JP2007319818A - Grease trap liquid treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable high-speed decomposition of organic matter, especially oil and fat, in a grease trap by microorganisms with a low cost and simple structure. <P>SOLUTION: A grease trap liquid treatment apparatus comprises a floating liquid recovery pipe 3c which recovers floating liquid in the grease trap 1, a recovery pump 4c for recovering the floating liquid with the floating liquid recovery pipe 3c, a microorganism supporting part 15 with which the recovered floating liquid is brought into contact, and a circulating pipeline 21 which circulates the recovered floating liquid in the grease trap 1. In the circulating pipeline 21, a mixing part 22 in which a plurality of parts with a small pipeline cross section and a plurality of parts with a large pipeline cross section are disposed is formed in the direction of liquid movement. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a grease strap installed in a drainage section of a restaurant or the like.

A grease trap for temporarily storing drainage is installed in a drainage section of a restaurant or the like.
The grease trap is a tank intended to collect the oil in a state where the wastewater containing oil, organic matter contained in food, suspension, etc. is temporarily stored and the oil is floated and separated.
Further, conventionally, attempts have been made to prevent decay due to decomposition of organic matter by decomposing the organic matter in the grease trap with another processing apparatus.

For example, in Patent Document 1 below, as a fat-and-oil decomposition and purification device for commercial kitchen wastewater, wastewater containing animal and vegetable fats and oils is passed through a filtration tank containing a microbial habitat, and the solid content is filtered. An oil and fat adsorbent is disclosed that is decomposed and purified.
Patent Document 2 listed below discloses a scum collecting means for collecting the contained liquid from the bottom of the grease trap, and the contained liquid from the scum collecting means is separated into a solid liquid to decompose the solid content by microorganisms and separate the separated liquid. Disclosed is a processing apparatus including a separation processing apparatus.

Japanese Patent Laid-Open No. 11-28484 “Drainage and Fat Decomposition and Purification Device” Japanese Patent Application Laid-Open No. 2004-154730 “Treatment apparatus for grease trap liquid”

However, the above conventional techniques have the following problems.
Any of the above prior arts requires a step of solid-liquid separation of organic substances in the grease trap. Moreover, the method of decomposing by a microorganism after making an organic substance such as fats and oils into a solid matter has a problem that it takes time to process.
On the other hand, a method of disposing oil and fat etc. by microorganisms by providing an auxiliary tank near the grease strap is also conceivable, but in the method of providing an aeration device in the auxiliary tank, the fat and oil floats to the liquid surface due to bubbles and decomposes There has been a problem that cannot be performed well.

This invention is made | formed in view of the said subject, and the objective of this invention is providing the processing apparatus of the grease trap liquid which can solve the said subject.
An example of a specific purpose is as follows.
(A) An organic substance, particularly an oil and fat in the grease trap can be decomposed at high speed by microorganisms with an inexpensive and simple configuration.
(B) Provided is a processing apparatus capable of reducing the foul odor by rapidly decomposing oil and fat contained in kitchen wastewater such as a restaurant and reducing or eliminating the trouble of manually removing the oil and fat.
In addition, the subject of invention other than having described above, its solution means, and its effect are demonstrated in detail in description in the specification mentioned later.

  Although the present invention can be expressed in many ways, for example, typical ones are configured as follows. In each of the following inventions, each symbol is shown as an example for easy understanding of the correspondence with the embodiment described later, and each component of the present invention corresponds to the configuration related to the symbol described in the embodiment. It goes without saying that it is not limited.

