CN212894341U - HIT sewage treatment container module reactor - Google Patents
HIT sewage treatment container module reactor Download PDFInfo
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- CN212894341U CN212894341U CN202021175362.1U CN202021175362U CN212894341U CN 212894341 U CN212894341 U CN 212894341U CN 202021175362 U CN202021175362 U CN 202021175362U CN 212894341 U CN212894341 U CN 212894341U
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Abstract
A HIT sewage treatment container module reactor relates to the technical field of sewage treatment. The utility model discloses a solve MBBR sewage treatment plant's backward flow mixed liquid and easily enter anaerobism pond, nitrate destroy the anaerobism state in anaerobism pond, influence the dephosphorization efficiency and the effect water purification effect of system and MBR sewage treatment plant total nitrogen and total phosphorus can not stabilize up to standard problem. A HIT sewage treatment container module reactor comprises an anaerobic zone, an anoxic zone, an aerobic zone, a precipitation zone, a solid-liquid separation zone, a clear water zone and an equipment room, wherein the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the aerobic zone, the aerobic zone is communicated with the precipitation zone, the precipitation zone is communicated with the solid-liquid separation zone, the solid-liquid separation zone is communicated with the clear water zone, and the equipment room is arranged on one side of the clear water zone. The utility model discloses can obtain a HIT sewage treatment container module reactor.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to HIT sewage treatment container module reactor.
Background
The MBBR (moving Bed Biofilm reactor) process increases the biomass and the biological species in the reactor by adding a certain amount of suspension carriers into the reactor, thereby improving the treatment efficiency of the reactor. As the density of the filler is close to that of water, the filler is completely mixed with the water during aeration, and the environment for the growth of microorganisms is three phases of gas, liquid and solid. The collision and shearing action of the carrier in water makes air bubbles finer, and the utilization rate of oxygen is increased. In addition, each carrier has different biological species inside and outside, anaerobic bacteria or facultative bacteria grow inside, and aerobic bacteria grow outside, so that each carrier is a micro-reactor, nitrification reaction and denitrification reaction exist simultaneously, and the treatment effect is improved. At present, the structure of the conventional MBBR sewage treatment device occupies a large space, so that the investment cost is high, the construction and development of the MBBR process are delayed, in addition, the backflow mixed liquid of the MBBR sewage treatment device easily enters the anaerobic tank, and the nitrate in the backflow mixed liquid can destroy the anaerobic state of the anaerobic tank, so that the dephosphorization efficiency and the effect water purification effect of the system are influenced. MBR (Membrane Bio-Reactor) has the characteristics of small land occupation, high sludge concentration and low sludge yield, but has many problems in popularization and application because MBR Membrane operation is complex, total nitrogen and total phosphorus in effluent can not stably reach the standard, and the operation cost is 30-50% higher than that of MBBR. Under the background, there is a need to improve and optimize the existing MBBR and MBR two common sewage treatment processes and devices to solve the existing technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve MBBR sewage treatment plant's backward flow mixed liquid and easily enter anaerobism pond, nitrate destroy anaerobism state in anaerobism pond, influence the dephosphorization efficiency and the effect water purification effect of system and MBR sewage treatment plant total nitrogen and total phosphorus can not stabilize up to standard problem, and provide a HIT sewage treatment container module reactor.
