KR200254996Y1 - aeration tub installed bamboo contact material and sewage treatment apparatus adapted to the aeration tub - Google Patents

Abstract

The present invention relates to an aeration tank equipped with a bamboo contact material and a sewage purification apparatus using the same.

Description

Aeration tub installed bamboo contact material and sewage treatment apparatus adapted to the aeration tub}

The present invention relates to an aeration tank equipped with a bamboo contact material and a sewage purification apparatus using the same.

In the conventional aeration tank of a filthy water purification apparatus, a contact material such as plastic or synthetic fiber is installed, and there is a contact aeration type aeration tank using a so-called biofilm method that adsorbs and oxidatively decomposes organic substances in sewage by the action of a biofilm generated on the surface of the contact material. . This contact aeration method is a method in which a microbial film is formed on the surface of the contact material in a planar manner. Therefore, since the microbial membrane is planar, the ability of the microorganism to decompose organic matter is also flat, and only a corresponding treatment can be performed, so that excess sludge or exfoliated sludge is generated and continues to be deposited as it is. Thereby, there is a problem in that not only the organic matter in the sewage but also the surplus sludge or the peeled sludge can be sufficiently decomposed and the amount of deposit deposited is extremely small.

As a conventional wastewater purification apparatus for improving this, what is disclosed by Unexamined-Japanese-Patent No. 7-265892, for example is proposed.

In this sewage purification apparatus. The introduced sewage passes through a reticulated shelf made of bamboo placed in multiple stages in the aeration tank and a shelf support for supporting the shelf. At this time, a floc (FLOC), which is a microbial mass, is formed on the shelf, and organic matter decomposition is violently caused by the floc to purify the sewage, so that the amount of sediment deposition of sludge is extremely small.

However, the shelf of the filthy water purification apparatus is woven with reticulated bamboo, and in order to produce such a shape, the bamboo must be split long and thin. Thus, considerable time and expense in cutting and weaving bamboo can be a factor in raising the unit cost of the device.

In addition, in order to install the reticular shelf or shelf support in the aeration tank, since a separate support portion must be installed in the aeration tank, it may take a considerable time to increase the installation cost of the support portion and manufacture the aeration tank.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an aeration tank equipped with a bamboo contact material that can be easily disposed and a sewage purification apparatus employing the same.

1 is a process chart showing the operation sequence of sewage treatment according to a preferred embodiment of the present invention.

2 is a cross-sectional view schematically showing the inclined plate.

3 shows the principle of the inclined plate.

4 is a perspective view showing a bamboo contact material.

