CN103159323A - Integrated A2/O-MBR reactor - Google Patents
Integrated A2/O-MBR reactor Download PDFInfo
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- CN103159323A CN103159323A CN2013100773768A CN201310077376A CN103159323A CN 103159323 A CN103159323 A CN 103159323A CN 2013100773768 A CN2013100773768 A CN 2013100773768A CN 201310077376 A CN201310077376 A CN 201310077376A CN 103159323 A CN103159323 A CN 103159323A
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Abstract
The invention discloses an integrated A2/O-MBR reactor. The integrated A2/O-MBR reactor comprises two guide plates, an aeration device, membrane assemblies, a perforated water-distribution plate, a filling material and a reaction tank. The two guide plates are symmetrically arranged in the center of the reaction tank. A vertical cross-section of an area sandwiched between the two guide plates has an inverted funnel shape of which the top is narrower than the bottom. An upper vertical area of the two guide plates is a membrane unit area. An area between lower inclined planes of the two guide plates is an aeration area. The aeration device is installed in the aeration area. A filling material unit area is formed between outer sides of the two guide plates and side walls of the reaction tank. The multiple membrane assemblies are installed in the membrane unit area. The membrane assemblies are connected to a water-connection main pipe by water-connection pipes. Each one of the membrane assemblies is an individually-operable membrane filtration unit composed of multiple membrane sheets and a frame. A water inlet pipe is connected to an upper part and a middle part of the filling material unit area. The integrated A2/O-MBR reactor has the characteristics of high denitrification and dephosphorization efficiency, small floor space and low energy consumption.
Description
Technical field
Integrated A 2/O-MBR reactor, relate to a kind of MBR reactor of optimizing configuration, take full advantage of aeration power, not only be used for the film surface erosion but also be used for anaerobic zone, oxygen-starved area and the Hydraulic Circulation in oxygen consumption district, make it have the high-efficient denitrification and dephosphorization function, take up an area the characteristics of little and less energy-consumption.The invention belongs to technical field of sewage, particularly the integrated film bio-reactor.
Background technology
Membrane Bio-reactor Technology is a kind of with membrane separation technique and the combined sewage treatment process of traditional biological processing unit.The second pond that this process using membrane sepn substitutes in conventional activated sludge process carries out mud-water separation, compares with traditional activated sludge process, have as little in floor space, effluent quality is good, capacity of resisting impact load is strong, the high superiority such as volumetric loading; But the shortcomings such as because its energy consumption is high, film pollutes, and denitrogenation dephosphorizing efficient is low, investment is higher have seriously hindered applying of it.Above-mentioned shortcoming be mainly, capacity usage ratio unreasonable due to structure of reactor not high due to.
Use at present more MBR and be mainly one immersion MBR and split type MBR.One immersion MBR refers to the membrane module with aerating apparatus directly is placed in the aerobic reaction pond, normally moves for keeping MBR, improves face and washes away cross-flow velocity and delay film and pollute, and has adopted the boring aeration pipe aeration mode.Aeration rate must guarantee that the minimum cross-flow velocity of face requires and the needed oxygen amount of the biochemical normal reaction in aeration tank, and aeration rate is more than 3 times of conventional activated sludge process.The oxygen transfer efficient of this kind aeration mode is low, and less than 17%, and the effective rate of utilization of the face aeration energy consumption of washing away is less than 30%, so aeration energy consumption is huge, and utilization ratio is not high; Moreover, cause in reaction tank strictly aerobicly in the MBR pond because aeration rate is huge, fail to form the necessary anaerobic/anoxic of denitrogenation dephosphorizing and aerobic Hydraulic Circulation condition, cause denitrogenation dephosphorizing efficient very low, nitrogen removal rate generally is being 15-20%, sometimes almost without removal effect.Still adopt at present pump reflux mud to arrange previously anaerobic pond, anoxic pond form the effect that Hydraulic Circulation improves its denitrogenation dephosphorizing, not only increased the floor space of reactor, more strengthened the demand of MBR to energy consumption.This type of denitrification and dephosphorization MBR combined reactor has just increased the membrane sepn process on traditional A2/O, replaced secondary sedimentation basins, only improve sludge concentration and reduced floor space, make but with high investment and high maintenance cost that high running cost that aeration energy consumption in operational process produces and cleaning agent consumption, high price mould material, membrane module replacing produce, offset its superiority, seriously hindered applying of MBR technology.Although the engineering example more than ton, the problems referred to above still exist, and do not obtain basic solution.
