JPH0340399Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an integrated wastewater treatment device that can purify organic wastewater such as domestic miscellaneous wastewater and then post-process it to a predetermined water quality standard.

[Conventional technology]

Conventionally, organic wastewater has been purified through a series of steps such as purification, precipitation, and filtration. This will be explained based on FIG. 9.

In the figure, 101 is a raw water tank, and wastewater is sent from the raw water tank 101 to a reaction tank 102. Reaction tank 102
The inside of the tube is filled with a plate or net 102A, such as a honeycomb tube, on which microorganisms are attached. 102B is an aeration device that blows air necessary for biological treatment into raw water. 103 is a settling tank for separating solid and liquid, 104 is a filtration device, and 105 is a treated water tank.

[Problem that the invention attempts to solve]

However, in the conventional method, a raw water tank, a reaction tank, a sedimentation tank, a filter tank, and a treated water tank are required to get from wastewater to treated water that meets the final water quality standards.
Since these are each arranged separately, a large installation area is required. Therefore, it has been impossible to arrange the above-mentioned series of equipment inside buildings mainly for small-scale wastewater treatment and reuse such as office buildings and apartment buildings due to space constraints.

[Purpose of invention]

This invention was devised to solve the above-mentioned problems, and the purpose is to purify organic wastewater and then perform post-treatment to meet the specified water quality standards in a single compact system. An object of the present invention is to provide an integrated wastewater treatment device that can be treated with a similar device.

[Means for solving problems]

In order to achieve the above object, the present invention provides a cylindrical tank in which the cylinders are arranged vertically or diagonally, a raw water tank arranged in the upper part of the cylindrical tank to receive raw water, and a cylindrical tank. A biological treatment water pipe that is spirally wound around the raw water tank and performs biological treatment of raw water from the raw water tank, a treated water return pipe that returns biologically treated treated water from the biological treatment water pipe to the inside of the cylindrical tank, and a cylindrical A filtration tank is provided below the raw water tank in the tank and filters the treated water carried from the treated water return pipe, and a treated water tank is provided below the filtration tank in the cylindrical tank to store the filtered treated water. It consists of

[Effect of invention]

According to the present invention, wastewater is supplied to the raw water tank, flows from the raw water tank to the biological treatment water pipe, and is oxidized and decomposed and purified by microorganisms in the biological treatment water pipe. Then,
The biologically treated treated water is transported from the biologically treated water pipe to the treated water return pipe to the filtration tank, where fine colloidal floating matter and sludge are removed and flowed into the treated water tank.

[Embodiments of the invention] Hereinafter, embodiments of the invention will be described in detail with reference to the drawings.

An integrated wastewater purification device according to a first embodiment of the present invention will be explained in detail with reference to FIGS. 1 to 4. FIG.

An integrated wastewater purification device 1 according to a first embodiment of the present invention includes a cylindrical tank 2 arranged so that the cylinder is vertical.
, a raw water tank 3 disposed at the upper part of the cylindrical tank 2 to receive the raw water, a biological treatment water pipe 4 wound spirally around the cylindrical tank 2 to perform biological treatment, and a biological treatment water pipe 4 . an aeration device 5 connected to the lower part and supplying enzyme; a treated water return pipe 6 connected to the flow path outlet 4A of the biological treatment water pipe 4 and running vertically to return it to the central part 2A in the cylindrical tank 2; A filter tank 7 that is provided below the raw water tank in the tank 2 and filters the biologically treated treated water from the treated water return pipe 6, and a filter tank 7 in the cylindrical tank 2.
It consists of a treated water tank 8 provided below.

As shown in FIG. 2, the biological treatment water pipe 4 includes a tube 4B made of synthetic resin and an acrylamide polymer 4 which is a fixing/supporting member arranged on the inner wall surface of the tube 4B.
C, a net-like material 4D such as a non-woven fabric arranged as necessary inside the acrylamide polymer 4C which is a fixing/supporting member to maintain strength, and a net-like material 4
It consists of a processing microorganism (or enzyme) 4E fixedly attached to D.

The filtration tank 7 is required to remove fine colloids when reusing treated water or to ensure wastewater standards, and is constructed of a fibrous filter medium capable of physical filtration and bioadsorption, and is a full-layer filtration system. There is.

In addition, in the figure, 9 is a raw water overflow pipe, which prevents overflow from the opening 3A of the raw water tank 3. 10 is a treated water overflow pipe that keeps the amount of biologically treated treated water constant. 11 is a drain pipe, and a pump 12 is disposed in the middle of the drain pipe.

Next, the operation of this embodiment will be explained.

Raw water is supplied to a raw water tank 3 and flows to a biological treatment water pipe 4 by gravity. The raw water flows down inside the biologically treated water pipe 4 and reaches the channel outlet 4A. Aeration air is supplied from the aeration device 5 into the biological treatment water pipe 4, and treatment microorganisms 4E are attached and grown therein. Therefore, the organic components contained in the raw water are oxidized and decomposed by the treatment microorganisms 4E in the biological treatment water pipe 4.
Raw water is purified. The biologically treated water is supplied to the filter tank 7 through the return pipe 6 due to the water head difference.
Fine colloids are suspended in the biologically treated water to the extent that it can be seen with the naked eye, so this treated water is filtered in a filter tank 7 to remove fine colloidal sludge, microbial debris, etc. It is stored in the treated water tank 8. The treated water is sent to the drain pipe 11 by the pump 12.
is discharged from.

