CN206940545U - A2O2+MBR processing units - Google Patents
A2O2+MBR processing units Download PDFInfo
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- CN206940545U CN206940545U CN201720742726.1U CN201720742726U CN206940545U CN 206940545 U CN206940545 U CN 206940545U CN 201720742726 U CN201720742726 U CN 201720742726U CN 206940545 U CN206940545 U CN 206940545U
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Abstract
Septic tank+A202 processing units, belong to field of Environment Protection, and sewage disposal recycles field；Including：Water inlet, sedimentation basin, septic tank, depositing reservoir, connecting tube, anaerobic pond, anoxic pond, micro- oxygen pond, Aerobic Pond, membrane cisterna, MBR membrane modules, Ball-type packing, MBBR fillers, outlet pipe, aeration head, aeration branch pipe, aeration supervisor, gas control valve, aerator, mud return line, nitrification liquid return duct, bacteria bed, self priming pump；By the isolation technics of film, greatly improve activated sludge concentration, its hydraulic detention time and sludge retention time control respectively；Efficient separation of solid and liquid, effluent quality high-quality stable, surplus sludge volume is few, and floor space is small, removes hardly degraded organic substance, overcomes the drawbacks of sludge bulking easily occurs for traditional active sludge.It can be widely used in sewage treatment area.
Description
Technical field
The invention belongs to field of Environment Protection, more particularly to sewage disposal, water resource filtering biological processing recycling field.
Background technology
Field of Environment Protection, especially sewage disposal are the important steps of current town and country water supply and sewage work, existing municipal sewage treatment
The renewal upgrading of factory, particularly effluent quality are difficult to up to standard or processing flow and increased severely and water factory that floor space can not expand；Nothing
The cell of sewerage pipeline network, such as residential area, travel resort, scenic spot；There are the area or place of reusing sewage demand, such as
Hotel, car wash trade, passenger plane, Portaloo etc. are required to sewage disposal device.Existing sewage disposal device technique has：A2O2
（That is anaerobic-anoxic-micro- oxygen-aerobic activated sludge process）, A1:Anaerobic pond, organic matter is carried out under anaerobic using anaerobic bacteria
Degraded and phosphorus release；A2：Anoxic pond, nitrification liquid are back to anoxic pond, and degradation of organic substances is same under anoxic conditions for oxygen bacterium
The denitrification of Shi Jinhang nitrate, so as to remove total nitrogen, O1:Micro- oxygen pond, aerobic bacteria under micro-oxygen conditions degradation of organic substances, by ammonia
Nitrogen degradation absorbs phosphorus into nitrite, O2：Aerobic Pond, under the dissolved oxygen conditions of abundance, remained in aerobic bacteria degraded sewage
Remaining organic matter, ammonia nitrogen, further absorb phosphorus, while nitrite is further oxidized into nitrate.The technique is substantially
Polluter is removed using the effect of microorganism, therefore, second pond is connect after biochemical, carries out mud-water separation, second pond is profit
With the effect of gravity, microorganism is allowed to carry out natural subsidence in second pond.One side second pond is continuum micromeehanics continuous effluent,
Due to the flowing of water, certain agitation can be brought, so not only influences whether the natural subsidence of sludge, and second pond bottom is
Sludge through sedimentation as the agitation of current and rise, cause aqueous suspension increase；On the other hand, it is deposited in second pond
The sludge of bottom, under long-time anoxia condition, sludge can carry out denitrification, bubble be produced in water, and drive bottom
Portion's Mud up-floating, it so may result in system and go out aqueous suspension increase, water quality is not up to standard.Need to invent efficient separation of solid and liquid,
Effluent quality high-quality stable sewage disposal device and technique.
The content of the invention
In place of overcome the deficiencies in the prior art, to invent a kind of A2O2+MBR processing units.
A2O2+MBR processing units include：Water inlet, anaerobic pond, anoxic pond, micro- oxygen pond, Aerobic Pond, membrane cisterna are spherical to fill out
Material, MBBR fillers, outlet pipe, aerator, mud return line, nitrification liquid return duct, self priming pump；Aerator refers to be aerated
Head, aeration branch pipe, aeration supervisor, gas control valve, aerator；Bacteria bed is installed in anaerobic pond, anoxic pond, biology
It is placed with Ball-type packing in filter bed, the Ball-type packing in bacteria bed is fixed；Placed in micro- oxygen pond, Aerobic Pond
There are MBBR fillers, MBBR fillers are moveable；MBR membrane modules are installed in membrane cisterna；In anaerobic pond, anoxic pond, micro- oxygen
Pond, Aerobic Pond, access hole is mounted at the top of membrane cisterna, self priming pump is installed in outlet pipe；Aerobic Pond and anoxic pond top it
Between nitrification liquid return duct is installed；Aerator is mounted in micro- oxygen pond, Aerobic Pond, membrane cisterna.
