KR960003925B1 - Microbe cultivating apparatus for waste-water treatment - Google Patents

Abstract

The apparatus has contacting materials (4) installed in the contact oxidizing tank (1) equipped with air supply pipe (9). A rotating body (2), around which fin axes (3) are placed and which is drived by a motor (8), is installed in the contact oxidizing tank (1), and contacting materials (4) are built at equidistance on every fin axis of the rotating body (2). The one end of fin axis (3) is placed to be exposed over the surface of waste water, while a culture chamber (6) having lots of compartments is formed on the peripheral side of contacting materials (4)

Description

Microorganism Culture Device for Wastewater Treatment

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross sectional view showing a main portion of an example of a state in which the present invention is implemented in a wastewater or domestic wastewater purification apparatus.

2 is a partial perspective view illustrating a state in which the contact member is laid on the pin shaft of the rotating body in the present invention.

3 is a perspective view showing an example of a contact material used in the present invention.

4 is a longitudinal sectional view of FIG.

* Explanation of symbols for main parts of the drawings

1: contact oxidation tank 2: rotor

3: pin shaft 4: contact material

5: partition wall 6: culture chamber

8: motor

The present invention is a microorganism culture apparatus for wastewater purification treatment that can increase the cultivation efficiency of aerobic microorganisms to lower the biological oxygen demand (BOD) of the wastewater, when purification of wastewater, such as domestic sewage and industrial wastewater It is about.

In general, domestic sewage, sewage, and industrial wastewater contain and discharge a large amount of organic substances that pollute rivers or coasts, and odor generation due to basic decay is caused by culturing aerobic microorganisms in organic substances contained in such wastewater and wastewater. Only by high-level treatment to be suppressed, the river's fish are killed, so that the environment is seriously polluted and the ecosystem is gradually destroyed, thus achieving a pleasant living environment.

Accordingly, in order to purify sewage and wastewater, a lot of sewage and wastewater treatment devices are being developed. Looking at the structure of the sewage and wastewater treatment devices developed in the meantime, it is generally used to filter out wastewater (SS). Screen tank, anaerobic digestion and decay tanks that rot wastewater, filtration tanks with filtration stones (tostol) and spraying filter beds, contact oxidation tanks that supply air to cultivate aerobic organisms, sedimentation tanks that settle sludge, purified water It consists of a disinfection discharge tank that disinfects and discharges water.

When the wastewater is purified by the above configuration, the efficiency of the wastewater purification treatment is how quickly the culture of aerobic microorganisms in the contact oxidation tank lowers the biological oxygen demand (BOD) of the wastewater. It can be said that it depends on the culture.

However, in the conventional technology of culturing aerobic microorganisms in a contact oxidizing tank, a contact compartment having a large compartment and an open upper and lower part of the culture chamber is laminated with wastewater and wastewater in the contact oxidizing tank, or the contacting agent is randomized. Air is injected through the air supply pipe (9) in the state in which the contained contact container is completely settled in the wastewater, and cultures aerobic microorganisms.

However, when a large amount of high-pressure air is injected into the air supply pipe to supply sufficient oxygen for cultivation of microorganisms, aerobic microorganisms remaining in the wastewater and wastewater are not easily attached to the contact material as the wastewater flows heavily. , There is a problem that difficult to cling microorganisms easily fall off, and when the amount of air injected is lowered due to these problems, there is a problem that the culture capacity of the microorganism is reduced because sufficient oxygen cannot be supplied to the wastewater.

The present invention is to secure the various problems as described above and to maximize the processing efficiency, in particular the rotary disk contact method (RBR) and fluidized bed contact oxidation tank and rotary oxygen supply device (ROTOR) utilized in advanced processing Adopting only three advantages of the AERATOR) can be said to be the biggest feature of the present invention.

The present invention is to provide a device that can increase the cultivation efficiency as quickly as possible by receiving a large amount of oxygen effectively without a drop of microorganisms attached to the contact material even if air is supplied, the contact material is a rotating shaft Even if it is filled in the aeration tank in the fluidized bed without assembling with the assembly, there is no problem due to the characteristics of the contact member shape.

Hereinafter, described in detail by the accompanying drawings as a preferred embodiment of the present invention.