According to this embodiment having the above-mentioned configuration, the biological treatment water pipes 4 are spirally arranged around the cylindrical tank 1, so that the biological treatment water pipes 4 are arranged in a spiral manner around the cylindrical tank 1. Or even more, it is possible to increase the contact area and time between the raw water and the treatment microorganisms 4E, and at the same time, the raw water tank 3, the filter tank 7, and the treated water tank 8 are all housed inside the cylindrical tank 1. In addition, since the filter tank 7 is provided, even fine colloids can be removed, making the conventional settling tank unnecessary.
Therefore, it is possible to compactly construct a series of wastewater purification treatment apparatuses capable of processing from conventional purification to final water quality standards as one apparatus based on the cylindrical tank 1.

In this embodiment, the biological treatment water pipes 4 are arranged around the cylindrical tank 2 from the center to the bottom, but as shown in FIG. 2 (the raw water is pumped up by a pump), and the biological treatment water pipe 4' is made longer than the biological treatment water pipe 4 of this embodiment to increase the contact area and time between the raw water and the treatment microorganisms 4E. Can be many. With this configuration, it is possible to meet the different organic matter concentrations of raw water and the different required levels of treated water.

Further, in this embodiment, the biological treatment water pipe 4 is wound around the cylindrical tank 2 in a single spiral, but as shown in FIG.
can be wrapped around the cylindrical tank 2 in a double spiral. In this case, the raw water descends through the inner biological treatment water pipe 4A'' and rises within the outer biological treatment water pipe 4B''. Therefore, by making the biological treatment water pipe 4'' longer than the biological treatment water pipe 4 of this embodiment, it is possible to increase the contact area and time between the raw water and the treatment microorganisms 4E.

In this embodiment, the treatment microorganisms 4E are fixed and attached to the innermost side of the biological treatment water pipe 4, but as shown in FIG. It is also possible to arrange a shaped member and fill the space between them with the treatment microorganisms 4E'' to form a region where the treatment microorganisms 4E'' contact the raw water without flowing.

Further, in this embodiment, the cylindrical tank 2 is arranged so that the cylinder is vertical, but it can also be arranged with the cylinder inclined.

An integrated wastewater purification device according to a second embodiment of the present invention will be explained in detail with reference to FIGS. 6 and 7.

The integrated wastewater purification device 13 according to the second embodiment of the present invention includes a cylindrical tank 14 arranged so that the cylinder is vertical, and a raw water tank 15 arranged at the upper part of the cylindrical tank 14 to receive raw water. It is wound spirally around the cylindrical tank 14, moves inside from the channel inlet 16B to the channel outlet 16A, and is made of microorganisms or enzymes with a diameter of 1 mm or more.
16′ microbial spherules of about 20 mm (specific gravity 1.01-1.10)
a biological treatment water pipe 16 that performs biological treatment;
an aeration device 17 connected to the lowest end of the biological treatment water pipe 16 and supplying enzymes into the biological treatment water pipe 16; and an upper end portion 14A inside the cylindrical tank 14 connected to the flow path outlet 16A of the biological treatment water pipe 16 and running in the vertical direction. a return pipe 18 that returns the treated water and microbial spheroid 16' to the cylindrical tank 14;
A treated water tank 20 provided below the filtration tank 19 inside
Then, the treated water and microorganism spheroid 16' are discharged from the return pipe 18.
and a separation device 21 (shown in Figure 7) that separates the treated water from the separation device 21 into a filter tank 19.
a microbial spheroid return pipe 23 that circulates the microbial spheroid 16' from the separation device 21 to the raw water tank 14, and a microbial spheroid return pipe 23 that circulates the microbial spheroid 16' from the separation device 21 to the raw water tank 14; ' to the flow path inlet 16B of the biological treatment water pipe 16.

To explain the operation of this embodiment, the microbial spheroid 16' (indicated by a dotted line arrow) whose specific gravity is slightly heavier than water can be raised vertically together with the raw water (indicated by a solid line arrow) by the pressure of the pump 24A. Therefore,
The raw water and the microorganism spheroid 16' pass through the raw water supply pipe 24 by the pump 24A, and reach the channel inlet 16B of the biological treatment water pipe 16. Next, biological treatment water pipe 1
6, the raw water is biologically treated by the microbial spherules 16', descends through the biologically treated water pipe 16, and reaches the flow path outlet 16A as treated water (indicated by a chain line). Then, the raw water and the treated water are transported to the separation device 21 through the return pipe 18 by the pressure of the pump 24A. Treated water and microorganism spheroid 1 in separation device 21
6' is separated, and the treated water flows through the treated water pipe 22 to the filter tank 19 and is stored in the treatment tank 20. On the other hand, the microbial spheroid 16' is transferred to the microbial spheroid return pipe 2.
3 and circulates into the raw water tank 15.

