KR20030073554A - Waste water treatment system - Google Patents

Abstract

PURPOSE: Provided is a wastewater treatment system being operated at low cost and installed in a small area, and being capable of reducing BOD, COD, nitrogen and phosphorous at high degree. CONSTITUTION: The system comprises a flow rate and sludge returning rate control unit(20) with a flow rate control zone, a sludge returning rate control zone, and a mixing zone; a bioreactor(40) having microorganism growth device therein by 30-70% of the total volume thereof for removing BOD, COD and nitrogen by adsorption and biochemical reaction, a settling tank(50) with a suspended solid and sludge removal device for primarily removing suspended solids (SS) in the treated water, outflow of the bioreactor(40), and separating settled sludge, and a filter device(80) for filtrating the decant water of the settling tank(50) to produce clean water, and secondly removing the suspended solids.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater treatment apparatus,

The present invention relates to a wastewater treatment apparatus and method for purifying wastewater generated in a place such as a lake, a river, a factory, and the like, and more particularly, The present invention relates to a wastewater treatment apparatus and method capable of obtaining high quality clean water by significantly reducing nitrogen concentration, phosphorus concentration and suspended matter concentration in wastewater as well as COD (chemical oxygen demand).

In general, a wastewater treatment apparatus and method for treating wastewater are variously proposed in various forms.

As a method for microbially treating wastewater, an activated sludge process is generally widely adopted.

The general activated sludge method will be described with reference to Fig. 1. First, wastewater flows into the flow rate adjusting chamber for the first time to average the flow rate.

In addition, the wastewater that has passed through the flow control chamber is agitated and mixed in an aerobic environment by the activated sludge in the breeze chamber.

In the breather chamber, an aeration device is provided to perform stirring of the wastewater while supplying a sufficient amount of air (oxygen).

At this time, pollutants (pollutants) such as organic substances contained in the wastewater are assimilated by the microorganisms in the activated sludge. Separation, oxidation, or the like, or adsorbed on the activated sludge.

In addition, as described above, the treated water microbiologically treated in the breather chamber flows into the precipitation chamber together with the activated sludge, and is separated into the supernatant and the settling sludge.

In addition, the supernatant produced in the precipitation chamber is chemically treated by the chemical agent in the disinfection chamber and then discharged, and the precipitated sludge is treated separately.

In this general activated sludge process, foreign matter or the like is adhered to the valve installed in the middle when the wastewater is supplied from the flow control chamber to the aeration chamber, so that it is not possible to supply an appropriate amount of wastewater to the aeration chamber, .

In addition, in the aeration tank, a large aeration tank must be provided in order to process a BOD volume load of 0.3 - 08 Kg / m ³ .

Also, the amount of sludge generated in the aeration tank was excessive, and the operation cost was excessively high.

In the precipitation chamber, precipitates such as sludge were only precipitated, and suspended substances could not be removed, so that clearer purified water could not be obtained.

That is, according to the conventional activated sludge process, when the wastewater is supplied to the aeration tank from the flow rate control room, clogging is frequently generated and frequent maintenance occurs, and the aeration tank has a large capacity The operation cost is excessive, and the suspended solids can not be filtered by the sedimentation tank, thereby failing to supply cleaner purified water.

On the other hand, the disinfection chamber according to the conventional activated sludge method is treated with a chemical agent or a filter material, and the filter material is used as sand, sand + anthracite, anthracite + sand + garnet It is impossible to recycle the filter media, the waste is generated in a large amount, and the replacement of the filter media is inconvenient.

Various methods have been proposed to improve the conventional activated sludge process.

As one such conventional example, Japanese Patent Laid-Open Publication No. 2000-350995, which was patented on December 19, 2000, is proposed in Japan.

Japanese Patent Application Laid-Open No. 2000-350995 discloses a method in which the wastewater 10 'containing organic matter is subjected to an aerobic treatment in the aeration tank 1', the treated water is separated from the sludge in the settling tank 2 ' , And the separated sludge is subjected to ozonation treatment in the ozonization treatment section (3 ') to be subjected to depuration and reverse biodegradation and returned to the aeration tank (1'). In the waste water treatment method, waste ozone generated by ozone treatment is supplied to the aeration tank .

Such Japanese Patent Application Laid-Open No. 2000-350995 has an effect that water quality can be somewhat improved by ozone.

However, since the growth of microorganisms is limited in the aeration tank as described above, the size of the aeration tank must be enlarged. In addition, the filter material must be used to remove suspended matters, and the filter materials of the above- It is not possible to change the media and it is inconvenient to replace the media.

That is, in the conventional sewage treatment apparatus and method, when the sewage is supplied to the aeration tank in the flow rate control tank, clogging of the piping frequently occurs, and since the microorganisms of the activated sludge are propagated only by aeration, the size of the aeration tank is enlarged, Not only can not remove the components more efficiently, but also fail to filter suspended matters more efficiently, failing to supply cleaner water of higher quality, and operating costs are excessively high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a method and apparatus that can be semi-permanently operated while minimizing the space and the minimum cost, The present invention also provides an apparatus and method for treating wastewater, which can obtain high quality clean water by significantly reducing nitrogen concentration, phosphorus concentration and suspended matter concentration in wastewater.

1 is a flow chart of an activated sludge process in a general wastewater treatment apparatus.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a waste water treatment method.

3 is a flow chart schematically showing the flow of the wastewater treatment apparatus and method applied to the present invention.

4 is a plan view schematically showing the structure of a flow rate and conveying sludge adjusting means applied to the present invention.

5 is a side view schematically showing the structure of the flow rate and conveying sludge adjusting means applied to the present invention.

FIG. 6 is a perspective view showing the microbial propagation means applied to the present invention. FIG.