Split type MBR refers to that membrane filtration pond (or membrane module unit) and biological reaction tank separate separately laying, and the exchange of the mixed solution between them adopts recycle pump or H circulation tube to complete.Adopt the split type MBR of airlift circulation of recycle pump to refer to be placed in outside biological reaction tank with the membrane module of aerating apparatus, its advantage is complete set and equipment, clean and maintenance is more convenient, but for obtaining suitable membrane face cross-flow velocity, must increase pump horsepower and increase energy consumption, and energy consumption is generally all much larger than above-mentioned one immersion MBR.Simultaneously the split type MBR of this kind does not relate to the denitrogenation dephosphorizing aspect, and Nitrogen/Phosphorus Removal is relevant with the effect in biological reaction tank, has nothing to do with membrane cisterna.
Adopt the split type MBR of gas lift of H circulation tube to refer to that the membrane filtration pond is separated with partition wall with biological reaction tank, utilize the airlift circulation principle, because the membrane filtration pond produces impellent from the density variation of the different formation of biological reaction tank aeration rate, the mixed solution in two ponds is constantly exchanged by the H circulation tube.The alternative pump reflux mud of the application of airlift circulation principle and H circulation tube has greatly reduced energy consumption; But biological reaction tank and membrane filtration pond are divided and are arranged, can not form the needed envrionment conditions of denitrogenation dephosphorizing on structure, denitrogenation dephosphorizing also can only solve by preposition anaerobic pond, anoxic pond, and energy consumption problem gets to a certain extent to be alleviated, but is not still solved to a large extent.
Summary of the invention
The object of the present invention is to provide a kind of integrated A 2/O-MBR reactor, by configuration optimization, make the MBR reactor have the little characteristics of high-efficient denitrification and dephosphorization ability, less energy-consumption and occupation of land.
For achieving the above object, integrated A 2/O-MBR reactor provided by the invention mainly is comprised of flow deflector, aerating apparatus, membrane module, perforation water distribution board, filler and reaction tank pond body; Wherein:
The reaction tank pool center is arranged symmetrically with two flow deflectors, between two flow deflectors, the vertical cross-section in folded zone is up-small and down-big upside down funnel shape, the top of two flow deflectors vertically zone is the film unit district, zone between the lower bevel of two flow deflectors is the aeration zone, in this aeration zone, aerating apparatus is installed, between the pool wall of the flow deflector outside and both sides reaction tank, the zone is the filler unit district;
Some groups of membrane modules are arranged in the film unit district; Membrane module is connected with water header by header; Membrane module is the membrane filter unit that can operate separately by some diaphragms and system framework thereof; Inlet channel bonding pad cellular zone top and middle part.
Described integrated A 2/O-MBR reactor, wherein, the film unit district is 1 with aeration zone bottom width ratio: 3-6, aspect ratio is 1: 1.25-2; The bottom of flow deflector higher than reaction tank at the bottom of 40-60cm, and the space of 20-50cm is arranged, the water liquid level face when the flow deflector above 15-40cm in top is the reaction tank operation between the pool wall of reaction tank both sides.
Described integrated A 2/O-MBR reactor, wherein, the diaphragm in membrane module is hollow-fibre membrane and flat sheet membrane, its framework periphery is not sealed.
Described integrated A 2/O-MBR reactor, wherein, the filler unit district is equipped with filler, and filler adopts the soft-filler of honeycomb filler, porous suspended filler and bunchiness.
