JP2903359B2 - Water activator and its production method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water activator using naturally occurring lapilli and black soil and a method for producing the same.

[0002]

2. Description of the Related Art The treatment of industrial wastewater and domestic wastewater requires a large investment in the construction of sewage and purification facilities, and a large expense in its operation and maintenance. In addition, after purification, water is discharged while containing a germicide such as chlorine gas, so that there is a possibility that natural biological systems may be damaged.

[0003]

The problem to be solved by the present invention is to use natural materials to rapidly promote the natural food chain, and to use water tanks, pools, rivers, ponds, lakes and marshes, and industrial wastewater. Another object of the present invention is to purify domestic wastewater in a short time in a state as close as possible to the natural world.

[0004]

The water-active material according to the present invention is sterilized by an oxidizing treatment, and has an adsorbing property, an air dissolving efficiency and
A gravel obtained from a mixture of porous lapilli and black soil, which is suitable for a microbial medium ,
And / or a powdery material obtained by pulverizing a clay-like material.

[0005] The method for producing the water-active agent is characterized in that a mixture of lapilli and black clay is maintained in a copper sulfate solution at 80 ° C to 100 ° C while maintaining the PH value at 3.5 to 5.0. 1
The oxidation treatment is performed in 0 to 12 hours.

[0006] Black soil is a kind of volcanic ash soil and is a black or black-brown fertile soil containing humus, also known as black ash, onji, and ascidian. It is a natural material that widely exists in the natural world along with volcanic debris. It does not require any cost other than transportation.

In producing the water-activator of the present invention,
The proportion of lapilli to black soil is not a very important condition. However, in the case of mainly using lapilli depending on the application, in the case of using crushed black soil 20 to 40 with respect to lapilli 100 by volume ratio,
Mix 10 to 40 volcanic gravels with 100 black soils. When used as a mixture of lapilli and the above-mentioned black clay powder, the volume ratio of lapilli 100 to black clay 200 to 500 is used.
It is desirable to mix at a ratio of However, these are merely examples, and are not limited to these ratios.

The oxidation treatment is performed as follows. A copper sulfate solution in which 45 to 70 g of copper sulfate is dissolved in 10 liters of water,
1.5 parts by volume to a mixture of lapilli and black clay in an appropriate ratio
Add about 2.0 times and stir gently.
The oxidation treatment is performed by heating for 0 to 12 hours. During the oxidation treatment, the pH value is maintained at 3.5 to 5.0.

[0009] When the oxidation treatment is completed, a gravelly material covered with a clay-like material and a clay-like material are formed. The former becomes a solid gravel-like surfactant, and the latter becomes a powdery surfactant when air-dried. Further, when the powdery substance is solidified with a binder such as starch paste or seaweed, it becomes a solidified water activator. As the binder, it is preferable to use a natural material such as starch paste, but a chemical paste can also be used.

No special equipment is required for the oxidation treatment, and an iron pot is sufficient. In addition, there is no particular difference between the lapilli and black soil used as raw materials depending on the place of production as long as the natural state of the land is maintained.

[0011]

The oxidizing treatment sterilizes lapilli and black soil, and the black soil becomes clay-like with fine gaps. Therefore, the pebbly water surfactant has many small pores originally possessed,
The clay-like material that covers the gravel-like material exhibits a strong adsorptivity and an improvement in the efficiency of air dissolution, and provides a very good medium of microorganisms effective for water purification. In addition, clay-like powders and solidified ones have the same effect.

[0012]

Example 1 1 liter of tap water in a beaker
A gravel water activator oxidized by mixing black clay 30 with volcanic gravel 100 by volume ratio and adding 0.1% by volume ratio;
As a control, a sample to which nothing was added was allowed to stand for 72 hours, and then 1.6 g of sodium sulfite was added, and Do was added.
The value was set to 0, and an air of 0.6 L / min was sent to each beaker, and the change in the Do value was examined.

The Do value rapidly increased until one hour from the start of the air supply, and reached 9.5 in the former and 9 in the latter four hours after the air supply was stopped. After 8 hours, the former maintained 3.4 and the latter maintained approximately 0.9. Do 24 hours later
A value of 2.4 was confirmed. In the case of wild water (about BOD 15), almost the same change was observed.