7 is a photograph showing a state in which microorganisms are propagated in the microorganism propagation means applied to the present invention.

8 is a schematic view showing a structure of a settling tank applied to the present invention.

Fig. 9 is a schematic view showing the structure of filtering means applied to the present invention. Fig.

10 is a flowchart showing the operation sequence of the filtering means applied to the present invention.

Description of the Related Art [0002]

10 ... Flow control tank 11 ... Wastewater

20 ... flow rate and conveying sludge adjusting means 21 ... main body portion

22 ... flow control space 23 ... return sludge adjustment space

40 ... microorganism propagation tank 42 ... microorganism propagation means (MBBR)

50 ... sedimentation tank 60 ... suspension and sedimentation sludge removal means

61 ... power generating member 62, ...,

63 ... settling sludge collecting member 64 ... settling sludge collecting vessel

65 ... Suspended suspension preventer 66 ... Processed milking clearance

67 ... Floating material collecting member 68 ... Floating material conveying pipe

70 ... upper order 80 ... filtering means (MCF)

81 ... filtering member 82 ... main body part

83 ... Lower perforated plate 84 ... Elevating member

85 ... upper plate 86 ... upper inlet

87 ... clean water outlet 88 ... wash water inlet

89 ... Wash water outlet 90 ... Backwash air inlet

To achieve the above object, the present invention provides a wastewater treatment apparatus for purifying wastewater generated in rivers, lakes, factories, and the like; The user can visually check the wastewater stored in the flow control tank and supply it at an even flow rate without clogging. At the same time, the flow control space and the return sludge adjustment space A flow rate and conveying sludge adjusting means having a mixing space; The organic matter contained in the wastewater and the harmful substances such as nitrogen contained in the wastewater supplied from the flow rate regulating means and the transporting sludge adjusting means are physically adsorbed and stored in a minimum space by BOD (biological oxygen demand), COD ), Nitrogen concentration, phosphorus concentration, etc., to maintain the microorganisms in an optimal state to be more efficiently treated. In order to facilitate flow in water, the density is set to 0.92-0.96 g / cm ³ , and a polyethylene A microbial growth reactor (MBBR) made of a material having a volume of 30-70% of the total volume; A sedimentation tank provided with floating and returning sludge removing means for primarily removing suspended solids such as SS contained in the treated water in the microorganism propagation tank and for separating the settled sludge; A floating material is secondly removed and a fiber yarn is thermally fused to convert the suspended material contained in the supernatant produced in the settling tank into a clean water by filtering the filtered suspended material, and a filtering member having a plurality of 15 mm- (MCF).

In order to accomplish the above object, the present invention provides a method for treating wastewater discharged from a river, a lake, a factory or the like. The wastewater and the sludge supplied from the flow rate control tank are smoothly supplied with a predetermined amount of wastewater without clogging while the user visually confirms the flow rate and the sludge sludge by means of the flow rate and sludge sludge adjusting means while the user visually confirm the sludge sludge, And a sludge regeneration step of regulating the flow rate of the sludge; A microbial propagation means (MBBR) distributed in a range of 30 to 70% of the volume of the microorganism propagation tank so as to more efficiently adsorb and decompose harmful substances contained in the wastewater supplied to the microorganism propagation tank in the flow rate and return sludge control step; A microbial growth step for maximizing the growth of microorganisms; A sedimentation tank supplying step of supplying the treated water to the sedimentation tank, wherein the harmful substances contained in the wastewater generated by the microorganism propagated by the microorganism-growing step are more efficiently treated by the microorganisms by physical adsorption and biochemical methods; A float and a settling sludge removing step for primarily removing suspended solids such as SS contained in the treated water supplied to the settling tank in the settling tank supplying step and removing the settled sludge; The upper porous plate of the filtering means (MCF) is moved to the bottom dead center by the lifting member so that the suspended substances contained in the floated water separated in the float and the settling sludge removal step are secondarily removed and converted into clean water, A supernatant inflow step for introducing the supernatant into the main body of the filtering means (MCF); A discharge step of passing the high water introduced in the high water inflow step through the filtering member to filter foreign substances contained in the high water and discharging the converted clean water to the outside of the filtering means (MCF); After discharging the clean water in the discharging step, the upper perforated plate is moved to the top dead center so as to desorb the suspended matters contained in the filtering member, and the washing water and air are introduced into the inside of the main body through the washing water inlet and backwash air inlet, And a desorption step of desorbing suspended matters attached to the filtering member.

According to the apparatus and method for treating wastewater according to the present invention, it is possible to easily manage operation while being semi-permanent, with minimum space and minimum cost, and can be used not only for BOD (biological oxygen demand), COD (chemical oxygen demand) Nitrogen concentration and phosphorus concentration, and the concentration of suspended solids are remarkably lowered to obtain high-quality purified water.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a wastewater treatment apparatus and method according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a flow chart schematically showing the flow of the wastewater treatment apparatus and method applied to the present invention, FIG. 4 is a plan view schematically showing the structure of the flow rate and transport sludge adjusting means applied to the present invention, FIG. 6 is a perspective view showing the microbial propagation means applied to the present invention, and FIG. 7 is a cross-sectional view of the microbial propagation means FIG. 8 is a schematic view showing the structure of the sedimentation tank applied to the present invention, FIG. 9 is a schematic view showing the structure of the filtering means applied to the present invention, and FIG. And Fig. 10 is a flowchart showing an operation sequence of the filtering means applied to the present invention.

3 to 10, the wastewater 11 includes all the contaminated water generated in a lake, a river, a factory, and the like.

The wastewater 11 is temporarily stored in the flow rate adjusting tank 10 and then supplied to the flow rate and conveying sludge adjusting means 20 by pumping means such as a pump or the like.

