JPH059158B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a cylindrical body in which a packed bed of granular or fibrous filter media, iron-removal/manganese-removal filter media, activated carbon, ion exchange resin, etc. is supported. The present invention relates to a packed bed water treatment device that uses a cartridge to perform water treatment.

[Conventional technology]

In general, in packed bed water treatment equipment that performs filtration, adsorption, ion exchange, etc., when the function of the packed bed deteriorates during water flow treatment, the packed bed must be regenerated (including cleaning) to recover its function. ), exchange, etc.

In that case, the water flow process is temporarily interrupted, and the water flow process is resumed after functional recovery work such as regeneration and replacement is completed.

[Problem to be solved by the invention]

By the way, in order to recover the function of the packed bed in conventional packed bed water treatment equipment, it is not only necessary to interrupt the treatment as mentioned above, but also to have functions for regeneration, replacement, etc. It was inevitable that the structure would also become complicated.

The present invention provides such a packed bed type water treatment apparatus, in which the packed bed is of a plurality of cartridge types, and any cartridge can be taken out and regenerated, replaced, etc. easily without interrupting the treatment. The purpose of this invention is to provide a type water treatment device.

[Means to solve the problem]

The present invention provides a cartridge in which a filled layer is supported in a vertical cylindrical body by upper and lower water passage support plates, and a straight body part is formed with a water passage opening in the lower part of the vertical cylindrical body;
A plurality of water collection chambers are formed in the lower part by partition walls, an insertion port is opened in the partition wall on the upper surface of each of these water collection chambers through which the straight body part of the cartridge can be inserted and removed, and furthermore, in each of the water collection chambers, the This is a packed bed water treatment device characterized by comprising a tank body equipped with a float that can be raised and lowered to close an insertion port.

[Effect]

In the present invention, the lower straight body part of the cartridge with a filled layer formed therein is inserted into each water collection chamber in the tank,
When water to be treated is introduced into the tank, it flows through the packed bed of the cartridge, becomes treated water, and flows out of the tank from the water collection chamber. As this process continues,
When a cartridge with a packed bed is found to have deteriorated in function, the cartridge with deteriorated function is taken out of the tank for regeneration, replacement, etc., but during this time, the insertion port of the water collection chamber from which the cartridge is taken out is used. is closed by the rise of the float, and the water to be treated does not directly flow into the water collection chamber.
The treatment is carried out using the cartridge remaining in the tank, and there is no need to interrupt the water flow treatment.

It is easy to automate the regeneration and replacement of the filling bed of such a cartridge so that it is carried out regularly and sequentially.

Furthermore, when granular or fibrous activated carbon is used as the filling bed of a cartridge for advanced treatment of various types of water, if the material of the vertical cylindrical body forming the cartridge is made of a heat-resistant material such as ceramics, it can be used outside the tank. Thermal regeneration can be performed directly without removing the activated carbon.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show a cartridge C of the present invention, which is a vertical cylindrical body with a circular or polygonal (triangular in the illustrated example) cross section. Several mesh or cross-shaped bags 3 filled with a desired filler 2 are housed in the bag 1 and supported by upper and lower water passage support plates 4, 4 each having a large number of water passage ports. Further, the lower part of the vertical cylindrical body 1 is formed into a small diameter straight body part 5.
A water inlet 6 is formed in the side wall of the vertical cylindrical body 1, and a lifting handle 7 is formed in the upper part of the vertical cylindrical body 1.

On the other hand, as shown in FIG. 3, the tank body 11 for accommodating such a cartridge C has a plurality of water collection chambers 14 formed at the lower part by a horizontal partition wall 12 and a vertical partition wall 13, each of which has a plurality of water collection chambers 14. Horizontal bulkhead 1 of water collection chamber 14
2 is opened with an insertion port 15 into which the straight body portion 5 of the lower part of the cartridge C can be inserted and removed, and the lower part of each water collection chamber 14 is communicated with a communication opening 16, and is connected to an outflow pipe or drain (not shown). ing.

Furthermore, in each water collection chamber 14, a float 17 made of synthetic resin having closed cells and having a high buoyancy that can be raised and lowered in water is provided, and when the cartridge C is inserted into the water collection chamber 14, As shown on the left side of FIG. 3, the float 17 is pushed down by the straight body 5, and when there is no cartridge C, the float 17 rises due to buoyancy and reaches the insertion slot 15, as shown on the right side of FIG. The insertion port 15 is closed by contacting a sealing material 18 provided around the periphery of the insertion port 15, thereby preventing water from flowing.

This float 17 may have any shape as long as it closes the insertion port 15.

