KR102607197B1 - High-concentration landfill leachate, livestock wastewater, manure, food wastewater, industrial wastewater and low-concentration wastewater treatment system using an upflow complex bioreactor - Google Patents

Abstract

The present invention relates to a treatment system for high-concentration landfill leachate, livestock wastewater, excrement, food wastewater, industrial wastewater, and low-concentration sewage wastewater using an upflow complex biological reactor, and more specifically, to a random/anaerobic tank with a lower sludge layer and an upper aerobic tank. It consists of an upflow dual bioreactor (UDBR) that oxidizes and decomposes pollutants in an aerobic state, removes organic substances and nitrogen through denitrification in a facultative anaerobic state, and removes sludge that has consumed excessive phosphorus. In addition to simultaneously removing phosphorus through removal, the treatment efficiency is improved by repeating the above process in multiple stages according to the properties of sewage and wastewater containing high concentrations of odor-causing substances and nitrogen such as livestock wastewater and manure and the required treated water quality. By improving the treatment of landfill leachate, low-concentration sewage and wastewater, and high-concentration livestock wastewater, manure, industrial wastewater, etc., by using an upflow complex biological reactor that can simultaneously treat nitrogen-containing sewage and wastewater, high-concentration landfill leachate, livestock wastewater, etc. Disclosed are sewage, food wastewater, industrial wastewater, and low-concentration wastewater treatment systems and wastewater treatment methods.

Description

High-concentration landfill leachate, livestock wastewater, manure, food wastewater, industrial wastewater, and low-concentration wastewater treatment system using an upflow complex biological reactor {High-concentration landfill leachate, livestock wastewater, manure, food wastewater, industrial wastewater and low-concentration wastewater treatment system using an upflow complex bioreactor}

The present invention relates to a treatment system for high-concentration landfill leachate, livestock wastewater, excrement, food wastewater, industrial wastewater, and low-concentration wastewater using an upflow composite biological reactor, and a wastewater treatment method thereof. More specifically, it relates to a wastewater treatment system and a wastewater treatment method using an upflow composite biological reactor. It consists of an upflow dual bio reactor (UDBR) consisting of an anaerobic tank and an upper aerobic tank in an integrated form to oxidize and decompose pollutants (odorous substances) in the inflow water in an aerobic state and then remove organic matter by denitrification in a facultative anaerobic state. Removal of phosphorus is carried out at the same time by removing substances and nitrogen, and sludge with excessive intake of phosphorus. In addition, sludge reduction and nitrogen removal are achieved through aerobic oxidation and decomposition of organic sludge and high concentration of odor-causing substances such as livestock wastewater and excrement. By repeating the above process in multiple stages according to the nature of the sewage and wastewater and the required treated water quality, the treatment efficiency is improved to improve the nitrogen content of landfill leachate, low-concentration sewage and wastewater, and high-concentration livestock wastewater, manure, and industrial wastewater. It relates to a treatment system for high-concentration landfill leachate, livestock wastewater, excrement, food wastewater, industrial wastewater, and low-concentration wastewater treatment using an upflow composite biological reactor that can simultaneously process sewage and wastewater, and its wastewater treatment method.

Current wastewater treatment has limitations in treating high-concentration wastewater and reducing odor and sludge, and is particularly vulnerable to removal of odorous substances, which is a cause of civil complaints in the surrounding area. In addition, due to secondary pollutants generated through physical and chemical treatment, sludge increases and high concentration of odorous substances is generated due to corruption, which causes many complaints and impairs the quality of life. In order to resolve this, various deodorization facilities are installed and responded to. The reality is that there is considerable difficulty in removing complex odors, and the cost is also considerable.

In addition, the secondary generation of contaminated sludge generated during the primary physical and chemical treatment process causes the spread of putrefaction odor and the increase in sludge by utilizing the Upflow Duel Bio Reactor (UDBR) of our company. By avoiding physical and chemical treatment to minimize sources of odor and minimizing secondary sludge generation, pollutants are fundamentally reduced and then subjected to biological reaction to effectively reduce odor and sludge. This method involves the removal of nitrogen and phosphorus, which are factors causing eutrophication of lakes, and various existing treatment methods such as MSBR, improved SBR, A²0, A0, Bardenpho, VIP, UCT, and MBR are used. , these methods nitrify organic (water) or ammonia nitrogen after pretreatment and then return the nitrified liquid to a completely mixed anoxic tank to denitrify it, so the C/N (carbon/nitrogen) ratio of sewage and wastewater is low or When the concentration of contaminants such as organic compounds is high, treatment efficiency decreases, and this change in C/N ratio or change in concentration acts as a shock load, which reduces treatment efficiency. In other words, nitrification and denitrification efficiency decreases due to C/N ratio imbalance, and the return amount cannot be increased during shock load due to high-concentration wastewater inflow, so when excessively concentrated influent flows into the aeration tank, the nitrification rate decreases, making process operation difficult. There is a downside to losing.

In addition, in the case of advanced treatment processes in which separation membranes are combined with horizontal flow biological treatment processes such as conventional MSBR, improved SBR, A²0, A0, Bardenpho, VIP, UCT, and MBR, the lower part of the membrane frame is used to control sludge deposited on the surface of the membrane. Due to excessive aeration and cleaning, the D0 (dissolved oxygen concentration) in the aeration tank remains high, and as a result, when sewage and wastewater flows in at low concentration or low flow rate, microbial oxidation occurs severely, making it difficult to maintain the concentration of sludge at a high concentration and treatment. If the sludge concentration in the tank is low, the D0 of the anoxic tank increases, which has the disadvantage of lowering the denitrification efficiency. For this reason, in the biological process combined with membrane separation, sludge must be maintained at a high concentration to improve the nitrogen removal rate, but when operated with a high sludge concentration, the frequency of clogging of the separation membrane increases and the differential pressure increases, so the cleaning cycle is increased. There are disadvantages in that the replacement cycle is shortened, leading to increased operating costs and difficulties in stable treatment, as well as difficulties in maintenance due to membrane rupture.

In addition, improved types such as MSBR, SBR, A²0, A0, Bardenpho, VIP, UCT, and MBR, which are currently widely used, are also applied to suppress odors caused by structural problems when treating sewage and wastewater containing high concentrations of organic substances. It is also a reality that it has structural limitations that can cause a large amount of pre- and post-odor odor.

Currently, the common treatment method is Conventional Activated Sludge. The standard activated sludge method consists of the following steps: - after initial contaminant treatment - flow adjustment tank - primary chemical treatment - primary sedimentation tank - storage tank - aeration tank - final sedimentation tank - advanced treatment process, etc.

In this treatment method, the sludge concentration in the settling tank is 5,000 to 15,000 mg/l, so a digestion tank or thickening tank is required for post-treatment of excess sludge and primary treatment sludge, and a dehydration tank using a dehydration device to treat this sludge. When operating, a high concentration of putrid odor is generated and a deodorizing device must be operated to remove it.

However, it is true that civil complaints frequently arise due to the limitations of deodorizing devices for high-concentration odor removal. Urban sewage treatment plants and livestock waste and food waste treatment plants were initially operated at a significant distance from residential areas, but due to urban expansion, residential areas are becoming closer to each other. As a result, there are frequent cases of complaints complaining of pain due to bad odor, which is becoming a cause of conflict.

