KR19990046665A - The manufacture method of bacteria activated by sewage and wastes water treatment - Google Patents

Abstract

The present invention relates to a microbial active agent for treatment of sewage, wastewater, manure, sewage and livestock wastewater, and a method of manufacturing the same, and more particularly, in an iron-smelting furnace containing silicic acid, calcium oxide, iron oxide, magnesium oxide, aluminum oxide, and manganese oxide. Manufacture the microbial activator shipped as a product by crushing the slag coming out, mixing a certain amount of magnesium sulfate and manganese sulfate, and then packing and weighing a predetermined amount, and preparing a microbial activator in a treatment plant such as sewage and wastewater using Bacillus species mixed bacteria. Continuously put in, it will help the growth and division of Bacillus species mixed bacteria that decompose, ingest and purify contaminants contained in sewage and waste water, so that it can grow logarithmically and promote enzyme production to decompose hardly decomposable substances. Induces sporulation and at the same time provides spore forming material, so solid and liquid separation in sedimentation basin And, the microbial active agents for waste water treatment so as to ensure a high efficiency and to a method of manufacturing the same.

In particular, the present invention provides a microbial activator for treating sewage, wastewater, manure, sewage and livestock wastewater using Bacillus species mixed bacteria, wherein the microbial activator is 25 to 38% calcium oxide, 25 to 35% silicate, magnesium sulfate 7 hydrochloride 7-15%, aluminum oxide 7-15%, magnesium oxide 5-9%, manganese sulfate tetrahydrochloride 1-5%, titanium oxide 1-3%, iron oxide 0.1-1.0%, sulfur 0.1-1.0% , Manganese dioxide, 0.1 to 1.0%, phosphorus trioxide 0.01 to 0.05%, and other substances 1 to 5% of the composition is characterized by the composition.

Description

Microbial activator for wastewater treatment and its manufacturing method {The manufacture method of bacteria activated by sewage and wastes water treatment}

The present invention relates to a microbial active agent for treatment of sewage, wastewater, manure, sewage and livestock wastewater, and a method of manufacturing the same, and more particularly, in an iron-smelting furnace containing silicic acid, calcium oxide, iron oxide, magnesium oxide, aluminum oxide, and manganese oxide. Manufacture the microbial activator shipped as a product by crushing the slag coming out, mixing a certain amount of magnesium sulfate and manganese sulfate, and then packing and weighing a predetermined amount, and preparing a microbial activator in a treatment plant such as sewage and wastewater using Bacillus species mixed bacteria. Continuously put in, it will help the growth and division of Bacillus species mixed bacteria that decompose, ingest and purify contaminants contained in sewage and waste water, so that it can grow logarithmically and promote enzyme production to decompose hardly decomposable substances. Induces sporulation and at the same time provides spore forming material, so solid and liquid separation in sedimentation basin And, the microbial active agents for waste water treatment so as to ensure a high efficiency and to a method of manufacturing the same.

In general, various products such as nitrogen source and phosphorus, or spawning agents have been developed, applied and utilized for the activation and dominance of microorganisms in treatment of sewage and wastewater. For example, in standard activated sludge method, urea or phosphoric acid is administered to be used as a nutrient source of microorganisms, and effective microorganisms are powdered and liquefied to be administered at regular doses to maintain the concentration of microorganisms as needed and to activate them. .

However, its technology is inefficient in nitrogen and phosphorus removal efficiency, and it is inherent in the problem of not being able to obtain stable water quality because it is sensitive to fluctuations in water temperature, water quality and quantity, which eventually leads to eutrophication and red tide in stagnant lakes and shores. It is known that it is causing damage to the natural environment and causing enormous loss to human life.

Therefore, in recent years, as a technique for removing nitrogen and phosphorus, a treatment method for purification of sewage and wastewater by the innovative Bacillus species mixed bacteria has been developed to solve the above problems, but it promotes the growth of filamentous bodies and endogenous spores of Bacillus species mixed bacteria. There was a problem in that the composition of the material and the material promoting the same to improve the efficiency of the advanced treatment of sewage, wastewater, etc. was not sufficient to maximize the efficiency of treatment of sewage and wastewater treatment by mixed Bacillus species.