Furthermore, as shown in FIG. 4, if a notch 19 through which water flows is provided in the outer peripheral area of the float 17 than the part in contact with the sealing material 18, the float 1
7 can be made larger in diameter so that the vertical partition wall 13 can guide the vertical partition wall 13 in raising and lowering the float 17.

Note that FIG. 5 shows an example in which the cartridge C has a triangular cross section and is disposed within the tank body 11 without any gaps.

When the cartridge C is installed in the tank body 11, as shown on the left side of FIG.
7 is in a depressed state, and the water flow during treatment passes through the packed bed of each cartridge C from above, becomes treated water, reaches the straight body part 5, and passes through the water inlet 6.
The water is collected in the water collection chamber 14 around the float 17 or through the notch 19, and flows out of the tank body 11 through the communication opening 16.

Now, in order to regenerate or replace a certain cartridge C, it is lifted up using the lifting handle 7 and taken out to the outside. At this time, as shown on the right side of Figure 3, the water collection chamber 1 from which the cartridge C is taken out
Float 17 in 4 rises due to buoyancy and comes into contact with sealing material 18 to close insertion port 15 and prevent water from flowing. Therefore, since the water flow is processed through another cartridge C, the regenerated or replaced cartridge C can be reinstalled without interrupting the water flow process when or after removing the cartridge C. There is no need to interrupt the water flow process.

Additionally, activated carbon treatment is becoming increasingly popular as a type of advanced water treatment technology. Granular activated carbon is often used as activated carbon, but recently activated carbon fibers with uniform pore distribution, excellent adsorption rate and adsorption capacity, and low water flow resistance have appeared. It is beginning to be applied to the removal of fine organic matter.

Such activated carbon fibers are fixed in the shape of a cloth, felt, or chop and subjected to water passage treatment, and it is advantageous to apply them to the present invention. That is, the filler 2 shown in FIG. 1 is filled into a cross-shaped activated carbon fiber bag 3 as, for example, a chop-shaped activated carbon fiber, and the vertical cylindrical body 1 is made of a heat-resistant material such as ceramic that can withstand temperatures of 1000°C or more. shall be.

In this case, the water flow process, removal and replacement of the cartridge C, etc. are the same as described above, but the regeneration of the cartridge C will be explained with reference to FIG. 6.

To regenerate the cartridge C in the tank body 11,
After being salvaged using the lifting handle 7 and washed outside the tank body 11, it can be rolled and rotated for centrifugal dehydration. This cleaned and dehydrated cartridge C is placed in the opening of the lower fixing plate 22 in the hot air regeneration furnace 21 as shown in FIG. Next, hot air is generated by the burner 23 under the lower fixing plate 22, and the activated carbon fibers are activated and regenerated by passing through the cartridge C together with the steam generated by the water that is simultaneously injected. The recycled cartridge C is placed into the tank body 11 again. As mentioned above, there is no need to interrupt the water flow process in the tank body 11 in this regeneration as well.

〔Effect of the invention〕

As described above, according to the present invention, adsorbents and other various fillers can be packed into cartridges in packed beds with arbitrary packing densities, so water flow resistance, adsorption amount, etc. can be adjusted as intended by the design. It also makes it easy to remove, recycle, replace, etc. any cartridge without interrupting the process.
Furthermore, automation using robots is easily possible.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an example of the cartridge according to the present invention, FIG. 2 is a plan view of FIG. 4 is a plan view showing an example of the float in the present invention, FIG. 5 is a plan view showing an example of cartridge arrangement, FIG. 6 is a system explanation showing an example of the cartridge regeneration process, and FIG. 7 is a plan view showing an example of the cartridge arrangement. FIG. 2 is a plan view showing an example of the arrangement of cartridges in the hot air regeneration furnace. C... Cartridge, 1... Vertical cylindrical body, 2... Filler, 3... Bag, 4... Water flow support plate, 5... Straight body part, 6...
Water inlet, 7... Pulling handle, 11... Tank body, 12...
Horizontal bulkhead, 13...Vertical bulkhead, 14...Water collection chamber, 15
...Insertion port, 16...Communication opening, 17...Float, 1
8... Sealing material, 19... Notch, 21... Hot air regeneration furnace, 22... Lower fixing plate.

Claims (1)

[Claims] 1. A cartridge having a vertical cylindrical body with a packed bed supported by upper and lower water passage supporting plates, and a straight body part with a water passage opening at the bottom of the vertical cylindrical body, and a partition wall at the lower part. A plurality of water collection chambers may be formed, an insertion port for inserting and removing the straight body portion of the cartridge may be opened in a partition wall on the upper surface of each of the water collection chambers, and the insertion port may be closed in each of the water collection chambers. A packed bed water treatment device characterized by comprising a tank body equipped with a float that can be raised and lowered.