JPS63287597A - Suspending type water treatment equipment - Google Patents

Abstract

PURPOSE:To efficiently purify the circumference of soil water by suspending a pair of aeration scope wheels by a float at a given height on the water, giving them contrary revolution to each other and partitioning the internal water zone from the external water zone by circular arcuate surface screens corresponding to the external peripheries of the water wheels under the float and vertical screens. CONSTITUTION:The pair of aeration scoop wheels 1 is suspended by the float 5 at a given height on the water to give contrary revolutions. The internal water zone is partitioned from the external water zone by the circular arcuate surface screens 6 corresponding to the external peripheries of the water wheels and the vertically hanging screens 7 and an internal and an external circular water flow are generated by an upward or a downward flow in the internal and the external water zone by the pumping effect of the water wheels 1. As a result, it becomes possible to efficiently purify the circumference of soil water.

Description

Detailed Description of the Invention This invention is covered by Japanese Patent No. 1220123 by the same inventor.
No. 1, the invention title is "Catalytic oxidation water treatment device" and Japanese Patent No. 1278496 is an application patent for the invention title "Aerated water pumping water tank". It is a floating type device that attempts to highly purify the water in the surrounding water area by floating a large number of objects, and unlike conventional water treatment devices, it requires land acquisition and residents' agreement to solve the fly problem. Needless to say, supply water pumps, piping, drainage equipment, sludge treatment equipment, water level and water quality management, etc., are completely unnecessary or are extremely effective in improving the social water environment, requiring only minimal consideration. It is.

Recently, red tide, blue-green algae, oil slicks, etc. have been floating on the water surface of closed water areas such as Seisou, lakes, rivers, and small waterways due to the inflow and accumulation of domestic wastewater, livestock wastewater, industrial wastewater, and aquaculture fish and shellfish wastewater. This situation is being left unaddressed without proper measures, causing great damage to fish and shellfish living in the natural world.

The current mainstream water treatment method is the layered sludge method, which cannot achieve a high degree of purification (BOD 20 ppm or less) due to the efficiency of aeration power, and also generates a large amount of sludge, which requires a large amount of money to process. In addition to the expense involved, even the process is at a standstill from various points of view. In order to introduce a catalytic oxidation device as a tertiary treatment device, which generates little sludge and has a highly advanced food chain based on large organisms, it is necessary to secure land for installation. In addition, in industrial wastewater treatment, the amount of water and the quality of contaminated water fluctuate widely depending on holidays, seasons, holidays, etc., so the activated sludge method cannot cope with this, and the current situation is that poor water must be discharged inadvertently.

Even on a small scale, industries and livestock farms that produce rich sewage water can jeopardize the profitability of expensive water treatment facilities.
, strict regulations are also difficult. Originally, water treatment facilities were conceptualized as ancillary facilities and had to be designed one by one, taking into account the remaining vacant land, and the main work was on-site construction, with orders for individual surveying, which naturally led to high construction costs. , the cost of maintaining and managing the equipment is also enormous since it is considered sanitary and undesirable.

This current solution has a simple structure with standardized specifications, is mounted on a factory mass automatic production line, and can be assembled on-site by a small number of people in a short time. The purpose of this project is to provide an advanced water treatment system using the catalytic oxidation method at a low cost, which can be used as is in an uncircumcised pond dug in a vacant lot.The required number of units is selected according to the load, and the water depth is This invention was developed from the perspective of solving the land issue and easily gaining the consent of local residents through the unique idea of creating a ditch-like part at the bottom of a shallow canal and turning it into a treatment facility. Details will be explained using figures.

As shown in the cross-sectional front view of Fig. 1 and the plan view of Fig. 2, the above-mentioned Japanese Patent No. 1220123 "Catalytic Oxidation Water Treatment Apparatus"
This is a device in which the external water tank is omitted and only the internal device is floated at a fixed position above the water surface using the buoyancy of the float, and the shape of the external water tank does not need to be considered at all. do not have.

