CN108217926A - Integrated film bio-reaction system - Google Patents
Integrated film bio-reaction system Download PDFInfo
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- CN108217926A CN108217926A CN201810148045.1A CN201810148045A CN108217926A CN 108217926 A CN108217926 A CN 108217926A CN 201810148045 A CN201810148045 A CN 201810148045A CN 108217926 A CN108217926 A CN 108217926A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 238000001914 filtration Methods 0.000 claims abstract description 66
- 239000012528 membrane Substances 0.000 claims abstract description 49
- 238000004140 cleaning Methods 0.000 claims abstract description 46
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 30
- 239000010935 stainless steel Substances 0.000 claims abstract description 28
- 239000011796 hollow space material Substances 0.000 claims abstract description 5
- 239000010802 sludge Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 9
- 238000005276 aerator Methods 0.000 claims description 7
- 238000000108 ultra-filtration Methods 0.000 claims description 6
- 238000001223 reverse osmosis Methods 0.000 claims description 4
- 238000001727 in vivo Methods 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 24
- 238000012423 maintenance Methods 0.000 abstract description 14
- 238000005842 biochemical reaction Methods 0.000 abstract description 5
- 238000004062 sedimentation Methods 0.000 abstract description 5
- 230000004907 flux Effects 0.000 description 15
- 238000010276 construction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005374 membrane filtration Methods 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000003796 beauty Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000012554 master batch record Methods 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 101100001673 Emericella variicolor andH gene Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000011968 cross flow microfiltration Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- -1 polyene Hydrocarbon Chemical class 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to sewage-treatment plant technical fields, more particularly to integrated film bio-reaction system (MBR), including shell, inner casing, filtration system and cleaning device, the inner casing is set to enclosure, the hollow space of the inner casing forms the first cavity, first cavity is membrane bio-reaction pond, and the second cavity is formed between the inner casing and shell, and the second cavity is clear water reserviors；The filtration system is set on inner casing, and the inner casing is connected with shell by filtration system；The filtration system is stainless steel filter screen；The cleaning device is set to the first inside cavity, and the cleaning device is used to clean filtration system.Present invention collection primary sedimentation tank, biochemical reaction tank and secondary settling tank simplify the flow of sewage disposal in one；The low equipment investment, reliable, maintenance is simple, operating cost is low, thoroughly solves the puzzlement that fouling membrane and small throughput are brought in conventional membrane bioreactor, broader prospect is brought to applications of the MBR in middle-size and small-size scale sewage disposal.
Description
Technical field
The invention belongs to sewage-treatment plant technical field more particularly to integrated film bio-reaction systems.
Background technology
Membrane bio-reaction system (Membrane Bioreactor, abbreviation MBR) water technology is a kind of efficient UF membrane
Novel water technology (T.Stephenson, S.Judd, the B.Jefferson and that technology is combined with activated sludge process
K.Brindle, Membrane Bioreactors for Wastewater Treatment, IWA Publishing：
London, 2000.).Due to the filtration of film, microorganism and sludge are trapped in bio-reaction system completely, are realized
Hydraulic detention time and sludge age are completely separated so that biological unit has very high sludge concentration, improves it to organic
The removal rate of object.
From the point of view of recent MBR research conditions both at home and abroad, the filter membrane of filtration system is mostly the microfiltration membranes or energy of smaller aperture due
Retain bigger molecule ultrafiltration membrane, pore diameter range for 0.01~0.4 μm (X.Huang, B.Cao, X.H.Wen andH.C.Wei,
State-of-the-art of membrane bioreactors research and application in China
[J]；Acta Scientiae Circumstantiae, 2008,28 (3), 416-432.).Material is mainly hydrophobic polyene
Hydrocarbon and hydrophilic polysulfones, cellulose etc., also (the M.H.Al-Malack and such as some inorganic ceramic membranes
G.K.Anderson, Use of crossflow microfiltration in wastewater treatment [J]；
Water Research, 1997,31 (12), 3064-3072.).Hydrophobic polyolefin generally makes hollow fiber form film group
Part, and hydrophilic polysulfones, cellulose membrane generally make plate type membrane assembly.It is closed since most of MBR is employed by macromolecule
The micro-filtration or ultrafiltration membrane made into object, fouling membrane are easy to occur, and bring membrane flux reduction, and maintenance cost increases, membrane lifetime
The problems such as reducing, investing with operation cost increase.