<Explanation of symbols for the main parts of the drawings>

100: screen 120: oil and water separation tank

140: first settling tank 160: flow rate adjusting tank

170: flow rate adjustment pump 180: first inclined plate settling tank

185: inclined plate 190: bamboo contact material

191: opening 192: bamboo

193: bundle of bamboo 194: support

195: Edition 196: Leg

197: base plate 198: top plate

199: frame 200: first aeration tank

220: second aeration tank 240: second sedimentation tank

250: sludge return line 255: sludge return pump

260: third aeration tank 280: second slope plate sedimentation tank

290: upper water conveying line 295: upper water conveying pump

300: disinfection tank 320: discharge tank

330: air supply line 340: air blower

350,360: Diffusion apparatus

Sewage purifying apparatus of the present invention for achieving the above object is a screen for filtering the incoming sewage of impurities; Oil and water separation tank for separating the oil component in the sewage passing through the screen; A first sedimentation tank connected to the oil / water separation tank; A flow rate adjustment tank connected to the first precipitation tank; A flow rate adjustment pump for maintaining a waste water flow rate of the flow rate adjustment tank at a predetermined level; A first inclined plate settling tank connected to the flow adjusting tank through the flow adjusting pump and provided with an inclined plate; A first aeration tank connected to the first inclined plate settling tank; A second aeration tank connected to the first aeration tank; A second sedimentation tank connected to the second aeration tank; A conveying pump for conveying the sludge formed in the second settling tank to the first settling tank; A third aeration tank connected to the second precipitation tank; At least one or more installed in each of the first aeration tank, the second aeration tank, the third aeration tank, a plurality of bamboo and the bottom plate for supporting the bamboo, a top plate having an opening and at least two or more connecting the bottom plate and the top plate A bamboo contact member having a support having a frame and at least two legs connected under the base plate; An air blower for supplying air to the flow rate adjusting tank, the first aeration tank, the second aeration tank, and the third aeration tank; A second inclined plate settling tank connected to the third aeration tank and provided with an inclined plate; A conveying line for conveying the supernatant water of the second inclined plate settling tank to the first inclined plate settling tank; A disinfection tank connected to the second slope plate precipitation tank; It comprises a discharge tank connected to the disinfection tank.

By this configuration, the bamboo can be installed simply by leaving the bamboo contact member disposed in the support in the aeration tank.

Aeration tank of the sewage purification apparatus according to another feature of the present invention is a plurality of bamboo; A support having a bottom plate supporting the bamboo, an upper plate having an opening, and at least two or more frames connecting the bottom plate and the top plate; The bamboo contact material which consists of at least 2 or more legs connected under the said base board is employ | adopted the structure arrange | positioned in an aeration tank.

In the above-described configuration, the bamboo contact member is further provided with a plate formed with a hole between the respective frames, it is possible to generate a stable support of the bamboo and a smooth flow of sewage.

Hereinafter, with reference to the accompanying drawings will be described aeration tank and a sewage purification apparatus employing the bamboo contact material according to a preferred embodiment of the present invention.

1 is a process chart showing the operation sequence of the sewage treatment according to a preferred embodiment of the present invention, Figure 2 is a cross-sectional view schematically showing the inclined plate, Figure 3 is a view showing the principle of the inclined plate, Figure 4 is bamboo It is a perspective view which shows a contact material. As shown in FIG. 1, the sewage purification apparatus of the present embodiment includes a screen 100, an oil / water separation tank 120, a first precipitation tank 140, a flow adjustment tank 160, a first slope plate precipitation tank 180, and a first aeration tank. 200, the second aeration tank 220, the second settling tank 240, the third aeration tank 260, the second inclined plate settling tank 280, the disinfection tank 300, the discharge tank 320 takes a structure sequentially connected. have.

In the above-described configuration, the screen 100 functions to filter out contaminants from the incoming sewage, and it is preferable that a detail screen is used to remove even small contaminants as much as possible.

The oil / water separation tank 120 is a tank that floats and removes a lighter component, such as an oil component, from the wastewater that has passed through the screen 100.

The first sedimentation tank 140 is a tank for sedimenting and separating sediments naturally from the sewage introduced from the oil / water separation tank 120, that is, the gravity.

The flow adjustment tank 160 is a tank for maintaining the flow rate of the filthy water flowing from the first settling tank 160 at a constant water level. When the filthy water is introduced in a constant amount every hour, the flow rate adjusting tank is unnecessary, but the actual filthy water has a different discharge time for each building purpose. Therefore, it is necessary to control flow fluctuations below a certain fluctuation range. In the present embodiment, two or more flow adjustment pumps 170 are installed in the flow adjustment tank 160, which is electrically controlled by a sensor, for example, a float, which detects the level of the sewage. Controlled via a limit switch (not shown). The reason for installing more than two pumps depends on the amount of pumping, but it is usually to take measures to start another pump when one pump fails. The flow rate control pump 170 maintains a constant level of the flow rate adjustment tank 160 while transporting the waste water to the first inclined plate settling tank 180 described later. In addition, in the flow rate adjustment tank 160, an air dispersing device 350 for preventing the settling of the suspended solids SS and the decay of sewage and for stirring is disposed.