Although a significant amount of finances is being invested to solve this problem, the reality is that there are many difficulties in completely solving the problem. In addition, in order to reduce the load of primary high-concentration wastewater, secondary coagulants and coagulants are used through primary physical and chemical treatment of organic sludge, which creates additional sludge and causes high-concentration negative effects in the thickening tank and dewatering process, which is a factor in the increase of sludge. There is a realistic problem that cannot help but arise.

In addition, the reality is that processing costs will inevitably increase. Accordingly, our Upflow Duel Bio Reactor (UDBR) method minimizes the generation of bad odors by suppressing and decomposing organic putrefaction odors through contact with microorganisms from the preemptive flow rate adjustment process, and removes pollutants through decomposition of organic matter. We aim to reduce costs by minimizing secondary sludge generation through oxidation and decomposition.

Republic of Korea Patent Publication No. 10-1300466 Republic of Korea Patent Publication No. 10-1147157 Republic of Korea Patent Publication No. 10-0489728 Republic of Korea Patent Publication No. 10-0510878

According to the conventional treatment methods for livestock manure, food wastewater, leachate, industrial wastewater, and sewage/wastewater, ① the treatment cost is excessive, ② the treatment of wastewater is incomplete, and ③ secondary pollutants are generated due to the production of intermediate products, and odor is generated. Since the problem is widespread and difficult to collect and treat, the present invention improves these conventional problems and provides an improvement that can more efficiently and economically treat landfill leachate, livestock manure, food wastewater, leachate, industrial wastewater, and sewage and wastewater. A high-concentration livestock and manure, industrial wastewater, sewage and wastewater treatment device using the Upflow Duel Bio Reactor (UDBR) method, and an upflow composite organism that can reduce odor and sludge using the same device. The problem is to provide a low- and high-concentration sewage and wastewater treatment system using a reactor (UDBR: Upflow Duel Bio Reactor) and a wastewater treatment method using the same.

The low- and high-concentration sewage and wastewater treatment system using an upflow dual bio reactor (UDBR) according to the present invention, which solves the above problems, includes a screen tank (10) for removing contaminants contained in raw water, and the screen. A flow rate adjustment tank (20) installed at the rear of the fine screen tank (10) where raw water from which contaminants in the tank (10) have been removed flows in to homogenize the water quality concentration of the sewage and wastewater and regulate the inflow amount of the sewage and wastewater, and the flow rate An upflow Duel Bio Reactor (UDBR) 30 that flows in the sewage and wastewater from the adjustment tank 20 and treats the sewage and wastewater, and the sewage treated in the upflow composite biological reactor 30. · A sedimentation tank 40 that flows in wastewater treatment water and stores it for a certain period of time, a storage tank 50 that transfers and stores the sewage and wastewater treatment water stored in the sedimentation tank 40, and the sewage and wastewater stored in the storage tank 50. An advanced treatment tank 60 for advanced treatment of treated water, a discharge tank 70 for flowing in and discharging the highly treated treated water from the advanced treatment tank 60, and the lower part settled in the lower part of the sedimentation tank 40. It is characterized by comprising a sludge improvement tank (80) that transfers the concentrated sludge to the flow control tank (20) and the upflow biological reactor (30) and then transfers the remaining surplus sludge to aerobically improve it.

Here, the upflow dual bio reactor (UDBR) 30 includes a random anaerobic tank 32 with a stirring device 33 installed at the bottom, and generates fine bubbles for supplying oxygen necessary for wastewater treatment at the top. It is characterized in that the upper aeration tank (34) in which the membrane diffuser (47) is installed is formed in an integrated form.

Here, the sewage and wastewater treated in the upflow dual bio reactor (UDBR: Upflow Duel Bio Reactor) 30 is between the upflow dual bio reactor (UDBR) 30 and the sedimentation tank 40. A first unit tank 42 where water flows in and aerates it, a second UDBR 44 which introduces the aerated treated water from the first unit tank 42 and induces a denitrification reaction, and treatment in the second UDBR (44). It is characterized in that a second unit 46 is further configured to aerate the treated water.

Here, a microfilter 62 filters fine sludge before transferring the treated water treated in the advanced treatment tank 60 to the discharge tank 70, and sterilizes the filtrate filtered by the microfilter 62. It is characterized in that it is further provided with a UV sterilizer (64).

The present invention also provides a low- and high-concentration sewage and wastewater treatment method using an upflow dual bio reactor (UDBR).

The low-concentration and high-concentration sewage and wastewater treatment method using the upflow biological reactor includes a screening step of introducing low-concentration or high-concentration raw sewage and wastewater and then screening to remove contaminants;

A flow rate adjustment step of homogenizing and neutralizing the water quality concentration of the raw water from which the contaminants have been removed and adjusting the inflow amount of the raw water;

The raw water flowing in in the flow rate adjustment step is treated to oxidize and decompose pollutants, remove organic substances and nitrogen, remove phosphorus, and remove odor in an upflow dual bio reactor (UDBR) consisting of a random anaerobic tank and an upper aerobic tank. A biological reaction step that carries out the process;

After the treated water that has completed the biological reaction step is introduced into the sedimentation tank and stored in the sedimentation tank for a certain period of time, the treated water is transferred to the storage tank, and the bottom concentrated sludge settled at the bottom is transferred to the flow control tank (30) and the upstream biological reaction tank (40). Transferring the remaining excess sludge to a sludge reforming tank, repeating the biological reaction step in the flow rate adjustment step for the lower concentrated sludge, dewatering the excess sludge, and transporting the sludge cake. It is characterized by

Here, the raw water flowing in in the flow rate adjustment step is purified by inducing contact with microorganisms. The microorganisms used at this time are the microbial group used in the secondary sedimentation tank and internal return, and the concentration of inoculated microorganisms in the raw water is determined. is characterized in that it is maintained at 1,500 to 15,000 mg/l.

Here, in the biological reaction step, the concentration of microorganisms in the optional anaerobic tank in the upflow dual bio reactor (UDBR) is maintained at 10,000 to 30,000 mg/l.

According to the low- and high-concentration sewage and wastewater treatment system using the upflow dual bio reactor (UDBR) provided according to the present invention and the wastewater treatment method using the same,

By applying the Upflow Duel Bio Reactor (UDBR), primary physical and chemical treatment is avoided to suppress fundamental odor generation, and there is no sludge generated at this time, which has the effect of blocking secondary pollution.

The generated wastewater is screened to remove contaminants and sediments, contact with microorganisms from the flow control tank, and the upflow dual bio reactor (UDBR) method is used to reduce the concentration of microorganisms in the random/anaerobic tank to 10,000 to 30,000 mg/day. It is a high-efficiency treatment device that can actively cope with the load of various contaminants in the microbial layer maintained at about ℓ. It responds to water quality and flow rate fluctuations of inflowing livestock waste, food wastewater leachate, industrial wastewater, and sewage and wastewater, and provides dual operation of the upper aerobic tank. Through this, problems such as deterioration of runoff water quality can be greatly alleviated.