Described integrated A 2/O-MBR reactor, wherein, aerating apparatus is installed on 20-50cm place at the bottom of the reaction tank, adopts boring aeration pipe or microporous aeration disc or micropore aeration pipe or the combination between them.
Described integrated A 2/O-MBR reactor, wherein, top, filler unit district is equipped with the perforation water distribution board, the hole shape of perforation water distribution board is platoon aperture or elongated square opening gap, the medullary ray that the center, hole is linked to be or the medullary ray in gap are parallel with flow deflector, far away apart from flow deflector, its aperture or gap are larger.
Described integrated A 2/O-MBR reactor, wherein, top, filler unit district is 1 with the flooding velocity ratio of the inlet channel at middle part: 3-4.
Described integrated A 2/O-MBR reactor wherein, is separated into an independently water treatment operating unit every some length on film unit section length direction.
reactor of the present invention is used airlift circulation principle and nitric efficiency formula, under the multistage principle of utilizing aeration energy consumption instructs, the MBR configuration that face is washed away the common requirement of hydraulics and denitrogenation dephosphorizing envrionment conditions has carried out designing and giving the CFD simulative optimization, take full advantage of the power that biological unit air-blowing oxygen supply produces, not only be used for the film surface erosion but also be used for anaerobic zone, the Hydraulic Circulation in oxygen-starved area and oxygen consumption district, again in conjunction with MBR mud-water separation performance characteristics, develop and have high-efficient denitrification and dephosphorization, less energy-consumption, take up an area the little new configuration of integrated A 2/O-MBR, and make it modularization and suite of equipment, not only to improve the denitrogenation dephosphorizing ability of MBR, also to further reduce its operation energy consumption, carry the mark upgrading for the some source problem that causes the serious eutrophication of water body that solve to disperse and existing sewage work gordian technique is provided.
The present invention compares with existing conventional MBR technology, has the following advantages and the high-lighting effect:
(1) have the characteristics of denitrogenation dephosphorizing, less energy-consumption.according to configuration and functional dependency, with denitrogenation dephosphorizing, the functional requirement unified fusion such as the multistage utilization of aeration energy consumption are in the single reactor through optimizing configuration, to the membrane module district, the aeration zone, the filler unit district, flow deflector carries out well-designed and arranges, at up-small and down-big inverted funnelform water conservancy diversion, fully concentrate the power of the air-blowing oxygen supply generation of aeration zone, not only be used for the film surface erosion but also be used for anaerobic zone, the Hydraulic Circulation in oxygen-starved area and oxygen consumption district, again in conjunction with MBR mud-water separation performance characteristics, form face and washed away the integrated A 2/O-MBR configuration of the common requirement of hydraulics and denitrogenation dephosphorizing envrionment conditions, make it have the characteristics of high-efficient denitrification and dephosphorization ability and less energy-consumption, reach the perfect unity of configuration and function.
(2) the large suitability that improves practical engineering application of modular design.Modularization refers to also to divide the array configuration that several can operate separately the unit for treating water of operation in reactor, and the combination of several single unit for treating water can be processed the sewage quantity of different scales.And the treatment capacity of unit for treating water and size are decided by filtration area and the size of membrane module in it.Therefore modular design not only adapts to extensive sewage disposal requirement, also can adapt to the requirement of small-sized sewage disposal device.Large unit for treating water can be applied directly to the sewage work of thousands of tons, the little complete set made sewage disposal device, and the processing power of equipment and physical dimension also can be selected.Therefore modular design can make integral type A2/O-MBR can greatly adapt to treatment scale and on-the-spot physical condition, can be promoted rapidly in large small-scale engineering is used.
