JPH05200211A - Water treatment bag - Google Patents

Abstract

PURPOSE:To provide a water treatment bag capable of treating a large amount of seawater containing pollution causing organisms of a red tide within a short time and economically purifying seawater and preventing the expansion of the red tide. CONSTITUTION:A water treatment bag 13 has a bag main body 3 wherein an inner bag is covered with an outer bag 2 and is constituted by providing an intake port 5 of water to be treated to the upper end part of the bag main body 3 and covering the outer periphery of the perforated cylinder 7 arranged in the lower part of the inner bag with filter cloth 8 composed of a nonwoven fabric. By this constitution, the bag main body 3 is made small-sized to be transported to the red tide occurring spot and suspended from a support member to supply seawater containing pollution causing organisms into the inner bag from the intake port to collect the organisms by the filter cloth 8 and seawater can be discharged out of the bag main body 3 through the filter cloth 8 and the perforated cylinder 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment bag mainly used for removing organisms causing pollution that cause red tide.

[0002]

2. Description of the Related Art The applicant of the present invention previously filed Japanese Patent Application No.
No. 112879 (filed May 17, 1991) proposes a sewage treatment bag. This sewage treatment bag has a flexible bag body consisting of a water-impermeable inner bag and an outer bag that covers the inner bag and supports the load, and the outside of the bag body and the inner bag are provided at the upper end of the bag body. Provided with a treated water intake and a communication port for communicating with the inside,
A lower structure that connects the inside of the inner bag and the outside of the bag body is provided in the lower part of the inner bag, and a separation and permeation member that captures pollutants such as waste oil and spilled crude oil in this lower structure, and the separation and permeation member It is provided with a water blocking member which is arranged below to open and close the lower structure.

In this wastewater treatment bag, an outer bag is hung on a support member, and a water stop member provided in a lower structure is opened, and pollutants such as waste oil and crude oil are discharged at or near the outflow site by a pump or the like. It is supplied together with water, such as seawater, into the inner bag from the water to be treated, and waste oil is captured and separated by the separation and permeation member made of hydrophilic woven fabric such as canvas provided in the lower structure to purify the water. Drains out of the bag body.

On the other hand, red tides have recently occurred in the Seto Inland Sea and various bays, which have caused great damage to farmed fish such as hamachi, and a large amount of green worms (also called green algae) are also generated in lakes and marshes. , Has an adverse effect on farmed fish.

[0005]

Therefore, the sewage treatment bag previously proposed by the applicant of the present invention is provided with a flagellated algae, diatoms, nocturnal worms or the like which are the causative organisms of the red tide pollution (including these carcasses). ) Is considered to be used.
However, in the example of the sewage treatment bag proposed above, the separation / permeation member is composed of the main body consisting of a short cylinder of the lower structure, and the hydrophilic woven fabric consisting of canvas crossing the main body, which is stretched over the main body. When the causative organism is captured, the area to be captured is small and the woven fabric is likely to be clogged, which makes it difficult to treat seawater efficiently.

The present invention solves the problem without losing the advantages of the above-mentioned applicant's previously proposed one, and a large amount of seawater or the like containing pollutants such as red tide in a short time. It is an object of the present invention to provide a water treatment bag that can be treated, can easily purify water such as seawater, and can prevent pollution from spreading, and can be economically performed.

[0007]

The water treatment bag of the present invention comprises:
The bag has a flexible bag body composed of a water-impermeable inner bag and an outer bag that covers the inner bag and bears a load. The upper end of the bag body is connected to the outside of the bag body and the inside of the inner bag. A treated water inlet is provided, and a perforated cylinder is arranged in the lower part of the inner bag, and the outer circumference of the perforated cylinder is covered with a filter cloth made of a non-woven fabric to capture organisms causing pollution, and the porous tube and filter cloth are provided in the bag body. Connect, close the top opening of the perforated cylinder with the thin plate of the filter cloth or water impermeable material,
A lower end opening protruding below the bag body is provided in the perforated cylinder, and a water blocking member for opening and closing the lower end opening is provided at a portion of the perforated cylinder protruding below the bag main body.

