JP4097120B2 - Water purification method using artificial floating island and water purification device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a water purification method using an artificial floating island and a water purification device for the same, and an artificial floating island is levitated and installed in a closed water area to purify surface water, and the water quality in the water area is aerobic by a circulating flow to improve purification efficiency. The purpose is to increase.
[0002]
[Prior art]
In general, closed water areas such as park ponds, reservoir ponds, swamps, moats, etc. in the living environment also become eutrophic due to the inflow of domestic wastewater, resulting in deterioration of water quality, the generation of malodors, sea lions, and lack of oxygen. This is the cause of the rise of fish. As a method for improving the deteriorated water quality, it is known to use a machine or to spray chemicals.
By the way, recent research has revealed that about 15 cm of surface water is a portion that generates apparent sewage. It is also known that there is a variation in oxygen between the water bottom and the surface of a pond or the like.
[0003]
[Problems to be solved by the invention]
However, the work of dredging with a machine is costly, and if the scaffolding at the shore of a pond or moat is bad or the place is small, the work may not be as expected. Moreover, although water purification with chemicals is simple, it is not always preferable from the viewpoint of environmental conservation.
[0004]
[Means for Solving the Problems]
The present invention is provided to solve the above problems.
The first of the present invention is a water purification method using an artificial floating island, wherein the floating island main body frame is floated on the water surface via a float housed in a float chamber integrally formed on both sides thereof , and the submersible pump mounted in the pump storage chamber of the floating island body frame continuously circulating flow by sucking the surface water from the water discharge nozzle communicating thereto and drainage toward the water surface by circulating water flow is Ri input from the slit-like filter chamber floating island body frame, the central portion of the elongated island body frame The water enters the submersible pump chamber through the contact oxidation chamber provided in , and discharges water from the water discharge nozzle toward the water surface to plant aquatic plants on the plane of the floating island body frame .
[0005]
According to a second aspect of the present invention, in the water purification apparatus using an artificial floating island, a contact oxidation chamber is provided at a central portion along the longitudinal direction of the floating island main body frame, and a float chamber is integrally disposed on both the left and right sides in the lateral width direction. the provision of a filter chamber having a semi-circular sides of the filter comprising a slit-shaped or wire net in the longitudinal direction of the one end sandwiched together with the floating island body frame, only set the pump receiving chamber to the other, contact the catalytic oxidation chamber oxide the timber, the filtering material in the filter chamber (4), the float housing a float, respectively, the pump receiving chamber established the submersible pump which communicates with the drainage nozzle, the aquatic plants on the plane of the island body freight It is intended to be planted.
[0006]
【Example】
Next, embodiments of the present invention will be described with reference to the drawings. 1 is a floating island body frame forming the floating island of artificial forms an oval planar portion and a bottom portion approximates a oval shape, the vertical bar 1 ₃ the plane frame 1 ₁ and the bottom frame 1 _two-side frame And a predetermined height H is formed.
[0007]
Reference numeral 2 denotes a contact oxidation chamber disposed at a central portion in the longitudinal direction of the main body frame 1, and a contact oxidation material 6 is accommodated in the chamber. 3 is a plurality of float chamber arranged on both sides of the width direction of the catalytic oxidation chamber 2, are stretched punching metal or wire mesh 3 ₁ on its outer circumferential surface. 4 filter chamber disposed at one end in the longitudinal direction of the catalytic oxidation chamber 2 and the float accommodating chamber 4 is (= filtration chamber), the semi-circular slit-like or at least filtering material does not depart on the outer peripheral side surface of the mesh screen The filter 4 ₁ is stretched . Reference numeral 5 denotes a pump storage chamber disposed at the other end of the main body frame 1 . Each room of the partition of the are once separated by such a plane frame 1 ₁ and the bottom frame 1 ₂ and the vertical bar 1 ₂ and side plates, but the partition member completely shielded almost plain state in the absence Yes.
[0008]
6 is a contact oxidant housed in a contact oxidation chamber, and as a material thereof, there is a filter medium having a high surface area ratio instead of gravel (= pebbles) or stone. The above-mentioned gravel is a method of purifying water by passing water through a lump, generating microorganisms and moss on the stone surface using dirt as a nutrient source. Filter media used those bottom removing machining empty container of lactic acid bacteria beverage Yakuru preparative 65 called Yakult filter media. In the embodiment of the present invention, a Yakult filter medium is used and stored in a cylindrical bag 60 formed of polyethylene net.
[0009]
Reference numeral 7 denotes a Yakult filter medium accommodated in the filter chamber 4. The material and shape of the Yakult filter medium are the same as those of the Yakult filter medium accommodated in the contact oxidation chamber 2, and are stored in the filter chamber 4 in an exposed state. . 8 is a cylinder-type float housed in the float chamber 3, 9 is a submersible pump mounted in the pump housing chamber, 10 is a water discharge nozzle, and in FIG. 1, it is connected to the submersible pump 9 by a hose 11 and is directly above the water surface. that has become a structure to discharge water toward the surface of the water. Reference numeral 12 denotes a concrete weight that suppresses the flow of the main body frame 1. A switchboard 13 is connected to the submersible pump side with a cable cord 14 laid in the water. In the figure, reference numeral 15 denotes a greening plant made of an aquatic plant that allows misohagi , reed, and water hyacinth (“Table 3” in paragraph “0014”) applied on the plane of the floating island body frame 1.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. First, the contact oxidation chamber 2 of 12,000 bags is stored in the contact oxidation chamber 2 of the main body frame 1 of the floating island, and the cylinder type float 8 is installed in the float chamber 3 on both sides of the contact oxidation chamber 2. filling the catalytic oxidation material 7 Yakult filter material in the filter chamber 4 provided with the slit-shaped filter 4 ₁ a longitudinal end across the, the floating island body a by installing the water pump 9 to the pump housing chamber 5 of the other end Constitute.
[0011]
The contact oxidation material 6 and filter material 7 of Yakult filter media are excellent in trapping suspended solids (SS), chemical oxygen demand (COD), biological demand (BOD), nitrogen (N), phosphorus It is effective in removing (P) and prevents eutrophication of water quality. Moreover, as a characteristic, styrene monomer is high, there is no possibility of elution of environmental hormones, and durability can be used permanently unless it is exposed to ultraviolet rays. The purification characteristics are most effective in removing biological requirements, and in combined treatment septic tanks where a large amount of the current filter medium is used, the treated water is 5 mg / l or less, or as a filter medium that does not produce sludge. There is high trust.
[0012]
Next, the construction sequence until floating installation and operation start of the floating island body will be described.
(1) As a preparatory work, the selection of the floating installation location of the floating island A and adjustments such as surveying are performed.
(2) As the primary power construction, the primary electrical work up to the power distribution board at the shore will be performed.
(3) As the distribution board foundation work, construction of the foundation of the distribution board 13 and the protective fence for controlling the operation of floating installation of floating island body A is performed.
(4) Arrange a crane truck or the like to carry floating island A.
(5) As the first installation work of the floating island body A, the transport vehicle is brought close to the shore, suspended with a crane or the like to the target position on the water, and the floating state is adjusted.
(6) As the second installation work of the floating island body A, the floating power source frame 1 is moored, the water discharge nozzle 10 is installed, the hose 11 is connected, and the primary power source is connected to the submersible pump side via the cable board 14 via the switchboard 13. Work such as connecting.
(7) As greening of the floating island body A, the greening planting by the aquatic plant 15 is performed after the installation of the floating island body A is completed.
(8) As a trial operation, the amount of water discharged from the water discharge nozzle 10 is adjusted.
(9) Finally, purification by surface water circulation is started by the main operation of the submersible pump 9.
[0013]
"Purification with catalytic oxidation filter media"
The purification data of the closed water area using the Yakult filter medium, which is obtained by bottoming out the empty container of the lactic acid bacteria beverage Yakult 65 used as the filter medium 7 and the contact oxidation material 6 stored in the contact oxidation chamber 2 and the filter chamber 4 , is as follows. As shown. (However, 12,000 lactic acid bacteria beverage Yakult 65 used per floating island)
[Table 1]
[Table 2]
[0014]
"Purification by floating green islands"
The purification of the floating island body by greening floats the floating island body A to the water surface by the float 8, and plants aquatic plants on the upper surface of the floating island body. Planting aquatic plants 15 creates a biotope on the surface of the water, bringing peace to the landscape. In general, the aquatic plant 15 has a function of adsorbing nitrogen and phosphorus, and the main ones are shown in the following table.
[Table 3]
[0015]
"Purification by circulating flow"
In order to purify the pond water, the submersible pump 9 (0.4 kw, 100 V or 7.5 kw, 200 V) is installed for purification by circulating flow. The treated water is discharged near the water surface by the water discharge nozzle 10, and a circulating flow is generated between the filter in the filtration chamber 4 and the water discharge nozzle 10. (See Figure 5)
[0016]
"Purification by removing sea lions"
In the purification by water-bloom removal, a part of the filter floats near the water surface. Therefore, in the water area where a large amount of water-bloom is generated or in the water area where the water-bloom blows, the filter is made into a slit and sucks the pole surface water. Is connected to a filtration chamber installed on the ground, and Aoko uses it after composting or drying and incinerating. (See FIG. 6).
[0017]
【The invention's effect】
As described above, the present invention has an effect of purifying surface water by using a combination of a contact oxidation filter medium method and a circulating flow method in an artificial floating island. In addition, the circulating flow becomes aerobic, and even if there is a variation in oxygen between the bottom and the surface of a pond, etc., there is an effect that the bottom sludge can be decomposed. Furthermore, purification of water quality can be realized by adding and combining a method for planting aquatic plants.
[0018]
Further, the present invention can improve the water quality gradually from the vicinity of the water surface to purify the water area. Moreover, since it is a structure which floats a floating island body on the water, there is no need for the foundation construction for installing a main body, and amenity can be improved by planting aquatic plants on a floating island body.
[0019]
Furthermore, in the present invention, purification of water quality can be realized by combining a system using a catalytic oxidation filter material, a system using a circulating flow, and a system for planting aquatic plants.
[Brief description of the drawings]
FIG. 1 is a front view of a water purification device using an artificial floating island according to the present invention.
FIG. 2 is a plan view of a floating island main body frame.
FIG. 3 is a front view of FIG. 2;
4 is a perspective view of FIG. 2. FIG.
FIG. 5 is a schematic front view showing a circulation flow with respect to the floating island body frame.
FIG. 6 is a flow chart for purification by removal of aquatic fish.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floating island body frame 2 Contact oxidation chamber 3 Flotte chamber 4 Filter chamber 5 Submersible pump chamber 6 Contact oxidation material 7 Filter material 8 Cylinder type float 9 Submersible pump 10 Water discharge nozzle 11 Hose 12 Concrete weight 13 Power distribution board 14 Cable cord

Claims (2)

Floating island is floated on the water surface through the float (8) accommodated in the main body frame (1) integrally molded float chamber to the both sides (3), mounted in the pump housing chamber floating island body frame (1) (5) Water Water is discharged from the discharge nozzle (10) communicating with the pump (9) toward the surface of the water, and the surface water is sucked to continue the circulation flow. The circulation water is supplied to the slit filter chamber (4 ) of the floating island body frame (1). ) from the entry is, floating island catalytic oxidation chamber provided in the central portion of the longitudinal main frame (1) (2) through by water pump chamber enters (5), and discharge water toward the surface of the water from the water discharge nozzle (10), A water purification method using an artificial floating island, characterized in that an aquatic plant (15) is planted on a plane of a floating island body frame (1) . The contact oxidation chamber (2) is provided in the central part along the longitudinal direction of the floating island body frame (1), and the float chamber (3) is integrally arranged on both the left and right sides in the lateral width direction, and the longitudinal direction sandwiching the central part one end provided a filter chamber having a semi-circular sides of the filter (4 ₁₎ comprising a slit-like or wire mesh (4) integral with the floating island body frame, only set the pump housing chamber (5) at the other end, catalytic oxidation The chamber (2) contains the contact oxidant (6), the filter chamber (4) contains the filter medium (7), the float chamber (3) contains the float (8) , and the pump storage chamber (5). is established the water pump (9) communicating with the drainage nozzle (10), a water purification device according to an artificial island, which comprises planting aquatic plants (15) on the plane of the floating island body frame (1) .