[0014]

Example 2 One liter of industrial waste water (about BOD 150) was put into a beaker, and 0.3% by volume was put into the beaker. As a control test, only 1 liter of the industrial wastewater was placed in a beaker. Both were aerated for about 30 minutes and then left. After 2 hours, a difference in Do value of 1.5 from the control industrial wastewater occurred, and this difference was maintained after 24 hours.

The gravelly water activator is converted into domestic wastewater and activated sludge (about MLSS 1500) by industrial wastewater (BOD150).
) Can be secured and maintained after at least about 24 to 72 hours, compared to a case where the pesticidal water quality activator is not added.

[0016]

Example 3 About 1500 tons of water, about 0 to 5 m in depth, about 200 carps (average body length about 30 cm) inhabit, and the inflow water was a rainwater-only field pond, and the powder obtained by the oxidation treatment of Example 1 was used. The water activator was sprayed at 0.01% by weight based on the water amount. Five days after spraying, a circulation device having a capacity of 1 t was installed, and a gravel water activating agent similar to that of Example 1 having a volume ratio of about 0.003% with respect to the water amount was installed in the circulation device. On the shelf. Then, while sending 20 l / min of air into the circulation device, the pump is used to pump 270 l / min.
The water from the minute pond was sent into the circulation device.

The following results were obtained 30 days after the start of pump operation. However, parentheses indicate raw water, and the unit is mg / liter. The transparency is 10 cm in raw water and 82 cm after 30 days.
Met.

BOD 2.2 (16) COD 3.2 (15) SS 2.4 (35) Total nitrogen 0.46 (3.2) Total phosphorus 0.15 (0.15)

Changes in microorganisms inhabiting this pond are as follows. Species Raw water 30 days later Green algae and diatoms Very much Very little Oechtis genus Very much Very little Biwamushroom many Very little Senedestis Many Very little Spherotils Many Very little Paramecium Usually Very little Borticella Very little Very low Potterio dendron Very low Normal Rotalia Very low Normal Firodina Very low Normal Monostyra Very low Normal Rotifer Very low Normal Daphnia Low Normal Other Very low Very high

The water activator of the present invention comprises a pet aquarium,
It is also effective in purifying water in commercial aquariums, but the following characteristics were observed in pond purification. That is, 24 hours after the use of the water-active agent, the inhabitation of Balticella can be confirmed without fail, and a wide variety of protozoa or metazoans inhabit in a short period of time. It is convenient to use a solidified water activator for purification of the pet tank.

Also, the number of microorganisms that are said to be the cause of red tide and the like is extremely reduced. The PH value is around 7.0, and the Do value is 4 to 5, which are all stable. Since the water environment was further improved, active spawning conditions of fish were observed, and water spoiling and other small animals were confirmed.

[0022]

[Embodiment 4] A treatment tank is installed in which the overflow of the pretreatment tank flows into the aeration tank, the overflow of the aeration tank flows into the settling tank, and the treated water flows out of the settling tank. The capacities are 12 liters, 60 liters and 6 liters, respectively.

First, 60 liters of activated sludge was added to the aeration layer,
0.18 liter (0.3% by volume based on activated sludge)
And the intermittent aeration is performed every 12 hours for about 100 hours.

As a result, an activated odorless odorless sludge having a thick ciliate, rotifer, and other biological layers, a large amount of dissolved oxygen, and odor was obtained. This activated sludge has good sedimentation properties and does not generate bulking or the like.

About 6 liters of this activated sludge is put into the pretreatment tank, and the amount of industrial wastewater having a BOD of about 550 is gradually increased from 20 liters on the first day, and 80 liters on the seventh day, and 120 liters on the 8th day and thereafter, for 8 hours each. Into the pretreatment tank. Then, 8 l / min air is always sent to the pretreatment tank and 16 l / min air is sent to the aeration tank.

From the eighth day, 120 liters of industrial wastewater is
As a result of the daily charging for two months from May to June 1993, the following good treated water was obtained. However, the unit is mg / liter. Transparency is from 9cm to 1cm of raw water
After 100 months, it became 100 cm or more.

