CN107827230B - Constant-temperature intelligent control MBR water treatment device for high-nitrogen and phosphorus sewage in low-temperature area - Google Patents
Constant-temperature intelligent control MBR water treatment device for high-nitrogen and phosphorus sewage in low-temperature area Download PDFInfo
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C02F3/1268—Membrane bioreactor systems
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/006—Regulation methods for biological treatment
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
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- C02F2301/106—Thermophilic treatment
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
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Abstract
The invention relates to environment-friendly equipment, in particular to a constant-temperature intelligent control MBR water treatment device for high-nitrogen and phosphorus sewage in a low-temperature area. The device comprises a sewage collection pipe network, a fine barrier pool, an adjusting pool and a constant-temperature intelligent control MBR water treatment device which are sequentially communicated; the constant-temperature intelligent-control MBR water treatment device comprises an anaerobic zone, an aerobic zone and an MBR membrane zone which are sequentially communicated, wherein the aerobic zone adopts a middle partition plate, the aerobic zone and the anoxic zone are divided up and down, the middle partition plate is a perforated stainless steel plate, and a perforated aeration chassis is arranged on the middle partition plate of the aerobic zone and is connected with a variable-frequency Roots blower; to MBR membrane area, upwards promote membrane module through the bracing piece mode, the lower part reserves sufficient space to through addding the swash plate, the backing mud is subsided through the swash plate and is summarized to the backwash pump mouth, and the backing mud is carried to the anoxic zone through wearing wall mud backwash pump. The constant temperature heating system solves the problems that the biochemical system is difficult to cultivate and mature in the low temperature season in the northern area, the debugging period is long and the system operation is unstable.
Description
Technical Field
The invention relates to environment-friendly equipment, in particular to a constant-temperature intelligent control MBR water treatment device for high-nitrogen and phosphorus sewage in a low-temperature area.
Background
In the prior art, MBR is also called Membrane bioreactor (Membrane Bio-Reactor), and is a novel water treatment technology combined by a Membrane separation unit and a biological treatment unit. The technology is widely applied to south China and east China, and has the advantages of high and stable effluent quality, low residual sludge yield, small occupied area, no limitation of setting occasions, capability of removing ammonia nitrogen and refractory organic matters, convenience in operation and management, easiness in realization of automatic control and the like.
However, the application case of the process in the northern low-temperature region of China is relatively lacking, and the main reasons are as follows: 1. the seasonal temperature difference is large: compared with the south China and the east China, the northern China is clear in four seasons, and the air temperature fluctuation is large; the low temperature and longer freezing period which are not suitable for the growth of microorganisms lead to long debugging period of all biological reactors, unstable system operation, unsatisfactory treatment effect and no exception of MBR process; 2. the operation cost is high: compared with the self-flowing and sedimentation water outlet flow of the traditional A/O process, the MBR process needs to be added with a water producing pump, a sweeping fan, a backwashing system and cleaning agents for supporting the system to operate. Therefore, the MBR process of electricity charge expenditure is far superior to the traditional A/O process, but the cost and the occupied area of the medicament are far superior to the traditional process. However, the development of the northern area is lagged from that of the southern China and the eastern China, and the land cost of other areas except provincial cities is relatively reasonable; 3. the pollution and blockage load is large: the sewage in the northern low-temperature area has the characteristics of small water quantity, high pollutant concentration and high nitrogen and phosphorus content, and in the traditional process of upgrading the MBR process, an operation main body still selects a high-sludge concentration mode to treat the pollutant, so that the membrane system is operated under high load in a high-sludge concentration environment. In addition, the cleaning temperature of the ultrafiltration membrane component is required to be 5-45 ℃, and outdoor or underground MBR equipment cannot perform off-line cleaning in spring, autumn and winter, so that flux of the membrane component is attenuated, and membrane wires are subjected to brittle failure or filter layer detachment due to anaerobic adhesion of surface sludge; 4. the dissolved oxygen is too high: in order to slow down the adhesion of sludge on the surface of the membrane element, the operation of a membrane system requires each ultrafiltration membrane element with an effective filtration area of 20 square meters, at least 3 m/h of purge air is provided, and a plurality of MBR reactors are used for communicating an aerobic tank with an MBR membrane tank, so that the dissolved oxygen of the aerobic tank is too high, microorganisms are aged rapidly, and the sewage treatment efficiency of the microorganisms is reduced; 5. lack of operational experience: although MBR technology has been popular in China for a period of time, because enterprise personnel flow greatly, engineering equipment quality assurance is only one year, ultrafiltration membrane components are not in place after sale, and the like, most ultrafiltration membrane components are not reasonably operated, so that the ultrafiltration membrane components are shorter than the membrane operation life cycle and need to be replaced.
