JP2002239576A - Method for removing oil in wastewater, treatment bag for removing oil and oil removing strainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for simply separating and removing oil contained in domestic wastewater using aerobic microorganisms having oils and fats decomposition activity, and a treatment bag. SOLUTION: A net bag is filled with a large number of particles having a soybean size of a treatment agent prepared by filling porous particles, which are obtained by baking a fine powder of silicic acid, calcium oxide, activated carbonor or the like, with spores or the like of microorganisms belonging to the genus Bacillus, the genus Alkaligenes, yeasts or the like. This net bag is arranged so as to cover a drain port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for decomposing and removing oil contained in wastewater, particularly wastewater from ordinary households.

[0002]

2. Description of the Related Art Although a large amount of oil in drainage discharged from factories or restaurants is removed in a treatment tank, it is accompanied by cooking, dishwashing, washing, bathing, etc. from ordinary households. Currently, even if a small amount of oil is contained, the wastewater is discharged to the sewer as it is, and is only treated as combustible waste after solidifying the tempura oil or adsorbing it to the stock. Absent.

[0003]

SUMMARY OF THE INVENTION The present invention is capable of decomposing and removing oil in waste water, particularly in waste water generated from daily life in general households, in the drain passage, and absorbing and eliminating malodors and off-flavors. Not only, oil decomposition method that can regenerate and maintain oil decomposition and removal function for a long time,
An object of the present invention is to provide a processing bag for removing oil and a strainer for removing oil, thereby contributing to environmental conservation.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a fine powder of rock, activated carbon or the like containing silica, magnesium oxide, ferrous oxide, calcium oxide or the like as main components is used. In the porous portion of the granules obtained by sintering and baking the mixture with porous and the like, Bacillus sp., Alcaligenes sp., Yeasts, etc., microorganisms having aerobic fat-and-oil decomposability, spores of fungi, and spores are incorporated and carried. Treatment agent.

[0005] A large number of the processing agents in the form of small particles are loaded into a coarse bag to form a processing bag, and the processing bag is disposed so as to cover a drain hole, and drainage containing oil is discharged from the processing bag. And let it flow down into the drainage pipe.

According to a second aspect of the present invention, a large amount of the treating agent employed in the first aspect of the present invention is filled in a coarse net bag capable of forming a predetermined area and a predetermined thickness, and is filled into a drain hole. A processing bag for removing oil, which can be easily attached and detached.

According to the third aspect of the present invention, the processing bag body for removing oil according to the second aspect of the present invention is removably inserted into a strainer formed of a small mesh net which is removably disposed in the drain hole. The interior was made into one set to make an oil removal strainer.

According to any one of the first, second and third aspects of the present invention, a small particle as a treating agent in which microorganisms, fungal spores, and spores having aerobic water and a fat-and-oil decomposability when used are carried. By infiltrating into the porous part of the body, spores, spores, etc. germinate and grow as they grow, the oil attached to the surface of the small granules is decomposed, harmless substances are discharged, and at the same time, the small granules as the treating agent The fine powder of activated carbon mixed in the water adsorbs off-flavor substances, purifies sewage and discharges it.

[0009] The repetition of the decomposition of fats and oils in the wastewater leads to the death and outflow of microorganisms and fungi having the ability to degrade fats and oils. The spores and spores that have been carried germinate, grow, and regrow as an aerobic feature during the period when drainage does not flow, so that the decomposition of fats and oils is repeated for a long time.

[0010] The outflow of the microorganisms, fungi and their spores, spores, etc., is considered to cause the phenomenon that they are locked and adhered to the inner surfaces of the discharge pipes and drainage channels, and it is not clear whether this is the reason. Due to the adhesion of dirt on the inner surface of drainage pipes and drainage channels,
Off-flavor generation is also reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the invention of claim 1, aerobic microorganisms, fungi such as Baltis, Alcaligenes, Pseudomonas, yeast, etc., which are naturally occurring, have a fat-and-oil decomposability, and are fungi. The microorganisms and fungi are mainly used for removing oils and fats in domestic wastewater. Therefore, as a carrier of these microorganisms, small particles that are formed of an inorganic substance containing no harmful components and are communicated with a fine porous body Made the body.

That is, as a first step, a mixture of a fine powder of rock, activated carbon or the like containing silicate, magnesium oxide, ferrous oxide, calcium oxide or the like as a main component and containing no harmful substances, and clay or the like are communicated with each other. Porous, soybean or red beans were baked and baked.