In addition, in the upflow dual bioreactor (UDBR), a complete facultative anaerobic state can be maintained when denitrification (nitrogen removal) or phosphorus (P) release is induced in the lower high-concentration random microbial layer, making it easy to design the reactor. The treated water passes through the upper high-efficiency aerobic tank, and high-concentration wastewater and sewage/wastewater are highly treated in the microbial reactor, so the operation method is simple.

In addition, the present invention is capable of actively responding to changes in the concentration of organic sewage and wastewater containing nutrients and non-decomposable substances such as nitrogen (N) and phosphorus (P), such as livestock manure, food wastewater, and high-concentration industrial wastewater, and high-concentration odors. The treatment efficiency is high by increasing the concentration of random and aerobic microorganisms inside the Upflow Duel Bio Reactor (UDBR), the treatment process is simple, and operating costs are reduced by reducing odor and sludge, and post-processing. An upflow dual bio reactor (UDBR), a gravity sedimentation tank, and a pressurized flotation tank are installed to maintain high quality water quality by separating solids and liquids by installing a pressurized flotation tank before discharging to a river or stream. It is possible to provide landfill leachate, livestock manure, food wastewater, high-concentration industrial wastewater, waste leachate, and sewage and wastewater treatment systems through advanced treatment, and a method to efficiently treat low and high concentration sewage and wastewater using the treatment system. There is an advantage.

Figure 1 is a diagram showing the configuration of a low-concentration and high-concentration sewage and wastewater treatment system according to the present invention.
Figure 2 is a configuration diagram showing another embodiment of a sewage and wastewater treatment system according to the present invention.
Figure 3 is a configuration diagram showing another embodiment of a sewage and wastewater treatment system according to the present invention.
Figure 4 is a diagram showing the structure of an upflow dual bio reactor (UDBR) constituting the sewage and wastewater treatment system of the present invention.
Figure 5 is a block diagram of a high-concentration industrial wastewater treatment method using a sewage and wastewater treatment system according to an embodiment of the present invention in comparison with before and after improvement.
Figure 6 is a block diagram of the low-concentration sewage and wastewater treatment method using the sewage and wastewater treatment system according to an embodiment of the present invention in comparison with before and after improvement.
Figure 7 shows a treatment system diagram of a sewage and wastewater treatment system according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

According to the conventional treatment methods for livestock manure, food wastewater, leachate, industrial wastewater, and sewage/wastewater, ① the treatment cost is excessive, ② the treatment of wastewater is incomplete, and ③ secondary pollutants are generated due to the production of intermediate products, and odor is generated. Since there are problems that are widespread and most difficult to collect and treat, there is a need for an advanced treatment method that can improve these problems and reduce odor and sludge in sewage and wastewater more efficiently and economically. In the present invention, an improved form of treatment method is required. The purpose is to present a high-concentration livestock and manure, industrial wastewater, and sewage/wastewater treatment device using the Upflow Duel Bio Reactor (UDBR) method, as well as an advanced treatment method that can reduce odor and sludge by the same device. There is a purpose.

In addition, the present invention consists of an upflow dual bio reactor (UDBR) consisting of a discretionary anaerobic tank with a lower sludge layer and an upper aerobic tank in an integrated form to oxidize and decompose pollutants in an aerobic state and then oxidize and decompose pollutants in a facultative anaerobic state. In addition, phosphorus is simultaneously removed by removing organic substances and nitrogen through denitrification and sludge that has consumed excessive phosphorus, as well as sewage and wastewater containing nitrogen and high concentrations of odor-causing substances such as livestock wastewater and excrement. By repeating the above process in multiple stages according to the properties and required treated water quality, the treatment efficiency is improved, and in particular, the mesh diamond-shaped impeller (stirring device) installed in the lower arbitrary/anaerobic tank is rotated at slow speed to · Stir the inside of the anaerobic tank evenly, and install a membrane diffuser (aerator, surface aeration device, etc.) that generates fine bubbles at the bottom of the upper aeration tank to supply oxygen necessary for wastewater treatment to activate microorganisms and react (aeration) ) Facilitates the treatment of overall pollutants and the discharge of nitrogen gas in the tank, and provides a sewage and wastewater treatment device containing nitrogen such as high-concentration livestock wastewater, manure, and industrial wastewater, and low-concentration and wastewater treatment systems using the above sewage and wastewater treatment system. The purpose is to provide a method for treating high-concentration sewage and wastewater.

The low- and high-concentration sewage and wastewater treatment system using the upflow biological reactor according to the present invention includes a screen tank equipped with a raw water inlet and a screen, and a flow rate adjustment tank installed at the rear of the screen tank to homogenize the water quality concentration of the raw water and control the outflow amount of the raw water. (Primary microbial contact tank) Upflow Duel Bio Reactor (UDBR): a lower arbitrary tank and an upper aeration tank (aeration tank) that maintains an appropriate oxygen supply, and the sludge decomposed in the upper aeration tank (aeration tank) into solid liquid The sedimentation tank for separation and the separated supernatant are discharged or treated with advanced treatment (UV disinfection after using pressure flotation or rapid sedimentation) and then discharged or used as recycled water. The concentrated sludge from the sedimentation tank is returned to the primary microbial contact tank and surplus is required. In this case, it has a structure in which secondary organic matter is decomposed in an aerobic sludge fermenter and then dehydrated to form a sludge cake. More specifically,

Referring to FIG. 1 in the attached drawing, the configuration will be explained by referring to a screen tank 10 that removes contaminants contained in raw water, and the raw water from which the contaminants of the screen tank 10 have been removed flows in to reduce the water quality concentration of sewage and wastewater. A flow rate control tank (20) installed at the rear of the screen tank (10) that homogenizes and controls the inflow of sewage and wastewater, and an upward flow control tank (20) that flows in the sewage and wastewater from the flow rate adjustment tank (20) and treats the sewage and wastewater. An upstream biological reactor (30), a sedimentation tank (40) that flows in the treated sewage and wastewater treated in the upstream biological reactor (30) and stores it for a certain period of time, and the treated sewage and wastewater stored in the sedimentation tank (40). A storage tank (50) for transporting and storing the treated sewage and wastewater stored in the storage tank (50), an advanced treatment tank (60) for advanced treatment of the treated sewage and wastewater stored in the storage tank (50), and an advanced treatment tank (60) for introducing highly treated treated water into the storage tank (50). The lower concentrated sludge settled in the lower part of the discharge tank 70 and the settling tank 40 is transferred to the flow control tank 20 and the upstream biological reactor 30, and then the remaining surplus sludge is transferred to improve aerobicity. It is characterized by being comprised of a sludge reforming tank (80). In the case of high-concentration wastewater, a plurality of Upflow Duel Bio Reactors (UDBR) (30), which additionally perform treatment processes for oxidation and decomposition of pollutants, nitrification and desilting of organic substances, phosphorus removal, and odor removal, are installed in succession. It can be installed.

