JP2010184850A - Organic matter-decomposed porous ceramic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that it is difficult or impossible for a conventional microorganism-supporting ceramic to keep the decomposition function for a long period and to preserve for a long period, though the most important point in the degradation of the organic matter by the microorganism-supporting ceramic is that the decomposition function is kept for a long period of time so as to enable long period preservation. <P>SOLUTION: A gelated or powdery organic matter containing a large amount of trace metals and microorganisms is supported on openings of the ceramic, using a granite porphyry grain which has many microcrystal openings, contains many trace metals necessary for the growth of the microorganisms as main component, which is made to have a large diameter, wherein the microcrystal openings contain moisture. The support of the microorganisms keeps the decomposition function for a long period, and the organic matter and the microorganisms are simultaneously supported for the long period preservation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an organic matter-decomposing porous ceramic that microbially decomposes an organic matter.

  Conventional organic matter decomposing ceramics are those in which microorganisms are supported in micropores of porous ceramics, which are put into a decomposition tank having a heater, a blower and a stirring plate, and are stirred together with the organic matter to decompose the organic matter. .

  This ceramic can carry a large amount of microorganisms and is an effective means for decomposing organic substances.

  The most important thing in the decomposition of organic matter by microorganism-supported ceramics is to maintain the decomposition performance for a long time and to enable long-term storage, but conventional microorganism-supported ceramics must maintain the decomposition performance for a long time. It was difficult and could not be stored for a long time.

  Regarding degradation of degradation performance, the degradation of organic substances by microorganism-supported ceramics is generally an intermittent operation with or without organic substances, and microorganisms must be re-supported in the micropores of ceramics when the decomposition of organic substances is completed. At present, a very small amount of microorganisms are supported on the top or only adhere to the surface of the ceramic, and the degradation performance is reduced in a short period of time.

  The fact that it cannot be stored for a long period of time is that soil microorganisms that are particularly useful for decomposing organic matter will die if the environment is not maintained. The condition of storage is that microorganisms become dormant when the water content is approximately 20% or less, but microorganisms need trace amounts of oxygen, moisture and organic matter even in the dormant state, and even if these ones are missing, they die. It will be. In the conventional method, the pores of the porous ceramics are micro-like and support only microorganisms, and the simultaneous support of ceramic organic matter is lacking.

  The present invention is intended to solve the above-described problems of conventional microorganism-supporting ceramics, and the following treatment is applied to the porous ceramics supporting microorganisms to stabilize the growth and inhabitation of microorganisms. An organic matter-decomposing porous ceramic that can maintain and preserve long-term decomposition performance is provided.

  In order to solve the above-mentioned problems, 80% by weight of granite porphyry particles having a diameter of about 2 mm containing a large amount of trace metals necessary for the growth of microorganisms and having many microcrystal openings, a sintering agent having a diameter of about 200 μm, About 10φ of organic matter-decomposing porous ceramic was obtained by kneading and molding 20% by weight of kaolin clay to be fired and sintering at about 1000 ° C.

  This organic matter-decomposed porous ceramic has an average pore diameter of 1 mm, a porosity of 50%, and an average crystal pore diameter of 0.01 μm.

  In addition, the large-diameter pores were loaded with a large amount of trace metals and microorganism-containing gel-like or powdery organic matter, and the granite porphyry microcrystal pores were water-containing.

  The present invention has a large number of trace metals and a large amount of trace metals in the large-diameter opening of ceramics mainly composed of granite porphyry grains containing a large amount of trace metals necessary for the growth of microorganisms. A gel-like or powdered organic substance containing microorganisms is supported, and the microcrystal openings are water-containing.

  For loading of gel-like or powder-like organic matter containing a large amount of trace metals and microorganisms, and water content in microcrystal openings, throwing organic matter containing ceramics, microorganisms and moisture into a decomposition tank with a heater, blower and stirring plate During the decomposition of the organic matter, the large-diameter opening of the ceramic supports a gel or powdery organic matter containing a large amount of microorganisms, and moisture is contained in the microcrystal openings. Many trace metals are contained in the organic matter.

  The organic substance-decomposing porous ceramic of the present invention can maintain the organic substance-decomposing performance for a long period of time. Even if the organic substance containing microorganisms escapes from the opening to decompose the newly introduced organic substance during use, it newly proliferated. A gel-like or powder-like organic substance containing a large amount of microorganisms is always carried in an opening having a large diameter.

  The long-term storage is possible because the microorganisms are in a dormant state when the water content is approximately 20% or less, but the microorganisms need a small amount of oxygen, water and organic matter even in the dormant state. In addition, even if one of these things is missing, it will be killed. Therefore, as shown above, the present ceramic material has an organic substance simultaneously loaded with microorganisms. However, it is necessary to keep the water content of the organic substance at approximately 20% or less as a storage condition.

  As described above, the organic matter-decomposing porous ceramic of the present invention can maintain the organic matter decomposing performance for a long period of time, and has the effect of enabling storage for a long period of time.

  Schematic view of organic matter-decomposing porous ceramics showing an embodiment of the present invention and partially cutaway enlarged view

  Hereinafter, an embodiment of the present invention will be described with reference to FIG.

