KR20100030083A - Sewage treatment system - Google Patents

Abstract

PURPOSE: A sewage treating system is provided to enhance efficiency for disposing the sewage regardless of a frost penetration depth by keeping a sewage treatment room warm using waste heat caused by all kinds of drive units within a machine room. CONSTITUTION: A sewage treating system comprises: a machine room(100) in which all kinds of drive units for disposing the sewage; a sewage treatment room(200) in which a plurality of contact aeration tanks(220) and settling tank(230) are divided to have a respective place; a heat storage tank(300) which is formed in order to have a space storing the heat in the inside; a heat offer part which storages the heat generated when all kinds of drive units within the machine room are driven in the heat storage tank.

Description

Sewage treatment system

The present invention relates to a sewage treatment system, and more particularly, to provide waste heat of various motors operated for sewage treatment in a machine room to an aeration tank, thereby activating microorganisms by maintaining a constant temperature at all times regardless of the freezing depth. The present invention relates to a new type of sewage treatment system with a structure that can be used to improve and support growth.

In general, a sewage treatment system is a facility for treating domestic sewage and discharge.

The sewage treatment method using the sewage treatment system is largely divided into a method using chemicals and a method using microorganisms.

However, the method using the above chemicals has a problem that the used chemicals cause additional contamination, and recently, biological treatment methods using microorganisms are mainly used.

In addition, as the biological sewage treatment method, an activated sludge process, a catalytic oxidation method, and a rotating disc method are mainly used.

At this time, the activated sludge method has excellent treatment water quality, but requires sophisticated technology for maintaining the concentration of suspended microorganisms, and there is a problem that side effects such as bulking phenomenon occur, which is not suitable for small sewage treatment facilities such as restaurants and inns. On the other hand, the catalytic oxidation method is a method of aeration by putting a microorganism contact material capable of attaching and growing microorganisms in a microbial culture tank, which has the advantage of low sludge generation, simple equipment, and easy maintenance.

However, in the biological sewage treatment method as described above, although the sewage treatment performance greatly depends on the activation of the microorganisms, not only the growth of the microorganisms was difficult due to the seasonal temperature change, but also the sewage treatment performance thereof. There was a problem that the degradation of.

For example, the higher the temperature, the more vigorous the growth is, especially at the temperature of 20 ~ 40 ℃ the growth and activation of the microorganism is most active.

However, when the ambient temperature is lowered, such as in winter, the temperature in the contact aeration chamber must also be low due to the outside air temperature, and thus, the activity of the microorganism is inactive and the growth is difficult, so that the sewage treatment performance is greatly reduced.

In other words, there was a great difficulty in constantly activating microorganisms constantly by temperature changes according to seasons.

Particularly, in the case of nitrifying microorganisms, when the temperature drops below 10 ° C., the growth rate is reduced by half compared to when the temperature is above the temperature. Accordingly, in the winter season when the water temperature is 13 ° C or less, nitrification is difficult to occur, and thus, denitrification is difficult and the nitrogen removal efficiency is reduced overall.

Of course, in order to solve the above-mentioned conventional problems, an automatic temperature maintaining device using a separate heater or the like may be installed and used, but in the case of the automatic temperature maintaining device, installation costs and maintenance such as electricity and mechanical equipment are expensive. Due to its disadvantages, it is not practically widely used.

The present invention has been made to solve the various problems according to the prior art as described above, the object of the present invention is to enable the activation and growth of microorganisms inhabiting sewage treatment facilities regardless of the ambient temperature or season smoothly. The present invention provides a new type of sewage treatment system that can improve sewage treatment efficiency while minimizing separate power consumption for temperature maintenance.

According to the sewage treatment system of the present invention for achieving the above object is a machine room equipped with various drive devices driven for sewage treatment; The internal space includes a sewage treatment chamber formed to have individual spaces in which facilities for sewage treatment such as a plurality of contact aeration tanks and sedimentation tanks are partitioned from each other; A hot air storage tank partitioned from each individual space in the sewage treatment chamber and having a space for storing heat therein; And, it characterized in that it comprises a: a hot air providing unit for providing the heat generated by driving the various drive devices in the machine room to be stored in the hot water storage tank.

