KR200279425Y1 - Waste water treatment system - Google Patents

Abstract

The present invention relates to a wastewater treatment apparatus for purifying wastewater generated in a place such as a lake, a river, a plant, etc., in particular, a wastewater treatment apparatus for purifying wastewater generated in a river, a lake, a plant, etc .; The flow control space and the return sludge control space are provided so that the user can visually check the waste water stored in the flow control tank at an equal flow rate without clogging, while simultaneously supplying the return sludge to the user visually without clogging. And a flow rate and conveying sludge adjusting means having a mixing space; BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand) in a minimum space by physical adsorption and biochemical methods are contained in the organic matter and nitrogen contained in the wastewater supplied from the flow rate and the return sludge control means ), Nitrogen concentration, phosphorus concentration, etc. to keep the microorganisms in optimum condition to be processed more efficiently, and the density is 0.92-0.96g / cm ³ to facilitate the flow in water and the polyethylene (polyetylene) Microbial growth reaction tank made of a material (MBBR) in the range of 30-70% of the total volume; A settling tank in which floating material and return sludge removal means are installed to remove the suspended sludge, such as SS, contained in the treated water treated in the microbial growth reaction tank and to separate the settling sludge; Filtering the suspended substances contained in the supernatant water produced in the settling tank to remove the suspended substances in a second, and heat-sealed the fiber yarn to filter the suspended substances contained in the supernatant water, the filtering of the plurality of filtering members consisting of 15mm-20mm in diameter The present invention relates to a wastewater treatment device composed of means (MCF), which can be semi-permanent and easy to manage with minimal space and minimum cost, and can provide nitrogen in wastewater as well as BOD (biological oxygen demand) and COD (chemical oxygen demand). High quality clean water can be obtained by drastically lowering the concentration, phosphorus concentration and suspended solids concentration.

Description

Wastewater Treatment System {WASTE WATER TREATMENT SYSTEM}

The present invention relates to a wastewater treatment apparatus for purifying wastewater generated in a place such as a lake, a river, a plant, etc., and in particular, it can be semi-permanent and easy to manage operation with minimum space and minimum cost. The present invention relates to a wastewater treatment apparatus that can obtain high quality clean water by significantly lowering the concentration of nitrogen, phosphorus and suspended solids in sewage as well as COD (chemical oxygen demand).

In general, various wastewater treatment apparatuses for treating wastewater have been proposed in various forms.

Moreover, as a method of microbiologically treating wastewater, the activated sludge method is generally widely adopted.

Referring to Fig. 1, a general activated sludge method will be described. First, the sewage is first introduced into the flow regulating chamber to average the flow rate.

In addition, the sewage that has passed through the flow control chamber is stirred and mixed under an aerobic environment by activated sludge in the aeration chamber.

In addition, in the aeration chamber, the aeration device is provided to perform agitation of the sewage while supplying a sufficient amount of air (oxygen).

At this time, contaminants such as organic matter contained in sewage are assimilated by microorganisms in activated sludge. It is treated by separation, oxidation, or adsorption into activated sludge.

In addition, the microbiologically treated water in the aeration chamber as described above is introduced into the settling chamber together with the activated sludge to be separated into the supernatant and the settling sludge.

In addition, the supernatant generated in the precipitation chamber is discharged after chemical treatment by chemical in the disinfection chamber, the sedimentation sludge is treated separately.

The general activated sludge method is a problem in that when the wastewater is supplied from the flow regulating chamber to the aeration chamber, foreign matter is attached to the valve installed in the middle, so that the proper amount of the sewage cannot be supplied to the aeration chamber, and the frequently blocked portion must be repaired. There was this.

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

In addition, due to the excessive amount of sludge generated in the aeration tank, excessive operating costs were required.

In addition, in the sedimentation chamber, only sediment, such as sludge, was precipitated, and the suspended solids could not be removed.

That is, according to the conventional sewage treatment apparatus and method according to the conventional general activated sludge method, when the sewage is supplied to the aeration tank from the flow control chamber, clogging occurs frequently and maintenance is frequently generated, and the aeration tank has a large capacity. The operation cost is excessively high, and there is a problem in that it is not possible to filter the suspended matter in the sedimentation tank to supply cleaner clean water.

On the other hand, in the conventional disinfection room according to the general activated sludge process is to process the suspended solids by chemical treatment or by using the media, the media is used as sand, sand + anthracite, anthracite + sand + garnet, etc. If the same media is used, there is a problem that it is impossible to recycle the media, a large amount of waste is generated and the replacement of the media is inconvenient.

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

As one such conventional example, Japanese Patent Application Laid-Open No. 2000-350995 has been proposed.

Japanese Patent Laid-Open No. 2000-350995 discloses aerobic treatment of wastewater 10 'containing organic matter in an aeration tank 1', after which the treated water is separated from sludge in a settling tank 2 '. In the wastewater treatment method in which the separated sludge is subjected to ozone treatment by the ozone treatment unit 3 'to be reduced in size and reverse biodegraded to return to the aeration tank 1', waste ozone generated by ozone treatment is aerated. It is characterized by the supply.