According to the present invention, as shown in FIG. 4, the upflow biological reactor 30 includes a random anaerobic tank 32 with a stirring device 33 installed at the bottom, and fine bubbles for supplying oxygen necessary for wastewater treatment at the top. Its technical feature is that the upper aerobic tank 34, in which the membrane diffuser 47 that generates , is installed, is composed of an integrated structure. More specifically, as shown in FIG. 4, the upflow biological complex reaction tank 30 is composed of an upper aerobic tank 34 and a lower random anaerobic tank 32, and the lower random anaerobic tank 32 is located on the lower bottom surface. It consists of a sludge collector 35 having a sludge discharge part formed in the lower central part located in the direction, and a mixed liquid inflow part 36 provided on the upper side thereof.

The upper aerobic tank 34 is equipped with a membrane air diffuser 47 having an air supply pipe 48 and an air discharge pipe 48-1 for supplying external air to the lower side, and the upper inner side of the membrane air diffuser 47 A nozzle 49-1 is provided, and a microorganism transfer line 49 is provided and installed at one end of the nozzle 49-1 to transfer the aerated treated water to the sedimentation tank.

The mixed liquid inlet 36 includes a mixing chamber 31 for returning the sedimentation tank 40 to the outside of one side and supplying the mixed liquid from the flow rate control tank 20 to the upstream biological complex reaction tank 30, and the mixing chamber 31. It has a structure in which a mixed liquid transfer line (38) is connected to the mixed liquid transfer line, and a mixed liquid inlet (36) is connected to the mixed liquid transfer line, so that the mixed liquid flows into the UDBR alternating system (39) through the mixed liquid inlet (36). It is supplied into the installed optional anaerobic tank (32).

According to the present invention, as shown in FIG. 2, between the upflow dual bio reactor (UDBR) 30 and the sedimentation tank 40, the upflow dual bio reactor (UDBR: Upflow Duel Bio Reactor) ) A first unit tank (42) where the treated sewage and wastewater treated in (30) flows in and aerates it, and a second UDBR (44) which introduces the aerated treated water from the first unit tank (42) to induce a denitrification reaction. ) and a second unit 46 that aerates the water treated in the second UDBR 44 may be further configured. This configuration can provide a more efficient process for treating high-concentration sewage and wastewater.

According to the present invention, as shown in FIG. 3, a microfilter 62 for filtering fine sludge before transferring the treated water treated in the advanced treatment tank 60 to the discharge tank 70, and the microfilter It may be configured to further include a UV sterilizer (64) that sterilizes the filtrate filtered by (62). By further comprising the micro filter and UV sterilizer, it is possible to effectively remove insignificant solids that may be generated during the treatment process in the sewage and wastewater treatment water that is finally discharged from the advanced treatment tank using a treatment method such as pressure flotation. By treating the slight remaining odor and odor-generating factors with a UV sterilizer before discharging, it has the effect of preventing contamination when discharging treated sewage and wastewater.

According to the low-concentration and high-concentration sewage and wastewater treatment system using the upflow biological reactor according to the present invention, the present invention can also provide improved low-concentration and high-concentration sewage and wastewater treatment methods. This will be explained in detail with reference to the accompanying drawings 5 to 7.

When explaining the present invention according to FIGS. 5 and 6,

Landfill leachate, low- and high-concentration livestock wastewater, manure, food wastewater, industrial wastewater, sewage and wastewater, etc. using the Upflow Duel Bio Reactor (UDBR) according to the present invention. A screening step to remove contaminants by screening the raw wastewater flowing into the Duel Bio Reactor), a flow rate adjustment step to homogenize and neutralize the water quality concentration of the raw water from which the contaminants have been removed and to adjust the inflow amount and properties of the raw water, and the flow rate adjustment step. The raw water flowing in from the source is treated for oxidation and decomposition of pollutants, nitrification and desilting of organic substances, phosphorus removal, and odor removal in the Upflow Duel Bio Reactor (UDBR), which is composed of an optional anaerobic tank installed at the bottom and an aerobic tank at the top. The biological reaction step that performs the process, and the treated water on which the biological reaction step is completed are introduced into the sedimentation tank and separated from solid and liquid in the sedimentation tank for a certain period of time. Then, the treated water is transferred to the storage tank, and the lower concentrated sludge settled at the bottom is flow rate control tank ( 20) and returning it to the upstream biological reactor 30, transferring the remaining surplus sludge to a sludge reforming tank, undergoing reforming and dehydration, and then discharging the sludge cake. In the case of high-concentration wastewater, a plurality of Upflow Duel Bio Reactors (UDBR) (30), which additionally perform treatment processes for oxidation and decomposition of pollutants, nitrification and desilting of organic substances, phosphorus removal, and odor removal, are installed in succession. Installation steps can be added.

At this time, in the biological reaction step, the raw wastewater and returned sludge are mixed and transferred from the upflow dual bio reactor (UDBR) and the flow adjustment tank, and the NOx contained in the returned sludge from the sedimentation tank is returned to the front of the upflow biological reactor. By mixing and stirring with raw water in which DO has not yet been generated, denitrifying bacteria use the BOD in the raw water as a carbon source to denitrify it, and in the process, the corresponding BOD is removed.

In the process of decomposing organic matter in the sludge-like material, which undergoes a transfer corrosion reaction through coagulation, macromolecularization, polymerization, condensation, and polycondensation in the flow control tank, the organic nitrogen is converted to ammonia nitrogen in the process of decomposition by the microbial group. Due to the chelating effect, TN is reduced by being collected as constituent molecules of complex compounds or resistant compounds, and the remaining ammonia nitrogen that is not chelated is converted to NO ₂ and NO ₃ by NITROSOMONAS, NITROBACTER, etc., which are grown to a high concentration in the aeration tank contained in the returned sludge. It becomes oxidized.

Additionally, as organic matter decomposes in an upflow bioreactor where high concentrations of microorganisms live, the amount of sludge decreases. In upper aerobic conditions, the MLSS is operated at a high level of 8,000 to 15,000 ppm or more to maintain a high concentration of metabolites of the microorganisms living in a corrosive environment, thereby increasing the activity of useful bacteria and achieving high treatment efficiency.

The microbial community inhabits at a density corresponding to the food, and when the undegradable organic matter decomposes and disappears, the biological reaction is carried out in a stage where microorganisms that feed on the non-degradable organic matter reproduce and repeat generational changes.

Biologically active substances are what expedites this generational change. This is why MLSS is maintained at a high concentration.

The biological reaction step can be performed by repeating the process in multiple steps depending on the condition of the incoming sewage and wastewater. Preferably, the concentration of microorganisms inoculated into the raw water used in the biological reaction step is preferably maintained at a level of 15,000 to 20,000 mg/l.

At this time, the microorganisms used are those normally used in sewage and wastewater treatment.

The reason for contact with microorganisms in the flow adjustment tank stage is the function of metabolites and resynthetic products of various microorganisms with polyphenol aromatic nature contained in the returned sludge. Organic substances are coagulated, condensed, and polycondensed to become macromolecules. As sludge-like substances are created, organic matter is removed, and the microscopic hyphae of Pseudomonas members entangle the particles in which organic substances, inorganic substances, and cohesive metabolites contained in the incoming raw water have aggregated, and the particles gradually become larger, and alkali metals and alkaline earth metals are deposited in the returned sludge. The sludge-like material begins to stabilize as a corrosive reaction occurs that creates corrosion through polymerization, condensation, and polycondensation while forming complex or resistant compounds through the chelating effect with other metal ions and Plus ions such as NH ₄ , which are constituent molecules of odor. This removes bad odor.

Chelating organic substances contained in the returned sludge capture ionic substances contained in the original wastewater and remove them from the liquid phase. Various growth promoting substances and biologically active substances contained in the returned sludge activate the useful bacteria living in the raw water and increase their proliferation rate, making the beneficial bacteria the dominant species. Various antibiotic substances contained in the returned sludge are mixed with the raw water and stirred. It is also useful in removing organic TOC living in raw water, and at this time, microbial inoculation is performed to maintain the microbial concentration in the random anaerobic tank at 10,000 to 30,000 mg/l in the Upflow Duel Bio Reactor (UDBR). It's good that it happens.

According to the present invention, the raw wastewater preferably introduced in the flow rate adjustment step is purified by inducing microbial contact, and the inoculated microorganisms are the microbial group used in the secondary sedimentation tank and internal return, It is desirable to maintain the concentration of inoculated microorganisms in raw wastewater at 1,500 to 15,000 mg/l.

Bringing the sedimentation tank and internal return into contact with microorganisms in the flow control tank reduces the odor of inflow water by blocking early decay, and reduces the production of putrefactive microorganisms by allowing microbial oxidation and contact between the return water and raw water for the purpose of fundamentally reducing the primary source of odor. It can be said to be a pretreatment step to promote decomposition of residual contaminants in the Upflow Duel Bio Reactor (UDBR) after the microbial return reaction to the flow control tank.

At this time, the microorganisms inoculated are polyphenols contained in the returned sludge. As a result of the functions of metabolites and resynthetic products of various microorganisms with an aromatic nature, organic substances coagulate, condense, and polycondense, and the organic substances become macromolecules, creating sludge-like substances. As organic matter is removed, the microscopic hyphae of Pseudomonas members entangle the particles in which organic substances, inorganic substances, and cohesive metabolites contained in the incoming raw water are aggregated, and the particles gradually become larger, and alkali metals, alkaline earth metals, and other metal ions and foul odors are contained in the returned sludge. As the constituent molecules, such as NH ₄ and Plus ions, form complex or resistant compounds through the chelating effect, polymerization, condensation, and polycondensation occur, causing a corrosion reaction that creates corrosion, and the sludge-like material begins to stabilize and bad odors are removed.

According to the present invention, it is preferable to rotate the stirring impeller in a mesh or EX-metal shape at 0.1 to 10 m/min inside the lower random tank of the Upflow Duel Bio Reactor (UDBR) for the overall reaction.

If the rotation speed is less than 0.1 m/min, there is a disadvantage in that a blockage phenomenon occurs due to high concentration, and if the rotation speed exceeds 10 m/min, there may be a problem of forming an appropriate sludge blanket. The blanket is a process of filtration and high-concentration microbial contact decomposition of organic solids by maintaining biomass and SRT.

Depending on the properties of the incoming raw water, the wastewater, a diffuser, aerator, and surface aerator can be installed at the bottom of the aeration tank at the top, and a sedimentation tank is installed for solid-liquid separation after treatment of active microorganisms in the treated water flowing into the aeration tank. . At the bottom of the sedimentation tank, a piping line is installed through an internal return pump to return internal return water to the flow control tank and the upflow dual bio reactor (UDBR).

As described above, the treatment method according to the sewage and wastewater treatment system according to the present invention removes primary contaminants, decomposes odor and high-concentration wastewater through primary biological contact in the first flow adjustment tank, and then flows upward through a transfer pump. The influent flowing into the bottom of the bioreactor (UDBR: Upflow Duel Bio Reactor) flows upward from the bottom of the upflow bioreactor toward the top, and is decomposed and denitrified by random microorganisms inside the tank, and oxidized in the upper aerobic bioreactor. And the treated water that has completed decomposition is supplied into the connected sedimentation tank and separated into solid and liquid.

The treated water separated from solid and liquid is supplied to the storage tank, and after advanced treatment through a pressure flotation tank, it goes through a disinfection process and is used or discharged as recycled water. The concentrated sludge at the bottom of the sedimentation tank is supplied to the flow control tank through a return line.

Therefore, even if there is a change in the concentration of wastewater flowing into the Upflow Duel Bio Reactor (UDBR), the odor is partially eliminated and the load is reduced after decomposition through the primary biological reaction in the flow adjustment tank, and the transfer pump to the upflow bioreactor is used. After passing through a reaction tank with a high concentration of aerated anaerobic microorganisms, high-concentration wastewater can be decomposed to a low concentration and maintained at the highest level of microbial decomposition in the final aerobic tank, thereby treating odor and water from livestock wastewater, food wastewater, leachate, and sewage wastewater. Efficiency can be optimized and sludge reduction can be maximized.

In addition, the Upflow Duel Bio Reactor (UDBR) utilizes a high concentration of random, aerobic microorganisms by controlling the residence time and upflow reaction rate, thereby alleviating the load due to toxicity and overload of wastewater and decomposing odorous substances. It is possible to provide a system and a method using the system that guarantee the quality of treated water and reduce sludge, reduce operating costs and reduce odor.

The sewage and wastewater treatment system provided according to the present invention disclosed above removes odor and organic matter collected from the flow control tank in a facultative anaerobic state at the bottom of the upflow dual bio reactor (UDBR), which is a component of the system. Substances (ammonia nitrogen) are removed, and the process is repeated in single or multiple steps depending on the nature of wastewater containing high concentrations of nitrogen, such as livestock wastewater and manure, and the required treatment water quality, thereby improving treatment efficiency. In particular, the mesh or impeller of the agitator installed in the anaerobic tank is rotated at a slow speed to evenly stir the inside of the random tank to remove organic substances and nitrogen due to random conditions, and then a membrane diffuser or aerator or surface aerator is placed on the lower side of the upper aeration tank. It is a structure that oxidizes and decomposes pollutants in an aerobic state by supplying appropriate dissolved oxygen. It continuously and stably treats sewage wastewater containing high and low concentrations of nitrogen, such as livestock wastewater, excrement, food wastewater, and garbage leachate. It can be said that its advantages and characteristics lie in what it can do.

In other words, the sewage and wastewater treatment system provided in the present invention addresses the conventional problems of additional generation of bad odor through primary physical and chemical treatment, generation of significant bad odor during the concentration dehydration process as a treatment method for this, and generation of a large amount of sludge through pre-treatment. The method of the present invention was completed to improve the difficulty of operation, high concentration of mixed water, and odor generation by operating a digester for sludge reduction. The method of the present invention is a method that can treat the load that could not be removed at this time by eliminating the primary physical and chemical treatment process. This oxidizes and decomposes pollutants in the random microbial layer at the bottom of the flow control tank and the upflow dual bio reactor (UDBR: Upflow Duel Bio Reactor) and in the aerobic state of the upper aerobic tank, and has its technical characteristics.

An example of a sewage and wastewater treatment method using an upflow dual bio reactor (UDBR) according to the present invention, which has these technical features, will be described with reference to the attached drawings 5 and 6.