(3) membrane module top set, membrane module separate with aerating apparatus, simplified design and the unit for treating water modular design of membrane module outside framework, not only greatly improve the simplicity of operation, but also decrease labour intensity.The film unit district is placed in top, pond, and the lift height up and down of membrane module reduces greatly, and the water yield that does not also need to discharge in a large number in reaction tank reduces the operational requirement that water level satisfies the lifting membrane module, and operation Labor Safety and intensity reduce greatly.Because membrane module and aerating apparatus separate design, can significantly reduce the weight of membrane module, the lifting workload when promoting the membrane module framework and can complete the cleaning of membrane module, dismounting, installation.Due to the outer flow deflector without traditional sealing of framework, the diaphragm in framework can be easy to insert or take out, and installation and removal are very convenient, and labour intensity reduces greatly.The unit for treating water modular design can be carried out during the external cleaning of membrane module in batches, and each rinsing membrane module quantity can be selected 1-2 according to the size in matting pond, not only can reduce chemical drugs dosage as far as possible, also can guarantee the quality of matting.Moreover, do not affect the normal steady running of whole reactor during the matting of 1-2 membrane module, can adapt to the actual requirement of large-scale engineering applications.
Description of drawings
The integrated A2/O-MBR plot plan of Fig. 1
Fig. 2 is along the sectional view of A-A line in Fig. 1
Nomenclature in accompanying drawing:
1 membrane module, 2 fillers, 3 flow deflectors, 4 aerating apparatuss, 5 suction pumps, 6 intake pumps, 7 gas blowers, 8 sludge pumps, 9 perforation water distribution boards, 10 online chemical cleaning pumps, 11 loose joints, 12 header valves, 13 water headers.
Embodiment
Integrated A 2/O-MBR of the present invention, its principle is based upon on the basis of nitric efficiency formula and airlift circulation principle.
The nitric efficiency formula is:
η％＝R/(1+R)
By formula as can be known: nitric efficiency and return sludge ratio R positive correlation, R is larger, and nitric efficiency η % is higher, and when R trended towards infinity, the efficient of denitrogenation trended towards 100%.
The airlift circulation principle is that the inside and outside mixed solution of flow deflector causes under the spontaneous impellent effect of density variation in the aeration rate difference and is circulated continuously, constantly circulate aerobic, the anoxic of experience, anaerobic environment of active sludge in this process, show by the CFD analog result, R is very large, satisfies high denitrification percent fully to the requirement of high R.Moreover, utilize airlift circulation also alternative traditional sludge circulation adopt the power consumption of pump, thereby greatly reduce energy consumption.
Further reduce energy consumption thereby adopt up-small and down-big funnelform flow deflector can concentrate the aeration power second stage employ to wash away in face, thereby visualize above-mentioned integrated A 2/O-MBR configuration.And rising area (film unit district) is most important to the treatment effect of reactor with the ratio in the district (filler unit district) that descends, therefore, to under equal height and aeration condition, the width ratio of choosing rising area and the district that descends was respectively 1: 1 and 1: 2.5 two configuration carries out the CFD simulation, its result shows, the width ratio in rising area and the district that descends is that the Flow Field Distribution of 1: 2.5 o'clock MBR is more reasonable with the DO distribution, therefore, has determined the configuration of the reactor of integrated A 2/O-MBR.
According to the result of study of present inversion A 2/O-MBR, take segmental influent can improve denitrogenation dephosphorizing efficient, therefore water inlet is carried out properly distributed at oxygen-starved area and the anaerobic zone in the decline zone of reactor, can further improve the reactor Nitrogen/Phosphorus Removal.A2/O-MBR ammonia nitrogen removal efficient is between 90-95%, and nitrogen removal rate is at 70-90%, and dephosphorization efficiency by using is at 75-85%.
In practical engineering application, membrane module is positioned at reactor head and film framework simplified design, is convenient to artificial rust and installs and the safety operation of cleaning.
In sum, the integrated A 2/O-MBR that has high-efficient denitrification and dephosphorization, a less energy-consumption is principle and technical can the realization fully on engineering.