That is, the wastewater 11 is temporarily stored in the flow rate adjusting tank 10 and then supplied to the flow rate and conveying sludge adjusting means 20 by the pumping means, so that the wastewater 11 in an appropriate amount is not clogged So that the user can visually check the state of smooth supply.

In addition, the flow rate and sludge regulating means 20 are configured to allow the wastewater supplied from the flow rate control tank 10 to be supplied smoothly without clogging, and to allow the user to visually check the flow of wastewater, And a flow control space 22 partitioned by a wastewater supply space part 222 and a wastewater smoothing space part 223 so that an appropriate amount of return sludge can be supplied smoothly, A conveying sludge adjusting space 23 partitioned by a conveying sludge bypass space 231 and a conveying sludge supplying space 232 and a conveying sludge smoothing space 233 so as to confirm the flow, And a mixing space 39 in which the transfer sludge and wastewater supplied from the flow rate regulation space 22 are merged.

That is, the flow rate and conveying sludge adjusting means 20 includes a main body portion 21 having an upper portion opened to partition the flow rate adjusting space 22, the conveying sludge adjusting space 23, and the mixing space 39, A waste water supply pipe 31 located in the flow control space 22 so that wastewater is supplied to the flow control space 22 of the waste water treatment unit 21 and a wastewater supply pipe 31, A waste water bypass pipe (29) connected to the flow control tank (10) and the main body part (21) by bypassing a part of wastewater to be supplied to the reaction tank by the flow control tank (10) A transfer sludge supply pipe 32 positioned in the transfer sludge adjustment space 23 and a transfer sludge supplied through the transfer sludge supply pipe 32 to be supplied to the sludge control space 23 are supplied to the microbial growth reaction tank Bypassing some of the return sludge to be fed It consists of the conveyed ohniba bypass pipe 33 connected to the main body portion (21).

4 and 5, the wastewater bypass space 221 of the flow control space 22 is formed by the wall of the main body 21 and the wastewater first separator 24, The wastewater supply space portion 222 is formed by the wastewater first separator 24 and the second wastewater separator 27. The wastewater smooth space 223 is formed by the second wastewater separator 27 and the wastewater 3 separation membrane 28 and the wastewater water supplied through the wastewater supply pipe 31 is supplied to the wastewater first separation membrane 24 through the wastewater supply pipe 31 so that a sufficient amount of wastewater supplied through the wastewater supply pipe 31 is supplied to the microorganism- And an up-down membrane 25 which is vertically moved by the adjusting member 26 by bypassing the wastewater.

When the wastewater is supplied to the wastewater supply space 222 through the wastewater supply pipe 31, the wastewater supply space 222 is separated from the pressure generated by the drop of the wastewater, Is supplied by the vortex generated by the vortex.

The wastewater supplied to the wastewater supply space 222 of the flow rate adjustment space 22 is supplied to the wastewater supply passage 222 by the height of the up-down and downward movement film 25 raised and lowered by the adjustment member 26, And the waste water is supplied to the wastewater smoothing space portion 223 by bypassing the waste water through the bypass pipe 29.

The wastewater supplied to the wastewater smoothing space portion 223 is smoothed by the wastewater second separation membrane 27 without the surface thereof flowing, Is supplied to the mixing space (39) through a generally V-shaped confirmation passage (281) formed in the wastewater third separation membrane (28).

That is, since the surface of the wastewater supplied to the wastewater smoothing space portion 223 is smooth and supplied to the mixing space 39 through the confirmation passage 281 of the wastewater third separation membrane 28, It is possible to visually confirm the flow of the wastewater and to supply a predetermined amount of wastewater to the microorganism growth tank to be described later.

The flow regulating space 22 is formed in such a manner that a part of the wastewater supplied to the wastewater supply space portion 222 is moved upward and downward by the adjustment of the regulating member 26, The pipe is bypassed through the pass pipe 29, so that the pipe is not clogged as in the conventional case, so that frequent maintenance is not required.

4 and 5, the transporting sludge separation space 231 is formed in the wall of the main body 21 and the transport sludge separation membrane 34 And the conveying sludge supplying space part 232 is formed by the conveying sludge first separating membrane 34 and the conveying sludge second separating film 37. The conveying sludge smoothing space part 233 is formed by the conveying sludge The sludge is supplied to the first sludge separation membrane 34 through the second sludge separation membrane 37 and the third sludge separation membrane 38, And an up-down membrane 35 which is vertically moved by the adjusting member 36 by bypassing the sludge conveyed through the sludge supply pipe 32 so as to be supplied to the sewage sludge supply pipe 32.

When the return sludge supply space portion 232 is supplied with the return sludge through the return sludge supply pipe 32 to the return sludge supply space portion 232, And is supplied with the vortex generated by the pressure generated by the vortex generator.

The conveying sludge supplied to the conveying sludge supply space part 232 of the conveying sludge adjusting space 23 is conveyed by a height of the rising / falling film 35 raised / lowered by the regulating member 36, The sludge is bypassed through the transfer onion bypass pipe 33 so that an appropriate amount of sludge return sludge is supplied to the sludge smoothing space 233.

The conveying sludge smoothing space 233 is provided with a conveying sludge smoothing space 233. The conveying sludge smoothing space 233 is provided with a conveying sludge smoothing space 233, The supplied sludge is supplied to the mixing space 39 through the generally V-shaped confirmation passage 381 formed in the third sludge separation membrane 38.

That is, the conveying sludge supplied to the conveying sludge smoothing space 233 is smoothly conveyed by the conveying sludge separating membrane 37 and is conveyed through the confirmation passage 381 of the conveying sludge third separating membrane 38 It is possible to visually confirm the flow of the sludge by the user easily, and also it is possible to supply a predetermined amount of sludge to the microbial growth tank to be described later.