In installing the contact material in the contact oxidation tank 1 in which the air supply pipe 9 is installed at the bottom, the contact oxidation tank 1 is driven so that the rotating body 2 in which several pin shafts 3 are rotated is driven by the motor 8. The cylindrical contact member 4 having a grid-shaped partition wall 5 and a culture chamber 6 formed on the outer circumferential surface of each of the pin shafts 3 of the rotating body 2 is fitted in such a manner as to maintain a constant interval therebetween, One end of the installation is exposed to the water surface of the waste water, as shown in the figure (7) is a support that hangs both ends of the rotating body (2).

The present invention formed in this way is filtered through the large tank of filth, the waste water, the waste water, anaerobic decay tank, the collecting tank, the filter tank is installed after passing through the filtration tank in the state of flowing into the contact oxidation tank (1) in the support (7) When the cylindrical rotor 2 having both ends is rotated by the motor 8, the contact members 4 fitted to the pin shaft 3 are rotated on the pin shaft 3 while being rotated low along the rotor 2. In the oxidation tank (1), both revolution and rotation are performed.

When a part of the cylindrical contact member 4 which rotates and rotates as described above is gradually immersed in the waste water due to the rotation of the rotating body 2, the culture chamber 6 of the cylindrical contact member 4 naturally contains wastewater and wastewater. Is introduced.

In this case, the contact material 4 of the present invention, in which both surfaces are blocked, is provided with an air supply pipe 9 for cultivation of aerobic microorganisms because the culture chamber 6 of the outer circumferential surface is partitioned by a deeply deep honeycomb partition wall 5. Even when the wastewater in the contact oxidation tank 1 flows considerably when the air is injected, the wastewater is not affected by the flowable wastewater once it enters the honeycomb culture chamber 6 of the contact material 4. Will not.

Accordingly, the present invention has an effect that the aerobic microorganisms of the wastewater and wastewater introduced into the culture chamber 6 of the contact material 4 adhere to the circumferential wall 6 of the contact material 4 very effectively.

In particular, the contact materials (4) into which the wastewater flows into the culture chamber (6) after being immersed in the wastewater and wastewater flow to the water surface about 1/3 of the depth of the aeration tank of the wastewater as the rotating body (2) continues to rotate. The wastewater flows into the wastewater. At this time, the wastewater introduced into the culture chamber 6 falls down and creates bubbles on the surface of the wastewater, so that the air is more smoothly supplied to the wastewater wastewater.

In the present invention, in the state in which aerobic microorganisms firmly adhere to the culture chamber 6 of the contact material 4 as described above, the contact material 4 formed on the pin shaft 3 is turned off by the rotation of the rotor 2. As you go up the surface of the wastewater and then back into the wastewater, you will naturally come into contact with the atmosphere, so that the aerobic microorganisms receive oxygen from the atmosphere, which greatly promotes culture.

As described above, the present invention is supplied with the air injected into the air supply pipe 9 at the wastewater flow rate when the contact members 4 formed on the pin shaft 3 of the rotating body 2 are slowly rotated along the rotation of the rotating body. When rising above the surface of the wastewater, the aerobic microorganism generates a lot of bubbles as the wastewater, which has been supplied to the culture chamber 6 of the contact material 4 while receiving oxygen in the air, drops to the surface of the wastewater and generates numerous bubbles. As the present invention more smoothly receives the supply of oxygen, the present invention significantly promotes the growth rate of microorganisms compared to the conventional apparatus in which the contact container is completely settled in the wastewater and wastewater, so that a large amount of microorganisms are cultured in a short time. Therefore, there is an effect to increase the purification efficiency of the waste water, as possible.

Claims (2)

In installing the contact material in the contact oxidation tank 10 in which the air supply pipe 9 is installed at the bottom, the contact oxidation tank 1 is driven so that the rotating body 2 in which several pin shafts 3 are rotated is driven by the motor 8. And the contact member 4 is arranged to be maintained at a predetermined interval for each pin shaft 3 of the rotating body 2, and one end of the pin shaft 3 is installed to be exposed on the surface of the waste water. Microorganism culture apparatus for wastewater purification treatment. The microorganism culture apparatus for wastewater purification treatment according to claim 1, wherein a culture chamber (6) is formed on the outer circumferential surface of the contact member (4) by a grid-shaped partition wall (5).