JPH0448999A - Purifying treatment agent for putrefactive substance - Google Patents

Abstract

PURPOSE:To suppress the generation of pathogenic bacteria or a harmful insect and to eliminate the pollution of soil or underground water or the mixing with a harmful component by preparing a purifying treatment agent of a putrefactive substance consisting of magnesium oxide and natural zeolite as main components. CONSTITUTION:A purifying agent based on magnesium oxide and natural zeolite is brought into contact with a putrefactive substance to together perform the fixation or stabilization of the acidic component in the putrefactive substance and the acceleration of the decomposition, chemical reaction and adsorption of lipid or the like and the exuded water or transmitted water from the putrefactive substance is purified. Magnesium oxide desirably has large voids, that is, low apparent specific gravity, a highly developed pore structure and a large specific area. When this treatment agent is used, the moisture in the putrefactive substance is absorbed and the mean water content thereof lowered and the putrefactive substance is prevented from becoming a lumpy or particulate state by natural zeolite and, as a result, the handling such as transport or transshipment of the treated matter becomes easy.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is directed to insecticidal, sterilizing, fixing and stabilizing acidic components of slurry or slurry containing putrefactive and fermentable substances, and When dumping, burying, or restoring the above substances to the soil by promoting decomposition, chemical reaction, and adsorption of lipids contained in the substances.

This invention relates to a purifying agent for permeable substances that purifies the quality of permeated water.

(Prior art and its problems) A large amount of livestock manure generated in pig farming, poultry farming, or breeding farms, surplus sludge from human waste treatment facilities or sewage treatment facilities, and various food and drink products such as tofu and shochu. , the production of fish and shellfish, and waste from processing plants, which are mainly slurry-like or mud-like putrefactive substances, are classified as wIIIL.
The solid-liquid content is often dumped into storage ponds and left to natural treatment through underground seepage.

In such cases, purification agents are used for the stored putrefactive substances from the standpoint of hygiene and the impact on groundwater and soil. Conventional treatment agents of this type are composed of a special grouper, an enzyme, a flocculant, slaked lime, an insecticide, a fermentation accelerator, a plant extract, or a plant oil, either alone or in appropriate combinations.

However, these treatment agents are either ineffective or insufficient, or take a long time to become effective.
In addition, especially when chemicals are used, there are problems in that they have a negative impact on the ecosystem and are expensive and expensive to process.

In view of these points, the present invention is an economical and fast-acting purification treatment that suppresses the outbreak of pathogenic bacteria and pests, does not contaminate soil or groundwater, or mix harmful components into them. The aim is to provide drugs for

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention uses magnesium oxide and natural zeolite as main components, and upon contact with a putrefactive substance, acidic components contained in the putrefactive substance are It is characterized in that exudate water and permeate water from the above-mentioned putrefactive substances are purified by fixing or stabilizing the above substances, promoting decomposition with lipids, chemical reaction, and adsorption.

Magnesium oxide may be in the form of powder or fine particles, and may contain about 15% or less of calcium oxide, calcium hydroxide, calcium carbonate, magnesium hydroxide, etc. in total. These impurities are not included in the main raw materials and are usually produced when magnesium oxide is produced from seawater or rocks. Further, the magnesium oxide that can be used in this treatment agent preferably has a large porosity, a low apparent specific gravity, and a highly developed pore structure with a large specific surface.

Magnesium oxide exhibits alkalinity when dissolved in water, and quickly forms salts with phosphoric acid and fatty acids in putrefying substances, fixing and stabilizing these acidic components and preventing pests, flies, etc. It prevents the laying of eggs and the occurrence of insects, and also stops or suppresses putrefaction and fermentation. In addition, this magnesium oxide reacts with the lipids and oils contained in putrefying substances and quickly decomposes them, reducing the viscosity of putrefying substances, making purification easier and faster. It also has a function.

Further, in conjunction with the above-mentioned action, magnesium oxide reacts not only with the above-mentioned fatty acids but also with the sulfur compounds in the putrefactive substances, and has a deodorizing effect on the strong malodor generated by the putrefactive substances. Furthermore, by immobilizing the above-mentioned phosphate ions, the residual substance after treatment can be used as an effective fertilizing ingredient.

Natural olide physically adsorbs lipids and oils decomposed by magnesium oxide in the pores as described above, promotes a decrease in the viscosity of the perishable material 11, and purifies the permeated water.

Also, among the malodorous components generated from putrefying substances, ammonia is selectively adsorbed and deodorized.

Natural zeolite that adsorbs stiff magnesium and ammonia not only becomes a source of magnesium and nitrogen when it is returned to the soil after purification treatment (it increases CEC (l ion exchange capacity) and is used as a soil conditioner). I can do it.

Both magnesium oxide and natural zeolite are inexpensive and easily available.

Zinc sulfate or zinc sulfate and aluminum sulfate may be added to this treatment agent.

