The device of inversion A AO+MBR integrated sewage disposals
The utility model is related to technical field of sewage treatment equipment, and in particular to a kind of inversion A AO+MBR integrated sewage waters
The device of processing.
Membrane bioreactor (Membrane Bio-reactor, MBR) technology is advanced water technology, is discharged product
Matter is high, technology maturation, and as the localization rate of parts and components of critical product-film product is higher and higher and market application is more and more universal, MBR
The investment cost and operating cost of film is gradually reduced.MBR membrane bioreactors are the technique that film and activated sludge are combined.Micro- life
The pollutant that film is retained down by object carries out the degradation of a deep step.MBR is by regular spoil disposal, to make internal system sludge concentration
Maintain balance.Currently, MBR technology is widely used in urban wastewater treatment field, water outlet can reach《Urban wastewater treatment firm is dirty
Contaminate object discharge standard》More than the level-one A standards in GB18918-2002, reach IV class standard of recycle water standard or surface water, quilt
It is widely used in the high project of standard of drainage or puies forward mark transformation project.
But there is also following defects for existing integration MBR sewage disposal systems：
1. Nitrogen/Phosphorus Removal is bad.Existing integration MBR sewage disposal devices are mostly (anoxic, good with AO+MBR techniques
Oxygen+MBR techniques) or AAO+MBR techniques (anaerobism, anoxic, aerobic+MBR techniques), AO+MBR techniques cannot realize that denitrogenation removes simultaneously
Phosphorus effect；AAO+MBR techniques are because of process intensification, and on the one hand flowing back into the mixed liquor of anoxic zone, to often result in anoxic zone dissolved oxygen dense
Height is spent, denitrification effect is influenced, on the other hand, flows back into the mixed liquor of anaerobic zone because influencing phosphor-removing effect containing nitrate；
2. it is higher to run power consumption.Because lectotype selection is unreasonable, equipment is more etc., cause operation power consumption to remain high；
3. equipment is not compact enough, floor space is larger.
The purpose of the utility model is to overcome the deficiencies in the prior art, and it is dirty to provide a kind of inversion A AO+MBR integrations
The device of water process.The device has the advantages that good sewage processing effect, energy-saving.
To achieve the above object, a kind of device of inversion A AO+MBR integrated sewage disposals designed by the utility model, it
Including sequentially connected anoxic pond, anaerobic pond, MBR membrane cisternas (being aerobic tank) and equipment room；The anoxic pond is far from anaerobic pond
Side outer wall bottom and anaerobic pond bottom surface are connected to sewage water inlet pipe respectively, and stirring is equipped in the anoxic pond and anaerobic pond
Device is provided with fixed suspension type flexible filler in the anoxic pond, and the anoxic pond is connected to anaerobic pond by diversion pipe, and is led
Flow tube is goed deep into anaerobic pond bottom, being connected to by anaerobism overflow pipe between the anaerobic pond and MBR membrane cisternas, MBR membrane cisternas bottom
On be provided with multigroup aeration head assembly, the aeration head assembly is connected by pipeline with the air blower in equipment room, described
It is provided with MBR film devices in MBR membrane cisternas, stripping reflux device, the stripping reflux device are provided with above the MBR film devices
Top is provided with return duct, and the return duct stretches into anoxic pond bottom, and production is provided on MBR film devices close to equipment room side
Further, the MBR film devices include MBR membrane modules, and the MBR membrane modules surrounding is provided with deflector, institute
It states water producing pipe to be connected to MBR membrane modules across deflector, is provided with and dips down at the top of the deflector of the anaerobic pond side
Oblique inclination deflector.
Still further, the inclination deflector angle of inclination is 1~15 °.
Still further, being correspondingly arranged on the solenoid valve of control aeration head assembly on pipeline between component and air blower.
Still further, being additionally provided with cleaning assembly in the equipment room, the cleaning assembly includes being arranged in parallel clearly
Water tank and dosing tank, the filtered water tank and dosing tank are connect with water producing pipe,
Still further, being additionally provided with flow control valve on the return duct.
Still further, being additionally provided with fluid level transmitter in the MBR membrane cisternas.
The beneficial effects of the utility model：
1) the utility model sewage and backflow mixed liquor enter anoxic zone after sufficiently mixing together；Nitric acid in sludge
Salt, remaining dissolved oxygen carry out anti-nitration reaction under the action of denitrifying bacterium, are nitrogen by nitrate transformation, realize and be
The preposition denitrogenation of system.
2) mixed-liquor return enters anaerobic pond to anoxic pond after denitrification in the utility model, avoids nitrate, molten
Solve adverse effect of the oxygen to anaerobic zone；
3) the utility model meets carbon source needed for denitrification, dephosphorization respectively using segmental influent；Part of contaminated water is directly entered
Anaerobic zone, polyP bacteria convert good carbon source in sewage to the ergastic substances such as Poly-β-hydroxybutyric acid (PHB), and it is dynamic that phosphorus is inhaled in accumulation
4) MBR membrane cisternas (being aerobic tank) are directly entered in the utility model after poly- phosphorus microorganism experience anaerobic environment,
Its suction phosphorus power formed under anaerobic environment has obtained utilization more efficiently；Sludge rich in phosphorus is periodically drained into from system
In sludge digestion tank, biological phosphate-eliminating is realized.