In this case, the aeration effect and the generation of contact water flow are achieved by using a lightweight synthetic resin perforated pipe blade (2), which has a simple structure and assembly, has a small number of parts, has long durability, and is reliable for long-term continuous operation.
(2) Japanese Patent No. 1278 consisting of...
No. 496 "Aeration pumped water turbine J (1) (1) belongs to the category of optimal water turbines. The reason is that commercially available pond float turbines are of the plate vane type and use a surface water droplet scattering method, and the rotation speed is as high as 100-odd revolutions per minute. On the contrary, the aeration pumped water turbine (hereinafter referred to as a water turbine) (1) (1) has a structure that consumes a large amount of power and is completely unsuitable for generating a vertically circulating water flow.However, the above-mentioned aeration pumped water turbine (hereinafter referred to as a water turbine) (1) (1) can aerate at a rotation speed of 30 times per minute or less. Not only does it have extremely good performance, it generates a large amount of circulating water flow, and its power consumption efficiency is also very good.It is also a type of water turbine that makes it easy to obtain the required head, and its track record as of the time of this application is that it has only a short period of time since its release. It has been well-received by more than 1,000 fish and shellfish farms in Japan, and is used for the purpose of completely recycling water for farming.

Two water turbines of this type (1) (1) rotating shaft (3,) (3)
The disc (4) at the end of the water vehicle fixed to the perforated tube blade (2
) (2) A pair of water turbines (1) (1) fixedly installed are given opposing rotations, facing each other, and placed on floats (5) (5) made of foamed resin material, etc. Fix it.

When used as a catalytic oxidation water treatment device, the water turbine (1) (
1) Arc surface partition plate (6) (6) that increases the water pumping function
And the dashed line (8) consisting of the vertical partition plates (7) (7) connected to this and the floats (5) (5) on the front and rear sides.
An appropriate amount of contact material (9) in the form of a laminated polygonal resin network that slightly floats on water is filled into the inner area indicated by the cross in (8). This contact material (9) is based on Japanese Patent No. 1317260 "Apparatus for manufacturing square packing for water treatment" by the same inventor. U.S. Pat. No. 4,620,895, No.
APPARATUS FORMANUFA, CT
U R Engineering NG A SQ, UAREFII, LKR
Square fillings automatically mass-produced by FO, RWATERTRKATMKNTJ (9)...
is the optimal contact material.

Like the aeration turbine (1), this square contact material (9) can be used not only in the fish and shellfish aquaculture industry, but also for the purification and circulation of culture water for rotifers and daphnia, which are the initial food organisms after frying. Compared to conventional sand, shell, and crushed stone filtration, it has attracted attention as a filter material that is easy to use, has a proven track record, is extremely stable in terms of material, and has no negative effects on living organisms in the natural world. , which contributes to the growth balance.

Another reason why this contact material (9) is more effective in this invention is that this raw material is a mesh laminate made of high quality polyethylene resin with a true specific gravity of about 0.95 to 0.97, and has appropriate rigidity and flexibility. It has a light, bulging shape with a porosity of 95%.
As mentioned above, even when handled as a round bar, there is no damage at all, and even if the individual meshes are blocked, water can pass between them, so the hearth as a whole will not be blocked at all. Because it is a net-shaped material, even if it is stacked and filled in large quantities, it will not bulge and float to the surface.
Missing water enters every corner of the contact material (9) and becomes submerged in water.

If various adherent microorganisms adhere to the wires of the mesh,
Common sense would suggest that the water would sink due to its weight, but in reality, the buoyancy increases because the contact material (9) contains a large amount of microbubbles in the water in the aeration turbine (1). It becomes trapped inside and becomes a bubble of hypertrophic growth, creating a levitation effect,
This also never happens uniformly in all places, and the contact material (9
)・・・・・・・There is a difference in specific gravity in the filling area, and the whole body gradually rotates, and after a long period of time, the top, bottom, left, and right sides naturally switch, resulting in the average adhesion effect of microorganisms over time. This can be said as a result of detailed observation of numerous actual cases.

Therefore, this contact material (9) has nothing to do with this flotation device and floats on its own, so it does not cause a change in the flotation position of the device and always maintains a constant position. Being able to do so is also a very useful feature.

Next, water flows naturally into the device, and the serrated weir plate αO
Depending on the QO, the floating position is adjusted so that the average surface water aυ flows into the lower part of the aeration turbine (1) (1) in the device, and the weir plate α□Qt) is fixed to the device as shown in the figure. ing.

It is better to use a rigid flat plate for the upper part of the vertical partition plates (7) (7), but it is better to construct the lower half part @ (6) on all sides with a flexible film such as rubber-coated kinbus or resin. This type of usage is advantageous for installation and construction. The bottom is separated from the outside by a round, strong resin net (9) for the purpose of preventing the contact material (9) from being washed away. To adjust the floating position, the entire device is completed by placing and fixing the ``palp'' (not shown) as appropriate. The symbols α→... in the figure are the bearings of the rotating shaft (3) and transmission shaft αG of the water turbine (1), and the bevel gears αt190s... Although an example of conduction is shown, the respective water turbines (1) (1) may utilize separate constant velocity prime movers.