[0008]

In the water treatment bag according to the present invention, for example, a large polyethylene bag is used as an inner bag, and a bag made of a synthetic resin string weaving product made of the same material as that of the container back of powder is used as the outer bag. Since it is possible to use flexible materials other than the perforated tube such as the inner bag and the outer bag, it is possible to wrap the inner bag and the outer bag around the perforated tube in a vacuum package, etc. In addition to being able to store a large number of water treatment bags in a small sparse space, the water treatment bags are lightweight and can be easily and quickly transported to or near the site of use such as in the red tide area.

In order to use the water treatment bag of the present invention, the outer bag is hung on a hook or the like of an appropriate supporting member and a contaminant-causing organism and the like, such as seawater, are pumped from the treated water intake port by a pump or the like. The contaminant-causing organisms and the like are captured and separated by a filter cloth made of a non-woven fabric, which is supplied into the inner bag and is arranged below the bag body to cover the outer periphery of the perforated cylinder, and the water is discharged to the outside of the bag body.

In this case, the bag body has an outer bag and an inner bag, and the outer bag supports the load of water such as pollution-causing organisms and water and protects the inner bag. Therefore, the inner bag is inexpensive such as polyethylene. It can be formed of a non-permeable material. Also, since the outer circumference of the perforated cylinder is covered with a non-woven cloth filter, the area for capturing organisms causing pollution by the filter can be increased by appropriately adjusting the diameter and length of the perforated tube and the diameter and number of holes. It is possible to make a large amount of water containing pollution-causing organisms in a short time because it is easy to make the size of the water passage of the non-woven cloth, that is, the eyes larger than the woven cloth that captures waste oil and crude oil. Can be processed.

If the above-mentioned use is continued, contaminant-causing organisms and the like captured on the filter cloth will accumulate on the bottom of the inner bag on the outer peripheral side of the filter cloth, and the filter cloth will be clogged and its function will deteriorate.
At this time, when the supply of water containing pollution-causing organisms from the intake is stopped and the water in the inner bag is almost exhausted,
The water stop member closes the lower end opening of the perforated cylinder to stop the discharge of water out of the bag body.

After that, the inner bag and the outer bag are folded and the water treatment bag is carried to a treatment site or the like, and the water treatment bag and the trapped contaminants are treated by appropriate means. In this case, the main body of the water treatment bag can be folded into a small size and easily transported to a treatment site, etc., and the entire water treatment bag can be incinerated so that the water treatment bag can be incinerated for disposal. it can.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is a water impermeable inner bag, 2 is an outer bag that covers the outer periphery of the inner bag 1 and supports a load,
The inner bag 1 and the outer bag 2 constitute a flexible bag body 3. The inner bag 1 is made of a water impermeable synthetic resin bag such as polyethylene having an inner volume of about 1 m ³ . The outer bag 2 is made of a woven or woven product of a synthetic resin string such as polypropylene, and is formed in a shape and a size that closely contact and cover the inner bag 1 in a state where the inner bag 1 is inflated. Both ends of the carrying hand 4 are fixed to the outer peripheral surface of the outer bag 2, respectively. The carrying handle 4 extends above the outer bag 2 and is made of a synthetic resin knitted product made of the same material as the outer bag 1.

At the upper end of the bag body 3, a treated water intake port 5 is provided by the upper opening of the inner bag 1 and the outer bag 2.
At the lower part of the inner peripheral surface of the inner bag 1, a bottomed shaping cylinder 6 made of a nonwoven fabric made of a fiber having elasticity and relatively coarse mesh is superposed and fixed. The inner bag 1 and the outer bag 2 are projected upward on the cylindrical body 6 by a length substantially equal to the diameter of the cylindrical body 6.

