KR101177560B1 - Slope Plate with contact bacillus biofilm perfect process - Google Patents

Abstract

The present application is to treat the wastewater containing organic matter, nitrogen (N) and phosphorus (P) by predominantly Bacillus bacteria among the sewage, wastewater treatment method used for sewage, manure, livestock manure, various organic industrial wastewater treatment For wastewater treatment methods.

In the present application, the biofilm media has a thickness in the range of 0.5 to 1.0 cm, and the biofilm having a porosity of 90% or more forms an inclination angle in the range of 30 to 60 degrees. To provide advanced processing technology using the law.

In the conventional Bacillus method, as the amount of conveying is usually returned to 300-700% to maintain microorganisms in the reaction tank, the capacity of each reaction vessel is increased, thus the residence time is increased, the required power is increased, and thus the maintenance cost is high and the utility facility cost is increased. As the high concentration of adhesion of the inclined plate contact microorganism increases, the area of the site is reduced to about 1/2 compared to the existing Bacillus method, and the amount of sludge generated can be significantly reduced, resulting in lower utility cost. The present invention aims to provide a wastewater treatment method according to a slope plate with contact bacillus biofilm perfect process (hereinafter abbreviated as 'SPCB method').

Wastewater treatment method, Bacillus bacteria, biofilm method, gradient plate, SPCB method

Description

Slope Plate with contact bacillus biofilm perfect process

The present application predominates Bacillus bacteria among the sewage and wastewater treatment methods used for sewage, manure, livestock manure, and various organic industrial wastewater treatment, and highly treats organic matter, wastewater containing nitrogen (N) and phosphorus (P), and wastewater. However, the present invention relates to a wastewater treatment method for effectively removing nitrite and nitrate nitrogen and color.

In the present application, the biofilm media has a thickness in the range of 0.5 to 1.0 cm, and the biofilm having a porosity of 90% or more forms an inclination angle of 30 to 60 degrees in the Bacillus reactor. The present invention relates to an advanced treatment method for wastewater and wastewater using a hard acid contact Bacillus biofilm method.

Nitrogen and phosphorus, which are the causes of red and green algae, have flowed into rivers and lakes, and more than half of the water supply is already eutrophicated or quantified.

The conventional method used in the conventional water treatment apparatus and method was the activated sludge method, but the activated sludge method is nutrients such as nitrogen and phosphorus having low removal efficiency, so that it is processed without advanced treatment, resulting in severe eutrophication by the treated water. As a result, a large amount of dilution required, such as excessive facility cost and skill in treating technology.

In addition, the B3 method, which is a method of selectively incubating Bacillus bacteria for the purpose of removing organic matter, nitrogen, and phosphorus, predominantly sporifying them, has advantages such as good sludge sedimentation and no bulking phenomenon. There are problems such as the need for a site, high construction cost and operation maintenance cost, and complicated process.

In Korea, which has become a global warming problem and lack of drinking water source, it is time to clean up even the high concentration of wastewater by treating total nitrogen (N) and total phosphorus (P) which are the main culprit of water pollution, and it is time to use it as industrial or living water. have.

In addition, the nitrogen and phosphorus emission limit standards applied since January 1, 1999 are as follows.

                                                            (Unit / l)

division nitrogen sign Manure Treatment Plant 60 8 Livestock Wastewater Treatment Plant 60 8

The present invention is a method used in sewage treatment, livestock waste, food wastewater, and various industrial organic wastewater treatment. Due to the high concentration of contact microorganisms, the waste land treatment system reduces the required area by about one-half and reduces the amount of sludge produced by the existing Bacillus method. Currently Bacillus method is used to maintain the microorganisms in the reactor. As the sludge conveying amount is usually 300-700%, a large amount of the sludge is returned, thus increasing the capacity of each reactor, thus increasing the residence time and the required power, and thus the maintenance cost is high and the facility cost is also high.

B3 method (Bio-Best-Bacillus System) of Patent No. 0151928 as a representative method for highly treating organic sewage, sewage, and wastewater containing organic matter, nitrogen (N), and phosphorus (P) by dominant Bacillus bacteria in organic wastewater treatment. Is known.

The B3 method is a method for treating wastewater using Bacillus, which not only has excellent organic wastewater treatment but also has a good effect on the removal of nitrogen and phosphorus. As the target of removal is ammonia nitrogen, it is difficult to treat nitrite nitrogen and nitrate nitrogen.B3 process proceeds to prevent nitrification of ammonia nitrogen by using concentrated aeration and reduced aeration. Many problems have been exposed to the effective removal of nitrite and nitrate nitrogen present in or generated during the process. Patent No. 0555570 has been disclosed to improve the problem. Wastewater treatment method with reaction tank and sedimentation tank to treat influent by dominant control The same is true, but in the technique of heading 04.55570, the conditions for maintaining the first chamber of the reactor in anoxic conditions are different, and the second chamber after the first chamber has a step of intensive aeration, and the remaining chamber has a step of performing attenuating attenuation. A method of treating sewage and wastewater, including the step of returning a predetermined amount of sludge from the final chamber of the reaction tank to the first chamber, having a point, is returned to the first chamber.

However, the treatment method disclosed above achieves a technology structure by suspending growth microorganism growth method, whereas the present application technology uses an inclined plate contact medium for the advanced treatment of wastewater and wastewater (ATTACHED GROWTH). Means for using a microbial growth method, a method for attaching / integrating a biofilm medium having a thickness of 0.5 to 1.0 cm in a Bacillus reaction tank and having a tilt angle of 30 to 60 degrees to a biofilm having a void of 90% or more. The invention was completed by confirming satisfactory experimental results to maintain the MLSS concentration of Bacillus range 30,000 ~ 90,000 / l range.

That is, in the case of the conventional Bacillus reaction tank using the suspended growth formula is an average MLSS concentration of 3,000 ~ 9,000 / l, when applying the gradient plate contact Bacillus biofilm method of the present application it can be confirmed that the MLSS concentration can be increased to 30,000 ~ 50,000 / l Could.

Therefore, in the case of applying the technical idea of the present application, in the sewage treatment system using the standard activated sludge method, only Bacillus bacteria are selectively cultured and dominated in aeration tanks and nitrifiers that treat sludges generated from sewage and wastewater. If the odor in the pretreatment process, that is, screen sedimentation tank and sewage tank sedimentation tank, is collected through a suction fan or a suction pipe and introduced into the aerobic Bacillus reaction tank, the first room is ingested by a high concentration of Bacillus bacteria without a separate odor removal facility. Decomposition and dissolution can remove odor, and also it can remove nitrogen and phosphorus in waste water up to 80 ~ 90%, minimize sludge generation and excellent dewatering efficiency of sludge. The dehydration effect is excellent even without A case that is required, based on the waste water treatment method for reducing the site area as a conventional one-half of the facility.

The present invention is a structure that improves the problems of the conventional Bacillus treatment process in the sewage, manure, livestock manure, various organic industrial wastewater treatment method, and has a thickness of 0.5 ~ 1.0㎝ in the Bacillus reaction tank, 90% It is an object of the present invention to provide an advanced processing technology using the inclined plate contact Bacillus biofilm method of providing a hard plate contact Bacillus biofilm so that the biofilm having the above voids has an inclination angle in the range of 30 to 60 degrees.

The present Bacillus method in the conventional Bacillus method for the maintenance of microorganisms in the reaction tank as the return amount is usually 300 ~ 700% as a large amount of each reaction tank capacity is increased, thus the residence time is increased, the required power is increased and the maintenance cost is high As the invention started with the problem to solve the problem of high utility cost, the present application has a hard acid plate contacting Bacillus biofilm in the Bacillus reaction tank, and according to the high concentration adhesion growth of the inclined plate contact microorganism, the required area of the area is about 1/2 of the conventional Bacillus method. As a result, the amount of sludge generated is significantly reduced, and as a result, the slope plate with contact bacillus biofilm perfect process is used as a wastewater treatment method with a low utility cost and easy maintenance. Called 'SPCB method' High calling).

SPCB method provided herein is characterized by controlling the concentration of microorganisms in the Bacillus reaction tank and the inclined plate contact biofilm tank, the Bacillus reaction tank is preferably installed in at least four chambers, each reactor is to be provided with a gradient plate biofilm, In order to supply oxygen to the high concentration MLSS (30,000 ~ 90,000 / l) Bacillus bacteria in the inclined plate contact material media, the Bacillus bacteria were preferentially cultured by giving up tapering in the Bacillus reactor in order to utilize the spores characteristic of Bacillus bacteria. The present invention was completed by confirming that it is possible to process nitrogen, phosphorus, and of course highly concentrated organic wastewater of sewage, livestock manure or industrial wastewater.

In the SPCB method of the present invention, the microbial concentration MLSS is characterized by a high concentration of adhesive growth by means of adhesion growth propagation means of the inclined plate contact biofilm method. Therefore, it is difficult to control and maintain the microbial concentration at 2,500 ~ 5,000 / l, so that the large return rate in the circulation tank and the settling tank to maintain the large capacity of each BACILLUS reaction tank naturally and also solve the problem of large loss of power costs.

Since the SPCB method of the present application uses the inclined plate contact biofilm, the microbial concentration can be increased to 30,000 to 90,000 / l based on the inclined plate contact biofilm, and thus, in actual design, the size of the Bacillus reactor can be reduced by 1/2 compared to the conventional method. The existing method of using Bacillus culture as a suspended growth method is to return 100% to 300% of internal circulation in the Bacillus reactor (aeration tank) and 100% to 300% of the maximum sludge circulation in the settling tank. As a result, the economic loss, the large capacity of the Bacillus reactor and the waste of power had to be increased.

The SPCB method of the present application changes any load of organic matter as the bacterium bacterium grown in the Bacillus reactor by using the gradient plate biofilm method increases almost 10 times more than the conventional bacillus bacterium using floating bacteria. In addition, it is possible to stably process nitrogen and phosphorus by stable Bacillus bacteria, which can be dominantly cultured, and can reduce maintenance costs.

In the SPCB method of the present application, the odorous substances generated in the wastewater treatment plant can be ingested / removed by the high concentration and growth of Bacillus bacteria, thereby providing a wastewater treatment facility that does not smell or smell. Because of its sporeing properties, it is possible to operate normally even after standing for a long time without additional planting. Nitrogen, phosphorus removal and advanced treatment technology as well as organic matter in wastewater and wastewater remove the same amount of treatment compared to the conventional method using Bacillus bacteria. The invention was completed by confirming that stable maintenance can be achieved while reducing the required area by about 1/2.

Therefore, the present invention has a Bacillus reaction tank divided into a plurality of yarns and a sedimentation tank for accommodating the effluent through the Bacillus reaction tank, and in the wastewater treatment method for treating the influent by predominantly Bacillus bacteria, inclined plate contact to the Bacillus reaction tank The biofilm media is attached / embedded to maintain the MLSS concentration of Bacillus bacteria 30,000-90,000 / l and to maintain the high concentration of MLSS concentration using the inclined plate contact Bacillus biofilm to enable the selection of the Bacillus advantage. In the wastewater treatment method, the Bacillus reaction tank may be provided in a structure having a first chamber to a fourth chamber with four division chambers, and each division chamber may be aerated to form dissolved oxygen in the range of 0.1-1 mg / l. Biofilm media attached to the Bacillus reaction tank has a thickness of 0.5 ~ 1.0 ㎝, 90% When the biofilm having the above pores is used, for example, using the biofilm media of the present application and operating for about 20 days, the microbial adhesion state is provided to have a specific surface area of 7,200 to 14,500 m 2 / m 3.

In addition, in the Bacillus reaction tank of the present application, a microbial activator may be additionally added to increase the MLSS concentration of Bacillus bacteria, and the microbial activator may include a silicate fertilizer component or magnesium sulfate, and when administered as a silicon compound, the silicon standard 0.02 When administering ˜0.2 kg / BODkg, or administering Mg-containing compounds, 0.004-0.1 kg / BODkg of magnesium can be added to promote the activation of Bacillus, and in the first room of the Bacillus reaction tank of the present application, The lid or cap is enclosed and the lid or cap is enclosed in order to prevent the external discharge of odorous substances generated from the wastewater input tank, collection tank, flow control tank, and sedimentation tank. Exhaust fan, exhaust duct or pipe is connected to transfer odorous substance to certain part of the exhaust fan. It is a wastewater treatment method which can be applied as a means for removing malodorous substances by contacting a high concentration of Bacillus bacteria by making the other end of the structure extends to the inside of the first chamber of the Bacillus reaction tank of the present application.

When comparing the SPCB method of the present application with the conventional Bacillus bacterium treatment method (B3 method) and explaining the difference, it is necessary to maintain the balance of the concentration of microorganisms inside the reactor as the supply means of the microorganism is suspended growth in the B3 method. In order to control the microorganisms in the tank to prevent the loss of a separate transport facility is necessary, in the SPCB method of the present application, the microbial supply means is provided in the attached growth (Attatched growth) and the microorganisms attached to the filter media surface The device has a simple difference because it does not need to be separated so that a separate feeding facility for microbial supply is not necessary.

Comparing the adhesion state of microorganisms and organic matter, the B3 process requires complete mixing of microorganisms and organic matters and artificially controlled to keep the concentration of microorganisms constant at 7,000 ~ 9,000 / l, whereas SPCB process It is easy to attach, and the concentration of fixed / attached microorganism is 30,000 ~ 50,000 / l, which is about 10 times higher than that of B3 method, and it is highly concentrated because it is attached to the fixed microorganism. The required area can be reduced.

In addition, in comparison with the maintenance of microorganisms, B3 method is sensitive to hydraulic load, organic material load and temperature, so it is weak in adaptation to external changes, but SPCB method maintains relatively high microbial concentration, so hydraulic load, organic material Compared with the sludge generation rate, the capacity of adaptation to load and temperature change is strong, and the B3 method has a short sludge age, which has a large amount of surplus generation and a large amount of accessories for its treatment, whereas the SPCB method has a long sludge age. Surplus sludge generation rate is very low, the generation amount is extremely small and the handling of surplus sludge is easy.

Therefore, the SPCB method is easier to maintain than the B3 method, requiring little professional and managerial personnel, extremely low sludge generation, better odor removal efficiency than the existing B ₃ method, and stable treatment water quality. Have

In the case of using Bacillus bacteria for the treatment of high concentration wastewater, the odor is generally caused by the inclusion of anaerobic treatment, but the slope plate with contact bacillus biofilm perfect process (aka SPCB) method is used in the treatment method. High-concentration biofilm method of contact biofilm method allows microorganisms to attach to high concentrations up to 30,000 ~ 50,000 / l, and this high concentration of Bacillus bacteria absorbs or removes odors, and the processing efficiency of nitrogen and phosphorus including organics is the best among all methods. BOD 95 ~ 98%, Nitrogen 90 ~ 95%, Phosphorus 70 ~ 80% removal efficiency is obtained, and deodorization is eliminated by eliminating odor components, so no separate odor removal facility is needed, and high concentration of microorganism Due to the contact biofilm, each reactor does not need to be returned in large quantities to maintain microorganisms. O becomes smaller, and has the effect of covering an area of ownership in the waste water treatment plant to be reduced by significantly.

Prior to describing the embodiments of the present invention for implementing the technical idea of the present application with drawings, the terms or words used in the specification or the claims of the present application should not be interpreted as being limited to the ordinary or dictionary meanings. The scope of protection of the present application should be construed as meanings and concepts corresponding to the technical spirit of the present invention, the use examples presented in the present specification or drawings are merely one of the most preferred embodiments of the present invention and represent all the technical ideas of the present application. It is to be understood that there may be various equivalents and variations in place of them at the time of the present application.

In addition, the embodiments described below in the technical idea of the present application provides an application example for implementing the technical idea of the present invention, and existing image control devices and automatic control control systems can be added to the configuration presented herein. Of course.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 1 is to show a simplified configuration of the wastewater treatment method according to the B3 method of Patent No. 0151928 disclosed in the prior art, looking at the conventional B3 method according to the process diagram of Figure 1, the input tank (2) from the collection vehicle The manure and the purified sludge (1) introduced into the storage tank (5) are introduced into the storage tank (5) through a pretreatment facility (3) such as a crusher and a contaminant removal device, and a certain amount of manure is stored in the storage chamber (5) in the first chamber (11) of the aerobic digestion tank (10). And oxidative decomposition occurs when the organic matter in the manure comes into contact with Bacillus bacteria cultured at high concentration, and this organic material removal action continues in two rooms (12), three rooms (13) and four rooms (14). do. In the B3 method, the aeration method in the digestion reaction tank 10 is not the equalization aeration. As the concentration of dissolved oxygen decreases from the chamber 11 to the final chamber 14, the overall aerobic aerobic state is maintained.

The outflow water from the final chamber 14 of the digestion reaction tank is introduced into the primary settling tank 20, and after the solid-liquid separation by gravity occurs, the symbolic water is introduced into the aeration tank 30 of the activated sludge process together with the dilution water 21. The sludge of the sedimentation tank 40 is returned to the first chamber 11 of the digestion reaction tank 10 through the return pipe 41 at about three times the flow rate of the inflow into the digestion reaction tank 10, and also through the return pipe 42. If the dilution water 21 is doubled, the flow rate flowing into the aeration tank 30 becomes 12 times in total, and the hydraulic flow in the aeration tank 30 is used. Since it is necessary to increase the residence time, it is a method that takes excessive land area, and the outflow water from the aeration tank 30 of the activated sludge process is introduced into the secondary sedimentation tank 40 and precipitated by gravity, and the symbol water is disinfecting treatment room (if necessary). And finally discharged via 45 The excess sludge not returned from 0) or the secondary sedimentation tank 40 was concentrated in the sludge concentration tank 50, adjusted in the sludge storage tank 60, and dehydrated in the dehydrator 70 by a predetermined amount.

Figure 2 is intended to show the configuration of the wastewater treatment method according to the slope plate with contact bacillus biofilm perfect process (SPCB method) disclosed in the present technology, a general wastewater, wastewater in the process diagram of FIG. As the treatment process is disclosed in detail, the SPCB reaction tank includes a Bacillus reaction tank divided into a plurality of yarns and a settling tank for accommodating the effluent water through the Bacillus reaction tank. Part of the problem to treat the influent by dominance is that there is no significant difference from the wastewater treatment method disclosed in the prior art, but the features of the present application is 0.5 ~ 1.0cm thickness in the Bacillus reaction tank, having a void of 90% or more Bacterial contact Bacillus biofilm media with biofilm having an inclination angle in the range of 30 to 60 degrees. It is installed / built in the russ reactor, characterized in that the MLSS concentration of Bacillus bacteria to operate while maintaining the range of 30,000 ~ 90,000 / l.

Therefore, in Figure 2 as a means for implementing the technical idea of the present invention, the wastewater treatment method is composed of a first reactor and a second reactor and again the first reactor and the second reactor is to be provided in a structure divided into four deletions, respectively The first reactor 110 is divided into a first chamber 111, a second chamber 112, a third chamber 113, and a fourth chamber 114, and an inclined plate is fabricated and assembled in each chamber. The second reactor 120 is also divided into a first chamber 121, a second chamber 122, a third chamber 123, and a fourth chamber 124. In each chamber, an inclined plate is manufactured and assembled and installed. There is an oxygen supply for the respiration metabolism of the microorganisms, but the dissolved oxygen in each chamber is very weak inflow is characterized by maintaining the dissolved oxygen in the range of 0.1 ~ 1 mg / ℓ.

In FIG. 2, a total of 8 SETs are installed in each chamber of the first reactor and the second reactor in the first chamber of the first reactor to the fourth chamber of the second reactor in the DOIC (dissolved oxygen indication system) for indicating and controlling the DO concentration. Although it is shown to be installed, but in the case of sewage with relatively low water quality, only four initial reactors can be operated / operated, and high concentration wastewater, such as livestock wastewater, may be used in a first reactor, a second reactor, Of course, it can be installed and operated in the third reactor.

Biofilm media sheets used herein are pelletized by pulverizing PP (Poly Propylene), PE (Poly Ethyene) or collected waste vinyl resin (high synthetic resin) into 2 ~ 3mmΦ using a grinder. Prepare a secondary raw material selected from ocher, zeolite, diatomaceous earth, ceramics, activated carbon, and charcoal powder, and mix and mix the main raw material and secondary raw material in the blender within the range of 1: 0.05 to 0.2. The raw material was made by three carbonization process in the heating furnace. The first carbonization process is carbonized at 150 ~ 200 ℃ for 5 ~ 10 minutes and carbonization is about 50%, and the second carbonization process is 250 ~ 350 After carbonizing at about 5-8 minutes at 80 ℃ and carbonizing at about 80%, the 3rd carbonization process carbonizes at 400 ~ 450 ℃ for 3-5 minutes to complete the melting process, and then carbonized and melted raw materials. The thickness of the sheet is 0.5-1.0 cm Constitute the above can be obtained biofilm media sheet used herein has a more than 90% of the void when an extrusion molding.

The biofilm media sheets provided by the above process have extremely good pores or specific surface areas, and have good conditions for adhesion growth and growth of microorganisms as contact media, and the media sheets have an inclination angle in the range of 30 to 60 degrees with respect to the horizontal plane. As it is assembled on the frame in the form of a slanted plate, it is an ideal contact material that has a smooth flow of water, no clogging of microorganisms, and smooth dropping of old microorganisms. It has excellent treatment efficiency, long sludge age, and extremely low sludge generation. At least it can be called an economic method.

After installation of the biofilm media sheet, the microbial adhesion state has a specific surface area of 7,200 ~ 14,500 / after the operation for about 20 days, and the porosity is 92.8%, which is faster than other media, and once attached, the microbial membrane is easily detached even under impact load. It does not have the property.

The treatment characteristics of the SPCB method of the present application are high MLSS concentrations and maintain the range of 30,000 ~ 90,000 / l, and the activity of the active Bacillus bacterium is excellent in removing the TN and TP. Bacillus, an anaerobic bacterium that can grow well under low conditions, is predominantly cultured to remove organic nitrogen, phosphorus, and organic matter, nitrogen, and phosphorus to remove vacant nutrients, resulting in poor conditions for survival of Bacillus. When it is formed, Bacillus spores are sporified and flow into the sedimentation basin, and it is understood that solid-liquid separation is easily performed.

In order to increase the concentration of microorganisms in the Bacillus reaction tank of the present application in a short time, an additional microbial activator can be added. In the case of administration of the magnesium standard 0.004 ~ 0.1 ㎏ / BODkg by means of input means can increase the activity of microorganisms in the reactor.

In addition, the first chamber of the Bacillus reaction tank of the present application is connected to an exhaust fan or an exhaust duct for transporting odorous substances generated from an input tank of a wastewater treatment facility, a collection tank, a flow rate adjustment tank, and a sedimentation tank, so that the odorous substances are highly concentrated. The odorous substances are removed by contact with the bacteria, and the unique odorous substances of sewage and manure livestock wastewater by Amine group are minutely contacted / ingested by the high concentration of Bacillus bacteria predominantly cultured in the first chamber of the Bacillus reactor. Since hydrogen sulfide maintains an aerobic state, it is converted into a sulfur oxide that does not smell at all. Therefore, it is necessary to install a washing tower and adsorption tower to remove odorous substances in existing wastewater treatment plants and operate these facilities. In comparison, it is possible to drastically reduce costs in terms of installation costs as well as operation costs.

In addition, the SPCB method of the present application uses an imaging system to grasp the species and nutritional status of microorganisms present in various sludges in the reaction chamber and to adjust the oxygen supply amount. It is provided to enable the microorganism control to control the DO concentration by using the connected automatic valve, the pump flow rate and pumping time of the circulation tank pump can be provided to enable remote control by the automatic valve and the water level control device.

2, the first reactor 110 is divided into first to fourth rooms 111, 112, 113, and 114, and a DOIC 102 is provided in each room. ) Are provided, respectively, so that an air injector 103 through which air is injected through a pipe 104 connected to a roots blower is provided, and dissolved oxygen (DO) in each chamber is maintained in a range of 0.1 to 1 mg / l. Aeration is made, and inside each chamber, the thickness ranges from 0.5 to 1.0 cm, and the biofilm 101 having a void of 90% or more is attached / built in with multiple layers of hard plate contact Bacillus biofilm having an inclination angle of 30 to 60 degrees. The installed wastewater, which is installed and processed from the first chamber to the fourth chamber, flows into the circulation tank 115, and the wastewater separated into the upper portion of the circulation tank 115 passes to the first settling tank 120. The wastewater, which has not been matured, is collected in the first chamber 111 of the first reactor 110 by a circulation pump. ) Is recycled through the first to fourth chambers and is provided to age the decomposition.

Part of the settling sludge in the first settling tank 120 is to be returned to the first chamber 111 of the first reactor by using the settling pump (P1), the return rate is 0.5 to control the concentration of microorganisms in the first chamber Although it can be circulated in the range of ˜1A, the present invention can be adhered to a high concentration using a microbial contact medium, so that the return to the first chamber of the first reactor is not so important.

Next to the first settling tank 120, a second reaction tank 130 may be installed and the second reaction tank may be divided into four chambers (131, 132, 133, and 134), and the same as the first reaction tank 110 may include DOIC ( 102 are provided, respectively, and an air diffuser 103 through which air is injected through a pipe 104 connected to a roots blower is provided, and dissolved oxygen (DO) in each chamber is maintained in a range of 0.1 to 1 mg / l. Aeration is made so that the inside of each chamber has a thickness in the range of 0.5 to 1.0 cm, and the biofilm 101 having a porosity of 90% or more is installed so that the microorganisms are grown and cultured at a high concentration and the second chamber settles after passing through the fourth chamber 134 of the treatment chamber. (140) is different from the conventional B3 method of the primary sedimentation tank 120 and the secondary sedimentation tank 140 in the SPCB method of the present application is 200 ~ 300%, the secondary reaction tank as the primary reaction tank in the conventional B3 method Although 100-300% of the return must be strictly carried out in one room, the SPCB method of this company attaches the media. As the growth proliferation method is used, there is no big problem even if there is no return, so the return plumbing facility is prepared for the case. It can be carried out, and it can be done without return under normal operating conditions.

After passing through the first reaction tank and the second reaction tank using the technical idea of the present application, the supernatant of the secondary sedimentation tank 140 is sent to the chemical treatment neutralization tank 150 to neutralize and discharged, or when it is determined that additional aggregation is necessary. By adding a flocculant in the chemical treatment neutralization tank 150, the precipitation reaction may be further performed and sent to the final flocculation precipitation tank 160.

Sludge withdrawal pump (P2) is provided at the bottom of the secondary sedimentation tank (140) to send the sludge submerged to the sludge concentration storage tank (170), the sludge withdrawal pump (P3) at the bottom of the final flocculation settling tank (160) The sludge that is settled down to the lower side is sent to the sludge concentration tank 170 and the treated water passed through the blue water or the chemical treatment neutralization tank 150 on the top of the final flocculation sedimentation tank 160 may be discharged, but the water quality standards of these discharged waters are increased. If it is to be used as sewage may be sent to the electrolytic sterilization tank 180 may be supplied to the living sewage through the disinfection / sterilization process through the electrolytic process.

The electrolytic sterilization tank 180 is provided with an electrolytic device 181, the suspended solids (SS) may be generated by the disinfection reaction of the electrolytic process, and in order to increase the precision of the filtration if filtration is required to obtain more advanced water SAND FILTER (182) and ACFILTER (183) two filtration tanks are provided and a pressure transfer pump 184 is provided inside the electrolytic disinfection tank 180, which can be applied by continuous circulation filtration. Can be reused for theft.

Hereinafter, an embodiment of the present invention showing the contaminant removal efficiency by the wastewater treatment method provided by the oral configuration of the present application was described to confirm the effect.

Example 1

In order to confirm the treatment efficiency of the sewage and wastewater treatment system of the present application, the experimental results processed at the livestock waste treatment plant located at San 7, Okcheon 4-ri, Yangcheon-eup, Yangpyeong-eup, Yangpyeong-gun, Gyeonggi-do. present.

