KR101611189B1

KR101611189B1 - Continuous leachate treatment apparatus and using method of the same

Info

Publication number: KR101611189B1
Application number: KR1020150092730A
Authority: KR
Inventors: 한창호; 강성민; 이동건; 문형철
Original assignee: 회명마루지오㈜
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2016-04-11

Abstract

The present invention relates to a method and an apparatus for continuous sewage and wastewater treatment. More particularly, the continuous sewage and wastewater treatment method comprises the steps of: injecting sewage and wastewater to a reaction tank and preparing a first treatment liquid including coagulates formed by a reaction between the sewage and wastewater and a coagulant; injecting the first treatment liquid to a pressure flotation tank to form dissolved sludge and preparing a second treatment liquid by removing the dissolved sludge; and injecting the second treatment liquid to a filtration tank and filtering by a ceramic filter module. According to the present invention, the sewage and wastewater treatment method can reduce BOD and COD after treatment and, particularly, can drastically reduce SS. In addition, the treatment method can simplify the process and the apparatus and can efficiently purify sewage and wastewater, thereby having an excellent economic efficiency such as costs of facilities and maintenance, etc.

Description

TECHNICAL FIELD [0001] The present invention relates to a continuous wastewater treatment apparatus and a method for treating wastewater using the same.

TECHNICAL FIELD The present invention relates to an apparatus for treating wastewater containing leachate and the like, and a method for treating wastewater using the same. More particularly, the present invention relates to an apparatus for treating wastewater by physically / chemically purifying wastewater and a method for treating wastewater using the same.

In Hyundai, a large amount of wastes such as garbage are generated in general homes, factories, farms, etc., and the wastewater generated from these various wastes seriously pollutes natural environments such as rivers and rivers. Therefore, the necessity of a method of artificially purifying these various wastes is already known.

Especially, with the development of food culture, wastes generated from foods and the like are generated in large quantities, and the amount of leachate, which is one of the wastewater generated from such wastes, is increasing exponentially.

Therefore, various methods and apparatuses are used to solve this problem, and researches for more efficient purification are also being steadily carried out.

In general, known purification treatment methods include biological methods using activated sludge, microorganisms and the like, chemical methods using chemical reactions, and physical methods using electronic or ultrasonic waves.

For example, Korean Patent Publication No. KR2006-0111126A discloses a method for physically and chemically coagulating and precipitating colloidal and insoluble suspended substances contained in various kinds of wastewater and repeatedly separating and removing the same.

Korean Patent Registration No. KR0385847B1 relates to a food leachate treatment system, and it is known to include a constitution such as to filter out sludge in a squeezing tank and to separate fine particles of contaminants from the inside of the separation tank.

However, according to the conventional treatment methods as described above, not only stable and complete purification is performed, but also there is a problem that the cleaning efficiency is low due to a high operation ratio required for purification. The chemical method is advantageous in that the reaction is quick and the process is simple. On the other hand, even when decomposing organic matter difficult to be biologically treated, the problem of treating the leachate generated from food alone is costly have. Physical methods are used for decomposing degradable substances such as benzene compounds or halogen compounds which are difficult to treat by biological methods or chemical methods. However, the treatment of such leachates is not suitable because of its small effect on the equipment cost and maintenance cost .

Until now, biological methods using active sludge or microorganisms have been mainly used to treat wastewater. However, since the biological reaction of the microorganisms is limited, the leachate produced by the high concentration of the wastewater, especially the food, and the wastewater from the living wastewater, is high in concentration, so the biological treatment is insufficient and the environment is affected by time and temperature , A large installation area, and the like. In addition, the fraction of biological organic matter is lowered due to a low ratio of the biochemical oxygen demand (BOD) / chemical oxygen demand (COD), and the leachate generated from foods and the like contains a relatively large amount of nitrogen compounds Because of this, there are many difficulties in processing by biological methods. The leachate is a high concentration wastewater such as pH 3 ~ 4.5, SS 50,000 ppm, BOD 50,000 ppm, COD 40,000 ppm, TN 3,000 ppm, TP 2,000 ppm, and so on. And it is very difficult to treat with activated sludge without syrup, so that only a large amount of equipment and maintenance costs are required to increase the facility.

As described above, such a wastewater treatment system may use a physical filtration method in combination. However, when the filtration method and the chemical / biological treatment method are combined, there are many problems in the filtration filter used for filtration.

In general, the filtration filter is a consumable product, and the filtration efficiency is lowered with time. When the filtration filter is used in combination with a chemical / biological treatment method, durability and chemical resistance are further reduced and a large maintenance cost is required. There is a problem that is greatly deteriorated.

Korean Patent Publication KR2006-0111126A (2006.10.26) Korean Registered Patent KR0385847B1 (2003.05.19)

It is an object of the present invention to provide a continuous wastewater treatment apparatus and a wastewater treatment method using the wastewater treatment apparatus which can more efficiently treat wastewater and more specifically to reduce BOD and COD after treatment, The present invention is to provide a continuous wastewater treatment method and apparatus which can efficiently purify wastewater even if the process and the apparatus can be simplified, and which is also economical in terms of facility and maintenance cost.

Another object of the present invention is to provide a continuous wastewater treatment device having a ceramic filter module having excellent durability, heat resistance, regeneration, stability, non-adhesion of contaminants, chemical resistance and stain resistance, And a method for treating wastewater using the same.

The continuous wastewater treatment apparatus of the present invention comprises a reaction tank in which a first treatment liquid containing aggregates generated by aggregation of wastewater and flocculant is formed, a pressurized floating tank in which a first treatment liquid is collected and dissolved sludge is formed from the reaction tank, And a filtration tank through which the second treatment liquid, from which the dissolved sludge discharged from the pressurized floating tank is removed, is filtered by the ceramic filter module.

In one embodiment of the present invention, the ceramic filter module may include, for example, a ceramic membrane, and the second treatment liquid may be absorbed under reduced pressure through one surface of the ceramic membrane.

In one embodiment of the present invention, the interior of the ceramic film may be formed with a collection channel, for example, and the filtered water may be discharged through the collection channel.

In one embodiment of the present invention, the ceramic filter module may further include a header for storing and discharging filtered water discharged from a collection channel.

In one embodiment of the present invention, the ceramic filter module may further include a header module for storing and discharging filtered water collected from a plurality of the headers.

In one embodiment of the present invention, for example, a plurality of ceramic films may be disposed apart from each other.

In one embodiment of the present invention, the continuous wastewater treatment apparatus may further include an air floating module positioned below the ceramic filter module.

In the continuous wastewater treatment method of the present invention,

S1) introducing wastewater into the reaction tank to form a first treatment liquid containing aggregates formed by coagulation with the flocculating agent, S2) injecting the first treatment liquid into the pressurized floating tank to form dissolved sludge, To form a second treatment liquid; and S3) injecting the second treatment liquid into a filtration tank and filtering the same through a ceramic filter module.

In one embodiment of the present invention, the ceramic filter module may include a ceramic membrane, and the filtrate may be discharged through a collection channel inside the ceramic membrane by absorbing the second treatment solution under reduced pressure through one surface of the ceramic membrane.

The continuous wastewater treatment apparatus of the present invention and the wastewater treatment method using the same have the effect of treating the wastewater more efficiently by applying the ceramic filter module to the filtration process or the apparatus. Specifically, it is possible to reduce the COD and BOD after the treatment, in particular to significantly reduce the SS (Suspended Solid), and to purify the wastewater efficiently, although the process and the apparatus can be simplified, The economic efficiency of the system is also excellent.

In addition, the ceramic filter module is excellent in equipment efficiency and maintenance efficiency because it has excellent characteristics such as durability, heat resistance, regeneration, stability, chemical resistance and stain resistance, and has a structure in which contaminants are hardly adhered, , And the wastewater can be finally purified efficiently.

Fig. 1 is a diagram showing an example of the wastewater treatment apparatus of the present invention,
2 is a plan view of a ceramic filter module according to an exemplary embodiment of the present invention,
3 is a side view of a ceramic filter module according to an embodiment of the present invention,
FIG. 4 is a front view of a ceramic filter module according to an exemplary embodiment of the present invention,
5 is a front view (left) and a side view (right) of a ceramic film according to an example of the present invention,
FIG. 6 is a perspective view and a filtration flow direction of a ceramic membrane according to an embodiment of the present invention,
FIG. 7 is a diagram illustrating a filtration flow step according to an example of the present invention. FIG.

Hereinafter, a continuous wastewater treatment apparatus of the present invention and a wastewater treatment method using the same will be described in detail with reference to the accompanying drawings.

Where a drawing is described, it is provided as an example to enable those skilled in the art to fully understand the spirit of the invention. Therefore, the present invention is not limited to the illustrated drawings, but may be embodied in other forms, and the drawings may be exaggerated in order to clarify the spirit of the present invention.

Hereinafter, the technical and scientific terms used herein will be understood by those skilled in the art without departing from the scope of the present invention. Descriptions of known functions and configurations that may be unnecessarily blurred are omitted.

As used herein, the term wastewater is a liquid type polluted water generated from a consumer's life, an industrial activity, or a natural phenomenon, and may include solid matter such as sludge and colloid. , But is preferably leachate resulting from landfill such as food, animal wastes, industrial wastes and the like.

Also, in this specification, the pipes for flowing the wastewater, the first treatment liquid, the second treatment liquid, the second treatment liquid, and the filtered water are not shown in the description of the substrate, but these are merely self- Belong to the concept of the present invention.

The term " device " as used herein also encompasses a method and belongs to the concept of the present invention.

Hereinafter, the continuous wastewater treatment apparatus of the present invention and the wastewater treatment method using the same will be described in detail.

The continuous wastewater treatment apparatus of the present invention comprises a reaction tank 100 in which a first treatment liquid containing aggregates formed by coagulation of wastewater and flocculant is formed, a first treatment liquid is collected from the reaction tank 100 to form a dissolved sludge And a filtration tank 300 in which the second process liquid, from which the dissolved sludge discharged from the pressurized floating tank 200 is removed, is filtered by the ceramic filter module 310.

The second treatment liquid discharged from the pressurized floating vessel 200 is filtered by the ceramic filter module 310 so that a ceramic membrane 313 in the ceramic filter module 310 ) And the like can be separated from the micropores. Therefore, the residual ions generated by the flocculant or the like and the unnecessary ions contained in the wastewater can be separated and removed.

1 to 4 and 7, the ceramic filter module 310 may include, for example, a ceramic film 313, and may be formed on one side of the ceramic film 313 The second treatment liquid can be absorbed under reduced pressure and filtered. The ceramic film is shown in Figs.

Generally, the filter module used for filtration is filtrated by a pressurizing method which exerts pressure on the outside of the filter module, so that the characteristics such as durability, heat resistance, regeneration, and stability are poor, The facility efficiency and the maintenance efficiency also deteriorate. However, since the decompression absorption is performed by a sucking (absorbing) method including the header 317a from the inside of the filter module by the external pump 317c or the like (lowering the internal pressure), the durability, heat resistance, regeneration, And the like, as well as a structure in which the contaminants are hardly attached. That is, the reduced pressure absorption means that the pressure inside the ceramic filter module 310 is lowered to absorb the material from the outside with a relatively high pressure. Such a reduced pressure absorption can be more effective in properties such as durability when applied to a ceramic film and can reduce BOD and COD when treating a second treatment liquid from which dissolved sludge has been removed, And the like can be greatly reduced, which can be more effective in the purification efficiency.

6, a water collecting passage 314 may be formed inside the ceramic membrane 313, and the filtered water may be discharged through the water collecting passage 314. In this case, Furthermore, the water collecting passage 314 may be formed in a tubular shape as shown in FIG. However, this is a preferable example, and it is not limited as long as the filtrate can flow.

The ceramic filter module 310 may further include a header 317a for storing and discharging filtered water discharged from the collecting passage 314 of the ceramic membrane 313. [ 5 and 7, the header 317a is formed at one end of the ceramic membrane 313 to collect the filtered water discharged from the water collecting passage 314 formed in the ceramic membrane 313, As shown in FIG.

In one embodiment of the present invention, the ceramic filter module 310 may further include a header module 317 for storing and discharging filtered water collected from a plurality of the headers 317a. The header module 317 collects filtered water discharged from the water collecting passage 314 and collects the collected water to be discharged to the outside by absorbing the pressure.

In the exemplary embodiment of the present invention, the header module 317 may further include a filtered water outlet 317b, and serves to discharge the filtered water collected in the header module 317. FIG.

The continuous wastewater treatment apparatus according to the present invention may include a pump 317c to lower the pressure of the ceramic filter module 310 so that the ceramic filter module 310 can be absorbed under reduced pressure to absorb the second treatment liquid or the filtered water . Therefore, the filtered water is absorbed in the direction of the ceramic membrane 313, the collecting passage 314, the header 317a, the header module 317 and the filtered water outlet 317b, flows, and is discharged.

As shown in Fig. 7, the pump 317c may be disposed in a pipe behind the filtration water discharge port 317b in the direction in which the filtrate water is discharged, which is opposite to the pressurization mode.

In one example of the present invention, a plurality of ceramic films 313, for example, may be disposed apart from each other, as shown in Figs. 2 and 4. Fig. Also, the specific spacing and arrangement is not limited as it is readily adjustable by those skilled in the art.

The filtration tank 300 may further include an air floating module 311 provided below the ceramic filter module 310. [ When air is supplied from the air tank 312 to the lower portion of the ceramic filter module 310 in the process of being filtered by the ceramic filter module 310, unfiltered fine sludge or the like is attached to the outer surface of the ceramic filter module 310 The problem that the filtration efficiency is lowered can be prevented. Specifically, the second process liquid in the filtration tank 300 is not circulated by the air generated from the lower part of the ceramic filter module 310, and the internal process is continuously performed, so that fine sludge and the like are formed on the outer surface of the ceramic filter module 310 It is possible to prevent the problem of adhering. Such an air circulation structure can improve the filtration efficiency more effectively by the combination of the ceramic filter module of the decompression absorption type. In the case of the pressurization type, the air flotation module 311 The air circulation inside the filtration tank 300 may not be smooth.

In one embodiment of the present invention, the ceramic film 313 is not limited as long as the object of the present invention is achieved. For example, any one selected from alumina, titania, silicon carbide, silicon nitride, zirconia, zeolite, And may include two or more. When the ceramic membrane 313 is alumina, wastewater (leachate) generated in food or the like can be more effectively filtered in the wastewater treatment apparatus according to the present invention.

In one example of the present invention, the ceramic film 313 is not limited to attain the object of the present invention, but it is preferable to have a porosity of 0.001 to 10 탆, preferably 0.01 to 1 탆, more preferably 0.05 to 0.5 탆 Size. As a specific, non-limiting example, it may be desirable to have a ceramic membrane 313 of 0.1 μm pore size. When the pore size within the above range is satisfied, deterioration of durability due to reduced pressure absorption and adhesion of contaminants can be prevented.

In one example of the present invention, the interior of the reaction vessel 100 includes a first compartment 121, which is coagulated with an inorganic coagulant, a second compartment 122, which is coagulated with an organic coagulant, and a second compartment 122, And a partition 123 formed to separate from the lower surface of the reaction tank. The reaction tank 100 includes a first compartment 121 for collecting wastewater and an inorganic coagulant 151 to form a first coagulum, an organic wastewater (or first coagulant) and an organic coagulant 152 A second compartment 122 for forming a second aggregate by agglomeration and a partition 123 separating the first compartment 121 and the second compartment 122 from the lower surface of the interior of the reaction tank 100 . Although not shown in FIG. 1, the three-dimensional space formed by the height corresponding to the length between the lowermost portion of the partition 123 separated in the vertical direction from the lower surface of the reaction tank 100 and the bottom surface of the reaction tank 100, Is a space formed in the lower part of the compartment 121 and the lower part of the second compartment 122 and is a common area where both coagulation with an inorganic coagulant and coagulation with an organic coagulant can occur. Therefore, the size and position of the common area can be changed flexibly within a range equal to or greater than a predetermined value.

In the example of the present invention, the length (height) of the partition wall in the vertical direction from the lower surface of the reaction tank 100 is preferably 10 to 70%, more preferably 10 to 70% 20 to 60%, more preferably 25 to 55%. When the above range is satisfied, the coagulation with the inorganic coagulant and the coagulation with the organic coagulant can proceed in the first compartment 121 and the second compartment 122, respectively, It is possible to carry out an efficient continuous treatment capable of continuously inducing coagulation with the organic coagulant and coagulation with the organic coagulant.

In an example of the present invention, the wastewater and the inorganic flocculant may be independently introduced into the first compartment 121, and the organic coagulant may be introduced into the second compartment 122. The aggregate having a relatively low specific gravity is increased in probability to exist in the lower portion of the first compartment 121, and thus the aggregate is moved to the second compartment 122 via the lower space. At this time, the wastewater containing the agglomerate is not completely agglomerated, and the wastewater containing the agglomerate can be agglomerated with the inorganic agglutinating agent, the organic agglutinating agent or both in a continuous process of moving through the space.

In one example of the present invention, the inorganic coagulant is not limited to attain the object of the present invention. For example, the inorganic coagulant may be selected from the group consisting of Polyaluminum Chloride (PAC), Polyaluminum Chloride Silicate (PACS) (PAHCSS), Polyaluminum Hydroxy Chloro Sulfate (PAHCS), Polyaluminum Sulfate Silicate (PASS), Aluminum Sulfate (AS), and Polysulfate Iron Ferric Sulfate (PFS), Ferric Sulfate (FS), Poly-Ferric Chloride (PFC), Ferric Aluminum (FA), Ferric Chloride (FC) (AFC), magnesium (Mg), calcium (Ca), and the like, which are selected from the group consisting of aluminum chloride, aluminum chloride, aluminum chloride, Or two or more. However, this is a preferable example, but the present invention is not limited thereto.

In one embodiment of the present invention, the organic coagulant is not limited to attain the object of the present invention, but may include any one or more selected from, for example, polyacrylamide-based, polybrominated-based, polyamine-based, and the like. However, this is a preferable example, but the present invention is not limited thereto.

In one embodiment of the present invention, the inorganic coagulant loading concentration may be 1,000 to 10,000 ppm, preferably 2,000 to 8,000 ppm, more preferably 3,000 to 4,000 ppm, and the organic coagulant loading concentration may be 10 to 800 ppm, Preferably from 100 to 600 ppm, more preferably from 300 to 400 ppm. This may mean the concentration of the flocculant relative to the total weight of the wastewater in the reaction tank 100. From the viewpoint of a continuous wastewater treatment apparatus, it can mean the concentration of the flocculant to the wastewater flow rate at the moment of introduction.

In an embodiment of the present invention, the reaction tank 100 may further include a stirring module including a blade 130 to induce an efficient reaction. But may be provided within each of the first compartment 121 and the second compartment 122, respectively. The position of the blade is not limited as long as it is inside the reaction tank 100. It is preferable that the blade 121 is provided in the lower region of the partition wall 123 inside the reaction tank 100 in the first compartment 121 and the second compartment 122 ) Can be improved. In addition, it is preferable that the wastewater containing the agglomerate can smoothly pass through the space formed below the first compartment 121 and the second compartment 122 and coagulate continuously. This agitation module agitates and disperses the wastewater to agitate and disperse the wastewater, so that the flow rate and the total wastewater (or wastewater containing the agglomerate) in the reaction tank 100 can be reacted uniformly as well as the agglomeration, .

In one example of the present invention, the continuous wastewater treatment apparatus according to the present invention may further include an endless track type sludge removal module 210 located above the pressurized floating vessel 200, Removal module 210 may remove dissolved sludge floating on the surface layer of the first treatment liquid collected in the pressurized floating tank 200. [

In the example of the present invention, when the pressurized floating vessel 200 generates air at a lower portion and forms dissolved sludge combined with air, the aggregate increases its apparent specific gravity through binding with air, . Therefore, only the dissolved sludge can be separated and removed by the endless track type sludge removal module 210. That is, the endless track type sludge removing module 210 physically removes the dissolved sludge floating on the surface layer of the first treatment liquid collected in the pressurized floating tank 200. Accordingly, the second process liquid from which the dissolved sludge has been removed is transferred to the filtration tank 300 through the discharge port 201 formed on one surface of the pressurized floating tank 200.

