JPH05192566A - Light rock, light gravel or light sand having deodorizing and water cleaning function - Google Patents

Abstract

PURPOSE:To obtain a light rock, a light gravel or a light sand (hereinafter referred to as a 'light gravel') having deodorizing and water-cleaning functions prepd. by utilizing effectively the porous light gravel formed from eruption of a volcano. CONSTITUTION:The title light gravel is constituted by inpregnating a porous light rock, light gravel or light sand formed from eruption of a volcano with an acidic additive wherein a lot of metal salts and non-metal salts obtd. by dissolving vermiculite derived from a weathered mica-type mineral in an inorg. acid water soln. are main ingredients.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light gravel having a deodorizing and water purifying effect that effectively utilizes porous light rocks, light gravel or light sand (hereinafter referred to as light gravel) generated by a volcanic eruption. Is.

[0002]

2. Description of the Related Art Conventionally, for purification of water, a method of using a sand filter in which a filter is filled with sand, stones, etc., a method of using an activated sludge method, or a chemical agent such as a coagulant is added. The method was known. However, the activated sludge method is used for the purification of industrial wastewater having a high degree of pollution because it cannot be completely purified by a method of adding a sand filter or a coagulant. Although it has been pointed out that the activated sludge method has many drawbacks, there is no effective alternative to the method until now, so that the activated sludge method is unavoidably adopted.

On the other hand, as a precipitation coagulant capable of precipitating and coagulating organic substances dissolved in wastewater, various kinds of metal salts and nonmetal salts obtained by dissolving vermiculite weathered with mica-based minerals in an aqueous solution of an inorganic acid. An acidic additive consisting mainly of is known, which was epoch-making in that it can precipitate and aggregate organic substances. There is a problem in that it is difficult to calculate and adjust the appropriate amount of the additive to be used and the cost becomes high. Therefore, at present, it is not used much in industry.

The above-mentioned acidic additives have been known to purify and deodorize human excrement, but since they are liquids, they are applied to livestock such as cattle and pigs, and pets such as dogs and cats. Since it was inconvenient to do this, it is not actually used much in industry.

On the other hand, for example, eruption of a volcano such as Pinatubo volcano produces a large amount of light rocks, light gravel, light sand, etc., but no appropriate proposal has been made yet for their effective use. The reality is that there is a problem with the treatment of such light gravel.

[0006]

SUMMARY OF THE INVENTION The present invention effectively utilizes light gravel, etc., which is in trouble in the treatment generated by the eruption of the above volcano, from which waste water, lake / marsh water, shrimp
Deodorizing and water purifying effects that can efficiently purify water in aquaculture ponds, hot water in a circulating bath, etc., and can easily purify and deodorize human waste of animals such as cows, pigs, dogs, and cats. The purpose is to provide the light gravel and the like.

[0007]

Means for Solving the Problems The present inventor has noticed that the light gravel and the like produced by the eruption of the volcano are porous and have the property of storing a large amount of water. As a result of diligent research on effective use, these light gravel and the like are dipped in acidic additives mainly composed of various metal salts and non-metal salts obtained by dissolving vermiculite weathered with mica-based minerals in an inorganic acid aqueous solution, By absorbing the acidic additive in the open-celled body such as light gravel, the liquid acidic additive is solidified, and the contact area with the object to be treated becomes extremely large, so an extremely effective deodorizing and water purifying action. It has been found that light gravel and the like having the above can be obtained, and the present invention has been achieved.

That is, according to the present invention, a porosity produced by eruption of a volcano is an acidic additive containing various metal salts and non-metal salts as main components, which is obtained by dissolving vermiculite weathered with mica-based minerals in an aqueous solution of an inorganic acid. It is characterized by being impregnated with high quality light gravel.

To produce the acidic additive used in the present invention, vermiculite weathered with a mica-based mineral (preferably black mica) or soil further weathered with this vermiculite is added to an aqueous solution of an inorganic acid (eg hydrochloric acid, sulfuric acid). Just dissolve it. For example, vermiculite weathered with biotite and dilute hydrochloric acid diluted with concentrated hydrochloric acid to 1/2 to 1/4 are mixed in equal parts by weight with stirring and reacted at 20 to 30 ° C. for 1 week while stirring. By filtration, an acidic additive based on hydrochloric acid can be obtained. At this time, if the reaction temperature is increased, the reaction time can be shortened. It has been confirmed that this acidic additive does not contain harmful metals such as arsenic, lead, mercury, hexavalent chromium and cadmium. As a result, it can be carried out without any fear of the harmful metals being mixed in the purified water and the absorbing action by animals and fish when applied to deodorize human waste.

The light gravel and the like having the deodorizing and water purifying effect of the present invention can be produced by immersing the porous gravel and the like generated by the eruption of a volcano in the above-mentioned acidic additive and letting it stand overnight. . The acidic additive thus obtained can be used as it is or after drying to remove water after draining.