The attached drawing, Figure 5, is a comparison between the conventional method for treating high-concentration industrial wastewater before improvement and the method after improvement according to the present invention, and Figure 6 shows the low-concentration sewage and wastewater treatment method before and after improvement. This is a block diagram for comparison.

The present invention includes a random anaerobic tank (32) installed with a stirring device (33) at the bottom, and an upper aerobic tank (34) installed at the top with a membrane acid engine (47) that generates fine bubbles for supplying oxygen necessary for wastewater treatment. An optional and anaerobic tank (32) in which a sludge layer is formed is formed in an integrated upflow biological complex reactor to oxidize and decompose pollutants in an aerobic state, and then remove organic substances and nitrogen by denitrification in facultative anaerobic and anaerobic conditions. In addition, the removal of phosphorus is carried out simultaneously by removing sludge that has consumed excessive phosphorus, and the above process can be performed in one or multiple stages depending on the nature and required treated water quality of sewage and wastewater containing high concentrations of nitrogen, such as livestock wastewater and manure. By repeating, the treatment efficiency is improved, and in particular, the mesh or impeller of the agitator installed in the random/anaerobic tank is rotated at slow speed (please describe the rotation driving conditions such as the rotation speed of the impeller in detail). The inside of the anaerobic tank is stirred evenly, and a membrane diffuser is installed on the lower side of the upper aerobic tank (34) to supply oxygen necessary for treatment of sewage and wastewater.

That is, a screen tank in which a raw water inlet is formed and a screen is installed in the middle of it, a flow rate adjustment tank installed at the rear end of the screen tank to homogenize the water quality concentration of the sewage and wastewater and adjust the inflow amount of the sewage and wastewater, and the sewage and wastewater Upflow Duel Bio Reactor (UDBR), which can properly treat inflow, decomposes contaminants flowing in from the lower arbitrary/anaerobic tank and the upper aerobic tank, and treats water from the sedimentation tank by discharging or transferring it through the discharge tank. After advanced treatment (pressure flotation, etc.), it is reused and discharged, and the bottom concentrated sludge is transferred to the flow control tank and the random/anaerobic tank below the upstream biological reactor, and the remaining surplus sludge is moved to an aerobic improvement tank and stored. The improved sludge is dehydrated. This creates a structure in which a sludge cake is formed and then discharged.

Therefore, livestock wastewater, food wastewater, leachate, industrial wastewater, and sewage that flow into the screen tank through the raw water inlet are transferred to the flow control tank (primary biological reaction tank) after relatively bulky contaminants, sediment, and suspended materials are removed by the screen. ) flows into the Upflow Duel Bio Reactor (UDBR), decomposes, and then transfers to the sedimentation tank.

At this time, the flow control tank (primary biological reactor) is a mixing homogenization and biological contact process of the return sludge from the sedimentation tank and raw wastewater to ensure proper treatment of various wastewaters inside the upflow dual bio reactor (UDBR: Upflow Duel Bio Reactor). It decomposes and collects pollutants and odors from incoming raw water to reduce the concentration of contamination and remove odors, and then flows a certain amount into the Upflow Duel Bio Reactor (UDBR).

In addition, the various wastewaters that caused the primary biological reaction in the flow control tank flowing into the upflow dual bio reactor (UDBR) flow into the random/anaerobic tank at the bottom of the upflow biological reactor and are exposed to high concentrations of microbial contact. It decomposes in contact with high concentrations of microorganisms and stays and decomposes inside the upper aerobic tank.

At this time, the heavy sludge is decomposed and reduced by the facultative anaerobic and anaerobic sludge layer formed inside the random/anaerobic tank, and passes through the aerobic microbial layer of the upper aerobic tank again, where it is oxidized and decomposed and continues through the outlet to the next step. It is transferred to oxic & anoxic sedimentation tanks. At this time, the Upflow Duel Bio Reactor (UDBR) is continuously treated through the lower random/anaerobic tank to the upper aerobic tank. During the aeration time, the high-concentration wastewater and sewage inside the aeration tank are mixed with activated sludge, aerated, and decomposed. do. And the bottom-concentrated sludge that finally settles is returned to the flow control tank and upflow dual bio reactor (UDBR). At this time, it is mixed with raw water to remove the odor of raw water and undergo primary decomposition, and the excess sludge is sent to the aerobic sludge improvement tank. It is transported and goes through an aerobic fermentation process, secondary sludge reduction, and then a dehydration process. At this time, a sludge cake with optimized moisture content can be obtained, and the sludge cake is dehydrated and then shipped out.

As described above, the present invention provides an efficient treatment method for landfill leachate, livestock manure wastewater, industrial wastewater (food and organic wastewater), and sewage and wastewater containing high concentrations of odor, thereby achieving effects such as odor reduction and sludge reduction. Treatment methods can be provided.

The method according to the present invention avoids primary chemical treatment depending on site conditions and aims to reduce sludge generated during the chemical treatment process and block widespread odor during the process. It also removes high-concentration odor-generating wastewater from the wastewater itself. (Livestock wastewater, manure, industrial wastewater, sewage wastewater) is treated by mixing with the return water and flowing into the flow control tank, where it is first decomposed and reduced, and then flows into the bottom of the Upflow Duel BioReactor (UDBR) to produce a high concentration of random microorganisms. As it passes through the layer, odorous substances are removed, pollutants are decomposed and oxidized, and residual pollutants are decomposed in the upper aerobic tank. The denitrification and nitrification of nitrogen (N) inside the random tank and the aerobic tank decomposes the decomposed wastewater and then flows into the sedimentation tank. As a structure, after solid-liquid separation is performed in the sedimentation tank, the supernatant water is used or discharged as recycled water after advanced treatment, and the lower concentrated sludge is passed through a return line to the flow adjustment tank, which is the first inlet, and an upflow dual bio reactor (UDBR). ) It is a treatment method that is structured to primarily remove high-concentration odorous substances and various pollutants from wastewater that are returned.

In particular, the present invention forms a lower layer defining a typical anaerobic tank on one side of an upflow dual bio reactor (UDBR), but forms an outlet to the upper aerobic tank. By installing a stirring system that can be mixed with a stirrer, the N₂ gas during the denitrification process by the flow-through anaerobic sludge layer can be easily desorbed and discharged. The inside of the aeration tank installed at the top is a membrane acid with a fine air outlet at the bottom of the aeration tank. The main purpose is to oxidize and decompose pollutants by maintaining an aerobic state with air supplied through (aerator, surface aeration device) depending on site conditions.

The Upflow Duel Bio Reactor (UDBR) is a bioreactor that contains microorganisms in a biological reactor to deal with changes in the concentration of high-concentration wastewater or nutrients such as nitrogen (N) or phosphorus (P) or organic sewage and wastewater. Upflow Duel Bio Reactor (UDBR) using the lower random anoxic layer biological reactor and the upper aerobic tank, which can maintain high concentration, has high treatment efficiency, simple treatment process, and reduces operating costs. High-concentration wastewater and wastewater It is possible to provide a wastewater treatment system and treatment method.