Disclosure of Invention
The invention provides a constant-temperature intelligent control MBR water treatment device for high-nitrogen and phosphorus sewage in low-temperature areas, which realizes the standard treatment of the high-nitrogen and phosphorus sewage by remolding the current popular MBR treatment process flow; on the premise of meeting the normal operation of a membrane system, the energy consumption of a fan of the MBR water treatment device is greatly reduced; meanwhile, based on the locality characteristics of the low-temperature region, a constant-temperature guarantee system is innovated, and the heat source utilization efficiency is improved while the microorganism growth condition is met.
The technical scheme of the invention is as follows: the constant-temperature intelligent control MBR water treatment device for the high-nitrogen and phosphorus sewage in the low-temperature area comprises a sewage collection pipe network, a fine barrier pool, an adjusting pool and a constant-temperature intelligent control MBR water treatment device which are sequentially communicated; the constant-temperature intelligent-control MBR water treatment device comprises an anaerobic zone, an aerobic zone and an MBR membrane zone which are sequentially communicated, and is characterized in that the aerobic zone in the traditional process is divided into an aerobic zone and an anoxic zone by an intermediate baffle plate, the intermediate baffle plate is a perforated stainless steel plate, and a perforated aeration chassis is arranged on the intermediate baffle plate of the aerobic zone and is connected with a variable-frequency Roots blower; to MBR membrane area, upwards promote membrane module through the bracing piece mode, the lower part reserves sufficient space to through addding the swash plate, the backing mud is subsided through the swash plate and is summarized to the backwash pump mouth, and the backing mud is carried to the anoxic zone through wearing wall mud backwash pump.
In the scheme, the carbon steel shell in the anaerobic zone is laid by adopting a ten thousand character shape to heat the anaerobic zone at constant temperature.
The perforated aeration chassis at the bottom of the membrane component is connected with two fixed-frequency Roots blowers, and the blowers are controlled by a time relay in a superposition mode.
The upper equipment space of the anaerobic zone is additionally provided with a spray deodorizing device, the inside of the spray deodorizing device adopts a filler and water mist spraying mode, and the spray deodorizing device is communicated with the anaerobic zone and the aerobic zone.
And (3) reshaping the treatment process: the new treatment process utilizes the characteristic that the microbiota falls in an anoxic environment and has moderate treatment capacity on pollutants such as COD, BOD, nitrogen, phosphorus and the like, increases the setting of an anoxic zone in forward process flow of MBR treatment by reasonably adjusting the spatial structure of an MBR water treatment device, and returns a membrane pool in reverse process flow to an aerobic pool instead of the anoxic pool. The method is characterized in that effluent from an anaerobic zone is mixed with return sewage of an MBR membrane pond by utilizing a cross-zone mixed flow mode, and the pretreatment of COD and BOD of the effluent from the anaerobic zone and the advanced treatment of residual nitrogen and phosphorus in the return sewage of the MBR zone are realized through a mixed microbial community of a sedimentary layer and a mixed layer of the anoxic zone. The new process flow improves the impact resistance of the system, reduces the sludge load of the aerobic zone and the MBR membrane zone, and achieves the aim that various indexes of the final effluent reach the standards.
The energy consumption of the air blower is reduced: aiming at the problems that the energy consumption of an MBR process fan is high, and the communication between an aerobic zone and the MBR zone causes the rapid oxidation of microorganisms and the reduction of treatment efficiency, the invention selects advanced dissolved oxygen real-time monitoring equipment and is matched with a variable-frequency Roots blower, and under the control of a PLC self-control program, the output power and the air quantity of the variable-frequency blower can be quickly and automatically adjusted according to the dissolved oxygen of the aerobic zone, thereby meeting the normal growth requirement of microorganisms in the aerobic zone.
Meanwhile, the problem that the requirement on the blowing air quantity of the MBR membrane area is large is solved, and the operation of the two fans is controlled through the time relay. Therefore, pulse aeration flushing is formed by adopting a mode of increasing the air quantity in a short time in the overlapping time on the premise of not adding a pneumatic valve and other external equipment. The method not only can provide better sweeping effect, but also can reduce the 3 m-solution/hour gas quantity required by continuous aeration to 2 m-solution/hour gas quantity, and the gas quantity in the superposition period is increased to 4 m/hour, so that the comprehensive energy consumption is reduced by about 25%.
