JP2001010885A - Method and equipment for producing water-soluble organic fertilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method enabling cultures using organic fertilizer in view of the fact that much chemical fertilizer has been used in nutricultures, while there has been little organic fertilizer used in such nutricultures. SOLUTION: This method comprises the following practice: raw water is put into a tank 2, a bubbling nozzle 21 is set up at the bottom of the tank and mounted with an air feed tube 22 so as to extend to the outside above the tank, and air is then blown into the nozzle 21; thereby bubbles are filled throughout the tank; in this condition, a biodegradation is carried out by the aid of the bubbles; because bubbles break with time, they are replenished by blowing air into the nozzle for compensation; a filter 23 for breaking bubbles is set up as a device for air vent; when bubbles pass through the filter, they are separated into air and water, the air is vented upward through an exhaust tube 24, while the water falls down; wherein the filter 23 is e.g. a multilayered coarse cloth, being such as to make use of the principle that bubbles break when they pass gradually through meshes; thereby enabling shifting from a system that bubbles are replenished for compensating broken bubbles after bubbles are filled in a tank and part thereof breaks, to the new system as described above that a biodegradation reaction is promised while forcedly breaking bubbles in the tank and steadily converting raw water to bubbles, which are circulated by convection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method and an apparatus for producing a water-soluble organic fertilizer.

[0002]

2. Description of the Related Art In organic fertilizers, compost, compost,
There were manufacturing technologies such as blurred fertilizer (high-grade organic fermented fertilizer) and green grass liquid fertilizer. As a method of biodegrading organic matter, there was a technology of sewage treatment, but this is a technology for discarding,
It was not a technology to use.

[0003]

In hydroponic culture, there are many chemical fertilizers and there is almost no cultivation using organic fertilizers, and cultivation using organic fertilizers by some method is required.

[0004]

The organic matter is biodegraded in the form of foam to produce fertilizer water.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below, but the present invention relates to Japanese Patent Application No. 29909700192 filed on May 25, 1999. As a basic matter, fertilizer water is produced by biodegrading raw water or a mixture of raw water containing organic components necessary for producing fertilizer. When the organic matter is put into water, it must be sufficiently fine and the amount must be within the range that can be handled as a normal fluid. Biodegradation is defined as biodegradation in which microorganisms (fungi, digestive enzymes produced by fungi, protozoa, etc.) decompose organic matter and return to elements. The terms and the like use technical terms in the field of sewage treatment, and descriptions of the terms and the like are omitted.

Description of the manufacturing method. . . (Basic Theory of Decomposition) A method of biodegrading raw water containing organic components at a high BOD concentration by blowing air from below into the tank shown in Fig. 3 is a general method. Therefore, the following methods are available to increase the decomposition speed. 1 It is sufficient to make the air infinitely large. . . The two tanks that move to the trickling filter bed should be made thinner and higher. . . Shift to deep tank aeration. 3 Make the tank as thin as possible and tilt it. . . Transitioning to Multiple Aerations In order to contact more air than a single trickling filter bed, forming a filter bed with foam increases the contact area with air due to the fineness of the grains and thus increases the decomposition capacity. The organic matter usually contains a component that emits bubbles, but contains uncertainties, so that air is blown in, the quality of the bubbles is checked by a sensor, and if insufficient, a foaming agent is added. (To be about 50 PPM for casein, keratin, etc.) In aerobic bacteria, it is considered that it is proportional to the amount of oxygen. It is less than one-thousandth. In other words, in the case of decomposing with foam, it is theoretically possible to supply one-thousandth of air with the same capacity. This is characterized by the downsizing of the pump to be fed and the drastic reduction in the amount of electricity consumed, and it is also a method for decomposing surfactants. (Because the BOD concentration in the aeration tank decomposes at about 200 PPM, it is necessary to constantly control the inflow of raw water so as to keep it below that in the treatment of high-concentration organic substances.) In the treatment of sewage, excessive aeration (add air) However, this is important when discarding water due to the phenomenon that organic matter has become finer. It is naturally better to have a large amount of air to decompose the whole, and to discard water Since the method of separating organic matter and water is adopted,
The remaining organic matter is treated separately under the name of sludge.
There is no sludge for the purpose of producing fertilizer water, and it should be described as undegraded organic matter. Depending on the organic substance charged or the internal composition, some are late and some are late. If it is late, it is returned to raw water or the like again and decomposition is repeated. The difference from the trickling filter is whether there is a filter medium or not. If the filter medium is made smaller, a similar effect should be obtained, but if the filter medium is made smaller, it will not be too small. I can't match the expression. (Normal filter media is about 50 mm and its volume is not used. When water flows through the rest,
Not used because air is used for biodegradation, so the used volume is greater than the unused volume)

