CN110156161A - The micro- heavy bed biochemical treatment apparatus of one kind and sewage water treatment method - Google Patents
The micro- heavy bed biochemical treatment apparatus of one kind and sewage water treatment method Download PDFInfo
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- CN110156161A CN110156161A CN201910482995.2A CN201910482995A CN110156161A CN 110156161 A CN110156161 A CN 110156161A CN 201910482995 A CN201910482995 A CN 201910482995A CN 110156161 A CN110156161 A CN 110156161A
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- 239000010865 sewage Substances 0.000 title claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910001868 water Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 76
- 239000010802 sludge Substances 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000006185 dispersion Substances 0.000 claims abstract description 47
- 230000007423 decrease Effects 0.000 claims abstract description 20
- 238000004062 sedimentation Methods 0.000 claims description 31
- 238000005273 aeration Methods 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 14
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000004299 exfoliation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 14
- 239000002028 Biomass Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 230000000813 microbial effect Effects 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 9
- 238000011068 loading method Methods 0.000 description 9
- 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
- 238000010992 reflux Methods 0.000 description 6
- 238000005265 energy consumption 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
- 230000001376 precipitating effect Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 230000006870 function Effects 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
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 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
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000001556 precipitation 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
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 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
- 238000009825 accumulation Methods 0.000 description 1
- 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
- 230000015572 biosynthetic process 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
- 238000005243 fluidization Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement 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
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 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
- 238000012360 testing method Methods 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- heavy 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), the first and second processing unit (1 in sewage diposal area (200), 2) it is respectively arranged with the first and second identical or different dispersion of density in decline and refill material (16,26), sewage diposal area (200) internal upper part is provided with separating screen (211)；First and second processing unit (1,2) insole portion is not equipped with the first and second air charging system (12,22).The device is with simple and compact for structure, treatment effeciency is high, volume is small, take up an area less, stable effluent quality is reliable, low power consumption and other advantages.
Description
Technical field
The present invention relates to technical field of sewage, more specifically, it relates to a kind of micro- heavy 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, the sludge concentration and microbial biomass of the sludge concentration of anoxic zone and microbial biomass or anoxic period can only be less than or equal to
It is dense to cannot achieve individually raising anoxic zone or the sludge of anoxic period for the sludge concentration and microbial biomass of aerobic zone or aerobic period
Degree and microbial biomass, can only improve jointly, the sludge of higher aerobic zone or aerobic period are dense together with aerobic zone or aerobic period
Degree can make subsequent mud-water separation link be affected, and lead to a series of problems and be difficult to continually and steadily run, so that anoxic zone
Or the volumetric loading of anoxic period is restricted, and is unfavorable for further increasing and excavating the denitrification function of anoxic zone or anoxic period
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- heavy 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 anoxic 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- heavy 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
The first same or different dispersion, which declines to refill to expect to decline with the second dispersion, refills material, and first and second disperses to decline to refill the density of material
It is 1.00 ~ 1.65 times of sewage density；The sewage diposal area internal upper part is provided with the separating screen for separating filler；It is described
Bottom is equipped with the first air charging system for flushing in first processing units, and the second processing unit bottom is equipped at sewage
For the second air charging system of aeration when reason.
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, which declines, refills the entity of material respectively regular shape, and maximum straight-line dimension is not 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。
Further, when fluid flows through, the first dispersion for being stacked on first processing units, which declines, refills the shared volume of material not
The packing volume for refilling material is declined not higher than sewage treatment lower than the 50% of the first processing units volume, and first and second dispersion
The 90% of area's total measurement (volume).