The present invention has been devised to further enhance the high-treatment efficiency of sewage and wastewater by promoting growth of filamentous bodies of Bacillus sp. Mixed bacteria and constituting endogenous spores, and substances promoting the same. Bacillus spp.Bacterium grows logarithmically during filament growth process to induce the concentration of cells to be about 10 ⁷ ~ 10 ¹¹ / ml and promotes hydrolytic enzyme production to mix polysaccharides, proteins, nucleic acids and lipids that are difficult to degrade It provides a microbial active agent for sewage and wastewater treatment, and a method for producing the same, in which the bacteria are ingested in an ingestible state, and the inorganic nutrients involved in stabilizing the structure of the spore membrane, ribosomes, and nucleic acids are produced during the sporeing process. The purpose is.

The present invention for achieving the above object in the composition of microbial activator for sewage and wastewater treatment using Bacillus species mixed bacteria, the microbial activator 25 to 38% calcium oxide, 25 to 35% silicic acid, magnesium sulfate 7, 7-15% of hydrochloride, 7-15% of aluminum oxide, 5-9% of magnesium oxide, 1-5% of manganese sulfate tetrahydrate, 1-3% of titanium oxide, 0.1-1.0% of sulfur oxide, 0.1-1.0% of sulfur, It is characterized by the composition ratio of manganese dioxide 0.1 to 1.0%, phosphorus trioxide 0.01 to 0.05%, and other substances 1 to 5%.

In addition, another feature of the present invention is a method for producing microbial activator for sewage and wastewater treatment using Bacillus species mixed bacteria, the grinding step of pulverizing the slag mass discharged from the steelworks furnace with a pulverizer, the sieve step Filter the powder to be pulverized by the separation step of separating only the powder of 100 mesh or more, and the slag powder obtained in the separation step and magnesium sulfate, manganese sulfate mixed in a mixer, the mixing ratio of calcium oxide 25 to 38%, silicate 25 -35%, Magnesium sulfate, 7-% salt, 7-15%, aluminum oxide 7-15%, magnesium oxide 5-9%, manganese sulfate, 4-hydrochloride 1-5%, titanium oxide 1-3%, iron oxide 0.1-1.0% After a mixing step consisting of 0.1 to 1.0% of sulfur, 0.1 to 1.0% of manganese dioxide, 0.01 to 0.05% of phosphorus trioxide, and 1 to 5% of other substances, it is weighed by a certain amount and shipped to the product.

Hereinafter, the present invention will be described in more detail.

As a raw material of the present invention, the components of the slag from the blast furnace of the steel mill contain amorphous silicic acid, calcium oxide, magnesium oxide, manganese dioxide, aluminum oxide, iron oxide, and the like, which are pulverized to 100 mesh or more to magnesium sulfate (manganese sulfate). ) To make a mixture in the same ratio as in Table 1.

The amorphous silicic acid contained in this microbial activator plays a role in promoting the filament growth of Bacillus species, and the manganese component acts as an activator of the enzyme and plays an important role in detoxifying oxygen derivatives toxic to microorganisms. Magnesium component is involved in stabilizing the structure of the spore membrane, ribosomes and nucleic acids during the sporulation process, it is also required for the activation of various enzymes, in particular phosphate transfer enzymes, calcium components are required for the formation of spore shells. Here, if Bacillus species are mixed, the composition of bacteria is different depending on the characteristics of sewage and wastewater, but the following Bacillus species were observed in each group. Bacillus alsei, Bacillus brevis, Bacillus suturans, Bacillus survivisris, Bacillus dervishis and Bacillus pasteuris belonging to group II, Bacillus spalicus and Bacillus pastides of the unidentified group. The species is a gram-positive rod-shaped bacterium that is a single cell and grows into filamentous filaments, and when the living environment worsens, one endogenous spore is formed per cell as a means of survival.Bacillus species mixed bacteria are difficult to degrade polysaccharides, proteins, Decomposes starch and lipids and ingests them to promote growth and growth.

Composition of the microbial active agent for sewage and wastewater treatment to which the present invention is applied is shown in Table 1.