Reference numeral 40 denotes a microbial growth reaction tank capable of physically adsorbing and biochemically treating harmful substances such as nitrogen and phosphorus contained in the wastewater supplied from the flow rate and return sludge regulating means 20 by aerobic microbes to be.

The aeration device 41 is provided in the microorganism propagation tank 40 to supply oxygen to the wastewater 11 to remove harmful substances such as nitrogen and organic substances contained in the wastewater 11, Respectively.

The microbial growth reaction tank 40 contains a large amount of microbial growth means 42 (MBBR, Moving Bound Biofilm Reactor) so that the harmful components contained in the wastewater 11 can be more efficiently treated by microorganisms.

The microbial growth means 42 (MBBR) is made of polyethylene (polybutylene) material having a density of 0.92 to 0.96 g / cm ³ so that the density of the microbes can be more easily flowed in water And the outer surface is formed in a cylindrical shape having a diameter of 10 mm and a height of 7 mm so that the wastewater 11 can smoothly come into contact with the microorganism. 500 m ² / m ³ , and a plurality of protrusions are protruded on the outer surface so as to intermesh and smoothly flow.

That is, the microbial growth unit 42 (MBBR) is made of polyethylene to facilitate the flow of the microbes in the microbial growth tank 40 so that the microbial growth is maximized even in a narrow space and the harmful substances can be efficiently adsorbed and decomposed And has a density of approximately 0.92-0.96 g / cm ³ and a surface area of approximately 500 m ² / m ^3. A cylindrical body having a diameter of 10 mm and a height of 7 mm is formed so as to facilitate the contact of the wastewater 11, A plurality of protrusions 423 projecting outward from the main body portion 421 so as to more relieve shock and flow when the main body portion 421 hits against each other, And a proliferation part 422 integrally formed in a cross shape inside the body part 421 so that the proliferation of the microorganism is more activated in the body part 421 which flows more efficiently by the engagement.

As shown in FIG. 7, the microbial growth means 42 (MBBR) interlocks with each other to promote flow to maximize the growth of microorganisms, thereby more efficiently treating harmful substances, and the volume of the microorganism- 30% to 70% of the total volume of the aeration tank, which is superior to the conventional aeration tank even when the size thereof is minimized compared with the conventional aeration tank.

The treated water microbiologically treated in the microorganism propagation tank 40 flows into the sedimentation tank 50 together with the activated sludge so that the treated water is treated in the sedimentation tank 50 with supernatant 70, 51 and the sediment removing means 60 are provided.

In order to prevent the microbial growth unit 42 and the MBBR contained in the wastewater of the microbial growth tank 40 from flowing into the settling tank 50 at the outlet of the microbial growth tank 40, , MBBR) having a large number of holes of less than 4 mm in diameter.

The suspended solids and sediment sludge removing means 60 primarily remove suspended solids such as SS contained in the treated water supplied from the sedimentation tank 50 and simultaneously remove the sediment sludge by the flow rate and return sludge adjusting means A power generating member 61 having a rotating shaft 62 in the longitudinal direction of the settling tank 50 and generating rotational power to forcibly bypass the power generating member 61 by the rotational power of the power generating member 61 A settling sludge collecting member 63 provided at the bottom of the rotating shaft 62 so as to collect the settled sludge which has been rotated and settled on the bottom surface of the settling tank 50 is rotated and interlocked with the settling sludge collecting member 63 A float collecting member 67 provided on the upper portion of the rotating shaft 62 to primarily remove floating matters such as SS floating on the surface of the settling tank 50, Float Is discharged to the outside of the settling tank 50 is suspended is installed to pass through the settling tank 50 formed of songgwan 68.

The sedimentation tank 50 is provided with a float separation preventive column 65 at the center of the sedimentation tank 50 so that suspended solids contained in the treated water supplied from the microorganism propagation tank 40 can not spread throughout the sedimentation tank 50 And an end of the treated milk feeding clearance 66 is connected to the inside of the suspended-article separation preventing bottle 65 so that the treated water supplied from the microorganism-growing reaction tank 40 is supplied into the suspended- .

That is, the treated water supplied from the microorganism propagation tank 40 is supplied to the inside of the suspended-matter escape prevention tube 65 through the treated milk-feeding tube 66, and the treated water supplied from the microorganism- The suspended solids contained in the water do not spread outwardly of the suspended-matter escape prevention bottle 65.

The sludge contained in the treated water supplied to the settling tank 50 is settled to the lower surface of the settling tank 50. The settled sludge 51 deposited to the lower portion of the settling tank 50 is supplied to the power generating member The sludge is collected at the center by the settling sludge collecting member 63 rotated by the sludge collecting sludge collecting unit 61 and then supplied to the flow amount and the conveying sludge adjusting unit 20 through the sludge sludge tank 64.

Suspended substances such as SS floated on the surface of the suspended solids separation preventing cylinder 65 of the settling tank 50 are collected by the suspended collector collecting member 67 rotated by the power generating member 61, And the suspended matter is discharged to the outside of the sedimentation tank 50 through the pipeline 68.

The sediment sludge collecting member 63 and the suspended solids collecting member 67 are preferably made of a flexible material such as rubber.

That is, in the sedimentation tank 50, the suspended solids contained in the treated water supplied from the microorganism propagation tank 40 are primarily removed, and the sludge is settled to precipitate the precipitated sludge 51, (20) to produce the supernatant (70).