Below, the composition and operation method of the low- and high-concentration sewage and wastewater treatment system using the upflow biological reactor according to the present invention and the wastewater treatment method using the same will be described in more detail. The present invention is aimed at ① primary physical and chemical treatment. In case of low concentration, a sedimentation tank can be installed directly on the discharge side of the Upflow Duel Bio Reactor (UDBR), which carries out the unremoved pollutant load. If necessary, an aeration tank and a random sedimentation tank can be installed additionally in case of high concentration wastewater. It is characterized by the ability to install multiple or more Upflow Duel Bio Reactors (UDBR) in succession.

The Upflow Duel Bio Reactor (UDBR) performs the combined functions of primary sedimentation tank/anoxic tank/random tank/aeration tank in the sewage and wastewater treatment system of the present invention, and anoxic, random tank naturally formed according to operating conditions. Under a crude (denitrification) or aerobic (fermentation) atmosphere, organic substances containing nutrients such as nitrogen (N) and phosphorus (P) and non-decomposable substances, such as livestock manure, food wastewater, and high-concentration industrial wastewater flowing into the inner lower part, contain high-concentration odors. As sewage and wastewater flows upward, pollutants and odors are removed. In addition, by flowing into the Upflow Duel Bio Reactor (UDBR) without primary chemical treatment, it is possible to reduce fundamental odorous substances and suppress the amount of sludge generated, and is a system that can treat wastewater of high and low concentrations in a stable manner.

At this time, the removal reaction and principle of pollutants in aerobic, anoxic, and random conditions are as follows.

Nitrogen in wastewater such as livestock wastewater, manure, and food wastewater is organic nitrogen (0rg-N), ammonia nitrogen (NH₃-N), nitrite nitrogen (N0₂-N), and nitrate nitrogen (N0₃-N). It exists in the form of, and the main forms in wastewater such as untreated livestock wastewater and manure are organic nitrogen and ammonia nitrogen. In the early stages of contamination, it mainly exists as ammonia nitrogen, but as contamination recovers, a nitrification process occurs in which it is oxidized back to nitrate nitrogen in an aerobic state.

In wastewater treatment processes such as livestock wastewater and manure, biological nitrification is accomplished by two species: Nitrosomonas, which oxidizes ammonia nitrogen to nitrite nitrogen, and Nitrobacter, which oxidizes nitrite nitrogen to nitrate nitrogen. These microorganisms are autotrophic organisms because they obtain energy from inorganic compounds while heterotrophic organisms obtain energy by oxidizing organic compounds.

Nitrification of ammonia nitrogen occurs in two steps. The first step is the conversion of ammonia nitrogen to nitrite nitrogen by Nitrosomonas, and the second step is the conversion of nitrite nitrogen to nitrate nitrogen by Nitrobacter. These two steps are expressed in chemical formulas:

NH ₄ ⁺ + 1.50₂ → N0 ₂ ^- + H ₂ 0 +2H ⁺

N0 ₂ ^- + 0.50₂ → N0₃

In the above reaction equation, oxygen is the electron carrier for the biological oxidation of ammonia nitrogen and nitrite nitrogen. Oxygen is the only electron carrier available to Nitrosomonas and Nitrobacter. Therefore, aerobic conditions are essential for the nitrification process to proceed, and the denitrification process is to remove oxidized nitrate ions by reducing them to N0, N20, and N2.

Microorganisms involved in denitrification include Achromobacter, Bacillus, Brevibactertium, Enterobacter, Lactobacillus, Micrococcus, Paracalobactrum, Pseudomonas, and Sprirllum. These microorganisms are heterotrophic organisms. They are diverse as aerobic, facultative anaerobic, and anaerobic, but more than 80% of those existing in nature are known to be facultative anaerobic. These microorganisms use oxygen as an electron carrier to oxidize organic compounds, and in the absence or lack of oxygen, they perform anaerobic respiration. In this case, chemically bonded oxygen (N0 ₃ ^- , S0 ₄ ^2-, etc.) is used as the final electron acceptor. In this way, when there is no dissolved oxygen (molecular oxygen) and only oxygen in a chemically bound form is present, it is called an anoxic condition to distinguish it from an anaerobic condition. In anoxic conditions, the presence of oxygen controls the oxygen function in the respiration of facultative anaerobic microorganisms. This is because much more energy is generated when using dissolved oxygen rather than chemically bound oxygen as the final electron acceptor, so facultative anaerobic (anaerobic) microorganisms This is because they prefer dissolved oxygen. Therefore, for denitrification, dissolved oxygen (molecular oxygen) must not exist.

All processes for biological phosphorus removal maintain periodic anaerobic/aerobic conditions in the reaction tank, that is, phosphorus is removed using phosphorus release and luxury uptake.

Phosphorus removal microorganisms (PA0S) use the energy generated when decomposing inorganic phosphorus (Poly-p) in cells under anaerobic conditions to ingest organic acids such as acetic acid and then convert them into PHA (Poly Hydroxy Acetate). , At this time, the free orthophosphoric acid (0rtho-p) is released into the solution, and this phenomenon is called phosphorus release. When changing from anaerobic conditions to aerobic conditions, phosphorus-removing microorganisms decompose the stored PHA to synthesize ATP (Adenosine Tri-Phosphate) and use this to ingest orthophosphoric acid from the solution, synthesize it into inorganic phosphorus and store it in cells.

Also, an important fact is that, as excessive intake of phosphorus occurs in aerobic conditions, the presence of substances such as electron acceptors (N0 ₃ ^- ) other than oxygen hinders the release of phosphorus even in the absence of oxygen.

In order to release phosphorus from an anaerobic tank efficiently, N0 ₃ ^- must be removed.

In order to remove nitrogen in mainstream processes such as the A²/0 process, it is necessary to internally recycle the sludge mixture from the aeration tank containing nitrate nitrogen to the anoxic tank, and solid-liquid separation in the final sedimentation tank. Coarse sludge requires sludge transfer (return activated sludge: RAS) at the front end of the process to replenish the amount of microorganisms in each reaction tank or to return the sludge to the anaerobic tank. In the present invention, it is filtered by the sludge layer formed in the anaerobic tank and stored in the aeration tank (70). ) can be operated by maintaining a high sludge concentration (high concentration of microorganisms), so land is saved when constructing wastewater treatment facilities such as livestock wastewater and excrement, construction costs are low, and sewage with low organic matter concentration and C/N ratio as well as high concentration Sewage and wastewater such as livestock wastewater and manure containing nitrogen, phosphorus and organic matter can also be effectively treated.

In other words, an inflow pipe is installed to supply the raw water that has come into primary biological contact with the sludge returned from the sedimentation tank to the bottom of the Upflow Duel BioReactor (UDBR), and the conveyed water flowing into the optional tank denitrifies and decomposes high-concentration substances. After processing, it moves to the aerobic tank where fine air is supplied to the upper part. In addition, a scraper is installed at the bottom of the inner central axis of the upflow bioreactor so that the wastewater influent + sediment tank return water is injected and distributed to the center of the bottom of the upflow dual bioreactor (UDBR), and smooth degassing of the lower random microbial layer is achieved. And a stirring device is being installed to improve processing efficiency. Additionally, an excess sludge discharge pump is installed in the internal discharge line where sludge would be excessive in the upflow bioreactor. Here, in order to automatically operate the discharge pump, a detection device that detects the height of the sludge layer and an ORP measurement device are installed in the upflow bioreactor (UDBR: Upflow Duel BioReactor) to measure the treatment efficiency and operational efficiency. By increasing the , stable processing efficiency can be obtained. In addition, efficiency can be maximized by installing an MLSS concentration meter in the upper aeration tank to detect and operate within a certain concentration range.