Description of raw water and organic matter to be charged [0007] The type of fertilizer that can be obtained by mixing which materials and in what proportion, and which material is used to make up for the insufficiency of fertilizer is determined by the person who grows the plant. Entrust it to For the same reason, it is up to the person who grows the plant to determine what proportion of fertilizer water, which is close to a single material, is best mixed, how, when and how much it is best to feed the plant. As a matter of course, it is necessary to make fertilizer water in the place where it is grown. However, the place where the fertilizer is made may be said to be a place where organic matter is produced, for example, a livestock farm, a sewage treatment plant, or a food processing plant. In these cases, it is more convenient to transport organic fertilizer at a high concentration, and it is also convenient to heat sterilize fertilizer water. Of course, it is also possible to make liquid fertilizer by dissolving compost, compost, and blurred fertilizer in water and putting into this device. In this case, emphasis is placed on the certainty of decomposition and the extraction of nutrients. In addition, there is a method of cultivating fertilizer grass and using it as a fertilizer. For example, soft ones such as clover and vetch are promising. A wide variety of component combinations are conceivable, but only until the provision of equipment and methods.

Explanation of the device for disassembly Here, the device for only the parts necessary for disassembly will be described with reference to the drawings. FIG. 1 shows the basic concept, in which raw water is put in a tank (2), a foaming nozzle (21) is arranged at the bottom of the tank, and a pneumatic pipe (22) is attached to the foaming nozzle. To the outside of the tank and express the blowing of air into the pipe, thereby expressing the foam filled the entire tank.
In this state, biodegradation is performed at the foam. The foam collapses over time, so refill the foam while blowing air. In the above method, a filter (23) for crushing air is provided as a device for bleeding air, through which air and water are separated, the air passes through an exhaust pipe (24) and goes up, and the water falls down. Although this filter is not remarkable because it is a multi-layered array of coarse cloths, it is based on the principle of crushing when bubbles slowly pass between the eyes. In this way, it is possible to shift from a system in which the foam is filled and then supplementing the amount in which the foam is crushed to a system in which the raw material water is forcibly crushed and the convection is made, and the decomposition reaction is waited. As a result, the decomposition reaction time can be shortened, and the device is also a device for decomposing a surfactant. Regarding the foaming nozzle The foaming nozzle forms the basis of the present invention and will be described in detail. The principle of the method of making bubbles is to mix air and water, but how to mix
More reliably, less power consumption, no failures, easier
The question is whether smaller bubbles can be formed. Small-grained foam is a condition for exhibiting the features of this device. Larger-grained foam reduces the biodegradability because the area of contact with air is reduced. A method of blowing air from a small hole in water satisfies the above condition. (The stirring method is also possible, but the power consumption and simplicity are inferior.) In this case, a large number of small holes are required to secure a predetermined amount of foam, and this is required to be combined with the foaming nozzle (21). I tentatively named it. Although a large number of small holes are provided, a space between the holes (about 0.5 mm) is also required, and it is not to say that a small hole is sufficient. (Space for Involving Water) Practical materials include porous ceramic, sintered metal, porous rubber, and the like. A small hole may be made in a metal plate or the like, but the problem is how small the hole can be made. In FIG. 2, a device is described in which the foam is once lifted up and the convection of the foam is performed in the entire tank. The apparatus is configured such that the raw material water becomes a foam and is convected in the tank, so as to uniformize the decomposition in the entire tank. The cylinder (25), foaming nozzle, and pneumatic tube constitute a single pump function,
It is a new shape pump. Since the above items have been patented separately, it will be briefly described that the lift from the nozzle becomes a bubble state due to the deformation of the air lift pump in the case of sewage treatment. It is the principle that the head is increased by the ratio of ()).