A HIT sewage treatment container module reactor comprises an anaerobic zone, an anoxic zone, an aerobic zone, a precipitation zone, a solid-liquid separation zone, a clear water zone and an equipment room, wherein the anaerobic zone is communicated with the anoxic zone, the anoxic zone is communicated with the aerobic zone, the aerobic zone is communicated with the precipitation zone, the precipitation zone is communicated with the solid-liquid separation zone, the solid-liquid separation zone is communicated with the clear water zone, and the equipment room is arranged on one side of the clear water zone; the corner of the anaerobic zone is provided with a water inlet pipe, one side of the anaerobic zone is provided with a water inlet distribution channel, the water outlet end of the water inlet pipe is communicated with the water inlet distribution channel, the anaerobic zone is internally provided with a plurality of anaerobic zone baffle plates, the anoxic zone is internally provided with a plurality of anoxic zone baffle plates, the front end of the settling zone is provided with an energy dissipation zone, the rear end of the settling zone is provided with a water outlet weir groove which is communicated with a water outlet weir, the water outlet end of the water outlet weir is a water outlet, the water outlet is communicated with a solid-liquid separation zone, the solid-liquid separation zone is internally provided with a solid-liquid separation device, two blowers are arranged in the equipment room, one blower is communicated with an air stripping pipe, the air stripping pipe is arranged at the bottoms of the aerobic zone and the settling zone and is communicated with the water inlet ends of a plurality of air stripping return pipes which are respectively arranged at the bottoms of the anoxic zone, the aerobic zone and the settling zone, the anaerobic zone sludge gas stripping backflow pipe is arranged in the anaerobic zone, the mixed liquid gas stripping backflow pipe is arranged in the anaerobic zone, the water inlet end of the anaerobic zone sludge gas stripping backflow pipe is communicated with the anaerobic zone, the water outlet end of the anaerobic zone sludge gas stripping backflow pipe is communicated with the water inlet distribution channel, the gas outlet of the gas source pipe A is arranged in the port of the water inlet end of the anaerobic zone sludge gas stripping backflow pipe, the water inlet end of the mixed liquid gas stripping backflow pipe is communicated with the aerobic zone, the water outlet end of the mixed liquid gas stripping backflow pipe is communicated with the anaerobic zone, and the gas outlet of the gas source pipe B is arranged in the port of the water inlet end of the mixed liquid gas stripping backflow pipe.
The utility model has the advantages that:
the utility model relates to a HIT sewage treatment container module reactor, baffle plates are arranged in an anaerobic zone and an anoxic zone to keep the shape of granular sludge, and a solid-liquid separation facility is arranged in a settling zone, after two improvements, the HIT process can keep the advantage of high sludge concentration of an MBR process, namely the high sludge concentration of 5000-8000 mg/L, and the water purification effect is superior to that of the traditional MBBR and MBR processes; the reflux mixed liquor flows back to the anoxic zone, so that the nitrate can be prevented from entering the anaerobic zone, and the anaerobic state of the anaerobic zone is damaged to influence the dephosphorization efficiency and effect of the system. Meanwhile, nitrate reacts with organic matters in the anaerobic zone rapidly to perform denitrification, synchronous nitrogen and phosphorus removal is realized, and especially when the concentration of nitrogen and phosphorus in the treated sewage is high (TP is greater than 3mg/L and TN is greater than 40mg/L), biological nitrogen and phosphorus removal treatment can be performed efficiently and economically by operating the HIT process.
Compare with current single A2O technology of actual sewage treatment plant operation, the utility model relates to a HIT sewage treatment container module reactor has great promotion to the effect of getting rid of pollutant, wherein all has fine effect to COD, ammonia nitrogen, goes out water COD below 40mg/L (actual domestic sewage, treatment scale 120m3D), ammonia nitrogen is below 1 mg/L; the removal effect of TN and TP is better than the treatment effect of the single A2/O process operated by the actual sewage treatment plant.
Two, the utility model discloses combine MBBR and MBR technological advantage, provide an adopt hydrophilic polyurethane filler, standardized design, equipment, modular, but batch production, practice thrift space and investment cost's HIT sewage treatment container module reactor, through the matching of control module reactor quantity realization with the water yield scale, and then realize that standardization, operation standardization, the water purification effect of dispersion sewage treatment facility construction are more optimized. The utility model discloses carry out sewage treatment in container module reactor, can practice thrift space and investment cost to can realize dispersing the quick construction and the high-efficient operation of sewage factory, go out water quality of water good and move stably.
The utility model discloses can obtain a HIT sewage treatment container module reactor.
