CN110156162A - The micro- light bed biochemical treatment apparatus of one kind and sewage water treatment method - Google Patents
The micro- light bed biochemical treatment apparatus of one kind and sewage water treatment method Download PDFInfo
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- CN110156162A CN110156162A CN201910483527.7A CN201910483527A CN110156162A CN 110156162 A CN110156162 A CN 110156162A CN 201910483527 A CN201910483527 A CN 201910483527A CN 110156162 A CN110156162 A CN 110156162A
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- 239000010865 sewage Substances 0.000 title claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910001868 water Inorganic materials 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 74
- 239000000945 filler Substances 0.000 claims abstract description 64
- 239000010802 sludge Substances 0.000 claims abstract description 53
- 239000006185 dispersion Substances 0.000 claims abstract description 46
- 238000004062 sedimentation Methods 0.000 claims description 32
- 230000007423 decrease Effects 0.000 claims description 20
- 238000005273 aeration Methods 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 5
- 238000004299 exfoliation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 239000002028 Biomass Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 10
- 230000000813 microbial effect Effects 0.000 description 10
- 238000011068 loading method Methods 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 230000001376 precipitating effect Effects 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 2
- 229920000037 Polyproline Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of micro- light bed biochemical treatment apparatus and sewage water treatment method, device mainly includes shell (100), and shell (100) interior lower part is equipped with sewage diposal area (200), and top is communicated with sludge pipe (36)；It is equipped in sewage diposal area (200) from bottom to top including anoxic zone (10) or further comprises the first processing units (1) of anaerobic zone and the second processing unit (2) including aerobic zone (20), it is respectively arranged with the first and second identical or different dispersion of density in the first processing units (1) of sewage diposal area (200), the second processing unit (2) and declines lightweight filler (16,26), is provided with separating screen (211) at the top of sewage diposal area (200)；First and second processing unit (1,2) insole portion is not equipped with the first and second air charging system (12,22).The device have the advantages that sludge concentration it is high, it is simple and compact for structure, land occupation less, stable effluent quality it is reliable, it is convenient to carry out and maintenance and low energy consumption.
Description
Technical field
The present invention relates to technical field of sewage, more specifically, it relates to a kind of micro- light bed biochemical treatment apparatus and
Sewage water treatment method.
Background technique
With the rapid development of our country's economy with the continuous improvement of living standards of the people, wastewater discharge is all with day therewith
Increase, the destruction of China's ecological environment and water resource is also increasingly shown.In order to further preserve the ecological environment and water resource, China
Environmental regulation it is increasingly stringent, to target contaminants such as COD, ammonia nitrogen, total nitrogen and the total phosphorus of each size sewage treatment plant (station)
Control requires also higher and higher.Biochemical method is the main of most common generally acknowledged relatively economical in each size sewage treatment plant (station)
Processing method mainly includes that, with AO, A2O technique and its improved process, oxidation ditch, Cass technique, SBR technique etc. is representative
Traditional activated sludge process, and with biological aerated filter (abbreviation BAF), biological contact oxidation process and moving bed biofilm reactor
(abbreviation MBBR) is the biofilm of representative, and take membrane bioreactor (abbreviation MBR) as the high-concentration activated sludge of representative
Method.
In order to improve treatment effeciency and stability, universal thinking is to improve the volumetric loading of biochemistry pool, and improve biochemical
Effective way of pool volume load is usually to improve sludge concentration or microbial biomass.For the existing above method, in practical operation
In the process, higher sludge concentration brings very big test to the normal operation of its subsequent precipitation ring section or mud-water separation link,
It is generally difficult to lasting stable operation, the sludge concentration and microbial biomass for being unfavorable for further increasing in biochemistry pool are especially good
The sludge concentration and microbial biomass of oxygen area or aerobic period are unfavorable for further increasing and excavate removing for aerobic zone or aerobic period
Carbon and nitrification effect.
Summary of the invention
The advantage and disadvantage of comprehensive existing biochemical process method, the present inventor design warp according to the production for being engaged in water process for many years
It tests, develops the micro- light bed biochemical treatment apparatus of one kind and sewage water treatment method, can more efficiently improve the sludge of biochemistry pool
The sludge concentration and microbial biomass of concentration and microorganism total amount, especially aerobic zone, so as to greatly reduce biochemical reactor
Volume and the residence time, and operation energy consumption is effectively reduced and improves stability, while saving land occupation and investment.