In addition, reference numeral 80 denotes a filtering means (MCF, Micro Chip Filter) for filtering the suspended substances contained in the supernatant 70, and the fiber yarn is thermally fused to filter the suspended matters contained in the supernatant 70 A plurality of filtering members 81 having a sphericity of 0.9 or more and a diameter of 15 mm to 20 mm and a space for accommodating the filtering member 81 to filter the suspended matters contained in the supernumerary 70, And a filter member 81 fixedly installed on the inner bottom surface of the main body 82 and adapted to filter and convert the cleaned water to be filtered by the filtering member 81, A lower perforated plate 83 in which a plurality of holes having a diameter smaller than that of the filtering member 81 are formed so as not to flow out from the lower perforated plate 83, (84) And an upper perforated plate 85 having a plurality of holes having a diameter smaller than that of the filtering member 81 so that the filtering member 81 does not flow out of the predetermined space of the main body 82, A supernatant inflow port 86 connected to the main body portion 82 provided with the perforated plate 85 and clean water having flowed through the supernatant inflow port 86 and filtered by the filtering member 81, A clean water outlet 87 connected to the lower portion of the main body 82 so as to be discharged to the outside of the main body portion 82 and connected to the main body portion 82 to which the clean water outlet 87 is connected, A washing water inlet 88 into which washing water for washing the filtering member 81 flows into the inside of the main body 82 together with wash water flowing through the washing water inlet 88, The filtering member 81 is inflated to the original state, A backwash air inlet 90 into which air is injected to desorb the suspended matter attached to the pre-filtering member 81, and a backwash air inlet 90 containing airborne matter desorbed by the washing water and air supplied through the backwash air inlet 90 And a washing water outlet 89 connected to the main body 82 so that washing water is discharged to the outside of the main body 82.

That is, the supernatant 70 supplied from the settling tank 50 passes through the filtering unit 80, is converted into clean water whose suspended substances are secondarily removed, and is discharged through the discharge tank.

The suspended substances contained in the supernatant 70 supplied to the filtering means 80 and MCF are filtered by the filtering member 81 thermally adhered to the fiber yarn and converted into clean water. It is possible to lower the operation cost and to remove the suspended solids from the sedimentation tank 50 and filter the secondary filtration by means of the filtering means 80 and MCF, It will be possible to obtain.

Hereinafter, the wastewater treatment process of the wastewater treatment apparatus according to the present invention will be described in detail.

First, the wastewater 11 is temporarily stored in the flow rate adjusting tank 10 and then supplied to the flow rate and conveying sludge adjusting means 20 by pumping means such as a pump or the like.

The wastewater 11 supplied to the flow rate and sludge regulating means 20 is supplied to the flow rate and sludge regulating means 20 so that only a proper amount of wastewater and return sludge is supplied to the microbial growth reactor 40 .

That is, the wastewater of the flow rate and return sludge regulating means 20 is supplied to the wastewater supply space 222 through the wastewater supply pipe 31, and the wastewater supplied to the wastewater supply space 222 flows through the wastewater And is supplied with the vortex generated by the pressure generated by the vortex generator.

The wastewater supplied to the wastewater supply space 222 of the flow rate adjustment space 22 is supplied to the wastewater supply passage 222 by the height of the up-down and downward movement film 25 raised and lowered by the adjustment member 26, And the waste water is supplied to the wastewater smoothing space portion 223 by bypassing the waste water through the bypass pipe 29.

The wastewater supplied to the wastewater smoothing space portion 223 is smoothed by the wastewater second separation membrane 27 without the surface thereof flowing, Is supplied to the mixing space (39) through a generally V-shaped confirmation passage (281) formed in the wastewater third separation membrane (28).

That is, since the surface of the wastewater supplied to the wastewater smoothing space portion 223 is smooth and supplied to the mixing space 39 through the confirmation passage 281 of the wastewater third separation membrane 28, It is possible to visually confirm the flow of the wastewater and to supply a predetermined amount of wastewater to the microorganism breeding tank 40.

Meanwhile, in the flow rate and sludge regulating means 20, the sediment sludge 51 supplied from the sedimentation tank 50 is supplied to the microorganism propagation tank 40 in a fixed amount while the user visually confirms it.

That is, the settling sludge 51 generated in the settling tank 50 is supplied to the transporting sludge supply space portion 232 through the transporting sludge supply pipe 32, and is supplied to the transporting sludge supply space portion 232 The return sludge is supplied while the vortex is generated by the pressure generated by the fall of the return sludge.

The conveying sludge supplied to the conveying sludge supply space part 232 of the conveying sludge adjusting space 23 is conveyed by a height of the rising / falling film 35 raised / lowered by the regulating member 36, The sludge is bypassed through the transfer onion bypass pipe 33 and an appropriate amount of transfer sludge is supplied to the transfer sludge smoothing space 233.

The conveying sludge smoothing space 233 is provided with a conveying sludge smoothing space 233. The conveying sludge smoothing space 233 is provided with a conveying sludge smoothing space 233, The supplied sludge is supplied to the mixing space 39 through the generally V-shaped confirmation passage 381 formed in the third sludge separation membrane 38.

That is, the conveying sludge supplied to the conveying sludge smoothing space 233 is smoothly conveyed by the conveying sludge separating membrane 37 and is conveyed through the confirmation passage 381 of the conveying sludge third separating membrane 38 The user can visually confirm the flow of the conveyed sludge easily and can supply a predetermined amount of the return sludge to the microorganism propagation tank 40. [

The wastewater (11) supplied to the microorganism propagation tank (40) is physically adsorbed by the oxygen supplied by the aerator (41) and is treated by a biochemical method.

Since the microbial growth unit 40 is distributed in the range of 30-70% of the volume of the microbial growth unit 42, the microbial growth unit 40 maximizes microbial growth in the microbial growth cell 40 The harmful substances contained in the wastewater 11 can be more efficiently adsorbed and decomposed and separated.