Drawings
FIG. 1 is a schematic side view of an example HIT sewage treatment container module reactor;
FIG. 2 is a schematic top view of an example HIT sewage treatment container module reactor;
FIG. 3 is a cross-sectional view of a HIT sewage treatment container module reactor according to an embodiment;
FIG. 4 is a schematic isometric view of an example HIT sewage treatment container module reactor;
FIG. 5 is a test chart of COD removal effect of HIT sewage treatment container module reactor, wherein ■ represents the test value of water inlet and ● represents the test value of water outlet;
FIG. 6 is a test chart of the removal effect of the HIT sewage treatment container module reactor on ammonia nitrogen, wherein ■ represents a water inlet test value, and ● represents a water outlet test value;
FIG. 7 is a graph showing the effect of the HIT sewage treatment container module reactor on TN removal in accordance with the example, wherein ■ represents the water inlet test value and ● represents the water outlet test value;
FIG. 8 is a graph showing the effect of the HIT sewage treatment container module reactor on TP removal in accordance with one embodiment, wherein ■ represents the water inlet test value and ● represents the water outlet test value.
Wherein, 1 is an anaerobic zone, 2 is an anoxic zone, 3 is an aerobic zone, 4 is a settling zone, 5 is a solid-liquid separation zone, 6 is a clear water zone, 7 is an equipment room, 11 is a water inlet pipe, 12-1 is an anaerobic zone baffle plate, 12-2 is an anoxic zone baffle plate, 13 is a microporous aeration disc, 14 is an energy dissipation zone, 15 is a water outlet weir groove, 16 is an air stripping return pipe, 16-1 is an air stripping return groove, 17 is a mixed liquid air stripping return pipe, 18 is a filter screen, 19 is a water outlet, 20 is a sludge calandria, 21 is a 304 filler intercepting net, 22 is an air stripping pipe, 23 is an water outlet weir, 24 is an anoxic zone sludge air stripping return pipe, 25 is an inlet water distribution channel, 26 is an air source pipe A, and 27 is an air source pipe B.
Detailed Description
The first embodiment is as follows: this embodiment mode a HIT sewage treatment container module reactor, this reactor are container formula module equipment, and length and width height is 3m (or is the multiple of 3 m), 2.8m and 2.9m respectively, is convenient for production, transportation and operation management.
The reactor comprises an anaerobic zone 1, an anoxic zone 2, an aerobic zone 3, a precipitation zone 4, a solid-liquid separation zone 5, a clean water zone 6 and an equipment room 7, wherein the anaerobic zone 1 is communicated with the anoxic zone 2, the anoxic zone 2 is communicated with the aerobic zone 3, the aerobic zone 3 is communicated with the precipitation zone 4, the precipitation zone 4 is communicated with the solid-liquid separation zone 5, the solid-liquid separation zone 5 is communicated with the clean water zone 6, and the equipment room 7 is arranged on one side of the clean water zone 6; a water inlet pipe 11 is arranged at the corner of the anaerobic zone 1, a water inlet distribution channel 25 is arranged at one side of the anaerobic zone 1, the water outlet end of the water inlet pipe 11 is communicated with the water inlet distribution channel 25, a plurality of anaerobic zone baffle plates 12-1 are arranged in the anaerobic zone 1, a plurality of anoxic zone baffle plates 12-2 are arranged in the anoxic zone 2, an energy dissipation zone 14 is arranged at the front end of the settling zone 4, a water outlet weir groove 15 is arranged at the rear end of the settling zone 4, the water outlet weir groove 15 is communicated with a water outlet weir 23, the water outlet end of the water outlet weir 23 is a water outlet 19, the water outlet 19 is communicated with a solid-liquid separation zone 5, a solid-liquid separation device is arranged in the solid-liquid separation zone 5, two air blowers are arranged in the equipment room 7, one air blower is communicated with an air stripping pipe 22, the air stripping pipe 22 is arranged at the bottoms of the aerobic zone 3 and the settling zone 4 and is communicated with the water, At the bottom of the aerobic zone 3 and the sedimentation zone 4, the water outlet end of the gas stripping return pipe 16 is communicated with a water inlet distribution channel 25 through a gas stripping return groove 16-1, a gas source pipe A26 and a gas source pipe B27 are arranged on the gas stripping pipe 22, an anoxic zone sludge gas stripping return pipe 24 and a mixed liquid gas stripping return pipe 17 are arranged between the anaerobic zone 1 and the anoxic zone 2, the water inlet end of the anoxic zone sludge gas stripping return pipe 24 is communicated with the anoxic zone 2, the water outlet end of the anoxic zone sludge gas stripping return pipe 24 is communicated with the water inlet distribution channel 25, the gas outlet of the gas source pipe A26 is arranged in the port of the water inlet end of the anoxic zone sludge gas stripping return pipe 24, the water inlet end of the gas stripping return pipe 17 is communicated with the aerobic zone 3, the water outlet end of the mixed liquid return pipe 17 is communicated with the anoxic zone 2, and the gas outlet of the gas source pipe B27.
The energy dissipation zone mainly eliminates aeration kinetic energy and micro bubbles through large-area flat plate zone buffering, ensures that the sewage flow rate entering the bottom of the sedimentation zone 4 is low and does not contain bubbles, so as to avoid impacting sludge at the bottom.
When the HIT sewage treatment container module reactor is used for treating sewage, the hydraulic retention time of the sewage in the aerobic zone 3 is 4.0-5.0 hours, the hydraulic retention time of the anaerobic zone 1 is 1.0-1.25 hours, and the hydraulic retention time of the anoxic zone 2 is 2.0-2.1 hours.
The beneficial effects of the embodiment are as follows:
according to the HIT sewage treatment container module reactor, the baffle plates are arranged in the anaerobic zone 1 and the anoxic zone 2 to keep the granular sludge shape, and the solid-liquid separation facility is arranged in the settling zone 4; the reflux mixed liquor flows back to the anoxic zone 2, so that the nitrate can be prevented from entering the anaerobic zone 1, and the anaerobic state of the anaerobic zone 1 is damaged to influence the dephosphorization efficiency and effect of the system. Meanwhile, nitrate reacts with organic matters in the anaerobic zone 1 rapidly to perform denitrification, so that synchronous nitrogen and phosphorus removal is realized, and especially when the concentration of nitrogen and phosphorus in the treated sewage is high (TP is greater than 3mg/L and TN is greater than 40mg/L), the HIT process can be operated to perform biological nitrogen and phosphorus removal treatment efficiently and economically.
Compared with the single A2/O process operated by the existing actual sewage treatment plant, the HIT sewage treatment container module reactor of the embodiment has great promotion on the removal effect of pollutants, wherein, the HIT sewage treatment container module reactor has good effect on COD and ammonia nitrogen, and the COD of the effluent is below 40mg/L (actual domestic sewage, treatment scale 120 m)3D), ammonia nitrogen is below 1 mg/L; the removal effect of TN and TP is better than the treatment effect of the single A2/O process operated by the actual sewage treatment plant.
Secondly, this embodiment combines MBBR and MBR technological advantage, provides one kind and adopts hydrophilic polyurethane filler, standardized design, equipment, modularization, but batch production, practice thrift space and investment cost's HIT sewage treatment container module reactor, realizes the matching with the water yield scale through control module reactor quantity, and then realizes the standardization of decentralized sewage treatment facility construction, operation standardization, water purification effect is more optimized. The embodiment carries out sewage treatment in the container module reactor, can save space and investment cost, can realize the rapid construction and high-efficiency operation of dispersed sewage plants, and has good effluent quality and stable operation.
The second embodiment is as follows: the present embodiment differs from the present embodiment in that: a filter screen 18 is arranged between the water inlet pipe 11 and the anaerobic zone 1.
Other steps are the same as those in the first embodiment.
The third concrete implementation mode: the first or second differences from the present embodiment are as follows: the solid-liquid separation device is an ultrafiltration membrane, a filter cloth filter or a sand filter.
The other steps are the same as those in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment and one of the first to third embodiments is as follows: and a sludge discharge pipe 20 is also arranged at the water outlet end of the gas stripping return pipe 16.
The other steps are the same as those in the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the bottom of the aerobic zone 3 is provided with a plurality of microporous aeration discs 13, and the other blower in the equipment room 7 is communicated with the microporous aeration discs 13.
The other steps are the same as those in the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is as follows: and a flowmeter, an automatic control cabinet, a dosing device and a disinfection device are also arranged in the equipment room 7.