The grease trap liquid processing apparatus according to the first aspect of the present invention includes an auxiliary tank 2 provided at a position different from the grease strap 1, a floating liquid recovery means for recovering the floating liquid of the grease strap 1, and the floating liquid recovery means. The recovery pump 4 for recovering the floating liquid, the liquid supply line 5 for sending the floating liquid of the grease strap 1 to the auxiliary tank 2, and provided in the auxiliary tank 2 and recovered in the grease strap 1. Microorganism holding means 15 in contact with the floating liquid, return pipe 28 for returning excess liquid in the auxiliary tank 2 to the grease trap 1, a circulation pipe 21 for circulating the liquid in the auxiliary tank 2, and the auxiliary A circulation pump 20 for sending the liquid and gas in the tank 2 into the circulation line 21 in a pressurized state;
The circulation pipe 21 is provided with a mixing portion 22 in which a plurality of portions having a smaller pipe cross-sectional area and a portion having a larger pipe cross-sectional area with respect to the liquid traveling direction are arranged, and the gas is pressurized. The gas and the liquid are mixed by passing the liquid.

In the first aspect of the present invention, it is preferable that a floating liquid collecting means is also provided in the auxiliary tank, and the liquid sent to the circulation pipe by the circulation pump is used as the floating liquid in the auxiliary tank. This is because even in the auxiliary tank, the floating liquid contains a large amount of oil and fat.
The circulation pump and the circulation pipe line (mixing part) can be provided inside or outside the auxiliary tank.

The number of portions with a small pipe cross-sectional area is preferably about 5 to 100. The gas includes air and oxygen. “Mixing gas and liquid” includes not only mixing of fine oil bubbles into liquid such as oil and fat and water but also the case where gas is dissolved in water.
In this specification, the “floating liquid” refers to a liquid that contains oil and fat, water, and other organic substances that float on the upper layer of the tank.

In the grease trap liquid processing apparatus according to the second aspect of the present invention, the levitated liquid collecting means for collecting the levitating liquid, the recovery pump 4 for collecting the levitating liquid by the levitating liquid collecting means, and the collected levitating liquid contact each other. A microorganism holding means 15; and a circulation line 21 for circulating the recovered floating liquid and gas through the grease trap 1,
The circulation pipe 21 is provided with a mixing portion 22 in which a plurality of portions having a smaller pipe cross-sectional area and a portion having a larger pipe cross-sectional area with respect to the liquid traveling direction are arranged, and the gas is pressurized. The gas and the liquid are mixed by passing the liquid.
The recovery pump and the circulation line (mixing unit) can be provided inside or outside the grease trap, respectively. The floating liquid collecting means and the microorganism holding means are provided in the grease strap.

A third invention is the invention according to any one of the first to second inventions, wherein a plurality of resistance walls 24 are erected on the circulation conduit 21, and one is provided on the inner peripheral wall of the circulation conduit 21. The mixing portion 22 is configured by shifting the standing position of the resistance wall 24 from the standing position of the previous resistance wall 24.
In the third invention, as an example of “shifting the standing position of one resistance wall from the standing position of the previous resistance wall”, the resistance walls are alternately erected on the inner peripheral wall as will be described in an embodiment described later. There is a configuration to do.

  According to a fourth invention, in the invention according to any one of the first to third inventions, the levitation liquid recovery means is constituted by a levitation liquid recovery pipe 3, and the levitation liquid recovery pipe 3 is disposed at an outer edge. A plurality of suction openings 12, and the floated liquid recovery pipe 3 is connected to the grease trap 1 so that the lowest water surface 14 of the grease strap 1 is positioned above the lower end 13 of the suction opening 12. It is characterized by being erected in the strap 1.

  A fifth aspect of the invention is the invention according to any one of the first to second aspects of the invention, further comprising a mixing communication pipe 31 that guides the floating liquid collected by the floating liquid collecting means directly to the mixing unit 22. It is characterized by having constituted.

A sixth aspect of the invention is the invention according to any one of the first to fifth aspects of the invention, wherein the microorganism holding means 15 is configured by storing the microorganism carrier 16 in a floating state in a basket body 17 and collecting it. A cage body communication conduit for supplying the floated liquid so as to be ejected to the cage body 17 is provided.
There are no particular limitations on the material and shape of the cage body. A basket body is composed of a net or a lattice. The cage body only needs to have a function of accommodating the microorganism-supported material at a higher density than other regions.