A lower structure 9 is arranged in the lower part of the inner bag 1. The lower structure 9 has a perforated cylinder 7 made of a synthetic resin pipe such as an underdrain drainage pipe for agriculture.
As shown in FIG. 3, the cylindrical reinforcing member 7 has a large number of small holes 7b radially extending through the cylindrical body 7a.
It is formed in the thin portion 7d formed between c. The outer peripheral surface of the perforated cylinder 7 is covered with a non-woven cloth filter 8 made of fibers or the like having a large number of water passage gaps of about 2 to 6 μm,
A lower structure 9 is formed by using the perforated cylinder 7 and the filter 8 as main members. Further, a closing member 10 is provided at the upper end opening 7e of the perforated cylinder 7, and the closing member 10 is formed of a non-woven fabric of the same material as the filter cloth 8 and fixed to the upper portion of the filter cloth 8. The closing member 10 may be formed of a thin plate made of a water impermeable material such as synthetic resin, and the thin plate may be fixed to the upper end of the perforated cylinder 7.

The perforated tube 7 and the filter cloth 8 are arranged at the center of the inner bag 1, the lower end is fixed to the inner bag 1 and connected to the outer bag 2, and the drain tube 11 is attached to the lower end of the perforated tube 7. Is fitted and fixed, and the lower end of the drain pipe 11 is penetrated through the lower end surfaces of the inner bag 1 and the outer bag 2,
By making the lower end opening 7f of the perforated cylinder 7 communicate with the lower part of the bag main body 3 by projecting it downward of the bag main body 3, the water blocking lid 12 as a water blocking member is detachably fitted to the lower end of the drain cylinder 11. It is fixed.

When the water treatment bag 13 constructed as described above is not used, as shown in FIG. 4, a shaping cylinder 6 made of nonwoven fabric, an inner bag 1, an outer bag 2 and The carrying handle 4 is wound to make it smaller, and the whole is housed in a synthetic resin film 14 for packaging and vacuum-packed. At the time of use, the water treatment bag 13 is put on a ship while being packaged, carried to a red tide generation site with a pump, the synthetic resin film 14 is cut off, and the shaping cylinder 6 expands by elastic restoring force, as shown in FIG. In addition, the lower part of the bag body 3 is expanded and held in a tubular shape, the water blocking lid 12 is removed, and the carrying hand 4 is hooked on the hook 15 of the supporting member provided on the deck of the ship to suspend the bag body 3. .. Next, the hose 16 connected to the discharge port of the pump on the ship is put into the inner bag 1 from the treated water intake 5, the pump is driven, and flagellates, diatoms, which are the organisms causing the red tide pollution, Luminous insects (including these carcasses) are pumped up together with seawater and supplied into the inner bag 1 from the treated water intake 5 of the bag body 3 via the hose 16.

Contamination-causing organisms and the like supplied in the inner bag 1 together with seawater are captured by the non-woven cloth filter 8, and only seawater permeates the filter cloth 8, and the small holes 7b of the perforated cylinder 7 and the perforated cylinder 7 It is discharged to the outside of the bag body 3 through the drainage pipe 11 in the tubular body 7a and returned to the sea or the like. Then, the pollution-causing organisms are continuously or intermittently supplied together with the seawater, and the pollution-causing organisms trapped in the filter cloth 8 are accumulated on the outer side of the inner bag 1 and the bottom filter cloth 8 and the filter cloth 8 is clogged. Then, it becomes difficult for seawater to permeate this.

Therefore, near the water treatment bag 13 in use,
The unused water treatment bag 13 is suspended in advance, the pump is once stopped, the hose 16 is pulled out from the used water treatment bag 13, and inserted into the inner bag 1 of the unused water treatment bag,
The inner bag is changed so that organisms causing pollution are supplied together with seawater, and the pump is restarted. Then, the plurality of water treatment bags 13 are sequentially used to perform the treatment work. However, when the supply of the pollution-causing organisms and the seawater to the clogged water treatment bag 13 is stopped in a timely manner, the seawater is treated. 5 does not overflow, but is gradually discharged from the drainage pipe 11, and almost no seawater is left in the inner bag 1. In this state, the drain tube 11 is attached to the water stop lid 1.
2 is fitted and fixed, the bag main body 3 is removed from the hook 15, the upper portions of the inner bag 1 and the outer bag 2 are folded above the perforated cylinder 7, and the water treatment bag 13 is miniaturized and stored in an appropriate place on the ship.