[0027]

The changes in microorganisms that live in the sludge in the aeration tank are as follows. Type Raw sludge Sludge after 30 days Alcera Very much Low Aspidica Many Normal Paramecium Many Very low Rotalia firodina Normal Normal Balticella Normal Normal Zo-tanium Normal Normal Litonos Low Normal Polar bear Low Normal Ameba Very low Normal Nice Very low Ordinary shyatospira Very low Ordinary co-protease Very low Ordinary plateias Very little Ordinary very little Ordinary Prodton Very little Ordinary Lithnos Very little Ordinary Other Very little Very much

[0029] Further, industrial wastewater with a BOD of about 3500
Even when the treatment is performed using the treatment tank in which the amount of air blown into the pretreatment tank and the aeration tank is doubled as described above and the input amount of the gravel-like water activator is tripled, almost how good treated water is obtained. Was done. The results are shown below (unit: mg / liter).

[0030]

Escherichia coli not found in the raw water was 12 cells / ml after 40 days, and the transparency was 5 cm in the raw water and 4 cm / ml.
0 days later, it was 100 cm or more.

The treatment of industrial wastewater has the following characteristics. An extremely small amount of air is required despite the high concentration of wastewater and sludge. The PH value of the aeration tank is
Although it is relatively high at 7.5 to 8.3, it is 7.2 in the sedimentation tank.
It is stable before and after, and the Do value during raw water input is 8.3 ~
It changes to about 0.5, but recovers rapidly about 2 hours after the completion of charging.

Moreover, high concentration sludge (MLSS10000)
Nevertheless, the sedimentation was almost good, with 63 minutes after 30 minutes.
0cc, 490cc after 60 minutes, 330c after 120 minutes
c, 300 cc after 180 minutes.

The microorganisms in the sludge inhabit a wide variety of species, from protozoa to metazoans, and when about 24 hours have passed since introduction,
We can confirm the inhabitation of Balticella. No odor is generated during the sewage treatment, and the odor of the raw water is removed so as not to be felt in the pretreatment layer.

In the treatment of industrial wastewater, BOD, CO
Although it is natural to secure a high removal rate of D and obtain stabilized treated water, it has been said that it is difficult to remove nitrogen and phosphorus by the conventional activated sludge method. However, it was confirmed that by adding the water activator of the present invention, a high removal rate of nitrogen and phosphorus as well as BOD and COD can be obtained. Also, it was confirmed that E. coli could be released at a low value without chlorination.

The excess sludge settled in the treatment tank has conventionally been treated as fertilizer or industrial waste after drying treatment and dehydration treatment. However, surplus sludge using the water activator of the present invention is reduced by about 40% in 5 days when 6 l / min of air is sent per liter, which makes the treatment easier.

It is needless to say that the water activator of the present invention is also effective in the treatment of domestic wastewater and miscellaneous wastewater of domestic waste and manure.

[0038]

The present invention can be obtained only by oxidizing lapilli and black soil in the natural world, and does not require any special treatment equipment. Tap water, water tanks, pools, rivers, ponds, lakes and marshes, domestic wastewater, Industrial wastewater can be purified efficiently and at extremely low cost.

Furthermore, since the treatment is carried out by using microorganisms, there is no need to disinfect with a chemical after the treatment, and even if the treated water is discharged as it is, there is no adverse effect on nature.

Claims (3)

(57) [Claims] 1. Sterilization by oxidation treatment, adsorption and air solubility
It improves the dissolution efficiency and is suitable for microbial culture media.
A water activator comprising a pebble obtained from a mixture of dried porous volcanic pebble and black soil, and / or a powder obtained by pulverizing a clay-like substance. 2. The water activator according to claim 1, wherein the powder is solidified with a binder. 3. A mixture of porous lapilli and black soil,
In a copper sulfate solution at 0 ° C. to 100 ° C., the pH value was 3.5.
A method for producing a water-active agent, wherein the water-active agent is subjected to an oxidation treatment for 10 to 12 hours while maintaining the same at a value of 5.0.