  According to a seventh invention, in the sixth invention, there is provided a mixing communication conduit 31 for guiding the collected floating liquid to the mixing section 22, and the liquid exiting the mixing section 22 is guided to the basket body communication conduit. And

The effects of each invention will be described below.
According to the first aspect of the invention, the velocity of the liquid increases and the static pressure decreases at the portion where the pipe cross-sectional area becomes small, and the velocity of the liquid decreases and the static pressure increases at the portion where the pipe cross-sectional area becomes large. In the pressurized state of the circulation pump, the gas is mixed with the liquid by repeating such a static pressure change a plurality of times. For this reason, compared with the structure using the conventional aeration apparatus, decomposition | disassembly of mainly fats and oils by an aerobic microorganism can be accelerated | stimulated. Therefore, malodor can be reduced, and the trouble of manually removing oil and fat can be reduced or omitted.

If it is the 2nd invention, the same effect as the 1st invention can be acquired. Moreover, since it can process in a grease trap, an auxiliary tank is unnecessary and it saves space.
If it is 3rd invention, a mixing part can be comprised by the simple and cheap structure of standing up a some resistance wall in an inner peripheral wall.

According to the fourth aspect of the invention, the floating liquid can be recovered satisfactorily with a simple and inexpensive configuration in which a plurality of openings or notches are provided on the outer edge of the recovery tube. In addition, according to the present invention, the diameter of the recovery pipe, the width and number of the suction openings, the recovery pump, even for a wide variety of grease traps with different amounts of oil and fat per unit time and different types of discharged organic matter There is an advantage that an optimum levitation liquid recovery device can be configured only by appropriately selecting the capacity of the above.
In addition, since the floating liquid collection pipe is inexpensive, a plurality of floating liquid collection pipes can be provided in one grease strap without incurring costs, and the collection of the floating liquid can be made more efficient.
If it is 5th invention, the floating liquid containing a large quantity of air can be guide | induced to a mixing part, and fats and oils, a water | moisture content, and gas can be mixed efficiently.

According to the sixth aspect of the present invention, the microorganisms supported on the microorganism-supported substance can be efficiently brought into contact with the floating liquid, and decomposition by the microorganisms can be promoted.
If it is the 7th invention, after mixing the floating liquid containing a large quantity of air in a mixing part, it can guide to a basket body and can promote decomposition by microorganisms.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing a first embodiment of a grease trap processing apparatus according to the present invention.
This processing apparatus has a grease trap 1 and an auxiliary tank 2 attached to the grease strap 1 as main components.

  The grease strap 1 includes a floating liquid recovery pipe 3 as the floating liquid recovery means, and a recovery pump 4 that serves as power for recovering the floating liquid. In addition, the auxiliary tank 2 includes a levitation liquid recovery pipe 3a, a recovery pump 4a, a microorganism holding unit 15 in contact with the levitation liquid of the grease trap 1, a circulation line 21 for circulating the liquid in the auxiliary tank 2, and a circulation The mixing part 22 provided in the pipe line 21 and the circulation pump 20 which sends the liquid and gas in the auxiliary tank 2 to the circulation pipe line 21 in a pressurized state are provided.

Between the grease strap 1 and the auxiliary tank 2, a liquid supply line 5 that sends the floating liquid of the grease strap 1 to the auxiliary tank 2, and a return line 28 that returns excess liquid from the auxiliary tank 2 to the grease strap 1. Is provided.
The grease trap 1 shown in FIG. 1 includes a first compartment tank 7 in which waste liquid from a kitchen device (not shown) first enters from an inlet 37, a second compartment tank 8 provided with a floating liquid recovery pipe 3, and a third compartment tank. 9 and a fourth partition tank 11 facing the discharge port 10.