Aeration supervisor and aerator are installed at the top of the ectosome of A202+MBR processing units, in the centre of aeration branch pipe
And it is mounted on gas control valve between aeration branch pipe and aeration supervisor；Bacteria bed is grid box, the top of casing away from
Water pipe low side 98-168mm is separated out, the bottom of casing is apart from pond inner bottom part 385-428mm.The top of casing is apart from outlet pipe low side
Preferably 120mm, the bottom of casing are preferably 420mm apart from pond inner bottom part.
In sewage disposal process, the Ball-type packing in bacteria bed is to be fixedly mounted, and aeration is arranged at bottom in Aerobic Pond
Device, the MBBR fillers in bacteria bed are moveable.
The annexation of A202+MBR processing units is：It is provided with the left upper part of A202+MBR processing units into water
Mouthful, sewage enters anaerobic pond by water inlet；Anaerobic pond handles water with being connected at the top of anoxic pond, in anaerobic pond and flowed into from top
Anoxic pond；Anoxic pond is connected with the bottom in micro- oxygen pond, and water is handled in anoxic pond and is flowed into micro- oxygen pond from bottom；Micro- oxygen pond with it is aerobic
Connected at the top of pond, water is handled in micro- oxygen pond and flows into Aerobic Pond from top；Aerobic Pond handles water with being connected at the top of membrane cisterna in Aerobic Pond
Membrane cisterna is flowed into from top；MBR membrane modules and aerator are installed, on the one hand the effect of aerator is to fill in the middle part of membrane cisterna
Oxygen, on the other hand it is to be mixed and recoiled, prevents MBR membrane modules to be blocked.Pacify on A202+MBR processing unit right-hand members top
Equipped with outlet pipe, the processing water of membrane cisterna is filtered by MBR membrane modules, and MBR membrane modules connect with outlet pipe, outlet pipe and self priming pump
Connection, self priming pump extract filtered water out.
The sewage disposal principle of A202+MBR processing units is：For insufficient existing for traditional A20 techniques, according to engineering
Experience, A2O2+MBR techniques are proposed, traditional second pond is replaced using MBR films；This is the filtration using film by biochemistry
Activated sludge and larger molecular organicses in reaction tank retain；MBR films retain efficiency high, therefore can reduce floor space, lead to
The isolation technics for crossing film enhances the function of bioreactor significantly, greatly improves activated sludge concentration, during its hydraulic retention
Between（HRT）And sludge retention time（SRT）It can control respectively.
Nominal definition：On：It is upward with earth horizontal plane；
Under：It is upward with earth horizontal plane；
It is left：A left side is defined as in face of the positive left side of equipment；
It is right：The right side is defined as in face of the positive the right of equipment；
MBR:(Membrane Bio-Reactor) membrane bioreactor；
MBBR:(Moving Bed Biofilm Reactor) MBBR.
The technological progress of this A202+MBR processing units is：The technology path of use is A2O2+MBR techniques, utilizes MBR
Film replaces traditional second pond；The technique effect reached this be using the filtration of film will be in biochemical reaction tank activity it is dirty
Mud and larger molecular organicses retain；MBR films retain efficiency high；The technical purpose of realization is to reduce floor space, passes through film
Isolation technics enhances the function of bioreactor significantly, greatly improves activated sludge concentration, its hydraulic detention time（HRT）
And sludge retention time（SRT）It can control respectively；Convenient operation and management, it is easy to accomplish automatically control；Efficient separation of solid and liquid,
Effluent quality high-quality stable, surplus sludge volume is few, and floor space is small, and without second pond, process equipment is concentrated.It can remove difficult degradation
Organic matter.Overcome the drawbacks of sludge bulking easily occurs for traditional active sludge.
Brief description of the drawings
Fig. 1 processing unit sewage treatment process figures；
Fig. 2 processing device structure diagrams；
In figure：The micro- oxygen pond of 1- water inlets, 2- anaerobic ponds, 3- anoxic ponds, 4-, 5- Aerobic Ponds, 6- membrane cisternas, 7- Ball-type packings,
8-MBBR fillers, 9- outlet pipes, 10- inspection sockets, 11- aeration heads, 12- aeration branch pipes, 13- aerations supervisor, 14- gases are adjusted
Save valve, 15- aerators, 16- mud return lines, 17- nitrification liquids return duct, 18- self priming pumps, 19-MBR membrane modules.
Embodiment
Embodiment one
Implement this patent in sewage disposal building site.
A2O2+MBR processing units include：Water inlet 1, anaerobic pond 2, anoxic pond 3, micro- oxygen pond 4, Aerobic Pond 5, membrane cisterna 6, ball
Shape filler 7, MBBR fillers 8, MBR membrane modules 19, outlet pipe 9, inspection socket 10, aerator, mud return line 16, nitrification liquid
Return duct 17, self priming pump 18；Aerator refers to aeration head 11, aeration branch pipe 12, aeration supervisor 12, gas control valve 14, exposes
Gas equipment 15；Bacteria bed is installed in anaerobic pond 2, anoxic pond 3, Ball-type packing 7, bacteria bed are placed with bacteria bed
In Ball-type packing 7 be fixed；MBBR fillers 8 are placed with micro- oxygen pond 4, Aerobic Pond 5, MBBR fillers 8 are removable
Dynamic；MBR membrane modules 19 are installed in membrane cisterna 6；Anaerobic pond 2, anoxic pond 3, micro- oxygen pond 4, Aerobic Pond 5, membrane cisterna 6 top
Access hole 10 is mounted on, self priming pump 18 is installed in outlet pipe 9；Nitrification liquid is installed between Aerobic Pond 5 and the top of anoxic pond 3
Return duct 17；Aerator is mounted in micro- oxygen pond 4, Aerobic Pond 5, membrane cisterna 6.
Aeration supervisor 13 and aerator 15 are installed at the top of the ectosome of A202+MBR processing units, in aeration branch pipe 12
Centre and aeration branch pipe 12 and aeration supervisor 15 between be mounted on gas control valve 14；Bacteria bed is grid box,
The top of casing is apart from the low side 120mm of outlet pipe 9, and the bottom of casing is apart from pond inner bottom part 420mm.
In sewage disposal process, the Ball-type packing 7 in bacteria bed is to be fixedly mounted, and exposure is arranged at bottom in Aerobic Pond 5
Device of air, the MBBR fillers 8 in bacteria bed are moveable.
With 2t（）/d（My god）Treating capacity exemplified by, inflow is 83L during continuous operation in theory（Rise）/h（Hour）, it is real
Border can also be according to actual amount of water intermittent water inflow when running.
Pending water outlet enters anaerobic pond 2 from water inlet 1, and the residence time is 2 hours in anaerobic pond 2, dischargeable capacity
166 liters, afterwards into anoxic pond 3,3 hours, dischargeable capacity 249L 3 residence time of anoxic pond, oxygen pond 4 in a subtle way is entered in anoxic water outlet,
Micro- 3 hours 4 residence times of oxygen pond, 166 liters of dischargeable capacity, afterwards into Aerobic Pond 5,4 hours residence times in Aerobic Pond 5, have
332 liters of volume is imitated, 4 hours residence times in membrane cisterna 6,332 liters of dischargeable capacity.The water self priming pump of membrane cisterna 6 is from MBR membrane modules
Extract outer arrange at outlet pipe 9 above 19 out.
Anaerobic pond 2 is with also using Ball-type packing 7 in anoxic pond 3, without aeration, control dissolved oxygen is less than 0.5mg（Milligram）/
L（Rise）, with using MBBR fillers 8 in Aerobic Pond 5, it is necessary to be aerated, micro- dissolved oxygen of oxygen pond 4 is controlled in 1mg/L or so in micro- oxygen pond 4,
Under micro-oxygen conditions, aerobic bacteria and and while oxygen bacterium degradation of organic substances, by mineralized nitrogen into nitrite, remove ammonia nitrogen,
Aerobic Pond 5 controls dissolved oxygen to turn in 2mg/L or so, mainly further organics removal and by remaining ammonia nitrogen and nitrite
It is melted into nitrate；Without filler, it is necessary to enough aerations, ensure that sludge is in suspended state in membrane cisterna 6, while to MBR film groups
Part 19 is recoiled, and prevents from blocking, and every film of theoretical amount needs aeration quantity 12L（Rise）/Min（Minute）, and 2 t（）/d
（My god）The MBR membrane modules 19 for the treatment of capacity need 5 films, therefore the L of the aeration quantity of film about 60（Rise）/Min（Minute）.（Press herein
According to every 1 square of membrane filtration area, in the case where ensureing total filtration flux, different filtering surfaces also can be selected in practical application
Long-pending film, now the aeration quantity of film need to be from new accounting）.The nitrification liquid of Aerobic Pond 6 is back in anoxic pond 3, utilizes denitrifying bacterium
Denitrification is carried out to nitrate, discharges nitrogen, removes total nitrogen, the sludge reflux in membrane cisterna 6 to anaerobic pond 2, the side of sludge reflux one
Face supplements the sludge quantity of front end, on the other hand carries out the release of phosphorus using polyP bacteria under anaerobic, follow-up total so as to ensure
Effective removal of phosphorus.