In the above-mentioned formation of the porous small particles, the small particles composed of a rock group mainly composed of silica or the like and the small particles mainly composed of activated carbon are separately molded and baked. It is also advantageous in terms of visual separation of small particles having a main effect of decomposition of fats and oils described later and small particles having a main effect of absorbing and eliminating bad smells and odors, and visual discrimination of a mixing ratio. . The average particle size of the porous small particles is about 0.5 mm to 6 mm,
The bulk specific gravity was about 0.5 to 1 g / ml.

Next, as a second step, a microorganism of the genus Bacillus, Alcaligenes, Pseudomonas or yeast,
The fungi are propagated, and these microorganisms, fungi or their spores and spores are mixed with water, penetrated into the fine pores of the small particles, incorporated, dried, and supported, as shown in FIG. An individual treating agent 1 was formed.

Next, the treatment agent 1 is filled into a coarse net bag of a required capacity sewn with a coarse cloth such as a mesh knitted fabric of synthetic fibers such as polyester having water resistance to form a treated bag body.

The shape and capacity of the bag and the treatment agent 1 to be filled
Depends on the amount of drainage at the application site, drainage hole structure, etc.
The required numerical value is selected.

An example of the processing bag 2 filled with the processing agent 1 is as shown in FIG.
As an example, as shown in FIGS. 2 and 4, the drainage hole 3 or 4 is disposed so as to cover the drainage hole, and drainage containing oil is passed through the processing bag body 2 as shown by an arrow X in FIGS. The oil is attached to the surface of the treatment agent 1 and flows down into the drain pipes 5 and 6.

The oil adhering to the treating agent 1 is decomposed by the aerobic microorganisms and fungi capable of decomposing fats and oils, and the malodorous and off-flavor components in the wastewater are adsorbed and removed by the activated carbon particles.

The fats and oils in the wastewater are hydrolyzed into glycerin and fatty acids by the above-mentioned microorganisms and fungi, and further adhere to the treatment bag from the wastewater, and are further decomposed by other bacteria that have multiplied, and are further decomposed. It is transformed into and flows down.

According to the method of the present invention, unless continuous discharge of boiling water or strong alkaline solution is carried out, microorganisms and bacteria in the treating agent 1 can be spores and spores for more than 6 months in general households. And the like, and the resolution of the oil can be maintained during that time.

The spores, spores, etc., which flow down together with the wastewater,
It is presumed that it adheres and proliferates on the inner surfaces of drain pipes and drains, etc., and decomposes oil adhering to these surfaces, for unknown reasons. Occurrence is also reduced.

FIG. 1 shows an embodiment of the second aspect of the present invention. A large number of processing agents 1 used in the first aspect of the present invention are filled in a coarse net bag 7 to form a processing bag body 2. ing.

The illustrated net bag 7 is openable and closable by a slide fastener 8 which is schematically shown, and a lid 9 shown in FIG. A mesh net 9A coarse enough to prevent the treatment agent 1 from flowing out, like a mesh knitted atlas net made of polyester yarn.
The body portion 10 and the bottom portion 11 are formed of a warp knitted fabric or the like that is fine enough to be able to lock the small pieces in the drainage. It is needless to say that may be formed of a mesh fabric formed of plastic filaments.

FIG. 2 shows a case where the processing bag body 2 is connected to the discharge hole 1 in the bathroom floor.
In this embodiment, the member forming the trap structure 13 is removed as shown in FIG. 3, and the drainage hole 3 of the drainage pipe 5 is directly covered with the processing bag 2.

FIG. 4 shows an embodiment of the third aspect of the present invention, in which the processing bag body 2 according to the second aspect of the present invention is combined with a sink strainer 14 which is a typical example of a strainer. The trap structure provided between the sink strainer 14 and the drain pipe 6 is not shown.

The sink strainer 14 includes a short cylindrical portion 17 having a flange portion 16 which is engaged with a drain hole 15 of a sink, ie, a sink, and a mesh tube 1 such as a small mesh stainless steel mesh.
The strainer 8 is fixedly fitted in the drain hole 15 so as to be able to be inserted and removed, and the bottom 19 of the strainer 14 is also made of the same material as the mesh tube 18.

Since the processing bag 2 is sized to completely cover the opening of the drain pipe 6, the oil-containing wastewater is combined so that the whole amount always passes through the processing bag 2.

Of course, some types of sink strainers have a height H of about 5 cm or outside, but in this case, the processing bag body 2 having a small thickness is combined.

