4, where the organic matter contained is digested by the microorganisms that adhere to the entire surface area of the stones, rubble, plastic materials, etc. that make up the contact body. At the same time, it is absorbed by the water-absorbing material 7 adjacent to the net 6, and further permeates into the soil on the sides and above.

The water that flows upward due to the siphon phenomenon of the soil reaches the roots of plants and cultivates them, and the water that flows downward reaches the groundwater vein and recharges clean groundwater.

When the soil humidity is sufficient and there is no need for plant cultivation or groundwater recharge, the introduction of water from the water storage source to the water pipe 5 is stopped, and when the soil is dry and requires water supply, the introduction of water is resumed. Water supply can be freely controlled by increasing or decreasing the amount of water introduced depending on the size of the need.

The same applies to liquid fertilizers, and fertilizer application can be controlled freely.

The feature of the present invention is that the waterway is divided into two levels, upper and lower.

The upper waterway, or water pipe 5, is for distributing water evenly to the required area, and the lower waterway, or water pipe 5, is for preventing water from gravitational infiltration and for distributing water evenly to the ends of the structure. This is to allow water or liquid fertilizer to be absorbed into the soil through the water absorbing material 7 that is in contact with the upper side.

In this way, the cooperation of the upper and lower waterways allows rainwater, sewage, and liquid fertilizer to completely permeate into the soil, and can be controlled freely.

Known techniques include perforated pipes (which correspond to the water pipes of the present invention) for conveying waste water and air (odor) into a predetermined area.

) is sandwiched between two layers of netting, and if necessary, debris or twigs are interposed between the two nettings to increase processing capacity. Most of the water infiltrates near the porous pipes by gravity and is not dispersed through the net.Since the bottom of the structure is not permeable, sewage tends to stagnate, which prevents clogging due to filth in the sewage. It has been empirically known that this can cause the device to become unusable.

The present invention eliminates the drawbacks of the above techniques.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of the present invention, and FIG. 2 is a front partial view.

Claims (1)

[Claims] 1. Place an arc-shaped pedestal on its back at the bottom of a trench dug on the ground surface, pile up contact objects such as stones, rubble, and plastic materials in a roughly triangular shape on top of the pedestal, and place a water pipe connected to the top of the pedestal. The starting end is connected to a water storage source, the water pipe and the contact body are covered with a fine corrosion-resistant net, both sides of the contact body are filled with pressure-resistant material having siphon performance, and the upper part is covered with highly permeable soil. A method for treating rainwater, sewage or liquid fertilizer in soil, which comprises introducing rainwater, sewage or liquid fertilizer into a structure covered with soil and treating it in the soil.