Integrated A 2/O-MBR reactor of the present invention, the flow deflector 3 of mainly being installed by the Chi Tizhong at reaction tank, aerating apparatus 4, membrane module 1 and perforation water distribution board 9 form, and wherein can also include filler 2.Concrete structure is that the pool center at reaction tank is arranged symmetrically with two flow deflectors 3, between flow deflector 3, the vertical cross-section in folded zone is up-small and down-big upside down funnel shape, its top vertically zone is the film unit district, zone between lower bevel is the aeration zone, and the zone between the pool wall of flow deflector 3 outsides and reaction tank both sides is the filler unit district.The film unit district is 1 with the aeration zone bottom width than preferably: 3-6, aspect ratio is preferably 1: 1.25-2, the bottom of flow deflector 3 is preferably higher than 40-60cm at the bottom of the pond, and the water liquid level face when having the space of 20-50cm, the flow deflector 3 above 15-40cm in top to be the reactor operation between the pool wall of both sides.Some groups of membrane modules 1 are installed in the film unit district, and membrane module 1 refers to that diaphragm wherein can adopt hollow-fibre membrane and flat sheet membrane by the membrane filter unit that can operate separately of some diaphragms and system framework thereof, and its framework periphery is not sealed.The filler unit district can install or uneasy filling material 2 (in accompanying drawing be filler 2 is installed be example), and filler 2 can adopt the soft-filler of honeycomb filler, porous suspended filler and bunchiness.Aerating apparatus 4 is installed on 20-50cm place at the bottom of the pond, can adopt boring aeration pipe or microporous aeration disc or micropore aeration pipe or the combination between them.Perforation water distribution board 9 is positioned at top, filler unit district, and hole shape is platoon aperture or square opening gap, and the medullary ray that the center, hole is linked to be or the medullary ray in gap are parallel with flow deflector 3, and be far away apart from flow deflector 3, and its aperture or gap are larger.Water inlet enters from top and the middle part two positions point in filler unit district respectively, and its throughput ratio is preferably 1: 3-4.
Integrated A 2/O-MBR reactor of the present invention adopts modular design, namely be divided into an independently water treatment operating unit every some length on film unit section length direction, its processing power and size are decided by membrane filtration area and the size of the membrane module in it, and the processing power of sewage disposal device or sewage work can be completed by the combination of several water treatment operating units.
Integrated A 2/O-MBR of the present invention, the functional requirement unified fusion such as the denitrogenation dephosphorizing that its configuration is had with it, the multistage utilization of aeration energy consumption are in single reactor, to the chief component elements such as film unit district, aeration zone, filler unit district, flow deflector carry out well-designed with arrange, utilize the aeration impellent, aeration zone and film unit district self-assembling formation upwelling, the district forms the district that descends at filler unit, and mixed solution is constantly circulated with the district that descends in the rising area.The power that inverted funnel-form flow deflector can fully concentrate the air-blowing oxygen supply of aeration zone to produce, not only be used for the film surface erosion but also be used for anaerobic zone, oxygen-starved area and the Hydraulic Circulation in oxygen consumption district, again in conjunction with MBR mud-water separation performance characteristics, formed face and washed away the integrated A 2/O-MBR configuration of the common requirement of hydraulics and denitrogenation dephosphorizing envrionment conditions, made integrated A 2/O-MBR reactor have high-efficient denitrification and dephosphorization, take up an area the characteristics of little and less energy-consumption.Reach the perfect adaptation of configuration and function.
Explain detailedly below in conjunction with drawings and Examples, understand the present invention with further.