First, the floating liquid recovery pipe 3 will be described.
FIG. 2A is an enlarged view showing an example of the floating liquid recovery pipe 3, and FIG. 2B is a plan view thereof.
The floating liquid recovery pipe 3 is configured by a circular recovery pipe having a plurality of suction openings 12 on the outer edge. The suction openings 12 are arranged at substantially equal intervals on the outer edge so that the floating liquid can be sucked evenly from around 360 °.

  In the configuration shown in FIG. 2, the suction opening 12 is formed by providing four rectangular slits (square notches). The suction opening 12 may be formed as a rectangular opening instead of a slit. The lower ends 13 of the plurality of suction openings 12 are all adjusted to have the same height.

The height H to the tip of the suction opening 12 is set such that there is a sufficient margin for the fluctuation width of the water surface of each grease strap 1 to be attached.
For example, H is set to about 50 mm to 100 mm. When the floating liquid recovery pipe 3 having the suction opening 12 is attached to the grease lap, the suction opening 12 has a margin h more than the lowest water surface 14 expected for the grease lap. The floating liquid recovery pipe 3 is erected so that the lower end 13 is positioned.
As shown in FIG. 2B, the opening width L of the suction opening 12 is set to a width that allows the floating liquid to be continuously collected by the balance between the suction force of the recovery pump and the surface tension of the floating liquid.

As shown in FIG. 1, the microorganism holding unit 15 provided in the auxiliary tank 2 employs a microorganism carrier 16 accommodated in a pair of basket bodies 17 and 17. An example of the microorganism-supported material 16 is a material obtained by shaping a foamed material such as polyethylene into about 10 mm to 30 mm.
Further, in the auxiliary tank 2, a floating liquid recovery pipe 3a, a recovery pump 4a for sucking the floating liquid, and a first supply pipe 18 for discharging the recovered floating liquid toward the car body 17 by the recovery pump 4a. And are provided. The first supply pipe 18 is an example of the basket body communication pipe.

  Further, a suction opening 27 of the circulation pipe 21 is provided near the cage body 17 in the auxiliary tank 2 so that the liquid in the auxiliary tank 2 collected by the circulation pump 20 is returned to the auxiliary tank 2 again. It is.

Next, the mixing part 22 formed in the circulation conduit 21 will be described.
3A is a longitudinal sectional view showing an example of the mixing portion 22 provided in the circulation pipe 21, and FIG. 3B is a transverse sectional view thereof.
The mixing unit 22 has a configuration in which a plurality of resistance walls 24 are arranged at intervals X in the circulation conduit 21. The resistance wall 24 is disposed so as to be substantially orthogonal to the traveling direction of the liquid, and the resistance walls 24 before and after the one resistance wall 24 are positioned on the opposite side of the inner peripheral wall with respect to the one resistance wall 24. Are arranged alternately. The distance X between the resistance walls 24 is set to be shorter (for example, X <D) than the lateral width of the mixing portion 22 (corresponding to the diameter D in the case of a circular tube).
Further, as shown in FIG. 3B, the standing distance of each resistance wall 24 from the inner peripheral wall is such that a gap d is formed between one resistance wall 24 and the front and rear resistance walls 24. It is set. When the grease strap to be installed has a large amount of oil and fat and has high viscosity, the gap d is increased so that the mixing portion 22 can pass through without clogging.

  Further, in the apparatus shown in FIG. 1, a floating liquid recovery pipe 3b, a recovery pump 4b, and a liquid return pipe 35 are also provided in the fourth partition tank 11 of the grease strap 1, and the fourth partition tank 11 is floated on the second partition tank 8. The liquid is returned.

The operation of the processing apparatus having the above configuration will be described.
The floating liquid recovered from the floating liquid recovery pipe 3 in the second partition tank 8 of the grease strap 1 is sent to the auxiliary tank 2 via the liquid supply pipe 5. The levitation liquid sent into the auxiliary tank 2 contains oil and fat and moisture, but the oil and fat also floats on the water surface in the auxiliary tank 2.