The other steps are the same as those in the first to fifth embodiments.
The seventh embodiment: the present embodiment is different from the first or sixth embodiment in that: the anaerobic zone 1 is divided into a plurality of compartments by the baffle plates 12-1 of the anaerobic zone, the anoxic zone 2 is divided into a plurality of compartments by the baffle plates 12-2 of the anoxic zone, and the width of each compartment is 300-900 mm.
The other steps are the same as those in the first to sixth embodiments.
The specific implementation mode is eight: the difference between this embodiment and one of the first to seventh embodiments is: a 304 filler interception net 21 is arranged between the aerobic zone 3 and the precipitation zone 4.
The other steps are the same as those in the first to seventh embodiments.
The 304 filler intercepting net 21 mainly prevents the fluidized filler from entering the settling zone 4, and particularly adopts a physical blocking mode.
The specific implementation method nine: the difference between this embodiment and the first to eighth embodiments is: and a drain pipe is arranged on the air stripping reflux groove 16-1 and is communicated with the sludge drain pipe 20.
The other steps are the same as those in the first to eighth embodiments.
The detailed implementation mode is ten: the difference between this embodiment and one of the first to ninth embodiments is as follows: and the gas stripping return pipe 16, the mixed liquid gas stripping return pipe 17 and the anoxic zone sludge gas stripping return pipe 24 are respectively provided with a gas flow regulating valve.
The other steps are the same as those in the first to ninth embodiments.
Adopt following embodiment to verify the utility model discloses a beneficial effect:
the first embodiment is as follows: a HIT sewage treatment container module reactor comprises an anaerobic zone 1, an anoxic zone 2, an aerobic zone 3, a precipitation zone 4, a solid-liquid separation zone 5, a clean water zone 6 and an equipment room 7, wherein the anaerobic zone 1 is communicated with the anoxic zone 2, the anoxic zone 2 is communicated with the aerobic zone 3, the aerobic zone 3 is communicated with the precipitation zone 4, the precipitation zone 4 is communicated with the solid-liquid separation zone 5, the solid-liquid separation zone 5 is communicated with the clean water zone 6, the effluent of the clean water zone 6 is discharged outside, and the equipment room 7 is arranged on one side of the clean water zone 6; a microbial carrier hydrophilic polyurethane filler is added into the tank body of the aerobic zone 3, the mass filling rate of the polyurethane filler is 5-20%, and the density is 1.05-1.06 g/cm3The polyurethane material is similar to sponge, is more hydrophilic after surface treatment and is more easily dissolved with water, and meanwhile, the specific gravity is slightly heavier than water by specific gravity adjustment and is about 1.05; the cross section of the settling zone 4 is triangular; a 304 filler interception net 21 is arranged between the aerobic zone 3 and the precipitation zone 4; a water inlet pipe 11 is arranged at the corner of the anaerobic zone 1, a water inlet distribution channel 25 is arranged on one side of the anaerobic zone 1, the water outlet end of the water inlet pipe 11 is communicated with the water inlet distribution channel 25, a filter screen 18 is arranged between the water inlet pipe 11 and the anaerobic zone 1, a plurality of anaerobic zone baffle plates 12-1 are arranged in the anaerobic zone 1, the anaerobic zone 1 is divided into a plurality of compartments by the anaerobic zone baffle plates 12-1, and the width of each compartment is 300-900 mm; a plurality of anoxic zone baffle plates 12-2 are arranged in the anoxic zone 2, and the anoxic zone baffle plates 12-2 divide the anoxic zone 2 into a plurality of anoxic zonesDry compartments, the width of each compartment is 300 mm-900 mm; the bottom of the aerobic zone 3 is provided with 36 microporous aeration discs 13, the front end of the settling zone 4 is provided with an energy dissipation zone 14, the rear end of the settling zone 4 is provided with a water outlet weir groove 15, the water outlet weir groove 15 is communicated with a water outlet weir 23, the water outlet end of the water outlet weir 23 is a water outlet 19, the water outlet 19 is communicated with a solid-liquid separation zone 5, an ultrafiltration membrane is arranged in the solid-liquid separation zone 5, two blowers, a flow meter, an automatic control cabinet, a dosing device and a disinfection device are arranged in a device room 7, one blower is communicated with the microporous aeration discs 13 at the bottom of the aerobic zone 3, the other blower is communicated with an air lifting pipe 22, the two blowers can control the dissolved oxygen concentration of the anaerobic zone 1 and the anoxic zone 2 in the reactor to be 0.1-0.5 mg/L, and the dissolved oxygen concentration of the aerobic zone 3 is 2-; the air stripping pipes 22 are arranged at the bottoms of the aerobic zone 3 and the sedimentation zone 4 and are communicated with the water inlet ends of a plurality of air stripping return pipes 16, the air stripping return pipes 16 are respectively arranged at the bottoms of the anoxic zone 2, the aerobic zone 3 and the sedimentation zone 4, the number of the air stripping return pipes 16 can be increased or decreased according to the water quantity, the water outlet ends of the air stripping return pipes 16 are communicated with the water inlet water distribution channel 25 through an air stripping return groove 16-1, and the air stripping return groove 16-1 is provided with a sewage discharge pipe which is communicated with the sludge discharge pipe 20; the water outlet end of the gas stripping return pipe 16 is also provided with a sludge discharge pipe 20, the gas stripping pipe 22 is provided with a gas source pipe A26 and a gas source pipe B27, an anoxic zone sludge gas stripping return pipe 24 and a mixed liquid gas stripping return pipe 17 are arranged between the anaerobic zone 1 and the anoxic zone 2, the water inlet end of the anoxic zone sludge gas stripping return pipe 24 is communicated with the anoxic zone 2, the water outlet end of the anoxic zone sludge gas stripping return pipe 24 is communicated with the water inlet water distribution channel 25, the gas outlet of the gas source pipe A26 is arranged in the port of the water inlet end of the anoxic zone sludge gas stripping return pipe 24, the water inlet end of the mixed liquid gas stripping return pipe 17 is communicated with the aerobic zone 3, the water outlet end of the mixed liquid gas stripping return pipe 17 is communicated with the anoxic zone 2, the gas outlet of the gas source pipe B27 is, and the gas stripping return pipe 16, the mixed liquid gas stripping return pipe 17 and the anoxic zone sludge gas stripping return pipe 24 are respectively provided with a gas flow regulating valve.
The HIT sewage treatment container module reactor of the embodiment is adopted to treat sewage of a certain village and town of the Sichuan Meishan, and the effective volume is 60m3Scale of treatmentIs 150m3D, the hydraulic retention time of the aerobic zone 3 is 4.2 hours, the hydraulic retention time of the anaerobic zone 1 is 1.22 hours, the hydraulic retention time of the anoxic zone 2 is 2.0 hours, the hydraulic retention time of the settling zone 4 is 2.25 hours, and the removal effect on various indexes in the sewage is as follows:
as shown in FIG. 5, ■ represents the water inlet test value, ● represents the water outlet test value, it can be seen that the HIT sewage treatment container module reactor has a good treatment effect on COD when treating domestic sewage, the water inlet COD is 196-266 mg/L, the water outlet COD is kept below 45mg/L, and the average value is 34.2mg/L, which can reach the national first-class discharge standard.
As shown in fig. 6, where ■ represents the influent water test value and ● represents the effluent water test value, it can be seen that the nitrification of ammonia nitrogen by the HIT sewage treatment container module reactor is complete with sufficient alkalinity. Under the conditions that the ammonia nitrogen of inlet water is 35-48 mg/L, TN and is 43-62 mg/L, and the average value is 54.5mg/L, the ammonia nitrogen of the final outlet water is kept below 0.4mg/L, the removal rate is above 99%, the ammonia nitrogen removal rate of the existing domestic sewage treatment plant is generally about 80%, and the ammonia nitrogen removal rate is improved by about 20% compared with the ammonia nitrogen removal rate.
