JPH0632809B2 - How to purify tap water - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for treating tap water with an oil temperature for purification.

(B) Conventional technology Conventionally, tap water contains carcinogenic substances, for example, trihalomethane, and other substances generated when chlorine is added for disinfection. Therefore, purified water can be obtained by boiling the tap water. I was getting.

(C) Problems to be solved by the invention However, simply boiling the tap water cannot completely remove the vapor carcinogens, etc., so that the tap water can be purified more efficiently and reliably. The method of doing was desired.

(D) Means for Solving the Problem An object of the present invention is to perform tap water boiling with oil to efficiently and reliably separate water from carcinogenic substances and the like. It is to provide a purification method.

(E) Action In the present invention, purified water is obtained by mixing tap water with heated animal oil or vegetable oil or mineral oil, and recovering vapors evaporated from tap water. The heated oil comes into contact with the tap water evenly, and the specific gravity becomes lighter when the water evaporates due to the heated oil that comes into contact with the tap water. It rapidly increases with a specific gravity lighter than that of oil, and the separation action of water from carcinogenic substances and the like is carried out quickly and efficiently, whereby complete purification can be performed.

(E) Effect According to the present invention, not only can complete purification be achieved,
The time for purification is different from mere external heating of tap water, and since the heat is transferred to the inside of tap water by the oil directly mixed with tap water, water can be evaporated in a short time, and moreover,
Since the carcinogenic substance or the like does not dissolve in the used oil and remains in the solidified state, the oil and the carcinogenic substance or the like can be easily separated, and the oil used can be reused any number of times.

(G) Example To explain the example of the present invention in detail, first, 250 kg of tap water was put into a cooker containing 250 kg of preheated animal oil, and the temperature was reduced to about 80 ° C. for 10 to 15 minutes under a reduced pressure of 700 mmHg. If it is heated continuously at the temperature of, the stirring action will be performed when tap water is boiled, water will be evaporated from the tap water, and purified water will be obtained by collecting the evaporated steam. Is.

In the present invention, in the cooker, when heating tap water with heating oil, moisture, due to the difference in boiling point between impurities in tap water, moisture completely evaporates, further, carcinogenesis is an impurity in tap water. A volatile substance, for example, trihalomethane, is not evaporated and is left in the heating oil to recover a trace amount of impurities precipitated at the bottom of the cooker.

Therefore, Table 1 shows the experimental results of the tap water treated by the above method and the tap water before the treatment.

As described above, according to the above method, it is possible to remove trihalomethane contained in tap water by the time it cannot be measured.

In addition to animal oils, vegetable oils and mineral oils may be used, and such oils may be mixed with tap water in a pre-heated state, and then the tap water and oil in a mixed state may be heated to be evaporated.

It should be noted that heating at a temperature of about 80 ° C. under a reduced pressure of 700 mmHg causes the water content of the tap water to reach the boiling point quickly because of the reduced pressure condition even at a temperature of 80 ° C. The reason for this low temperature boiling point is that the deterioration phenomenon of oil is minimized and that carcinogenic substances in tap water are prevented from dissolving in oil due to high temperatures, and carcinogenic substances etc. are added to oil as much as possible. It does not dissolve and remains in the solidified state, and it also prevents deterioration due to dissolution of carcinogenic substances such as oil.

The decompression condition is such that the initial decompression is small and the subsequent decompression is large, except that it is carried out under a constant decompression condition from this part, so that the separating action between the carcinogenic substance in tap water and water is effectively performed. It is also possible to do so.

According to the present invention, the principle of separating purified water from carcinogenic substances and the like is used by the evaporation of water by boiling tap water, which is a general method for treating tap water. The process of evaporating water is not carried out simply by evaporating tap water externally, but it is characterized in that it evaporates water when mixed with oil. When stirring and mixing tap water with tap water, heating oil is evenly contacted with tap water, and when the heating oil in contact with tap water causes water to evaporate, the specific gravity becomes lighter, and the action of replacing water with oil is carried out and it is a carcinogen. The water dissolved together with the oil rapidly rises with a specific gravity lighter than that of the oil, and the action of separating water from the carcinogenic substance etc. can be performed quickly and efficiently, while the carcinogenic substance etc. In the oil with a higher specific gravity than Since the St. lees, water and carcinogens such as separations fast crab, and becomes smoothly done is that.

Thus, when the water evaporation is done quickly, it is possible to obtain purified water by collecting the evaporated water, the resulting evaporated water is completely separated from the carcinogens, The evaporated water does not contain any carcinogenic substances, etc., and it is possible to achieve complete purification in a state where trihalomethane, etc., which is attached during evaporation in the conventional method, is not attached at all, and further, the time for purification is simply water supply. Unlike external heating of water, the oil directly mixed with tap water can dissipate heat in the tap water and can evaporate water in a short time, and the oil used can be separated from carcinogenic substances. It is also easy to use, and the oil used can be reused any number of times. Thus, the method for purifying tap water of the present invention using oil can be said to be a completely epoch-making purification method that has never existed before. is there.

Claims (1)

[Claims] 1. A method for purifying tap water, characterized in that purified water is obtained by mixing tap water with heated animal oil, vegetable oil or mineral oil, and recovering vapor evaporated from tap water. .