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

However, as described above, the growth of microorganisms in the aeration tank is limited, and the size of the aeration tank should be enlarged, as well as the use of media to remove suspended solids. There were a number of problems, including the impossibility and the inconvenience of replacing media.

That is, in the conventional sewage treatment apparatus, when the sewage is supplied from the flow control tank to the aeration tank, clogging of the pipe is frequently generated, and the size of the aeration tank is increased due to the aeration of the microorganisms of the activated sludge only by the aeration. Of course, there are various problems such as not being able to remove more efficiently, not filtering the suspended matter more efficiently, supplying higher quality clean water, and excessive operating costs.

The present invention has been made in view of the above-mentioned problems, and the object of the present invention is to be semi-permanent and easy to manage operation with minimum space and minimum cost, and BOD (biological oxygen demand), COD (chemical oxygen demand) In addition, the present invention provides a wastewater treatment apparatus which can obtain high quality clean water by drastically lowering the concentration of nitrogen, phosphorus and suspended solids in wastewater.

1 is a flow chart by an active sludge method in a general sewage treatment apparatus.

Fig. 2 is a block diagram schematically showing the configuration by the sewage treatment method according to the conventional Japanese Patent Laid-Open No. 2000-350995.

Figure 3 is a flow chart schematically showing the flow by the wastewater treatment apparatus applied to the present invention.

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

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

Figure 6 is a perspective view showing a microbial growth means applied to the present invention.

Figure 7 is a picture taken a state in which microorganisms propagation in the microbial growth means applied to the present invention.

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

9 is a structural diagram schematically showing the structure of the filtering means applied to the present invention.

Figure 10 is a flow chart showing the operation sequence of the filtering means applied to the present invention.

* Description of the symbols for the main parts of the drawings *

10.Flow control tank 11 ... Waste water

20 Flow rate and return sludge adjusting means 21 Main unit

22.Flow control space 23 ... Return sludge control space

40 ... Microbial growth reactor 42 ... Microbial growth means (MBBR)

50 Sedimentation tank 60 Removal of suspended solids and sediment sludge

61 Power generating member 62, rotating shaft

63.Sedimentation sludge collection member 64 ... Sedimentation sludge transport pipe

65. Float prevention box 66

67.Float collection member 68 ... Float transfer pipe

70 ... constant water 80 ... filtering means (MCF)

81 Filter element 82 Main body

83 Lower plate 84 Lifting member

85.Top Perforated Plate 86 ... Top Water Inlet

87.Clean water inlet 88.Clean water inlet

89 ... wash water outlet 90 ... backwash air inlet

In order to achieve the above object, the wastewater treatment apparatus of the present invention includes a wastewater treatment apparatus for purifying wastewater generated in a river, a lake, a factory, etc .; The flow control space and the return sludge control space are provided so that the user can visually check the waste water stored in the flow control tank at an equal flow rate without clogging, while simultaneously supplying the return sludge to the user visually without clogging. And a flow rate and conveying sludge adjusting means having a mixing space; BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand) in a minimum space by physical adsorption and biochemical methods are contained in the organic matter and nitrogen contained in the wastewater supplied from the flow rate and the return sludge control means ), Nitrogen concentration, phosphorus concentration, etc. to keep the microorganisms in optimum condition to be processed more efficiently, and the density is 0.92-0.96g / cm ³ to facilitate the flow in water and the polyethylene (polyetylene) Microbial growth reaction tank made of a material (MBBR) in the range of 30-70% of the total volume; A settling tank in which floating material and return sludge removal means are installed to remove the suspended sludge, such as SS, contained in the treated water treated in the microbial growth reaction tank and to separate the settling sludge; Filtering the suspended substances contained in the supernatant water produced in the settling tank to remove the suspended substances in a second, and heat-sealed the fiber yarn to filter the suspended substances contained in the supernatant water, the filtering of the plurality of filtering members consisting of 15mm-20mm in diameter It is characterized by consisting of means (MCF).

According to the wastewater treatment apparatus according to the present invention, it is possible to facilitate semi-permanent operation and management with minimum space and minimum cost, and the concentration of nitrogen in wastewater as well as BOD (biological oxygen demand) and COD (chemical oxygen demand). And the phosphorus concentration and the concentration of suspended solids can be drastically reduced to obtain high quality clean water.

Hereinafter, with reference to the accompanying drawings an embodiment of a wastewater treatment apparatus applied to the present invention will be described in detail.

Figure 3 is a flow chart schematically showing the flow by the wastewater treatment apparatus applied to the present invention, Figure 4 is a plan view schematically showing the structure of the flow rate and conveying sludge adjusting means applied to the present invention, Figure 5 It is a side view schematically showing the structure of the flow rate and conveying sludge control means applied to the subject innovation, Figure 6 is a perspective view showing a microbial growth means applied to the present invention, Figure 7 is a microorganism in the microbial growth means applied to the present invention 8 is a photograph showing a state in which the growth is performed, and FIG. 8 is a structural diagram schematically showing a structure of a sedimentation tank applied to the present invention, and FIG. 9 is a structural diagram schematically showing a structure of a filtering means applied to the present invention. 10 is a flowchart showing the operation sequence of the filtering means applied to the present invention.