Both additives have bactericidal and insecticidal effects, and can also be expected to have a cleaning effect. In addition, these substances are both amphoteric compounds and quickly cause chemical reactions with both acids and bases, so they react with multiple components such as ammonia and amines contained in perishable substances, resulting in faster and more reliable deodorization. is possible. Zinc sulfate also reacts rapidly with hydrogen sulfide, fatty acids, etc., making reliable deodorization possible.

Quicklime and slaked lime can also be used together with this treatment agent. Since both are strongly alkaline, they have a bactericidal and insecticidal effect on putrefying substances, but quicklime in particular reacts violently with the moisture contained in putrefactive substances, forming a calcium-containing complex organism. After treatment, a slow-acting substance with high fertilizing properties is obtained. The addition of lime is more effective when the putrefying substance is strongly acidic, and may be used as a pretreatment agent in some cases.

Furthermore, activated carbon may be added to the various processing agents described above. Activated carbon, like natural zeolite, adsorbs lipids and oils decomposed by magnesium oxide, allowing the treatment agent to purify putrefactive substances more quickly and reliably. Furthermore, by adding activated carbon, organic compounds can be selectively adsorbed, thereby further improving the deodorizing ability of the treatment agent. The activated carbon may be in any form such as granular products, molded products, or powder.

If necessary, an aromatic substance consisting of various fragrances such as eucalyptus oil, jasmine, lemon culvert, and cedar may be added to the treatment agent.

This treatment agent basically consists of only magnesium oxide and natural olide, but other components may be added depending on the type of putrefactive substance and the properties of the components. For example, for excess sludge in human waste treatment or sewage treatment facilities, it is desirable to add zinc sulfate, aluminum sulfate, and activated carbon. Additionally, calcium oxide may be added to further reduce costs. It is recommended to add a relatively small amount of activated carbon to cow or pig manure, and if sterilization and insecticide are particularly required, it is desirable to further add zinc sulfate.

Zinc sulfate is added to chicken manure as needed.

Furthermore, for waste from food and beverage manufacturing and processing factories, various constituent components are used in combination depending on the perishable substance.

When this treatment agent is used, it absorbs moisture in perishable materials, reducing the average moisture content of the perishable materials, and natural zeolite prevents the perishable materials from clumping or coarsening, resulting in This makes handling such as transportation and transshipment easier.

This treatment agent can be used in various forms, mainly for example powder, fine particles,
It is used in the form of medium grains, coarse grains, pellets, and beads.
When the perishable substance is in a dry state, it can be used in the form of a slurry or an aqueous solution (low-concentration slurry).If it is used in the form of a slurry, it can be added in multiple steps. good.

In addition, when using it, specifically: ■ Pack the above treatment agent in a water-degradable or water-soluble bag and put it into the perishable substance; ■ Place it in a nylon net or wire mesh container. This treatment agent is stored in the form of granules or pellets,
This is brought into contact with the putrefying substance using the immersion method. Spray it as evenly as possible on the surface of the putrefactive substance (the standard amount of spraying is 100 to 1000 g per 1 m2 of surface area, or re-spray depending on the situation) Or, the interval is 5~
After adding the treatment agent to the perishable material, mix it until it is almost uniform. Depending on the nature of the perishable material, etc., the above-mentioned treatment agent may have different ingredients. Methods such as preparing multiple types and adding them in multiple doses can be adopted. In any case, the addition rate of this treatment agent to the perishable substance is 0.5 to 10% by weight,
In most cases it is 1-4%! & connoisseur.

(Example) Examples of the present invention will be described below.

Example ↓ The results of testing the effectiveness of this treatment agent on pig manure and urine oxidation ponds under the following conditions are shown below.

Conditions Number of ponds: 2 (one is an additive-free target area and the distance between the two areas is 1 m) Size of ponds: 1.5 + i xl, D ll1x0.
6 m (depth) Pig manure input 1: 400 Kg (moisture 92%) Processing agent addition amount: 4 Kg (1% by weight) Processing agent combination: Natural zeolite 60% by weight Magnesia oxide 30% by weight Powdered activated carbon 10% by weight (However, , 50% water content) As a result, the amount of treatment agent added improves water permeability and reduces odor.
A significant addition effect was observed.

As a result of water quality measurement after 2 weeks, the lipid and oil content was about 2/3 of that in the non-additive pond (637 mg/l in the non-additive pond, 402 mg/l in the added oil), and the water-soluble phosphoric acid was 402 mg/l in the non-additive pond. Approximately 11
5 (157 mg/I for the non-additive pond, 25 mg/I for the added oil), and about 2/3 of the normal hexane extract (196 a+g/l for the non-additive pond) The oil was found to be 125 mg/I).

Example: An example of the present treatment agent for perishable substances (main component is okara) as industrial waste from a tofu manufacturing factory is shown.

Bi-natural zeolite with processing agent 50% by weight Magnesium oxide 45% by weight Zinc fL oxide 5% by weight Spread the perishable substance as the target on a sheet and
300 g of this treatment agent was spread per m2 so as to have a substantially uniform thickness.