(1) reactor assembling: after the reaction tank body is completed, in the aeration zone at the bottom of the pond 20-50cm place installation aerating apparatus 4, and aerating apparatus 4 use are connected with gas blower 7 by gas distribution pipe.The aeration zone is put in the shore pipe import and be connected with sludge pump 8.Two flow deflectors 3 are installed on symmetrically the both sides, center of reaction tank.Membrane module 1 is packed in the film unit district, its header is connected with water header 13 with header valve 12 by loose joint 11, water header 13 is connected with suction pump 5 water-ins.Filler 2 or uneasy filling material 2 can be installed by the filler unit district.Water inlet enters respectively top, filler unit district and middle and lower part by intake pump 6 through the inlet channel distribution.Top installation perforation water distribution board 9 in the filler unit district.The rising pipe of online chemical cleaning pump 10 is connected between loose joint 11 and header valve 12, electric installation such as pump, gas blower etc. are connected with automatic control system.
(2) reactor debugging: after integral type A2/O-MBR system installs, suction pump 5, intake pump 6, gas blower 7, sludge pump 8, online chemical cleaning pump 10 are carried out the unit trial trip, leakage detection fill a vacancy qualified after, be filled with clear water in reactor, its liquid level is exceeded between flow deflector 3 top 20-50cm, can begin the clear water debugging, parameter to automatic control system is adjusted, comprise that flooding quantity, aeration rate, the suction pump 5 of 2 taken out between the stopping time, made it meet the predetermined functional requirement of each system.Emptying clear water starts intake pump 6 and fills sewage to reactor, makes its liquid level exceed flow deflector top 20-50cm, and place with good conditionsi can be dropped into the active sludge of inoculation simultaneously, and sludge concentration is not less than 1g/L.Start gas blower 7 by 4 pairs of sewage oxygenic aerations of aerating apparatus.Automatic running status is got in the operation of reactor, can be by the primary flux commissioning test of 1/4-1/2 at full capacity; When sludge concentration rises to 6g/L, can be enlarged to oepration at full load; When sludge concentration surpasses 9-12g/L, spoil disposal periodically, sludge volume is undertaken by the sludge age of setting.
(3) the automatic long-time running of reactor: the robot control system(RCS) of reactor is transferred to automatic running status, following process can be completed automatically: start gas blower by aerating apparatus to the aeration zone aeration, reactor starts intake pump 6 water inlets when low-water level, stopping intake pump 6 when high-water stops into water, suction pump 5 cyclical intermission operations, taking out between the stopping time is 4min:1min.
(4) membrance chemistry cleans: the matting of film is included in linearize and cleans and external submergence cleaning, close aerating apparatus and the valve on header 12 of membrane module 1 correspondence that needs online matting, the chlorine bleach liquor who prepares 0.1-0.3% is passed through online chemical cleaning pump 10 in header inverse injection membrane module 1, can complete the online matting of membrane module after standing 90-120min.The process of external matting is as follows: 0.3% the chlorine bleach liquor who prepares in the matting pond, close the header valve 12 of the membrane module 1 that needs matting, and loose joint 11 is disconnected, membrane module proposes, after diaphragm is taken out and rinses well, put into matting pond immersion about 24 hours, can complete the external submergence matting of diaphragm.The interior component film assembly 1 of the former framework of packing into after diaphragm after matting is complete rinses is sent the original place back to through lifting gear, connects the loose joint 11 on header, opens header valve 12, and the membrane module 1 after cleaning can be reworked.Also can not dismantle diaphragm, the membrane module 1 that needs are cleaned proposes and rinses well the rear matting pond immersion about 24 hours of directly putting into, and the outer submergence of perfect aspect is cleaned.The membrane module 1 that has cleaned reintroduces and replaces after rinsing well and connect loose joint 11, opens header valve 12, and the membrane module 1 after cleaning can rerun.Because external submergence cleaning operation can carry out in batches, every batch can be defined as 1-2 group membrane module, does not affect the operation of other membrane module of reactor, can satisfy the continuous operating requirement of engineering.