Before processing and the effluent quality major pollutants index after processing are as shown in the table：
| COD | BOD5 | SS | NH3 | TN | TP | |
| Water inlet mg/L | 《350 | 《200 | 《150 | 《25 | 《35 | 《4 |
| Water outlet mg/L | 《50 | 《10 | 《10 | 《5 | 《15 | 《0.5 |
Embodiment two
The top filter of bacteria bed is apart from outlet pipe low side 98mm, and the bottom filter of bacteria bed is apart from bottom
385mm。
Remaining is same as above, and repeats no more.
Embodiment three
The top filter of bacteria bed is apart from outlet pipe low side 168mm, and the bottom filter of bacteria bed is apart from bottom
428mm。
Remaining is same as above, and repeats no more.
Claims (7)
1.A2O2+MBR processing unit, it is characterised in that：Described A2O2+MBR processing units include：Water inlet, anaerobic pond, lack
Oxygen pond, micro- oxygen pond, Aerobic Pond, membrane cisterna, Ball-type packing, MBR membrane modules, MBBR fillers, outlet pipe, aerator, sludge reflux
Pipe, nitrification liquid return duct, self priming pump；Aerator refers to aeration head, aeration branch pipe, aeration supervisor, gas control valve, aeration
Equipment；MBR membrane modules are installed in membrane cisterna；It is mounted at the top of anaerobic pond, anoxic pond, micro- oxygen pond, Aerobic Pond, membrane cisterna
Access hole, self priming pump is installed in outlet pipe；Nitrification liquid return duct is installed between Aerobic Pond and anoxic pond top；In micro- oxygen
Aerator is mounted in pond, Aerobic Pond, membrane cisterna；The annexation of described A202+MBR processing units is：In A202+
The left upper part of MBR processing units is provided with water inlet, and sewage enters anaerobic pond by water inlet；Anaerobic pond and anoxic pond top
Portion is connected, and water is handled in anaerobic pond and flows into anoxic pond from top；Anoxic pond is connected with the bottom in micro- oxygen pond, and water is handled in anoxic pond
Micro- oxygen pond is flowed into from bottom；Micro- oxygen pond handles water with being connected at the top of Aerobic Pond, in micro- oxygen pond and flows into Aerobic Pond from top；It is aerobic
Pond handles water with being connected at the top of membrane cisterna, in Aerobic Pond and flows into membrane cisterna from top；MBR membrane modules are installed in the middle part of membrane cisterna；
A202+MBR processing unit right-hand members top is provided with outlet pipe, and the processing water of membrane cisterna is filtered by MBR membrane modules, MBR membrane modules
Connected with outlet pipe, outlet pipe connects with self priming pump, and self priming pump extracts filtered water out.
2. A2O2+MBR processing units as claimed in claim 1, it is characterised in that：Installed in described anaerobic pond, anoxic pond
There is bacteria bed, be placed with Ball-type packing in bacteria bed, the Ball-type packing in bacteria bed is fixed.
3. A2O2+MBR processing units as claimed in claim 1, it is characterised in that：Installed in described micro- oxygen pond, Aerobic Pond
There is bacteria bed, MBBR fillers are placed with bacteria bed, MBBR fillers are moveable.
4. A2O2+MBR processing units as claimed in claim 1, it is characterised in that：Outside described A202+MBR processing units
Aeration supervisor and aerator are installed at the top of body, pacified between the centre of aeration branch pipe and aeration branch pipe and aeration supervisor
Equipped with gas control valve.
5. A2O2+MBR processing units as claimed in claim 1, it is characterised in that：In described micro- oxygen pond, Aerobic Pond, membrane cisterna
It is mounted on aeration head, aeration branch pipe, gas control valve.
6. A2O2+MBR processing units as claimed in claim 2, it is characterised in that：Described bacteria bed is grid box,
The top of casing is apart from outlet pipe low side 98-168mm, and the bottom of casing is apart from pond inner bottom part 385-428mm.
7. A2O2+MBR processing units as claimed in claim 6, it is characterised in that：Described grid box, the top of casing
120mm is preferably apart from outlet pipe low side, the bottom of casing is preferably 420mm apart from pond inner bottom part.
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| CN201720742726.1U CN206940545U (en) | 2017-06-25 | 2017-06-25 | A2O2+MBR processing units |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205957A (en) * | 2018-10-31 | 2019-01-15 | 深圳市水务规划设计院有限公司 | Sewage-treatment plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205957A (en) * | 2018-10-31 | 2019-01-15 | 深圳市水务规划设计院有限公司 | Sewage-treatment plant |
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