CN105481185B - The system and method for outer separation full embrane method processing environmental sanitation station filter liquor - Google Patents
The system and method for outer separation full embrane method processing environmental sanitation station filter liquor Download PDFInfo
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- CN105481185B CN105481185B CN201610010422.6A CN201610010422A CN105481185B CN 105481185 B CN105481185 B CN 105481185B CN 201610010422 A CN201610010422 A CN 201610010422A CN 105481185 B CN105481185 B CN 105481185B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention discloses a kind of systems of outer separation full embrane method processing environmental sanitation station filter liquor, including sequentially connected gravity oil removal unit, ion flotation unit, anaerobic unit, aerobic unit and deep purifying unit, the anaerobic unit includes anaerobic expanded granular sludge bed and anaerobism membrane separation device, and mixed-liquor return pipe is equipped between anaerobism membrane separation device and anaerobic expanded granular sludge bed；The aerobic unit includes aerobic activated sludge reactor and aerobic membrane separation device, and mud return line is equipped between aerobic membrane separation device becomes reconciled oxygen activity sewage sludge reactor.It utilizes two step oil removings, on the basis of solving the oil slick and oil emulsion in filter liquor, using the whole process microbial degradation combination UF membrane circulatory system, it is mutually relatively independent in the method for operation to realize microbial, production water phase and biogas, under the high biosolids concentration of holding, high circulation stirring intensity and high solid-liquid separation efficiency, organic matter larger molecular organics especially difficult to degrade is enable to degrade.
Description
Technical field
The present invention relates to a kind of sewage disposals, the system of especially outer separation full embrane method processing environmental sanitation station filter liquor and side
Method.
Background technology
The collection and processing, disposition of domestic waste gradually tend to standardize at present, and many big cities all have been established
Garbage transfer station zonal, with considerable scale, i.e. environmental sanitation station.The rubbish collection of each residential area, garbage collection points
Trolley is transported in environmental sanitation station and is poured into and is placed in the dustbin of melt pit, is transported outward after compression.It is a large amount of due to containing in rubbish
Biodegradable organic waste, and be the higher substance of water content（General water content 40-80%）, easily generate rubbish waste liquid, simultaneously meeting
There are refuse container and the flushing waste water on ground to generate.Due to containing kitchen garbage in rubbish, such waste water is in muddy emulsion form, is contained
There are a large amount of oil emulsion and macromolecule hardly degraded organic substance, if dealing with or penetrating into surrounding ground improperly, it will cause serious
Environmental pollution.
Since rubbish is squeezed from generating environmental sanitation station, time interval is usually no more than 1-2d, therefore its wastewater property and rubbish
The percolate of rubbish landfill yard makes a big difference：Firstly, for certain area coverage, the environmental sanitation station of certain collection mode, water
Matter feature is relatively stablized, and is had when being not in the fluctuation of " young-middle age-is old " landfill percolate, but classifying incomplete
The pollutant toxic to biochemical treatment；Secondly as the period of storage of rubbish before the compression is short, most of organic wastes do not have
Have and start to degrade, the organic nitrogen and ammonia-nitrogen content in waste water are all relatively low；Soluble solid, salt content are higher, when there is industrial rubbish
When rubbish is mixed into, heavy metal ion content is higher；Macromolecular organic pollution concentration is high, and biological drop is difficult to by common biochemistry
Solution.
It is detected according to the water quality to several environmental sanitation stations filter liquor as a result, such waste water COD about 6000-20000mg/L,
BOD about 3000-10000mg/L, TN about 100-200mg/L, NH3- N about 50-100mg/L, TP about 10-20mg/L, individual waste water
Oil content reach 1000mg/L or more, wherein predominantly oil emulsion.
Currently, the research about such waste water is less, engineer application is also at the initial trial stage, big multipair water quality situation
Understand not enough, technological design is also not mature enough.It must be investigated from source when such waste water designs, fully understand environmental sanitation station
The type and proportion of rubbish, the influence to its caused filter liquor waste water quality should give sufficient estimation.Such as《Chinese state
Family's Hazardous Waste List》Middle regulation：The useless drug and its packing material that are generated in family daily life, useless insecticide and disinfectant and
Its packing material, waste oil paint and hold agent and its packing material, waste mineral oil and its packing material, waste films and useless printing paper, waste fluorescent light tube,
Useless thermometer, useless sphygmomanometer, waste Ni-Cd battery and mercuric oxide cell and electrical type hazardous waste etc., can not be useless according to danger
Object is managed.《Oily waste water treatment engineering legislation》Regulation：The disposition of oily sludge should meet the related of hazardous waste
Regulation.These wastes are once mixed into house refuse, can dissolve in filter liquor in rubbish expressing process and influence subsequent processed
Journey.If not taking effective pretreatment measure to these pollutants, the failure of anaerobism or aerobic treatment unit will be caused.