Claims (5)
1. integrated A 2/O-MBR reactor is comprised of flow deflector, aerating apparatus, membrane module, perforation water distribution board, filler and reaction tank pond body; Wherein:
The reaction tank pool center is arranged symmetrically with two flow deflectors, between two flow deflectors, the vertical cross-section in folded zone is up-small and down-big upside down funnel shape, the top of two flow deflectors vertically zone is the film unit district, zone between the lower bevel of two flow deflectors is the aeration zone, in this aeration zone, aerating apparatus is installed, between the pool wall of the flow deflector outside and both sides reaction tank, the zone is the filler unit district;
Some groups of membrane modules are arranged in the film unit district; Membrane module is connected with water header by header; Membrane module is the membrane filter unit that can operate separately by some diaphragms and system framework thereof; Inlet channel bonding pad cellular zone top and middle part;
The film unit district is 1 with aeration zone bottom width ratio: 3-6, and aspect ratio is 1: 1.25-2; The bottom of flow deflector higher than reaction tank at the bottom of 40-60cm, and the space of 20-50cm is arranged, the water liquid level face when the flow deflector above 15-40cm in top is the reaction tank operation between the pool wall of reaction tank both sides;
Top, filler unit district is equipped with the perforation water distribution board, and the hole shape of perforation water distribution board is platoon aperture or elongated square opening gap, and the medullary ray that the center, hole is linked to be or the medullary ray in gap are parallel with flow deflector, and be far away apart from flow deflector, and its aperture or gap are larger;
Top, filler unit district is 1 with the flooding velocity ratio of the inlet channel at middle part: 3-4.
2. integrated A 2/O-MBR reactor according to claim 1, wherein, the diaphragm in membrane module is hollow-fibre membrane and flat sheet membrane, its framework periphery is not sealed.
3. integrated A 2/O-MBR reactor according to claim 1, wherein, the filler unit district is equipped with filler, and filler adopts the soft-filler of honeycomb filler, porous suspended filler and bunchiness.
4. integrated A 2/O-MBR reactor according to claim 1, wherein, aerating apparatus is installed on 20-50cm place at the bottom of the reaction tank, adopts boring aeration pipe or microporous aeration disc or micropore aeration pipe or the combination between them.
5. integrated A 2/O-MBR reactor according to claim 1, wherein, be separated into an independently water treatment operating unit every some length on film unit section length direction.
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| CN104743666A (en) * | 2015-02-28 | 2015-07-01 | 北京大齐科技有限公司 | Novel low energy consumption integrated A2/O-MBR reactor |
| CN104843945A (en) * | 2015-05-11 | 2015-08-19 | 北京大齐科技有限公司 | Novel low-energy MBR (Membrane Bioractor) sewage treatment complete equipment and remote control system |
| CN105417881A (en) * | 2015-12-21 | 2016-03-23 | 山东国辰实业集团有限公司 | Self-circulating biological membrane denitrifying sewage treatment equipment |
| CN109354193A (en) * | 2018-12-14 | 2019-02-19 | 广西南宁绿泽环保科技有限公司 | A kind of central source hybrid mbr and its method for sewage treatment |
| CN110372097A (en) * | 2019-08-12 | 2019-10-25 | 桂润环境科技股份有限公司 | A kind of energy-saving tower inner circulation reactor |
| CN111285464A (en) * | 2020-01-23 | 2020-06-16 | 浙江开创环保科技股份有限公司 | Vertical consumption-reducing integrated sewage treatment device and use method thereof |
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| CN109354193A (en) * | 2018-12-14 | 2019-02-19 | 广西南宁绿泽环保科技有限公司 | A kind of central source hybrid mbr and its method for sewage treatment |
| CN110372097A (en) * | 2019-08-12 | 2019-10-25 | 桂润环境科技股份有限公司 | A kind of energy-saving tower inner circulation reactor |
| CN110372097B (en) * | 2019-08-12 | 2024-06-25 | 桂润环境科技股份有限公司 | Method for treating wastewater by using energy-saving tower type internal circulation reactor |
| CN111285464A (en) * | 2020-01-23 | 2020-06-16 | 浙江开创环保科技股份有限公司 | Vertical consumption-reducing integrated sewage treatment device and use method thereof |
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Application publication date: 20130619 |