[0029]

According to the first aspect of the present invention, the drainage containing oil only flows through the drainage pipe through the processing bag covering the drainage hole, and the oil in the drainage adheres to the surface of the porous processing agent. ,
Since it is gradually decomposed by germinated microorganisms, fungi, and yeasts and is discharged as carbon dioxide, water, and the like, it is possible to remove the oil in the wastewater without the need for a special oil removal operation.

The microorganisms, fungi, yeasts, etc. used exhibit not only the ability to degrade fats and oils, but also produce spores, spores, etc., so that even if the microorganisms exhibiting the resolution are killed, the next spores,
Microorganisms and fungi grown from spores and the like begin to exhibit the same resolution and also have an effect of exhibiting an oil removing action for a long period of time.

Furthermore, the fine powder of activated carbon absorbs offensive odors and off-flavors, so that generation of offensive odors and off-flavors from the drainage system can be prevented.

According to the second aspect of the present invention, there is an effect that a processing bag in which an optimum amount of a processing agent corresponding to an application place, a degree of fats and oils in drainage, and the like is loaded can be selectively used.

According to the third aspect of the present invention, it is possible to provide a strainer in which an oil removing agent is previously installed.
Consumers can simply remove the oil in the wastewater, remove odors and off-odors simply by preparing a strainer that matches the size of the equipment used, and when the function of the oil remover is lost. The effect of restoring the original function is obtained only by replacing the oil removing agent alone.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an example of an embodiment of a processing bag body for oil removal.

FIG. 2 is a schematic vertical sectional view of an example of use of the oil-removing treatment bag shown in FIG.

FIG. 3 is a schematic vertical sectional view showing a structure of a drain hole shown in FIG. 2 before a processing bag body for removing oil is disposed.

FIG. 4 is a schematic longitudinal sectional view of an example of a sink strainer provided with a processing bag for an oil removing agent.

[Explanation of symbols]

 1, treatment agent 2, treatment bag 3, 4, 12 drain hole 5, 6 drain pipe 7 net bag 14 sink trainer 15 drain hole

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) C12M 1/40 C12M 1/40 Z 4D024 C12N 1/00 C12N 1/00 S 4D040 11/14 11/14 E03C 1/264 E03C 1/264 // (C12N 1/00 (C12N 1/00 C12R 1:07) C12R 1:07) (C12N 1/00 (C12N 1/00 C12R 1:05) C12R 1:05) (C12N 1 / 00 (C12N 1/00 C12R 1: 645) C12R 1: 645) F-term (reference) 2D061 DA03 DE15 4B029 AA21 BB02 BB07 CC03 CC10 4B033 NA02 NA12 NA14 NB02 NB14 NB23 NB24 NB27 NB62 NC04 ND11 ND20 NE10 4B015AA72X 4D003 AA01 EA06 EA14 EA19 EA22 EA23 EA25 EA35 FA06 4D024 AA10 AB06 BA02 BA05 BA06 BA11 BA12 BB01 BB06 BC01 DB15 4D040 DD01 DD07 DD31

Claims (3)

[Claims] 1. A method for producing a mixture of fine powder of rock, activated carbon and the like mainly composed of silicic acid, magnesium oxide, ferrous oxide, calcium oxide and the like, and clay or the like, and hardening the mixture into a porous body in the small-grained body. In addition, a large number of processing agents having aerobic and lipolytic microorganisms such as Bacillus, Alcaligenes, yeasts, etc., which contain spores and fungi of spores and spores, are loaded into a coarse net bag, and are treated in a processing bag. A method of removing oil from drainage, wherein the processing bag is disposed so as to cover a drain hole, and drainage containing oil passes through the processing bag and flows down into a drain pipe. 2. A mixture of fine powder of rock, activated carbon or the like, mainly composed of silica, magnesium oxide, ferrous oxide, calcium oxide or the like, and clay or the like, and porous compacted and baked small particles in the porous portion. Bacteria of the genus Bacillus, Alcaligenes, yeasts, etc., which are aerobic and have the ability to degrade fats and oils, spores of fungi, spores are incorporated, and a treatment agent loaded with them is capable of forming a predetermined area and a predetermined thickness. A treatment bag for removing oil from drainage filled in a large amount in a net bag. 3. A treatment bag body for removing oil in drainage according to claim 2, wherein the treatment bag body for removing oil in drainage is detachably mounted in a strainer made of a small mesh net which is detachably disposed in a drain hole. Strainer for removing oil from wastewater.