As explained above, in the conventional wastewater treatment device using general activated sludge, the concentration of microorganisms changes depending on the concentration of the returned sludge, but the system and method provided in the present invention perform the return of the sedimentation tank to the flow adjustment tank (primary). By using an aerobic tank to decompose primary organic matter and decompose odorous components and then feeding them into an upflow bioreactor (UDBR: Upflow Duel BioReactor), the condition in the tank can be maintained at its best. Therefore, there is an advantage in that the microorganisms in the tank can be maintained at a high level even when the concentration of the influent is high or low. In addition, in order to treat high-concentration influent water, conventionally, external dilution water or primary chemical treatment is used to lower the concentration of influent water before treatment, which makes the treatment process complicated and difficult to prevent odor and additional sludge generated from the treatment device. Although there were some disadvantages, this method has the advantage of simplifying the treatment process because it does not involve chemical treatment, fundamentally suppressing odor, and reducing civil complaints and operating costs by reducing the primary physical and chemical treatment process.

In the sewage and wastewater treatment system according to the present invention, odor molecules or sources of odor are coagulated into polymers in a flow control tank where sediment return sludge and raw water are mixed in an upflow dual bioreactor (UDBR), and odor substances are collected in the structure. The odor is eliminated depending on the catalytic action of the chelating compound.

In other words, in the Upflow Duel Bio Reactor (UDBR) treatment method, the 'microorganisms' returned by the secondary sedimentation tank are returned and circulated to the odor source flow rate adjustment tank, and the odor components absorbed and dissolved in the wastewater are absorbed into the biodegradation process substances in the water. It is absorbed and decomposed to become nutrients for microorganisms, and the odor is oxidized and decomposed.

in other words,

1. When odor components (GAS) come into contact with water, the odor components first dissolve in the water.

2. Odor components dissolved in water are immediately decomposed and removed from water by combining with or adsorbing decomposition precursors or microbial metabolites.

3. The adsorbed odor components are consumed as an energy source by microorganisms and used to proliferate microorganisms and their metabolites.

Meanwhile, E. coli, putrefactive bacteria, staphylococci, etc. are suppressed and sterilized by the decomposition substances contained, and putrefaction products such as ammonia, amines, and squid, which are harmful to living organisms, are suppressed. When the corrosion itself (PH 2.6 or less) is leached out and enzymes such as urease, which generate basic odors in feces and wastewater, are produced, the source of the odor is cut off. In addition, self-condensation, which occurs when corrosion is below pH 3, or hydrogen peroxide generated when the condensate and excrement combine, and basic odors (ammonia, amine, etc.) produced by active enzymes such as hydronium through divalent iron oxide ion reaction are acidic. Odors (hydrogen sulfide) and neutral odors (methyl melcaptan, methyl sulfite, etc.) are oxidized and deodorized.

It prevents the generation of bad odor by inhibiting the action of proteolytic enzymes, especially furotease and peptidase, and by interfering with the production of protein intermediates or final products. On the other hand, by suppressing the survival of the buffet, the generation of odorous substances is eliminated, and odorous substances are deodorized by oxidation of the aforementioned production enzymes, so treated water and produced sludge do not decompose or deteriorate even if left for a long time. Therefore, the occurrence of maggots and flies disappears. Therefore, the generation of bad odors from related facilities (sewage wastewater, food processing plants, livestock facilities, factory wastewater, etc.) is largely suppressed.

10: Screen Joe
20: Flow adjustment tank
30: Upflow biological reactor
40: Sedimentation tank
50: Retention tank
60: Advanced treatment tank
70: Discharge tank
80: Sludge improvement tank
90: Dehydrator

Claims (8)

A screen tank (10) for removing contaminants contained in raw water, and raw water from which contaminants in the screen tank (10) are removed flows in to improve the water quality of high-concentration livestock wastewater, excrement, food wastewater, landfill leachate, and low-concentration sewage and wastewater from industrial wastewater. A flow rate control tank (20) installed at the rear of the screen tank (10) to homogenize the concentration and control the inflow amount of sewage and wastewater, and treat the sewage and wastewater by inflowing the sewage and wastewater from the flow rate adjustment tank (20). an upflow biological reactor (30), and a sedimentation tank (40) that flows in the high-concentration and low-concentration sewage and wastewater treated water treated in the upflow dual bioreactor (UDBR: Upflow Duel Bio Reactor) (30) and stores it for a certain period of time; , a storage tank 50 for transferring and storing the sewage and wastewater treatment water stored in the sedimentation tank 40, an advanced treatment tank 60 for advanced treatment of the sewage and wastewater treatment water stored in the storage tank 50, and the altitude. A discharge tank (70) that flows in and discharges highly treated treated water from the treatment tank (60), and a flow control tank (20) and an upstream biological reaction tank (30) for bottom concentrated sludge settled in the lower part of the sedimentation tank (40). It is composed of a sludge improvement tank (80) that transfers the remaining surplus sludge and improves it aerobically,
A first unit tank 42 and a first unit tank 42 in which the treated sewage and wastewater treated in the upstream biological reactor 30 flows in and is aerated between the upstream biological reactor 30 and the sedimentation tank 40. It further consists of a secondary UDBR (44) that introduces the aerated treated water to induce a denitrification reaction and a second unit tank (46) that aerates the treated water treated in the secondary UDBR (44),
In the case of high-concentration wastewater, more than one Upflow Duel Bio Reactor (UDBR) (30) that performs oxidation and decomposition of pollutants, nitrification and desilting of organic substances, phosphorus removal, and odor removal treatment processes can be installed in succession. It is possible
The upflow complex biological reaction tank (30) is composed of an upper aerobic tank (34) at the top and an optional anaerobic tank (32) at the bottom. The inflow mixed liquid flows into the optional anaerobic tank (32) through a mixed liquid transfer line connected to the mixed liquid inlet (36), and a microbial transfer line (49) is installed in the upper aerobic tank (34) to transfer the treated water to the sedimentation tank (40). The air flowing in from the air supply pipe (48) generates fine bubbles through the embrane acid organ (47) and is supplied to the upper aerobic tank (34). In the upper aerobic tank, various contaminants in the wastewater are oxidized and decomposed and stored in the optional anaerobic tank (32). The mixture flows in and is mixed in the UDBR stirring system (39) by the rotational drive of the stirring device (33). Organic substances, nitrogen, and phosphorus are removed from the mixture by denitrification in the optional anaerobic tank (32), and the sludge is sent to the sludge collector (35). A treatment system for high-concentration landfill leachate, livestock wastewater, manure, food wastewater, industrial wastewater, and low-concentration wastewater using an upflow complex biological reactor that is stored and discharged. delete delete delete delete delete delete delete