3 to 10, the waste water 11 includes all of the contaminated water generated from lakes, rivers, factories and the like.

In addition, the waste water 11 is temporarily stored in the flow regulating tank 10 and then supplied to the flow rate and return sludge adjusting means 20 by pumping means such as a pump.

That is, the waste water 11 is temporarily stored in the flow regulating tank 10 and then supplied to the flow rate and the return sludge adjusting means 20 by a pumping means, so that the appropriate amount of the waste water 11 is not blocked in the pipe or the like. At the same time, the user can check the state of supplying smoothly.

In addition, the flow rate and return sludge adjusting means 20, the waste water bypass space so that the waste water supplied from the flow control tank 10 can be smoothly supplied without clogging, and the user can check the flow of waste water with the naked eye. The flow control space 22 partitioned by the part 221, the wastewater supply space 222, and the wastewater smoothing space 223, and the appropriate amount of the returning sludge are smoothly supplied, and the user visually returns the sludge. The conveying sludge adjusting space 23 divided into the conveying sludge bypass space part 231, the conveying sludge supply space part 232, and the conveying sludge smoothing space part 233 so as to confirm the flow, and the conveying sludge adjusting space 23. ) And a mixing space 39 into which the return sludge and the wastewater supplied from the flow rate control space 22 are joined.

That is, the flow rate and conveying sludge adjusting means 20, the upper portion is opened, the main body portion 21 is divided into the flow regulating space 22, the conveying sludge adjusting space 23 and the mixing space 39, and the main body Waste water supply pipe 31 located in the flow control space 22 and the waste water supplied from the waste water supply pipe 31 so that the waste water is supplied to the flow control space 22 of the unit 21, the microbial growth to be described later in an appropriate amount. The waste water bypass pipe 29 connected to the flow regulating tank 10 and the main body portion 21 by bypassing a part of the waste water to the flow regulating tank 10 so as to be supplied to the reaction tank, and the return sludge is conveyed. In order to be supplied to the sludge control space 23, the transport sludge supply pipe 32 located in the transport sludge control space 23, and the return sludge supplied through the transport sludge supply pipe 32, are described below in an appropriate amount. Bypass some return sludge to supply It consists of the conveyed ohniba bypass pipe 33 connected to the main body portion (21).

In addition, the wastewater bypass space portion 221 of the flow control space 22 is formed by the wall of the main body portion 21 and the first wastewater separation membrane 24, as shown in Figure 4 and 5, The wastewater supply space 222 is formed by the first wastewater separation membrane 24 and the second wastewater separation membrane 27, and the wastewater smoothing space portion 223 includes the second wastewater separation membrane 27 and the wastewater. It is formed by the three separation membrane 28, the waste water is supplied through the waste water supply pipe 31 so that the waste water supplied through the waste water supply pipe 31 to the first separation membrane 24 is supplied to the microbial growth reaction tank to be described later in an appropriate amount. A lifting film 25 is installed which bypasses the waste water and moves up and down by the adjustment member 26.

When the wastewater is supplied to the wastewater supply space 222 through the wastewater supply pipe 31, the flow rate adjusting space 22 is the wastewater supply space 222 at a pressure generated by the drop of the wastewater. By the vortex is generated and supplied.

In addition, the wastewater supplied to the wastewater supply space 222 of the flow rate control space 22 is a part of the wastewater by the height of the lifting film 25 which is lifted and lowered by the adjusting member 26. By-passing through the bypass pipe 29, an appropriate amount of waste water is supplied to the waste water smoothing space portion 223.

In addition, the wastewater supplied to the wastewater smoothing space portion 223 is smoothed without the surface flowing by the second wastewater separation membrane 27, and the wastewater supplied to the wastewater smoothing space portion 223 is The V-shaped confirmation passage 281 formed in the third wastewater separation membrane 28 is supplied to the mixing space 39.

That is, the wastewater supplied to the wastewater smoothing space portion 223 has a smooth surface and is supplied to the mixing space 39 through the confirmation passage 281 of the third wastewater separation membrane 28, thereby allowing the user to easily. Not only can the flow of waste water be visually checked, but also a certain amount of waste water can be supplied to the microbial growth reaction tank described below.

In addition, the flow rate control space 22 is a part of the waste water supplied to the waste water supply space 222 by the lifting film 25 is raised and lowered by the adjustment of the adjusting member 26 is the waste water by Bypassing through the pass pipe 29 does not occur as the pipe clogging as in the prior art, so frequent maintenance is not required.

Meanwhile, as illustrated in FIGS. 4 and 5, the conveying sludge adjusting space 23 includes the conveying sludge waste space part 231 on the wall of the main body part 21 and the conveying sludge first separation membrane 34. And the conveying sludge supply space 232 is formed by the conveying sludge first separator 34 and the conveying sludge second separator 37, and the conveying sludge smooth space part 233 is the conveying sludge. The microbial growth reaction tank formed by the second separator 37 and the third carrier sludge separation membrane 38, wherein the transfer sludge supplied through the transfer sludge supply pipe 32 is appropriately described in the first sludge separation membrane 34. The elevating film 35 is installed to bypass the conveying sludge supplied through the conveying sludge supply pipe 32 so as to be supplied to and to be moved by the adjusting member 36.

The conveying sludge adjusting space 23 is first supplied to the conveying sludge supply space 232 through the conveying sludge supply pipe 32, and the conveying sludge supply space 232 is dropped from the conveying sludge. Vortex is generated by the pressure generated by the supply.

In addition, the conveying sludge supplied to the conveying sludge supply space part 232 of the conveying sludge adjusting space 23 is partially conveyed by the height of the lifting film 35 which is lowered by the adjusting member 36. As the sludge is bypassed through the conveying sludge bypass pipe 33, an appropriate amount of sludge is supplied to the conveying sludge smooth space part 233.

In addition, the conveying sludge supplied to the conveying sludge smooth space part 233 is smoothed without the surface flowing by the conveying sludge second separation membrane 37, and is supplied to the conveying sludge smooth space part 233. The conveyed sludge is supplied to the mixing space 39 through a substantially 'V' shaped confirmation passage 381 formed in the third sludge separation membrane 38.

That is, the conveying sludge supplied to the conveying sludge smooth space part 233 is smoothed by the conveying sludge separation membrane 37 and mixed through the confirmation passage 381 of the third sludge separating membrane 38. As it is supplied to the space 39, the user can easily check the flow of the returned sludge as well as supply a predetermined amount of the returned sludge to the microbial growth reaction tank described later.

On the other hand, reference numeral 40 denotes a microbial growth reaction tank capable of treating the harmful substances such as nitrogen and phosphorus contained in the wastewater supplied from the flow rate and return sludge adjusting means 20 by physical adsorption and biochemical methods by aerobic microorganisms. to be.

In addition, the microbial growth reaction tank 40 is provided with an aeration device 41 or a stirrer to supply oxygen into the wastewater 11 to remove harmful substances such as organic substances and nitrogen contained in the wastewater 11. It is provided.

In addition, the microbial growth reaction tank 40 includes a large amount of microbial growth means (42, MBBR, Moving Bed Biofilm Reactor) to more efficiently handle the harmful components contained in the waste water 11 by the microorganisms.

In addition, the microbial growth means (42, MBBR) is a material of polyethylene (polyetylene) is 0.92-0.96g / cm ³ so that the density is more easily flowed in water so that the high concentration of microorganisms are kept active in an optimal state The exterior is made of a cylindrical shape of 10mm in diameter and 7mm in height so that the waste water 11 can be smoothly contacted, and has a cross-shaped shape so that microorganisms can efficiently multiply in a high concentration and its surface area is generally It consists of 500m ² / m ³ , the outer surface has a plurality of protrusions to be engaged with each other to flow smoothly.

That is, the microbial growth means 42, MBBR is made of a polyethylene material to facilitate the flow in the microbial growth reaction tank 40 so that the growth of microorganisms in a narrow space can be maximized to efficiently adsorb and decompose harmful substances. The density is generally 0.92-0.96g / cm ³ and its surface area is approximately 500m ² / m ³ , and the inside of the cylindrical body is generally 10 mm in diameter and 7 mm in height to allow the inside of the waste water to contact smoothly. When the part 421 and the main body 421 collide with each other, a plurality of protrusions 423 protruding from the outside of the main body 421 and the protrusions 423 so that impact mitigation and flow are more activated. It consists of a multiplying portion 422 integrally formed in a cross shape inside the body portion 421 so that the growth of microorganisms in the body portion 421 that flows more efficiently by engaging.

In addition, the microbial growth means (42, MBBR) is engaged with each other as shown in Figure 7 to promote the flow to maximize the growth of microorganisms to more efficiently handle harmful substances, the volume of the microbial growth reaction tank 40 It can be filled in the range of 30-70% to minimize the size compared to the conventional aeration tank can create a superior efficiency compared to the conventional aeration tank.

In addition, the microbiologically treated water in the microbial growth reaction tank 40 is introduced into the settling tank 50 together with the activated sludge, and in the settling tank 50, the suspended solids and the settling sludge so that the treated water is treated with the supernatant water (70). 51 is provided with a float and deposit removal means (60) for removing.

On the other hand, the microbial growth means 42 at the outlet of the microbial growth reaction tank 40 so that the microbial growth means 42, MBBR contained in the waste water of the microbial growth reaction tank 40 does not flow into the settling tank 50. , MBBR) is provided with a network filtering means having a plurality of holes of less than 4mm in general.

In addition, the suspended matter and sedimentation sludge removing means (60), while removing the suspended substances such as SS contained in the treated water supplied from the sedimentation tank 50, and at the same time to the settling sludge to the flow and return sludge adjusting means ( 20) generates a rotational force forcibly bypassed by the power generating member 61 and the rotating shaft 62 is provided in the longitudinal direction of the settling tank 50, by the rotational power of the power generating member 61 Rotated in conjunction with the settling sludge collecting member 63 and the settled sludge collecting member 63 installed at the bottom of the rotating shaft 62 to collect the sludge deposited on the bottom surface of the settling tank 50 to the center. Collected by the rotation of the floating water collecting member 67 and the floating water collecting member 67 installed on the upper portion of the rotating shaft 62 to remove floating materials such as SS floating on the surface of the settling tank 50 first. Float It consists of a float transport pipe 68 installed through the settling tank 50 so that quality is discharged to the outside of the settling tank 50.

In addition, the sedimentation tank (50) in the center of the sedimentation tank (50) to prevent the suspended solids contained in the treated water supplied from the microbial growth reaction tank 40 as a whole of the sedimentation tank (50) in the floating material prevention prevention tank (65) Is installed, and the end of the treatment water supply pipe 66 is provided inside the float escape prevention container 65 so that the treated water supplied from the microbial growth reaction tank 40 is supplied into the float escape prevention container 65. It is located.

That is, the treated water supplied from the microbial growth reaction tank 40 is supplied to the inside of the floating material escape prevention container 65 through the treated water supply pipe 66, wherein the treatment supplied from the microbial growth reaction tank 50 Suspended matter contained in the water does not spread to the outside of the float escape prevention container (65).

In addition, 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 settling sludge settled to the lower portion of the settling tank 50 is the power generating member ( Centralized by the sedimentation sludge collection member 63 rotated by 61, it is supplied to the flow rate and conveying sludge adjusting means 20 through the sedimentation sludge conveying pipe 64.

On the other hand, the suspended solids such as SS floating on the surface of the float separation prevention container 65 of the settling tank 50 is collected by the float collecting member 67 rotated by the power generating member 61 and then It is discharged to the outside of the settling tank 50 through the float transfer pipe (68).

In addition, the sedimentation sludge collection member 63 and the floating material collection member 67 is preferably made of a flexible material such as rubber.

That is, in the settling tank 50, the suspended solids contained in the treated water supplied from the microbial growth reaction tank 40 are primarily removed, and the sludge is precipitated by precipitating the sludge. By supplying the means 20, the supernatant 70 is generated.

On the other hand, reference numeral 80 is a filtering means (MCF, Micro Chip Filter) for filtering the suspended solids contained in the supernatant 70, heat-sealed the fiber yarn to filter the suspended solids contained in the supernatant 70 By forming a space to filter the suspended solids contained in the supernatant (70) by accommodating a plurality of filtering members 81 and the filtering member 81 consisting of a spherical ratio of 0.9 or more and the diameter of 15mm-20mm Cylindrically sealed body portion 82, and fixed to the inner bottom of the main body portion 82, and filtered by the filtering member 81 to let the clean water converted and the filtering member 81 at the same time Lifting member in the lower perforated plate 83 having a plurality of holes having a diameter smaller than that of the filtering member 81 and the main body portion 82 opposite to the lower perforated plate 83 so that the water is not leaked out. Elevated installation by 84 The 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 a predetermined space of the main body 82, and the upper portion The supernatant inlet 86 connected to the main body 82 provided with the porous plate 85 and the purified water flowing through the supernatant inlet 86 and filtered by the filtering member 81 are purified water. The main body portion (8) is connected to the main body portion 82 to which the clean water outlet 87 is connected to the lower part of the main body portion 82 so as to be discharged to the outside of the main portion 82, and the clean water outlet 87 is connected. 82 is supplied to the inside of the main body 82 together with the washing water inlet 88 through which the washing water for washing the filtering member 81 flows into the inside of the cleaning member 81, and the washing water flowing through the washing water inlet 88. While inflating the filtering member 81 to its original state Air inlet 90 through which air is injected to desorb the suspended solids attached to the filtering member 81, and air suspended through the reverse air inlet 90 and suspended matter desorbed by the washing water. The washing water outlet 89 is connected to the main body 82 so that the washing water is discharged to the outside of the main body 82.

That is, the supernatant water 70 supplied from the settling tank 50 passes through the filtering means 80 and is converted into clean water in which the suspended solids are secondarily removed and discharged through the discharge tank.

On the other hand, the suspended solids contained in the supernatant 70 supplied to the filtering means 80, MCF is filtered by the filtering member 81 heat-sealed with fiber yarn, and converted into clean water, As the filter medium is not required, the operating cost can be reduced, and at the same time, the suspended solids are firstly removed from the settling tank 50 and secondly filtered by the filtering means 80 and MCF to purify the pure water. You will get it.

Next, the operation and effect of the wastewater treatment apparatus according to the present invention configured as described above will be described in detail.

First, the waste water 11 is temporarily stored in the flow regulating tank 10 and then supplied to the flow rate and return sludge adjusting means 20 by pumping means such as a pump.

In addition, the wastewater 11 supplied to the flow rate and return sludge adjusting means 20 is supplied to the flow rate and return sludge adjusting means 20 so that only an appropriate amount of wastewater and return sludge is supplied to the microbial growth reaction tank 40. Will be.