In order to reduce cost, non-woven fabrics is once used for separation of solid and liquid in MBR, and flux is in 20-40L/m2In the range of h
(G.T.Seo, B.H.Moon, T.S.Lee, T.J.Lim and I.S.Kim, Non-woven fabric separation
activated sludge reactor for domestic wastewater reclamation[J]；Water Science
And Technology, 2002,47 (1), 133-138.).
Other cheap materials, such as nylon, are also used in MBR, mainly realize filtering by dynamic biological film
[Y.Kiso, Y.-J.Jung, T.Ichinari, M.Park, T.Kitao, K.Nishimura and K.-S.Min,
Wastewater treatment performance of a filtration bio-reactor equipped with a
Mesh as a filter material [J], Water Research, 2000,34 (17), 4143-4150].Based on Dynamic Membrane
MBR at runtime, sludge blanket is formed on silk screen, so as to fulfill separation of solid and liquid.It is special but since this layer of sludge blanket is unstable
It is not before filtering initial stage, Dynamic Membrane maturation, the effluent quality after filtering cannot be guaranteed, limit this method in practical dirt
Large-scale application in water processing establishment.
The shortcomings that in order to overcome dynamic biological film effluent quality unstable, W.Fuchs have studied nylon net filter system and exist
Application in MBR, in 10 μm of grades (20-30 μm), flow also may be up to 150L/m in the aperture of nylon wire2H (W.Fuchs,
C.Resch, M.Kernstock, M.Mayer, P.Schoeberl and R.Braun, Influence of operational
Conditions on the performance of a mesh filter activated sludge process [J],
Water Research, 2005,39 (5), 803-810.).At present, longtime running effect of the nylon net filter system in biochemistry pool
Fruit is also under study for action.
At present, membrane bio-reaction system is different with the relative position of bioreactor according to membrane module, predominantly split type
MBR or submerged MBRs.Wherein, split type MBR is that membrane module is provided separately with bioreactor, is taken up a large area, Expenses Cost
It is high；For submerged MBRs typically directly by membrane module as in bioreactor, membrane cleaning process is inconvenient.
Invention content
In order to overcome membrane flux in traditional MBR low, seriously polluted, membrane lifetime is short, and cost of investment is high, and maintenance cost is high, fortune
The problems such as row high energy consumption and unstable dynamic biological film effluent quality, the present invention propose a kind of novel integrated film life
Object reaction system (MBR).
Integrated film bio-reaction system, which is characterized in that described including shell, inner casing, filtration system and cleaning device
Inner casing is set to enclosure, and the inner casing hollow space forms the first cavity, and the first cavity is membrane bio-reaction pond, described interior
The second cavity is formed between shell and shell, the second cavity is clear water reserviors；The filtration system is set on inner casing, the inner casing and
Shell is connected by filtration system；The cleaning device is set to the first inside cavity, and the cleaning device is used to clean
Filter system.
Specifically, first cavity i.e. constitute the required primary sedimentation tank of general activated sludge process sewage treatment facility,
Biochemical reaction tank and secondary settling tank make its three be integrated.
Further, the filtration system is stainless steel filter screen；The aperture of the stainless steel filter screen is less than 200 μm.
Preferably, the filtration system includes at least two layers of stainless steel filter screen, first close to inner casing inner wall side
Stainless steel filter screen aperture is less than the aperture of the second stainless steel filter screen close to shell side.Second stainless steel filter screen is main
It plays a supporting role.
Specifically, the cleaning device includes the motor and speed change system that are set to cover top portion, is set to the first cavity
Interior Clean Brush for cleaning, the Clean Brush for cleaning is with motor and speed change system by rotating axis connection；The position of the Clean Brush for cleaning is just
Corresponding to filtration system.
