JPS6028892A - Water making process - Google Patents

Abstract

PURPOSE:To obtain water having approximately equal quality to natural mineral water by passing raw water through alternately heaped layers or a mixture consisting of humic substance and a large amt. of activated silicate and allowing org. components to react with inorg. components. CONSTITUTION:Raw water is passed through alternately heaped layers or a mixture consisting of humic substance consisting essentially of humus contg. precursor of humus or consisting essentially of humic precursor contg. humus, and inorg. component contg. a large amt. of activated silicate e.g. volcanic ash consisting of andesite or rhyolite, and fine powder of vitreous volcanic product such as pumice, etc. Thus, several polycondensation reaction or similar reactions including combination and polymerization between organic components in the raw water and phenol group exposing compds. as humic precursor in the humic substance, oxydase such as phenol oxydase as catalyst, and quinones as oxidized product of phenols, are caused.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for supplying raw water from rivers, lakes, etc., and more specifically, to a method for producing fresh water in which organic and inorganic components contained in raw water are removed through a humication reaction.

Traditionally, raw water has been widely used to sand filter raw water to remove suspended solids, then undergo activated carbon treatment to remove organic components from the raw water, and then chlorine sterilization.
However, this method has disadvantages, such as the use of activated carbon being economically expensive and the chlorine sterilization imparting a bitter taste to the water produced.

This invention was made in view of the above circumstances, and aims to provide a method for producing water economically and without bitterness from raw water using a process similar to the natural water production process. The feature is that by passing the raw water through an alternating layer or mixture of humic plants and a substance containing a large amount of activated silicic acid, the humic plant, the substance containing a large amount of activated silicic acid, and the raw water are separated. The process involves inducing a humic reaction with the soluble components of raw water, removing organic and inorganic components from the raw water, and sterilizing it to produce water that is similar to natural mineral water.

Here, humus refers to humus mixed with humus precursors, or humus precursors mixed with humus, and humus precursors include phenolic compounds and oxidizing enzymes such as phenol oxidase, Alternatively, it contains quinones which are oxides of phenolic compounds, mixtures of organic acids, polyesters, amino acids, etc., and some polycondensation products thereof.

Further, the substances containing a large amount of activated silicic acid include fine powder of volcanic glass such as andesite, rhyolitic volcanic ash and pumice, clay minerals, zeolite derived from green taff, etc. Examples include rocks (based on minerals) and finely powdered diatoms.

These substances are even more effective because they contain a large amount of activated silicic acid and metals such as iron. Alternatively, it may be a mixture of active silicic acid, which is an artificial product, and a metal such as iron in approximately the same proportion as that contained in the natural product.

In this case, the water production effect can be achieved without mixing metals such as iron, but water that is closer to natural mineral content can be produced by mixing metals.

The blending ratio of the humic plant and the substance containing a large amount of activated silicic acid in the alternating layers or mixture is as follows: humic plant 1
It is preferably 0% or more and 90% or less, and the lower the blending ratio of humic plants, the less frequently the substance containing a large amount of activated silicic acid for water generation must be replaced. Conversely, the higher the blending ratio of humic plants, the more frequently the substance containing a large amount of activated silicic acid for water generation will be replaced, and the more the removal function of dissolved components in raw water will improve. Therefore, it is desirable to change the blending ratio appropriately depending on the seed koji 1 in the raw water.

When raw water is passed through a material containing a large amount of activated silicic acid and a humic plant that is alternately layered or mixed at an appropriate blending ratio in this way, compounds with exposed phenol groups as humic precursors in the humic plant are absorbed. and oxidizing enzymes such as phenol oxidase as a catalyst, or quinones which are oxides of phenolic compounds, as well as amino acids, polysaccharides, etc., and organic components contained in the raw water to be thrown into the raw water. cause a reaction. When a substance containing a large amount of activated silicic acid further participates in this reaction, a polycondensation reaction for humification takes place. This polycondensation reaction tackles the polycondensation of the substances present in the reaction system for humification, not selectively but all at once. Therefore, inorganic components such as chlorine, nitrogen, and phosphorus contained in the raw water are also efficiently removed as the polycondensation reaction progresses.

In addition, in the polycondensation reaction for humification in the presence of the humic precursor and humus, the sterilization effect against harmful bacteria such as Escherichia coli also acts, so if the quality and quantity of humus are optimal, conventional methods can be used. There is no need to perform chlorine sterilization as in

The contact time between raw water and an alternating layer or mixture of humic plants and a substance containing a large amount of activated silicic acid content varies depending on the type of raw water, but in order to rapidly advance the polycondensation reaction for humification, In principle, it is preferably several minutes, but in practice, it is preferably 30 minutes or more.

When humification progresses rapidly in this way, the organic and inorganic components in the raw water are efficiently removed by the above reactions and actions, and the sterilization action also works to complete water production. When humus formation has progressed considerably and the water distribution function begins to decline, the water distribution function will be improved again by removing the formed humus and adding a substance containing a large amount of activated silicic acid. The extracted humus can be effectively used as a polycondensation agent, a good humus soil, etc.

Furthermore, when the method of the present invention is applied to seawater as raw water, the desalination effect from the seawater accompanying the humication reaction becomes greater, so that it can be fully used as a method for treating seawater.

As is clear from the above explanation, according to the water production method of the present invention, in addition to treating raw water by inducing a humication reaction, which is similar to the formation of natural groundwater, Since the inorganic salts contained in the substance containing a large amount of silicic acid dissolve into the raw water in an appropriate amount, water that is very similar to mineral water formed in nature is formed.

In addition, if the quality and quantity of humus are optimal, a great sterilization effect can be obtained, eliminating the need for chlorine sterilization and producing high-quality water without bitterness, making it extremely useful. becomes.

Next, an example of the method of this invention will be described.

Raw water - B OD concentration 30-50 ppm a Substance containing a large amount of activated silicic acid - Zeolide and diatomaceous earth l:
1 mixture.

1 of the above-mentioned activated silicic acid-rich substances and humic plants:
2 mixture, add 11 of the above raw water per 100g of the mixture.
It was transmitted at a rate of . The contact time between the two at this time was 10 minutes.

As a result, water with a BOD concentration of 3 to 4 ppm was obtained.

No E. coli was detected.

Patent applicant Mamoru Naimizu Agent: Patent attorney Mihiko Watanabe

Claims (1)

[Claims] By passing the raw water through an alternating layer or mixture of plants and a substance containing a large amount of activated silicic acid, organic and inorganic components in the raw water are converted to humic plants and a substance containing a large amount of activated silicic acid. A water production method characterized by removing water by reacting with.