That is, the wastewater of the flow rate and return sludge adjusting 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 is a drop of wastewater. Vortex is generated by the pressure generated by the supply.

In addition, the wastewater supplied to the wastewater supply space 222 of the flow rate control space 22 is a part of the wastewater by the height of the lifting film 25 which is lifted and lowered by the adjusting member 26. By-passing through the bypass pipe 29, an appropriate amount of waste water is supplied to the waste water smoothing space portion 223.

In addition, the wastewater supplied to the wastewater smoothing space portion 223 is smoothed without the surface flowing by the second wastewater separation membrane 27, and the wastewater supplied to the wastewater smoothing space portion 223 is The V-shaped confirmation passage 281 formed in the third wastewater separation membrane 28 is supplied to the mixing space 39.

That is, the wastewater supplied to the wastewater smoothing space portion 223 has a smooth surface and is supplied to the mixing space 39 through the confirmation passage 281 of the third wastewater separation membrane 28, thereby allowing the user to easily. Of course, the flow of the waste water can be confirmed with the naked eye, and a certain amount of the waste water can be supplied to the microbial growth reaction tank 40.

On the other hand, the flow rate and the return sludge control means 20 is supplied to the microbial growth reaction tank 40 in a quantitative manner while the user visually checks the settling sludge 51 supplied from the settling tank 50.

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

In addition, the conveying sludge supplied to the conveying sludge supply space part 232 of the conveying sludge adjusting space 23 is partially conveyed by the height of the lifting film 35 which is lowered by the adjusting member 36. The sludge is bypassed through the conveying sludge bypass pipe 33 and an appropriate amount of sludge is supplied to the conveying sludge smooth space portion 233.

In addition, the conveying sludge supplied to the conveying sludge smooth space part 233 is smoothed without the surface flowing by the conveying sludge second separation membrane 37, and is supplied to the conveying sludge smooth space part 233. The conveyed sludge is supplied to the mixing space 39 through a substantially 'V' shaped confirmation passage 381 formed in the third sludge separation membrane 38.

That is, the conveying sludge supplied to the conveying sludge smooth space part 233 is smoothed by the conveying sludge separation membrane 37 and mixed through the confirmation passage 381 of the third sludge separating membrane 38. As it is supplied to the space 39, the user can easily check the flow of the returned sludge as well as to supply a predetermined amount of the returned sludge to the microbial growth reaction tank 40.

In addition, the wastewater 11 supplied to the microbial growth reaction tank 40 is treated by the oxygen supplied by the aeration device 41 by the physical adsorption and biochemical methods.

On the other hand, since the microbial growth means (42, MBBR) is distributed in the microbial growth reaction tank 40 in the range of 30-70% of the volume, the growth of microorganisms in the microbial growth aeration tank 40 is maximized Hazardous substances contained in the waste water 11 can be separated by more efficient adsorption and decomposition.

In addition, since the microbial growth means 42, MBBR is distributed in the microbial growth reaction tank 40, it is possible to increase the treatment efficiency of harmful substances with a smaller size than the conventional aeration tank.

That is, the microbial growth means 42 (MBBR) is a cylindrical body portion 421 having a diameter of about 10 mm and a height of about 10 mm and a through hole to facilitate contact of the waste water 11, and the body portion 421. ) The main body portion which flows more efficiently by engaging a plurality of protrusions 423 protruding to the outside of the main body portion 421 and the protrusions 423 so that impact mitigation and flow is more activated. Since the growth of the microorganism at 421 is made of a growth unit 422 integrally formed in a cross shape inside the body portion 421, since the density of the polyethylene is generally 0.92-0.96 g / cm ³ In the microbial growth aeration tank 40, the flow is smooth, and its surface area is approximately 500m ² / m ³ to maximize the growth of microorganisms, so the harmful substances contained in the wastewater 11 are physically adsorbed and biochemically Inn room Than would be presented by the efficient processing.

In addition, since sludge is not generated in comparison with the conventional aeration tank, it is possible to perform operation management more efficiently.

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

On the other hand, the treated water efficiently processed in the microbial growth reaction tank 40 is supplied to the settling tank (50).

At this time, the plurality of microbial growth means 42, MBBR inherent in the microbial growth reaction tank 40 is not supplied to the precipitation tank 50 by the filtering means provided at the outlet of the microbial growth reaction tank 40 Will remain in the microbial growth reaction tank 40,

In addition, the treated water supplied to the settling tank 50 is the supernatant water 70 in which the suspended solids are firstly removed by the suspended solids and the settling sludge removing means 60 installed in the settling tank 50 and the settling sludge 51 is removed. The supernatant water 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 to the lower surface of the settling tank 50, the settling sludge settled to the lower portion of the settling tank 50 is the power generating member ( Centralized by the sedimentation sludge collection member 63 rotated by 61, it is supplied to the flow rate and conveying sludge adjusting means 20 through the sedimentation sludge conveying pipe 64.

