JPS60132696A - Sewage purification filter bed utilizing kokaseki rock lump - Google Patents

Abstract

PURPOSE:To effectively purify sewage, by combining a water sprinkling filter bed and a water immersion filter bed both of which utilize KOKASEKI-rock lumps as a filter material in a stage connected in series and supplying warm air to said filter material to activate the action of the microorganism adhered to the filter material. CONSTITUTION:The titled filter bed is constituted of a water sprinkling filter bed 1 and a water immersion filter bed 2 utilizing KOKASEKI-rock lumps connected in series. The water sprinkling filter bed 1 is constituted by providing a net body 5 to the lower part thereof under tension while packing the interior thereof with KOKASEKI- rock lumps 6 and sewage is sprinkled to said filter bed 1 from a water sprinkler 4 above said filter bed 1 while warm air heated by a heater 3 is upwardly supplied to KOKASEKI-rock lumps 6 from an air passing pipe 7 provided to the bottom part of said filter bed 1. The water immersion filter bed 2 is constituted by arranging a plurality of net cages 8 receiving KOKASEKI-rock lumps 6 in parallel in a horizontal direction in a state immersed in water so as to change the same in an up-and-down direction by appropriately getting in and out the same by guides 9 and warm air heated by a heater is supplied to KOKASEKI-rock lumps 6 and water from the air diffusion pipe 10 provided to the bottom part of said filter bed 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention combines a spreading P bed using anti-flinder rock and a flooded P bed in series. The floor was filled with water and sewage was sprinkled from the top, and the floor was covered with multiple fine blocks containing all blocks of anti-fire stone arranged in a flooded pattern.
The above-mentioned spreading P floor and flooded F floor are sewage purification F floors using anti-flinder stones, which are characterized by being able to supply all warm air from the bottom.

Conventionally, in sewage treatment, various purification treatments have been carried out by filtration or contact oxidation using mineral agglomerates, including anti-flint rock, as an F material. and the flooded P floor are connected in series and combined,
Moreover, no attempt has been made to effectively purify wastewater by supplying warm air to these P materials and activating the activity of microorganisms attached to the P materials.

Fig. 1 is a block diagram of the present invention, which consists of a spreading P bed (1) and a flooded R bed (2) connected in series using anti-flinder stones.

Sewage is sprinkled from the top of the distribution F floor (1), and the wastewater that falls from the bottom is introduced into the flooded F floor (2). Heaters are installed at the bottoms of the distribution F floor (1) and flooded P floor (2). (3) Supply warm air that has been appropriately heated. That is, as shown in Fig. 2, the spray P bed (1) has a net (5) stretched at the bottom, the inside is completely filled with anti-flinder block (6), and water is poured from the sprinkler (4) on the top. While dispersing the waste water, warm air heated by the heater (3) is supplied upward from the ventilation pipe (7) provided at the bottom to the anti-flinder block 6).

The flooded ft floor (2) is moved in and out of the vertical direction 2 by moving a plurality of fine brushes (8) containing anti-fire stone blocks (6) in and out according to the guide (9) as appropriate.
Warm air warmed by the heater (3) is supplied to the anti-flinder block (6) and the water from the diffuser pipe αO, which is arranged horizontally in parallel so that it can be changed horizontally and submerged in water. do.

The wastewater sprayed by the water sprinkler (4) is transferred to the spray floor (1).
It hangs on the anti-fire stone block (6) inside, and descends all the way through it while contacting the anti-fire stone block (6), and passes through the net (5) completely and enters the flooded F floor (2). , flows through the gaps while contacting the anti-flinder blocks (6) within the plurality of fine strokes (8).

As is well known, anti-firestone is an ore whose main components are silicon oxide and aluminum oxide.It has a rough surface, contains countless air bubbles, and is lightweight with a specific gravity of about 0.6 to 1.5. In addition to having efficient filtration ability, it also has characteristics 2 that are optimal for the growth and habitat of microorganisms. Therefore, microorganisms that breed in wastewater are
It lives and acts on the rough surface of the anti-firestone block (6), and the organic matter contained in the wastewater is completely decomposed by catalytic oxidation, and is purified by the filtration effect of the rough surface of the anti-firestone block (6). Furthermore, algae that proliferate significantly on the surface of the anti-firestone block (6) due to the irradiation of sunlight act on it, and inorganic substances such as nitrogen and phosphorus are also absorbed.

However, the spread floor and the flooded F bed have the disadvantage that microorganisms become very inactive in cold weather, and the spread P floor in particular has high air permeability, which increases this phenomenon. The water temperature on the floor drops further. The present invention provides a means of eliminating this drawback by supplying warm air into the bed (2) with sprinkler P bed (1) and flood water. In other words, by supplying warm air, the air and water temperatures within both floors (1) and 42) are maintained within a range of 15 to 25 degrees Celsius, and oxygen is supplied to encourage microbial activity, even when the temperature drops during winter and at night. It maintains the efficient purification effect of microorganisms and plants. In addition, due to an increase in the amount of warm air supplied,
It is possible to improve the BOD load on the anti-flame block. Furthermore, the flooded P floor (2) is divided by a guide (9) into which a plurality of fine lines (8) that do not collapse in shape and contain anti-fire stone blocks (6) are arranged horizontally in rows to form a flooded P floor (2). By placing the flint rock M (6) in and out, it is not only easy to get it in and out, but also the separate passage (8) can be changed upward and downward as needed. It has two advantages: it promotes the exchange of anaerobic microorganisms living in anti-flinder blocks near the bottom of the water, and improves the purification effect. According to the inventor's experiments, results were obtained in which more than 90% of BOD, COD, SS, nitrogen, and phosphorus could be removed.

As described above, the present invention can improve the purification effect regardless of whether the components contained in wastewater are organic or inorganic.
It is most suitable for flooring, particularly low concentration fish farming water, tertiary sewage treatment, etc.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of the present invention. Fig. 2 is a cross-sectional view of an embodiment of the dispersion F bed, which is the main component of the present invention. Fig. 3 is the structure of the present invention a:
FIG. 2 is a cross-sectional view of an embodiment of a flooded F floor, which is a main part. In the figure, (1) is the spray F floor, (2) is the flooded R floor, (3) is the heater, (4) is the water sprinkler, (5) is the mesh, (6) is the anti-large stone block, ( 7) indicates the ventilation pipe, (8) indicates the fine line, (9) indicates the guide, and 0O indicates the diffuser pipe. patent applicant

Claims (1)

[Claims] A spreading P bed that has a net at the bottom and is filled with P material, and then sprays all the sewage from the top. In an organic sewage treatment device in which a flooded P bed filled with t-4i is combined in series, the spreading R bed is filled with anti-flinder blocks as iF IJ, and the flooded F bed is filled with anti-flinder blocks. A plurality of fine brushes containing a plurality of pens are placed in parallel horizontally in a flooded manner so that they can be moved in and out as needed to change the vertical direction, and the spray P floor and flooded P floor are
Sewage purification floor F using anti-flammable stones is characterized by being able to supply warm air from the bottom.