As shown in FIG. 1, the endless sludge removing module 210 may be coupled to the upper portion of the pressurized floating vessel 200.

In an exemplary embodiment of the present invention, the endless track type sludge removal module 210 includes:

Drive motor,

A driven belt 212 mounted on a rotary shaft installed to rotate by a driving force transmitted by a driving chain or a driving gear 211 coupled to a driving sprocket fixed to the driving motor,

A scraper 213 fixed to the driven belt so as to rotate and linearly move along the driven belt to transfer the dissolved sludge to the first sludge tank,

. &Lt; / RTI > In addition, the module 210 may include various components or unit modules such as an idler gear, an idler shaft, an idler chain, and the like in order to efficiently transmit power.

The dewatering sludge floating on the surface layer of the first treatment liquid collected in the pressurized floating tank 200 by the plurality of scravers 213 of the endless track type sludge removal module 210 is mechanically straight And the dissolved sludge can be continuously removed through the rotary motion.

In an embodiment of the present invention, the module 210 may further include a separation plate 214 to more efficiently operate the sludge removal by the endless sludge removal module 210. For example, the separating plate 214 may be disposed under the endless sludge removing module 210 and between the surface layers. That is, a discharge port 201 through which the liquid can pass is formed on one surface of the pressurized floating tank 200, and the dissolved sludge is selectively supplied to the upper part of the separating plate 214 by the linear motion of the plurality of scravers 213 And the lower part of the separation plate 214 is transferred to the filtration tank 300 through the discharge port 201 via the first treatment liquid from which the dissolved sludge has been removed.

In an exemplary embodiment of the present invention, the pressurized floating vessel 200 may further include a sludge retaining part 202 to which the dissolved sludge separated by the endless track type sludge removing module 210 is transferred and stored. The dissolved sludge can be retained in the sludge retaining part 202 for a predetermined period of time and overload can be prevented which exceeds the limit demand of the dissolved sludge separated by the plurality of scrapers 213. That is, when the demand exceeds the limit demand, the overflow is automatically overflowed and the separation plate 214 is re-passed to the pressurized floating tank 200. Accordingly, the flow rate of the water to be transferred to the first sludge tank 220 is automatically adjusted to prevent overload. Thus, the dissolved sludge can be retained in the sludge storage 202 for a predetermined period of time, and then transferred to the first sludge tank 220.

In one embodiment of the present invention, the separation plate 214 may be formed at an inclination angle of 0 to 45, preferably 5 to 30 degrees with respect to the surface layer. The dissolved sludge can be moved in the positive direction by the scraper 213 in the reverse direction due to the high inclination angle and the liquid remaining together with the dissolved sludge is automatically supplied to the pressurized floating tank 200 in the reverse direction by the inclination angle Lt; / RTI > However, the range of the inclination angle is a preferable example, but the present invention is not limited thereto.

In an exemplary embodiment of the present invention, the scraper 213 may have micropores through which liquid can pass, and may have various types of structures through which liquid can pass. In this case, the dissolved sludge can be separated and discharged more efficiently from the first treatment liquid as an effect of preventing the overload by the separation plate 214 and a synergistic synergistic effect.

In one example of the present invention, the micropores are not limited to achieve the object of the present invention, but may be, for example, 0.1 to 100 mu m.

In one example of the present invention, the discharge port 201 may be formed on one surface of the pressurized floating vessel 200, and serves to discharge the second process liquid. The second process liquid from which the dissolved sludge has been removed by the endless track type sludge removal module 210 of the pressurized floating tank 200 is discharged through the discharge port 201 and transferred to the filtration tank 300 provided with the filter module 310 do.

As described above, the wastewater is physically or chemically agglomerated in the reaction tank 100 to form a first treatment solution containing the aggregate, and then is transferred to the pressurized floating tank 200. In the pressurized floating tank 200, After forming the sludge, the dissolved sludge is removed. The second process liquid having the dissolved sludge removed is transferred to the filtration tank 300 having the ceramic filter module 310. The filtered water having passed through the ceramic filter module 310 is transferred to the filtrate tank, 310, and the remaining sludge is discharged to the second sludge tank 320.