In addition, since the microbial growth unit (42, MBBR) is distributed in the microbial growth reaction tank 40, the treatment efficiency of the toxic substance can be increased as compared with the conventional aeration tank.

That is, the microbial proliferation means 42 (MBBR) includes a cylindrical body portion 421 having a through hole and a diameter of 10 mm and a height of 7 mm to facilitate the contact of the wastewater 11, A plurality of protrusions 423 projecting outwardly of the main body portion 421 so as to more effectively mitigate shock and flow when the protrusions 423 hit each other, to 421, a more active growth of microorganisms on the inside consists of a multiplication part 422 integrally formed in a cross shape on the main body unit 421, so a material of the polyethylene as a whole 0.92-0.96g / cm ³ density And the surface area thereof is approximately 500 m ² / m ³ , thereby maximizing the proliferation of the microorganisms. Therefore, the harmful substances contained in the wastewater (11) are physically adsorbed and biochemically adsorbed by the microorganisms Inn room Than would be presented by the efficient processing.

Further, since the sludge is not generated in comparison with the conventional aeration tank, the operation management can be performed more efficiently.

In addition, the microbial growth means (42, MBBR) is made of a polyethylene material so that it can be used semi-permanently at low cost.

On the other hand, the treated water efficiently treated with the harmful substances in the microorganism propagation tank 40 is supplied to the settling tank 50.

At this time, the plurality of microbial growth means 42 (MBBR) contained in the microbial growth reaction tank 40 is not supplied to the sedimentation tank 50 by the filtering means provided at the outlet of the microbial growth tank 40 And remains in the microorganism propagation tank 40,

The treated water supplied to the settling tank 50 is supplied to the supernatant 70 in which the suspended solids are removed first and the settled sludge 51 is removed by the suspended solids and sediment sludge removing means 60 provided in the settling tank 50, So that the supernatant 70 is supplied to the filtering means 80 and the settling sludge 51 is supplied to the flow rate and conveying sludge adjusting means 20.

That is, the sludge contained in the treated water supplied to the settling tank 50 is settled by the settling tank 50, and the settled sludge 51 deposited to the lower portion of the settling tank 50 is supplied to the power generating member 61 The sludge is collected at the center by the settling sludge collecting member 63 which is rotated by the sludge collecting sludge collecting unit 63 and then supplied to the flow amount and the conveying sludge adjusting unit 20 through the sludge sludge tank 64.

The floating material such as SS floated on the surface of the float separation preventing cylinder 65 of the sedimentation tank 50 is collected by the float collecting member 67 rotated by the power generating member 61, And the suspended matter is discharged to the outside of the sedimentation tank 50 through the pipeline 68.

Meanwhile, the supernatant 70 having passed through the settling tank 50 contains suspended solids such as SS, and the suspended solids are secondarily removed by the filtering unit 80 (MCF).

That is, the upper perforated plate 85 of the filtering means 80 is moved to the bottom dead center by the elevating member 84 as shown in FIG. 10C, and then the sedimentation tank 50 is moved to the upper water inlet 86 The supernatant is passed through.

The supernatant introduced into the main body 82 through the supernatant inlet 86 passes through the filtering member 81 as shown in FIG. 10C, (81).

That is, the supernatant passing through the filtering member 81 is converted into clean water having suspended substances removed therefrom, and is discharged to the discharge tank through the clean water outlet 87.

10D, the upper perforated plate 85, in which the filtering member 81 of the filtering means 80 (MCF) is fixed at a predetermined pressure, And the washing water and air are introduced into the interior of the main body 82 through the washing water inlet 88 and the backwash air inlet 90 so as to be attached to the filtering member 81 The suspended material is desorbed.

After the floating material attached to the filtering member 81 is desorbed, the washing water containing the floating material is discharged to the outside through the washing water outlet 89.

That is, since the filtering means (80, MCF) according to the present invention filters the suspended substances so that the user can achieve the target water quality, the use value doubles as well as the conventional filtering material can be washed without replacement And reuse is possible, so that the operation management cost is drastically reduced.

Further, since the filtering member (81) contained in the filtering means (80, MCF) is manufactured by thermally fusing with fiber yarn, the manufacturing cost can be greatly reduced and semi-permanently used.

As described above, according to the apparatus and method for treating wastewater and wastewater according to the present invention, it is possible to easily perform operation management while being semi-permanent with minimum space and minimum cost, and can be used not only for BOD (biological oxygen demand), COD (chemical oxygen demand) The nitrogen concentration, the phosphorus concentration and the concentration of the suspended matter in the air are remarkably lowered to obtain a high-quality clean water.

Claims (10)