In addition, the suspended solids such as SS floating on the surface of the float separation prevention container 65 of the sedimentation tank 50 is collected by the float collecting member 67 rotated by the power generating member 61 and then the It is discharged to the outside of the settling tank 50 through the float transfer pipe (68).

On the other hand, the supernatant water 70 passing through the settling tank 50 contains a suspended solids such as SS, etc., the suspended solids are secondarily removed by the filtering means (80, MCF).

That is, the upper porous 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 settling tank 50 is connected to the supernatant inlet 86. Inflow the supernatant that passed.

In addition, the supernatant introduced into the main body 82 through the supernatant inlet 86 passes through the filtering member 81, as shown in FIG. 10C, so that the suspended solids contained in the supernatant is filtered. Filtered by 81.

That is, the supernatant water passing through the filtering member 81 is converted into clean water from which the floating material is removed and is discharged to the discharge tank through the clean water outlet 87.

On the other hand, after discharging the required amount of clean water, the elevating member as shown in Fig. 10D to the upper porous plate 85 in which the filtering member 81 of the filtering means 80 (MCF) is fixed at a constant pressure. Moving to the top dead center (84) and through the washing water inlet 88 and the back-air inlet 90 to introduce the washing water and air into the body portion 82, respectively, attached to the filtering member 81 Desorbs suspended solids.

In addition, after the floating material attached to the filtering member 81 is detached, the washing water containing the floating material is discharged to the outside through the washing water outlet 89.

That is, the filtering means (80, MCF) according to the present invention by filtering the suspended solids so that the user to achieve the water quality of the target value of the use value is doubled, as well as can be cleaned without replacing the conventional media like Because it can be reused, the operation management cost is greatly reduced.

In addition, since the filtering member 81 inherent in the filtering means 80 and MCF is manufactured by being heat-sealed with fiber yarn, manufacturing cost can be greatly reduced and semipermanently used.

As described above, according to the wastewater treatment apparatus according to the present invention, it is possible to facilitate semi-permanent operation and management with minimal space and minimum cost, and it is possible to manage not only BOD (biological oxygen demand) and COD (chemical oxygen demand) but also wastewater. There is a very good effect of obtaining high quality clean water by drastically lowering nitrogen concentration, phosphorus concentration and suspended solids concentration.

Claims (6)

