JPH0576872A - Water treatment device - Google Patents

Abstract

PURPOSE:To provide a water treatment device having simple constitution and capable of preventing the propagation of bacteria or various bacteria in its filter bed. CONSTITUTION:In a water treatment device wherein a filter bed 3 for filtering water to be treated is provided to the passage, communicating with the inlet 2a of water to be treated and an outlet 2b, gold having a shape permitting water to be treated to pass is arranged to the passage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment device for purifying water to be treated.

[0002]

2. Description of the Related Art Cleaning of water to be treated in a water treatment apparatus is performed by a filter bed made of, for example, activated carbon. On the other hand, however, the inside of the filter bed often serves as a breeding site for microorganisms and various bacteria, and for example, small microorganisms and various bacteria immediately after division during breeding may flow out, which may be a factor for inhibiting the purpose of treatment. Such things include pure water used for manufacturing pharmaceuticals, reagents, ultrapure water used for manufacturing electronic devices,
This is a particular problem when producing drinking water or the like, and in this case, a more sophisticated polisher is required.

As a method for preventing the growth of microorganisms and other bacteria in the filter bed of the water treatment device, (1) a filtration sterilization method using a microfiltration membrane or an ultrafiltration membrane, (2) sterilization by ultraviolet rays or radiation Method, (3) Sterilization method by heating or chemical treatment, etc.,
Both have advantages and disadvantages, and are not economically or functionally sufficient.

In the domestic water purifier, the activated carbon filtration method is usually adopted to remove sodium hypochlorite, which causes a odor of chlorine, but it is necessary to completely remove sodium hypochlorite. There was a contradictory problem that the more the microorganisms and other germs grew, the more easily they grew. Attempts have been made to solve this problem by using a large amount of water, an osmosis membrane, reverse osmosis, unglazed filtration, ultraviolet sterilization, chemical addition, etc., but this was not sufficient.

Propagation of microorganisms, germs and the like in the filter bed of the water treatment device is relatively less problematic when the water treatment device is continuously used, but breeds when it is discontinuously used. Since it will give a period, there is a big problem, and in the current situation where there are many discontinuous uses in terms of water resources and water treatment costs,
It is an even bigger problem.

On the other hand, the sterilizing power of gold, silver and copper has been known for a long time, but it has not been effectively used for water treatment equipment. For example, gold is mainly combined with other metals such as copper in order to improve the degree of processing as seen in gold foil. Therefore, when such gold is used in a water treatment device, For example, copper ions and copper oxide have flowed out to hinder the purification of the water to be treated. When silver is used, silver ions and silver oxide flow out, causing the same problem.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a water treatment device having a simple structure and capable of preventing the growth of microorganisms and various bacteria in the filter bed of the water treatment device.

[0008]

According to the present invention, there is provided a water treatment device comprising a filter bed for filtering water to be treated, which is provided in a flow path leading from an inlet of the water to be treated to an outlet thereof. It is characterized in that gold of an acceptable form is provided.

[0009]

The gold sterilizes and sterilizes the water to be treated flowing in the water treatment device, thereby preventing the growth of microorganisms and other bacteria in the filter bed.

[0010]

EXAMPLES Samples A to D of the following water treatment device were prepared and tested. The gold used had a purity of 999.9 mint stamped by the Mint Bureau, and the form used was a round cut with a thickness of about 0.1 mm. The water treatment device used was of the type shown in FIG. Specifically, FIG. 1 shows a sample C.
In FIG. 1, 1 is a container body, 2a is an inlet of the container body 1, 2b is an outlet, 3 is a filter bed, and 4 is a packing for holding gold. As shown in FIG. 2, the packing 4 is composed of an upper frame 4a, a lower frame 4b, and two saran nets 4c.
It is held by b. The experiment was conducted as follows. That is, about 1 m ^{3 of} tap water was flowed, and the number of general bacteria after treatment (cells / ml) was detected immediately after the treatment and after an appropriate number of days.

Sample A: one having only a filter bed made of 1000 cc of activated carbon, sample B: a filter bed made of 1000 cc of activated carbon, and 1 g of gold retained on the upper, middle and lower portions of the filter bed by a saran net. Sample C ... a filter bed consisting of 1000 cc of activated carbon, and a saran net held at the upper and lower parts of the filter bed, respectively.
equipped with g of gold rounding, Sample D ... 1 in a filter bed consisting of 1000 cc of activated carbon
equipped with a round cut of g,

The results are shown in Table 1.

[0013]

[Table 1]

As can be seen from these results, the growth of microorganisms and other germs in the filter bed of the water treatment device was reduced in the samples B to D provided with gold as compared to the sample A not provided.
Furthermore, the more gold is provided in many places, the lower it is.

[0015]

[Other Embodiments] The form of the gold to be provided is not limited to cut-through, and if the form allows the passage of the water to be treated, for example, lumps, plates, foils, threads, fabrics, punches, It may be in the form of a film or a filter.

[0016]

As described above, according to the present invention, in the water treatment device provided with the filter bed for filtering the water to be treated in the flow passage leading from the inlet of the water to be treated to the outlet, Since the gold that allows the passage of the water to be treated is provided, it is possible to effectively prevent the growth of microorganisms, germs and the like in the filter bed of the water treatment device. Moreover, since only the gold is arranged,
The configuration is simple.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a water treatment device of the present invention.

FIG. 2 is an exploded perspective view of the packing used in FIG.

[Explanation of symbols]

 2a inlet 2b outlet 3 filter bed 4 packing 5 gold

Claims (1)

[Claims] 1. A water treatment apparatus provided with a filter bed for filtering water to be treated in a flow path from an inlet to an outlet of the water to be treated, wherein the flow path allows passage of the water to be treated. A water treatment device characterized in that gold is provided.