1. A wastewater treatment apparatus for purifying wastewater generated in a river, a lake, a factory, and the like; The user can visually check the wastewater stored in the flow control tank (10) while supplying the wastewater at an even flow rate without clogging. At the same time, the user can visually check the return sludge, 22, a sludge regulating space (23), and a mixing space (39); The flow rate and the harmful substances such as nitrogen and nitrogen contained in the wastewater supplied from the transfer sludge adjusting means 20 are physically adsorbed and stored in the minimum space by BOD (biological oxygen demand), COD chemical oxygen demand), while maintaining activity of the microorganism so that more efficient processing of a numerical value required for the nitrogen concentration, the concentration, etc. in an optimum state, the density so as to facilitate the flow of the water being in 0.92-0.96g / cm ³ polyethylene ( a microbial growth reactor (40) having a volume of 30 to 70% of the total volume of the microbial growth means (42, MBBR) made of polyetylene; A sedimentation tank 50 in which suspended solids and conveying sludge removing means 60 are installed to primarily remove suspended solids such as SS contained in the treated water treated in the microorganism propagation tank 40 and to separate precipitated sludge ; A floating material is secondly removed and a fiber yarn is thermally fused to convert suspended matter contained in the supernatant produced in the settling tank 50 into filtration water to convert it into clean water so that a plurality of filtration members having a diameter of 15 mm- 81) comprises an internal filtering means (80, MCF). The method of claim 1, further comprising: The flow rate and conveying sludge adjusting means (20) A main body portion 21 in which an upper portion is opened and in which a flow volume adjusting space 22, a transporting sludge adjusting space 23 and a mixing space 39 are defined, A wastewater supply pipe 31 located in the flow control space 22 to supply wastewater to the flow control space 22 of the main body 21, The wastewater is supplied to the microorganism propagation tank 40 in an appropriate amount by bypassing the wastewater from the wastewater supply pipe 31 to the flow rate control tank 10 and the flow rate control tank 10, 21, a wastewater bypass pipe 29 connected to the wastewater bypass pipe 29, A transfer sludge supply pipe 32 located in the transfer sludge adjustment space 23 so that the transfer sludge is supplied to the transfer sludge adjustment space 23, The transfer onion bypass pipe 33 connected to the main body portion 21 bypasses some of the transfer sludge so that the transfer sludge supplied through the transfer sludge supply pipe 32 is supplied to the microorganism propagation tank 40 in an appropriate amount, And a control unit for controlling the wastewater treatment apparatus. The method according to claim 1, The wastewater bypass space 221 of the flow control space 22 is formed by the wall of the main body 21 and the wastewater first separator 24, The wastewater supply space 222 of the flow control space 22 is formed by the wastewater first separation membrane 24 and the wastewater second separation membrane 27, The wastewater smoothing space portion 223 of the flow control space 22 is formed by the wastewater second separation membrane 27 and the wastewater third separation membrane 28, The waste water supplied through the waste water supply pipe 31 is bypassed to the waste water first separation membrane 24 so that the wastewater supplied through the waste water supply pipe 31 is supplied to the microbial growth reaction tank 40 in an appropriate amount, Down film 25 which is moved up and down by the film- The transfer sludge waste space portion 231 of the transfer sludge adjustment space 23 is formed by the wall of the main body portion 21 and the transfer sludge first separation membrane 34, The transport sludge supply space portion 232 of the transport sludge regulating space 23 is formed by the transport sludge first separator 34 and the transport sludge second separator 37, The conveyed sludge smoothing space 233 of the conveying sludge regulating space 23 is formed by the conveying sludge second separating membrane 37 and the conveying sludge separating membrane 38, The transfer sludge supply pipe 32 is connected to the transfer sludge first separation membrane 34 of the transfer sludge regulating space 23 so that a predetermined amount of transfer sludge supplied through the transfer sludge supply pipe 32 is supplied to the microorganism- And an up-down membrane (35) which is vertically moved by the adjusting member (36) by bypassing the conveying sludge supplied through the outlet pipe (34). The method according to claim 1, The microbial growth means (22, MBBR) It is to maximize the growth of microorganisms in a small space so as to effectively adsorb and decompose the harmful substances, and at the same time is composed of a material the density of the polyethylene to be easily flow in the microbial growth reactor 40 generally 0.92-0.96g / cm ³ And the surface area thereof is approximately 500 m ² / m ³ , A cylindrical main body portion 421 having a through hole therein and having a diameter of 10 mm and a height of 7 mm so as to facilitate the circulation of the wastewater 11, A plurality of protrusions 423 projecting outward from the main body 421 so that the flow is more activated when the main body 421 hits each other, And a proliferation part 422 integrally formed in a cross shape inside the main body part 421 so that the proliferation of microorganisms is more activated in the main body part 421 which flows more efficiently by the engagement of the protrusions 423 Wherein the waste water treatment device is a waste water treatment device. The method according to claim 1, The float and sediment removing means (60) A floating power source such as SS or the like contained in the treated water supplied from the settling tank 50 is firstly removed and at the same time a rotating power is generated so as to forcibly bypass the settling sludge by the flow rate and the conveying sludge adjusting means 20 A power generating member 61 having a rotating shaft 62 in the longitudinal direction of the settling tank 50, A settling sludge collecting member 63 provided at the bottom of the rotating shaft 62 so as to collect the settled sludge which is rotated by the rotational power of the power generating member 61 and precipitated on the bottom surface of the settling tank 50, A suspended solids collecting member 67 provided on the upper portion of the rotating shaft 62 to primarily remove suspended solids such as SS floated on the surface of the settling tank 50 in conjunction with the settling sludge collecting member 63, , A suspension is provided through the sedimentation tank 50 so that suspended solids collected by the rotation of the suspended solids collection member 67 are discharged to the outside of the sedimentation tank 50, The sedimentation tank 50 is provided with a float separation preventing bottle 65 at the center of the sedimentation tank 50 so as to prevent the suspended solids contained in the treated water supplied from the microorganism propagation tank 40 from spreading throughout the settling tank 50 And the end of the treated milk feeding clearance 66 is positioned inside the suspended-matter deviation preventing bottle 65 so that the treated water supplied from the microorganism-growing reaction tank 40 is supplied to the inside of the suspended- Wherein the waste water treatment device is a waste water treatment device. The method according to