  The floating liquid is collected from the floating liquid collection pipe 3a in the auxiliary tank 2, and is ejected by the collection pump 4a through the first supply pipe 18 to the microorganism carrier 16 of the cage body 17. Here, since the microorganism-supported material 15 is restricted in movement in the cage body 17 and exists in a dense manner, the floating liquid discharged from the first supply pipe 18 efficiently contacts the microorganism. .

  Further, since the floating liquid recovery pipe 3a sucks not only oil and fat but also air, the floating liquid discharged toward the cage body 17 contains a large amount of air. Therefore, the floating liquid containing a large amount of oil and fat is mixed with oxygen in the air by the first supply pipe 18 and is directly ejected toward the microorganism-supported material 15, so that the oil and fat is decomposed by microorganisms. Is promoted.

On the other hand, since the suction opening 27 of the circulation pipe 21 is provided near the cage body 17 in the auxiliary tank 2, the floating liquid containing air is sucked by the suction force of the circulation pump 20, and the circulation pump 20 The pressurized air and the floating liquid are sent together to the mixing unit 22.
In the mixing unit 22, the pipe cross-sectional area is small at the position where the resistance wall 24 is erected, and the pipe cross-sectional area is large at the position where the resistance wall 24 is not present. Air and microorganisms will mix. Further, the liquid that is pumped in the mixing unit 22 is repeatedly refined by repeatedly colliding with each of the resistance walls 24 that are alternately projected, and the liquid is fined when it exits the mixing unit 22. Oil and fat content, moisture, fine bubbles (or oxygen dissolved in moisture), and microorganisms are mixed together and returned to the upper position of the auxiliary tank 2. Therefore, the aerobic microorganism can be easily worked.

  On the other hand, in the configuration in which the aeration apparatus is provided in the auxiliary tank 2 as in the prior art, the liquid is not in a pressurized state, and the oil and fat is merely floated in the auxiliary tank 2 and floats to the liquid surface due to the specific gravity difference. Therefore, a good mixed state with oil and fat, oxygen, and microorganisms hardly occurs.

  The overflow partition tank 29 in the auxiliary tank 2 is provided with a return pipe 28, and excess liquid in the auxiliary tank 2 is returned from the return pipe 28 to the second partition tank 8 of the grease strap 1. . Accordingly, the oil and fat floating on the grease wrap 1 is decomposed by microorganisms in the auxiliary tank 2 and only the remaining water is returned to the grease wrap 1, so that the liquid in the auxiliary tank 2 overflows. There is nothing.

Further, since the floating liquid recovery pipe 3b provided in the fourth partition tank 11 of the grease strap 1 is returned to the second partition tank 8 by the liquid return pipe 35, the fat and oil content of the floating liquid is discharged from the discharge port 10. Can be suppressed.
In such an oil and fat decomposition apparatus, even if there is a large amount of waste liquid containing fat and oil, an auxiliary tank dedicated for oil and fat decomposition is provided, so that a large amount of fat and oil is prevented from being discharged from the grease strap. be able to.

(Second Embodiment)
FIG. 4 is a longitudinal sectional view of a grease strap 1 for explaining a second embodiment of the present invention, and FIG. 5 is a plan view thereof.
While the first embodiment has a configuration in which the auxiliary tank 2 is provided separately from the grease strap 1, the second embodiment has a feature that the grease strap 1 has a built-in or attached device for decomposing the floating liquid. It is a feature.

  This processing apparatus is recovered by a pair of floating liquid recovery pipes 3c and 3c, a pair of cage bodies 17 and 17, a recovery pump 4c that sends the floating liquid to the mixing unit 22 in a pressure-feed state, and a floating liquid recovery pipes 3c and 3c. Mixing communication pipes 31 and 31 for sending the floated liquid to the mixing section 22 and second supply pipes 32 and 32 for returning the liquid exiting the mixing section 22 to the pair of cage bodies 17 and 17 are provided. The second supply pipe 32 is an example of the basket body communication pipe. In addition, the circulation line 21 is configured by the mixing communication pipe 31, the mixing unit 22, and the second supply pipe 32. In this configuration, the recovery pump 4 c also serves as a circulation pump for the circulation line 21.