The first inclined plate settling tank 180 is a settling tank using an inclined plate that can form fine lumps of matter that are not settled in the flow adjusting tank 160 by tangling with each other to form a lump. An inclined plate 185 as shown in FIG. 2 is installed in the first inclined plate settling tank 180, and the principle thereof is as shown in FIG. In A), the clarification liquid rises. Thus, the inclination board 185 is the structure which cleverly arranges the upward flow and the downward flow.

Therefore, the sewage passes through the first settling tank 160 and the first slope plate settling tank 180, thereby completing the first settling.

The sewage from which the primary sedimentation is completed enters the aeration tank.

When the first aeration tank 200 blows air into the sewage introduced from the first slope plate sedimentation tank 180 (ie, aeration), various aerobic microorganisms using organic matter in the sewage breed and form a cohesive floc. In this way, suspended solids and soluble substances, which are difficult to settle in sewage, are converted into sludge that is easy to settle using the action of microorganisms. In order to form the flock, a microbial contact material is installed, and the bamboo contact material 190 using bamboo as described above is used.

However, as shown in FIG. 4, the bamboo contact member 190 includes a support 194 and a leg 196 installed in the first aeration tank 200 in which the same bamboo 192 and bamboo are inserted in a predetermined length. . Bamboo 192 is a bundle of about 10mm in diameter and dry bamboo bundles of about 100mm and make a bunch of this bamboo bundle (193) to stand on the support (194) tightly inserted. The use of eggplants formed on bamboo nodes can promote floc formation.

The support 194 is a bottom plate 197 supporting the bamboo bundles 193, a top plate 198 having an opening 191 through which the bamboo bundles 193 are inserted, and a frame connecting the bottom plate 197 and the top plate 198. It is composed of (199), it consists of a rectangular shape as a whole. In addition, between the frame 199 is provided with a plate 195 having a hole, it is possible to smooth the flow of sewage as well as preventing the length of the bamboo shortened. As such, it is only necessary to insert the bamboo bundles 193 into the support 194, and the support 194 may be simply placed in the first aeration tank 200, so installation is very easy. The bamboo contact member 190 adopts a configuration installed in four places in the first aeration tank 200 of the present embodiment.

The lower surface of the bottom plate 197 is provided with a leg 196. Thus, the space between the bamboo contact member 190 and the first aeration tank 200 is formed by the height of the leg 196, thereby preventing the blockage of the bamboo contact member 190 and the resulting decay. have. The leg 196 and the frame 199 are preferably manufactured integrally with each other.

The second aeration tank 220 is connected to the first aeration tank 200 and performs the same function through the same configuration as the first aeration tank 200 described above. In addition, the second aeration tank 220 of the present embodiment adopts a configuration in which two bamboo contact members 190 are installed.

The second sedimentation tank 240 is connected to the second aeration tank 220, so that the inverted triangle inclined to the bottom of the sedimentation tank to facilitate the collection of the settling sludge to gather in one place. In addition, it will be apparent that such a configuration may also be implemented in the first settling tank 140. The sludge formed in the second settling tank 240 is conveyed to the first settling tank 140 connected to the conveying pump 255 and the sludge conveying line 250 installed in the second settling tank 240 and processed.

The third aeration tank 260 serves to purify the sewage introduced through the second sedimentation tank 240 as in the first aeration tank 200 and the second aeration tank 220. In the third aeration tank 260, two bamboo contact members 190 are preferably installed.

As described above, the first aeration tank 200, the second aeration tank 220, and the third aeration tank 260 are provided with an air diffuser 360 to blow air into the sewage. The diffuser 360 is preferably installed between the bamboo contact member 190 and the bamboo contact member 190.

The air supply to the diffuser 360 of the aeration tanks 200, 220, and 260 and the diffuser 350 of the flow rate adjustment tank 160 is performed by the operation of the air blower 340 connected through the air supply line 330.