After the device is completed and floats, the contact material (9) need only be added, and the amount filled can be increased or decreased depending on the water quality, and the contact material (9) can be easily removed by scooping it up with a basket. This can be said to be another excellent feature of material (9).

Next, to explain this action and effect, oil films, blue-green algae, red tide, scum, detergent θ) foam, etc. floating on the water surface are pulled by the surface tension of the water together with the surface water αD, and the weir plate QOQ □
The water flows through the water wheel (1), is guided to the lower part of the water turbine (1), is aerated and pumped, and is lifted to the water level α in the device above the water level aυ, and is filled with contact material (9)... Sprinkle it on the area, and remove the mesh and mutual gaps of the contact material (9) toward the bottom until it reaches the bottom! After passing through the resin net (6) and exiting to the outside area, the water rises, is mixed with the surface water again, and returns to the inside of the device, thereby repeating the cycle.

This water is organic nutrient water (sewage), and bacteria and protozoa naturally multiply due to aeration, which is the same principle as the activated sludge method, but the contact material (9) is packed in an overcrowded manner. Anaerobic areas also occur in some areas, which is effective for the growth of anaerobic bacteria, and the coexistence of aerobic and anaerobic bacteria not only has the effect of reducing sludge, but also has a very high denitrification and dephosphorization effect, and oil removal is also possible with oil adsorption mats. This contact material (9) is made of the same kind of material...
... has a huge area and is used to attach and remove microscopic objects such as blue-green algae, red tide, oil droplets, etc. that easily adhere to other objects, plankton, etc., and the natural enemy plankton that eats these objects, as well as plankton, which is a natural enemy that eats them, and other objects with lengths ranging from several millimeters to more than 100 millimeters long. A variety of large species such as fish, eels, molluscs, water bugs, nematodes, daphnia, rotifers, etc., live between and within the mesh of contact materials (9)... and are capable of alternating generations. The inventor has observed for many years that this device is a type of cultivation, multiplication, and seed preservation device for living organisms, and this fact has also been confirmed at several hundred locations where it is delivered.

It has also been demonstrated that the various large species mentioned above, including sessile green algae, cyanobacteria, cyanobacteria, and protozoa, live and exist at a density incomparable to that found in the natural world. In this way, when the eggs and larvae (including terrestrial insects) of various organisms connected to each other by a food chain of natural enemies multiply to an excessive density, they are naturally pushed out of the device and released into the external water area. but,
They grow by eating bacteria and protozoa (sludge source) in sewage while growing in natural waters, helping to improve the purification of the sewage environment, and serving as food for large fish such as carp and carp that cannot live in the equipment. This will greatly contribute to the restoration of highly polluted waters that have lost their balance, and the bottom and surrounding area of this device will become a major habitat for large fish. Since most toxic substances such as pesticides are oxidized and purified by continued aeration, it is also highly effective in preventing discomfort such as the floating of large amounts of dead fish.

In this way, the area around and downstream of this device gradually regains its clarity, but if the weather continues to be clear in drainage canals and streams, the only water that flows is septic tank wastewater and household wastewater, resulting in extremely polluted water and an extremely low water level. As a countermeasure, the bottom of the cylinder is dug down to create an abyss so that the lower part of the device can fit into this, and in the event of a flood, a support with a rack prepared near the embankment and a small gear, chino, steel cable, or screw-type lift that engages with the support are prepared.・Equipped with a lifting/lowering device such as a hydraulic cylinder, and raising the water onto the waterway using a simple lifting/lowering mechanism controlled by a microcomputer, it is very easy to take measures to eliminate flood damage caused by this device. If the floating water level is controlled by a microcomputer, it is possible to omit the float and the stability is high.

Apart from the water turbine (1), all parts of this device are lightweight and small, and the contact material (9) is made of a material and shape that makes the biological film very easy to peel off. Since it is not a biofilm that grows intertwined in a plate shape, when lifted above water, most of the biofilm is released from the contact material and falls with the water, so even if a small amount of living organisms or water is attached, the contact material (9)・・・・・・
The weight of 1 d of ... is less than 100 #, and the total weight in the air of a standard device with a maximum water wheel length of 4 m and a diameter of 0.6 m (
Even the wet contact material (9) (including wet contact material (9)) is only about 3 tons, and the lifting speed is slow and it is possible with a small electric motor of about 100 watts, so the lifting mechanism is not exaggerated. No.

