CN107032481A - A kind of biofilm packing and preparation method thereof and biofilm reactor - Google Patents
A kind of biofilm packing and preparation method thereof and biofilm reactor Download PDFInfo
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- CN107032481A CN107032481A CN201710300532.0A CN201710300532A CN107032481A CN 107032481 A CN107032481 A CN 107032481A CN 201710300532 A CN201710300532 A CN 201710300532A CN 107032481 A CN107032481 A CN 107032481A
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- 238000012856 packing Methods 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000003610 charcoal Substances 0.000 claims abstract description 61
- 239000010802 sludge Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 35
- 235000009496 Juglans regia Nutrition 0.000 claims abstract description 33
- 235000020234 walnut Nutrition 0.000 claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 25
- 239000011398 Portland cement Substances 0.000 claims abstract description 21
- 239000004411 aluminium Substances 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 18
- 239000000292 calcium oxide Substances 0.000 claims abstract description 18
- 241000758789 Juglans Species 0.000 claims description 32
- 239000002002 slurry Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 7
- 238000007569 slipcasting Methods 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 65
- 239000000945 filler Substances 0.000 abstract description 43
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 24
- 239000001301 oxygen Substances 0.000 abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 abstract description 24
- 244000005700 microbiome Species 0.000 abstract description 21
- 230000015556 catabolic process Effects 0.000 abstract description 11
- 238000006731 degradation reaction Methods 0.000 abstract description 11
- 230000002906 microbiologic effect Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009395 breeding Methods 0.000 abstract description 5
- 230000001488 breeding effect Effects 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 240000007049 Juglans regia Species 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 24
- 238000005273 aeration Methods 0.000 description 23
- 239000011148 porous material Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- 238000011049 filling Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000003763 carbonization Methods 0.000 description 5
- 238000011068 loading method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 230000035800 maturation Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000011396 hydraulic cement Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000012956 testing procedure Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
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- 239000004576 sand Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000011402 Portland pozzolan cement Substances 0.000 description 1
- 239000011401 Portland-fly ash cement Substances 0.000 description 1
- 241001092391 Sorbus Species 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003325 follicular Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 235000008345 mountainash Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010420 shell particle Substances 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003403 water pollutant Substances 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
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/107—Inorganic materials, e.g. sand, silicates
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention belongs to water treatment field, more particularly to a kind of biofilm packing and preparation method thereof and biofilm reactor.The biofilm packing is made up of water with the siccative including following parts by weight：25~30 parts of sludge organism charcoal；30~35 parts of walnut shell charcoal；15~20 parts of quick lime；20~25 parts of portland cement；0.3~0.5 part of aluminium powder.The present invention to the raw material type and content that prepare biofilm packing by optimizing, and acquisition intensity is high, biological affinity is good, and surface has more gauffer and the biofilm packing in duct.It is applied in biofilm reactor, the microorganism in sewage can not only be made in the firm attachment in its surface and quick breeding, higher transmission efficiency can also be kept with the oxygen in biofilm reactor, so as to shorten biofilm time of the microorganism on filler surface in sewage, the proportion and activity of aerobic microbiological in the biomembrane of filler surface adhesion are improved, and then improves the sewage degradation efficiency of membrane bioreactor.
Description
Technical field
The invention belongs to water treatment field, more particularly to a kind of biofilm packing and preparation method thereof and biomembrane reaction
Device.
Background technology
In recent years, along with economic fast development, China also brings a series of environment while GDP growths are pursued
Problem, wherein freshwater resources be in short supply to be forced town domestic sewage treatment technology to seem to be even more important.However as people's life water
The content of nitrogen and phosphorous increase in flat raising, town domestic sewage, organic principle is complicated, and traditional biological sewage treatment technology is
Paces can not be followed closely, treatment effect is not good, and biomembrance process handling process is by its treatment effeciency height, excess sludge sludge output
Less, the features such as operational management facilitates quickly is sent out, and is had broad application prospects in sewage disposal.
So-called biomembrance process, refers to that the microorganism (i.e. biomembrane) using apposition growth in some solids surfaces is had
The method of machine sewage disposal.Wherein, biomembrane is by the aerobic bacteria of highly dense, anaerobic bacteria, amphimicrobe, fungi, protozoan
And the ecosystem of the composition such as algae, and the solid dielectric of its attachment is then referred to as filler or carrier.At present, in biomembrane reaction
There are sand, anthracite, marble, dolomite, magnetic iron ore, garnet, manganese sand etc. natural using more extensive filler in device
Filler, and the artificial filler such as styrofoam ball, high-efficiency fiber beam, ceramic filter material, but using the life of above-mentioned filler
The problem of thing membrane reactor generally existing biofilm time length and low sewage degradation efficiency.
The content of the invention
In view of this, it is an object of the invention to provide a kind of biofilm packing and preparation method thereof and biomembrane reaction
Device, the biofilm reactor biofilm time for being filled with filler of the present invention is short, and sewage degradation efficiency is high.
The invention provides a kind of biofilm packing, it is made up of water with the siccative including following parts by weight：
It is preferred that, the average grain diameter of the sludge organism charcoal is 0.1~1mm.
It is preferred that, the average grain diameter of the walnut shell charcoal is 0.2~2cm.
It is preferred that, the mesh number of the aluminium powder is 50~500 mesh.
It is preferred that, the portland cement marked as P.C32.5, P.C42.5, P.C52.5, P.F32.5, P.F42.5,
One or more in P.F52.5, P.P42.5, P.P52.5, P.O42.5 and P.O52.5.
It is preferred that, the mass ratio of the water and siccative is (30~45)：(100~110).
The invention provides a kind of preparation method of biofilm packing described in above-mentioned technical proposal, comprise the following steps：
A) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement, aluminium powder and water mixing, obtain material feeding to be poured
Slurry；
B) by the slip casting to be cast into mould, slurry is got angry and solidified in a mold, obtains biofilm packing.
It is preferred that, the step a) is specifically included：
A1) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement and water mixing, obtain primary slurry；
A2) the primary slurry is mixed with aluminium powder, obtains slurry to be cast.
It is preferred that, in step b), in addition to：
After the slurry is got angry and solidified in a mold, conserved in feeding still kettle, obtain biofilm packing.
The invention provides a kind of biofilm reactor, including biofilm packing or above-mentioned skill described in above-mentioned technical proposal
Biofilm packing prepared by art scheme methods described.
Compared with prior art, the invention provides a kind of biofilm packing and preparation method thereof and biofilm reactor.
The biofilm packing that the present invention is provided is made up of water with the siccative including following parts by weight：25~30 parts of sludge organism charcoal；Walnut
30~35 parts of shell charcoal；15~20 parts of quick lime；20~25 parts of portland cement；0.3~0.5 part of aluminium powder.The present invention passes through
The raw material type and content for preparing biofilm packing are in optimized selection, acquisition intensity is high, biological affinity is good, and surface has
There are more gauffer and the biofilm packing in duct.It is applied in biofilm reactor, can not only makes the microorganism in sewage
Firm attachment and quick breeding on its surface, additionally it is possible to keep higher transmission efficiency with the oxygen in biofilm reactor, from
And shorten microorganism in sewage and, in the biofilm time on filler surface, improve aerobic microbiological in the biomembrane of filler surface adhesion
Proportion and activity, and then improve the sewage degradation efficiency of membrane bioreactor.Used in addition, preparing biofilm packing of the present invention
Sludge organism charcoal can be made up of sewage plant excess sludge, you can satisfaction recycle the need for, sludge treatment can be solved again
The problem of.Test result indicates that, under equal conditions, compared to the biofilm reactor of filling conventional filler, the filling present invention
The biofilm time of the biofilm reactor of filler shortens 6 days, biofilm thickness increase by 18.5%, water outlet TN ＜ after maturation
10mg/L, COD ＜ 50mg/L, BOD ＜ 10mg/L.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the structural representation of biofilm reactor provided in an embodiment of the present invention；
Fig. 2 is the structural representation that bubble provided in an embodiment of the present invention cuts orifice plate；
Fig. 3 is the scanning electron microscopic observation figure for a certain position of filler that the embodiment of the present invention 1 is provided；
Fig. 4 is the scanning electron microscopic observation figure for the filler another location that the embodiment of the present invention 1 is provided.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
The invention provides a kind of biofilm packing, it is made up of water with the siccative including following parts by weight：
The biofilm packing that the present invention is provided is made up of water and siccative, and the siccative includes sludge organism charcoal, walnut shell and given birth to
Thing charcoal, quick lime, portland cement and aluminium powder.Wherein, the average grain diameter of the sludge organism charcoal is preferably 0.1~1mm, specifically
Can for 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, 0.35mm, 0.36mm,
0.37mm、0.38mm、0.39mm、0.4mm、0.41mm、0.42mm、0.43mm、0.44mm、0.45mm、0.5mm、0.55mm、
0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm or 0.95mm；The specific surface area of the sludge organism charcoal
Preferably 10~100m2/ g, concretely 15m2/g、20m2/g、25m2/g、30m2/g、35m2/g、40m2/g、41m2/g、42m2/
g、43m2/g、44m2/g、45m2/g、46m2/g、47m2/g、48m2/g、49m2/g、50m2/g、51m2/g、52m2/g、53m2/g、
54m2/g、55m2/g、56m2/g、57m2/g、58m2/g、59m2/g、60m2/g、61m2/g、62m2/g、63m2/g、64m2/g、
65m2/g、66m2/g、67m2/g、68m2/g、69m2/g、70m2/g、75m2/g、80m2/g、85m2/g、90m2/ g or 95m2/g；Institute
The pore volume for stating sludge organism charcoal is preferably 0.01~0.1cm3/ g, concretely 0.015cm3/g、0.02cm3/g、
0.025cm3/g、0.03cm3/g、0.031cm3/g、0.032cm3/g、0.033cm3/g、0.034cm3/g、0.035cm3/g、
0.036cm3/g、0.037cm3/g、0.038cm3/g、0.039cm3/g、0.04cm3/g、0.041cm3/g、0.042cm3/g、
0.043cm3/g、0.044cm3/g、0.045cm3/g、0.046cm3/g、0.047cm3/g、0.048cm3/g、0.049cm3/g、
0.05cm3/g、0.051cm3/g、0.052cm3/g、0.053cm3/g、0.054cm3/g、0.055cm3/g、0.056cm3/g、
0.057cm3/g、0.058cm3/g、0.059cm3/g、0.06cm3/g、0.065cm3/g、0.07cm3/g、0.075cm3/g、
0.08cm3/g、0.085cm3/g、0.09cm3/ g or 0.095cm3/g.In the present invention, sludge organism carbon content described in siccative
For 25~30 parts by weight, concretely 25 parts by weight, 26 parts by weight, 27 parts by weight, 28 parts by weight, 29 parts by weight or 30 weight
Part.The source of the sludge organism charcoal is not particularly limited the present invention, can prepare in accordance with the following methods：Sewage disposal
After the residual active sludge of factory is dehydrated, dried, crushed and is carbonized successively, sludge organism charcoal is obtained.Wherein, it is described remaining living
Property sludge moisture content can be 40~70%, concretely 50%, 55%, 60% or 65%；The temperature of the drying is preferably
>=100 DEG C, more preferably 100~150 DEG C, concretely 105 DEG C, 110 DEG C, 115 DEG C, 120 DEG C, 125 DEG C, 130 DEG C, 135 DEG C,
140 DEG C or 145 DEG C；The time of the drying is not particularly limited the present invention, dries to constant weight；Obtained after the crushing
The average grain diameter of pellet be preferably 0.1~1mm, concretely 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm,
0.8mm or 0.9mm；The temperature of the carbonization is preferably 300~500 DEG C, concretely 310 DEG C, 320 DEG C, 330 DEG C, 340 DEG C,
350℃、360℃、370℃、380℃、390℃、400℃、410℃、420℃、430℃、440℃、450℃、460℃、470
DEG C, 480 DEG C or 490 DEG C；The time of the carbonization is preferably 0.5~2h, concretely 0.6h, 0.7h, 0.8h, 0.9h, 1h,
1.1h, 1.2h, 1.3h, 1.4h, 1.5h, 1.6h, 1.7h, 1.8h or 1.9h.
In the present invention, the average grain diameter of the walnut shell charcoal is preferably 0.2~2cm, concretely 0.25cm,
0.3cm、0.35cm、0.36cm、0.37cm、0.38cm、0.39cm、0.4cm、0.41cm、0.42cm、0.43cm、0.44cm、
0.45cm、0.46cm、0.47cm、0.48cm、0.49cm、0.5cm、0.55cm、0.6cm、0.65cm、0.7cm、0.71cm、
0.72cm、0.73cm、0.74cm、0.75cm、0.76cm、0.77cm、0.78cm、0.79cm、0.8cm、0.81cm、0.82cm、
0.83cm、0.84cm、0.85cm、0.86cm、0.87cm、0.88cm、0.89cm、0.9cm、0.91cm、0.92cm、0.93cm、
0.94cm, 0.95cm, 0.96cm, 0.97cm, 0.98cm or 0.99cm；The specific surface area of the walnut shell charcoal is preferably 50
~100m2/ g, concretely 55m2/g、60m2/g、65m2/g、66m2/g、67m2/g、68m2/g、69m2/g、70m2/g、71m2/
g、72m2/g、73m2/g、74m2/g、75m2/g、76m2/g、77m2/g、78m2/g、79m2/g、80m2/g、81m2/g、82m2/g、
83m2/g、84m2/g、85m2/g、90m2/ g or 95m2/g.In the present invention, the content of walnut shell charcoal is 30~35 in siccative
Parts by weight, concretely 30 parts by weight, 31 parts by weight, 32 parts by weight, 33 parts by weight, 34 parts by weight or 35 parts by weight.The present invention
The source of the walnut shell charcoal is not particularly limited, can be prepared in accordance with the following methods：Walnut shell particle is successively
After drying and carbonization, walnut shell charcoal is obtained.Wherein, the temperature of the drying is preferably >=100 DEG C, more preferably
100~150 DEG C, concretely 105 DEG C, 110 DEG C, 115 DEG C, 120 DEG C, 125 DEG C, 130 DEG C, 135 DEG C, 140 DEG C or 145 DEG C；Institute
It is preferably 12~96h to state the dry time, more preferably 24~72h, specifically may be selected to be 30h, 36h, 40h, 48h, 50h,
55h, 60h, 65h or 70h；The temperature of the carbonization is preferably 500~1000 DEG C, specifically may be selected to be 550 DEG C, 600 DEG C, 650
DEG C, 700 DEG C, 750 DEG C, 800 DEG C, 850 DEG C, 900 DEG C or 950 DEG C；The time of the carbonization is preferably 1~3h, specific to may be selected
For 1.1h, 1.2h, 1.3h, 1.4h, 1.5h, 1.6h, 1.7h, 1.8h, 1.9h, 2h, 2.1h, 2.2h, 2.3h, 2.4h, 2.5h,
2.6h, 2.7h, 2.8h, 2.9h or 3h.
In the present invention, the content of quick lime (CaO) is 15~20 parts by weight in siccative, concretely 15 parts by weight, 16
Parts by weight, 17 parts by weight, 18 parts by weight, 19 parts by weight or 20 parts by weight.The present invention is not special to the source of the quick lime
Limit, using commercially available quick lime.
In the present invention, the content of portland cement is 20~25 parts by weight in siccative, concretely 20 parts by weight, 21 weights
Measure part, 22 parts by weight, 23 parts by weight, 24 parts by weight or 25 parts by weight.In the present invention, the portland cement includes but not limited
One or more in portland-pozzolan cement, Portland fly ash cement and composite Portland cement；The silicate
The label of cement include but is not limited to P.C32.5, P.C42.5, P.C52.5, P.F32.5, P.F42.5, P.F52.5,
One or more in P.P42.5, P.P52.5, P.O42.5 and P.O52.5.The present invention does not have to the source of the portland cement
It is particularly limited to, using commercially available quick lime.
In the present invention, the content of aluminium powder is 0.3~0.5 parts by weight in siccative, concretely 0.31 parts by weight, 0.32 weight
Measure part, 0.33 parts by weight, 0.34 parts by weight, 0.35 parts by weight, 0.36 parts by weight, 0.37 parts by weight, 0.38 parts by weight, 0.39 weight
Measure part, 0.4 parts by weight, 0.41 parts by weight, 0.42 parts by weight, 0.43 parts by weight, 0.44 parts by weight, 0.45 parts by weight, 0.46 weight
Measure part, 0.47 parts by weight, 0.48 parts by weight or 0.49 parts by weight.In the present invention, the mesh number of the aluminium powder is preferably 50~500
Mesh, concretely 100 mesh, 150 mesh, 200 mesh, 250 mesh, 300 mesh, 350 mesh, 400 mesh or 450 mesh.
In the present invention, biofilm packing is made up of above-mentioned siccative and water.The mass ratio of the water and siccative is preferably (30
~45)：(100~110), more preferably (30~45)：(101~105), specifically may be selected to be 35：(101~105) or 40：
(101~105).In one embodiment for providing of the present invention, the water is 30~45 parts by weight, concretely 30 parts by weight,
31 parts by weight, 32 parts by weight, 33 parts by weight, 34 parts by weight, 35 parts by weight, 36 parts by weight, 37 parts by weight, 38 parts by weight, 39 weights
Measure part, 40 parts by weight, 41 parts by weight, 42 parts by weight, 43 parts by weight, 44 parts by weight or 45 parts by weight.
The shape of the biofilm packing is not particularly limited the present invention, can be seedpod of the lotus shape, fusiform, spherical or band
Shape etc..In one embodiment that the present invention is provided, the aeration tube phase that the biofilm packing can directly with biofilm reactor
Even, i.e., aeration tube can be preferably connected through a screw thread directly to aeration inside biofilm packing between biofilm packing and aeration tube.
The present invention obtains intensity high, raw by the way that the raw material type and content that prepare biofilm packing are in optimized selection
Thing affinity is good, and surface has more gauffer and the biofilm packing in duct.It is applied in biofilm reactor, not only
The microorganism in sewage can be made in the firm attachment in its surface and quick breeding, additionally it is possible to keep with the oxygen in biofilm reactor
Higher transmission efficiency, so that shortening microorganism in sewage, in the biofilm time on filler surface, improves the life of filler surface adhesion
The proportion and activity of aerobic microbiological in thing film, and then improve the sewage degradation efficiency of membrane bioreactor.In addition, preparing this hair
Sludge organism charcoal can be made up of sewage plant excess sludge used in bright biofilm packing, you can the need for satisfaction is recycled,
The problem of sludge treatment being solved again.
Test result indicates that, the surface for the biofilm packing that the present invention is provided is covered with duct and gauffer, and outside duct is under
It is supreme to become big successively, connected mostly between internal gutter, the filler of this pattern is favorably improved filler and the transmission of oxygen is imitated
Rate, so as to improve the proportion and activity of aerobic microbiological on filler, and then improves sewage degradation efficiency；Under equal conditions, phase
Compared with the biofilm reactor of filling conventional filler, the biofilm time for loading the biofilm reactor of filler of the present invention shortens 6
My god, biofilm thickness increase by 18.5%, water outlet TN ＜ 10mg/L, COD ＜ 50mg/L, BOD ＜ 10mg/L after maturation.
The invention provides a kind of preparation method of biofilm packing described in above-mentioned technical proposal, comprise the following steps：
A) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement, aluminium powder and water mixing, obtain material feeding to be poured
Slurry；
B) by the slip casting to be cast into mould, slurry to be cast is got angry and solidified in a mold, obtains biology
Film filler.
In the preparation method that the present invention is provided, first by sludge organism charcoal, walnut shell charcoal, quick lime, silicate
Cement, aluminium powder and water mixing, obtain slurry to be cast.In the present invention, above-mentioned raw materials are preferably mixed in such a way：
A1) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement and water mixing, obtain primary slurry；
A2) the primary slurry is mixed with aluminium powder, obtains slurry to be cast；Wherein, the primary slurry is mixed with aluminium powder
Time be preferably 5~15min, concretely 5min, 6min, 7min, 8min, 9min, 10min, 11min, 12min,
13min, 14min or 15min.
Obtain after slurry to be cast, by the slip casting to be cast into mould, slurry is got angry and solidified in a mold.
In the present invention, the mould is porous mold, and the gas that slurry is produced during getting angry discharges mould by hole.In the present invention
In, the time that slurry is got angry and solidified in a mold is preferably 2~15h, concretely 3h, 4h, 5h, 6h, 7h, 8h, 9h, 10h,
11h, 12h, 13h or 14h.After slurry is got angry and solidifies and finish in a mold, biofilm packing is obtained.In the present invention, it is described
After slurry is got angry and solidified in a mold, it is preferably sent to conserve in still kettle.Wherein, the vapour pressure of the maintenance is preferably 0.5
~1.5MPa, specifically may be selected to be 0.6MPa, 0.7MPa, 0.8MPa, 0.9MPa, 1MPa, 1.1MPa, 1.2MPa, 1.3MPa or
1.4MPa；The temperature of the maintenance is preferably 60~120 DEG C, specifically may be selected to be 70 DEG C, 80 DEG C, 90 DEG C, 100 DEG C or 110 DEG C；
The time of the maintenance is preferably 6~24h, specifically may be selected to be 7h, 8h, 9h, 10h, 11h, 12h, 13h, 14h, 15h, 16h,
17h, 18h, 19h, 20h, 21h, 22h or 23h.After maintenance is finished, go out kettle, obtain intensity more excellent biofilm packing.
The present invention obtains intensity high, raw by the way that the raw material type and content that prepare biofilm packing are in optimized selection
Thing affinity is good, and surface has more gauffer and the biofilm packing in duct.It is applied in biofilm reactor, not only
The microorganism in sewage can be made in the firm attachment in its surface and quick breeding, additionally it is possible to keep with the oxygen in biofilm reactor
Higher transmission efficiency, so that shortening microorganism in sewage, in the biofilm time on filler surface, improves the life of filler surface adhesion
The proportion and activity of aerobic microbiological in thing film, and then improve the sewage degradation efficiency of membrane bioreactor.In addition, preparing this hair
Sludge organism charcoal can be made up of sewage plant excess sludge used in bright biofilm packing, you can the need for satisfaction is recycled,
The problem of sludge treatment being solved again.Test result indicates that, under equal conditions, compared to the biomembrane of filling conventional filler
Reactor, the biofilm time for loading the biofilm reactor of filler of the present invention shortens 6 days, biofilm thickness increase after maturation
18.5%, water outlet TN ＜ 10mg/L, COD ＜ 50mg/L, BOD ＜ 10mg/L.
The invention provides a kind of biofilm reactor, including biofilm packing or above-mentioned skill described in above-mentioned technical proposal
Biofilm packing prepared by art scheme methods described.
Referring to Fig. 1, Fig. 1 is the structural representation of biofilm reactor provided in an embodiment of the present invention.In Fig. 1,1 is sewage
Reaction tank, 2 be aeration tube, and 3 be outlet position, and 4 be biofilm packing, and 5 be bubble cutter.6 be air blower.
The biofilm reactor that the present invention is provided includes sewage reaction tank 1, is arranged on the aeration tube 2 in sewage reaction tank 1,
With the filler being seated in sewage reaction tank 1.Wherein, water inlet and delivery port are provided with sewage reaction tank 1, it is pending
Sewage enters in sewage reaction tank 1 from water inlet, and progress biomembrance process processing, the sewage after processing in sewage reaction tank 1
From delivery port discharge, subsequent handling is flowed into.
In the present invention, aeration tube 2 is used to be aerated into sewage reaction tank 1, is that sewage reaction tank 1 provides oxygen atmosphere.
In the present invention, gas in several outlets position 3, aeration tube 2 is provided with aeration tube 2 to discharge from outlet position 3.Carried in the present invention
In one embodiment of confession, valve is provided with each outlet position 3, the capacity for adjusting outlet position 3.In present invention offer
One embodiment in, the air inlet of aeration tube 2 is connected with the gas outlet of air blower 6.
In the present invention, biofilm packing 4 is located at the inner chamber of sewage reaction tank 1, when biofilm reactor is run, in sewage
Microorganism can form biomembrane on the surface of biofilm packing 4, and biomembrane can degrade to the polluter in sewage.In this hair
In one embodiment of bright offer, biofilm packing 4 is connected with outlet position 3.It is biological in one embodiment that the present invention is provided
It is connected through a screw thread between film filler 4 and outlet position 3.In the present invention, biofilm packing 4 is connected with outlet position 3 can make aeration
Pipe is directly to aeration inside biofilm packing, so that the microorganism in the biomembrane adhered on biofilm packing obtains abundance
Oxygen amount, it is ensured that microorganism is fully in aerobic environment, improves degraded of the aerobic microbiological to water pollutant in biomembrane and imitates
Rate.The shape of biofilm packing 3 is not particularly limited the present invention, can be seedpod of the lotus shape, fusiform, spherical or with shape etc..
In one embodiment that the present invention is provided, bubble cutter is additionally provided between biofilm packing 4 and outlet position 3
5, the bubble for the air of the discharge of outlet position 3 to be cut into certain diameter improves oxygen transfer efficiency.Bubble cutter 5
Inlet end is connected with outlet position 3, and the outlet side of bubble cutter 5 is connected with biofilm packing 4, the inner chamber edge of bubble cutter 5
Gas motion direction is provided with bubble cutting orifice plate, cut as shown in Fig. 2 Fig. 2 is bubble provided in an embodiment of the present invention
Cut the structural representation of orifice plate.In one embodiment that the present invention is provided, spiral shell is passed through between bubble cutter 5 and outlet position 3
Line is connected, and is connected through a screw thread between bubble cutter 5 and biofilm packing 4.In one embodiment that the present invention is provided, gas
Handle is provided with the outer wall for steeping cutter 5, consequently facilitating the dismounting and installation of bubble cutter 5.
In the present invention, the running of biofilm reactor is as follows：Sewage enters anti-from the water inlet of sewage reaction tank
Ying Chi, while being aerated to improve the microorganism in the oxygen content in sewage, sewage in reaction tank into reaction tank by aeration tube
Interior filler surface biofilm, the microorganism formed after a period of time in stable biomembrane, biomembrane is to the pollutant in sewage
Degraded, so as to realize the purification to sewage.
The microorganism that the biofilm reactor that the present invention is provided is filled with homemade biofilm packing, sewage can be in the life
The firm attachment in thing film filler surface and quick breeding, and the biofilm packing can be kept with the oxygen in biofilm reactor compared with
High transmission efficiency, in the biofilm time on filler surface, the life of filler surface adhesion is improved so as to shorten microorganism in sewage
The proportion and activity of aerobic microbiological in thing film, and then there is the biofilm reactor for providing the present invention higher sewage to drop
Solve efficiency.Test result indicates that, under equal conditions, compared to traditional biofilm reactor is filled, biomembrane of the present invention is anti-
The biofilm time of device is answered to shorten 6 days, biofilm thickness increase by 18.5%, water outlet TN ＜ 10mg/L, COD ＜ 50mg/ after maturation
L, BOD ＜ 10mg/L.
In addition, biofilm reactor and its preferred implementation scheme that the present invention is provided are compared to traditional biomembrane reaction
Device, also has the following advantages that：
(1) purpose of biofilm aeration is to make to be attached to aerobic microbiological in biomembrane to obtain sufficient oxygen amount, traditional
The approach that microorganism on biomembrane obtains oxygen is：" aeration follicular rupture → Dissolved Oxygen in Water increase → biomembrane obtains oxygen
→ contaminant degradation ", oxygen transmission chain is long, and transfer efficiency is low, causes substantial amounts of energy waste.The optimization technique side of the present invention
Biofilm packing is connected by case with aeration tube, and biofilm packing inside is aerated, and the approach that microorganism obtains oxygen is changed into：" expose
Bubbles burst → biomembrane obtains oxygen → contaminant degradation ", oxygen transmission chain is shortened, filling for biomembrane is substantially increased
Oxygen efficiency, reduces aeration power consumption.
(2) oxygen is transferred to biofilm surface by conventional art indirectly by sewage, is caused in biofilm surface and sewage
Oxygen content is higher, and the inside oxygen content of film is not high, and research shows, generally maximum penetration depth of the oxygen in biomembrane
No more than 150um, and biofilm thickness is generally 2mm or so, therefore in biomembrane inner most region in anaerobic state,
So as to limit degradation efficiency of the aerobic microbiological to pollutant.The preferred technical solution of the present invention is by biofilm packing with being aerated
Pipe is connected, and biofilm packing inside is aerated, and can make to be in aerobic state inside biomembrane, is conducive to improving aerobic on biomembrane
The proportion and activity of microorganism, so as to improve sewage degradation efficiency.
(3) traditional biofilm reactor according to by filler fixed placement after certain block region, filler filling with dismounting very
Filler is connected through a screw thread by inconvenience, the preferred technical solution of the present invention with aerator, and periphery is provided with handle convenient use
Instrument or hand dismounting and installation.One side filler can be directly installed on newly-built pond in other ripe water environments after biofilm
In, reduce debug time；On the other hand, the type and quantity of biomembrane can according to different quality water demand arbitrarily increase and decrease and
Change；Meanwhile, the mode of dismantled and assembled connection is also beneficial to equipment inspection and maintenance.
(4) the preferred technical solution of the present invention is provided with valve on the outlet position of aeration tube, can be according to technique needs
By Valve controlling aeration quantity, regulation biofilm thickness and dominant bacteria.
(5) the preferred technical solution of the present invention can freely load and unload biofilm packing movement, can make biomembrane suitable
Environment in be transferred to new cesspool after culture biofilm, shorten the engineering debugging startup time, also can run process in reactor
In inoculation benign strain elsewhere as needed, be easy to maintenance and management.
For the sake of becoming apparent from, it is described in detail below by following examples.
Embodiment 1
Prepare biofilm packing
The weight proportion of biofilm packing each component composition is as follows：Aluminium powder (200 mesh) 0.35g, sludge organism charcoal 30g, fire
Mountain ash portland cement (P.P32.5) 25g, walnut shell charcoal 30g, lime 17g, water 40g.
(1) preparation of sludge organism charcoal：Guangzhou sewage disposal plant excess sludge (moisture content 55%), after dehydration
Dried in baking oven under the conditions of 105 DEG C to constant weight, be ground into 0.5mm or so particle, then move into isolation air heating in Muffle furnace
To 400 DEG C of constant temperature charing 60min, stop heating, be detained 1 hour in stove, take out standby.To the flat of the sludge organism charcoal of preparation
Equal particle diameter, specific surface area and pore volume detected, as a result for：Average grain diameter 0.38mm, specific surface area 51.332m2/ g, pore volume
Product 0.04621cm3/g。
(2) preparation of walnut shell charcoal：Walnut shell powder is broken into 1cm × 1cm bulk, in an oven 120 DEG C of conditions
Lower drying 48 hours, moves into isolation air in Muffle furnace and is heated to 700 DEG C of constant temperature charing 1.5h, stop heating, be detained in stove
1h, takes out standby.Average grain diameter and specific surface area to the walnut shell charcoal of preparation detect, as a result for：Average grain diameter
0.39cm, specific surface area 74.252m2/g。
(3) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement are pressed into the dry-mixed stirring of above-mentioned weight proportion
Uniformly, primary slurry is made in the stirring that adds water, and adds aluminium powder stirring 10min, and injection porous mold is got angry 6h, finally sends into steam pressure
Kettle, conserves 12h under the conditions of 0.85MPa vapour pressures, 90 DEG C, obtains biofilm packing.
Electron microscopic observation, specific surface area detection and aperture size detection are scanned to obtained biofilm packing.Wherein, sweep
Retouch electron microscopic observation figure as shown in Figure 3 and Figure 4, Fig. 3 and Fig. 4 are the scanning electricity for the filler diverse location that the embodiment of the present invention 1 is provided
Sem observation figure.By Fig. 3~4 as can be seen that the surface of biofilm packing manufactured in the present embodiment is covered with duct and gauffer.Compare table
Area detecting result is：45.486m2/g.Aperture size testing result is：Average pore size is in 1mm or so inside biofilm packing,
And connected mostly between duct；Outside duct becomes big, bottom average pore size 5mm or so, top average pore size successively from bottom to up
20mm or so.
Using GB/T17671-1999《Test method for strength of hydraulic cement mortar (ISO methods)》Testing procedure and requirement are to obtained
Biofilm packing carries out strength test, using shake table mode, 8 ° of Intensity of Breaking Tester, and counterweight lever is in equilbrium position, supports
17 DEG C of temperature, loading speed 1700N/s are protected, test result is that 3d rupture strengths are 2.0MPa, and 3d compression strength is 10.1MPa.
Embodiment 2
Prepare biofilm packing
The weight proportion of biofilm packing each component composition is as follows：Aluminium powder (300 mesh) 0.40g, sludge organism charcoal 25g, powder
Coal ash portland cement (P.F42.5) 25g, walnut shell charcoal 32g, lime 18g, water 42g.
(1) preparation of sludge organism charcoal：Guangzhou sewage disposal plant excess sludge (moisture content 60%), after dehydration
Dried in baking oven under the conditions of 110 DEG C to constant weight, be ground into 0.5mm or so particle, then move into isolation air heating in Muffle furnace
To 430 DEG C of constant temperature charing 1.2h, stop heating, be detained 1 hour in stove, take out standby.To the flat of the sludge organism charcoal of preparation
Equal particle diameter, specific surface area and pore volume detected, as a result for：Average grain diameter 0.36mm, specific surface area 60.401m2/ g, pore volume
Product 0.06471cm3/g。
(2) preparation of walnut shell charcoal：Walnut shell powder is broken into 1cm × 1cm bulk, in an oven 105 DEG C of conditions
Lower drying 48 hours, moves into isolation air in Muffle furnace and is heated to 600 DEG C of constant temperature charing 2h, stop heating, 1h is detained in stove,
Take out standby.Average grain diameter and specific surface area to the walnut shell charcoal of preparation detect, as a result for：Average grain diameter
0.45cm, specific surface area 79.203m2/g。
(3) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement are pressed into the dry-mixed stirring of above-mentioned weight proportion
Uniformly, primary slurry is made in the stirring that adds water, and adds aluminium powder stirring 10min, and injection porous mold is got angry 7h, finally sends into steam pressure
Kettle, conserves 12h under the conditions of 0.85MPa vapour pressures, 90 DEG C, obtains biofilm packing.
Specific surface area detection and aperture size detection are carried out to obtained biofilm packing.Specific surface area testing result is：
51.691m2/g.Aperture size testing result is：Average pore size is most between 1mm or so, and duct inside biofilm packing
Connection；Outside duct becomes big, bottom average pore size 5mm or so, top average pore size 20mm or so successively from bottom to up.
Using GB/T17671-1999《Test method for strength of hydraulic cement mortar (ISO methods)》Testing procedure and requirement are to obtained
Biofilm packing carries out strength test, using shake table mode, 9 ° of Intensity of Breaking Tester, and counterweight lever is in equilbrium position, supports
17 DEG C of temperature, loading speed 1500N/s are protected, test result is that 3d rupture strengths are 2.3MPa, and 3d compression strength is 10.9MPa.
Embodiment 3
Prepare biofilm packing
The weight proportion of biofilm packing each component composition is as follows：Aluminium powder (400 mesh) 0.45g, sludge organism charcoal 27g is multiple
Close portland cement (P.C42.5) 25g, walnut shell charcoal 30g, lime 19g, water 44g.
(1) preparation of sludge organism charcoal：Guangzhou sewage disposal plant excess sludge (moisture content 65%), after dehydration
Dried in baking oven under the conditions of 105 DEG C to constant weight, be ground into 0.5mm or so particle, then move into isolation air heating in Muffle furnace
To 450 DEG C of constant temperature charing 1.2h, stop heating, be detained 1 hour in stove, take out standby.To the flat of the sludge organism charcoal of preparation
Equal particle diameter, specific surface area and pore volume detected, as a result for：Average grain diameter 0.35mm, specific surface area 59.732m2/ g, pore volume
Product 0.05381cm3/g。
(2) preparation of walnut shell charcoal：Walnut shell powder is broken into 1cm × 1cm bulk, in an oven 120 DEG C of conditions
Lower drying 48 hours, moves into isolation air in Muffle furnace and is heated to 650 DEG C of constant temperature charing 2h, stop heating, 1h is detained in stove,
Take out standby.Average grain diameter and specific surface area to the walnut shell charcoal of preparation detect, as a result for：Average grain diameter
0.42cm, specific surface area 81.065m2/g。
(3) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement are pressed into the dry-mixed stirring of above-mentioned weight proportion
Uniformly, primary slurry is made in the stirring that adds water, and adds aluminium powder stirring 10min, and injection porous mold is got angry 8h, finally sends into steam pressure
Kettle, conserves 12h under the conditions of 0.85MPa vapour pressures, 90 DEG C, obtains biofilm packing.
Specific surface area detection and aperture size detection are carried out to obtained biofilm packing.Specific surface area testing result is：
48.266m2/g.Aperture size testing result is：Average pore size is most between 1mm or so, and duct inside biofilm packing
Connection；Outside duct becomes big, bottom average pore size 5mm or so, top average pore size 20mm or so successively from bottom to up.
Using GB/T17671-1999《Test method for strength of hydraulic cement mortar (ISO methods)》Testing procedure and requirement are to obtained
Biofilm packing carries out strength test, using shake table mode, 10 ° of Intensity of Breaking Tester, and counterweight lever is in equilbrium position, supports
17 DEG C of temperature, loading speed 1700N/s are protected, test result is that 3d rupture strengths are 2.3MPa, and 3d compression strength is 11.1MPa.
Embodiment 4
Biofilm reactor
The present embodiment 1 provides a kind of biofilm reactor of structure shown in Fig. 1, biomembrane provided in an embodiment of the present invention
Reactor includes sewage reaction tank 1, is arranged on the aeration tube 2 in sewage reaction tank 1, and be seated in filling out in sewage reaction tank 1
Material.
Wherein, water inlet and water outlet are provided with sewage reaction tank 1 (length × width × height=0.8m × 0.32m × 0.45m)
Mouthful.The air inlet of aeration tube 2 is connected with the gas outlet of air blower 6, and being averagely provided with 2 along its length on aeration tube 2 goes out
Valve is provided with gas position 3, each outlet position 3, the outlet side of each outlet position 3 is respectively connected with bubble cutter 5, and bubble is cut
The inner chamber edge of cutter 5 is provided with bubble cutting orifice plate, the outer wall of bubble cutter 5 perpendicular to gas motion direction and is provided with hand
Handle, the outlet side of each bubble cutter 5 is connected with a biofilm packing 4, leads between bubble cutter 5 and outlet position 3
Threaded connection is crossed, is connected through a screw thread between bubble cutter 5 and biofilm packing 4.
In the present embodiment, the biofilm packing that biofilm packing 4 is prepared using embodiment 1, it is shaped as seedpod of the lotus shape, tool
Body size is maximum gauge × height=0.2m × 0.32m.
The running of the biofilm reactor is：The water inlet of sewage from sewage reaction tank enters reaction tank, leads to simultaneously
Cross aeration tube to be aerated to the inside of biofilm packing, filler surface biofilm of the microorganism in sewage in reaction tank, at one section
Between after the microorganism that is formed in stable biomembrane, biomembrane the pollutant in sewage is degraded, so as to realize to sewage
Purification.
Embodiment 5
Biofilm reactor
With reference to the biofilm reactor of embodiment 4, it differs only in the life that biofilm packing 4 is prepared using embodiment 2
Thing film filler, the shape and size of filler keep constant.
Embodiment 6
Biofilm reactor
With reference to the biofilm reactor of embodiment 4, it differs only in the life that biofilm packing 4 is prepared using embodiment 3
Thing film filler, the shape and size of filler keep constant.
Comparative example
Biofilm reactor
With reference to the biofilm reactor of embodiment 4, it is public using Guangdong environmental protection equipment that it differs only in biofilm packing 4
The polypropylene filler for flower ring of department, material：PP, specification：DG20 rings, 145 × 48 × 3 × 6mm.
Embodiment 7
The wastewater treatment efficiency of different biofilm reactors compares
The biofilm reactor that embodiment 4~6 and comparative example is respectively adopted carries out sewage disposal, and service condition is：One
Between atmospheric pressure, 20~30 DEG C of water temperature, sewage quality (COD=247 ± 15mg/L, BOD=135 ± 12mg/L, TN=14.2 ±
0.9mg/L, NH4+- N=8.1 ± 1.3mg/L), biofilm surface dissolved oxygen content 1.8-2.6mg/L, pH value 6.2-7.5, sewage
Residence time is 7.5h.
On this condition, the biofilm time of embodiment 4 is 23 days, and the thickness after biomembrane is ripe is 1.50mm；Embodiment 5
The biofilm time be 25 days, the thickness after biomembrane is ripe is 1.44cm；The biofilm time of embodiment 6 be 23 days, biomembrane into
Thickness after ripe is 1.47cm；The biofilm time of comparative example is 30 days, and the thickness after biomembrane is ripe is 1.24mm.
After stable operation, water outlet TN ＜ 5mg/L, COD ＜ 50mg/L, the BOD ＜ 10mg/ of the biofilm reactor of embodiment 4
L, water outlet TN ＜ 6mg/L, COD ＜ 50mg/L, the BOD ＜ 13mg/L of the biofilm reactor of embodiment 5, the biomembrane of embodiment 6 is anti-
Water outlet TN ＜ 5mg/L, COD ＜ 50mg/L, the BOD ＜ 12mg/L of device are answered, is reached《Urban wastewater treatment firm pollutant emission mark
Accurate (GB18918-2002)》One-level B standard；Water outlet TN ＜ 10mg/L, COD ＜ 58mg/L, BOD of comparative example biofilm reactor
＜ 20mg/L.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of biofilm packing, is made up of water with the siccative including following parts by weight：
2. biofilm packing according to claim 1, it is characterised in that the average grain diameter of the sludge organism charcoal is 0.1
~1mm.
3. biofilm packing according to claim 1, it is characterised in that the average grain diameter of the walnut shell charcoal is
0.2~2cm.
4. biofilm packing according to claim 1, it is characterised in that the mesh number of the aluminium powder is 50~500 mesh.
5. biofilm packing according to claim 1, it is characterised in that the portland cement marked as P.C32.5,
In P.C42.5, P.C52.5, P.F32.5, P.F42.5, P.F52.5, P.P42.5, P.P52.5, P.O42.5 and P.O52.5
It is one or more.
6. biofilm packing according to claim 1, it is characterised in that the mass ratio of the water and siccative for (30~
45)：(100~110).
7. a kind of preparation method of any one of claim 1~6 biofilm packing, comprises the following steps：
A) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement, aluminium powder and water mixing, obtain slurry to be cast；
B) by the slip casting to be cast into mould, slurry is got angry and solidified in a mold, obtains biofilm packing.
8. preparation method according to claim 7, it is characterised in that the step a) is specifically included：
A1) sludge organism charcoal, walnut shell charcoal, quick lime, portland cement and water mixing, obtain primary slurry；
A2) the primary slurry is mixed with aluminium powder, obtains slurry to be cast.
9. preparation method according to claim 7, it is characterised in that in step b), in addition to：
After the slurry is got angry and solidified in a mold, conserved in feeding still kettle, obtain biofilm packing.
10. a kind of biofilm reactor, including biofilm packing or claim 7~9 described in any one of claim 1~6
Biofilm packing prepared by any one methods described.
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| CN112588103A (en) * | 2020-11-16 | 2021-04-02 | 同济大学 | Membrane-based waste gas biological treatment method and system |
| CN113248075A (en) * | 2021-03-29 | 2021-08-13 | 贵州雏阳生态环保科技有限公司 | Preparation and use method of wetland filler |
| CN113772809A (en) * | 2021-09-14 | 2021-12-10 | 同济大学 | Adsorption filler synergistic bioactivation permeable reaction column and preparation method and application thereof |
| CN114890533A (en) * | 2022-05-20 | 2022-08-12 | 中冶生态环保集团有限公司 | Sludge-based biochar carrier material, preparation method thereof and water purification system |
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| CN112588103A (en) * | 2020-11-16 | 2021-04-02 | 同济大学 | Membrane-based waste gas biological treatment method and system |
| CN112588103B (en) * | 2020-11-16 | 2022-07-29 | 同济大学 | Membrane-based waste gas biological treatment method and system |
| CN113248075A (en) * | 2021-03-29 | 2021-08-13 | 贵州雏阳生态环保科技有限公司 | Preparation and use method of wetland filler |
| CN113772809A (en) * | 2021-09-14 | 2021-12-10 | 同济大学 | Adsorption filler synergistic bioactivation permeable reaction column and preparation method and application thereof |
| CN114890533A (en) * | 2022-05-20 | 2022-08-12 | 中冶生态环保集团有限公司 | Sludge-based biochar carrier material, preparation method thereof and water purification system |
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