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, 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 first point
It dissipates to decline and refills material and the dispersion of part second declines to refill material heap and be laminated in first processing units and is formed by bed and by remaining
Second dispersion of remaininging, which declines to refill material heap and be laminated on the second processing unit, 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 case top, another part sewage is mixed by the sewage in the return pipe and water inlet pipe
Sewage diposal area is returned to after conjunction；
When needing spoil disposal, the second air charging system is closed, opens the first air charging system, flushing is stacked in first processing units and the
The first and second dispersion in two processing units, which declines, refills material, makes the sewage diposal area in fluidized state, makes described first and second
Dispersion, which declines, refills the biomembrane of material through the partial exfoliation that rubs, while the first and second dispersion being made to decline the wadding body refilled in material 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 4m3/ (m2H), for example, 5 ~ 10m3/
(m2H), and first and second in the first processing units and described the second processing unit is made to disperse to decline to refill material and reach
Fluidized state.
In conclusion the invention has the following advantages:
1, this programme uses density to decline for 1.00 ~ 1.65 times of sewage density of the first and second dispersion and refills material, compared to tradition
The loading of method, filler increases, thus provides bigger contact area；Secondly, in actual operation, anoxic zone and anaerobic zone
Media-filling rate close to 100%, enhance the denitrogenation dephosphorizing function of anoxic zone and anaerobic zone significantly；
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 accumulation 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, material is refilled since the first and second processing unit of sewage diposal area is respectively adopted the first and second dispersion and declines, so
When backwash, need that low energy consumption, and backwash can be such that entire bed fluidizes, backwash effect is thorough.
8, due to accumulating the presence of 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, or even the phenomenon that sludge itself hydrolysis provides carbon source occurs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment 1 of the micro- heavy 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- heavy 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- heavy 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, the first dispersion, which declines, refills material；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, refills
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- heavy 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 lower part is equipped with and is connected to water inlet pipe 13 in sewage diposal area 200
Water-distributing device 11, such as common water distributor.Effluent collection device 33 is provided at the top of shell 100, effluent collection device 33 is connected to
There is 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.
The present invention is illustrated as circle using the cross section of shell 100 in embodiment, 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
It is separately filled in unit 1 and the second processing unit 2 when fluid flows through and to be capable of the first dispersion of voluntarily fluidization dispersions and decline weight
Filler 16 and the second dispersion decline and refill material 26, and it is the 1.00 of sewage density that the first and second dispersion, which declines and refills the density of material 16,26,
~ 1.65 times, the first and second dispersion, which declines, to be refilled the density of material 16,26 and 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
It states the first, second dispersion and declines to refill material 16,26 and preferentially sink and fill up the first processing units 1 and form anoxic zone bed,
Remaining second dispersion, which declines to refill, expects that 26 sink in 2 middle and lower part of the second processing unit formation aerobic zone bed.
In preferred embodiments, the first and second dispersion, which declines, refills material 16,26 and 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, which declines, refills material 16
Shared volume be not less than 1 volume of first processing units 50%, and first dispersion decline refill material 16 and second distributing fill out
The packing volume summation of material 26 is not higher than the 90% of 2 total measurement (volume) of first processing units 1 and described the second processing unit.
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 being rinsed can be made to enter from the top of spoil disposal collection device 361, be discharged outside shell 100 by sludge pipe 36.
