WO2013162317A1

WO2013162317A1 - Apparatus and method for treating sewage and wastewater to remove nitrogen and phosphorus

Info

Publication number: WO2013162317A1
Application number: PCT/KR2013/003602
Authority: WO
Inventors: 이해군; 황경사; 주재영; 이상정; 정창화; 신동철
Original assignee: (주)태성종합기술
Priority date: 2012-04-26
Filing date: 2013-04-26
Publication date: 2013-10-31
Also published as: KR101337405B1; KR20130120563A

Abstract

The present invention relates to an apparatus and method for treating sewage and wastewater to remove nitrogen and phosphorus. More particularly, the present invention relates to an apparatus and method for treating sewage and wastewater, capable of separating the removal of nitrogen and the removal of phosphorus from sewage and wastewater so as to prevent the problems of faults in the apparatus, deficiencies in inorganic matter and the like caused by the combined removal, and capable of inducing phosphorus adsorption, phosphorus detachment and adsorbent reproduction processes at the same time in removing phosphorus, thus enabling continuous operation and achieving superior efficiency in removing nitrogen and phosphorus from sewage and wastewater.

Description

Wastewater treatment system and method for nitrogen and phosphorus removal

The present invention relates to a sewage and wastewater treatment apparatus and a method for removing nitrogen and phosphorus, which will be described in more detail. There is no problem such as an apparatus coming from the mixture by separating nitrogen removal and phosphorus removal from wastewater and lack of organic matter. In the removal of phosphorus, the adsorption, desorption, and adsorbent regeneration processes are simultaneously induced, thereby enabling continuous operation, and related to sewage and wastewater treatment devices and methods having excellent removal efficiency of nitrogen and phosphorus from sewage and wastewater.

Recently, due to the increase of population, the concentration of cities, and the rapid development of industry, environmental pollution is rapidly progressing, and the damage of the water environment is a serious problem. In addition, nutrients such as nitrogen and phosphorus are introduced into rivers and lakes, causing eutrophication, causing problems such as destruction of aquatic ecosystems due to the death of fish and shellfish, a decrease in the value of water resources, and an increase in water treatment costs.

In addition, nitrogen in the nutrients is mainly present in the form of organic nitrogen and ammonia nitrogen in the wastewater and waste water, and this form of nitrogen is released into water and then converted into nitrate nitrogen through the form of nitrite nitrogen. Dissolved oxygen is consumed in the process, which lowers the water quality. Therefore, in order to solve this problem, apparatuses for simultaneously treating organic matter, nitrogen and phosphorus by physical, chemical or biological unit processes have been developed.

The representative A2O (Anaerobic Anoxic Aerobic) reactor (method) is composed of anaerobic tank, anoxic tank, and aerobic tank to release phosphorus from the anaerobic tank to allow the microorganisms to ingest excessively in the aerobic tank. It denitrates the internal transport water and removes organic matter, nitrogen and phosphorus in aerobic tanks by causing oxidation and micro-intake of phosphorus. However, the A2O (Anaerobic Anoxic Aerobic) reactor (method) must remove nitrogen (N) and phosphorus (P) from the incoming sewage and wastewater at the same time, so problems due to lack of organic matter (substrate competition) and difficulties in operation (nitrogen: long There is a problem such as device failure due to SRT, phosphorus: short SRT).

Meanwhile, as a method of removing phosphorus (P) present in wastewater and wastewater, there are biological removal methods, flocculation-precipitation methods, crystallization methods, and adsorption methods. In the flocculation-precipitation method, phosphorus can be removed to low concentrations but stable treatment In order to achieve the efficiency, a large amount of chemicals are required, and there is a problem that the amount of sludge generated thereby increases. In addition, the biological removal method and the flocculation-precipitation method require a large installation area and a large amount of sludge is generated, and there is a problem that recovery of the removed phosphorus is also difficult. Due to such a problem, various techniques of adsorption methods are proposed. For example, Patent Registration No. 0864642 "Upflow expanded bed activated carbon adsorption filtration apparatus and cleaning method" includes an activated carbon adsorption tower; And an air compressor for injecting air into the activated carbon adsorption tower during the activated carbon cleaning operation. The activated carbon adsorption tower includes: a housing having an outlet at an upper end thereof and an inlet and a drain at the bottom thereof; An activated carbon adsorption filtration layer filled in the housing to form a water inlet space (Si) and a water outlet space (So) in the lower and upper portions, respectively; And an air injection member installed in the acquisition space Si to inject air supplied from the air compressor, wherein the air supplied to the acquisition space Si through the air injection member during the cleaning operation is The technology is characterized in that the back surface of the housing is stacked in the water discharge space So, and the water level inside the housing gradually decreases.

However, according to the above-mentioned technique, only the discharge of the treated phosphorus treated by adsorption does not suggest any alternative to recycling the treated phosphorus, and in the case of saturated adsorbents, only the structure and method by back washing are used. There is only a problem with the recycling of resources to recover the adsorbent. In addition, the phosphorus adsorption process, the process of desorbing phosphorus from the adsorbent adsorbed with phosphorus, and the process of regenerating the adsorbent dephosphorized with phosphorus proceed in time series, so that the desorption process and the adsorbent regeneration process are stopped. There is a problem that wastewater treatment must be temporarily stopped.

Therefore, the present invention solves problems such as substrate competition by separating nitrogen removal process and phosphorus removal process from incoming wastewater and wastewater, and when removing phosphorus, the desorption and adsorbent regeneration processes are operated without stopping the adsorption process. To provide a wastewater treatment system and construction method.

Waste water treatment apparatus for nitrogen and phosphorus removal of the present invention to achieve the above object is a nitrogen treatment unit consisting of an anaerobic tank and an aerobic tank; Phosphorus adsorption tank filled with adsorbent to adsorb phosphorus from influent and discharge of treated water, desorption tank for desorbing phosphorus from adsorbent adsorbed with phosphorus, adsorbent regeneration tank for desorbing adsorbent dephosphorized and It characterized in that it comprises a; a phosphorus treatment unit consisting of a withdrawal tank for recovering phosphorus from the influent containing phosphorus in communication.

In addition, the adsorption tank is characterized in that the adsorbent of the mesoporous structure is filled.

The wastewater treatment apparatus and method for nitrogen and phosphorus removal of the present invention configured as described above are to remove organic matter, SS and nitrogen by biological process in nitrogen treatment tank, and to remove phosphorus by adsorption process in the subsequent phosphorus treatment tank. By eliminating the equipment failure, lack of organic matter due to the complexity of the process there is an advantage that can be efficiently treated wastewater.

In addition, the sewage and wastewater treatment apparatus and method for removing nitrogen and phosphorus of the present invention can double the operation efficiency by allowing continuous operation without stopping in phosphorus adsorption, desorption, adsorbent regeneration and recovery of phosphorus when phosphorus is removed. There is an advantage.

1 is a schematic diagram showing a basic example of a wastewater treatment apparatus for nitrogen and phosphorus removal of the present invention,

2A and 2B are schematic views showing an embodiment of a phosphorous processing unit which is one configuration of the present invention.

On the other hand, in the present invention, the configuration of the adsorption tank, desorption tank, adsorbent regeneration tank, but the configuration for selectively operating each of them are presented, which will be described in detail in the present invention, the batch selection tank is configured, the batch The selection tank is divided into chambers each filled with an adsorbent. In this batch selection tank, each chamber is connected with a treatment water inflow line, a desorption solution inflow line, and a regeneration solution inflow line on one side by a valve, and the other side of the treatment water outflow line and a citation liquid outflow line are connected by a valve. Each chamber is characterized in that the selective operation of the adsorption tank, desorption tank, adsorbent regeneration tank.

Meanwhile, in the present invention, the adsorption tank, the desorption tank, and the adsorbent regeneration tank are configured, but other configurations for selectively operating each of them are presented, which will be described in detail. The outer frame is characterized by being configured in a circular shape constituting the adsorption section, the detachment section, the adsorbent regeneration section while forming a predetermined clearance. In addition, the inlet adsorption section includes a treatment water inlet line and a treatment water outlet line, the desorption section includes a desorption solution inlet line and a quotation solution outlet line, and the adsorbent regeneration section includes a regeneration solution inlet line. . In addition, the rotating tank is configured to be rotatable inside the outer frame, the chamber is filled with the adsorbent, respectively. Based on this configuration, the chambers respectively located in the adsorption section, the detachment section, and the adsorbent regeneration section may be selectively operated as the adsorption tank, the desorption tank, and the adsorbent regeneration tank by the rotation of the rotating tank.

Meanwhile, the present invention also proposes a wastewater treatment method for nitrogen and phosphorus removal using the wastewater treatment device for nitrogen and phosphorus removal.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred configuration of the present invention.

1 is a schematic view showing a basic example of a wastewater treatment apparatus for nitrogen and phosphorus removal of the present invention, Figures 2a and 2b is a schematic diagram showing an embodiment of a phosphorus treatment unit as one configuration of the present invention.

Wastewater treatment apparatus for nitrogen and phosphorus removal of the present invention is characterized in that it comprises a nitrogen treatment unit 100 and the phosphorus treatment unit 200 as shown in FIG. That is, the waste water is nitrogen removed while passing through the nitrogen treatment unit 100, and the treated water from which nitrogen is removed is passed through the phosphorus treatment unit 200 such that phosphorus is sequentially removed. In addition, the pretreatment unit 300 may be configured between the nitrogen treatment unit 100 and the phosphorus treatment unit 200. The pretreatment unit 300 may be formed of particulate organic matter, solid matter, and the like from treated water from which nitrogen is removed by filtration. Corresponds to the configuration to remove.

Referring to the nitrogen processing unit 100, the nitrogen processing unit 100 is characterized in that it is composed of an oxygen-free tank 110 and the aerobic tank 120.

In the anoxic tank 110 is not shown in the figure, but by being stirred to induce denitrification reaction to remove nitrogen. Although the aerobic tank 120 is not shown in the drawings, it is characterized in that nitrification and organic matter decomposition are performed by aeration by an aeration device. Although not shown in the drawing, the circulation means may be configured to allow circulation of mixed liquor suspended solids (MLSS) between the anoxic tank 110 and the aerobic tank 120, and a conveying means may be configured. As such, the nitrogen treatment unit 100 is composed of an anaerobic tank 110 and an aerobic tank 120, so that nitrogen removal is preceded by the removal of phosphorus without an anaerobic tank for phosphorus release, and organic matter such as ammonia in the wastewater is the aerobic tank 120. It is oxidized in, and to convey the mixed liquid to the oxygen-free tank 110 through the conveying means to induce denitrification. In addition, nitrification is induced in the aerobic tank 120, and the nitrified mixture is internally circulated to the oxygen-free tank 110 to induce denitrification to convert NO ₃ -N to N ₂ gas and remove the same.

The treated water that passed through the nitrogen treatment unit 100 as a bioreactor is then passed through the phosphorus treatment unit 200. The phosphorus treatment unit 200 is filled with an adsorbent 211 to adsorb phosphorus from the influent and treated. Phosphorus in communication with the phosphorus adsorption tank 210 for discharging water, the adsorption tank 220 for desorbing phosphorus from the adsorbent adsorbed with phosphorus, the adsorbent regeneration tank 230 for regenerating the adsorbent dephosphorized with phosphorus, and the desorption tank Characterized in that it consists of a withdrawal tank 240 to recover the phosphorus from the influent containing. That is, the phosphorus treatment unit 200 discharges the treated water from which phosphorus has been removed, and at the same time, regenerates phosphorus and adsorbent so that resources can be recycled.

As shown in FIG. 1, the phosphorus adsorption tank 210 adsorbs phosphorus contained in the inflow water by the adsorbent 211 filled therein to discharge the treated water.

To this end, the phosphorus adsorption tank 10 receives the treated water from which nitrogen has been removed from the nitrogen treatment tank 100 to adsorb the phosphorus by the adsorbent 211, and discharges the treated water from which the phosphorus has been removed. will be.

The adsorbent 211 filled in the phosphorus adsorption tank 10 is not limited to a kind thereof, but it is preferable to use a mesoporous structure. Si-based inorganic adsorbents can be used as the mesoporous structure, which selectively reacts only phosphorus (P) in water so that phosphorus is removed by ion exchange.

In addition, a titanium mesoporous structure may be used as another example of the adsorbent 211. The adsorbent 211 composed of the titanium mesoporous structure is formed by kneading the titanium hydrate aqueous solution and the surfactant aqueous solution, and the titanium hydrate of the titanium hydrate aqueous solution and the surfactant of the surfactant aqueous solution are hydrothermally synthesized. In more detail, the adsorbent 211 having a titanium mesoporous structure includes mixing a titanium hydrate aqueous solution and a surfactant aqueous solution, kneading a mixture of a titanium hydrate aqueous solution and a surfactant aqueous solution, and a titanium hydrate aqueous solution and a surfactant. The mixture of aqueous solution is prepared by the step of hydrothermally synthesizing.

The titanium hydrate of the titanium hydrate aqueous solution is TiOSO ₄ . _X H ₂ SO ₄ .H ₂ O (Titanium oxysulfate-sulfuric acid complex hydrate), and the surfactant solution of the surfactant solution may be CTAB (cetyl trimethyl-ammonium bromide). In addition, the concentration of the possible hydrate aqueous solution may be 5 ~ 10w-v%, the concentration of the surfactant aqueous solution is 3 ~ 7w-v%, the mixing ratio of the titanium hydrate and the surfactant may be 2 ~ 1: 1. The titanium hydrate aqueous solution and the surfactant aqueous solution are kneaded, and the titanium hydrate of the titanium hydrate aqueous solution and the surfactant of the surfactant aqueous solution are formed by hydrothermal synthesis, and the titanium meso structure thus formed is Ti (HSO ₄ ) (OH ) _3.5 (C ₁₉ H ₄₂ N) _0.5 2H ₂ O. The adsorbent 221 having a titanium mesoporous structure according to this manufacturing method has a phosphorous (P) adsorption performance improved by about 2 times compared to the meso structure in the conventional zirconium, and the manufacturing cost is about 18.75 times lower than that of the zirconium meso structure. Excellent economic feasibility.

The desorption tank 220 desorbs the phosphorus adsorbed on the adsorbent using a desorption solution (NaOH, Na ₂ CO ₃ ) to the adsorbent 211 in which phosphorus is saturated and adsorbed, and the solution containing phosphorus is the phosphorus recovery tank ( It corresponds to the configuration to flow to 240).

In addition, the adsorbent regeneration tank 230 regenerates the adsorbent 211 by adding a regeneration solution (MgCl ₂ ) to the adsorbent from which phosphorus has been desorbed, and the regenerated adsorbent 211 is recycled in the adsorption tank 210 again. To make it possible.

The phosphorus collection tank 240 is a solution containing phosphorus is introduced into it to inject CaCl ₂ to precipitate phosphorus by Calcium phosphate to recover the phosphorus so that the phosphorus can be recycled for various uses will be.

In particular, in the present invention, two embodiments of the phosphor processing unit 200 are presented.

The first embodiment is shown in Figure 2a bar, in this embodiment also comprises a suction tank 210, a stripping tank 220, the adsorbent regeneration tank 230, but is not configured in a fixed manner, the operation is selectively To make it possible. To this end, in this embodiment, the batch selection tank 250 is configured. The batch selection tank 250 is divided into

chambers

251, 252, and 253 filled with the adsorbent 211, respectively. In the collective selection tank 250, each of the

chambers

251, 252, and 253 has a treatment water inflow line 254, a removable solution inflow line 255, and a regeneration solution inflow line 256 at one side thereof. (Not shown), the treatment water outlet line 257, the citation liquid outlet line 258 is connected to the other side by a valve. In addition, although not shown in the drawing, each treatment water inflow line 254 is connected to the nitrogen treatment unit 100 to selectively remove wastewater and wastewater from which nitrogen is removed to the treatment water inflow line 254 by a valve operation. It is to be introduced into the chamber (251, 252, 253). In addition, the desorption solution may be selectively introduced into the

chambers

251, 252, and 253 by the desorption solution inlet line 255, and the

chambers

251, 252, and the like by the respective regeneration solution inlet line 256. 253) may be selectively introduced into the regeneration solution. In addition, the treated water dephosphorized by each treated water outlet line 257 can be selectively discharged from the

chambers

251, 252, 253, and each of the cited liquor outlet lines 258 is the drawn-out tank ( 240 may be connected to the solution containing the phosphorus from the chamber (251, 252, 253) by the operation of the valve to the withdrawal tank (240).

In FIG. 2A, an operation example of the present embodiment is illustrated. In the collective selection tank 250, the first chamber 251 is a suction tank 210, and the second chamber 252 is a suction tank 220. The example in which the third chamber 253 operates as the adsorbent regeneration tank 254 is shown. In the present embodiment, the treatment water inflow line 254 connected to the first chamber 251 is not shown in the drawing with the valve on, but the wastewater from which nitrogen from the nitrogen treatment tank 100 is removed is removed. Is to be introduced into the first chamber 251. In addition, the valves of the removable solution inflow line 255 and the regeneration solution inflow line 256 are turned off. In this way, the first chamber 251 operates as a suction tank 210 to adsorb phosphorus from the wastewater discharged by the internal adsorbent 211, thereby treating the treated water from which the phosphorus is removed and the valve is turned on. It is to discharge through the water supply line (257). At this time, the quotation liquid discharge line 258 is off.

Next, the detachable solution inflow line 255 connected to the second chamber 252 allows the detachable solution to flow into the second chamber 252 with the valve on. By doing so, the phosphorus filled in the second chamber 252 is desorbed from the adsorbent 211 on which the phosphorus is adsorbed. In addition, the valves of the treated water inlet line 254 and the regeneration solution inlet line 256 are turned off. By doing so, the second chamber 252 operates as a desorption tank 220 to desorb the phosphorus from the adsorbent 211 to which the phosphorus is adsorbed, and the solution containing the desorbed phosphorus is discharged into the cited liquid outlet line. Through 258 is to be discharged to the withdrawal tank (240). At this time, the treated water outlet line 257 is turned off. In this case, although not shown in the drawing, the second chamber 252 is a case in which the suction chamber 210 is operated in the previous step, and thus the adsorbent 211 is operated after the suction chamber 210 is operated. The adsorption of phosphorus is saturated to operate with the desorption tank 220 as mentioned above.

Next, the regeneration solution inlet line 256 connected to the third chamber 253 allows the regeneration solution to flow into the third chamber 253 with the valve on. In this way, the adsorbent 211 filled in the third chamber 253 and desorbed phosphorus is recyclable by the regeneration solution. In addition, the valves of the treated water inlet line 254 and the removable solution inlet line 255 are turned off. In this way, the third chamber 253 operates as the adsorbent regeneration tank 230. At this time, the treated water outlet line 257 and the cited liquid outlet line 258 are turned off. In this case, although not shown in the drawing, the third chamber 253 is a case in which the operation is performed with the desorption tank 220 in the previous step, and thus it is operated with the desorption tank 220 and the phosphorus from the adsorbent 211 After desorption is to operate as the adsorbent regeneration tank 230 as mentioned above.

As described above, according to the present embodiment, the first chamber 251, the second chamber 252, and the third chamber 253 in the batch selection tank 250 are attracted to the adsorption tank 210, the detachment tank 220, and the adsorbent. By selectively operating the regeneration tank 230 to remove the phosphorus from the waste water, wastewater without stopping the operation, in the process of removing the phosphorus desorbed from the adsorbent saturated adsorption, regenerating the adsorbent, recovering the phosphorus operation efficiency To multiply.

On the other hand, the second embodiment is shown in Figure 2b, in this embodiment also the suction tank 210, the detachment tank 220, the adsorbent regeneration tank 230 is configured, but is not configured fixedly operation To be. To this end, in the present embodiment, the outer frame 260 and the rotating tank 270 are configured.

The outer frame 260 has a circular shape in which a suction section 261, a suction section 262, and an adsorbent regeneration section 263 are formed while forming a predetermined gap. In the adsorption section 261, the treatment water inlet line 254 and the treatment water outlet line 257 are connected by a valve although the reference numeral is not shown. The desorption section 262 is connected to the desorption solution inlet line 255 and the quotient solution outflow line 258 by a valve although the reference number is not shown. In addition, the adsorbent regeneration section 263 is connected to the regeneration solution inlet line 256 by a valve although the reference number is not shown.

Meanwhile, the rotating tank 270 is configured to be rotatable at the inner circumference of the outer frame 260, and the

chambers

271, 272, and 273 filled with the adsorbent 211 are partitioned therein. Based on this configuration, the

chambers

271, 272, and 273 located in the phosphorous adsorption section 261, the adsorption and detachment section 262, and the adsorbent regeneration section 263, respectively, are rotated by the rotation of the rotary tub 270. The tank 210, the desorption tank 220, and the adsorbent regeneration tank 230 to be selectively operated. In this case, the treated water inlet line 254, the treated water outlet line 257, and the desorbed solution inlet line 255 which are respectively configured in the phosphorus adsorption section 261, the detachment section 262, and the adsorbent regeneration section 263. And the citation solution outlet line 258 and the regeneration solution inlet line 256 are not shown in the drawings of the

chambers

271, 272, and 273 in the rotary tank 270, but may be opened or closed. The

chamber

271, 272, and 273 may be selectively connected to each other so that the

chambers

271, 272, and 273 may have a treatment water inflow line 254 and a treatment water outlet line depending on their positions (actions) even when the rotary tank 270 is rotated. 257), the desorption solution inlet line 255 and the quotation solution outlet line 258, and the regeneration solution inlet line (256).

In FIG. 2B, an operation example of the present embodiment is illustrated. In the rotating tank 270, the first chamber 271 is a suction tank 210, and the second chamber 272 is a suction tank 220. 3 illustrates an example in which the third chamber 273 operates as the adsorbent regeneration tank 254. In the present embodiment, the first chamber 271 is located in the adsorption section 261 of the outer frame 260 to remove nitrogen from the nitrogen treatment tank 100 through the treatment water inlet line 254. The waste water is to be introduced into the first chamber 271. By doing so, the first chamber 271 operates as the suction tank 210 to adsorb phosphorus from the wastewater discharged by the internal adsorbent 211 to remove the treated water from the treated water outlet line ( 257) to discharge through.

Next, the second chamber 272 is positioned in the detachment section 262 of the outer frame 260 so that the detachment solution flows into the second chamber 272 through the detachment solution inflow line 255. It is. By doing so, the phosphorus filled in the second chamber 272 is desorbed from the adsorbent 211 on which the phosphorus is adsorbed. That is, the second chamber 272 operates as a desorption tank 220 to desorb the phosphorus from the adsorbent 211 to which the phosphorus is adsorbed, and the desorbed phosphorus mixed solution through the citation solution outlet line 258. It is to be discharged to the withdrawal tank (240). In this case, although not shown in the drawing, the second chamber 272 is located in the suction section 261 of the outer frame 260 in the previous step to operate the suction tank 210, After the operation of the adsorption tank 210, the adsorption of phosphorus on the adsorbent 211 is saturated, so that the rotary bath 270 rotates clockwise in the drawing to be located in the detachment section 262 of the outer frame 260. By doing so that the removal tank 220 to operate.

Next, the third chamber 273 is positioned in the adsorbent regeneration section 263 of the outer frame 260 so that the regeneration solution flows into the third chamber 273 through the regeneration solution inlet line 256. It is. By doing so, the adsorbent 211 filled in the third chamber 273 and desorbed phosphorus is recyclable by the regeneration solution. In this case, although not shown in the drawing, the third chamber 273 is a case in which the desorption tank 220 is operated in the previous step. After the removal of the rotary tank 270 is rotated in the clockwise direction in the drawing to be located in the adsorbent regeneration section 263 of the outer frame 260 to operate as the adsorbent regeneration tank 230.

As described above, in the present embodiment, the first chamber 271, the second chamber 272, and the third chamber 273 are the suction chamber 210, the detachment tank 220, and the like by the rotation of the rotating tank 270. By selectively operating the adsorbent regeneration tank 230, the phosphorus is removed from the wastewater and wastewater without stopping the operation, and the phosphorus is desorbed from the adsorbent saturated with adsorption in the process of removing the phosphorus, the adsorbent is regenerated, and the phosphorus is recovered. To double the efficiency. In addition, in the present embodiment, the suction chamber 210 and the detachment tank 220 are rotated by rotating the rotating tank 270 in which the first chamber 271, the second chamber 272, and the third chamber 273 are partitioned. By operating the adsorbent regeneration tank 230, it is possible to lower the space occupancy to promote construction economy.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims

A nitrogen treatment unit composed of an anoxic tank and an aerobic tank;

Phosphorus adsorption tank filled with adsorbent to adsorb phosphorus from influent and discharge of treated water, desorption tank for desorbing phosphorus from adsorbent adsorbed with phosphorus, adsorbent regeneration tank for desorbing adsorbent dephosphorized and A wastewater treatment apparatus for nitrogen and phosphorus removal comprising: a phosphorus treatment unit configured to include a phosphorus water tank communicating phosphorus from the influent including phosphorus.
The method of claim 1,

The waste water treatment apparatus for nitrogen and phosphorus removal, characterized in that the phosphorus adsorption tank is filled with the adsorbent of the mesoporous structure.
The method of claim 1,

Each batch chamber is divided into chambers containing adsorbents, and each chamber is connected with a treatment water inlet line, a desorption solution inlet line, and a regeneration solution inlet line on one side by a valve, and the other side of the treatment water outlet line and a citation liquid outlet line. The line is connected by a valve, each chamber is selectively operated by the adsorption tank, desorption tank, adsorbent regeneration tank, sewage, wastewater treatment apparatus for nitrogen and phosphorus removal.
The method of claim 1,

A circular outer frame constituting the adsorption section, the desorption section, the adsorbent regeneration section while forming a predetermined clearance, and the treatment water inflow line and the treatment water outlet line configured in the adsorption section, the desorption section configured in the desorption section The solution inlet line and the citation liquid outlet line, the regeneration solution inlet line configured in the adsorbent regeneration section, and the rotating tank is configured to be rotatable inside the outer frame and the adsorbent is filled therein, respectively, For the removal of nitrogen and phosphorus, the chambers respectively located in the adsorption section, the desorption section, and the adsorbent regeneration section are selectively operated by the adsorption tank, the desorption tank, and the adsorbent regeneration tank by the rotation of the rotating tank. Wastewater Treatment System.
The wastewater treatment method for nitrogen and phosphorus removal using the wastewater treatment apparatus for nitrogen and phosphorus removal of any one of Claims 1-4.