Comparison of raw and treated water analysis results of H apartment sewage treatment plant Unit:% Calcium Oxide (CaO) Silicate (Sio ₂₎ Magnesium sulfate, 7 hydrates (MgSO ₄ , 7H ₂ O) Aluminum Oxide (Aℓ ₂ O ₃ ) Magnesium Oxide (MgO) Manganese sulfate tetrahydrate (MnSO ₄ 4H ₂ O) Titanium Oxide (TiO ₂ ) Iron oxide (FeO) Sulfur (S) Manganese Dioxide (MnO) Phosphorus trioxide (P ₂ O ₅ ) Other substances 25-38 25 to 35 7-15 7-15 5-9 1 to 5 1 to 3 0.1 to 1 0.1 to 1 0.1 to 1 0.01 to 0.05 1 to 5

The manufacturing method of the material of the said Table 1 is as follows.

First, the slag lumps to be disposed of in the steel mill furnace are crushed in a crusher.

Second, as a sieving, a powder of 100 mesh or more is obtained.

Third, the slag powder and magnesium sulfate (manganese sulfate) are put in the mixer in the ratio as shown in Table 1 and thoroughly mixed.

Fourth, measure a certain amount and pack in a packing machine.

The microbial activator prepared by the above method is charged with 0.01 ~ 0.04 ㎏ per kilogram of biological oxygen demand (BOD) to the treatment plant such as sewage and wastewater by using Bacillus species mixed bacteria, sewage and wastewater containing a lot of pollutants in the organic state. Among them, mixed Bacillus spp. Divide and grow, and grow in logarithmic form, forming filaments. In this process, when pollutants such as organic matter, nitrogen and phosphorus are ingested and depleted, filamentous Bacillus spp. Form endogenous spores, and solid and liquid separation separates the sewage and wastewater.

The following describes an example of treatment of sewage and wastewater in which the microbial activator of the present invention is added while being operated using Bacillus species mixed bacteria.

Example 1

H Apartment Sewage Treatment Plant

The plant was constructed and operated to treat 400㎥ of sewage per day using Bacillus species, but the condition of the plant was poor due to lack of manager's quality. In other words, the solids and liquids were not separated in the sedimentation tank, and the suspended solids were discharged. The foam was overflowing in the aeration tank. The odor vibrated in the sewage treatment plant installed underground, and the switchboard was corroded. Thus, the result of operating for about a week while injecting the present invention microbial activator about 0.015 kg per 1 kg of biological oxygen demand (BOD) for 1 week to obtain the analysis results of the treated water quality as shown in Table 2.

Comparison of Raw and Treated Water Analysis Results of H Apartment Sewage Treatment Plant Unit: mg / ℓ Category Item enemy Number of treatments Specific area discharge standard Before adding microbial activator After adding microbial activator BOD SS Total Nitrogen Gunner 250 200 68 5 65 87 53 4 4 10 8 2 20 20--

As shown in Table 2, the water quality of the treated water after the addition of the microbial activator shows that the water quality of the treated water is better than that of the water before the microbial activator is added. This is a result of vigorous growth and division of Bacillus sp. Mixed microorganisms by the microbial activator, and SS also shows about 10 ml / l because spore formation was performed reliably. In addition, there is no regulation on total nitrogen and total phosphorus, but it shows high processing efficiency. In addition, by injecting the present invention microbial activator was able to easily manage even inexperienced people without driving experience.

Example 2

L Milk and factory wastewater treatment plants

The plant was constructed and operated to treat 2,500㎥ of wastewater per day, and the facility was improved to be treated by mixed Bacillus species, but the problems such as bulking were not reduced as before. Thus, the biochemical oxygen demand (BOD) of about 0.02 kg per day of the present invention, the microbial activator of about 2 weeks while operating for about two weeks as a result of the treated water quality as shown in Table 3.