claim 1, The filtering means (80, MCF) A main body 82 enclosing the filtering member 81 to form a space for filtering suspended matters contained in the supernatant and sealingly sealing the cylindrical body, The filtering member 81 is fixed to the inner bottom surface of the main body 82 and allows the filtered and filtered purified water to flow out and to prevent the filtering member 81 from flowing out. A lower perforated plate 83 in which a plurality of small diameter holes are drilled, The filtering member 81 is installed inside the main body 82 facing the lower perforated plate 83 by means of an elevating member 84 so that the filtering member 81 is located inside a predetermined space of the main body 82 An upper perforated plate 85 having a plurality of holes having a diameter smaller than that of the filtering member 81 so as not to be discharged, A supernatant inlet 86 connected to the main body 82 in which the upper perforated plate 85 is installed and a supernatant inlet port 86 through which clean water filtered by the filtering member 81 A clean water outlet 87 connected to the lower portion of the main body 82 to be discharged to the outside of the main body 82, A washing water inlet 88 connected to the main body 82 to which the clean water outlet 87 is connected and through which the washing water for washing the filtering member 81 flows into the inside of the main body 82, Is supplied into the main body portion (82) together with the washing water flowing through the washing water inlet port (88) to inflate the filtering member (81), and at the same time, the floating substance attached to the filtering member (81) A backwash air inlet 90 into which air is injected, The washing water outlet 89 connected to the main body 82 is discharged to the outside of the main body 82 by the air supplied through the backwashing air inlet 90 and the washing water containing the suspended substances desorbed by the washing water, And a filtering means (80, MCF) made up of: 1. A method for treating wastewater discharged from rivers, lakes, factories, etc., comprising: The wastewater and the conveyed sludge supplied from the flow rate control tank 10 are smoothly supplied without clogging while the user visually confirms the flow rate and conveying sludge adjusting means 20 and the conveyed sludge is conveyed smoothly to the naked eye A flow rate and conveying sludge adjusting step for smoothly supplying without clogging while checking; In the range of 30 to 70% of the volume of the microorganism propagation tank 20 so as to more efficiently adsorb and decompose the harmful substances contained in the wastewater supplied to the microorganism propagation tank 40 in the flow rate and return sludge regulating step A microbial growth step for maximizing microbial growth by distributed microbial growth means (22, MBBR); A step of supplying the treated water to the settling tank 50 after the harmful substances contained in the wastewater are processed by the microorganisms by the physical adsorption and the biochemical method by the microorganism propagated by the microorganism- and; A float and a settling sludge removing step for primarily removing suspended solids such as SS contained in the treated water supplied to the settling tank 50 in the settling tank supplying step and removing the settled sludge; The upper perforated plate 85 of the filtering means 80 (MCF) is moved to the bottom dead center by the elevating member 84 so that the suspended substances contained in the supernatant separated in the float and the settling sludge removing step are secondarily removed and converted into clean water. And then introducing the supernatant through the supernatant inlet 86 into the main body 82 of the filtering means 80 (MCF); A discharge step of passing the high water introduced in the high water inflow step through the filtering member 81 to filter the foreign substances contained in the high water and discharging the converted clean water to the outside of the filtering unit 80 (MCF); After discharging the purified water in the discharging step, the upper perforated plate 85 is moved to the upper dead point so as to desorb the suspended matters contained in the filtering member 81, and is discharged through the washing water inlet 88 and the backwash air inlet 90 And a desorption step of introducing wash water and air into the main body part (82) to desorb the suspended matters attached to the filtering member (81). 8. The method of claim 7, In the flow rate and conveying sludge adjusting step, When the wastewater of the flow rate control tank 10 is supplied to the wastewater supply space 222 through the wastewater supply pipe 31, the wastewater supplied to the wastewater supply space 222 flows into the wastewater supply space 222, And is supplied while the vortex is generated, The wastewater supplied to the wastewater supply space 222 of the flow control space 22 is partially or entirely divided by the height of the up and down movement film 25 raised and lowered by the regulating member 26 into the wastewater bypass pipe 29 So that an appropriate amount of wastewater is supplied to the wastewater smoothing space portion 223, The wastewater supplied to the wastewater smoothing space portion 223 is smoothed by the wastewater second separation membrane 27 without the surface thereof flowing, The wastewater supplied to the wastewater smoothing space portion 223 is supplied to the mixing space 39 through the generally V-shaped confirmation passage 281 formed in the wastewater third separation membrane 28 so that the user can control the flow of the wastewater Characterized in that it can be visually confirmed. 8. The method of claim 7, In the flow rate and conveying sludge adjusting step, The settling sludge 51 generated in the settling tank 50 is supplied to the conveyed sludge supply space portion 232 through the conveyed sludge supply pipe 32, The conveying sludge supplied to the conveying sludge supply space portion 232 is supplied while a vortex is generated by the pressure generated by the drop of the conveying sludge, The conveying sludge supplied to the conveying sludge supply space part 232 is conveyed to the conveying sludge supply part 232 by the height of the lifting and lowering film 35 which is raised and lowered by the adjusting member 36, An appropriate amount of conveyed sludge is fed to the conveyed sludge smoothing space 233, The conveyed sludge supplied to the conveyed sludge smoothing space 233 is smoothed by the conveyed sludge second separating film 37 without the surface thereof flowing, The conveying sludge supplied to the conveying sludge smoothing space 233 is supplied to the mixing space 39 through the generally V-shaped confirmation passage 381 formed in the conveying sludge third separation membrane 38, And the flow of the conveyed sludge can be visually confirmed. 8. The method of claim 7, The float and the settling sludge removing step may comprise: The sludge contained in the treated water supplied to the settling tank 50 is settled on the lower surface of the settling tank 50, The settling sludge 51 precipitated in the lower part of the settling tank 50 is concentrated at the center by the settling sludge collecting member 63 rotated by the power generating member 61 and then flowed through the settling sludge tank 64 Is supplied to the sludge regulating means 20, Suspended substances such as SS floated on the surface of the suspended solids separation preventing cylinder 65 of the settling tank 50 are collected by the suspended collector collecting member 67 rotated by the power generating member 61, 68) to the outside of the settling tank (50).