The built environmental sanitation station waste water disposal facility in part at present, mostly uses greatly traditional anaerobism and adds aerobic technique, do not set
Pretreatment unit is set, in the case where anaerobic unit anti impulsion load ability is weaker, Anaerobic Treatment load is low, removal rate is low, goes out
The still COD containing higher concentration in water.Aeration quantity is big after waste water enters aerobic unit, and the residence time is long, and final residual is in waste water
In ectoenzyme, humic acids not biodegradable organic, water outlet is only capable of reaching《Comprehensive discharge standard》Grade III Standard is wanted
Ask, and take up a large area, effluent quality it is unstable, cause load impact or peace caused to surrounding enviroment for end sewage plant
Full hidden danger.
Invention content
A kind of efficient outer full embrane method of separation is provided the purpose of the present invention is to solve above-mentioned the deficiencies in the prior art
The system and method for handling environmental sanitation station filter liquor, enable organic matter therein larger molecular organics especially difficult to degrade effectively to drop
Solution, improves the treatment effect and effluent quality of each unit, makes water outlet after deep purifying, and production water indices can reach《It is raw
Sanitary standard for drinking water living》Requirement.
To achieve the goals above, the system of the outer separation full embrane method processing environmental sanitation station filter liquor designed by the present invention, packet
Sequentially connected gravity oil removal unit, ion flotation unit, anaerobic unit, aerobic unit and deep purifying unit are included, it is described heavy
It is equipped with oil partition tank in power oil removal unit, ion flotation machine is equipped in the ion flotation unit；The anaerobic unit includes anaerobism
Sludge bulking bed and anaerobism membrane separation device are equipped with mixed-liquor return between anaerobism membrane separation device and anaerobic expanded granular sludge bed
Pipe；The aerobic unit includes aerobic activated sludge reactor and aerobic membrane separation device, in aerobic membrane separation device and aerobic
Mud return line is equipped between activated sludge reactor；The deep purifying unit includes ozone catalytic device, activated carbon adsorption
Device and reverse osmosis membrane separation device.
The form of the oil partition tank is flat flow, parallel plate type or inclined plate type.
The anaerobism membrane separation device, which is become reconciled, is equipped with external tubular membrane component on oxygen membrane separation device, according to water inlet
The height of COD and the size of water, can be used pump water lift flat or air lift is rectilinear.
A kind of method of outer separation full embrane method processing environmental sanitation station filter liquor includes using the above-mentioned full embrane method processing of outer separation
The system of environmental sanitation station filter liquor, wherein filter liquor enter former pond through collecting, and being lifted into oil partition tank through pump carries out gravity except floating
After oil, oil emulsion is further removed in ion flotation machine and is partly dissolved oil；Waste water after oil removing enters anaerobic sludge expansion
Bed, carry out herein the formation of granule sludge, expansion, with being sufficiently mixed of intaking and the absorption of organic matter, mass transfer and degradation, in order to
Improve anaerobic expanded granular sludge bed in sludge concentration, promote granule sludge formation, reinforce stirring intensity, improve reaction rate and
The removal rate of larger molecular organics difficult to degrade, by the muddy water mixed solution containing sludge flco in the middle and upper part of anaerobic expanded granular sludge bed
It flows into anaerobism membrane separation device, and to the particle mixed liquor of the solid containing anaerobe under the hydraulic shear of appropriate flow velocity
It is detached, wherein isolated mixed liquor is recycled to anaerobic expanded granular sludge bed by solid-liquid mixed-liquor return pipe, separation
Water outlet enters the aerobic decomposition that aerobic activated sludge reactor carries out the organic matters such as small molecule, while utilizing aerobic membrane separation device
Aerobic sludge is detached, wherein isolated sludge is recycled to aerobic activated sludge reactor by mud return line,
Isolated water outlet enters deep purifying unit, by ozone catalytic device, activated carbon adsorption device and reverse osmosis membrane separation
After the processing of device, reuse can be carried out.
In order to improve the stirring extent in anaerobic expanded granular sludge bed, reduce the crossflow velocity of anaerobism membrane separation device to prolong
Slow fouling membrane reduces hydraulic shear effect of the flow velocity to microbe granular, and natural pond is also associated at the top of the anaerobic expanded granular sludge bed
Gas collector unit, the cycle to carry out biogas stir..
The biogas that the anaerobic expanded granular sludge bed generates is discharged into collecting methane unit from top, then utilizes compressor by portion
The entrance for dividing biogas to be sent into anaerobism membrane separation device, and filter membrane is flowed through together with mixed liquor, then through mixed-liquor return Guan Xun
Ring extremely enters anaerobic expanded granular sludge bed bottom and stirs sludge.It can be utilized when biogas output is big, amount hour can set
Flare combustion apparatus is set by its thorough combustion decomposition.
Two-stage substep oil removing is carried out first against filter liquor waste water, oil partition tank removes the oil that grain size is more than or equal to 60-100 μm
Drop, to the removal rate of oil slick up to 70% or more, form can be thrown according to the actual conditions, the floor space of requirement, capital construction of water
Money, repair degree of cleaning etc. are selected, and have flat flow, parallel plate type or inclined plate type, also can be by adding acid for adjusting pH value to carry
The removal effect of high oil slick and dispersed oil；Ion flotation machine can remove the oil droplet less than 5-10 μm, and Inorganic floatation agent is using inorganic
Aluminium salt or ferrous salt, organic flotation agent is good using demulsification stablizing effect, residue is low, it is organic high in the cation of emulsus to be mixed with water
Oil content can be reduced to 10mg/L hereinafter, the removal rate to oil emulsion is more than 80% by molecule flotation agent.Due to the oily meeting in water
It is adhered to the outer surface of microorganism, its breathing and metabolic function is inhibited therefore to usually require that containing into biological treatment structures
The oil content of oily water must not exceed 30mg/L.And pass through the first order oil removing of the present invention, oil slick and dispersed oil are removed,
But oil emulsion need to be removed by the second level, that is, ion flotation machine, can ensure the stable operation of subsequent biochemical system；Simultaneously
A certain amount of heavy metal ion is also can remove in ion flotation process.
Secondly in anaerobic unit, waste water enters from the bottom of anaerobic expanded granular sludge bed, by anaerobic granular sludge bed, simultaneously
It is mixed with the solid-liquid mixed liquor come from the reflux of anaerobism membrane separation device through mixed-liquor return pipe, in the up-flow speed of 10-15m/h
It is raised to the effluent recycling area of middle and upper part.In the process, larger molecular organics are degraded and are converted into CO2And CH4, on them
Be raised at the top of anaerobic expanded granular sludge bed and be expelled to collecting methane unit, in uphill process simultaneously to Sludge Bed generate stirring and
Gas stripping, the equivalent upflow velocity which generates is about 6-8m/h.And the standing sedimentation for the granule sludge that this system generates
Rate is about 60-80m/h, therefore in the case where intensity is mixed in high flow and air-flow, most of granule sludges remain to concentrate on
In the Sludge Bed of middle and lower part, without being flowed out with water outlet, goes out stream part with water and detached by external anaerobism membrane separation device
Cycle.
The organic matter fermentation that anaerobic expanded granular sludge bed and anaerobism membrane separation device are formed in the anaerobic unit degrades, is outer
It sets film separation of solid and liquid, microbial solid cycle, biogas to detach and be integral, but the system that the method for operation is relatively independent, in HRT
（Hydraulic detention time）When only 1-2d, SRT（Sludge retention time）Up to 30-50d or more.High biosolids concentration,
High circulation stirring intensity, high upflow velocity, that is, Sludge Bed make organic matter macromolecular especially difficult to degrade under swelling state
Organic matter is effectively degraded, and the effluent quality become reconciled with high solid-liquid separation efficiency.
The anaerobic expanded granular sludge bed is the variant of common anaerobic expanded granular sludge bed, eliminates common EGSB to dividing
Extremely stringent three phase separator is required from condition, is separated by solid-liquid separation and is realized by external anaerobism membrane separation device, circulating reflux
It measures and the crossflow velocity of the size Main Basiss anaerobic membrane separating circulating device of up-flow speed, hydraulic shear is to Granular sludge formation
Influence, microorganism and entering organic matter of water be mixed depending on condition, solve high up-flow speed or mixing intensity with it is solid
Contradiction between sludge loss caused by liquid separation is difficult；In addition anaerobic expanded granular sludge bed does not set discharge outlet, middle and upper part mixed liquor
Into anaerobism membrane separation device, the microbial solid of retention carries out reflux cycle, and the production water of film is the water outlet of anaerobic unit.Its
Middle crossflow velocity 1-2m/s, mean sludge concentration maintain 20-40g/L, the removal rate 85% of dope reflux ratio 85%-90%, COD
More than, 0.1-0.2 μm of membrane module filtering accuracy.