According to the integrated wastewater purification device 13 according to the second embodiment, in addition to the effects of the integrated wastewater purification device 1 according to the second embodiment, the microbial spherules 16' circulate, so that the biological treatment water pipe 16 is not clogged. There's no fear of it happening.
In addition, since the raw water and the microbial spherules 16' are also in contact with each other in the return pipe 18 and the raw water supply pipe 24, the contact time between the raw water and the microbial spherules 16' is increased, and the purification ability of the raw water is improved by the first implementation. It will be better than the example case.

Further, in this embodiment, the cylindrical tank 14 is arranged so that the cylinder is vertical, but it can also be arranged with the cylinder inclined.

Furthermore, in this embodiment, the biological treatment water pipe 16
The biological treatment water pipe is wound around the cylindrical tank 14 in a single spiral shape, but as shown in FIG. It can also be wrapped around.

An integrated wastewater purification device 25 according to a third embodiment of the present invention is shown in FIG.

The third embodiment is an embodiment of the integrated wastewater purification device 13 according to the second embodiment. In the second embodiment, the raw water is biologically treated while descending through the biological treatment water pipe 16 from the upper part to the lower part of the cylindrical tank 14, but in this embodiment, the raw water is treated with the microorganism spheroid 1.
6' as well as the air lifting force of the aeration device 17, biological treatment is carried out while moving up the biological treatment water pipe 16'' from the lower part to the upper part of the cylindrical tank 14.

According to the integrated wastewater purification device 25 according to the third embodiment, the treated water return pipe 18 and the raw water supply pipe 24 of the second embodiment are unnecessary, so that the structure of the device is simplified.

[Effect of idea]

As described above, the present invention has the effect that organic wastewater can be purified and then post-treated to obtain a predetermined water quality standard using a single, compact device.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an integrated wastewater treatment device according to the first embodiment of the present invention, Fig. 2 is a cross-sectional explanatory diagram of a biological treatment water pipe, and Fig. 3 is a first example of a biological treatment water pipe of the integrated wastewater treatment equipment. FIG. 4 is a configuration diagram of a second modification of the biological treatment water pipe of the same type wastewater treatment equipment, FIG. 5 is a cross-sectional explanatory diagram showing a modification of the biological treatment water pipe, and FIG. A configuration diagram of an integrated wastewater treatment device according to a second embodiment of the present invention, FIG. 7 is a sectional view of a separation device in the integrated wastewater treatment device, and FIG. 8 is an integrated structure diagram according to a third embodiment of the present invention. FIG. 9 is an explanatory diagram of a series of conventional wastewater treatment devices. 1... Integrated wastewater treatment device according to the first embodiment of the present invention, 2... Cylindrical tank, 3... Raw water tank, 4... Biological treatment water pipe, 4E... Treatment microorganism or enzyme, 5
... Aeration device, 6 ... Treated water return pipe, 7 ... Filter tank, 8 ... Treated water tank.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cylindrical tank whose tubes are arranged vertically or diagonally, a raw water tank placed at the top of the cylindrical tank to receive raw water, and the surroundings of the cylindrical tank. A biological treatment water pipe that is wound in a spiral shape and performs biological treatment of raw water from the raw water tank, a treated water return pipe that returns biologically treated treated water from the biological treatment water pipe to the inside of the cylindrical tank, and a cylindrical tank. A filtration tank is installed below the raw water tank inside the tank and filters the treated water carried from the treated water return pipe, and a treated water tank is installed under the filtration tank inside the cylindrical tank and stores the filtered treated water. An integrated wastewater treatment device characterized by comprising: (2) The integrated wastewater treatment device according to claim 1, wherein a treatment microorganism or enzyme is fixed and attached to the inner wall surface of the biological treatment water pipe. (3) The integrated wastewater treatment device according to claim 1, wherein the inside of the biological treatment water pipe contains treatment microorganisms or enzymes in a fixed state. (4) A claim for utility model registration characterized in that the inside of a biologically treated water pipe contains microorganisms or enzyme spherules that move from the inlet to the outlet of the biologically treated water pipe and circulate back to the inlet of the channel. An integrated wastewater treatment device according to scope 1. (5) The integrated wastewater treatment according to claim 4 of the utility model registration claim, characterized in that a separation device for separating treated water from microorganisms or enzyme spherules is installed in the middle of the treated water return pipe. Device. (6) The integrated wastewater system according to claim 1, wherein the biological treatment water pipe is wound spirally around the cylindrical tank from the center to the bottom of the cylindrical tank. Processing equipment. (7) The integrated wastewater treatment according to claim 1 of the utility model registration claim, characterized in that the biological treatment water pipes are wound spirally around the cylindrical tank from the upper part to the lower part of the cylindrical tank. Device. (8) The integrated wastewater treatment device according to claim 1, wherein the biological treatment water pipe is arranged in a double spiral around the cylindrical tank.