Here, the hot water storage tank is composed of a plurality of the plurality of hot water storage tank is provided between each individual space in the sewage treatment chamber, or the outer wall surface of the sewage treatment chamber and the wall surface partitioning each individual space in the sewage treatment chamber. Characterized in that the hot air storage tank.

In addition, the hot air providing unit is connected to communicate the internal space between the machine room and the hot storage tank, the hot air supply pipe for transferring the hot air generated in the machine room to the hot storage tank, and the temperature in the hot storage tank is A blower fan and a fan motor connected to an exhaust pipe connected to discharge the separated air to the outside, an air inlet side of the hot air supply pipe, or an air discharge side of the exhaust pipe and driven so that air in the machine room is forced to flow along the hot air supply pipe and the exhaust pipe. Characterized in that comprises a.

In addition, the hot water storage tank has a temperature sensor for sensing the temperature of the internal space, a hot air discharge pipe for discharging the heat of the hot air storage tank internal space to the outside according to the temperature sensed by the temperature sensor, and opening and closing the pipeline of the hot air discharge pipe The on-off valve is controlled to be further characterized in that it is configured.

In addition, the interior of each individual space of the sewage treatment chamber is characterized in that it further comprises a hot air supply pipe for supplying the warm air in the hot water storage tank to the respective individual spaces to allow aeration to be assisted by the air.

At this time, the hot air supply pipe is formed to be exposed to the outside of the sewage treatment chamber part is characterized in that the sewage in the sewage treatment chamber is prevented from flowing back to the heat storage tank through the hot air supply pipe.

The sewage treatment system according to the present invention as described above provides a great help for the activation and growth of microorganisms by keeping warm the sewage treatment chamber using waste heat according to the driving of various drive devices present in the machine room, regardless of the freezing depth. It has the effect of increasing the efficiency of sewage treatment.

In particular, the sewage treatment system according to the present invention comprises a plurality of hot air storage tank to surround the contact aeration chamber in order to allow the inside of the contact aeration chamber to have a constant temperature in all parts, or to surround the contact aeration chamber or the outer wall surface of the sewage treatment chamber and By forming the partition wall into a hot water storage tank, it is possible to maintain a constant temperature in the whole part of the contact aeration tank.

Hereinafter, a preferred embodiment of the sewage treatment system of the present invention will be described with reference to FIGS. 1 to 3.

1 is shown a sewage treatment system according to a first embodiment of the present invention, as can be seen through the sewage treatment system according to the first embodiment of the present invention is large machine room 100, sewage treatment chamber 200, and the heat storage tank 300 and the heat providing unit 400 are provided.

This will be described in more detail for each component as follows.

First, the machine room 100 is a space provided with various driving devices and operation panels that are driven for sewage treatment, and is mainly installed on the ground.

In this case, the various driving devices provided in the machine room 100 may be a pump device (usually composed of about 4 to 6 pumps) for pumping sewage, and a fan and a fan motor driven for an air diffuser. The inside of the machine room 100 is always at a high temperature due to the heat caused by the driving of the pump device.

Next, the sewage treatment chamber 200 is a series of facilities for discharging sewage pumped by the pumping force according to the driving of the pump device in the machine room 100 and discharged to the sewer.

The interior of the sewage treatment chamber 200 may be performed so that the flow of sewage through the sewage inlet pipe 201 and the treatment of the introduced sewage and discharge of the purified sewage through the discharge pipe 202 may be sequentially performed. Implemented, the flow control tank 210, a plurality of contact aeration tank 220, and facilities for sewage treatment, such as sedimentation tank 230 and discharge tank 240 is formed to form a separate space in a state separated from each other.

Here, the flow rate adjustment tank 210 is a series of spaces configured to control the inflow of sewage, the plurality of contact aeration tanks 220 is a series of spaces to clean the foreign substances by aerobic microorganisms through the ejection of fine air. , The sedimentation tank 230 is a series of spaces for removing the sediment through the process of sedimenting the sewage through the aeration process, the discharge tank 240 to discharge the sewage through the sedimentation tank 230 to sewerage, etc. For a series of spaces.