  According to this embodiment, since the plurality of floating liquid recovery pipes 3c are provided in the grease strap 1, the amount of floating liquid recovered per unit time can be increased. Further, since the oil and fat collected from the floating liquid collection pipe 3c is directly supplied to the mixing unit 22 in a state containing a large amount of air, the oil and fat to be acted on by the microorganism can be well mixed with oxygen. .

  Furthermore, since the floating liquid that has passed through the mixing unit 22 falls from above to drop onto the microorganism carrier 16 in the cage bodies 17, 17, the movement of the microorganism carrier 16 in the cage bodies 17, 17 increases, and the oil and fat The contact state between the minute and the microorganism can be improved, and the decomposition by the microorganism can be promoted.

  Further, as shown in FIG. 5, the pair of floating liquid recovery pipes 3c and 3c are arranged on almost one diagonal line of the grease strap 1, and each distance is about 1/4 of the diagonal length from the square corner. Since the floating liquid recovery pipes 3c and 3c are provided, it is possible to suppress the localized distribution of the oil and fat components floating on the water surface of the grease strap 1.

  Further, the pair of cage bodies 17 and 17 are arranged on the other diagonal line of the grease strap 1 and arranged at predetermined positions from the corners of the quadrangle, so that the distance from the pair of floating liquid recovery pipes 3c and 3c is set. It is possible to suppress the collection of the floating liquid in the floating liquid recovery pipes 3c and 3c from being hindered by the downstream flow of the liquid dropped from the second supply pipes 32 and 32.

  Further, a flow from the surface layer water to the lower layer water is formed at the position where the pair of cage bodies 17 and 17 are disposed, while the surface water is sucked at the position where the pair of floating liquid recovery pipes 3c and 3c is disposed. Therefore, in the entire grease trap 1, the mixed state of the oil and fat contained in the floating liquid and the microorganisms can be kept well, and the decomposition of the oil and fat can be accelerated.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the gist of the present invention.
(1) In the configuration shown in FIG. 1, the opening 27 of the circulation pipe 21 is provided near the cage body 17 and the air sucked together with the floating liquid is sucked. It is also possible to provide an air injection pipe (not shown) at a position facing 27 and press-fit air or oxygen. With this configuration, the amount of oxygen necessary for the microorganisms can be sent to the mixing unit 22 without depending on the amount of air (oxygen amount) flowing through the first supply pipe 18.

(2) In each of the above embodiments, a microorganism injection device may be provided in the grease strap or the auxiliary tank.
(3) You may replace the structure of the auxiliary tank shown in 1st Embodiment with each component provided in the grease strap demonstrated in 2nd Embodiment. However, as shown in FIG. 1, the liquid supply line 5 and the return line 28 are required.

(4) In the present invention, a plurality of auxiliary tanks may be provided in one grease strap. The form in which a plurality of auxiliary tanks are provided may be in parallel or in series with respect to the flow of floating liquid.
In the case of the parallel arrangement, for example, the number of auxiliary tanks corresponding to the number of the floating liquid recovery pipes provided in the grease strap is provided. In the case of series connection, for example, a primary auxiliary tank and a secondary auxiliary tank are provided, and the floating liquid recovered by the floating liquid recovery pipe provided in the primary auxiliary tank is decomposed in the secondary auxiliary tank having a small capacity. This is the case.