Specifically, the present invention provides the following technical scheme that a kind of micro- light bed biochemical treatment apparatus, including shell, it is described
Lower part of the housing is communicated with water inlet pipe, and top is communicated with outlet pipe；The enclosure interior is equipped with sewage diposal area, and the top of shell connects
It is connected with sludge pipe；First processing units and the second processing unit are equipped in the sewage diposal area from bottom to top, the first processing is single
Member is including at least one anoxic zone or including at least one anoxic zone and at least one anaerobic zone, the second processing unit packet
Include at least one aerobic zone；Density phase is respectively equipped in first processing units, the second processing unit in the sewage diposal area
With or first and second different dispersions decline lightweight filler, the decline density of lightweight filler of the first and second dispersion is the 0.65 of sewage density
~ 1.00 times；The separating screen for separating filler is provided at the top of the sewage diposal area；Bottom in the first processing units
Portion is equipped with the first air charging system for flushing, and the second processing unit bottom is equipped with for aeration in sewage treatment
Two air charging systems.
Further, the arbitrary cross section of the shell is circle, perhaps the positive side n shape and n >=4 or rectangle.
Further, first and second dispersion decline lightweight filler be respectively regular shape entity, maximum straight-line dimension is small
It in 5mm, such as can be 5~300mm；Specific surface area is not less than 300m2/m3, such as can be 300~2000m2/m3；And
When sewage body flows through, the first dispersion for being suspended in first processing units declines volume shared by lightweight filler not less than first processing
The 50% of unit volume, and first and second dispersion decline lightweight filler packing volume be not higher than sewage diposal area total measurement (volume) 90%.
Further, it is equipped in the shell and enclosure interior is separated to form the sewage diposal area and is located at sewage treatment
The tubaeform isolating cylinder of the sedimentation basin of area's top peripheral, tubaeform isolating cylinder bottom end outer rim are connected with inner walls, it is tubaeform every
Horn mouth from cylinder is towards housing bottom；Separating screen is located in tubaeform isolating cylinder and its edge and tubaeform isolating cylinder inner wall
It is connected.
Further, it is equipped with positioned at the periphery of tubaeform isolating cylinder for guiding from tubaeform isolating cylinder top in the shell
The guiding device of sewage flow direction precipitating bottom of pond portion after the processing of portion's outflow.
Further, tubaeform isolating cylinder top coaxial line is arranged with tubaeform guide shell, the tubaeform guide shell
For horn mouth towards housing bottom, the tubaeform guide shell top is higher than the top of the tubaeform isolating cylinder, described tubaeform
Guide shell bottom end is higher than the bottom of sedimentation basin；The tubaeform guide shell inner wall with it is described it is tubaeform be isolated between drum outer wall formed
Annular channel；The arbitrary cross section of the tubaeform isolating cylinder and the tubaeform guide shell is respectively circle, or the positive side n shape
And n >=4 or rectangle.
Further, the sedimentation basin top is equipped with effluent collection slot, and the effluent collection slot is connected to outlet pipe；Sludge pipe
It is connected to the bottom of sedimentation basin；The bottom of sedimentation basin is also communicated with the return pipe being connected to water inlet pipe.
Further, the cross section geometry that the shell corresponds to the precipitating bottom of pond portion above section corresponds to greater than it
The cross section geometry of the precipitating bottom of pond portion.
Sewage water treatment method provided by the invention, comprising the following steps:
So that sewage is entered sewage diposal area from the first processing units bottom by water inlet pipe, is successively flowed through upwards by part
The one dispersion lightweight filler that declines is suspended in first processing units and is formed by bed and is declined lightweight filler and remaining the by the second dispersion
The one dispersion lightweight filler that declines is suspended in the second processing unit and is formed by bed, during which, opens the second air charging system, closes first
Air charging system；
Make sewage outflow from the top of described the second processing unit biochemical by aerobic zone bed, after filtration treatment, waits inflows
Sewage be discharged by the outlet pipe of the case top, another part sewage passes through the dirt in the return pipe and water inlet pipe
Sewage diposal area is returned to after water mixing；
When needing spoil disposal, the second air charging system is closed, opens the first air charging system, flushing is scattered in first processing units and the
First and second in two processing units disperses the lightweight filler that declines, and makes the sewage diposal area in fluidized state, makes described first and second
Dispersion decline lightweight filler biomembrane through the partial exfoliation that rubs, while the first and second dispersion being made to decline the wadding body in lightweight filler gap
Activated sludge flows through sewage diposal area with sewage and is discharged by the sludge pipe；
After spoil disposal, the first air charging system is closed, sewage is continued with.
Further, the aeration intensity of first air charging system is not less than 3m3/ (m2Such as 3~10m h),3/ (m2·
H), and first and second in the first processing units and described the second processing unit to disperse the lightweight filler that declines to reach fluidisation
State.
In conclusion the invention has the following advantages:
1, this programme uses density to decline lightweight filler for 0.65 ~ 1.00 times of sewage density of the first and second dispersion, compared to tradition
The loading of method, filler increases, thus provides bigger contact area；Secondly, in actual operation, the filler of aerobic zone is filled out
Rate is filled close to 100%, and enhance aerobic zone significantly removes carbon and nitrification function；
2, the advantages of sewage water treatment method carried out using this programme is with both activated sludge and biofilm, and sludge
Concentration is high, microbial biomass is big, biofacies is abundant, and can guarantee the activity of microorganism, has same pond carbon elimination, denitrogenation, dephosphorization
High Quality Environment, be discharged it is more high-quality, stables, reliably.
3, since sludge concentration and microbial biomass are big, the volumetric loading of biochemical reactor can be greatly improved, and then reduce
The volume of device, so capital construction cost can be substantially reduced.
It 4,, can be significantly since anaerobism, anoxic, aerobic and precipitation zone are vertically arranged in same housing in structure arrangement
Occupied area is saved, land use rate is improved.
5, it is formed by suspension bed, the residence time of bubble in water can be greatly prolonged, and then improve aeration wind
The utilization rate of oxygen in amount reduces operating cost so aeration air quantity can be effectively reduced.
6, it due to bed voidage height, so the drag losses of bed are small, is not easy to plug.
7, it declines lightweight filler since the first and second dispersion is respectively adopted in the first and second processing unit of sewage diposal area, so
When backwash, need that low energy consumption, and backwash can be such that entire bed fluidizes, backwash effect is thorough.
8, due to the presence of suspension bed, water flow constantly changes direction in bed gap, inertial collision activated sludge and
Biomembrane, such hydraulics are more advantageous to the mass transfer of pollutant.
9, due to the dimensional support effect of bed in the first, second processing unit, so that active pollution index is deposited in
Face loses activity without being deposited on bottom of pond because being compacted dehydration, so sludge still can be kept even if sludge concentration is high
Activity.
10, since bed sludge concentration is high, microbial biomass is big, it can be effectively reduced the organic loading of sludge, so that entirely
The impact resistance of reactor is stronger than traditional handicraft very much.
11, since bed sludge concentration is high, microbial biomass is big, the reduction of sludge loading enables to the sludge of reactor
Yield substantially reduces, and saves the expense of subsequent specific resistance to filtration.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment 1 of the micro- light bed biochemical treatment apparatus of one kind provided by the invention；
Fig. 2 is the structural schematic diagram of the embodiment 2 of the micro- light bed biochemical treatment apparatus of one kind provided by the invention；
Fig. 3 is the structural schematic diagram of the embodiment 3 of the micro- light bed biochemical treatment apparatus of one kind provided by the invention.
Appended drawing reference:
1, first processing units；2, the second processing unit；3, sedimentation basin；10, anoxic zone；11, water-distributing device；12, the first inflation
Device；13, water inlet pipe；14, the first admission line；15, blow-down pipe；16, first disperses the lightweight filler that declines；20, aerobic zone；21,
Tubaeform isolating cylinder；211, separating screen；22, the second air charging system；23, the second admission line；26, the second dispersion, which declines, gently fills out
Material；31, tubaeform guide shell；311, cylindrical portion；312, expansion mouth；32, annular channel；33, effluent collection device；34, it is discharged
Pipe；35, return pipe；36, sludge pipe；361, spoil disposal collection device；310, reflux pump；100, shell；200, sewage diposal area.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1
As shown in Figure 1, the micro- light bed biochemical treatment apparatus of one kind that the embodiment of the present invention 1 provides includes shell 100, in shell 100
It is provided with sewage diposal area 200.
100 lower part of shell is communicated with water inlet pipe 13, and 200 lower part of sewage diposal area is equipped with the cloth being connected to water inlet pipe 13
Water installations 11, such as common water distributor.Effluent collection device 33 is provided at the top of shell 100, effluent collection device 33 is communicated with
Outlet pipe 34.In the present invention, the cross section of the shell 100 can be circle, perhaps the positive side n shape and n >=4 or rectangle.It is real
It applies in example and illustrates the present invention using the cross section of shell 100 as circle, but this is not construed as limiting the invention.
To realize different treatment effects, settable different sewage treatment unit in sewage diposal area 200.The present embodiment
In, first processing units 1 and the second processing unit 2 are equipped in sewage diposal area 200 from bottom to top.It can in first processing units 1
It is described to include at least one anoxic zone 10, or including at least one anoxic zone 10 and at least one anaerobic zone (not shown)
The second processing unit 2 includes at least one aerobic zone 20.Correspondingly, 2 bottom of the second processing unit is equipped in sewage treatment
When the second air charging system 22 for aeration, and bottom is equipped with the first inflation for flushing in the first processing units 1
Device 12 is in close state in sewage treatment.
First air charging system 12 includes the first admission line 14 being connected to 100 bottom of shell, the second air charging system 22 packet
The second admission line 23 being connected to 100 middle part side of shell is included, meanwhile, 100 bottom of shell is communicated with blow-down pipe 15.
The first processing in the present embodiment, to improve the sludge concentration and microbial biomass in device, in sewage diposal area 200
Be separately filled in unit 1 and the second processing unit 2 when sewage flows through be capable of voluntarily fluidization dispersions the first dispersion decline it is light
Filler 16 and the second dispersion decline lightweight filler 26, and the decline density of lightweight filler 16,26 of the first and second dispersion is the 0.65 of sewage density
~ 1.00 times, the decline density of lightweight filler 16,26 of the first and second dispersion may be the same or different, the top of the sewage diposal area 200
It is provided with the separating screen 211 for preventing filler to be lost.In actual moving process, the problem of due to relative density, by institute
The first, second dispersion lightweight filler 16,26 that declines is stated preferentially to suspend and fill up described the second processing unit 2 and form aerobic zone bed,
The remaining first dispersion lightweight filler 16 that declines is suspended in 1 middle and upper part of first processing units and forms anoxic zone bed.
In preferred embodiments, the first and second dispersion lightweight filler 16,26 that declines can be uniform, regular shape reality
Body, such as the shape of K-type filler or similar products in existing MBBR filler, maximum straight-line dimension is not less than 5mm, such as can be
5~300mm；Specific surface area is not less than 300m2/m3, such as can be 300~2000m2/m3。
In preferred embodiments, when fluid flows through, the dispersion for being distributed to first processing units 1 declines lightweight filler 16
Shared volume is not less than the 50% of 1 volume of first processing units, and the second dispersion declines lightweight filler 16 and the second distributing is filled out
The packing volume summation of material 26 is not higher than the 90% of 200 total measurement (volume) of sewage diposal area.
The not set sedimentation basin of the present embodiment, when lower it is suitable for each pollutant concentration of the sewage of water inlet and out aqueous suspension
Concentration operating condition of less demanding.In this structure of embodiment 1, sewage biochemical by aerobic zone bed, after filtration treatment
After flowing through separating screen 211, effluent collection device 33 can be directly entered.
Spoil disposal collection device 361 is arranged at the top of separating screen 211 in the present embodiment, and spoil disposal collection device 361 is connected with
The spoil disposal end of sludge pipe 36, sludge pipe 36 can be passed down through the second processing unit 2 and extend to outside shell 100.It is being rushed
When washing, the sludge of sewage diposal area 200 is flowed upwards out, and is entered from the top of spoil disposal collection device 361, and then passes through sludge pipe 36
It is discharged outside shell 100.
In the present embodiment, it can be made such as internal reflux or external reflux mode by aerobic using applicable reflux technique
In the anoxic zone 10 for the first processing units 1 that the mixed liquor that area 20 is handled is back to 100 bottom of shell, the carbon source in water inlet is utilized
Circulation carries out sufficient denitrification, effectively removes total nitrogen.For example, can be in the position positioned at 200 top of sewage diposal area of shell 100
The return pipe 35 being connected to water inlet pipe 13 is installed, and reflux pump 310 and control valve are set on return pipe 35.
The course of work of sewage treatment is carried out using the present apparatus are as follows: mixed liquor in sewage and return pipe 35 is from shell 100
The water inlet pipe 13 of bottom enters the water-distributing device 11, is evenly distributed on the first processing units 1 through the water-distributing device 11
Cross section on, successively flow through upwards and be suspended in first processing units 1 by the dispersion of part first lightweight filler 16 that declines and be formed by
Bed and lightweight filler 26 is declined by the second dispersion and the first dispersion of residue lightweight filler 16 that declines is suspended in the second processing unit 2 and shape
At bed, during which, open the second air charging system 22, close the first air charging system 12；Then the sewage after Aerobic Process for Treatment is worn
It crosses the mesh of separating screen 211 and is flowed out at the top of the aerobic zone 20, the sewage of inflows is waited to be received by effluent collection device 33
Be discharged after collection through outlet pipe 34, another part sewage finally flows back into the bottom of first processing units 1 through return pipe 35, using into
Carbon source in water recycles in first processing units 1 carries out sufficient denitrification, to remove total nitrogen.
When needing spoil disposal, the second air charging system 22 is closed, opens the first air charging system 12, gas washout is made to be suspended in the
First and second in one processing unit 1 and the second processing unit 2 disperses the lightweight filler 16,26 that declines, and makes the sewage diposal area 200
In fluidized state, the biomembrane for making first and second dispersion decline on lightweight filler 16,26 makes the through the partial exfoliation that rubs
One, decline lightweight filler 16, the wadding body activated sludge in 26 gaps of two dispersions with sewage enters the bottom of the sedimentation basin 3 and by institute
State the discharge of sludge pipe 36；After spoil disposal, the first air charging system 12 is closed, sewage is continued with.
In sewage disposal process, various pollutants in sewage in first processing units 1 with phegma and microorganism
It is sufficiently mixed, denitrifying bacteria therein carries out denitrification using the carbon source in sewage to remove nitrate nitrogen, and removes part and contain
Carbon pollutant.Under the premise of anaerobic zone is set in the sewage diposal area 200, the anaerobic environment in biomembrane is cooperateed with,
Phosphorus effect is released in polyP bacteria completion, and denitrifying bacteria continues with the carbon source in sewage and carries out denitrification to remove nitrate nitrogen, herein
The kjeldahl nitrogen in sewage completes ammoniation and forms ammonia nitrogen in the process, enters aerobic zone 20 with remaining carbon based pollutants, good
Aerobic Process for Treatment is carried out in oxygen area 20, nitrification nitrogen and carbon dioxide and water is converted to by aerobic bacteria, nitrate nitrogen is again with reflux
Liquid is back to the first processing units 1 and completes denitrification, so that total nitrogen is constantly removed by circulation；The polyP bacteria for releasing phosphorus exists
Phosphorus under aerobic environment in meeting excessive adsorption aerobic zone 20 can be completed by discharging rich phosphorus excess sludge to sewage total phosphorus
Removal.
Compared with traditional various activated sludge processes, firstly, the first and second dispersion that this programme is filled with high building coverage declines
Lightweight filler 16,26 is not only easy to form biomembrane abundant, Er Qie with biggish specific surface and higher voidage
Up to that can intercept in the three-dimensional gap of 75% or more voidage, precipitate, filtered a large amount of active pollution index, can make
The sludge concentration of anoxic zone reaches the 2 times or more of traditional activated sludge process, and the sludge concentration of aerobic zone reaches traditional active sludge
3 times or more of method, even so, due to the supporting role of filler, will not because aeration intensity or stirring intensity are low and deposit,
Compacting loses activity in bottom of pond, is still able to maintain very high sludge activity, substantially increases volumetric loading, pool capacity can be set
That counts is smaller, and land occupation is smaller, to save construction throwing time；Secondly as the interception of bed, precipitating, filtration, so that into
The muddy water mixed solution concentration of precipitation zone is not high, or even can be lower than traditional activated sludge process, significantly reduces post precipitation
The solid loading in region ensure that the effect of mud-water separation；Finally, due to which the interception function of bed, can greatly prolong aeration gas
The residence time ducked in drink increases the air-water contact time, therefore can greatly improve the utilization rate of oxygen in aeration process, thus
Greatly reduce aeration quantity, saves operation energy consumption.
Compared with traditional aeration biofilter technology, firstly, this programme filling first and second dispersion decline lightweight filler 16,
26 large specific surface area, up to 300m2/m3More than, voidage is high, and up to 75% or more, therefore be not easy to plug, biomembrane is richer
It is rich；Secondly, the first and second dispersion of this programme filling declines, lightweight filler 16,26 density are small, and flushing more easily reachs fluidized state,
On the one hand flushing energy consumption can be reduced, another aspect fluidized state strengthens flushing effect, it is easier to the biomembrane of aging is discharged,
It rinses thorough；Again, in structure and aspect of performance, the present apparatus is more simpler than the structure of traditional aeration biofilter, Ke Yitong
When arrangement anaerobic zone, anoxic zone and aerobic zone, the functions such as carbon elimination, denitrogenation, the dephosphorization in pond may be implemented；Finally, due to first,
Two dispersion decline lightweight filler 16,26 density be much smaller than aerating biological filter pool filler density, and packing layer be suspended state, it is right
Bottom of pond no pressure, therefore can reduce the requirement for bearing capacity to civil engineering structure, it is further reduced construction cost.
Compared with biological catalytic oxidation, firstly, the packing specific area of this programme is big, therefore biofilm biomass is bigger；
Secondly, structure is simple, reduces the cost of manufacture of reactor without designing filler fixed bracket in structure；Finally, this programme
Filler be distributed structure, and the friction cleaning under fluidized state easy to accomplish, it is easier to realize newborn, mature and aging
The update alternate run of biomembrane, stability is higher, and effect is more excellent.
Compared with MBBR technology, firstly, the media-filling rate of this programme is the 2 times or more of existing MBBR technology, reaching
Under conditions of the biomembrane of identical quantity, pool capacity can also be contracted to 1/2 hereinafter, to reduce land occupation and investment；Secondly, running
In, without worrying that filler is deposited in dead zone, without guaranteeing enough aeration intensities, filler is made to reach fluidized state, so as to
Aeration air quantity is saved, operating cost is reduced；Finally, there is also there is an a large amount of active pollution index in this programme, therefore be discharged more
Add high-quality and reliable and stable.
Compared with MBR technology, firstly, the sludge concentration of this programme and microbial biomass can achieve even more than MBR technique
In 10g/L concentration, it is seen that it is more efficient；Secondly, in operation, do not need film and clean blower, do not need suction pump, so
In terms of energy consumption, MBR can not be by comparison；Finally, there is no the worries that film dirt blocks up, needs chemical cleaning and more renew film.
Embodiment 2
As shown in Fig. 2, the device difference from Example 1 that embodiment 2 provides is, it is interior in shell 100 to be equipped with bottom end outer rim
The tubaeform isolating cylinder 21 being connected with 100 inner wall of shell, the horn mouth of tubaeform isolating cylinder 21 are described towards 100 bottom of shell
100 inner space of shell is separated into positioned at the sedimentation basin 3 of tubaeform 21 periphery of isolating cylinder and positioned at loudspeaker by tubaeform isolating cylinder 21
21 inside of shape isolating cylinder and the sewage diposal area 200 for extending to 100 bottom of shell.It in this configuration, can be by effluent collection
Slot 33 is located inside or outside sedimentation basin 3, and sludge pipe 36 is connected in the bottom of sedimentation basin 3, and separating screen 211 may be provided at loudspeaker
21 inner top of shape isolating cylinder.This programme is discharged relatively reliable stabilization by the way that independent sedimentation basin 3 is arranged.
In the present embodiment, in shell 100 positioned at tubaeform isolating cylinder 21 periphery be equipped with for guide from it is tubaeform every
From the guiding device that sewage after the processing flowed out at the top of cylinder 21 flows to 3 bottom of sedimentation basin.
Guiding device may include the tubaeform guide shell 31 that a coaxial line is set in tubaeform 21 top of isolating cylinder, loudspeaker
The horn mouth of shape guide shell 31 is equally towards 100 bottom of shell, so that tubaeform 31 inner wall of guide shell and the loudspeaker
An annular channel 32 is formed between 21 outer wall of shape isolating cylinder.
In the present invention, the specific structure of tubaeform isolating cylinder 21 and tubaeform guide shell 31 is not particularly limited, it can root
According to actual needs, its structure is set.The arbitrary cross section of tubaeform isolating cylinder 21 and tubaeform guide shell 31 can be respectively to justify
Shape, the perhaps positive side n shape and n >=4 or rectangle.With the cross of tubaeform isolating cylinder 21 and tubaeform guide shell 31 in embodiment
Section is circle to illustrate, but this is not construed as limiting the invention.
In addition, to guarantee that tubaeform 31 top of guide shell is higher than the top of the tubaeform isolating cylinder 21 in the present invention,
Can with flushed at the top of shell 100, to prevent 3 top of sewage autoprecipitation pond from being directly entered sedimentation basin 3；And, it is ensured that it is described
Tubaeform 31 bottom end of guide shell be higher than sedimentation basin 3 bottom, it is preferable that the tubaeform guide shell 31 include cylindrical portion 311 and
The junction of coupled expansion mouth 312, cylindrical portion 311 and expansion mouth 312 is approximately corresponding to suspended sludge layer institute in sedimentation basin 3
At position, to reserve a stable sludge memory block in the bottom of sedimentation basin 3.
The course of work of sewage treatment is carried out using the present apparatus are as follows: mixed liquor in sewage and return pipe 35 is from shell 100
The water inlet pipe 13 of bottom enters the water-distributing device 11, is evenly distributed on the first processing units 1 through the water-distributing device 11
Cross section on, successively flow through upwards and be suspended in part first processing units 1 by the first dispersion lightweight filler 16 that declines and be formed by
Bed and lightweight filler 26 is declined by the second dispersion and the dispersion lightweight filler 16 that declines of part first is suspended in 2 shapes of the second processing unit
At bed, the net of the separating screen 211 at 21 top of tubaeform isolating cylinder is then flowed out and passed through at the top of the aerobic zone 20
Hole, and by annular channel 32 into the bottom of the sedimentation basin 3, after precipitation, clear water is by the water outlet at the top of the sedimentation basin 3
It after collection device 33 is collected, is discharged by the outlet pipe 34, precipitating sludge is most of via the return pipe 35 and water inlet pipe 13
Sewage mixing after come back to 1 bottom of first processing units and participate in biochemical reaction, only a small amount of excess sludge is being arranged
Mud backwash stage is through 36 discharger of sludge pipe.When needing spoil disposal, the mode of reference implementation example 1 is carried out.
Embodiment 3
As shown in figure 3, embodiment 3 and embodiment 2 the difference is that, shell 100 corresponds to 3 bottom of sedimentation basin to top
The cross section geometry divided is greater than its cross section geometry for corresponding to 3 bottom of sedimentation basin.Because shell 100 is transversal in the present embodiment
Face is circle, the internal diameter of the cross section geometry, that is, shell 100.(as shown in Figure 3).
In fact, those skilled in the art can make various modifications according to the design of the present embodiment, so that shell 100
Interior isolating cylinder 21 tubaeform without leave and 100 junction of shell or close to the junction upper and lower position at be increased up.
Using the above structure, by increasing the desilting area of sedimentation basin 3, so as to reduce the surface loading of sedimentation basin 3,
And then increase the sludge settling time, improve mud-water separation effect.
In embodiments of the present invention, in the region of muddy water precipitating, such as the region on 211 top of separating screen in embodiment 1,
Or in the sedimentation basin 3 of embodiment 2,3, it can also can promote the device of mud-water separation using other, as inclined plate or inclined tube are heavy
Shallow lake device, this is all within the scope of the claims in the present invention are claimed.
Embodiments above is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in scope of the presently claimed invention.
Claims (10)
1. a kind of micro- light bed biochemical treatment apparatus, including shell (100), shell (100) lower part are communicated with water inlet pipe (13),
Top is communicated with outlet pipe (34)；It is characterized in that,
Sewage diposal area (200) are equipped with inside the shell (100), the top of shell (100) is communicated with sludge pipe (36)；
First processing units (1) and the second processing unit (2) are equipped in the sewage diposal area (200) from bottom to top, at first
Reason unit (1) includes at least one anoxic zone (10) or including at least one anoxic zone (10) and at least one anaerobic zone, institute
Stating the second processing unit (2) includes at least one aerobic zone (20)；
It is identical that density is respectively arranged in the first processing units (1) of the sewage diposal area (200), the second processing unit (2)
Or different first dispersions decline lightweight filler (16) and the second dispersion declines lightweight filler (26), first and second dispersion declines gently
The density of filler (16,26) is 0.65 ~ 1.00 times of sewage density；It is provided with and is used at the top of the sewage diposal area (200)
Separate the separating screen (211) of filler；
The interior bottom of the first processing units (1) is equipped with the first air charging system (12) for flushing, described the second processing unit
(2) bottom is equipped in sewage treatment for the second air charging system (22) of aeration.
2. the micro- light bed biochemical treatment apparatus of one kind according to claim 1, which is characterized in that the shell (100) is appointed
Meaning cross section is circle, perhaps the positive side n shape and n >=4 or rectangle.
3. the micro- light bed biochemical treatment apparatus of one kind according to claim 1, which is characterized in that first and second distributing
Respectively uniform, regular shape the entity of micro- lightweight filler (16,26), maximum straight-line dimension are not less than 5mm, and specific surface area is not less than
300m2/m3；And when sewage flows through, be distributed to first processing units (1) first and second disperses lightweight filler (the 16,26) institute that declines
The volume is not less than the first processing units (1) volume 50%, and first and second dispersion is accounted for decline the fillings of lightweight filler (16,26)
Volume is not higher than the 90% of the sewage diposal area (200) volume.
4. the micro- light bed biochemical treatment apparatus of one kind according to claim 1, which is characterized in that set in the shell (100)
Have and shell (100) inside is separated to form the sewage diposal area (200) and is located at sewage diposal area (200) top peripheral
The tubaeform isolating cylinder (21) of sedimentation basin (3), tubaeform isolating cylinder (21) bottom end outer rim are connected with shell (100) inner wall, loudspeaker
The horn mouth of shape isolating cylinder (21) is towards shell (100) bottom；Separating screen (211) be located at the top of tubaeform isolating cylinder (21) and
Its edge is connected with tubaeform isolating cylinder (21) inner wall.
5. a kind of mixed bed biochemical treatment apparatus according to claim 4, which is characterized in that the interior position of the shell (100)
It is equipped in the periphery of tubaeform isolating cylinder (21) for guiding from sewage stream after the processing that tubaeform isolating cylinder (21) top is flowed out
To the guiding device of sedimentation basin (3) bottom.
6. the micro- light bed biochemical treatment apparatus of one kind according to claim 5, which is characterized in that guiding device includes coaxial line
It is set in the tubaeform guide shell (31) on tubaeform isolating cylinder (21) top；The horn mouth direction of the tubaeform guide shell (31)
Shell (100) bottom, tubaeform guide shell (31) top are higher than the top of the tubaeform isolating cylinder (21), the loudspeaker
Shape guide shell (31) bottom end is higher than the bottom of sedimentation basin (3)；Tubaeform guide shell (31) inner wall tubaeform is isolated with described
Annular channel (32) are formed between cylinder (21) outer wall；Times of the tubaeform isolating cylinder (21) and the tubaeform guide shell (31)
Meaning cross section is respectively circle, perhaps the positive side n shape and n >=4 or rectangle.
7. the micro- light bed biochemical treatment apparatus of one kind according to claim 5, which is characterized in that sedimentation basin (3) top
Equipped with effluent collection slot (33), the effluent collection slot (33) is connected to outlet pipe (34)；Sludge pipe (36) is connected to sedimentation basin
(3) bottom；The bottom of sedimentation basin (3) is also communicated with the return pipe (35) being connected to water inlet pipe (13).
8. the micro- light bed biochemical treatment apparatus of one kind according to claim 4, which is characterized in that the shell (100) is corresponding
It is greater than its section for corresponding to the sedimentation basin (3) bottom in the cross section geometry of the sedimentation basin (3) bottom above section
Geometric dimension.
9. using the sewage water treatment method of any micro- light bed biochemical treatment apparatus of one kind of claim 1-8, including it is following
Step:
Sewage is set to enter sewage diposal area (200) from the first processing units (1) bottom by water inlet pipe (13), upwards successively
It flows through and is scattered in first processing units (1) by the dispersion of part first lightweight filler (16) that declines and is formed by bed and by second
Dispersion declines lightweight filler (26) and residue first disperses to decline, and lightweight filler (16) is scattered in the second processing unit (2) and is formed by bed
During which layer is opened the second air charging system (22), close the first air charging system (12)；
It flows out sewage biochemical by aerobic zone bed, after filtration treatment from the top of described the second processing unit (2), waits water inlet
The sewage of amount is discharged by outlet pipe (34) described at the top of shell (100), and another part sewage passes through return pipe (35) and water inlet pipe
(13) sewage diposal area (200) are returned after the sewage mixing in；
It when needing spoil disposal, closes the second air charging system (22), opens the first air charging system (12), flushing is suspended in the first processing
The first and second dispersion in unit (1) and the second processing unit (2) declines lightweight filler (16,26), makes the sewage diposal area
It (200) is in fluidized state, the biomembrane for making first and second dispersion decline on lightweight filler (16,26) is through the partial exfoliation that rubs, together
When so that the first and second dispersion is declined in lightweight filler (16,26) gap wadding body activated sludge flow through sewage diposal area (200) with sewage
And it is discharged by the sludge pipe (36)；
After spoil disposal, closes the first air charging system (12), continue with sewage.
10. sewage water treatment method according to claim 9, which is characterized in that the aeration of first air charging system (11)
Intensity is not less than 3m3/ (m2H), and make in the first processing units (1) and described the second processing unit (2) first,
The two dispersion lightweight fillers (16,26) that decline reach fluidized state.
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| CN112573658A (en) * | 2020-12-08 | 2021-03-30 | 西藏大学 | Plateau sewage treatment denitrogenation spiral-flow type biochemical reaction device and equipment thereof |
| CN112939353A (en) * | 2021-02-04 | 2021-06-11 | 云南沃润特环境工程有限公司 | Sewage biological purification tank not easy to block |
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