Then, the used water treatment bag 13 in which the organisms causing the pollution are accumulated on the bottom of the inner bag 1 and the water blocking lid 12 is fitted and fixed to the drain 11 is lifted from the ship to the land and an appropriate means is taken. And dispose of the water treatment bag in general. As mentioned above, before entering the fish farm, the seawater is purified by capturing the red tide pollutants and removing them from the seawater.
Alternatively, it is possible to prevent the red tide from expanding and eliminate or reduce the damage and adverse effects of the red tide on the cultured fish in the fish farm. In the case of a small red tide, it is possible to eliminate the entire red tide that has occurred.

When the range of red tide is large, if necessary, a plurality of pumps may be mounted on a single ship or used to remove polluting organisms.
Instead of mounting the pump on the ship, the pump and the water treatment bag may be attached to a shelf of a fish farm to remove the organisms causing the pollution. The shaping cylinder 6 not only holds the lower portion of the bag body 3 in a tubular shape at the start of use of the water treatment bag 13 and holds it in this state during use, but also the shaping cylinder 6 is made of a nonwoven fabric. Therefore, it has a function of capturing the organism causing the pollution, and helps to slow down the clogging of the filter cloth 8.

In the present invention, in the above-described embodiment, the drain cylinder, which is a separate member from the lower cylinder, is fitted and fixed to the lower end of the porous cylinder.
Instead of using this drainage cylinder, a part without a small hole may be provided at the lower end of the perforated cylinder, and this part may be projected downward from the lower end surface of the bag body. Further, in the above-mentioned embodiment, the water blocking lid which is detachable as the water blocking member is provided, but the draining tube and the perforated tube are opened and closed by pulling them out at the lower end of the drain tube and the perforated tube, which project below the bag body. A water shutoff member such as a gate valve may be provided.

In the present invention, the material of the non-woven fabric constituting the filter cloth and the water passage gap, that is, the size of the mesh can be changed as appropriate, but the water passage gap must be made larger than that for waste oil or crude oil, and the treated material should be treated. The water inlet is also made smaller by squeezing the upper end of the inner bag to prevent water from splashing outside the inner bag even when water such as seawater containing contaminant-causing organisms is forced into the inner bag. The inner bag, the outer bag, and the shaping cylinder are not limited to have a circular cross section, but may have a rectangular cross section or the like.

Further, in the above-mentioned embodiments, the removal of the organism causing the red tide pollution in seawater was explained, but the present invention can also be used for the removal of green worms (green algae) that have abnormally grown in lakes.

[0025]

As described above, the sewage treatment bag of the present invention has a flexible bag body composed of a water-impermeable inner bag and an outer bag which covers the inner bag and supports a load. A treated water intake is provided at the upper end of the bag body to connect the outside of the bag body with the inside of the bag, and a perforated cylinder is arranged in the lower part of the inner bag. The perforated tube and the filter cloth are connected to the bag body, the upper end opening of the perforated tube is closed with the filter cloth or a thin plate of a water impermeable material, and the perforated tube projects below the bag body. Since the lower end opening is provided and the water blocking member that opens and closes the lower end opening is provided in the portion of the perforated cylinder projecting below the bag body, the following effects can be obtained.

That is, in the water treatment bag according to the present invention, for example, a large polyethylene bag is used as the inner bag, and a bag made of a synthetic resin string weaving product made of the same material as the powdery container back is used as the outer bag. Can, inner bag,
Since materials other than the perforated cylinder such as the outer bag can be made of flexible material, a large amount of water can be treated by miniaturizing it when not in use, such as wrapping the inner bag and outer bag around the perforated cylinder in a vacuum package. The bags can be stored in a small sparse area, and the water treatment bag is lightweight, so that a large number of bags can be easily and quickly transported to or near the site of use such as the sea area where the red tide occurs.