In the present embodiment, made such as internal reflux or external reflux mode by aerobic zone 20 using applicable reflux technique
The mixed liquor of processing is back in the anoxic zone 10 of the first processing units 1 of 100 bottom of shell, utilizes the carbon sources recycling in water inlet
Sufficient denitrification is carried out, total nitrogen is effectively removed.For example, can be set 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 set, 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 to be declined by the first dispersion upwards and refill material 16 and the dispersion of part second declines and refills material and 26 be stacked in
First processing units 1 and the bed and the second dispersion of residue formed, which decline, to be refilled material and 26 is stacked in first processing units 1 and second
Processing unit 2 and formed bed, during which, open the second air charging system 22, close the first air charging system 12；Then through aerobic place
Sewage after reason passes through the mesh of separating screen 211 and flows out at the top of the aerobic zone 20, waits the sewage of inflows by being discharged
Collection device 33 is discharged after collecting through outlet pipe 34, and another part sewage finally flows back into first processing units 1 through return pipe 35
Bottom, recycled in first processing units 1 using the carbon source in water inlet and carry 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 stacked in the
The first and second dispersion in one processing unit 1 and the second processing unit 2, which declines, refills material 16,26, makes the sewage diposal area 200
In fluidized state, so that first and second dispersion is declined and refill biomembrane on material 16,26 through the partial exfoliation that rubs, while making the
One, two dispersions, which decline, refills material 16, the wadding body activated sludge in 26 gaps and 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
Excessive phosphorus can be adsorbed in aerobic zone 20 under aerobic environment, 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
Material 16,26 is refilled, with biggish specific surface and higher voidage, is not only easy to form biomembrane abundant, Er Qie
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 3 times of traditional activated sludge process or more, and the sludge concentration of aerobic zone reaches traditional active sludge
The 2 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 refill material 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, which declines to refill, expects that density is small, 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 be discharged, rinse thorough
Bottom；Again, in structure and aspect of performance, the present apparatus is more simpler than the structure of traditional aeration biofilter, can be simutaneously arranged
The functions such as carbon elimination, denitrogenation, the dephosphorization in pond may be implemented in anaerobic zone, anoxic zone and aerobic zone；Finally, due to the first and second dispersion
It declines and refills the density of material 16,26 and be much smaller than the density of aerating biological filter pool filler, alleviate the pressure to bottom of pond, therefore can be with
Reduce the requirement for bearing capacity to civil engineering structure, 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.In this scheme, sludge pipe connection exists
The bottom of sedimentation basin 3.This programme is discharged relatively reliable stabilization by the way that independent sedimentation basin 3 is arranged.
In this configuration, effluent collection slot 33 can be located inside or outside sedimentation basin 3, separating screen 211 is settable
In the inside of tubaeform isolating cylinder 21, such as it may be provided in the middle part or top of tubaeform isolating cylinder 21.
In preferred embodiments, in the present embodiment, the periphery in shell 100 positioned at tubaeform isolating cylinder 21 is equipped with
For guiding sewage after the processing flowed out from the top of tubaeform isolating cylinder 21 to flow to the guiding device of 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
Coupled expansion mouth 312, in practice, the junction of cylindrical portion 311 and expansion mouth 312 is approximately corresponding to suspend in sedimentation basin 3
Sludge blanket 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 to be declined by the first dispersion upwards and refill material 16 and the dispersion of part second declines and refills material and 26 be stacked in
First processing units 1 are formed by bed and the second dispersion of residue declines to refill and expects that 26 are stacked in first processing units 1 and second
Processing unit 2 is formed by bed, during which, opens the second air charging system 22, closes the first air charging system 12；Then treated
Sewage flows out at the top of the aerobic zone 20 and is placed through the net of the separating screen 211 at tubaeform 21 middle part of isolating cylinder or top
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 carries 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 (as shown in Figure 3) of the cross section geometry, that is, shell 100.
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.
Specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (10)
1. a kind of micro- heavy 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 and refill material (16) and the second dispersion declines and refills material (26), described first and second disperses to decline again
The density of filler (16,26) is 1.00 ~ 1.65 times of sewage density；The internal upper part setting of the sewage diposal area (200) is useful
In the separating screen (211) of separation 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- heavy 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- heavy bed biochemical treatment apparatus of one kind according to claim 1, which is characterized in that first and second distributing
Micro- to refill material (16,26) respectively uniform, regular shape entity, maximum straight-line dimension is not less than 5mm, and specific surface area is not less than
300m2/m3。
4. the micro- heavy bed biochemical treatment apparatus of one kind according to claim 1, which is characterized in that when fluid flows through, dispersion
Disperse to decline to the first of first processing units (1) and refills volume shared by material (16) not less than the first processing units (1) appearance
Long-pending 50%, and the first and second dispersion declines the packing volume for refilling material (16,26) not higher than the sewage diposal area (200) total appearance
Long-pending 90%.
5. the micro- heavy 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) is located in tubaeform isolating cylinder (21) and it
Edge is connected with tubaeform isolating cylinder (21) inner wall.