In addition in filter liquor after the processing of anaerobic unit, macromolecular substances are divided in hydrolysis acidification stage part
Solution, the COD of small molecule state is most of to be converted by anaerobic bacteria utilization for CH4And CO2It is removed from system, suspended state
Pollutant has also been retained by external anaerobic membrane.In addition, the anaerobism membrane separation device of external in this system
Filtering accuracy is controlled at 0.1-0.2 μm, and bacterium, fractionated viral and large scale glue are had also been removed while retaining suspended solid
Body, although the water outlet of anaerobism is very limpid at this time, the pollutant remained in waste water also has deliquescent small molecule organic
Object（Molecular weight is less than 1000, such as sugar, free acid, vitamin）, salinity, ammonia nitrogen etc., while COD contents are also relatively high.Therefore
It still needs to be further processed, therefore this system carries out aerobic point in conjunction with aerobic membrane separation device using aerobic activated sludge reactor to it
Solution.Since although ammonia-nitrogen content is very low in the filter liquor of environmental sanitation station, organic nitrogen accounts for large percentage, this part organic nitrogen is by front end
Anaerobic processes after, being decomposed can cause ammonia-nitrogen content in water significantly larger than to intake.Therefore synthesis is needed to examine in aerobic stage
Consider BOD5Removal and NH3The removal of-N, while the ratio shared by nitrifier is improved as far as possible.In order to reach such a purpose,
The present invention uses the technique that activated sludge is combined with external UF membrane, retains nitrifier and heterotroph, improves sludge concentration, drop
Low sludge loading improves effluent quality.Aerobic to be divided into two benches, previous stage operates in deceleration proliferation period, the latter half operation
In endogenous respiratory period.The advantages of this way is：The volume for reducing aerobic tank, the organic concentration being lowered into membrane tube carry in turn
High membrane flux, lessening membrane fouling, the ratio for improving nitrifier in second stage aeration tank.
Aerobic membrane separation device still uses external tubular membrane, and can remove colloid, protein, microorganism and macromolecular has
Machine object.By retaining and improving the ratio of the microorganism concn in reactor, nitrifier, essence is small dischargeable capacity, high dirt
The operation process of mud concentration, low sludge loading has important guarantee meaning to the waste water containing high kjeldahl nitrogen.
Finally in order to reach the standard of recycle-water, deep purifying unit is set at the end of system.Since leading portion production water is
The water outlet of UF films, therefore be not required to set mechanical filter unit again in this stage, ozone catalytic device, activated carbon adsorption device can be used
With the combination of reverse osmosis membrane separation device.
The system for the outer separation full embrane method processing environmental sanitation station filter liquor that the present invention obtains utilizes two step oil removings, solves and filters out
On the basis of oil slick and oil emulsion in liquid, using the whole process microbial degradation combination UF membrane circulatory system, micro- life is realized
Object phase, production water phase and biogas are mutually relatively independent in the method for operation, are keeping high biosolids concentration, high circulation stirring
Under intensity and high solid-liquid separation efficiency, organic matter larger molecular organics especially difficult to degrade is enable effectively to degrade.
The method for the outer separation full embrane method processing environmental sanitation station filter liquor that the present invention obtains, each unit step are combined closely, energy
Be effectively removed the pollution factors such as COD, nitrogen and the phosphorus in the filter liquor of environmental sanitation station, process equipment can workshop be processed into one
Body equipment, convenient transportation, duration compared with short, floor space is small, processing effluent quality is good, can reach《Urban sewage reutilization
Urban reclaimed water water quality》Requirement.
Description of the drawings
Fig. 1 is the flow chart of the system of the outer separation full embrane method processing environmental sanitation station filter liquor of embodiment 1；
Fig. 2 is the flow chart of the system of the outer separation full embrane method processing environmental sanitation station filter liquor of embodiment 2.
In figure：It is former pond 1, oil partition tank 2, ion flotation machine 3, anaerobic expanded granular sludge bed 4, anaerobism membrane separation device 5, aerobic
Activated sludge reactor 6, aerobic membrane separation device 7, ozone catalytic device 8, activated carbon adsorption device 9, reverse osmosis membrane separation dress
Set 10, mixed-liquor return pipe 12, mud return line 13, collecting methane unit 14.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1：
As shown in Figure 1, a kind of system of outer separation full embrane method processing environmental sanitation station filter liquor provided in this embodiment, including according to
Gravity oil removal unit, ion flotation unit, anaerobic unit, aerobic unit and the deep purifying unit of secondary connection, the gravity every
It is equipped with oil partition tank 2 in oily unit, ion flotation machine 3 is equipped in the ion flotation unit；The anaerobic unit includes anaerobism dirt
Mud expanded bed 4 and anaerobism membrane separation device 5 return between anaerobism membrane separation device 5 and anaerobic expanded granular sludge bed 4 equipped with mixed liquor
Flow tube 12；The aerobic unit includes aerobic activated sludge reactor 6 and aerobic membrane separation device 7, in aerobic membrane separation device 7
It becomes reconciled and is equipped with mud return line 13 between oxygen activity sewage sludge reactor 6；The deep purifying unit include ozone catalytic device 8,
Activated carbon adsorption device 9 and reverse osmosis membrane separation device 10.
The form of the oil partition tank 2 is flat flow, parallel plate type or inclined plate type.
It is equipped with external tubular membrane component on the anaerobism membrane separation device 5 and aerobic membrane separation device 7.
A kind of method of outer separation full embrane method processing environmental sanitation station filter liquor includes using the above-mentioned full embrane method processing of outer separation
The system of environmental sanitation station filter liquor, filter liquor enter former pond 1 through collecting, and being lifted into oil partition tank 2 through pump carries out gravity except oil slick
Afterwards, oil emulsion is further removed in ion flotation machine 3 and is partly dissolved oil；Waste water after oil removing enters anaerobic expanded granular sludge bed
4, carry out herein the formation of granule sludge, expansion, with being sufficiently mixed of intaking and the absorption of organic matter, mass transfer and degradation；In order to
It improves the sludge concentration in anaerobic expanded granular sludge bed 4, the formation of promotion granule sludge, reinforcement stirring intensity, improve reaction rate
With the removal rate of larger molecular organics difficult to degrade, the muddy water containing sludge flco in the middle and upper part of anaerobic expanded granular sludge bed 4 is mixed
It closes liquid stream to enter in anaerobism membrane separation device 5, and to the particle of the solid containing anaerobe under the hydraulic shear of appropriate flow velocity
Mixed liquor is detached, wherein isolated mixed liquor is recycled to anaerobic expanded granular sludge bed by solid-liquid mixed-liquor return pipe 12
4, the water outlet of separation enters the aerobic decomposition that aerobic activated sludge reactor 6 carries out the organic matters such as small molecule, while utilizing aerobic
Membrane separation device 7 detaches aerobic sludge, wherein isolated sludge is recycled to aerobic work by mud return line 13
Property sewage sludge reactor 6, isolated water outlet enters deep purifying unit, by ozone catalytic device 8, activated carbon adsorption device
9 and reverse osmosis membrane separation device 10 processing after, reuse can be carried out.
After deep purifying unit, the production water of reverse osmosis membrane separation device 10 can stably reach flow《Municipal sewage is again
It makes profits and uses urban reclaimed water water quality》Requirement.
Embodiment 2：
As shown in Fig. 2, a kind of system of outer separation full embrane method processing environmental sanitation station filter liquor provided in this embodiment, substantially
Flow is same as Example 1, but in the specific use process, in order to improve the stirring extent in anaerobic expanded granular sludge bed 4, reduce
The crossflow velocity of anaerobism membrane separation device 5 acts on the hydraulic shear of microbe granular to lessening membrane fouling, reduction flow velocity, institute
It states 4 top of anaerobic expanded granular sludge bed and is also associated with collecting methane unit 14.The biogas that the anaerobic expanded granular sludge bed 4 generates is from top
Portion is discharged into collecting methane unit 14, then utilizes compressor that part biogas is sent into the entrance of anaerobism membrane separation device 5, and with mixed
It closes liquid and flows through filter membrane together, be then recycled into 4 bottom of anaerobic expanded granular sludge bed through mixed-liquor return pipe 12 and stir dirt
Mud.It can be utilized when biogas output is big, flare combustion apparatus can be arranged by its thorough combustion decomposition in amount hour.
Claims (5)
1. a kind of system of outer separation full embrane method processing environmental sanitation station filter liquor, it include sequentially connected gravity oil removal unit, from
Sub- flotation cells, anaerobic unit, aerobic unit and deep purifying unit, it is characterised in that：It is equipped in the gravity oil removal unit
Oil partition tank（2）, the ion flotation unit is interior to be equipped with ion flotation machine（3）；The anaerobic unit includes anaerobic expanded granular sludge bed
（4）With anaerobism membrane separation device（5）, in anaerobism membrane separation device（5）And anaerobic expanded granular sludge bed（4）Between equipped with mixed liquor return
Flow tube（12）, the anaerobic expanded granular sludge bed（4）Top is also associated with collecting methane unit（14）；The aerobic unit includes
Oxygen activity sewage sludge reactor（6）With aerobic membrane separation device（7）, in aerobic membrane separation device（7）It becomes reconciled oxygen activity sludge reaction
Device（6）Between be equipped with mud return line（13）；The deep purifying unit includes ozone catalytic device（8）, activated carbon adsorption dress
It sets（9）With reverse osmosis membrane separation device（10）.
2. the system of the full embrane method processing environmental sanitation of outer separation according to claim 1 station filter liquor, it is characterised in that：It is described every
Oil groove（2）Form be flat flow, parallel plate type or inclined plate type.
3. the system of the full embrane method processing environmental sanitation of outer separation according to claim 1 station filter liquor, it is characterised in that：It is described to detest
Oxygen membrane separation device（5）With aerobic membrane separation device（7）On be equipped with external tubular membrane component.
4. a kind of method of outer separation full embrane method processing environmental sanitation station filter liquor, including using any in such as the claims 1-3
The system of outer separation full embrane method processing environmental sanitation station filter liquor described in, it is characterised in that：Filter liquor enters former pond through collecting
（1）, oil partition tank is lifted into through pump（2）After progress gravity removes oil slick, in ion flotation machine（3）In further remove oil emulsion and
It is partly dissolved oil；Waste water after oil removing enters anaerobic expanded granular sludge bed（4）, carry out herein the formation of granule sludge, expansion and into
Water be sufficiently mixed and the absorption of organic matter, mass transfer and degradation, then anaerobic expanded granular sludge bed（4）In muddy water mixed solution enter
Anaerobism membrane separation device（5）, the particle mixed liquor of the solid containing anaerobe is carried out under the hydraulic shear of appropriate flow velocity
Separation, wherein isolated solid-liquid mixed liquor passes through mixed-liquor return pipe（12）It is recycled to anaerobic expanded granular sludge bed（4）, separation
Water outlet enter aerobic activated sludge reactor（6）The aerobic decomposition of small organic molecule is carried out, while utilizing aerobic UF membrane
Device（7）Aerobic sludge is detached, wherein isolated sludge passes through mud return line（13）It is recycled to aerobic activity
Sewage sludge reactor（6）, isolated water outlet enters deep purifying unit, by ozone catalytic device（8）, activated carbon adsorption dress
It sets（9）With reverse osmosis membrane separation device（10）Processing after, reuse can be carried out.
5. the method for the full embrane method processing environmental sanitation of outer separation according to claim 4 station filter liquor, it is characterised in that：It is described to detest
Oxygen sludge bulking bed（4）The biogas of generation is discharged into collecting methane unit from top（14）, then utilize compressor by part biogas
It is sent into anaerobism membrane separation device（5）Entrance, and filter membrane is flowed through together with mixed liquor, then through mixed-liquor return pipe（12）It follows
Ring extremely enters anaerobic expanded granular sludge bed（4）Bottom simultaneously stirs sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010422.6A CN105481185B (en) | 2016-01-08 | 2016-01-08 | The system and method for outer separation full embrane method processing environmental sanitation station filter liquor |
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| CN101481197B (en) * | 2009-02-17 | 2011-07-20 | 吉林市世纪华扬环境工程有限公司 | Advanced treatment process for sewerage of oilfield heavy crude recovery |
| CN102249499B (en) * | 2011-07-13 | 2013-01-09 | 达斯玛环境科技（北京）有限公司 | Method for biochemically treating and discharging refinery wastewater within controlling index of national standard |
| CN205275428U (en) * | 2016-01-08 | 2016-06-01 | 宁波绿色方舟环境科技有限公司 | System for sanitation station filter liquor is handled from full embrane method to exterior division |
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