Further, water inlet, water outlet and sludge mouth are further included, the water inlet is connected with the first cavity bottom end, institute
State water inlet setting inlet valve；The water outlet is set on shell, and the water outlet is connected with the second cavity, the water outlet
Position less than setting liquid level；The sludge mouth is set to the first cavity bottom, and the sludge mouth sets sludge valve.
Preferably, the water inlet setting intake pump, the inlet valve are set between water inlet and intake pump.
Preferably, the water outlet setting flowmeter, the outlet valve are set between water outlet and water flow meter.
Preferably, setting liquid level gauge in first cavity, intake pump, water flow meter and liquid level gauge and PLC are controlled
Device connects.
Preferably, the first cavity bottom end connects air blower, air valve is set between the air blower and the first cavity,
Air flow meter is set between the air valve and the first cavity, and the air flow meter is connect with aerator, the aerator
It is set in the first cavity.
Preferably, air flow meter is connect with PLC controller.
Preferably, the water outlet setting ultrafiltration apparatus or reverse osmosis unit, further improve water quality.
Preferably, the stainless steel filter screen can by SS304, SS304L, SS316 or SS316L stainless steel wire weave and
Into, can weak acid resistant, alkaline-resisting, high temperature resistant, stretching resistance and wearability it is strong.
Further, the weaving manner of the stainless steel filter screen be plain weave, twill weave, Dutch weave it is (flat
Line) or Dutch weave (twill) etc..
Preferably, the diameter of stainless steel wire is less than 150 μm.
As another technical solution, filtration system can also be made by the filter screen of the materials such as nylon or non-woven fabrics.
Beneficial effects of the present invention are as follows：
1) integrated film bio-reaction system of the invention, filtration system is set on inner casing, filtration system and inner casing
Be integrally formed structure so that primary sedimentation tank, biochemical reaction tank and secondary settling tank three are integrated, simplify sewage disposal technique and
Operational process saves construction investment cost, reduces Engineering Construction Land-Occupation, shortens the engineering construction period, improves sewage
The degree of automation for the treatment of facility and reduce artificial requirement needed for operation.
2) integrated film bio-reaction system of the invention, using stainless steel filter screen as filtration system, filtration system
It can weak acid resistant, alkaline-resisting, high temperature resistant, stretching resistance and wear-resisting；It is easily worked；Long lifespan；Easy cleaning；Water flux is big, flux stabilized；Knot
Dirt is few, is not easy to plug；Cost of investment is low, and operating cost is low, and maintenance cost is low.
3) integrated film bio-reaction system of the invention, in setting cleaning device in the first cavity so that in operation,
It is gradually cleaned since the surface of filtration system is cleaned device, the dynamic biological sludge filtration layer in filtration system is also by gradually clear
Reason, avoids the problem of common dynamic membrane filtration system originates out water unstable.In practical applications, water outlet is substantially better than general
Dynamic film bio reaction system.The present invention is especially suitable for the Sewage Treatment Projects of middle-size and small-size scale, thoroughly solve conventional film
The puzzlement that fouling membrane and small throughput are brought in bioreactor (MBR) applies band to MBR in middle-size and small-size scale sewage disposal
Broader prospect is carried out.
4) integrated film bio-reaction system of the invention, using cleaning device, improves the effect and reliability of cleaning.
Without recoil, cleaned without medicament.In addition, without need to be membrane module from reaction system as traditional membrane bio-reaction system
It takes out, is cleaned, greatly reduce the maintenance intensity of membrane bio-reaction system.The maintenance work of sewage disposal is simplified, is dropped
Low energy consumption and operating cost.
5) integrated film bio-reaction system of the invention, the aperture of stainless steel filter screen, which is situated between, is less than 200 μm, the overwhelming majority
Solid can be trapped；The quality of water outlet can match in excellence or beauty with the water outlet of traditional husky filter；If MLSS in membrane bio-reaction pond in
It improves, the quality of water outlet also can further improve.
6) compared to the membrane filtration system in traditional MBR, self priming pump is needed just to can reach certain flux, present invention profit
With small hydraulic pressure, so that it may reach the effluent flux of needs.In order to obtain stable outlet effect, general filter pressure reaches
During 20-25kPa, water flow is up to 150L/m2·h；An order of magnitude is higher by than traditional membrane filtration system；In high throughput
Requirement under, the filter screen of larger aperture can also be used, the suspended matter in water outlet can't dramatically increase；Greatly reduce operation
Required energy consumption.
7) integrated film bio-reaction system of the invention, can also increase ultrafiltration apparatus or reverse osmosis unit so that go out
Water can on-demand reuse.Since the water outlet of the present invention has already passed through refined filtration, the insoluble object in water is removed by the overwhelming majority,
The operation and maintenance cost of ultrafiltration or reverse osmosis unit will substantially reduce.
8) integrated film bio-reaction system of the invention, especially suitable for the construction of middle-size and small-size sewage treatment facility, tool
There is the features such as with good investment, reliable, maintenance is simple, operating cost is low.
Description of the drawings
Fig. 1 is the integrated film bio-reaction system (aerobic) of embodiment 1；
Fig. 2 is the integrated film bio-reaction system (anaerobism) of embodiment 2.
Wherein, 1- shells；2- inner casings；3- filtration systems；4- cleaning devices；41- Clean Brush for cleaning；42- motors and speed change system
System；The first cavitys of 5-；The second cavitys of 6-；7- water inlets；71- inlet valves；72- intake pumps；8- water outlets；81- outlet valves；82-
Water flow meter；9- sludge mouths；91- sludge valves；10- liquid level gauges；11- air flow meters；12- air valves；13- air blowers；14-
Aerator.
Specific embodiment
In order to make technical scheme of the present invention of greater clarity, with reference to the accompanying drawings and embodiments to the present invention into traveling
One step is described in detail.
Embodiment 1
As shown in Figure 1, integrated film bio-reaction system (aerobic), which is characterized in that including shell 1, inner casing 2, filtering
System 3 and cleaning device 4, the inner casing 2 are set to inside shell 1, and 2 hollow space of inner casing forms the first cavity 5, described
The second cavity 6 is formed between inner casing 2 and shell 1；The filtration system 3 is set on inner casing 2, and the inner casing 2 and shell 1 pass through
Filtration system 3 is connected；The cleaning device 4 is set to inside the first cavity 5, and the cleaning device 4 is for cleaning filtering
System 3.First cavity 5 is membrane bio-reaction pond, and the second cavity 6 forms clear water reserviors.
Core content for the present invention above, filtration system 3 is set on inner casing 2 so that filtration system 3 and inner casing 2
Structure is integrally formed, primary sedimentation tank, biochemical reaction tank and secondary settling tank three are integrated, i.e. the first cavity 5, simplify sewage disposal
Technique and operational process, save construction investment cost, reduce Engineering Construction Land-Occupation, shorten the engineering construction period, carry
High the degree of automation of sewage treatment facility and reduce requirement artificial needed for operation.Using stainless steel filter screen conduct
Filtration system 3, filtration system 3 can weak acid resistant, alkaline-resisting, high temperature resistant, stretching resistances and wear-resisting；It is easily worked；Long lifespan；Easy cleaning；
Water flux is big, flux stabilized；Fouling is few, is not easy to plug；Cost of investment is low, and operating cost is low, and maintenance cost is low.By first
Setting cleaning device 4 in cavity 5 so that in operation, gradually clean, filter since the surface of filtration system 3 is cleaned device 4
Dynamic biological sludge filtration layer in system 3 is also gradually cleared up, and it is unstable to avoid the starting water outlet of common dynamic membrane filtration system
The problem of determining.In practical applications, water outlet is substantially better than common dynamic membrane bio-reaction system.By cleaning device 4, improve
The effect and reliability of cleaning.Without recoil, cleaned without medicament.The maintenance work of sewage disposal is simplified, reduces energy consumption
And operating cost.In addition, membrane module need to need not be taken out from reaction system as traditional membrane bio-reaction system, carry out clear
It washes, greatly reduces the maintenance intensity of membrane bio-reaction system.It is dirty thoroughly to solve film in traditional membrane bio-reaction system (MBR)
The puzzlement that dye and low membrane flux are brought.
Further, the filtration system 3 is stainless steel filter screen；The aperture of the stainless steel filter screen is less than 200 μm；
According to water flux size, the filter screen of different pore size may be selected in the uniform pore diameter of stainless steel filter screen, and range of choice is big；It is big absolutely
Partial solid can be trapped；The quality of water outlet can match in excellence or beauty with the water outlet of traditional husky filter；If the MLSS in membrane bio-reaction pond
It obtains in raising, the quality of water outlet also can further improve.
In this implementation, filtration system 3 is one layer of stainless steel filter screen.As deformation, the filtration system can also be set
Two layers or more than two layers stainless steel filter screen are less than close to the first stainless steel filter screen aperture of inner casing inner wall side close to shell
The aperture of second stainless steel filter screen of side, the second stainless steel filter screen primarily serve supporting role.
Specifically, the cleaning device 4 includes the motor and speed change system 42 that are set to 1 top of shell, is set to first
Clean Brush for cleaning 41 in cavity 5, the Clean Brush for cleaning 41 is with motor and speed change system 42 by rotating axis connection；The free wool
The position of brush 41 just corresponds to filtration system 3.
Further, water inlet 7, water outlet 8 and sludge mouth 9 are further included, the water inlet 7 connects with the first cavity bottom end 5
Logical, the water inlet 7 sets inlet valve 71；The water outlet 8 is set on shell 1, and the water outlet 8 connects with the second cavity 6
Logical, the position of the water outlet 8 is less than the liquid level set；The sludge mouth 9 is set to 5 bottom of the first cavity, the sludge mouth 9
Sludge valve 91 is set.The device of the present embodiment may only utilize small hydraulic pressure, so that it may reach the effluent flux of needs.In order to take
Stable outlet effect is obtained, when general filter pressure reaches 20-25kPa, water flow is up to 150L/m2·h；Than traditional film
Filtration system will be higher by an order of magnitude；Under high-throughput requirement, the filter screen of larger aperture can also be used, it is outstanding in water outlet
Float can't dramatically increase；Greatly reduce the energy consumption needed for operation.
Preferably, the water inlet 7 sets intake pump 72, the inlet valve 71 is set to water inlet 7 and intake pump 72
Between.
Preferably, water ga(u)ge 82 and outlet valve 81 is provided in the water outlet 8, the outlet valve 81 is set to water outlet
Between mouth 8 and water flow 82 are counted.
Preferably, setting liquid level gauge 10 in first cavity 5.
Preferably, 5 bottom end of the first cavity connects air blower 13, set between 13 and first cavity 5 of air blower
Air valve 12 sets air flow meter 11 between 12 and first cavity 5 of air valve, the air flow meter 11 and aeration
Device 14 connects, and the aerator 14 is set in the first cavity 5, and the integrated film bio-reaction system of the present embodiment can be used for
The aerobic biochemical process of sewage disposal.Air flow meter 11, intake pump 72, water flow meter 82 and liquid level gauge 10 are controlled with PLC
Device connects.
The sewage precipitated by coarse filtration and first portion is pumped in reaction system, and the liquid level of sewage is monitored by liquid level gauge 10, and
Signal is passed into PLC controller, controls the opening and closing of intake pump 72.By wind turbine 13, air valve 12, air flow meter 11 and aerator
14 aerating systems formed, the flow of air are adjusted by PLC control air valves 12.Water flow meter 82 passes the signal along to
PLC controller.
After filtering, sludge is trapped in reaction system.Sludge valve 91 is opened, by excess sludge from reaction system
Discharge.
After the system response of the present embodiment, the effluent quality of biochemical sewage is higher than the water quality of common secondary clarifier effluent,
The water quality that water is filtered out with sand is suitable (COD ＜ 50ppm, SS ＜ 10ppm).
Embodiment 2
Integrated film bio-reaction system (anaerobism) shown in Fig. 2, which is characterized in that including shell 1, inner casing 2, filtering system
System 3 and cleaning device 4, the inner casing 2 are set to inside shell 1, and 2 hollow space of inner casing forms the first cavity 5, described interior
The second cavity 6 is formed between shell 2 and shell 1；The filtration system 3 is set on inner casing 2, and the inner casing 2 and shell 1 passed through
Filter system 3 is connected；The cleaning device 4 is set to inside the first cavity 5, and the cleaning device 4 is used to clean filtration system
3.First cavity 5 is membrane bio-reaction pond, and the second cavity 6 forms clear water reserviors.
Core content for the present invention above, filtration system 3 is set on inner casing 2 so that filtration system 3 and inner casing 2
Structure is integrally formed, just heavy, biochemical reaction and sedimentation three are integrated, is i.e. the first cavity 5 simplifies the work of sewage disposal
Skill and operational process save construction investment cost, reduce Engineering Construction Land-Occupation, shorten the engineering construction period, improve
The degree of automation of sewage treatment facility and reduce artificial requirement needed for operation.Using stainless steel filter screen as filtering
System 3, filtration system 3 can weak acid resistant, alkaline-resisting, high temperature resistant, stretching resistances and wear-resisting；It is easily worked；Long lifespan；Easy cleaning；Water leads to
Amount is big, flux stabilized；Fouling is few, is not easy to plug；Cost of investment is low, and operating cost is low, and maintenance cost is low etc..By in the first chamber
Setting cleaning device 4 in body 5 so that in operation, gradually cleaned since the surface of filtration system 3 is cleaned device 4, filtering system
Dynamic biological sludge filtration layer on system 3 is also gradually cleared up, and is avoided common dynamic membrane filtration system and is originated out water unstable
The problem of.In practical applications, water outlet is substantially better than common dynamic membrane bio-reaction system.By cleaning device 4, improve clear
The effect and reliability washed.Without recoil, cleaned without medicament.Simplify the maintenance work of sewage disposal, reduce energy consumption and
Operating cost.In addition, membrane module need to need not be taken out from reaction system as traditional membrane bio-reaction system, carry out clear
It washes, greatly reduces the maintenance intensity of membrane bio-reaction system.It is dirty thoroughly to solve film in traditional membrane bio-reaction system (MBR)
The puzzlement that dye and low membrane flux are brought.
Further, the filtration system 3 is stainless steel filter screen；The aperture of the stainless steel filter screen is less than 200 μm,
Uniform pore diameter；The solid of the overwhelming majority can be trapped；The quality of water outlet can match in excellence or beauty with the water outlet of traditional husky filter；If film is biochemical anti-
The MLSS of Ying Chizhong is obtained in raising, and the quality of water outlet also can further improve.
Specifically, the cleaning device 4 includes the motor and speed change system 42 that are set to 1 top of shell, is set to first
Clean Brush for cleaning 41 in cavity 5, the Clean Brush for cleaning 41 is with motor and speed change system 42 by rotating axis connection；The free wool
The position of brush 41 just corresponds to filtration system 3.
Further, water inlet 7, water outlet 8 and sludge mouth 9 are further included, the water inlet 7 connects with the first cavity bottom end 5
Logical, the water inlet 7 sets inlet valve 71；The water outlet 8 is set on shell 1, and the water outlet 8 connects with the second cavity 6
Logical, the position of the water outlet 8 is less than the liquid level set；The sludge mouth 9 is set to 5 bottom of the first cavity, the sludge mouth 9
Sludge valve 91 is set.The device of the present embodiment only utilizes small hydraulic pressure, so that it may reach the effluent flux of needs.It is steady in order to obtain
Fixed outlet effect, when general filter pressure reaches 20-25kPa, water flow is up to 150L/m2·h；Than traditional membrane filtration
System will be higher by an order of magnitude；Under high-throughput requirement, the filter screen of larger aperture can also be used, the suspended matter in water outlet
It can't dramatically increase, greatly reduce the energy consumption needed for operation.