  In the figure, 1 is an organic matter-decomposing porous ceramic having a diameter of about 10φ, 2 is a granite porphyry grain containing a large amount of a trace metal having a diameter of about 2 mm, and 3 is an average pore diameter of 0.4 mm. The crystal opening is 01 μm.

  4 is kaolin clay used as a sintering agent having a diameter of about 200 μm.

  5 is an opening of 1 mm in average of adjacent granite porphyry grains 3.

  6 is an organic substance supported in the opening 5, and 7 is a microorganism supported in the organic substance 6.

  Granite porphyry 2 of organic matter-decomposing porous ceramics 1 is 80% by weight, and kaolin clay 4 is 20% by weight.

  In addition, the diameter of the organic matter decomposition porous ceramics 1, the diameter of the granite porphyry grains, the diameter of the kaolin clay of 4 and the weight ratio of the granite porphyry grains 2 to the kaolin clay 4 show an example, and the organic matter decomposition As long as the porous ceramic 1 is sintered and a large-diameter hole 5 capable of supporting a gel-like or powder-like organic substance is held, there is no limitation on each dimension. Moreover, although the base material of this organic substance decomposition | disassembly porous ceramic is used as granite porphyry grain, if it is porous, other rocks and clay grains may be used.

  Granite porphyry, which is a base material for organic material-decomposing porous ceramics, contains a large amount of trace metals necessary for the growth of microorganisms. (%)

  Examples of microorganisms supported on organic matter-decomposing porous ceramics include Pseudomonas, Rhodopseudomonas, Streptomyces, Thiobacillus, Cellulomonas, and Cellulomonas. ).

  A method for constructing the organic substance-decomposing porous ceramic will be described below.

  The irregular shaped granite porphyry having an average particle diameter of 2 mm is obtained by passing fine particles pulverized by a pulverizer through a sieving machine.

  80% by weight of the granite porphyry particles and 20% by weight of kaolin clay as a sintering agent were mixed, 200 ml of water was added to a total of 1000 g, and the mixture was uniformly kneaded with a kneader. Next, the kneaded product was extruded with a screw extruder and formed into a substantially spherical shape with an average particle diameter of 10 mm using a granulator. This molded product is a sintered body obtained by drying with an electric dryer and then firing it at about 1000 ° C. for 180 minutes in an electric furnace.

  Thus, the present porous ceramics having a large average pore diameter of 1 mm, a porosity of 50%, and an average crystal pore diameter of 0.01 μm was obtained.

  The porous ceramic is loaded with a large amount of trace metals and microorganism-containing gel-like or powdered organic substances, and the water content in the microcrystal openings is determined by the ceramics, microorganisms and By introducing an organic substance containing moisture, the organic substance in the form of a gel or powder containing a large amount of microorganisms is supported in the large-diameter opening of the ceramic during decomposition of the organic substance, and moisture is contained in the microcrystal openings. It was done.

  The operation of the above configuration will be described below.

  When the organic matter-decomposing porous ceramic is put into a decomposition tank having a heater, a blower, and a stirring plate, and an organic matter containing moisture is introduced, microorganisms are contained in the organic matter containing a large amount of microorganisms supported on the organic matter-decomposing porous ceramic. The organic matter is broken down into water and carbon dioxide while absorbing trace metals in the supported organic matter and ceramics. At this time, the organic matter is initially in the form of a gel and gradually becomes dry. However, during the decomposition of the organic matter, the gel or powdery organic matter containing a large amount of microorganisms is re-supported in the large-diameter opening of the ceramic, Water is contained in the pores.

  The organic matter-decomposing porous ceramics of the present invention has a large diameter opening of ceramics mainly composed of granite porphyry grains containing a large amount of trace metals necessary for the growth of microorganisms, with many microcrystalline pores. Is a gel- or powder-form organic substance containing a large amount of trace metals and microorganisms, and the microcrystalline pores are water-containing, so it always becomes an organic matter-decomposing porous ceramic that supports a large amount of microorganisms. The organic matter decomposition performance of the period will be maintained.

  In addition, the long-term storage is possible because the microorganisms are in a dormant state when the water content is approximately 20% or less, but even if the microorganisms are in a dormant state, a trace amount of oxygen, moisture and organic matter are removed. It is necessary, and even if these items are missing, they will die. As described above, the organic matter-decomposing porous ceramic is a product in which an organic matter is simultaneously supported with microorganisms, and can be stored for a long period of time if it is dried by approximately 20% or less of moisture.

DESCRIPTION OF SYMBOLS 1 Organic matter decomposition porous ceramics 2 Granite porphyry grain 3 Crystal opening 4 Kaolin clay 5 Opening 6 Organic matter 7 Microorganism

Claims (3)

  Organic matter-decomposing porous ceramics, which are granulated porphyry grains and kaolin clay mixed with water and molded and fired.   The organic matter-decomposing porous ceramic according to claim 1, obtained at a firing temperature of about 1000 ° C.   The organic matter-decomposing porous ceramic according to claim 1 or 2, wherein organic matter and microorganisms are supported in the pores, and water is contained in the crystal pores of granite porphyry grains.

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