In an example of the present invention, the continuous wastewater treatment apparatus according to the present invention may further include a backwash tank 340. The filtered water can clean the ceramic filter module 310 (or the ceramic film inside) before the filtered water is sent to the filtrate tank 330, thereby preventing deterioration in efficiency due to long-term operation .

In one example of the present invention, the continuous wastewater treatment apparatus according to the present invention may further include a bactericidal tank 350. It is possible to apply the sterilizing agent to the backwashing tank 340 itself by separating and storing purified water of the sterilizing agent and the backwashing tank 340. When the sterilization compound such as sodium hypochlorite ) Can be improved.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.

100: Reactor
121: First compartment
122: the second compartment
123:
130: blade
140: Wastewater tank
151: Inorganic flocculant tank
152: Organic coagulant tank
200: Pressurized floating tank
201: Outlet
202: Sludge holding section
210: Endless track type sludge removal module
211: drive gear
212: driven belt
213: Screw
214: separator plate
220: first sludge tank
300: filtration tank
310: Ceramic filter module
311: Air floating module
311a: air inlet
312: air tank
313: Ceramic film
314: Collecting road
315: direction of the second treatment liquid input
316: direction of filtrate discharge
317: Header module
317a: header
317b: filtrate outlet
317c: pump
320: Second sludge tank
330: Filtrate tank
340: Reverse cleaning tank
350: Disinfectant tank

Claims

A reaction tank in which a first treatment liquid containing aggregates formed by aggregation of wastewater and flocculant is formed;
A pressurized floating tank in which a first treatment liquid is collected from the reaction tank to form dissolved sludge; And
And a filtration tank in which the second treatment liquid, from which the dissolved sludge discharged from the pressurized floating tank is removed, is filtered by the ceramic filter module,
Wherein the reaction tank comprises: a first compartment in which wastewater and inorganic coagulant aggregate to form a first aggregate; A second compartment in which the wastewater or the first aggregate and the organic flocculant aggregate to form a second aggregate; And a partition wall separating the first compartment and the second compartment from each other, the lower end being spaced apart from a lower surface of the reaction vessel, and an upper end attached to an upper surface of the reaction vessel,
Wherein the pressurized floatation vessel is positioned at an upper portion of the pressurized floating vessel to separate dissolved sludge; A separation plate disposed between the lower portion of the endless track type sludge removal module and the first treatment liquid surface layer at an inclination angle of 5 to 30 degrees with the surface layer to separate dissolved sludge from the first treatment liquid; And a sludge retention unit formed at the bottom of the separation plate, the sludge retaining unit having the dissolved sludge separated by the endless track type sludge removing module transferred and retained and transferred to the first sludge tank,
The endless track type sludge removing module includes a plurality of scrapers for removing dissolved sludge suspended in a surface layer of the first treatment solution through linear and rotational movements, wherein the scraper includes fine pores of 0.1 to 100 μm ,
The ceramic filter module includes a ceramic membrane, and the second treatment liquid is filtered and absorbed by the first surface of the ceramic membrane. The inside of the ceramic membrane is treated with continuous wastewater treatment in which filtration water is discharged through the collection channel Device.

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The method according to claim 1,
Wherein the ceramic filter module further comprises a header for storing and discharging filtered water discharged from a collection channel.

5. The method of claim 4,
Wherein the ceramic filter module further comprises a header module for storing and discharging filtered water collected from a plurality of the headers.

6. The method of claim 5,
Wherein a plurality of said ceramic films are disposed apart from each other.

The method according to claim 1,
Wherein the ceramic film comprises any one or two or more selected from among alumina, titania, silicon carbide, silicon nitride, zirconia, zeolite, and mixtures thereof.

The method according to claim 1,
Wherein the ceramic membrane has a pore size of 0.001 to 10 mu m.

9. The method according to any one of claims 1 and 8 to 8,
Further comprising an air floating module positioned below the ceramic filter module.

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