As a control, a sample to which this treatment agent was not added was similarly spread on a sheet for comparison.

Although it was not observed that flies were attracted to the object to which the treatment agent had been added even after passing through the house for one day, flies were immediately observed to be attracted to the object to which no additive had been added.

In addition, according to the judgment by six judges, the addition of this treatment agent
After several minutes, the odor intensity ranged from ``easily felt'' (intensity 3), three to ``slightly felt'' (intensity), and the other three to ``not perceptible'' (intensity 0). Obtained.

After passing through the house for 24 hours, all six people judged the odor intensity to be 0. On the other hand, for the additive-free control, the odor intensity was unanimously judged as "a weak odor" (intensity 2).

Regarding the odor system, it was recognized that an oily odor and an odor that felt like vinegar were removed. Furthermore,
The addition of this treatment agent was also found to improve the drying speed and suppress dust generation during handling after drying.

Next, 3% by weight of this treatment agent was added to the same object, and the mixture was mixed after addition so as to be almost uniform. Immediately after mixing, the mixture was spread on dry filter paper to a thickness of about 10 mm and air-dried indoors. There is hardly any stain from the permeated liquid on the filter paper, it dries quickly, and it can be easily pulverized even when it contains about 40% water by weight. there were.

On the other hand, we conducted a comparative test on objects without the addition of this treatment agent, but we found that oil-containing exudate oozed out onto the filter paper, the drying rate was slow, and it was possible to make the particles finer. It was difficult.

These facts and phenomena show various effects of spraying and adding the processing agent according to the present invention.Example) Next, an example of adding the present processing agent to kitchen residue will be shown.

Treatment agent composition: Magnesium oxide 40% by weight Natural zeolite 30% by weight Powdered activated carbon 20% by weight Aluminum sulfate 8% by weight Zinc sulfate 2% by weight This treatment agent is used in kitchens discharged from the food service industry that serves approximately 3,000 meals each time. 4% by weight was added to the remaining pickle and mixed until it was almost uniform. After mixing, the mixture was left on a 2 mm wire mesh to a thickness of approximately 300 mm.

When comparing this treatment agent with a control product without additives, various differences were observed as shown below.

In the above table, odor intensity 1 indicates a slightly perceptible odor, 3 indicates an easily perceptible odor, and 4 indicates a strong odor.

The various phenomena described above are part of the remarkable effects of this treatment agent.

(Effects of the Invention) As described above, according to the present invention, acidic components contained in putrefying substances are fixed and stabilized by magnesium oxide in the treatment agent of the present invention, thereby preventing the occurrence of pests and fungi. It is possible to stop or suppress spoilage and fermentation by preventing this.

In addition, this magnesium oxide chemically decomposes lipids and the like in putrefactive substances, thereby lowering the viscosity of the putrefactive substances, thereby making purification easier and faster.

In addition, the lipids decomposed as described above are adsorbed by the natural olide in the treatment agent of the present invention, thereby quickly reducing the viscosity of putrefying substances and achieving rapid purification of permeated water. . In addition, all of the components constituting this treatment agent are available at low cost and do not affect the ecosystem, so they can be used safely and with peace of mind.

In addition, since the natural zeolite absorbs moisture in putrefying substances, the remaining substances after treatment do not become lumpy or coarse.
In addition, this treatment agent can be chemically deodorized by fatty acids, sulfur compounds, or magnesium oxide contained in putrefactive substances, and can be chemically deodorized by fatty acids, sulfur compounds, or magnesium oxide contained in putrefactive substances. Since ammonia and other substances are adsorbed and desorbed by natural zeolite, it can perform a strong deodorizing effect as well as purification treatment.

Furthermore, according to this processing agent, the state after processing contains magnesium carbonate and, in some cases, magnesium hydroxide, in addition to the magnesium salt that has reacted with various components in the object. On the other hand, since various fertilizing ingredients are naturally adsorbed to olide, it also has the advantage of being able to be reused as a soil improvement agent by returning the stiffness to the soil. .

When zinc sulfate or zinc sulfate and aluminum sulfate are added to this treatment agent, a treatment agent with even stronger bactericidal and insecticidal effects is obtained, and when activated carbon is added to these agents, the purification effect can be increased. It is.

Claims (4)

[Claims] (1) Magnesium oxide and natural zeolite are the main components, and by contact with a putrefactive organic substance-containing substance (hereinafter simply referred to as a putrefactive substance), it can fix or stabilize acidic components contained in putrefactive substances, and lipids. A purification treatment agent for putrefactive substances, characterized in that it purifies exudate water and permeated water from the above-mentioned putrefactive substances by promoting decomposition, chemical reaction, and adsorption. (2) The agent for purifying perishable substances as set forth in claim 1, characterized in that zinc sulfate is added thereto. (3) The agent for purifying perishable substances according to claim 2, characterized in that aluminum sulfate is added thereto. (4) A perishable substance purification agent according to claims 1 to 3, characterized in that activated carbon is added thereto.