Sewage purified in the third aeration tank 260 flows into the second slope plate precipitation tank 280 in which the inclined plate 185 shown in FIG. 2 is installed, similarly to the first slope plate precipitation tank 180. The second inclined plate settling tank 280 is finally separated into the supernatant and sludge, and the supernatant is transferred to the first inclined plate settling tank 180 through the upper water conveying line 290. The upper water conveyance pump 295, pneumatic, etc. can be used for this supernatant conveyance.

The disinfection tank 300 is an apparatus for disinfecting the supernatant introduced from the second slope plate settling tank 280 by chemicals (eg, chlorine) to remove E. coli in the discharged water.

The sterilized water is discharged to the outside via the discharge tank 320.

In such a flow of sewage, the flow from the flow rate adjusting tank 160 to the first inclined plate settling tank 180 is forcedly transferred by the flow rate adjusting pump 170, and the remaining flow takes the structure of natural transfer by the level of the water level. have.

The aeration tank installed with the bamboo contact material according to the present invention and the sewage purification apparatus using the same are not limited to the above-described embodiments, and may be variously modified within the range allowed by the technical idea of the present invention.

As described above, according to the aeration tank in which the bamboo contact material of the present invention is installed and the sewage purification apparatus employing the same, the following effects are obtained.

First, by a support consisting of a bottom plate, an upper plate formed with an opening, and a frame connecting the same, the bamboo board is cut to a certain length and the bundles bundled therein are inserted into the support. Therefore, the production of the bamboo contact material is easy.

Second, since the bamboo contact material is only placed in the aeration tank, the installation can be very easy to replace, even in the case of the end of life.

Third, a space is formed between the lower surface of the aeration tank and the bottom plate of the support by the legs formed in the bamboo contact material, so that the existing aeration tank can be used as it is without the need for a separate space forming support part in the aeration tank.

Fourth, even if the length of the bamboo is short, by damaging the plate formed with a hole between the frame, not only stably support the bamboo can be generated smoothly the flow of sewage.

Claims (3)

A screen to filter out impurities of incoming sewage; Oil and water separation tank for separating the oil component in the sewage passing through the screen; A first sedimentation tank connected to the oil / water separation tank; A flow rate adjustment tank connected to the first precipitation tank; A flow rate adjustment pump for maintaining a waste water flow rate of the flow rate adjustment tank at a predetermined level; A first inclined plate settling tank connected to the flow adjusting tank through the flow adjusting pump and provided with an inclined plate; A first aeration tank connected to the first inclined plate settling tank; A second aeration tank connected to the first aeration tank; A second sedimentation tank connected to the second aeration tank; A conveying pump for conveying the sludge formed in the second settling tank to the first settling tank; A third aeration tank connected to the second precipitation tank; An air blower for supplying air to the flow rate adjusting tank, the first aeration tank, the second aeration tank, and the third aeration tank; A second inclined plate settling tank connected to the third aeration tank and provided with an inclined plate; A conveying line for conveying the supernatant water of the second inclined plate settling tank to the first inclined plate settling tank; A disinfection tank connected to the second slope plate precipitation tank; Including the discharge tank connected to the disinfection tank, A plurality of bamboos in each of the first aeration tank, the second aeration tank, and the third aeration tank; A support having a bottom plate supporting the bamboo, an upper plate having an opening, and at least two or more frames connecting the bottom plate and the top plate; Sewage purification apparatus installed at least one or more bamboo contact material having at least two or more legs connected to the bottom plate. In the aeration tank of the sewage purification apparatus, The aeration tank has a plurality of bamboo; A support having a bottom plate supporting the bamboo, an upper plate having an opening, and at least two or more frames connecting the bottom plate and the top plate; Aeration tank of the sewage purification apparatus, characterized in that at least one or more bamboo contact material having at least two legs connected to the bottom plate is installed. The aeration tank according to claim 2, wherein the bamboo contact member is further provided with a plate having a hole formed therebetween.