[0009]

[Embodiment 1] Although the basic principle is as described above, the relationship with the surroundings is not described, so if a bucket is inserted and extracted with a bucket, it is not impossible to do so. In describing, a wide variety of devices can be considered depending on production capacity, precision, type of organic raw material, etc., and it is not possible to describe all of them. Describe special equipment. (There are various functional additions.) FIG. 5 is an exploded flow sheet (process explanatory diagram), which is an explanatory diagram of the apparatus together with the system diagram of FIG. 6, and the symbol numbers and the like are linked. (Only those that are particularly necessary are described.) Among them, some of the pulverization depends on the raw material, and some are not. A foam pump is used to decompose the raw materials, and a foam pump is used to transport the raw materials. When air is sent into the raw material tank, anaerobic bacteria are often too large if organic matter is left without air for a very long time. (Depending on things)
(Usually 8 hours) This place is different from septic tank and sewage treatment. When foam is required to be detected each time the material is transported or disassembled, and the foam is not detected within a predetermined time after the air supply, the foaming agent valve is opened and a predetermined amount of the foaming agent is injected. Normally, there are many components that produce bubbles in the organic raw material, but this is not always the case. (In order to make the foaming agent about 50 PPM) In FIG. 5 and FIG. 6, “n” is used to indicate that there are various types up to the last number. In FIG. 6, a ventilation pipe is connected to a raw material tank and a foam decomposition tank, and finally discharged to the atmosphere by an exhaust pipe. The feature is that a filter is provided for crushing bubbles. By passing through this filter, the foam will be crushed and it will also help remove bad smells.
Bacteria break down odorous components. (Bacterial deodorizing filter) The degree of decomposition is increased by increasing the number of foam decomposition tanks for each stage and by prolonging the decomposition time, and it is designed according to which organic raw material is used. (Here, only the principle) Although the relationship with the quantity is not described, it is considered as the design range and is omitted.

[0010]

[Embodiment 2] A description will be given based on FIG. This method is an ideal method that combines the production of fertilizer by foam decomposition with the method of extracting organic components (sludge) directly from the sedimentation tank of a sewage treatment facility, and the extremely reduction of the amount of sludge. Yes,
It is also a sludge treatment device. In the past, sludge was dewatered and incinerated, but the decomposition method of the foam system greatly reduces the amount of incineration and is used as fertilizer, which is environmentally friendly and ideal. It is ideal because fertilizer can be produced at the cost of transporting sludge to the treatment facility, and it can be installed without changing the basic structure of the treatment facility.

[0011]

According to the present invention, the organic water can be decomposed at a high concentration by forming the organic water into a foam. In addition to compost compost, a method for producing organic fertilizer in a short time was achieved. By combining with a wastewater treatment facility, it becomes the ultimate device that combines the functions of both a sludge treatment device and an organic fertilizer production device with one device. Naturally, the same applies to livestock wastewater treatment facilities and other wastewater. This device can also be used as a surfactant decomposition device.

[Brief description of the drawings]

FIG. 1 is a sectional view of the present invention.

FIG. 2 is a sectional view of the present invention.

FIG. 3 is a cross-sectional view of a conventional aeration tank.

FIG. 4 is a cross-sectional view of a conventional sprinkling filter bed.

FIG. 5 is an exploded view of the present invention.

FIG. 6 is a system diagram of the present invention.

FIG. 7 is a system diagram of connection between the apparatus of the present invention and an existing sewage treatment technology apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Raw material storage tank 11 Bubble pump 2 Decomposition tank 21 Foaming nozzle 22 Pneumatic pipe 23 Filter 24 Exhaust pipe 25 Tube 26 Decomposition foam pump 27 Outlet 2n Decomposition tank 3 Precipitation separation tank 31 Return pump (air lift pump) 4 Fertilizer water Storage tank 5 Foaming agent tank 51 Foaming agent pump 52 Foaming agent tube 53 Solenoid valve 54 Foam sensing sensor 60 Compressor 7 Conventional water treatment facility

Claims (3)

[Claims] 1. A method for producing a water-soluble organic fertilizer, comprising subjecting raw water having a high concentration of an organic component to foaming and maintaining a foam state for one fixed time to cause a biodegradation reaction. 2. A foaming nozzle (21) is attached to the decomposition tank (2) near the bottom thereof, an air supply pipe (22) is attached to the nozzle, and an exhaust pipe (24) is attached to the upper part of the tank.
An apparatus for producing a water-soluble organic fertilizer, wherein a filter (23) is attached to a pipe. 3. A tube (25) is mounted in the decomposition tank (2) slightly upward from the bottom surface, slightly apart from the bottom surface, is disposed above the water surface, and a foaming nozzle (21) is provided at the bottom of the tube. attachment,
An air supply pipe (22) is attached to the nozzle, an exhaust pipe (24) is attached to the upper part of the tank, and a filter (2) is attached to the pipe.
3. An apparatus for producing a water-soluble organic fertilizer, comprising: