KR101898183B1 - Wastewater treatment apparatus equipped with a complex carrier and a spray water flow apparatus, and a method for removing phosphorus and nitrogen using the same - Google Patents

Abstract

The present invention relates to a composite carrier which has a simple structure and is easy to replace with a bio-filter medium, and a jet streaming device with improved aeration efficiency of air, And a method for removing phosphorus and nitrogen using the same.

Description

[0001] The present invention relates to a waste water treatment apparatus having a composite carrier and a spray water treatment apparatus, and a phosphorus / nitrogen removal method using the same,

The present invention relates to a wastewater treatment apparatus, and more particularly, to a composite wastewater treatment apparatus that simplifies the structure and facilitates fabrication and replacement of a biore ring and an injection water flow apparatus with improved aeration efficiency of air, And a method for removing phosphorus and nitrogen using the same.

One of the things that is increasing rapidly as technology develops and the living environment improves is waste. In recent years, organic wastes such as food waste and sewage sludge have been increasing, and most of these municipal wastes are preferably recycled separately from the ones that can be recycled by garbage collection. However, most of these municipal wastes are landfilled for reasons of low processing cost, The leachate generated from the organic wastes may pollute the soil as well as the groundwater and may cause the bacteria to multiply, as well as pollute the environment around the landfill due to the odor generated from the waste.

As a result, technologies for treating wastewater by separating organic wastes have been developed, for example, Patent Documents 1 to 3.

Patent Document 1 discloses a single system body having a predetermined shape and volume; A screen tank provided at an inner side of the system body corresponding to the inlet of the sewage and equipped with a screen for removing contaminants contained in wastewater at a position adjacent to the inlet, A filtration tank provided at a position adjacent to the screen tank in the system main body and provided with a filter medium therein to filter wastewater supplied from the screen tank; A flow rate regulating tank of a predetermined volume for dividing the filtrate in the system main body into a partition at a position adjacent to the filtration tank and regulating the flow rate of the wastewater flowing through the filtration tank; A microbial agent input port for injecting a microbial agent such as an effective microorganism (EM) is provided in the upper part, and an agitator rotated by a motor is installed in the upper part An anoxic tank of a predetermined volume capable of maintaining the mixing and effective contact of the sludge contained in the wastewater; A plurality of baffle chambers are provided in the inside of the baffle chamber by a multi-stage baffle plate having a predetermined interval therebetween, and in each baffle chamber, An attached microorganism reaction tank having a predetermined volume for performing intermittent aeration so that the aerobic state and the anoxic state are alternately maintained with respect to the wastewater flowing from the anoxic tank; A sedimentation tank of a predetermined volume for separating sludge or the like contained in the aeration tank treated water in the aeration tank and separated by a partition at a position adjacent to the sedimentation tank in the system body, Adsorption filter material is filled and the chromogenic material remaining in the treated water supplied from the settling tank is adsorbed Suction filtration tank with a predetermined volume going; disinfection of predetermined volume provided to a location adjacent the suction filtration tank and disinfection of the effluent to be treated from flowing into the filtration tank in the absorption body o system is to include a discharge tank,

Patent Document 2 discloses an anaerobic tank in which wastewater flows in through an inflow path; A buffer tank connected to the anaerobic tank and provided with nitrification, denitrification and ammonia removal by a contact material disposed inside, a flow rate regulator and agitator; A multistage anaerobic tank connected to the buffering aerobic tank and provided with nitrification and phosphorus by a contact material disposed inside, a flow rate regulator and a stirring means; An internal sedimentation tank connected to the multistage anaerobic digestion system, in which the organic wastes are separated by solid-liquid separation; A sludge which is connected to the internal sedimentation tank and into which organic waste precipitated by solid-liquid separation flows; And a treatment water tank which is connected to the inner sedimentation tank and into which the supernatant separated by solid-liquid separation flows, and chlorine is injected into the supernatant to be discharged to the outside,

Patent Document 3 discloses an anaerobic tank in which wastewater flows into an anaerobic tank through an inflow passage; A flow regulating tank connected to the anaerobic tank and having a raw water transfer air lift for controlling the characteristics and the inflow quantity of wastewater flowing from the anaerobic tank; A first suspending biofilm reaction tank and a second suspen- sion biofilm reaction tank in which a suspending fiber yarn in which aeration device is provided and in which microorganisms are cultured is fixed upright and a stirring device is installed at the lower end of the suspending fiber yarn; A secondary settler connected to a primary sedimentation tank connected to the first suspended biofilm reaction tank and a second suspended biofilm reaction tank, the organic waste being solid-liquid separated; An aeration tank provided with a T-shaped aeration device formed at a center thereof so that a plurality of oil-drilled tools are perforated and double-contacted filter media each having a plurality of cylinders of different diameters are vertically spaced apart from each other and oxygen is discharged from the upper portion; A sludge thickening tank connected to the secondary settling tank into which the organic waste settled by solid-liquid separation flows; And a treatment water tank connected to the second settling tank for introducing the for-treatment water separated by solid-liquid separation, introducing chlorine into the water to be treated and discharging the water to the outside through a discharge path; Wherein the T-type aeration device comprises: a water flow moving pipe; An air inlet pipe communicating with the water flow moving pipe to supply air; A first upright tubule having a plurality of first jetted oil tools formed in a predetermined region of an outer circumferential surface thereof and having an engaging portion in which a certain region of an upper edge is embedded in a downward direction; A second upright tubule receiving the first upright tubular tube and having a plurality of second tubular tubular tools formed in a predetermined region of the outer tubular surface; And an upper fixing plate installed on a second upright tube having an opened upper surface to seal the second upright tube; The aeration unit is equipped with a T-type aerator.

Various kinds of wastewater treatment technologies have been developed, and they have various apparatuses for improving the treatment efficiency of the wastewater. Among these apparatuses, there are a carrier which provides an attachment surface in order to allow microorganisms to grow and grow well, And an aeration device for allowing oxygen in the air to be dissolved into water to supply oxygen to the water.

As shown in FIG. 7, a conventional carrier includes a pierced housing having a plurality of holes formed at an upper end of a water flow moving pipe, and an air inlet pipe is installed at a lower side wall of the water flow moving pipe. The air supplied through the air supply pipe is discharged through the holes formed in the side wall of the pouch housing while being supplied to the wastewater of the water flow pipe without any resistance, There is a drawback that the waste water is not sufficiently aerated.

Conventionally, a carrier used in the prior art is simply composed of a plurality of pores formed with a plurality of pores, and in the case of a dual-pore type of the carrier thus constructed, the attachment efficiency of microorganisms is decreased. In the case of a carrier provided with a bio- It is difficult to fabricate the bio-ring and it is not easy to clean or replace the bi-ring.

Korea Patent No. 10-0519263 Korean Patent No. 10-0852208 Korean Patent No. 10-1020593

SUMMARY OF THE INVENTION The present invention has been developed in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a composite carrier which is simple in structure and easy to change a biore ring, and an injection water- And an object of the present invention is to provide a waste water and wastewater treatment apparatus having a composite carrier and an injection water flow apparatus having improved treatment efficiency and a phosphorus / nitrogen removal method using the same.

More specifically, it is required to stabilize treatment of influent of pH, impact load and refractory material, reduce the area of land by maintaining high concentration of microorganisms, reduce the amount of excess sludge due to longer microorganism retention time (SRT) In addition to promoting nitrification and phosphorus uptake by aerobic conditions at the upper part of the composite carrier, denitrification and release of phosphorus can be consecutively carried out under anoxic and anaerobic conditions, and not only water treatment but also odor removal It is an object of the present invention to provide a wastewater treatment apparatus having a composite carrier and an injection water flow apparatus, and a phosphorus / nitrogen removal method using the same.

In addition, it is possible to secure a group of dominant microorganisms by returning the solid-liquid separated activated sludge of microorganisms in the sedimentation tank to the complex reaction tank, and to continuously circulate the microorganism activated sludge during the treatment process to continuously and repeatedly circulate the inflow amount or inflow concentration The present invention also provides a waste water treatment apparatus equipped with a composite carrier and an injection water flow apparatus capable of stably coping with changes, and a nitrogen / phosphorus removal treatment method using the same.

In order to achieve the above object, according to the present invention, there is provided a sewage / wastewater treatment apparatus having a composite carrier and an injection water treatment device, comprising: at least one flow rate adjustment unit for adjusting the amount of waste water / A sludge thickening tank which slowly agitates the sludge in the concentration tank after sedimentation by using gravity for a long period of time to lower the water content of the sludge, and a composite carrier and an injection water streaming device to activate the growth of the microorganism A sedimentation tank in which organic wastes are solid-liquid separated; and a treatment water tank for introducing chlorine into the water to be treated and discharging the water to the outside through an exhaust passage, wherein the composite carrier has a microorganism adhesion function This excellent bio-filter material and the cylindrical shape are formed with a plurality of holes in the wall, and the bio-filter material is detachable inside And provided to the premises, the multi being installed detachably to the ends of the premises, characterized in that it comprises a filter media fixing plate is the bio filter material is fixed hanging.

Wherein the jet flow apparatus comprises: a water flow moving pipe through which waste water flows; An air injection pipe communicating with the lower portion of the water flow moving pipe to supply air into the water flow moving pipe; A jet flow body integrally installed at an upper end of the water flow moving pipe and having an opened upper face; An upper opening / closing plate installed at an open end of the injection water flow path and opened by a pressure of water supplied through a water flow moving pipe and air supplied by an air injection pipe; And an elevating and fixing means for fixing the upper opening and closing plate to the jetting water tank so that the upper opening and closing plate can be raised and lowered.

A protective pipe may be further provided on the outer circumferential surface of the lifting and securing means to allow the upper opening and closing plate to be smoothly lifted and to prevent corrosion of the lifting and securing means.

Holes formed at regular intervals along the spiral bones of the porous tube are preferably formed.

Preferably, a bioreactor is provided between the complex reaction tank and the settling tank, in which the untreated organic contaminants are reprocessed in the complex reaction tank.

The nitrogen / phosphorus removal method using the waste water treatment apparatus having the composite carrier and the spray water treatment apparatus uses the apparatus configured as described above, wherein a) the waste water / wastewater flowing through the inflow pipe is separated from the flotation chamber 1 An inflow step in which the flocculent substances including oil components contained in the organic waste are retained in the flow control tank 1 and the lower and wastewater excluding the oil components are introduced into the flow control tank 2;

b) stirring step of operating an air diffuser by means of an agitator to homogenize the properties of the incoming wastewater flowing through the flow rate control tank and preventing precipitation of solids;

c) The inflow volume of the wastewater transferred from the lower part of the flow control tank 2 to the raw water transfer air lift is controlled by the flow channel of the flow distribution tank, and a part of the wastewater is transferred to the complex reaction tank 1 room through the transfer pipe. A flow regulating step of regulating the flow rate so that the wastewater is bypassed to the two flow regulating tanks;

d) a primary purification step in which an organic matter of the waste water / wastewater flowing into the combined reaction tank 1 and the combined reaction tank 2 reacts with microorganisms attached to the composite carrier to remove nitrification, denitrification, and ammonia;

e) a secondary purification step in which the bottom / wastewater that has absorbed oxygen by the jet streamer contacts with the composite carrier to oxidize the organic matter and cause simultaneous nitrification-denitrification reaction;

f) a tertiary purification step of treating nitrogen and phosphorus by reacting the organic matter of the waste water and wastewater introduced into the complex reaction tank 1 and the complex reaction tank 2, and reacting with the microorganisms attached to the composite carrier, thereby nitrification and phosphorus ingestion;

g) An internal transporting step in which the untreated organic pollutants in the combined reaction tank 1 and the combined reaction tank 2 are reprocessed in the bioreactor and transported to the single reaction tank by the internal transport air lift for the nitrification of the microorganism- ;

h) a sedimentation step in which untreated organic pollutants in the waste water after completion of the third purification step are reprocessed in the bioreactor and the active and waste water containing microorganisms are separated from the sedimentation tank by solid-liquid separation;

i) withdrawing some of the activated wastewater precipitated by the solid-liquid separation in the settling tank into the sludge concentration tank through the airlift, storing it for a certain period of time, and finally treating the sludge to final treatment;

j) disinfecting and discharging the treated water separated by solid-liquid separation in a settling tank into a treated water tank, disinfecting the treated water with a disinfecting device and discharging the treated water to the outside through an outflow pipe; And a control unit.

The apparatus for treating wastewater and wastewater according to the present invention and the method for removing nitrogen and phosphorus using the same according to the present invention are characterized in that a single reaction tank has a function of adhering microorganisms inside a porous tube having holes formed at regular intervals along spiral bones The biore ring is filled with a composite carrier, and the wastewater is transferred from the lower part of the complex carrier to the upper part by the injection water flow device, and the upper part is composed of anoxic zone and the lower part is composed of SNDN (simultaneous nitrification- denitrification) And the aerobic and anaerobic conditions of the biofilm are maintained by growing the aerobic and anaerobic microorganisms by increasing the amount of microorganisms attached to the complex carrier. In this process, the biofilm is diffused from the outside to the inside by the concentration gradient of the biofilm Nitrogen is removed by the reduction of nitrate nitrogen, and in the anaerobic biofilm, It is possible to efficiently and economically remove nitrogen and phosphorus by repeating the process in which phosphorus is over-consumed by the aerobic microorganism while being transferred to the existing reservoir and the wastewater is aerated by the spray water flow apparatus, It is possible to improve the purification efficiency of the treated water.

In addition, since the structure of the complex carrier is simple and easy to manufacture, the present invention facilitates the cleaning and replacement of the bio-rings installed in the porous perforated pipe, thereby facilitating the management of the bio-rings, It is possible to improve the efficiency of the microorganism propagating by the carrier by improving the efficiency of the wastewater treatment.

Further, the present invention can increase the number of aerobic bacteria and microorganisms by more effectively aerating the air by the spray water system, and can more effectively activate the organic matter, thereby enhancing the effect of treating the wastewater.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of a waste water treatment apparatus having a composite carrier and an injection water treatment apparatus according to the present invention
Fig. 2 is a plan view of a bottom and wastewater treatment apparatus having a composite carrier and an injection water flow apparatus according to the present invention
3 is a side view of the composite carrier provided in the waste water treatment apparatus according to the present invention
Fig. 4 is an enlarged view of a portion A in Fig. 3
5 is a side cross-sectional view of the spray water flow apparatus installed in the waste water treatment apparatus according to the present invention
Fig. 6 is an enlarged view of part B of Fig. 5
7 is a side view of an example of a conventional aeration device

The present invention is capable of various modifications and various embodiments, and specific embodiments will be illustrated in the drawings and described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

INDUSTRIAL APPLICABILITY The present invention facilitates the management of emulsions and improves the aeration efficiency, thereby improving the treatment efficiency of the wastewater.

As shown in FIGS. 1 and 2, the lower and wastewater treatment apparatuses including the complex carrier and the spray water flow apparatus according to the present invention adjust the amount of the wastewater flowing into the rear end through the inflow pipe 110 A sludge concentration tank 300 for slowly stirring the sludge and precipitating the sludge for a long period of time by using gravity to lower the water content of the sludge and the sludge concentration tank 300 for mixing the complex carrier 410 and the spray water flow apparatus 420) for decomposing organic wastes by activating the growth of microorganisms, a sedimentation tank (700) for solid-liquid separation of organic wastes, chlorine is introduced into the water to be treated, And discharging the water to the outside through the processing bath.

This treatment tank is similar to that provided in a conventional wastewater treatment apparatus, but the treatment means provided in each tank are as follows.

As shown in FIG. 1, two or more of the flow control tank and the combined reaction tank are continuously installed, thereby improving the flow control effect and the waste decomposition effect.

The inflow pipe 110 provided in the flow rate control tank 1 chamber 100 is connected to the inside of the flow rate control tank 1 chamber 100 through the inflow pipe 110, Is preferably formed in such a manner that the flow of the lower and wastewater of the lower wastewater is inhibited and the odor generated during the treatment of the wastewater is prevented from leaking to the outside and the lower end is positioned lower than the water surface .

In addition, the inflow pipe 110 may further include a check valve that is opened and closed only in one direction to prevent inflow / outflow of waste water / wastewater and leakage of odor.

The flow control tank 1 is a space in which organic substances including oil components contained in the organic waste are retained by floatation separation, and the bottom and wastewater flows into the flow control tank 2 (200).

The flow rate adjusting tank 2 chamber 200 is connected to the flow rate adjusting tank 1 chamber 100 and includes a raw water transfer air lift 230 for controlling the constriction and inflow amount of the wastewater flowing into the flow rate adjusting tank 1 chamber 100 .

The aeration device 210 is provided in the flow rate control tank 200 as an agitating device for homogenizing the inflow and wastewater to be introduced

The flow rate adjusting tank 2 chamber 200 is connected to the flow rate adjusting tank 1 chamber 100 and includes a raw water transfer air lift 220 for controlling the constants and the inflow amount of the wastewater flowing from the flow rate adjusting tank 1 chamber 100 .

In order to homogenize the properties of the inflow and wastewater and prevent precipitation of solid matter, aeration device 210 is provided in the flow rate control tank 2 chamber 200 and a raw water transfer air lift A predetermined amount of waste water / wastewater is supplied to the combined tank 1 through the first transfer pipe 240 in the flow distributing tank 230, which can control the inflow amount of the waste water / 400, and a part thereof is bypassed to the flow rate control tank 200 through the louver groove 231 to adjust the flow rate.

The sludge thickening tank 300 has a function of slowly stirring the sludge and precipitating it for a long time using gravity to lower the water content of the sludge. The sludge concentration tank 300 is connected to the sedimentation tank 700 and includes a part of activated sludge Respectively.

On the other hand, in order to prevent microbial nutrification, it is preferable that the excess sludge of the sludge thickener tank 300 is transferred to the flow rate control tank 2 room 200. For this purpose, The concentrating tank may be provided with a symbol water conveying pipe 310.

A fourth transfer pipe 611 connected to the complex reactor 1 chamber 400 is installed in the bioreactor 600 so that the activated sludge is internally transported for nitrification. 700) to the sludge thickener tank (300) is installed in the fifth transfer pipe (711).

Accordingly, the waste water treatment apparatus 1 equipped with the composite carrier can control excess sludge unnecessarily and can prevent the microbial nutrition due to the interruption of inflow of waste water and wastewater. Therefore, · Wastewater can be purified.

The bioreactor 411 and the pore tube 412 in which the microorganisms are cultured are installed in the single reaction chamber 400 and the combined reaction chamber 2 500. The bioreactor 411, The composite carrier 410 is provided with a spray water streaming device 420 for spraying the wastewater in the upward direction at the center of the composite carrier 410.

As shown in FIG. 3, the composite carrier 410 includes a bio-filtering material 411 having excellent microorganism-adhering function, and a plurality of holes formed in a wall thereof. The bio-filtering material 410 is removably installed inside And a porous material fixing plate 413 detachably attached to both ends of the porous pipe and to which the bio-filtering material is caught and fixed.

As shown in FIG. 1, the composite carrier 410 is installed vertically in the composite reaction tank. The bio-filtering material 411 is processed by AIR PROCESS to treat the special polypropylene pylene, Thereby improving the ability to easily adsorb microorganisms.

In addition, the bio-filter material 411 is colorless, odorless, and non-toxic when burned, and the inner wick is formed into a honeycomb shape, so that the surplus generation amount can be significantly reduced due to active microbial activity and activity. In addition, the double pipe method of the cylindrical pipe type enables the oxygen supply to be smooth and the anaerobic arbitrary aerobic microorganism can be easily decomposed and extinguished, and the oxygen supply is smooth due to the physicochemical stability and the increase of the air permeability, It is possible to form optimal conditions for microbial production without the phenomenon of bulging and aerobic oxidation and anaerobic digestion can be simultaneously performed due to the symbiosis of aerobic, random and anaerobic bacteria, so that the amount of surplus can be reduced.

Also, it is preferable that the bio filter medium 411 has a long band shape, and the inside of the porous filter tube is sufficiently filled with the bio filter media by winding the filter media between the filter media fixing plates 413 a plurality of times.

In addition, the F / M ratio can be kept low due to the large amount of microorganisms adhering to the organic pollutants in the incoming wastewater. Thus, the load fluctuation of the inflow and wastewater and the treatment efficiency in the winter are high, Since the surface area is large, the treatment effect can be obtained even with a small capacity.

The perforated pipe 412 is made of a spiral polyethylene pipe. The material is made of an ethylene polymer by extrusion molding. In order to improve the weatherability, carbon black having an average particle diameter of 0.003 μm or less is mixed with 2 to 3% And uniformly dispersed.

The perforated pipe has a structure in which the body of the pipe tube is not an adhesive connection type but an integral spiral shape, and a narrow rectangular long groove is formed in a square shape with a right angle of a tube axis. The holes shall be perforated. The inner and outer surfaces shall be free of defects such as harmful flaws, cracks, twists and bubbles.

Also, as shown in FIG. 4, a hole 414 formed in the net formed in the perforated pipe serves to smoothly introduce foreign substances into the inside of the pipe.

The filter medium fixing plate 413 functions to fix the bio filter medium to the inside of the porous tube and is detachably attached to both ends of the porous tube. Preferably, grooves or holes are formed at the ends of the porous tube, When the separating plate is detached, the retaining pawl of the end portion of the fixing plate is fixed by inserting it into the groove or the hole. By deforming the porous pipe using the elasticity of the porous pipe, the diameters of the opposite ends of the filter fixing plate are increased, Can be separated.

As shown in Fig. 5, the jet watercraft 420 is a means for supplying air to the wastewater, and includes a water flow moving pipe 421 through which the wastewater flows; An air inlet pipe (422) communicating with the lower portion of the water flow moving pipe to supply air into the water flow moving pipe; A jet flow body 423 integrally installed at the upper end of the water flow moving pipe and having an opened upper face; A top opening / closing plate (424) installed at an open end of the injection water flow path and opened by the pressure of water supplied through the water flow moving pipe and the air supplied by the air injection pipe; And a lifting and securing means (425) for fixing the upper opening and closing plate to the jetting water tank so that the upper opening and closing plate can be lifted and lowered.

When the pneumatic and hydraulic pressures are applied to the upper open / close plate in the process of injecting the air through the air inlet pipe into the wastewater flowing through the water flow moving pipe, the upper open / close plate floats, And the bottom / wastewater aeration arose in the separated gap, and flows into the inside of the tank.

At this time, the lower / wastewater that stuck in the air hits the upper opening / closing plate, so that the air is more aerated to the lower and wastewater. Of course, when the pressure of the lower and the wastewater is low, the upper opening and closing plate is not separated from the jet water flow, so that the lower and wastewater can not flow into the bath.

That is, the vertically raised treated water hits the upper open / close plate 424 and moves horizontally. Through this process, the air supplied through the air inlet pipe 423 dissolves in water, and the upper open / 424 to divide the surface area of the dissolved oxygen into a small size, the jet water stream 421 is formed and oxygen absorption can be smoothly performed.

The length of the lifting and securing means 425 should be 10 mm or more. On the outer circumferential surface, the lifting and lowering means should be smoothly lifted and lowered to prevent corrosion of the lifting / 426) is further preferably provided (see Fig. 6)

As shown in FIGS. 1 and 2, the spray water drier 420 configured as described above is provided in the composite reaction chamber 1 chamber 400 and the complex reaction chamber 2 chamber 500, And the organic wastewater is injected upward in the upward direction to minimize the flow of the microorganisms cultured in the bioreactor 411 and the porous tube 412, thereby improving the microbial biofilm formation rate.

The combined reaction chamber 1 chamber 400 and the complex reaction chamber 2 chamber 500 are aerated from above through the injection water flow device 420 so that the combined reaction chamber 1 chamber 400 and the complex reaction chamber 2 chamber 500 Since the oxygen is not transferred well in the lower part, an aerobic reaction occurs in the upper part and an anoxic zone in which the anaerobic reaction occurs, and SNdN (simultaneous nitrification-denitrification) reaction occurs.

The water treatment processes occurring in the above-mentioned one reaction chamber and two reaction chamber are as follows.

When the wastewater is introduced into the lower part of the first reaction chamber and the lower part of the second reaction chamber, as shown below, the phosphorus spider organism produces energy to consume the carbon source. The energy is converted into PO ₄ -P by hydrolyzing Poly- In this process, energy is released and the carbon source is used as energy.

The carbon source used is the anaerobic condition, which means that PHB can not be degraded because it is not oxygen-free. Once PHB is stored and the cell is synthesized under aerobic conditions in the reactor, the poly-P bacteria will multiply.

At this time, a part of PHB is converted into acetyl-CoA to generate ATP by circulating TCA cycle, and it is considered that some PHB is converted into energy. The energy ATP thus produced is again used to synthesize Poly-P, where the overproduction of the most important phosphorus occurs. At this time, phosphorus in water is removed by ingesting microorganisms.

Nitrification-denitrification process

- In the existing reactor of BRDP reactor

2NH ₄ ⁺ + 3O ₂ ? 2NO ₂ ^- + 2H ₂ O + 4H ⁺

        Nitrosomonas

^{_{2NO 2 - + O 2 → 2NO}} 3 -

        Nitrobactor

2NH ₄ ⁺ + 4O ₂ ? 2NO ₃ ^- + 2H ₂ O + 4H ⁺

Nitrosomonas, which is an ammonia oxidizing bacteria, converts nitrite to nitrite by converting nitrite to nitrate by Nitrobactor, which is nitrite oxidizing bacteria, and nitrate is converted into nitrate ion by using oxygen in water as in the above formula. The ion again becomes a nitrite ion, which changes to a nitrogen form.

The reason why such denitrification occurs under anaerobic conditions is that Pseudomonas and Bacillus are typical microorganisms involved in denitrification, and the microorganisms use oxygen contained in nitrate ion and nitrite ion when oxygen is insufficient.

Removal of nitrogen by the adhered growth nitrification-denitrification effect in a wastewater treatment plant equipped with a complex carrier has high potential for treatment, high stability and reliability of the process because microorganisms are attached to the filter media, and easy operation of the process , The area required for site is small, and the maintenance cost is economical.

The bioreactor 411 and the pore tube 412 are taken in by the microorganisms formed in the composite carrier 410 in which the bioreactor 411 and the pore tube 412 are fixed upright in the complex reaction chamber 1 room 400 and the complex reaction chamber 2 room 500, The microorganisms that have been consumed are desorbed from the bioreactor, and the desorbed sludge is transferred to the sludge concentration tank 300 to remove the phosphorus.

The spray water flow apparatus 420 is preferably painted with an eco-friendly paint so as to prevent contamination that may occur when the water is contacted with the water to be treated as much as possible.

The sedimentation tank 700 has a function of precipitating activated sludge by solid-liquid separation. Part of the activated sludge precipitated therein is drawn into the sludge concentration tank 300 through the air lift 710, stored for a predetermined period, The treated water separated by the solid-liquid separation in the sedimentation tank 700 flows into the treatment water tank 800, and the treated water is sterilized by the sterilization apparatus 810 and discharged to the outside through the outflow pipe 820.

Further, the apparatus of the present invention may further include a bioreactor (600) for reprocessing organic pollutants not treated in the complex reaction tank between the complex reaction tank and the settling tank.

The nitrogen / phosphorus removal treatment method using the bottom / wastewater treatment apparatus provided with the composite carrier and the spray water flow apparatus according to the present invention is characterized in that it comprises the steps of inflow and wastewater inflow step, stirring step, flow control step, first purification step, A tertiary purification step, an internal transportation step, a precipitation step, a sludge concentration step, a disinfection and discharge step.

In the inflow and inflow step, the inflow / outflow water flowing through the inflow pipe is floated in the flow control tank 1, and the floating fluid including oil components contained in the organic waste is stored in the flow control tank 1 room. · Wastewater flows into 2 chambers of the flow control tank.

In the stirring step, the air diffuser is operated with an agitator to homogenize the properties of the inflow and wastewater flowing through the one flow rate control tank, and to prevent precipitation of solids.

In the flow rate control step, the inflow amount of the lower and the wastewater transferred from the lower part of the flow control tank 2 to the raw water transfer air lift is controlled by the flow channel of the flow distribution tank, and a part of the lower wastewater is transferred to the multi- Some of the waste water and wastewater are controlled to be bypassed to the two flow control tanks.

In the first purification step, the organic matters of the wastewater and the microorganisms adhered to the composite carrier react with each other to remove nitrification, denitrification, and ammonia from the first and second compartments, respectively. In the second purification stage, The bottom / wastewater which absorbs oxygen by the water flow device contacts with the complex carrier and the organic matter is oxidized and simultaneous nitrification-denitrification reaction occurs.

In the tertiaryization stage, the organic matters of the waste water and the wastewater introduced into the complex reaction tank 1 and the complex reaction tank 2 are reacted with the microorganisms attached to the complex carrier to treat nitrogen and phosphorus, The untreated organic pollutants in the two reaction chambers are reprocessed in the bioreactor and transported to the single reaction chamber by using the internal transport air lift for the nitrification of the microorganism-containing activity.

In the precipitation step, untreated organic pollutants in the bottom and wastewater after the third purification step are reprocessed in the bioreactor, and active and wastewater containing microorganisms are separated from the precipitation tank by solid-liquid separation. In the sludge concentration step, · Some of the activated wastewater precipitated by the liquid separation is withdrawn into the sludge concentration tank through the air lift, stored for a certain period and finally treated. After the treatment water separated by the solid-liquid separation in the settling tank is introduced into the treatment water tank, And disinfecting and discharging the waste water to the outside through an outflow pipe to complete the treatment of the waste water and wastewater.

In the present invention as described above, the treated wastewater is struck to the uppermost open / close plate 424 of the spray water flow apparatus 420 using the upward flow, and then flows into the composite carrier 410 through the porous pipe 412 And the lower part is composed of the anoxic zone, so that the simultaneous nitrification-denitrification (SNdN) reaction can be performed, and the nitrogen and phosphorus removal can be efficiently and economically treated, so that the rectification efficiency Can be improved.

Further, the organic activated sludge separated by solid-liquid separation in the sedimentation tank 700 can be transferred to the sludge concentration tank 300 to secure a group of dominant microorganisms, and the organically activated sludge is conveyed during the treatment process, It is possible to stably cope with the change of the inflow amount or the inflow concentration of the wastewater. Therefore, it is possible to prevent the malnutrition of the microorganisms due to the interruption of the inflow of wastewater.

100: flow rate adjusting chamber 1 room 110: inlet pipe
200: 2 flow control tanks
210: air diffuser 211: air inlet tube
220: Raw feed air lift
230: Flow distributing tank 231:
240: 1st conveying pipe
300: sludge thickener
310: symbol transfer pipe
400: Complex reactor 1 room
410: Complex carrier 411: Bio-filter media
412: Perforated pipe 413: Filter fixing plate
414: hole
420: jet water flow device 421: water flow pipe
422: air inlet tube 423: jet flow chamber
424: upper fixing plate 425:
426:
430: Second conveying pipe
500: complex reaction tank 2 room 510: third conveyance pipe
600: Bioreactor
610: inner conveying air leaf 611: fourth conveying pipe
700: settling tank
710: Sludge conveying air lift 711: Fifth conveying pipe
720: Sedimentation tank inlet pipe
730: Rectifier
740: Weir (WEIR)
800: Treatment tank
810: Disinfection equipment
820: Outflow tube
900: Blower
910: Air supply line
920: Electric control panel
930: Machine room
940: air branch tube

Claims (6)

A sludge concentration tank for slowly mixing the sludge and then precipitating for a long time using gravity for reducing the water content of the sludge; The present invention relates to a process for separating organic wastes from organic wastes, comprising the steps of: introducing chlorine into the water to be treated and discharging the wastewater to the outside through an exhaust line; 1. A wastewater treatment apparatus comprising a water tank,
The composite carrier includes a biocompatible material having excellent microorganism-adhering function, a pore tube having a cylindrical shape and having a plurality of pores formed in a wall thereof, and a detachable bio-filter material installed therein, And a filter material fixing plate to which the bio filter material is fixed by being fixed,
Wherein the jet flow apparatus comprises: a water flow moving pipe through which waste water flows; An air injection pipe communicating with the lower portion of the water flow moving pipe to supply air into the water flow moving pipe; A jet flow body integrally installed at an upper end of the water flow moving pipe and having an opened upper face; An upper opening / closing plate installed at an open end of the injection water flow path and opened by a pressure of water supplied through a water flow moving pipe and air supplied by an air injection pipe; And an ascending and descending fixing means for fixing the upper opening and closing plate to the jetting water tank so that the upper opening and closing plate can be raised and lowered. delete The method according to claim 1,
And a protection pipe is further provided on the outer circumferential surface of the elevating and fixing means so that the upper opening and closing plate can be smoothly lifted and prevented from corrosion of the elevating and fixing means. The method according to claim 1,
And a net is further provided in the hole formed in the porous tube. The method according to claim 1,
Further comprising a bioreactor disposed between the complex reaction tank and the precipitation tank, wherein the bioreactor reprocesses the untreated organic contaminants in the complex reaction tank. A nitrogen-phosphorus removal method using a waste water treatment apparatus having a composite carrier and an injection water flow apparatus according to any one of claims 1 to 5,
a) Floating and wastewater flowing through the inflow pipe is floated in the flow control tank 1. Floating substances including oil components contained in the organic wastes are suspended in the flow control tank 1, An inflow step of inflow into the two chambers;
b) stirring step of operating an air diffuser by means of an agitator to homogenize the properties of the incoming wastewater flowing through the flow rate control tank and preventing precipitation of solids;
c) The inflow volume of the wastewater transferred from the lower part of the flow control tank 2 to the raw water transfer air lift is controlled by the flow channel of the flow distribution tank, and a part of the wastewater is transferred to the complex reaction tank 1 room through the transfer pipe. A flow regulating step of regulating the flow rate so that the wastewater is bypassed to the two flow regulating tanks;
d) a primary purification step in which an organic matter of the waste water / wastewater flowing into the combined reaction tank 1 and the combined reaction tank 2 reacts with microorganisms attached to the composite carrier to remove nitrification, denitrification, and ammonia;
e) a secondary purification step in which the bottom / wastewater that has absorbed oxygen by the jet streamer contacts with the composite carrier to oxidize the organic matter and cause simultaneous nitrification-denitrification reaction;
f) a tertiary purification step of treating nitrogen and phosphorus by reacting the organic matter of the waste water and wastewater introduced into the complex reaction tank 1 and the complex reaction tank 2, and reacting with the microorganisms attached to the composite carrier, thereby nitrification and phosphorus ingestion;
g) An internal transporting step in which the untreated organic pollutants in the combined reaction tank 1 and the combined reaction tank 2 are reprocessed in the bioreactor and transported to the single reaction tank by the internal transport air lift for the nitrification of the microorganism- ;
h) a sedimentation step in which untreated organic pollutants in the waste water after completion of the third purification step are reprocessed in the bioreactor and the active and waste water containing microorganisms are separated from the sedimentation tank by solid-liquid separation;
i) withdrawing some of the activated wastewater precipitated by the solid-liquid separation in the settling tank into the sludge concentration tank through the airlift, storing it for a certain period of time, and finally treating the sludge to final treatment;
j) disinfecting and discharging the treated water separated by solid-liquid separation in a settling tank into a treated water tank, disinfecting the treated water with a disinfecting device and discharging the treated water to the outside through an outflow pipe; And removing the phosphorus and nitrogen from the waste water by using the waste water treatment apparatus.

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