JPS63327Y2 - - Google Patents

Description

[Detailed description of the invention] This invention purifies contaminated water such as kitchens, laundry, baths, toilets, industrial wastewater, rivers, and seawater, so that it can be discharged as non-polluting or reused where necessary. The purpose of this system is to purify wastewater extremely simply and efficiently, and in particular to prevent drainage ports from becoming clogged with sediment in a short period of time, so that they can be used effectively for a long time without clogging. On the inner bottom surface of the treatment tank 1 with the drain port 2 opened at the bottom, a long water guide case 3 with one end communicating directly with the drain port 2 and having a chevron-shaped cross section and a large number of water passage holes 4 along the lower edges on both sides is installed. installed, and sand 5 and porous material 6 are placed on top of it.
The overlayer 7 is formed by providing a plurality of layers alternately, and the end of the overlayer 7 is formed into a downwardly sloping slope 7a on the side opposite to the drainage port 2, and a sewage supply port 8 is provided on the upper surface of the overlayer 7. It is made by opening.

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

In the drawings, reference numeral 1 denotes a treatment tank of appropriate depth, and an outlet 2 for water purified in the tank is provided at the lower side of the tank.

A water guide casing 3 of an appropriate length having a semicircular cross section and a large number of water passage holes 4 along both lower edges was installed on the inner bottom surface of the tank 1, and one end of the casing 3 was connected directly to the drain port 2.
In the illustrated example, the water guide case 3 is shown to have a semicircular cross section, but the present invention is not limited to this. For example, as shown in FIG. That's fine.

Sand 5 and porous material 6 are alternately superposed vertically in a plurality of stages to form an overlayer 7 of an appropriate thickness on the upper surface of the water guide case 3 installed on the bottom surface. As the porous material 6, it is preferable to use a material such as a nylon fiber net that will not be corroded by the wastewater to be treated, and the pore size should be selected appropriately, and if necessary, the pore size may be increased sequentially from the upper Sometimes smaller ones are used.

Furthermore, the particles of the sand 5 are appropriate, and the sand may also have smaller particles starting from the upper layer, and an appropriate amount of a medicinal agent to promote purification may be mixed into the sand layer. The overlayer 7 formed as described above formed a downwardly sloped slope 7a at the end opposite to the discharge port 2. Reference numeral 8 denotes a supply port for wastewater to be treated. As shown in the figure, it is advantageous for the supply port 8 to be located on the side opposite to the slope 7a of the overlayer 7 in order for the wastewater to permeate into the overlayer 7 on the average. However, the opening may be located at any other suitable location.

When a medicinal agent is mixed into the overlayer 7 as described above, if the medicinal agent abhors light and the light causes harmful growth of microorganisms, a light-shielding lid 9 should be provided at the opening of the tank 1. Is required.

In the above configuration, if an appropriate amount of sewage is supplied from the supply port 8 to the upper surface of the overlayer 7, the sewage will infiltrate downward through the overlayer 7 made of the porous material 6 and sand 5,
Or a part of it leaks onto the slope 8 and flows to the lower layer,
During this time, impurities contained in the water are removed and purified, and if pharmaceutical agents are mixed in, the purified water is purified and neutralized by chemical action at the bottom of the tank. Water flows into the water guide casing 3 through the water holes 4 provided on the lower edges of both sides, and is taken out through the drain port 2. The water that has become pollution-free through purification can be disposed of, or used for flushing toilets if necessary, or the purified water can be used in fish ponds and the like for breeding fish and the like.

Incidentally, when excessive impurities accumulate in the tank due to long-term use, the sand 5, porous material 6, and water guide casing 3 are taken out of the tank, cleaned and reused.

According to the present invention, the sand 5 and the porous material 6 are arranged alternately to form a stepwise overlayer 7.
The overaction of the sand 5 and the porous material 6 increases the overeffect, and the porous material 6 controls the flow of the sand 5 to prevent the gradual arrangement relationship from collapsing. Since the slope 7a has a downward slope, the water that has permeated into the overlayer 7 also seeps out from the slope 7a and flows downward, so the drainage inside the overlayer 7 is good and the overflow efficiency is further improved. Since the water guide case 3 is installed in the water guide case 3, the water that has been purified by overaction and reaches the lower part flows into the water guide case 3 from the lower water passage hole 4 of the water guide case 3, and then flows through the water guide case 3 and is drained. The sewage flowing out from the opening 2 and thus supplied to the upper surface of the overlayer 7 permeates toward each water passage hole 4 provided in the water guide case 3, so that the sewage permeates over the entire surface of the overlayer 7 with a substantially uniform distribution. If the water guide casing 3 is not provided, the sewage supplied to the upper surface of the overlayer 7 will flow all at once toward the drain port 2, resulting in uneven flow distribution of the sewage within the overlayer 7 and drainage. Although there is the inconvenience that the mouth 2 is blocked by foreign objects in a short period of time,
By installing the water guide case 3, such defects can be eliminated, and the purifying device has a simple structure and is easy to handle.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a cutaway side view, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG.
FIG. 3 is a cutaway sectional view showing another embodiment of the water guide case. 1... Treatment tank, 2... Drain port, 3... Water guide case, 4... Water hole, 5... Sand, 6... Porous material, 7... Overlayer, 7a...
Slope, 8... Sewage supply port.

Claims (1)

[Scope of utility model registration request] A long water guide case 3 is installed on the inner bottom surface of the treatment tank 1 which has a drain port 2 opened at the bottom, and has one end communicating directly with the drain port 2 and has a chevron-shaped cross section and a large number of water passage holes 4 along the lower edges on both sides. , a plurality of layers of sand 5 and porous material 6 are alternately provided on the upper surface to form an overlayer 7, and a drainage port 2 is formed.
The sewage purification device is constructed by forming the end of the overlayer 7 on the opposite side to a downwardly sloping slope 7a, and opening a sewage supply port 8 on the upper surface of the overlayer 7.