A wastewater treatment apparatus for purifying wastewater generated in rivers, lakes, factories, etc .; Flow control space so that the user can visually check the waste water stored in the flow control tank 10 at an equal flow rate without clogging, and at the same time, the return sludge can be supplied evenly without clogging while the user checks the naked eye. 22) a flow rate and conveying sludge adjusting means 20 having a conveying sludge adjusting space 23 and a mixing space 39; BOD (biological oxygen demand), COD (organic oxygen demand) in a minimum space by the organic adsorption and biochemical methods contained in the waste water supplied from the flow rate and the return sludge control means 20 Chemical oxygen demand), nitrogen concentration, phosphorus concentration, etc., to keep the microorganisms in optimal condition to be processed more efficiently, and the density is 0.92-0.96g / cm ³ to facilitate the flow in water and polyethylene ( microbial growth means (40, MBBR) made of a polyetylene material in the range of 30-70% of the total volume of the microbial growth reaction tank (40); Precipitation tank 50 is installed to remove the suspended solids such as SS contained in the treated water treated in the microbial growth reaction tank 40 and at the same time to separate the precipitate sludge and the sludge removal means 60 and ; To filter the suspended solids contained in the supernatant generated in the settling tank 50 to be converted into clean water, to remove the suspended solids secondary, and heat-sealed the fiber yarn a plurality of filtering members consisting of 15mm-20mm ( The wastewater treatment apparatus, characterized in that consisting of 81 is built-in filtering means (80, MCF). The method of claim 1; The flow rate and conveying sludge adjusting means 20, A main body portion 21 having an upper portion open and having a flow rate adjusting space 22, a conveying sludge adjusting space 23, and a mixing space 39 separated therefrom; A waste water supply pipe 31 positioned in the flow control space 22 so that waste water is supplied to the flow control space 22 of the main body 21; Partial waste water is bypassed to the flow regulating tank 10 so that the waste water supplied from the waste water supply pipe 31 is supplied to the microbial growth reaction tank 40 in an appropriate amount, and the flow regulating tank 10 and the main body portion ( A wastewater bypass pipe 29 connected to 21), A conveying sludge supply pipe 32 positioned in the conveying sludge adjusting space 23 so that a conveying sludge is supplied to the conveying sludge adjusting space 23; The return sludge bypass pipe 33 connected to the main body 21 while bypassing a part of the return sludge so that the return sludge supplied through the return sludge supply pipe 32 is supplied to the microbial growth reaction tank 40 in an appropriate amount. Waste water treatment device, characterized in that consisting of. The method of claim 1, The wastewater bypass space portion 221 of the flow control space 22 is formed by the wall of the body portion 21 and the first wastewater separation membrane 24, The wastewater supply space part 222 of the flow regulating space 22 is formed by the first wastewater separation membrane 24 and the second wastewater separation membrane 27, The waste water smoothing space portion 223 of the flow regulating space 22 is formed by the second wastewater separation membrane 27 and the third wastewater separation membrane 28, The wastewater first separation membrane 24 bypasses the wastewater supplied through the wastewater supply pipe 31 so that the wastewater supplied through the wastewater supply pipe 31 is supplied to the microbial growth reaction tank 40. Is installed by the lifting film 25, which is moved by Shanghai, The conveying sludge waste space part 231 of the conveying sludge adjusting space 23 is formed by the wall of the main body part 21 and the conveying sludge first separation membrane 34, The conveying sludge supply space part 232 of the conveying sludge adjusting space 23 is formed by the conveying sludge first separator 34 and the conveying sludge second separator 37, The conveying sludge smoothing space part 233 of the conveying sludge adjusting space 23 is formed by the conveying sludge second separator 37 and the conveying sludge third separator 38, The return sludge supply pipe 32 is supplied to the return sludge first separation membrane 34 of the return sludge control space 23 so that an appropriate amount of return sludge supplied through the return sludge supply pipe 32 is supplied to the microbial growth reaction tank 40. Bypassing the conveying sludge supplied through the waste water treatment apparatus, characterized in that the lifting film 35 is moved by the adjustment member 36 is installed. The method of claim 1, The microbial growth means (22, MBBR), The density is generally 0.92-0.96 g / cm ³ made of polyethylene material to maximize the growth of microorganisms in a narrow space to efficiently adsorb and decompose harmful substances and to easily flow in the microbial growth reaction tank (40). And its surface area is approximately 500m ² / m ³ , A cylindrical body portion 421 having a diameter of about 10 mm and a height of about 7 mm and having a through hole to smoothly distribute the waste water 11, A plurality of protrusions 423 protruding from the outside of the main body 421 so that the flow is more activated when the main body 421 collides with each other, The growth unit 422 is formed integrally in a cross shape in the body portion 421 so that the growth of the microorganism in the body portion 421 flows more efficiently by engaging the protrusion 423 Waste water treatment apparatus, characterized in that. The method of claim 1, The suspended matter and sediment removal means 60, At the same time to remove the suspended solids such as SS contained in the treated water supplied from the settling tank 50 and generates a rotating power to forcibly bypass the settling sludge to the flow rate and conveying sludge control means (20) A power generating member 61 provided with a rotating shaft 62 in the longitudinal direction of the settling tank 50, A sedimentation sludge collecting member 63 installed at the bottom of the rotating shaft 62 to collect the sedimentation sludge that is rotated by the rotational power of the power generating member 61 and deposited on the bottom of the sedimentation tank 50 at the center; The floating water collecting member 67 is installed on the upper portion of the rotary shaft 62 so as to rotate in conjunction with the sedimentation sludge collecting member 63 to primarily remove floating substances such as SS floating on the surface of the settling tank 50. , It is made of a float transport pipe 68 installed through the settling tank 50 so that the suspended solids collected by the rotation of the float collecting member 67 is discharged to the outside of the settling tank 50, The sedimentation tank (50) has a float separation prevention tank (65) at the center of the settling tank (50) so that the suspended solids contained in the treated water supplied from the microbial growth reaction tank (40) is not spread as a whole. Is installed, the end of the treatment water supply pipe 66 is located inside the float prevention prevention tank (65) so that the treated water supplied from the microbial growth reaction tank (40) is supplied to the interior of the float escape prevention tank (65) Waste water treatment device, characterized in that. The method of claim 1, The filtering means 80, MCF, The main body portion 82 is sealed in a cylindrical shape by accommodating the filtering member 81 to form a space for filtering the suspended solids contained in the upper water. It is fixedly installed on the inner bottom of the main body portion 82 and is filtered by the filtering member 81 to allow the clean water to be converted and at the same time the filtering member 81 so that the filtering member 81 does not leak out than the filtering member 81 A lower perforated plate 83 in which a plurality of small diameter holes are drilled, The elevating member 84 is installed in the main body 82 opposite to the lower porous plate 83 so that the elevating member 84 can lift and lower the filtering member 81 in 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 leak; The purified water inflowed through the upper water inlet 86 connected to the main body 82 provided with the upper porous plate 85 and the upper water inlet 86 to filter the suspended solids by the filtering member 81. A clean water outlet 87 connected to a lower portion of the main body 82 so as to be discharged to the outside of the main body 82; A washing water inlet 88 which is connected to the main body 82 to which the clean water outlet 87 is connected to introduce washing water for washing the filtering member 81 into the main body 82; It is supplied to the inside of the main body 82 with the washing water introduced through the washing water inlet 88 to expand the filtering member 81 to its original state and at the same time detach the floating material attached to the filtering member 81. And backwash air inlet 90 through which air is injected to The washing water outlet 89 connected to the main body 82 so that the washing water containing the air supplied through the backwash air inlet 90 and the suspended matter desorbed by the washing water are discharged to the outside of the main body 82. Waste water treatment apparatus comprising a filtering means (80, MCF) consisting of.