5) microorganism that cycle is participated in the utility model all experienced complete anaerobic-aerobic process, thus significantly carry
The nitrogen phosphorus of high system removes ability；
6) anaerobism hydrorrhea stream enters MBR membrane cisternas (being aerobic tank) in the utility model, comes with from film aeration drainage
Aerobic liquid be sufficiently mixed, improve the mass-transfer efficiency of oxygen.
7) the utility model carries out interior reflux using the head that film aeration generates, and eliminates reflux pump, saves energy.
Description of the drawings
Fig. 1 is the vertical view of the device of the utility model inversion A AO+MBR integrated sewage disposals；
Fig. 2 is the front view of the device of the utility model inversion A AO+MBR integrated sewage disposals；
In figure, anoxic pond 1, anaerobic pond 2, anaerobism overflow pipe 2.1, MBR membrane cisternas 3, exposes at fixed suspension type flexible filler 1.1
Gas head assembly 3.1, fluid level transmitter 3.2, equipment room 4, air blower 4.1, sewage water inlet pipe 5, blender 6, diversion pipe 7, MBR films
Device 8, water producing pipe 8.1, MBR membrane modules 8.2, deflector 8.3, tilt deflector 8.4, stripping reflux device 9, return duct 9.1,
Solenoid valve 10, cleaning assembly 11, filtered water tank 11.1, dosing tank 11.2, regulating valve 12.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so as to art technology
The device of inversion A AO+MBR integrated sewage disposals as shown in Fig. 1~2, it includes sequentially connected anoxic pond
1, anaerobic pond 2, MBR membrane cisternas 3 and equipment room 4；Anoxic pond far from anaerobic pond side outer wall bottom and 2 bottom surface of anaerobic pond respectively with dirt
Water water inlet pipe 5 is connected to, and is equipped with blender 6 in anoxic pond 1 and anaerobic pond 2, fixed suspension type flexibility is provided in anoxic pond 1 and is filled out
Material 1.1, anoxic pond 1 is connected to anaerobic pond 2 by diversion pipe 7, and diversion pipe 7 gos deep into 2 bottom of anaerobic pond, anaerobic pond 2 and MBR films
It is connected to by anaerobism overflow pipe 2.1 between pond 3, multigroup aeration head assembly 3.1 is provided on 3 bottom surface of MBR membrane cisternas, be aerated head assembly
3.1 are connected by pipeline with the air blower 4.1 in equipment room 4, and MBR film devices 8, MBR films dress are provided in MBR membrane cisternas 3
It includes MBR membrane modules 8.2 to set 8, and 8.2 surrounding of MBR membrane modules is provided with deflector 8.3,
There is water producing pipe 8.1 close to what equipment room side was provided through deflector 8.3 on MBR film devices 8；Close to anaerobism
8.3 top of deflector of 2 side of pond, which is provided with, tilts down the inclination deflector 8.4 that angle is 1~15 °；
8 top of MBR film devices is provided with stripping reflux device 9, and 9 top of stripping reflux device is provided with return duct 9.1, returns
Regulating valve 12 is additionally provided in flow tube 9.1, return duct 9.1 stretches into 1 bottom of anoxic pond, set on the side wall of the side of MBR film devices 8
It is equipped with water producing pipe 8.1.Fluid level transmitter 3.2 is additionally provided in MBR membrane cisternas 3.The pipe being aerated between head assembly 3.1 and air blower 4.1
The solenoid valve 10 of control aeration head assembly 3.1 is correspondingly arranged on line.
Cleaning assembly 11 is additionally provided in equipment room 4, the cleaning assembly 11 includes being arranged in parallel 11.1 He of filtered water tank
Dosing tank 11.2, the filtered water tank 11.1 and dosing tank 11.2 are connect with water producing pipe 8.1.
The device course of work of above-mentioned inversion A AO+MBR integrated sewage disposals：
1) sewage enters anoxic pond 1 by sewage water inlet pipe 5, is mixed with from 3 digestive juice of MBR membrane cisternas, denitrifying bacteria
Anti-nitration reaction is carried out using the carbon source in sewage realize denitrogenation in anoxic pond 1；The sewage of denitrogenation is entered by diversion pipe 7 to be detested
Oxygen pond 2, meanwhile, sewage enters anaerobic pond 2 by sewage water inlet pipe 5, and poly- phosphorus microorganism will be good in sewage in anaerobic pond 2
Carbon source is converted into the ergastic substances such as Poly-β-hydroxybutyric acid, the phosphorus stored in releaser, and phosphorus power is inhaled in accumulation；Then mixed liquor passes through
Anaerobism overflow pipe 2.1 enters MBR membrane cisternas 3, and under conditions of aeration, polyP bacteria absorbs the phosphorus in sewage, and storage in vivo, nitrifies
Bacterium converts the organic nitrogen in sewage to NO3-N and NO2-N nitrogen, and remaining organic matter is further degraded by microorganism；
2) purified sewage is flowed out with water producing pipe 8.1, and backflow mixed liquor passes through stripping reflux device 9 and return duct
9.1 are back to anoxic pond 1；
3) after hours, the liquid of filtered water tank 11.1 and dosing tank 11.2 is flowed back by water producing pipe 8.1 cleans MBR films dress
Other unspecified parts are the prior art.Although above-described embodiment is made that the utility model detailed
Description, but it is only the utility model a part of the embodiment, rather than whole embodiments, people can also be according to this implementations
Example obtains other embodiment under the premise of without creativeness, these embodiments belong to scope of protection of the utility model.