As shown in fig. 7, wherein ■ represents the influent water test value and ● represents the effluent water test value, in anoxic zone 2, denitrifying bacteria use readily biodegradable COD in the influent water as electron acceptor to reduce nitro nitrogen to N2, thereby removing the nitrogen nutrient elements from the water body. As shown in the figure, the HIT sewage treatment container module reactor can effectively perform denitrification, the total nitrogen of effluent is kept at about 13mg/L, and the total nitrogen removal rate is over 75 percent. Under the conditions of high concentration and large fluctuation of actual domestic sewage and TN (twisted nematic) inlet water, the denitrification effect is improved, the hydraulic retention time of the anoxic zone 2 can be properly increased, the dissolved oxygen of each reaction section of the reactor is strictly controlled, and the good denitrification effect in a low-oxygen state is created. The total nitrogen removal rate of other stations in the area is only about 50%, and the total nitrogen removal rate of the embodiment is improved by about 25%.
As shown in fig. 8, wherein ■ represents the water inlet test value, ● represents the water outlet test value; phosphorus removal also affects more factors. The HIT sewage treatment container module reactor can eliminate the influence of Dissolved Oxygen (DO), organic matters and nitro nitrogen as much as possible. The existence of the anoxic zone 2 provides an anaerobic phosphorus release place for phosphorus accumulating bacteria, organic matters in direct water supply provide a substrate for subsequent aerobic phosphorus accumulation, and the influence of nitrate nitrogen on the release of phosphorus is eliminated to the maximum extent by the backflow mixed liquor in the anoxic zone 2. As shown in the figure, when the total phosphorus in the influent domestic sewage is changed at 3.1-5.3 mg/L, the HIT sewage treatment container module reactor can keep the effluent TP at about 0.35mg/L, and the removal rate is more than 90%. The reactor has good dephosphorization effect on domestic sewage treatment, and the hydraulic retention time of the anaerobic zone 1 can be properly increased if the dephosphorization rate is further improved. The removal rate of biological phosphorus removal in the sewage treatment of villages and towns in the area is only about 80% (the phosphorus removal needs to be added with drugs), and the removal rate of phosphorus in the embodiment is improved by more than 10%.
By integrating the above tests, the HIT sewage treatment container module reactor of the embodiment has the following removal effect on pollutants: the removal effect on COD and ammonia nitrogen is good, the COD of the effluent is below 45mg/L, and the ammonia nitrogen effluent is below 0.5 mg/L; TN effluent is below 14mg/L, TP effluent is about 0.35 mg/L. The removal rate of ammonia nitrogen, TN and TP respectively reaches more than 99 percent, 75 percent and 90 percent of nitrogen, and the water purification effect is excellent.
Of course, the above description is not right the utility model relates to a restriction of HIT sewage treatment container module reactor, the utility model relates to a HIT sewage treatment container module reactor is also not limited to above-mentioned example, and ordinary skilled person in this technical field is in the utility model relates to a change, modification, interpolation or replacement that make in the essential scope of HIT sewage treatment container module reactor also belongs to the utility model relates to a scope of protection of HIT sewage treatment container module reactor.
Claims (10)
1. A HIT sewage treatment container module reactor is characterized by comprising an anaerobic zone (1), an anoxic zone (2), an aerobic zone (3), a settling zone (4), a solid-liquid separation zone (5), a clear water zone (6) and an equipment room (7); a water inlet pipe (11) is arranged at the corner of the anaerobic zone (1), a water inlet distribution channel (25) is arranged at one side of the anaerobic zone (1), the water outlet end of the water inlet pipe (11) is communicated with the water inlet end of the water inlet distribution channel (25), a plurality of anaerobic zone baffle plates (12-1) are arranged in the anaerobic zone (1), a plurality of anoxic zone baffle plates (12-2) are arranged in the anoxic zone (2), an energy dissipation zone (14) is arranged at the front end of the settling zone (4), a water outlet weir groove (15) is arranged at the rear end of the settling zone (4), the water outlet end of the water outlet weir groove (15) is communicated with the water inlet end of a water outlet weir (23), the water outlet end of the water outlet weir (23) is a water outlet (19), the water outlet (19) is communicated with the water inlet of the solid-liquid separation zone (5), a solid-liquid separation device is arranged in the solid-liquid separation zone (, an air supply outlet of a blower is communicated with an air inlet of an air stripping pipe (22), the air stripping pipe (22) is arranged at the bottoms of an aerobic zone (3) and a sedimentation zone (4) and is communicated with water inlet ends of a plurality of air stripping return pipes (16), the air stripping return pipes (16) are respectively arranged at the bottoms of an anoxic zone (2), the aerobic zone (3) and the sedimentation zone (4), a water outlet end of each air stripping return pipe (16) is communicated with a water inlet end of a water inlet distribution channel (25) through an air stripping return tank (16-1), the air stripping pipe (22) is provided with an air source pipe A (26) and an air source pipe B (27), an anoxic zone sludge air stripping return pipe (24) and an air stripping mixed liquid return pipe (17) are arranged between the anaerobic zone (1) and the anoxic zone (2), a water inlet end of the anoxic zone sludge air stripping return pipe (24) is arranged in the anoxic zone (2), a water outlet end of the anoxic zone sludge air stripping return pipe (24) is communicated with a water inlet end of the water distribution channel (25), the air outlet of the air source pipe A (26) is arranged in the port of the water inlet end of the sludge gas stripping return pipe (24) in the anoxic zone, the water inlet end of the mixed liquid gas stripping return pipe (17) is arranged in the aerobic zone (3), the water outlet end of the mixed liquid gas stripping return pipe (17) is arranged in the anoxic zone (2), and the air outlet of the air source pipe B (27) is arranged in the port of the water inlet end of the mixed liquid gas stripping return pipe (17).
2. A HIT sewage treatment container module reactor as claimed in claim 1 where a filter screen (18) is placed between the inlet pipe (11) and the anaerobic zone (1).
3. The HIT sewage treatment container module reactor of claim 1, wherein the solid-liquid separation device is an ultrafiltration membrane, a cloth filter or a sand filter.
4. A HIT sewage treatment container module reactor as claimed in claim 1 where the exit end of said gas stripping return pipe (16) is further equipped with a sludge drain pipe (20).
5. The HIT sewage treatment container module reactor according to claim 1, wherein the bottom of the aerobic zone (3) is provided with a plurality of microporous aeration discs (13), and the air supply outlet of another air blower in the equipment room (7) is communicated with the air inlet of the microporous aeration discs (13).
6. The HIT sewage treatment container module reactor according to claim 1, wherein a flow meter, an automatic control cabinet, a dosing device and a disinfection device are further arranged in the equipment room (7).
7. The HIT sewage treatment container module reactor as claimed in claim 1, wherein the anaerobic zone baffle plate (12-1) divides the anaerobic zone (1) into a plurality of compartments, the anoxic zone baffle plate (12-2) divides the anoxic zone (2) into a plurality of compartments, and each compartment has a width of 300mm to 900 mm.
8. A HIT sewage treatment container module reactor as claimed in claim 1, wherein 304 packing screens (21) are provided between the aerobic zone (3) and the settling zone (4).
9. The HIT sewage treatment container module reactor as claimed in claim 1 or 4, wherein said air stripping reflux tank (16-1) is provided with a drain pipe, and said drain pipe is communicated with a sludge drain pipe (20).
10. The HIT sewage treatment container module reactor as claimed in claim 1, wherein the gas stripping return pipe (16), the mixed liquor gas stripping return pipe (17) and the anoxic zone sludge gas stripping return pipe (24) are all provided with gas flow regulating valves.
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| CN202021175362.1U CN212894341U (en) | 2020-06-19 | 2020-06-19 | HIT sewage treatment container module reactor |
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| CN202021175362.1U CN212894341U (en) | 2020-06-19 | 2020-06-19 | HIT sewage treatment container module reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024016714A1 (en) * | 2022-07-19 | 2024-01-25 | 东南大学 | Small-size multistage baffling a2/o apparatus and process for treating domestic sewage on plateau |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024016714A1 (en) * | 2022-07-19 | 2024-01-25 | 东南大学 | Small-size multistage baffling a2/o apparatus and process for treating domestic sewage on plateau |
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