Capacity: 0.5㎥ / D

Treatment method: Nitrogen and phosphorus removal and advanced treatment technology of sewage and wastewater using inclined plate contact Bacillus biofilm method (SPCB: SPCB PROCESS is called below SLOPE PLATE WITH CONTACT BACILLUS BIOFILM PERFECT PROCESS)

Operating Period: April 30, 2009 ~ June 29, 2009

Inflow: Livestock Wastewater

(Unit: mg / l)

Item

collection SS BOD
COD
TN
TP
Remarks
inflow outflow inflow outflow inflow outflow inflow outflow inflow outflow One 11500 11.0 15700 1.5 6297 24.1 3864.5 22.95 589.76 0.034 2009.04.30 2 18200 3.5 19350 4.6 6950 14.5 3899 17.47 512.57 0.138 2009.05.29 3 19900 5.2 18400 1.9 6894 25.6 4368 14.67 599.7 0.083 2009.06.22

From the analytical data, it is possible to confirm the result of the high treatment of the final treated water.

Example 2

In order to confirm the treatment efficiency of the sewage and wastewater treatment system of the present application, the experimental results treated at the sanitary treatment plant at 34, Yanggeun 4-ri, Yangpyeong-eup, Yangpyeong-gun, Gyeonggi-do, entrusted by Yurim Entech Co., Ltd. are presented as follows.

Capacity: 0.5㎥ / D

Treatment method: Nitrogen and phosphorus removal and advanced treatment technology of sewage and wastewater using inclined plate contact Bacillus biofilm method (SPCB: SPCB PROCESS is called below SLOPE PLATE WITH CONTACT BACILLUS BIOFILM PERFECT PROCESS)

Operation Period: 2009. 07. 28 ~ 2009. 08. 28

(Unit: mg / l)

Item
collection SS BOD COD T-N T-P Remarks inflow outflow inflow outflow inflow outflow inflow outflow inflow outflow 4 15800 2.5 5037.5 1.0 3585 6.5 815.6 11.1 219.8 0.042 2009.07.28 5 11700 3.4 4162.5 0.5 3249 16.2 813.8 8.8 177.2 0.128 2009.08.28

From the analytical data, it was possible to confirm the result of the advanced treatment of the final treated water.

1 is a block diagram of a waste water treatment process according to the prior art B3 method.

2 is a block diagram of a wastewater treatment process by the SPCB method of the present application.

** Description of the major symbols in the drawings **

100: treatment wastewater, wastewater 101: biofilm

102: DOIC 103: diffuser

104: blower pipe 110: first reactor

111: first room 114: fourth room

115: circulation tank 120: primary precipitation tank

130: second reactor 140: secondary sedimentation tank

150: chemical treatment neutralization tank 160: flocculation sedimentation tank

170: sludge concentration tank 180: electrolytic sterilization tank

181: electrolytic device 182: SAND FILTER

183: ACFILTER 184: pressure transfer pump

Claims (4)

In the wastewater treatment method for treating influent by predominantly Bacillus bacteria and having a Bacillus reaction tank divided into a plurality of yarns and a precipitation tank for receiving the effluent through the Bacillus reaction tank, The Bacillus reaction tank is divided into division chambers of the first to fourth chambers and forms a structure in which each aeration chamber is aerated to form dissolved oxygen in the range of 0.1 to 1 mg / l, and the Bacillus reaction tank has a thickness of 0.5 to 1.0. The biofilm having a pore size in the range of 90 cm and having a pore diameter of 90% or more is provided so that the MLSS concentration of Bacillus bacteria is maintained while the MLSS concentration of Bacillus bacteria is maintained in the range of 30 to 60 degrees. Wastewater treatment method characterized in that. delete The method of claim 1, The effluent purified through the Bacillus reaction tank passes through the electrolytic sterilization tank 180, and then passes through the filtration process of the SAND FILTER 182 and AC (Active Carbon) FILTER (183), characterized in that it is provided as a living water or heavy water purification water. Oh, waste water treatment method. The method of claim 1, In the first chamber of the Bacillus reaction tank, an exhaust fan or an exhaust duct for transporting odorous substances generated from an input tank, a collecting tank, a flow adjusting tank, and a sedimentation tank of a wastewater treatment facility is connected to remove the odorous substances by contacting with a high concentration of Bacillus bacteria. Wastewater treatment method characterized in that.

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