Next, in deep water areas such as dams, the lower water is cold in summer,
This device can also be used to eliminate stagnation and oxygen deficiency due to specific gravity.

In other words, the device is as shown in the front sectional view of Fig. 3, but in this case, the presence of the contact material (9) increases the head loss when water passes through it and impairs the flow of water, so it is difficult to fill the device. It's better not to. The bottom water contains mainly anaerobic bacteria and the contact material (9
) Since there are very few living things that need to be removed by .), it is unnecessary from this point of view as well. In other words, a pair of pumped water pumped water turbines (1) (1) are brought closer together than in the case of the above device, and rotated in opposite directions so that the water surface αd in the center becomes the lake water surface a1).
In terms of design, it is desirable to lower the water level further to cause an upward flow, and to raise the water surface outside the turbine α above the lake water level αυ to obtain a descending water flow.

This rising water pipe (goods) and descending water pipe 4 are concentrically floated (
5) Just make it droop more. That is, the internal rising water pipe 121
) is longer and opens closer to the lake bottom, and if the opening of the descending water, which is aerated and contains a large amount of air bubbles, is opened at an intermediate position, effective agitation of the lake water can be achieved without short circuits. By using the above-mentioned contact oxidation equipment on the lakeshore and separately purifying the inflowing surface water, we prevent eutrophication of lakes, marshes, and dams, and widen the sacred waters of fish and shellfish to increase their productivity. obtain.

This invention is not just a combination of past patents; it eliminates the water tank, standardizes only the main parts into a single component, attaches a float (5), and floats at a fixed position on the water surface.
Contact material (9) is an innovative water treatment device that can be supplied in large quantities and is inexpensive, making it possible to easily and immediately implement immeasurable local environmental measures that meet the demands of the "Columbus Egg" era.
・・・・・・・・・ In the case of this device, the effect will have a positive effect on the surrounding area.

Conventional water treatment equipment is extremely expensive due to the cost of containers (water tanks), land costs, pump piping, etc. It goes without saying that the more complicated the equipment becomes, the higher the initial cost and running cost will be. On the other hand, this device does not require land costs, is highly effective, requires no management, and is stable for purifying small rivers, lakes, and areas where water pollution has progressed due to household wastewater or poorly treated industrial wastewater. It is highly useful in preventing sewage pollution, as it rapidly restores nature through its treatment.

In the case of a park area, the upper part of the water can be covered with a decorative cover made of light and durable resin that looks like an artificial island, without damaging the landscape. In addition, if sufficient measures are taken to prevent danger to children and prevent noise in small rivers, etc., such as with covers, the device will be easily accepted by local residents.

[Brief explanation of the drawing]

FIG. 1 is a front cross-sectional view (A-A). Figure 2 is a plan view of the same as above. FIG. 3 is a front sectional view showing an example of a device whose main purpose is aeration of lake bottom water. (1)...Aeration pumped water tank. (2) (2) ... Porous blade spine of water turbine (1). (3)...Water wheel rotation axis. (4) (4)... Discs at both ends of the water wheel. (5)...Float. (6)...Arc surface partition plate. (7) Vertical partition plate. (8)...Contact material (9
) shows the filling area α1...Sawtooth weir 01)...
・External water surface. CI of α) (a)...Flexible sheet membrane 03...Net to prevent contact material (9) from being washed away α→...Rotating bearing. αυ...Transmission shaft, α6...Bevel gear. αη... prime mover. (to)...upward flow. α1...Rising water level outside the water turbine. (1)...downward flow. (to)...The rotation direction arrow of the water wheel. Cl-11-+*'>A<48

Claims (1)

[Claims] A pair of aeration pumping water turbines (Japanese Patent No. 1278496) are floated at a constant height above the water surface to give opposing rotations, and a circular partition plate and a vertical partition plate adapted to the outer periphery of the water turbine are placed at the bottom of the water turbine. A water treatment device that separates the outside water area with a partition surface that hangs down from the outside, and uses the pumping effect of the aeration pumping water wheel to generate internal and external circulating water flows in the internal and external areas, either upward or downward.