FIG. 1 is a schematic configuration diagram showing a first embodiment according to the present invention. FIG. 2 (A) is an enlarged view of the levitation liquid recovery pipe, and FIG. 2 (B) is a plan view thereof. 3A is a longitudinal sectional view of the mixing portion, and FIG. 3B is a transverse sectional view thereof. FIG. 4 is a longitudinal sectional view of a second embodiment according to the present invention. FIG. 5 is a plan view of a second embodiment according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Grease strap, 2 ... Auxiliary tank, 3, 3a, 3b, 3c ... Floating liquid collection pipe (floating liquid collection means), 4, 4a, 4b, 4c ... Collection pump, 5 ... Liquid feed pipe line, 12 ... Suction For opening, 13 for lower end of suction opening, 14 for lowest water surface, 15 for microorganism holding part (microorganism holding means), 17 for basket body, 18 for first supply pipe (basin body communication pipe line) 20 ... circulation pump, 21 ... circulation pipe, 22 ... mixing section, 24 ... resistance wall, 28 ... return pipe, 31 ... mixing communication pipe, 32 ... second supply pipe (cage body communication pipe).

Claims (7)

An auxiliary tank provided at a position different from the grease lap, a levitation fluid recovery means for recovering the levitation liquid of the grease lap, a recovery pump for recovering the levitation liquid by the levitation fluid recovery means, and the levitation of the grease lap A liquid feed line for sending the liquid to the auxiliary tank, a microorganism holding means provided in the auxiliary tank and in contact with the floating liquid collected in the grease lap, and excess liquid in the auxiliary tank to the grease lanyard A return return line, a circulation line for circulating the liquid in the auxiliary tank, and a circulation pump for sending the liquid and gas in the auxiliary tank to the circulation line in a pressurized state,
The circulation pipe is provided with a mixing portion in which a plurality of portions having a smaller pipe cross-sectional area and a portion having a larger pipe cross-sectional area with respect to the liquid traveling direction are disposed, and the liquid pressurized with the gas An apparatus for treating the grease trap liquid, wherein the gas and the liquid are mixed by passing a gas through the liquid. Floating liquid collecting means for collecting the floating liquid, a collection pump for collecting the floating liquid by the floating liquid collecting means, a microorganism holding means for contacting the collected floating liquid, the collected floating liquid and gas A circulation conduit that circulates with a grease wrap,
The circulation pipe is provided with a mixing portion in which a plurality of portions having a smaller pipe cross-sectional area and a portion having a larger pipe cross-sectional area with respect to the liquid traveling direction are disposed, and the liquid pressurized with the gas An apparatus for treating the grease trap liquid, wherein the gas and the liquid are mixed by passing a gas through the liquid. The processing apparatus for grease trap liquid according to any one of claims 1 to 2, wherein a plurality of resistance walls are erected on the circulation pipe, and one resistance wall is formed on the inner peripheral wall of the circulation pipe. A processing apparatus for grease trap liquid, wherein the mixing unit is configured by shifting the standing position from the standing position of the previous resistance wall. 4. The grease trap liquid processing apparatus according to claim 1, wherein the levitated liquid collecting means is configured by a levitated liquid collecting pipe, and the levitated liquid collecting pipe is a plurality of arranged at an outer edge. And the floating liquid collection pipe is erected in the grease strap so that the lowest water surface of the grease strap is positioned above the lower end of the suction opening. Strap liquid processing equipment. The processing apparatus for grease trap liquid according to any one of claims 1 to 2, further comprising a mixing communication pipe that guides the floating liquid collected by the floating liquid collecting means directly to the mixing section. The grease trap liquid processing device. The treatment apparatus for grease trap liquid according to any one of claims 1 to 5, wherein the microorganism holding means is configured to contain a microorganism carrier in a floating state in a cage, and the recovered floating liquid is A processing apparatus for grease trap liquid, provided with a basket body communication pipe that is supplied so as to be ejected to the basket body. The grease trap liquid processing apparatus according to claim 6, wherein a mixing communication pipe that guides the collected floating liquid to the mixing section is provided, and the liquid that exits the mixing section is guided to the basket body communication pipe. Strap liquid processing equipment.

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