At this time, the diffuser 221 for ejecting the fine air is connected in the plurality of contact aeration tank 220.

Next, the heat storage tank 300 is configured to have a space for storing heat therein, and is provided to be partitioned from individual spaces formed by the facilities 210, 220, 230, and 240 in the sewage treatment chamber 200.

Particularly, in the first embodiment of the present invention, the hot storage tank 300 is configured in plural, and the plurality of hot storage tanks 300 are formed between individual spaces formed by the respective facilities 210, 220, 230, and 240 in the sewage treatment chamber 200. It is provided between.

That is, the heat storage tank 300 is configured to be positioned between the flow rate adjustment tank 210, the plurality of contact aeration tanks 220, and the sedimentation tank 230, the discharge tank 240, and the like, which constitute the respective facilities. Due to the heat stored in the storage tank 300, the plurality of contact aeration tank 220 and the temperature in the settling tank 230 can be maintained higher than the outdoor temperature, so that the plurality of contact aeration tank 220 and the settling tank 230 The growth of the microorganisms present in) is to be active.

In this case, the hot storage tank 300 is most preferably formed of a high thermal conductivity metal material for smooth heat transfer.

In addition, the first embodiment of the present invention proposes that the heat storage tank 300 configured as described above further includes a temperature sensor (not shown), a hot air discharge pipe 310, and an on / off valve 320.

In this case, the temperature sensor is a series of configurations for sensing the temperature (or the temperature inside the contact aeration tank) of the internal space of the hot storage tank 300, the hot air discharge pipe 310 is to prevent excessive heat in the hot storage tank (300). It is a pipe connected to discharge to the outside, the on-off valve 320 is a valve for opening and closing the pipe of the hot air discharge pipe (310).

The temperature sensor as described above, the hot air discharge pipe 310 and the opening and closing valve 320 is a temperature range of the temperature inside the hot storage tank 300 is set (temperature in the range of 20 ~ 40 ℃, which is the temperature at which the growth of the microorganism is generally active) If the temperature is excessively high, a series of configurations allow exhausting a part of the heat to the outside so that the above-described set temperature range can be maintained.

Next, the hot air providing unit 400 is a series of configurations to deliver the hot air generated by the various driving devices in the machine room 100 to the hot air storage tank 300 to be stored.

The hot air supply unit 400 is configured to include a hot air supply pipe 410 and the exhaust pipe (420).

Here, the hot air supply pipe 410 is connected to communicate the space formed by the machine room 100 and the hot storage tank 300 with each other to transfer the heat generated in the machine room 100 to the hot storage tank (300). The exhaust pipe 420 is a pipe connected to discharge the air in the state in which the temperature in the hot storage tank 300 has fallen to the outside.

At this time, the hot air supply pipe 410 and the exhaust pipe 420 is configured to form a separate pipe, so that the heat supplied through the hot air supply pipe 410 is prevented from being discharged straight through the exhaust pipe 420.

That is, the above-described structure of the hot air supply pipe 410 and the exhaust pipe 420 may naturally provide hot air inside the machine room 100 to a relatively low temperature internal heat storage tank 300 by heat convection. do.

In particular, the portion connected to the hot air storage tank 300 of the hot air supply pipe 410 and the exhaust pipe 420 is preferably to be connected to the bottom of the hot air storage tank (300). This is because the relatively high temperature air flows in the upper portion of the hot water storage tank 300 and the relatively low temperature air is considered in that it flows in the lower portion of the hot water storage tank 300. That is, the hot air supplied into the hot storage tank 300 through the hot air supply pipe 410 flows to the upper space in the hot storage tank 300 by the convection phenomenon, and the air whose temperature is relatively reduced is caused by the convection phenomenon. After the flow to the lower space in the heat storage tank 300 is to be discharged through the exhaust pipe 420.