To use the water treatment bag of the present invention, the outer bag is hung on a hook or the like of an appropriate supporting member and a contaminant-causing organism and the like, such as seawater, are pumped from the treated water intake through a pump or the like. The contaminant-causing organisms and the like are captured and separated by a filter cloth made of a non-woven fabric, which is supplied into the inner bag and is arranged below the bag body to cover the outer periphery of the perforated cylinder, and the water is discharged to the outside of the bag body.

In this case, the bag body has an outer bag and an inner bag, and the outer bag supports the load of contamination-causing organisms and water and protects the inner bag. Therefore, the inner bag is inexpensive such as polyethylene. It can be formed of a non-permeable material. Also, since the outer circumference of the perforated cylinder is covered with a non-woven cloth filter, the area for capturing organisms causing pollution by the filter can be increased by appropriately adjusting the diameter and length of the perforated tube and the diameter and number of holes. It is possible to make a large amount of water containing pollution-causing organisms in a short time because it is easy to make the size of the water passage of the non-woven cloth, that is, the eyes larger than the woven cloth that captures waste oil and crude oil. Can be processed.

If the above-mentioned use is continued, contaminant-causing organisms and the like captured on the filter cloth will accumulate on the bottom of the inner bag on the outer peripheral side of the filter cloth, and the filter cloth will be clogged and its function will deteriorate.
At this time, when the supply of water containing pollution-causing organisms from the intake is stopped and the water in the inner bag is almost exhausted,
The water stop member closes the lower end opening of the perforated cylinder to stop the discharge of water out of the bag body.

After that, the inner bag and the outer bag are folded and the water treatment bag is carried to a treatment site or the like, and the water treatment bag and the trapped contaminants are treated by appropriate means. In this case, the main body of the water treatment bag can be folded into a small size and easily transported to a treatment site, etc., and the entire water treatment bag can be incinerated so that the water treatment bag can be incinerated for disposal. it can.

Therefore, according to the present invention, seawater containing pollutants such as red tide and water containing green worms of lakes and marshes are separated and captured from the pollutants, green worms, etc. on site. In addition, a large amount of treatment can be performed in a short time, water such as seawater can be purified and the spread of pollution can be prevented quickly, and the cost is excellent.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a water treatment bag according to an embodiment of the present invention in a use state.

FIG. 2 is a vertical sectional view of the water treatment bag of FIG.

FIG. 3 is a partially enlarged perspective view showing a perforated cylinder of the water treatment bag shown in FIG.

FIG. 4 is an explanatory cross-sectional view of a packaging state of the water treatment bag of FIG.

[Explanation of symbols]

 1 Inner bag 2 Outer bag 3 Bag body 4 Handle 5 Treated water inlet 6 Shaping cylinder 7 Perforated cylinder 7a Cylindrical body 7b Small hole 7c Reinforcing section 8 Lower structure 10 Closing member 11 Drainage tube 12 Stopper Water lid (water supply member) 13 Water treatment bag 14 Synthetic resin bag for packaging

Claims (1)

[Claims] 1. A flexible bag body comprising a water-impermeable inner bag and an outer bag that covers the inner bag and supports a load, and the outside of the bag body and the inner bag are provided at the upper end of the bag body. Provided with the treated water intake that communicates with, and arranged a perforated cylinder in the lower portion of the inner bag,
The outer periphery of the perforated cylinder is covered with a non-woven cloth for catching pollution-causing organisms, the perforated cylinder and the non-woven cloth are connected to the bag body, and the upper end opening of the perforated cylinder is formed with the thin cloth of the non-permeable material or the non-permeable material. A water treatment bag characterized in that a lower end opening which is closed and is provided below the bag body is provided in the perforated cylinder, and a water blocking member which opens and closes the lower end opening is provided at a portion of the perforated cylinder which is projected below the bag body.