And (3) uniformly heating at constant temperature: the common heating mode in northern low-temperature areas is to inject steam into the regulating tank and stir the sewage in the regulating tank by air pressure so as to achieve the heating effect. Because the sewage in the anaerobic zone has longer residence time and poor heat preservation effect, the sewage temperature of the regulating tank needs to be greatly increased, and the heat energy consumption is larger. Meanwhile, a high temperature area, a medium temperature area and a low temperature area are formed in different areas of the anaerobic area, and microorganisms cannot obtain good survival conditions in the high temperature area and the low temperature area, so that the effective microorganism concentration of the anaerobic area is reduced, and the treatment efficiency is insufficient. According to the invention, the geothermal pipe is paved in the anaerobic zone carbon steel shell of the MBR water treatment device in a 'ten thousand character' shape, the water temperature is uniformly increased by utilizing the heat exchange principle and the heat conductivity of the carbon steel structure, and the heat energy dissipation of the device is slowed down by utilizing the heat preservation and heat insulation material. The method not only reduces the heat source energy consumption required by the water temperature lifting of the regulating reservoir, but also relatively balances the overall water temperature of the anaerobic zone, improves the effective microorganism concentration, resists the influence of seasonal temperature difference on microorganism growth, and improves the regional adaptability of the device.
Reducing the influence of sludge: based on years of membrane system operation experience, in the system operation process, even if the back flow is increased, sediment exists in the aerobic zone and the MBR membrane zone, and sediment deposition can cause blockage of a purge air pipe of an aeration chassis, so that partial perforated aeration pipes are unevenly aerated, a large amount of sludge is adhered to the surfaces of corresponding membrane elements, and the flux of the membrane elements is reduced. Through the transformation practice of a plurality of items, the sequential structures of an aerobic zone and an anoxic zone in the device are replaced by an up-down structure, and the middle partition plate is replaced by a perforated stainless steel plate from the whole plate. The method realizes uniform water distribution from the anoxic zone to the aerobic zone, and simultaneously facilitates sediment in the aerobic zone to the bottom of the anoxic zone through the perforated plate, thereby meeting the supplementary requirement of anaerobic sludge in the anoxic zone. To MBR membrane area, upwards promote the membrane module through the bracing piece mode, the lower part reserves sufficient space to through addding the swash plate, promote the sediment to deposit to the bottom of the pool, reduce MBR membrane area mud concentration load, promote milipore filter subassembly running condition. And the bottom sludge is conveyed to the anoxic zone through a through-wall sludge reflux pump to collect sludge settled through an inclined plate to a reflux pump port, and the mixed liquid is formed with the effluent of the anaerobic zone rapidly.
And a deodorizing device is additionally arranged: in the traditional MBR water treatment device, a bent pipe mode is adopted, and the gas in the reaction zone is directly discharged into the air. The work and life feelings of personnel around the sewage station are seriously affected. The spray tower deodorizing device with the biological filler is additionally arranged, so that the biological filler can effectively adsorb and remove pungent odor generated in the operation process of the water treatment device, and part of water-soluble pollutants are collected to an anaerobic tank by means of the spray device, thereby realizing comprehensive treatment.
The invention has the advantages that: 1. the constant-temperature heating system is innovated, the problems of long debugging period and unstable system operation caused by difficult cultivation and maturation of the biochemical system in low-temperature seasons in northern areas are solved, the heat source utilization efficiency is high, the heating is continuous and balanced, the biochemical system cultivation is rapid, and the operation is stable; 2. the water treatment process flow is remodeled, the treatment efficiency of the high-nitrogen and phosphorus sewage is improved, the pre-treatment facilities and the post-treatment facilities are not required to be additionally arranged, the treatment effect of COD, BOD, ammonia nitrogen, total phosphorus, total nitrogen and SS is good, and the effluent is stable and reaches the standard; 3. the device has low running cost and high intelligent control degree, and can effectively reduce the electricity charge and the labor cost of management; 4. the design structures of the MBR membrane area and the aerobic area are improved, the recycling and rationalization application of sludge are realized, the flux attenuation influence of the sludge on the ultrafiltration membrane component is weakened, the service life of the membrane component is prolonged, the self-cleaning capability of the membrane system is strong, the cleaning frequency can be moderately reduced, and the service life of the component is prolonged; 5. the operation process has no peculiar smell, eliminates the pungent gas generated in the reaction process, has trouble on work and life of personnel around the sewage treatment station, and meets the indoor assembly in low-temperature areas and the requirement of stable operation throughout the year. 6. The device has the advantages of enhancing the automatic monitoring and intelligent control capability of the device and reducing the influence on the system stability caused by insufficient operation experience. 7. By reasonably utilizing the sludge, the sewage treatment effect is enhanced, and waste is changed into valuable. The times and the cost of sludge outward transport are reduced, the operation environment of an ultrafiltration membrane system is optimized, the service life of the ultrafiltration membrane component is prolonged, and the comprehensive operation cost of the MBR water treatment device is successfully reduced. The product requirements of high efficiency of the device, high quality of discharged water and low running cost in the water treatment process are met.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a process flow diagram of the present invention.
Fig. 3 is a schematic diagram of a ten-thousand character multi-water pipe laying structure.
Fig. 4 is a schematic diagram of a ten-thousand character single water pipe laying structure.
Detailed Description
Referring to fig. 1, 2, 3, 4, the part names are as follows: anaerobic zone 1, aerobic zone 2, MBR membrane zone 3, anoxic zone 4, middle baffle 5, perforated aeration chassis 6, variable frequency Roots blower 7, support rod 8, inclined plate 9, sludge reflux pump 10, spray deodorizing device 11, MBR membrane component 12, spray liquid recovery pipe 13, water distribution pipe 14, sludge bottom row pipeline 15, ten thousand character laying water inlet pipe 16, ten thousand character laying water outlet pipe 17.
Referring to fig. 1 and 2, the constant temperature intelligent control MBR water treatment device for high nitrogen and phosphorus sewage in low temperature areas comprises a sewage collecting pipe network (raw water), a fine barrier pool, an adjusting pool, a constant temperature intelligent control MBR water treatment device and water outlet (mouth) which are communicated in sequence; the constant-temperature intelligent-control MBR water treatment device comprises an anaerobic zone 1 (anaerobic tank), an aerobic zone 2 (aerobic tank) and an MBR membrane zone 3 (MBR membrane tank) which are sequentially communicated, and is characterized in that an intermediate baffle 3 is adopted in the aerobic zone 2, the aerobic zone 2 and an anoxic zone 4 (anoxic tank) are separated up and down, the intermediate baffle 5 is a perforated stainless steel plate, and a perforated aeration chassis 6 is arranged on the intermediate baffle of the aerobic zone and is connected with a variable-frequency Roots blower 7; to MBR membrane area 3, through bracing piece 8 mode, upwards promote membrane module, the lower part reserves sufficient space to through addding swash plate 9, the sediment subsides through swash plate 9 and gathers to mud reflux pump 10 pump mouth, the sediment is carried to anoxic zone 4 through wearing wall mud reflux pump 10.
Referring to fig. 3 and 4, geothermal pipes are laid in a ten thousand character shape on a carbon steel shell of the anaerobic zone 1, and the anaerobic zone 1 is heated at constant temperature. The water pipe laying can be single water pipe or multi-water pipe, and is not limited. A ten-character laying water inlet pipe 16 and a ten-character laying water outlet pipe 17 are arranged. The ten thousand character shape is used for paving the geothermal pipe, and has the following advantages: through the interval arrangement of the water inlet pipe and the water outlet pipe, the uniform heating of the paved area is realized, and the patterns of a high temperature area, a medium temperature area and a low temperature area formed by the traditional heating mode are eliminated. The microbial community corresponding to the paved area can obtain relatively balanced and stable growth and development conditions, so that the direct influence of the seasonal temperature difference on the biochemical effect of the area is eliminated.
The perforated aeration chassis at the bottom of the MBR membrane component 12 is connected with two fixed-frequency Roots blowers, and the blowers are controlled by a time relay in a superposition operation way.
The upper equipment space of the anaerobic zone 1 is additionally provided with a spray deodorizing device 11, the inside of the spray deodorizing device 11 adopts a filler and water mist spraying mode, and the spray deodorizing device 11 is communicated with the anaerobic zone 1 and the aerobic zone 2.
In the actual sewage treatment process, except for the 'constant temperature intelligent control MBR water treatment device', a fine barrier pool, an adjusting pool, a clean water pool and a membrane component cleaning pool in the original process still need to be reserved. The water treatment flow is as follows:
the sewage is collected to a grid pool through a collecting pipe network, and larger massive pollutants in the water are removed through the interception effect of a mechanical fine barrier, such as: plant stems and leaves, packaging crushed aggregates, hair, etc. The mechanical fine grill rotation period was set to 20 minutes/time.
The sewage automatically flows into the regulating tank after passing through the fine barrier, and besides the original pH value on-line probe of the regulating tank, a temperature sensing probe is additionally arranged at the far end (near the lift pump) of the steam pipe orifice and is used for collecting the sewage water temperature of the regulating tank. The degree of the temperature sensor is used for controlling the switch of the pneumatic valve of the steam pipe, the closing temperature of the pneumatic valve is set to be 30 ℃, and the steam consumption can be effectively reduced. Through the staged impact of steam and the stirring effect of the stirrer, the water temperature balance of the regulating tank is realized, the pH value meets the anaerobic requirement, and the sediment with finer particles is promoted to further settle to the bottom of the tank.
After pretreatment and mixed heating of the front section, the sewage is conveyed to an anaerobic zone 1 of a constant temperature intelligent control MBR water treatment device by a lifting pump and is uniformly applied through a bottom water distribution pipe 14. The sewage needs to judge the residence time in the anaerobic zone 1 according to the COD value, and the water temperature is reduced during the residence time. The constant-temperature intelligent control MBR water treatment device distributes a circulating water heat dissipation layer through a ten-thousand character structure on the outer wall of the anaerobic zone 1, and heats the anaerobic zone 1 at constant temperature. Through layered and sectional temperature collection, the water temperature fluctuation range of the anaerobic zone 1 in winter is between 32 and 35 ℃, so that microorganisms in the anaerobic zone 1 have a relatively constant-temperature growth environment. The method effectively utilizes the residual heat energy of the circulating water, improves the utilization rate of a heat source, and reduces the heating cost required by the low-temperature period of the system.
Sewage flows from the anaerobic zone 1 to the anoxic zone 4 in an overflow manner, and is mixed with the return sewage of the MBR membrane zone 3 in the anoxic zone 4. The degree range of the dissolved oxygen in the center of the anoxic zone 4 is 0.3-0.5 mg/L, and sludge particles are affected by gravity and slowly settle in the zone to form a sludge zone and a mixing zone. The anoxic zone 4 provides a coexisting basis for aerobic and facultative and a part of anaerobic microorganisms, and realizes the comprehensive removal of nitrogen, phosphorus, COD and BOD in sewage.
Along with the continuous lifting of the sewage level of the anoxic zone 4, the upper mixed liquid enters the aerobic zone 2 through the round holes of the middle partition plate 5 (perforated stainless steel plate). The perforated aeration chassis 6 of the aerobic zone 2 is connected with a variable frequency Roots blower 7. The dissolved oxygen probe monitors the dissolved oxygen value of the side wall of the area, when the degree is less than 1mg/L, the variable-frequency Roots blower 6 is started, and the variable-frequency Roots blower 6 is automatically closed when the degree of the dissolved oxygen exceeds 3mg/L along with the rising of the degree of the dissolved oxygen. The device can effectively control the oxygen dissolution of the aerobic zone 2, forms irregular stirring through the change of the air quantity, is beneficial to the downward sedimentation of larger sludge particles, and is settled to the anoxic zone 4 through the round holes of the stainless steel perforated plate, so that the concentration of the sludge entering the MBR membrane zone 3 from the aerobic zone 2 is reduced. Meanwhile, the treatment of BOD and COD by aerobic microorganisms can be better promoted, and the phenomena of premature senility of microorganisms and scattered sludge particles caused by excessive aeration are avoided, so that the sludge settling performance is influenced.
The sewage in the aerobic zone 2 overflows into the MBR membrane zone 3, and the ultrafiltration MBR membrane component 12 produces water based on the negative pressure of the self-priming pump, so that the physical separation of water and sludge particles is realized. And the effluent of the membrane system enters a clean water tank through a pipeline for backwashing the membrane system, and other recycling requirements or direct discharge are met. The perforated aeration chassis at the bottom of the MBR membrane component 12 is connected with two fixed-frequency Roots blowers, the blowers are controlled by a time relay, the single running time is 30 minutes, the rest time is 20 minutes, and the superposition running time is 5 minutes. Fixed frequency Roots blower selection type single air volume formula: 2.5m beam/h number of patches. The two blowers are alternately overlapped to generate larger air quantity and continuously act with the continuous aeration period to form pulse aeration. The pulse aeration can lead the membrane wires to form intense shaking, and strengthen the friction among the membrane wires, thereby more effectively removing the pollutants on the surface of the membrane wires and improving the anti-pollution capability and self-cleaning capability of a membrane system. The blowing air quantity of the membrane component is reduced from the required not lower than 3 m/h to 2.5 m/h from the angle of energy consumption, so that the aeration energy consumption is further reduced.
The bottom of the MBR membrane area 3 adopts a sloping plate and limiting support method, an MBR membrane module 12 is lifted to the middle section from the bottom of the tank, and redundant sludge in the area is collected and collected to the pump port of a through-wall sludge reflux pump 10 through sedimentation of the sloping plate 9, so that the sludge concentration and bottom dead sludge amount of the MBR membrane tank are further reduced. Not only effectively reduces the membrane pollution pressure, but also avoids uneven aeration caused by the blocking of air holes by sludge deposition of the aeration floor. The method avoids the related cost of adding the pipeline pneumatic valve and the pipeline transformation, and simultaneously can more effectively remove the sludge in the aeration floor purging air pipe and reduce the occurrence of the blocking condition of the aeration floor.
Because of the adoption of the activated sludge method, the activated sludge in the MBR membrane area 3 can absorb the residual nitrogen and phosphorus in the sludge particles treated in the aerobic area 2, and the residual nitrogen and phosphorus are returned to the anoxic area 4 for further treatment through the sludge reflux pump 10. Based on the invention, the requirements on high-nitrogen and phosphorus sewage treatment can be effectively met in the test case of comprehensive treatment of electroplating wastewater and domestic sewage.
The anoxic zone 4 is communicated with the anaerobic zone 1 through a pipeline, and the sludge quantity of the two zones is adjusted according to the actual running condition. And (5) conveying the redundant sludge to a sludge filter press through a sludge pump, and carrying out outward treatment after reducing the water content.