Of course, by providing a blower fan and a fan motor (not shown) on the hot air inlet side of the hot air supply pipe 410 or the air discharge side of the exhaust pipe 420 (not shown), the heat in the machine room 100 (high temperature air ) May be configured to be forced to flow along the hot air supply pipe 410 and the exhaust pipe (420).

In the following, the operation of the sewage treatment system according to the first embodiment of the present invention configured as described above will be described.

First, the wastewater treatment process is performed in the same manner as the conventional general wastewater treatment process.

That is, the sewage introduced into the flow rate adjustment tank 210 through the sewage inflow pipe 201 is aerated through a plurality of contact aeration tanks 220 sequentially to purify foreign matters, and then the sedimentation tank 230 is continued. It is discharged through the discharge pipe 202 via the discharge tank 240 in a state in which the precipitate is removed through.

Then, during the above-described series of processes, heat is generated according to the driving from the pump device, the blower fan, and the fan motor in the machine room 100 driven for the flow and diffuse of the filthy water. The air is heated, and the heated air is provided to each hot storage tank 300 through the hot air supply pipe 410 constituting the hot air providing unit 400.

Accordingly, the inside of each of the hot air storage tanks is heated, and the heat in the hot air storage tank is transferred to each of the individual spaces (especially, the plurality of contact aeration tanks) in the sewage treatment chamber while being present in the plurality of contact aeration tanks 220. Activate the proliferation of the more smooth sewage treatment is possible.

And, as described above, the hot air provided to each of the hot air storage tanks 300 has a low temperature through heat exchange with each of the contact aeration tanks 220, and the air having such a low temperature is exhausted to the outside through the exhaust pipe 420. .

Meanwhile, the temperature inside the hot storage tank 300 is continuously sensed by a temperature sensor while a series of processes by the wastewater treatment system described above are in progress.

In this process, if the temperature inside the hot storage tank is excessively high compared to the set temperature range (temperature between 20 ~ 40 ℃ the temperature of the growth of microorganisms), the opening and closing valve 320 is operated while the hot air discharge pipe 310 Due to this, a part of the hot air in the hot storage tank 300 is discharged to the outside through the hot air discharge pipe 310, so that the space in the hot storage tank 300 can always maintain the set temperature range. .

This is because the operation control for maintaining the temperature in the hot storage tank 300 may adversely affect the growth of microorganisms when the temperature in the hot storage tank 300 is excessively high.

As a result, by the operation of the sewage treatment system according to the first embodiment of the present invention as described above, each of the contact aeration tank 220 can be maintained at a temperature at which the microorganism can be activated smoothly regardless of the season at all times. The sewage treatment effect can be obtained.

On the other hand, when the wastewater treatment system according to the first embodiment of the present invention described above is considered that the air provided to each contact aeration tank 220 in the wastewater treatment chamber 200 for aeration is a relatively low outdoor air temperature. In the case of a low winter season, the temperature in each contact aeration tank 220 is considerably maintained at a temperature range of about 20 to 40 ° C., which is a temperature at which the growth of microorganisms is vigorous despite the presence of the heat storage tank 300. Hard.

The air temperature in the machine room 100 provided to the hot storage tank 300 may also be lower than that of summer or other seasons due to the influence of outside air, and may be sprayed in a micronized state through the diffuser 221 for aeration. This is due to the low air temperature.

Accordingly, the second embodiment of the present invention proposes a sewage treatment system having a structure that can further compensate the temperature in each contact aeration tank 220 when the outside air temperature is low.

That is, the sewage treatment system according to the second embodiment of the present invention as shown in Figure 2 attached to the warm air in the heat storage tank 300 in the structure of the sewage treatment system according to the first embodiment of the present invention described above It is suggested that the hot air supply pipe 510 is further included to supply the air into each contact aeration tank 220 so that the aeration can be assisted with the air.

At this time, both ends of the hot air supply pipe 510 is connected in communication with each of the hot air storage tank 300 and each contact aeration tank 220, respectively.

In particular, a portion of the hot air providing pipe 510 is formed to be exposed to the outside of the sewage treatment chamber 200 so that the sewage in the sewage treatment chamber 200 is heated through the hot air providing pipe 510. It is preferred to be configured such that backflow is prevented.