L Comparison of Raw and Treated Water Analysis Results of Milk and Dairy Plant Wastewater Treatment Plant Unit: mg / ℓ Category Item enemy Number of treatments Specific area discharge standard Before adding microbial activator After adding microbial activator BOD COD SS Normal Nucleic Acid Extract Nitrogen Total Nitrogen 905 956 813 85 79 27 38 69 55 20 45 19 5 18 9 2 5 2 30 40 30 5 30 4

As shown in Table 3, by continuously adding the microbial activator was able to maintain a stable treated water quality.

Example 3

W City Livestock Wastewater Treatment Plant

The treatment plant was constructed and operated to treat livestock wastewater of 100 일 a day using mixed Bacillus spp., But the growth of the Bacillus spp. In the aeration tank was slow and spore formation was not good. As a result of operating for about a month while adding about 0.04kg / kg of BOD daily, the analysis results of treated water as shown in Table 4 were obtained.

Comparison of Raw and Treated Water Analysis Results of W-Livestock Wastewater Treatment Plant Unit: mg / ℓ Category Item enemy Number of treatments Specific area discharge standard Before adding microbial activator After adding microbial activator BOD SS Total Nitrogen Gunner 18,300 20,000 3,860 320 350 280 210 150 5 18 16 27 50 50 260 50

As shown in Table 4, the water quality after the addition of the microbial activator was significantly lower than the treated water before the addition of the microbial activator.

Example 4

U-shi sanitary treatment plant

This plant is a facility that treats 300 ㎘ of septic tank sludge collected in U city and treated by anaerobic method, but the water quality of treated water is not changed even though it is operated after converting to treatment method using mixed Bacillus species. The discharge criteria were not met. Thus, the microbial activator of the present invention was operated for about 20 days with about 0.035 kg of biochemical oxygen demand (BOD) per kilogram daily, resulting in analysis of the treated water quality as shown in Table 5.

Comparison of Raw Water and Treated Water Analysis Results of U-Sit Sanitary Treatment Plant Unit: mg / ℓ Category Item enemy Number of treatments Specific area discharge standard Before adding microbial activator After adding microbial activator BOD COD SS Total Nitrogen Total Coliform Count (Pcs / mL) 7,470 5,550 11,200 1,810 4304.8 × 10 ⁵ 280 420 330 250 140 1,360 6 18 15 12 4 20 30 50 30 60 8 3,000

As shown in Table 5, the treated water after the continuous input of the microbial active agent was superior to the water quality before the microbial active agent was added, it was possible to maintain a stable water quality.

As described above, the present invention serves as a catalyst for active growth, cleavage and proliferation of Bacillus spp. Mixed bacteria when microbial activators of the present invention are continuously added to the wastewater treatment plant using Bacillus sp. Mixed bacteria as shown in Examples. It increases the production of enzymes to decompose polysaccharides, proteins, nucleic acids and lipids, which are difficult to decompose, and induces spore formation and provides a substance that forms a spore sheath, thereby clarifying solid and liquid separation. The height was effective.

Claims (2)

In preparing a microbial activator for treatment of sewage and wastewater using Bacillus sp. Mixed bacteria, the microbial activator is 25 to 38% calcium oxide, 25 to 35% silicic acid, 7 to 15% magnesium sulfate and 7 hydrate, and 7 to aluminum oxide. 15%, magnesium oxide 5-9%, manganese sulfate tetrahydrate 1-5%, titanium oxide 1-3%, iron oxide 0.1-1.0%, sulfur 0.1-1.0%, manganese dioxide 0.1-1.0%, phosphorus trioxide 0.01-0.05 A microbial activator for sewage and wastewater treatment, characterized in that it is formulated at a mixing ratio of 1% to 5% of other substances. In the method for producing a microbial activator for treatment of sewage and wastewater using Bacillus species mixed bacteria, the grinding step of pulverizing the slag mass discharged from the steel mill furnace as a grinder, A sifting step of filtering the powder pulverized by the crushing step as a sieve, but separating only the powder of 100 mesh or more, Put the slag powder, magnesium sulfate, and manganese sulfate obtained in the sorting step into a mixer and mix them, but after the mixing step in which the mixing ratio is made of the ratio of the microbial activator mentioned in claim 1, it is weighed by a predetermined amount and shipped to the product. Microbial activator manufacturing method for treatment of sewage and wastewater, characterized in that to be made.