Preferably, the water inlet 7 sets intake pump 72, the inlet valve 71 is set to water inlet 7 and intake pump 72
Between.
Preferably, water ga(u)ge 82 and outlet valve 81 is provided in the water outlet 8, the outlet valve 81 is set to water outlet
Between mouth 8 and water flow 82 are counted.
Preferably, setting liquid level gauge 10 in first cavity 5.Intake pump 72, water flow meter 82 and liquid level gauge 10
It is connect with PLC controller.
After coarse filtration and first portion precipitation, sewage is pumped in reaction system.The liquid level of sewage is monitored by liquid level gauge 10, and
Signal is passed into PLC controller, controls the opening and closing of intake pump 72.Filtration system 3 connects outlet system.The outlet system is by being discharged
Valve 8 and water flow meter 82 form.Water flow meter 82 passes the signal along to PLC controller.
The integrated film bio-reaction system of the present embodiment is suitable for the anaerobic biological process of sewage disposal, by filtering
Afterwards, sludge is trapped in reaction system.The agitation of cleaning system is conducive to the mixing of muddy water, plays better reaction effect.
Sludge valve 9 is opened, excess sludge can be discharged from reaction system.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. integrated film bio-reaction system, which is characterized in that described interior including shell, inner casing, filtration system and cleaning device
Shell is set to enclosure, and the hollow space of the inner casing forms the first cavity, and first cavity is membrane bio-reaction pond, institute
It states and the second cavity is formed between inner casing and shell, second cavity is clear water reserviors；The filtration system is set on inner casing, institute
Inner casing is stated with shell by filtration system to be connected；The cleaning device is set to the first inside cavity, and the cleaning device is used
In cleaning filtration system.
2. integrated film bio-reaction system according to claim 1, which is characterized in that the filtration system is stainless steel
Filter screen, the aperture of the stainless steel filter screen is less than 200 μm.
3. integrated film bio-reaction system according to claim 2, which is characterized in that the filtration system is included at least
Two layers of stainless steel filter screen is less than second close to shell side close to the first stainless steel filter screen aperture of inner casing inner wall side
The aperture of stainless steel filter screen.
4. integrated film bio-reaction system according to claim 1 or 2, which is characterized in that the cleaning device includes
It is set to the motor and speed change system of cover top portion, the Clean Brush for cleaning being set in the first cavity, the Clean Brush for cleaning and motor
And speed change system is by rotating axis connection；The position of the Clean Brush for cleaning just corresponds to filtration system.
5. integrated film bio-reaction system according to claim 1, which is characterized in that further include water inlet, water outlet
And sludge mouth, the water inlet are connected with the first cavity bottom end, the water inlet sets inlet valve；The water outlet is set to outer
On shell, the water outlet is connected with the second cavity, and the position of the water outlet is less than the liquid level set；The sludge mouth is set to
First cavity bottom, the sludge mouth set sludge valve.
6. integrated film bio-reaction system according to claim 5, which is characterized in that the water inlet setting water inlet
Pump, the inlet valve are set between water inlet and intake pump.
7. integrated film bio-reaction system according to claim 5, which is characterized in that flow is provided in the water outlet
Gauge and outlet valve, the outlet valve are set between water outlet and water flow meter.
8. according to the integrated film bio-reaction system described in claim 1 or 5 or 6 or 7, which is characterized in that first chamber
Setting liquid level gauge in vivo, intake pump, water flow meter and liquid level gauge are connect with PLC controller.
9. integrated film bio-reaction system according to claim 8, which is characterized in that even rouse the first cavity bottom end
Wind turbine sets air valve, air mass flow is set between the air valve and the first cavity between the air blower and the first cavity
Meter, the air flow meter are connect with aerator, and the aerator is set in the first cavity；Air flow meter is controlled with PLC
Device connects.
10. the integrated film bio-reaction system according to claims 1 or 2 or 5 or 6, which is characterized in that the water outlet
Ultrafiltration apparatus or reverse osmosis unit are set.
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| CN201810148045.1A CN108217926A (en) | 2018-02-12 | 2018-02-12 | Integrated film bio-reaction system |
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