Therefore, according to the second embodiment of the present invention, the temperature inside the contact aeration tank 220 can be kept constant regardless of the season, thereby enabling the activation and growth of the microorganisms smoothly.

On the other hand, the hot water storage tank 300 of each configuration of the sewage treatment system according to the present invention is provided between a plurality of individual spaces in the sewage treatment chamber 200 while being provided in plurality as shown in the first and second embodiments described above. It does not have to be provided.

That is, as shown in FIG. 3, which shows the sewage treatment system according to the third embodiment of the present invention, a wall surface partitioning individual spaces constituting the outer wall surface of the sewage treatment chamber 200 and the respective facilities 210, 220, 230, and 240 in the sewage treatment chamber 200. It may be formed as a hot storage tank (300).

As such, the sewage treatment system according to the present invention can be variously changed according to the user's needs or the use environment of the installation structure of the hot storage tank 300.

1 is a schematic diagram illustrating the structure of a sewage treatment system according to a first preferred embodiment of the present invention.

Figure 2 is a schematic diagram showing the structure of the sewage treatment system according to a second embodiment of the present invention

3 is a schematic diagram illustrating the structure of a sewage treatment system according to a third preferred embodiment of the present invention.

Explanation of symbols for main parts of the drawings

100. Machine room 200. Sewage treatment room

201.Sewage inflow pipe 202. Outflow pipe

210. Flow adjustment tank 220. Contact aeration tank

221.Diffusers 230.Sedimentation tanks

240. Discharge tank 300. Hot air storage tank

310. Hot air discharge pipe 320. On-off valve

400. Hot air supply 410. Hot air supply pipe

420. Exhaust Pipe 510. Hot Air Supply Line

Claims (8)

A machine room equipped with various driving devices driven for sewage treatment; The internal space includes a sewage treatment chamber formed to have individual spaces in which facilities for sewage treatment, such as a plurality of contact aeration tanks and sedimentation tanks, are partitioned from each other; Hot air storage tank is partitioned from the individual space constituting each facility in the sewage treatment chamber and having a space for storing heat therein; And, And a hot air providing unit for providing the hot air generated as the various driving devices in the machine room to be stored in the hot water storage tank. The method of claim 1, The hot air storage tank is composed of a plurality, The plurality of hot water storage tank is provided between each individual space in the sewage treatment chamber, respectively. The method of claim 1, And a wall surface partitioning an outer wall surface of the sewage treatment chamber and an individual space formed by each facility in the sewage treatment chamber by the hot water storage tank. The method according to any one of claims 1 to 3, The hot air providing unit A hot air supply pipe connected to communicate with the inside of the machine room and the space formed by the hot storage tank, and transferring hot air generated in the machine room to the hot storage tank; And an exhaust pipe connected to discharge air having a temperature dropped in the hot storage tank to the outside. The method of claim 4, wherein On the hot air inlet side of the hot air supply pipe or on the air exhaust side of the exhaust pipe And a blower fan and a fan motor driven by the air in the machine room to be forced to flow along the hot air supply pipe and the exhaust pipe. The method according to any one of claims 1 to 3, The hot water storage tank A temperature sensor that senses the temperature of the internal space, A hot air discharge pipe discharging heat of the internal space of the hot water storage tank to the outside according to the temperature sensed by the temperature sensor; Sewage treatment system characterized in that it further comprises an on-off valve controlled to open and close the conduit of the hot air discharge pipe. The method of claim 1, wherein The sewage treatment facility is further provided in each individual space of the sewage treatment chamber further comprising a hot air supply pipe for supplying warm air in the hot water storage tank to individual spaces formed by the respective facilities to assist the aeration with the air. Processing system. The method of claim 7, wherein The hot air supply pipe And a portion of the sewage treatment chamber to be exposed to the outside of the sewage treatment chamber so that the sewage in the sewage treatment chamber is prevented from flowing back to the heat storage tank through the hot air supply pipe.

Images