The light gravel or the like having a deodorizing and water purifying action of the present invention can be used by purifying waste water and the like or purifying hot water in a circulating bath by filling it in a filter device. The light gravel and the like of the present invention are porous, and since the acidic additive is impregnated in the open cells of the porous light gravel and the like, the contact area with wastewater and the like is extremely increased, It responds to an appropriate amount, and can therefore very effectively purify wastewater and water such as bath water.

In the case of purifying water in lakes, swamps, ponds, etc., light gravel or the like having a different specific gravity can be directly added for purification. Due to the difference in specific gravity, the thrown light gravel and the like are evenly dispersed from a certain water level to the bottom, and are in a state of being suspended in water or at the bottom of the water. It will be in the same state as it caused, promoting the reproduction of purification microorganisms,
It can extremely effectively purify the entire water of lakes, swamps, ponds, etc. The light gravel and the like of the present invention include shrimp, flounder,
It is suitable for purifying water from aquaculture ponds such as Thailand and eels. These aquaculture ponds cause continuous crop failure after about 2 years due to the frequency of use and overcrowding. Currently, after removing water from the aquaculture ponds every 1 to 2 years and removing filth that has settled to the bottom, , Lime, etc. are sprinkled, dried, and replaced with new water, but if light gravel etc. with a different specific gravity difference according to the present invention is put in, the water in the aquaculture pond will be replaced in order to decompose the generated waste. It has been confirmed by experiments that the continuous cropping disorder can be effectively prevented without doing so.

The light gravel and the like of the present invention have a deodorizing effect of deodorizing human excrement. Therefore, when the light sand of the present invention is laid to a certain thickness in a breeding ground for cattle, horses, pigs, etc. or a breeding box for dogs, cats, etc., when these animals urinate, they are purified as they are. When stools are deodorized and stools are made, if stools are sanded, the stools will be deodorized and have a small volume, so that the living environment of these animals can be kept in a clean and beautiful condition at all times.

[0014]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples. Example 1: Production example of soil conditioner A porous light rock, light gravel, and light sand produced by the eruption of Pinatubo volcano were classified by screening. Each of the particles having the same size was separately charged into an acidic additive using sulfuric acid as an inorganic acid, left to stand for a whole day and night, drained, and air-dried. Soil conditioners of the present invention were obtained, which consisted of porous light rocks, light gravel and light sand of various sizes. Example 2 Light gravel and the like having different sizes obtained by the method of Example 1 were stacked and packed in a sand filter so that the particle size became smaller toward the bottom. From the treated liquid inlet of the lid at the top of the sand filter, the waste liquid of the chemical factory, which had been colored and polluted with COD1000 black brown, was introduced. After stirring for 1 hour, 10 liters of the waste liquid was precipitated and separated, and the filtrate was neutralized with lime and then filtered.
The filtrate was colorless and transparent, and the COD value was reduced to 7. Since this filtrate has passed all the wastewater treatment standard items, it can be discharged to the river as it is.

Example 3 A shrimp aquaculture pond that had to be rested for two years,
Light gravel and the like having different specific gravities and sizes obtained in the above Example 1 were added. It was confirmed that even if the aquaculture density was increased, no continuous cropping disorder was observed, the useful microbe rotifer breeds 10 times or more than usual, the feed effect of shrimp was increased, and the aquaculture period was shortened. Although the turbidity of the water in the aquaculture pond initially reached an extreme level, it became more transparent after one week, and the amount of dissolved oxygen increased to about three times the normal level. Example 4 The light gravel and sand of the present invention were laid in a pig hut at a height of 5 cm,
Pigs were raised. When pigs were urinated, they were immediately absorbed by porous light gravel, cleaned, and deodorized. When pigs had stools, when sand was placed on the stools, the stools became odorless and decomposed into small solid granules. In this way, the pigs could be kept clean without scattering bad odors in the vicinity. The light gravel / sand that deodorized human waste was replaced with new light gravel / sand every two months. Light gravel and sand that decompose and deodorize human waste are used as odorless organic fertilizers for crops.
It showed very good growth promotion and harmful bacteria elimination action.

[0016]

[Effect] As described above, according to the present invention, the light rocks, light gravel, light sand, etc. generated by the eruption of a volcano, which was difficult to dispose and remove, can be effectively used, and the acidity that has been conventionally applicable only as a liquid Since the additive can be applied as a porous solid, it is extremely effective in eliminating the odor and purification of human excrement in livestock, and by adding it directly to the cultured fish pond, the entire cultured fish pond is acidified. It is possible to maintain an appropriate and uniform concentration of the additive, and to effectively purify water, so that it is possible to effectively prevent continuous crop failure, and when it is used by filling it in a sand filter device, Since the quality is high, the contact area is extremely large, and therefore, a very effective sewage purification action can be exhibited.

Claims (1)

[Claims] 1. A porous light alloy produced by eruption of a volcano by adding an acidic additive mainly composed of various metal salts and non-metal salts obtained by dissolving vermiculite weathered with mica-based minerals in an inorganic acid aqueous solution. Light rock, light gravel or light sand having deodorizing and water purifying properties, characterized by being impregnated into rock, light gravel or light sand.