JP2000308899A - Waste water purification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for stationary places and to allow inexpensive and versatile utilization by casting a machine body in such a manner that its installation position can be changed, supporting a decomposition treatment tank in this machine body and providing the machine body with a waste water suction mechanism, microorganism feed mechanism, aeration mechanism, heating mechanism, treated water return mechanism, or the like. SOLUTION: The waste water purification device 1A is constituted by disposing the decomposition treatment tank 3, the waste water suction mechanism 6, the microorganism feed mechanism 7, the aeration mechanism 8 and the treated water return mechanism 11 on the movable machin body 2 having wheels 13. The outside surface in the upper part of the decomposition treatment tank 3 is provided with a vacuum pump 14 for generating a negative pressure in the decomposition treatment tank 3. The suction port 14a of the vacuum pump 14 is inserted into the decomposition treatment tank 3. In addition, a waste water transporting member 5 capable of sucking up the waste water in an interceptor 4 is connected to the upper part of the decomposition treatment tank 3. The waste water transporting member 5 and the vacuum pump 14 constitute the waste water suction mechanism 6. As a result, fat and oil-containing waste water in the interceptor 4 existing in another position may be sufficiently decomposed and purified without requiring the stationary place.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater purifying apparatus for decomposing and purifying oil / fat-containing wastewater in an interceptor with microorganisms.

[0002]

2. Description of the Related Art This type of wastewater purifying apparatus is provided with a microbial carrier for accumulating microorganisms for separating fats and oils and an air supply device in a collector (Japanese Patent Laid-Open No. 4-179745).
Japanese Patent Application Laid-Open No. Hei 8-229583), and a stationary type equipped with a wastewater receiving chamber equipped with a strainer, and an oil / fat decomposition chamber having a microorganism-implantation member and a supply device for air for blasting. , All of which are stationary and must be installed at each wastewater point.

[0003]

Since the above-mentioned prior art is of a stationary type, it requires a stationary place, the cost is high, and general use is impossible. This is due to the processing ability of the microorganisms used in the prior art, and it is difficult for the conventional microorganisms to quickly treat wastewater containing a high concentration of fats and oils, or fats and oils themselves, It was necessary to take a long time to decompose in the interceptor or in the stationary oil / fat separation chamber.

[0004] However, after that, Patent No. 27870
No. 15, as disclosed in Burgholderia (B
burkholderia cepacia (Bu) belonging to the genus urkholderia and aerobically assimilating the resin at high temperatures
Rkholderia cepadia) has been researched and developed so that even high-concentration fats and oils can be treated quickly. An object of the present invention is to provide an inexpensive and general-purpose wastewater purifying apparatus that does not require a fixed place in view of such conventional technology.

The present invention makes it possible to change the installation position of an airframe,
This machine supports a decomposition treatment tank, and is equipped with a wastewater suction mechanism, a microorganism supply mechanism, a plating mechanism, a heating mechanism, a treated water return mechanism, and the like. It is an object of the present invention to provide a wastewater purifying apparatus capable of decomposing and purifying wastewater with one device.

[0006]

The first concrete means for solving the problems in the present invention is to dispose wastewater in a decomposition treatment tank 3 supported on a body 2 whose installation position can be changed and wastewater in an interceptor 4 as wastewater. A wastewater suction mechanism 6 for sucking and sending the wastewater to the decomposition treatment tank 3 via the transport member 5, a microorganism supply mechanism 7 for supplying aerobic oil-decomposing microorganisms into the decomposition treatment tank 3, and a microorganism in the decomposition treatment tank 3. An air supply mechanism 8 for supplying air, a heating mechanism 9 for heating the inside of the decomposition treatment tank 3, and a treated water return mechanism for returning treated wastewater from the decomposition treatment tank 3 to the interceptor 4 via the treatment water transport member 10. 11 is provided.

[0007] Thus, no fixed place is required, and
Not only the location but also the oil-containing wastewater of the interceptor 4 at another position can be decomposed and purified by one device. A second concrete means for solving the problem in the present invention is a wastewater conveying member of the wastewater suction mechanism 6 in which a wheel 13 is provided at a lower portion of the body 2 so as to be movable in addition to the first concrete means. 5 and the treated water transport member 10 of the treated water return mechanism 11 are connected to the decomposition treatment tank 3 and can be extended to the interceptor 4. Thus, the body 2 can be pushed and moved to the installation position of the interceptor 4 for wastewater treatment.

A third specific means for solving the problem in the present invention is that, in addition to the first or second specific means, the wastewater suction mechanism 6 is provided with a decomposition treatment tank 3 to which a wastewater transport member 5 is connected.
A vacuum pump 14 for reducing the pressure in the upper space of the air pump to a negative pressure, and air circulating means 1 for blowing air discharged from the vacuum pump 14 to at least one of the drainage pipe 15 of the interceptor 4 and the bleeding mechanism 8.
6. Thereby, the vacuum pump 14
Can be used not only for suction of waste water by the waste water suction mechanism 6 but also for cleaning of the drain pipe 15 of the interceptor 4 and supply of air to the stripping mechanism 8.

Fourth concrete means for solving the problem in the present invention is a decomposition treatment tank 3 supported by the movable body 2 and having a capacity larger than the water storage capacity of the interceptor 4, and supported by the body 2. A dewatering mechanism 17 for feeding the dewatered wastewater to the decomposition treatment tank 3, a wastewater suction mechanism 6 for sucking wastewater in the interceptor 4 via the wastewater transport member 5 and sending the wastewater to the dewatering mechanism 17, and a water storage for the interceptor 4. A microorganism supply mechanism 7 for supplying a quantity of aerobic microorganisms in a quantity sufficient to decompose an amount of fat or oil into the decomposition treatment tank 3, a feeding mechanism 8 for supplying air to the microorganisms in the decomposition treatment tank 3, Heating mechanism 9 for heating wastewater in decomposition tank 3
And waste water after treatment from the decomposition treatment tank 3
0 and a treated water return mechanism 11 for returning to the interceptor 4 via the zero.

This eliminates the need for a fixed place,
Not only the location but also the oil-containing wastewater of the interceptor 4 at another position can be decomposed and purified by one apparatus and one batch process.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In the first embodiment shown in FIG. 1, a wastewater purifying apparatus 1A includes a decomposition treatment tank 3, a wastewater suction mechanism 6, a microorganism supply mechanism 7, Mechanism 8 and treated water return mechanism 1
1 is provided. The decomposition treatment tank 3 is a metal or plastic container, formed of a single plate, provided with a heat insulating material on the outer surface of the single plate, or formed in a double tank with an air layer or a heat insulating material interposed therebetween, The upper opening is closed by a lid 21 so as to be openable and closable. Decomposition tank 3
May be larger or smaller than the capacity of the interceptor 4.

A vacuum pump 14 is provided on the outer surface of the upper part of the decomposition processing tank 3 to make the inside of the decomposition processing tank 3 a negative pressure.
Or a wastewater transport member 5 capable of sucking wastewater in the interceptor 4 is connected to the upper part of the decomposition treatment tank 3. The wastewater conveying member 5 and the vacuum pump 14 constitute a wastewater suction mechanism 6, and the wastewater conveying member 5 can be formed by a metal pipe, but is formed by a hose, and a winding mechanism is provided on the body 2 in advance. It is preferable to insert the distal end into the interceptor 4 while pulling out from the winding mechanism.

The vacuum pump 14 sucks the air in the upper space in the decomposition treatment tank 3 to create a negative pressure, and sucks the wastewater in the interceptor 4 through the wastewater conveying member 5 with the negative pressure.
The air discharged from the discharge pipe 14b is
6 is used. The discharge pipe 14b is provided with a flow rate priority valve 22. The flow rate priority valve 22 is connected to an air supply pipe 23 and an exhaust pipe 24 of the blow mechanism 8, and the air supply pipe 23 has a priority. On the side, a required amount of air can be supplied into the decomposition tank 3, and the remaining air is supplied to the drain pipe 15 by an exhaust pipe 24 formed of a pipe or a hose.

The exhaust pipe 24 is provided with a control valve 31. By opening the control valve 31, the air circulation means 1 is opened.
The air of No. 6 is taken out and used for cleaning the inside of the drainage pipe 15, and the offensive odor generated from the decomposition treatment tank 3 can be discharged to the drainage pipe 15. The air supply pipe 23 of the displacing mechanism 8 is bent and stretched around the inner bottom of the decomposition treatment tank 3, and is stretched in a net shape by connecting a number of branch pipes. The air is supplied evenly to the aerobic microorganisms supplied inside. It is preferable that the supplied air be fine bubbles.

The air after being supplied to the microorganisms is sucked again by the vacuum pump 14 in a state containing a trace amount of microorganisms, and is used immediately or the drainage pipe 15 through the exhaust pipe 24.
Supplied to The air supplied to the drainpipe 15 contains a trace amount of microorganisms, and some fats and oils are decomposed even in the drainpipe 15. The microorganism supply mechanism 7 stores liquefied aerobic oil-decomposing microorganisms in a tank 28 mounted on the upper outer surface of the decomposition treatment tank 3.
Numeral 8 is capable of supplying microorganisms from the upper part, and a supply pipe 25 is connected to the lower part. The supply pipe 25 is connected to an air supply pipe 23 via a control valve 26 and an ejector means 27.

When the control valve 26 is opened, the microorganism supply mechanism 7 opens the decomposition treatment tank 3 through the air supply pipe 23.
When the circulating air is flowing in the air supply pipe 23, the microorganism can be supplied in the form of a spray while squeezing the control valve 26 and sucking out the ejector means 27. The microorganism is described, for example, in Japanese Patent No. 787.
No. 015, belonging to the genus Burkholderia and at elevated temperatures,
Such as Burkholderia cepadia, which aerobically assimilate resin,
What can be processed quickly even with high-concentration fats and oils is used.

The heating mechanism 9 is constituted by a heater for heating wastewater in the decomposition tank 3, and a temperature sensor (not shown) is inserted into the decomposition tank 3. The temperature of the wastewater is set to a temperature at which the microorganisms can efficiently operate. The treated water return mechanism 11 includes a treated water transport member 10 having a control valve 30 and formed of a pipe or a hose, and the treated water transport member 10 is connected to the bottom of the decomposition treatment tank 3. The wastewater that is later is returned to the interceptor 4. In the wastewater purification device 1A, the wastewater in the interceptor 4 is batch-processed,
It can be performed by either of the flow treatment, and the decomposition treatment tank 3
When the capacity of the wastewater is larger than the interceptor 4, it is preferable to treat the entire amount of wastewater in one batch process, and when it is small, the batch process is performed in a plurality of times or the flow process is performed.

In the case of using the waste water purifying apparatus 1A to process a blockage of a restaurant or the like, the waste water purifying apparatus 1A is used after the business is over.
Is moved to and installed near the interceptor 4. Then, the wastewater transport member 5 and the treated water transport member 10 are inserted into the interceptor 4,
The exhaust pipe 24 is inserted into the waste water pipe 15. Next, while driving the vacuum pump 14 to make the inside of the decomposition treatment tank 3 a negative pressure, the wastewater in the interceptor 4 is sucked into the decomposition treatment tank 3 via the wastewater conveying member 5, and the exhaust gas is discharged to the flow rate priority valve. The microorganisms are sent to the air supply pipe 23 via the air supply pipe 22, and the control valve 26 is opened to supply the microorganisms together with air into the decomposition treatment tank 3, and the heating mechanism 9 raises the wastewater to a required temperature.

Since the tank 28 is located relatively above the decomposition tank 3, the control valve 26 is opened before the vacuum pump 14 is driven, so that the total amount of microorganisms required for batch processing can be reduced. Alternatively, a part of the amount required for the batch processing or the flow processing may be injected into the decomposition treatment tank 3. By the operation of the vacuum pump 14, the decomposition treatment is performed while the microorganisms in the decomposition treatment tank 3 are removed by the air supply pipe 23 of the removal mechanism 8 and the microorganisms are supplied through the ejector 27 as necessary. The grease is separated in the tank 3 and the drain pipe 15 is cleaned using the exhaust pipe 24.

After the completion of the batch processing or during the flow processing, the purified water from the bottom in the decomposition processing tank 3 is opened by the control valve 30 and intercepted by the interceptor 4 through the processing water transport member 10.
Return to FIG. 2 shows a second embodiment. In this wastewater purifying apparatus 1B, a wastewater suction mechanism 6 is provided with a submersible pump 32 at the tip of a wastewater transport member 5, and a decomposition treatment tank 3 has a closed structure. Instead, a blower 33 for the blast mechanism 8 and the air circulation means 16 is required.

The blower 33 sucks air from the upper part of the decomposition tank 3 through the suction port 14a, and supplies the air to the air supply pipe 23 of the blow mechanism 8 through the supply pipe 25 and the flow rate priority valve 22. Supply, thereby circulating the air, opening the control valve 31 as necessary, and draining the drain pipe 1 with the exhaust pipe 24.
5 is supplied with cleaning air. An air stone 34 is provided in a plurality of branch pipes 23 a of the air supply pipe 23 of the blast mechanism 8, a heating mechanism 9 is also composed of a plurality of heaters, and the microorganism supply mechanism 7 opens the control valve 26 to Is supplied from the tank 28 into the decomposition treatment tank 3 by its own weight.

Incidentally, also in the second embodiment, the blower 3
It is possible to use 3 to feed microorganisms together with purged air via ejector means. FIG. 3 shows a third embodiment, in which a wastewater purifying apparatus 1C includes a decomposition treatment tank 3.
A dehydration mechanism 17 is provided on the upper side of the outside, and the microorganism supply mechanism 7 is provided with a spare tank 37 in addition to the tank 28. The vacuum pump 14 is mounted on the outer surface of the decomposition treatment tank 3, and two suction pipes 38 and 39 are connected. The suction pipe 38 is connected to the dehydrating mechanism 17 and the suction pipe 39 is connected to the tank 28. The exhaust supply of the vacuum pump 14 is preferentially supplied to the air supply pipe 23 via the discharge pipe 14 b and the flow rate priority valve 22, and can be supplied to the drain pipe 15 via the exhaust pipe 24. .

Ejector means 2 provided in air supply pipe 23
7 is connected to a supply pipe 25a for taking out the microorganisms from the spare tank 37, so that the microorganisms can be supplied in a different path from the supply from the tank. The dehydration mechanism 1
7 has a centrifugal dewatering type dehydrator, and a motor 41
Is provided with a dehydrating basket 42 driven by
Can be hermetically closed by a lid 43. Dehydration mechanism 17
By suctioning waste water from the interceptor 4 via the waste water conveying member 5 and supplying the waste water to the dewatering car 42 by making the inside of the container 40 negative by the suction pipe 38 connected to the upper part thereof,
Is rotated at a high speed to separate moisture from solids such as leftovers and vegetable waste, and the moisture flows into the decomposition treatment tank 3. The solid is taken out by opening the lid 43.

The microorganism supply mechanism 7 communicates the tank 28 with the spare tank 37 through a communication pipe 44. The tank 28 is connected to a suction pipe 39, and the tank 28 is connected to the tank 28 by applying a negative pressure to its upper part. Microorganisms are sucked from the reserve tank 37 via the pipe 44 and can be stored in a certain amount. The amount of stored microorganisms in the tank 28 is set to, for example, one batch treatment, and the control valve 26 is opened to supply the microorganisms from the supply pipe 25 to the decomposition treatment tank 3 by its own weight, and the amount of microorganisms becomes insufficient. In the case of (1), the air is additionally supplied together with the air from the supply pipe 25a.

In FIG. 3, reference numerals 46, 47, and 48 denote opening and closing control valves similar to the control valves 26, 30, 31, and the like. These control valves may be opened and closed manually. It may be opened and closed electrically. Further, the dehydrating mechanism 17 may be of a gravity type or may be housed in the upper part of the decomposition tank 3. Note that the present invention is not limited to the above embodiment, and can be variously modified. For example, the components of the three embodiments may be appropriately combined, or the vacuum pump 14, the tank 28, and the like may be directly mounted on the body 2. Further, the body 2 may be transported by a forklift or the like to change the installation position.

[0026]

According to the present invention described in detail above, it is possible to decompose and purify wastewater containing oil and fat not only at one place but also at the interceptor at another place without using a fixed place. It is inexpensive and can be used for general purposes.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing a first embodiment of the present invention.

FIG. 2 is an explanatory sectional view showing a second embodiment.

FIG. 3 is an explanatory cross-sectional view showing a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wastewater purification apparatus 2 Airframe 3 Decomposition tank 4 Interceptor 5 Wastewater conveyance member 6 Wastewater suction mechanism 7 Microorganism supply mechanism 8 Deposition mechanism 9 Heating mechanism 10 Processed water conveyance member 11 Processed water return mechanism 13 Wheels 14 Vacuum pump 15 Drain pipe 16 Air circulation means 17 Dehydration mechanism

Claims (4)

[Claims] 1. A decomposition treatment tank supported by a body whose installation position can be changed, a wastewater suction mechanism for sucking wastewater in an interceptor through a wastewater conveying member and sending the wastewater to the decomposition treatment tank, A microbial supply mechanism that supplies aerobic fat and oil-decomposing microorganisms, a feeding mechanism that supplies air to the microorganisms in the decomposition treatment tank, a heating mechanism that heats the inside of the decomposition treatment tank, and a wastewater after treatment from the decomposition treatment tank A waste water purifying device having a treated water return mechanism for returning the treated water to the interceptor via the treated water conveying member. 2. The apparatus according to claim 1, wherein a wheel is provided at a lower portion of the body so as to be movable, and a waste water transport member of the waste water suction mechanism and a treated water transport member of the treated water return mechanism are connected to a decomposition treatment tank and can be extended to an interceptor. The wastewater purifying apparatus according to claim 1, wherein: 3. The wastewater suction mechanism has a vacuum pump for reducing the pressure in the upper space of the decomposition treatment tank to which the wastewater transport member is connected, and discharges air from the vacuum pump to a drain pipe of an interceptor or a blower mechanism. The wastewater purification device according to claim 1 or 2, further comprising an air circulation unit that sends air to at least one of the wastewater purification units. 4. A decomposing tank supported by a movable body and having a capacity larger than the water storage capacity of the interceptor; a dehydrating mechanism supported by the body to send dewatered wastewater to the decomposing tank; A wastewater suction mechanism that sucks wastewater from the wastewater through a wastewater transport member and sends it to a dehydration mechanism, and supplies a fixed amount of aerobic microorganisms in the decomposition treatment tank in an amount sufficient to decompose oil and fat equivalent to the water storage capacity of the interceptor A microorganism supply mechanism, a mechanism for supplying air to the microorganisms in the decomposition treatment tank, a heating mechanism for heating wastewater in the decomposition treatment tank, and a wastewater treated from the decomposition treatment tank via a treated water transport member. A wastewater purifying apparatus, comprising: a treated water return mechanism for returning to the interceptor.