The invention also considers that the gas in the anaerobic zone 1 and the gas in the aerobic zone 2 are directly discharged, which can cause certain influence on the periphery, and the spray deodorizing device 11 is additionally arranged by utilizing the equipment space at the upper part of the anaerobic zone 1. The filler and water mist spraying mode is adopted in the microbial community culturing device, and the pungent gas in the gas is recovered and treated. The spray liquid is integrated into the anaerobic decontaminating water for comprehensive treatment through a funnel-shaped collector at the bottom of the deodorizing device, and the purified gas is naturally discharged in a high-altitude discharge mode.
The above description is only of specific embodiments of the present invention, and the various illustrations do not limit the essential content of the present invention.
Claims (4)
1. The constant-temperature intelligent control MBR water treatment device for the high-nitrogen and phosphorus sewage in the low-temperature area comprises a sewage collection pipe network, a fine barrier pool, an adjusting pool and a constant-temperature intelligent control MBR water treatment device which are sequentially communicated; the constant-temperature intelligent-control MBR water treatment device comprises an anaerobic zone (1), an aerobic zone (2) and an MBR membrane zone (3) which are sequentially communicated, and is characterized in that the aerobic zone (2) in the traditional process is divided into an aerobic zone (2) and an anoxic zone (4) through a middle partition plate (5), the middle partition plate (5) is a perforated stainless steel plate, and a perforated aeration chassis (6) is arranged on the middle partition plate (5) of the aerobic zone and is connected with a variable-frequency Roots blower (7); to MBR membrane area (3), upwards promote membrane module through bracing piece (8) mode, the lower part reserves sufficient space to through addding swash plate (9), the sediment is subsided through swash plate (9) and is summarized to mud backwash pump (10) pump mouth, and the sediment is carried to anoxic zone (4) through wearing wall mud backwash pump (10).
2. The constant temperature intelligent control MBR water treatment device for high nitrogen and phosphorus sewage in a low temperature area according to claim 1, wherein a carbon steel shell of the anaerobic area (1) is laid with a 'ten thousand character' shape geothermal pipe, and the anaerobic area (1) is heated at constant temperature.
3. The intelligent constant temperature control MBR water treatment device for high nitrogen and phosphorus sewage in low temperature areas according to claim 1 or 2, wherein the perforated aeration chassis at the bottom of the membrane module is connected with two fixed frequency Roots blowers, and the blowers are controlled by a time relay in a superposition operation mode.
4. The constant temperature intelligent control MBR water treatment device for high nitrogen and phosphorus sewage in a low temperature area according to claim 3, wherein a spray deodorizing device (11) is additionally arranged in the equipment space at the upper part of the anaerobic zone (1), the spray deodorizing device (11) adopts a filler and water mist spraying mode, and the spray deodorizing device (11) is communicated with the anaerobic zone (1) and the aerobic zone (2).
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| CN201711357868.7A CN107827230B (en) | 2018-01-04 | 2018-01-04 | Constant-temperature intelligent control MBR water treatment device for high-nitrogen and phosphorus sewage in low-temperature area |
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| CN107827230B true CN107827230B (en) | 2023-09-15 |
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| CN109264856B (en) * | 2018-11-30 | 2023-11-28 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Heat pipe type MBR sewage treatment system using cold-resistant flora in cold area |
| CN111825212A (en) * | 2019-04-17 | 2020-10-27 | 上海交通大学 | Integrated three-dimensional biological ecological sewage treatment device and method |
Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000225325A (en) * | 1998-11-30 | 2000-08-15 | Mitsubishi Kakoki Kaisha Ltd | Flat membrane separation device |
| KR20020081175A (en) * | 2002-09-24 | 2002-10-26 | 임광희 | Package type-multistage reactor combining the upper part of aerobic fluidized biofilm process and the lower part of anoxic process |
| KR200332092Y1 (en) * | 2003-06-17 | 2003-11-10 | 주식회사 라파텍 | System for wastewater treatment using partition type anoxic basin and membrane basin |
| CN1506322A (en) * | 2002-12-10 | 2004-06-23 | 中国科学院生态环境研究中心 | Integrated biological denitrifying reactor |
| CN1868923A (en) * | 2005-05-24 | 2006-11-29 | 株式会社东芝 | Dephosphorize apparatus of sewage treatment plant |
| CN101468863A (en) * | 2007-12-28 | 2009-07-01 | 北京锦奥华荣科技有限公司 | Hospital waste water purification system |
| CN201313854Y (en) * | 2008-09-25 | 2009-09-23 | 中国科学院广州地球化学研究所 | Hypoxia/aerobic integrated air lift circulation biological reactor |
| CN201390676Y (en) * | 2009-02-27 | 2010-01-27 | 天津市天水环保设计工程有限公司 | Micro-grid dynamic membrane bioreactor for continuously updating dynamic membrane |
| JP2010089020A (en) * | 2008-10-08 | 2010-04-22 | Toshiba Corp | Waste water treatment apparatus |
| CN201678559U (en) * | 2010-03-19 | 2010-12-22 | 申军波 | Sewage treatment device |
| CN101928096A (en) * | 2009-12-28 | 2010-12-29 | 清华大学 | Sewage treatment method and system in ecological sensitive areas |
| KR20110001685A (en) * | 2009-06-30 | 2011-01-06 | 코오롱건설주식회사 | External-submersed membrane separating film device |
| WO2012067453A2 (en) * | 2010-11-17 | 2012-05-24 | Ahn Dae Hee | Apparatus and method for treating sewage/wastewater using biofilms and aerobic granular sludge |
| CN202430055U (en) * | 2012-02-01 | 2012-09-12 | 广州市环境保护工程设计院有限公司 | SBR (sequencing batch reactor) |
| CN102659244A (en) * | 2012-05-22 | 2012-09-12 | 苏州科技学院 | Integrated internal circulation type denitrification and decarburization bio-membrane reactor and operating method thereof |
| CN102660454A (en) * | 2012-05-07 | 2012-09-12 | 黑龙江龙能伟业燃气股份有限公司 | Anaerobic dry fermentation equipment and anaerobic dry fermentation process using same |
| CN202598647U (en) * | 2012-05-07 | 2012-12-12 | 黑龙江龙能伟业燃气股份有限公司 | Terrestrial heat and wall heat heating system for anaerobic dry fermentation equipment |
| CN203333444U (en) * | 2013-06-30 | 2013-12-11 | 镇江清水环境科技有限公司 | Nitrogen enriching and removing combined system |
| WO2013183965A1 (en) * | 2012-06-09 | 2013-12-12 | 로스웰워터텍글로컬(주) | Membrane system and method for treating sewage and wastewater capable of automated removal/destruction of scum/foam with high energy efficiency, high flux and low operation costs and having process conversion method from constant level continuous batch reactor process |
| CN203700116U (en) * | 2014-01-20 | 2014-07-09 | 天津机科环保科技有限公司 | Integrated efficient micro power biochemical treatment box |
| CN204529441U (en) * | 2014-12-26 | 2015-08-05 | 北京伊普国际水务有限公司 | A kind of membrane bioreactor scouring aerating system |
| CN105836878A (en) * | 2016-05-12 | 2016-08-10 | 北京易普优能科技有限公司 | Membrane bioreactor with duplex decoupling function |
| CN205528307U (en) * | 2016-04-18 | 2016-08-31 | 河南力诚环保科技有限公司 | High concentration organic wastewater equipment based on UASB -MBR |
| CN106315969A (en) * | 2015-06-25 | 2017-01-11 | 麦王环境技术股份有限公司 | Integrated wastewater treatment equipment of IBR (integral biological reactor) and treatment process |
| CN106830531A (en) * | 2017-02-24 | 2017-06-13 | 宜兴市建邦环境投资有限责任公司 | A kind of residual sludge reduction rural sewage treatment integrated apparatus |
| CN206500031U (en) * | 2017-02-06 | 2017-09-19 | 无锡市锡东电力配套设备厂 | A kind of rubbish deodorization spray equipment |
| CN206570152U (en) * | 2016-12-13 | 2017-10-20 | 浙江问源环保科技股份有限公司 | A kind of small-sized integrated MBR sewage-treatment plants |
| CN207671763U (en) * | 2018-01-04 | 2018-07-31 | 韩淇 | For the high nitrogen in low temp area, the constant temperature intelligence control MBR water treatment facilities of phosphorus sewage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2964891C (en) * | 2014-10-22 | 2021-11-09 | Koch Membrane Systems, Inc. | Membrane filter module with bundle-releasing gasification device |
-
2018
- 2018-01-04 CN CN201711357868.7A patent/CN107827230B/en active Active
Patent Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000225325A (en) * | 1998-11-30 | 2000-08-15 | Mitsubishi Kakoki Kaisha Ltd | Flat membrane separation device |
| KR20020081175A (en) * | 2002-09-24 | 2002-10-26 | 임광희 | Package type-multistage reactor combining the upper part of aerobic fluidized biofilm process and the lower part of anoxic process |
| CN1506322A (en) * | 2002-12-10 | 2004-06-23 | 中国科学院生态环境研究中心 | Integrated biological denitrifying reactor |
| KR200332092Y1 (en) * | 2003-06-17 | 2003-11-10 | 주식회사 라파텍 | System for wastewater treatment using partition type anoxic basin and membrane basin |
| CN1868923A (en) * | 2005-05-24 | 2006-11-29 | 株式会社东芝 | Dephosphorize apparatus of sewage treatment plant |
| CN101468863A (en) * | 2007-12-28 | 2009-07-01 | 北京锦奥华荣科技有限公司 | Hospital waste water purification system |
| CN201313854Y (en) * | 2008-09-25 | 2009-09-23 | 中国科学院广州地球化学研究所 | Hypoxia/aerobic integrated air lift circulation biological reactor |
| JP2010089020A (en) * | 2008-10-08 | 2010-04-22 | Toshiba Corp | Waste water treatment apparatus |
| CN201390676Y (en) * | 2009-02-27 | 2010-01-27 | 天津市天水环保设计工程有限公司 | Micro-grid dynamic membrane bioreactor for continuously updating dynamic membrane |
| KR20110001685A (en) * | 2009-06-30 | 2011-01-06 | 코오롱건설주식회사 | External-submersed membrane separating film device |
| CN101928096A (en) * | 2009-12-28 | 2010-12-29 | 清华大学 | Sewage treatment method and system in ecological sensitive areas |
| CN201678559U (en) * | 2010-03-19 | 2010-12-22 | 申军波 | Sewage treatment device |
| WO2012067453A2 (en) * | 2010-11-17 | 2012-05-24 | Ahn Dae Hee | Apparatus and method for treating sewage/wastewater using biofilms and aerobic granular sludge |
| CN202430055U (en) * | 2012-02-01 | 2012-09-12 | 广州市环境保护工程设计院有限公司 | SBR (sequencing batch reactor) |
| CN202598647U (en) * | 2012-05-07 | 2012-12-12 | 黑龙江龙能伟业燃气股份有限公司 | Terrestrial heat and wall heat heating system for anaerobic dry fermentation equipment |
| CN102660454A (en) * | 2012-05-07 | 2012-09-12 | 黑龙江龙能伟业燃气股份有限公司 | Anaerobic dry fermentation equipment and anaerobic dry fermentation process using same |
| CN102659244A (en) * | 2012-05-22 | 2012-09-12 | 苏州科技学院 | Integrated internal circulation type denitrification and decarburization bio-membrane reactor and operating method thereof |
| WO2013183965A1 (en) * | 2012-06-09 | 2013-12-12 | 로스웰워터텍글로컬(주) | Membrane system and method for treating sewage and wastewater capable of automated removal/destruction of scum/foam with high energy efficiency, high flux and low operation costs and having process conversion method from constant level continuous batch reactor process |
| CN203333444U (en) * | 2013-06-30 | 2013-12-11 | 镇江清水环境科技有限公司 | Nitrogen enriching and removing combined system |
| CN203700116U (en) * | 2014-01-20 | 2014-07-09 | 天津机科环保科技有限公司 | Integrated efficient micro power biochemical treatment box |
| CN204529441U (en) * | 2014-12-26 | 2015-08-05 | 北京伊普国际水务有限公司 | A kind of membrane bioreactor scouring aerating system |
| CN106315969A (en) * | 2015-06-25 | 2017-01-11 | 麦王环境技术股份有限公司 | Integrated wastewater treatment equipment of IBR (integral biological reactor) and treatment process |
| CN205528307U (en) * | 2016-04-18 | 2016-08-31 | 河南力诚环保科技有限公司 | High concentration organic wastewater equipment based on UASB -MBR |
| CN105836878A (en) * | 2016-05-12 | 2016-08-10 | 北京易普优能科技有限公司 | Membrane bioreactor with duplex decoupling function |
| CN206570152U (en) * | 2016-12-13 | 2017-10-20 | 浙江问源环保科技股份有限公司 | A kind of small-sized integrated MBR sewage-treatment plants |
| CN206500031U (en) * | 2017-02-06 | 2017-09-19 | 无锡市锡东电力配套设备厂 | A kind of rubbish deodorization spray equipment |
| CN106830531A (en) * | 2017-02-24 | 2017-06-13 | 宜兴市建邦环境投资有限责任公司 | A kind of residual sludge reduction rural sewage treatment integrated apparatus |
| CN207671763U (en) * | 2018-01-04 | 2018-07-31 | 韩淇 | For the high nitrogen in low temp area, the constant temperature intelligence control MBR water treatment facilities of phosphorus sewage |
Non-Patent Citations (4)
| Title |
|---|
| A/O-MBR处理PTA综合废水中试研究;管国强;徐晓晨;柳丽芬;赵传起;安鹏;杨凤林;;工业水处理(10);全文 * |
| 叠层微单元生化污水深度净化技术探析;陈佳霖;;给水排水(05);全文 * |
| 复合式膜生物反应器强化脱氮除磷的实验研究;刘硕;王宝贞;王正;蒋轶锋;;现代化工(05);全文 * |
| 缺氧-好氧膜生物反应器处理高浓度氨氮废水;高宇学;文一波;;膜科学与技术(04);全文 * |
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