6. the micro- heavy bed biochemical treatment apparatus of one kind according to claim 5, which is characterized in that on tubaeform isolating cylinder (21)
Portion's coaxial line is arranged with tubaeform guide shell (31), the horn mouth of the tubaeform guide shell (31) towards shell (100) bottom,
Tubaeform guide shell (31) top is higher than the top of the tubaeform isolating cylinder (21), tubaeform guide shell (31) bottom
End is higher than the bottom of sedimentation basin (3)；Between tubaeform guide shell (31) inner wall and the tubaeform isolating cylinder (21) outer wall
It is formed annular channel (32)；The arbitrary cross section of the tubaeform isolating cylinder (21) and the tubaeform guide shell (31) is respectively
Circle, the perhaps positive side n shape and n >=4 or rectangle.
7. the micro- heavy 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-distributing device (11).
8. the micro- heavy bed biochemical treatment apparatus of one kind according to claim 5, 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- heavy 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 to be declined to refill material (16) and part second and disperse to decline by the first dispersion and refills material (26) and be stacked in first processing units (1)
In be formed by bed and decline to refill material (26) and be stacked in the second processing unit (2) by the second dispersion of residue and be 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 by the top of shell (100) the outlet pipe (34) be discharged, another part sewage by the return pipe (35) with
Sewage diposal area (200) are returned after sewage mixing in water inlet pipe (13)；
It when needing spoil disposal, closes the second air charging system (22), opens the first air charging system (12), flushing is stacked in the first processing
The first and second dispersion in unit (1) and the second processing unit (2), which declines, refills material (16,26), makes the sewage diposal area
(200) it is in fluidized state, makes described first and second to disperse the biomembrane to decline refill on material (16,26) through the partial exfoliation that rubs, together
When so that the first and second dispersion wadding body activated sludge refilled in material (16,26) gap that declines is flowed 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 (12)
Intensity is not less than 4m3/ (m2H), and make in the first processing units (1) and described the second processing unit (2) first,
Two dispersions, which decline, to be refilled material (16,26) and reaches fluidized state.
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|---|---|---|---|---|
| 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 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0667319A1 (en) * | 1994-02-07 | 1995-08-16 | Hahnewald GmbH | Process and reactor for the microbiological treatment of water with a high oxygen demand |
| KR20050119854A (en) * | 2004-06-17 | 2005-12-22 | 주식회사 필텍코리아 | Multi media upflow filtering system for nitrification, denitrification and suspended solids removal |
| CN101774687A (en) * | 2010-03-19 | 2010-07-14 | 哈尔滨工业大学 | Method for treating water of polluted water source by using double-stage aeration bio-filter |
| CN204625424U (en) * | 2015-03-23 | 2015-09-09 | 金翼 | A kind of biochemical reactor |
| CN105016583A (en) * | 2015-07-23 | 2015-11-04 | 李华 | Tower type integration sewage treatment device used for sewage treatment |
| CN105585119A (en) * | 2014-10-22 | 2016-05-18 | 中国石化工程建设有限公司 | A nitrification-denitrification two-phase expanded-bed reactor and a sewage treating process |
| CN205676314U (en) * | 2016-04-15 | 2016-11-09 | 济南大学 | A kind of defecator of nylon leaching net combined double-layer filtrate |
| CN106517519A (en) * | 2016-12-06 | 2017-03-22 | 中国科学院生态环境研究中心 | Aerobic-anoxic integrated moving bed bio-membrane reactor and sewage treatment method thereof |
| CN108928916A (en) * | 2018-08-10 | 2018-12-04 | 苏州湛清环保科技有限公司 | The reactor of denitrification granular sludge |
| CN210261288U (en) * | 2019-06-04 | 2020-04-07 | 北京博汇特环保科技股份有限公司 | Micro-heavy bed biochemical treatment device |
-
2019
- 2019-06-04 CN CN201910482995.2A patent/CN110156161A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0667319A1 (en) * | 1994-02-07 | 1995-08-16 | Hahnewald GmbH | Process and reactor for the microbiological treatment of water with a high oxygen demand |
| KR20050119854A (en) * | 2004-06-17 | 2005-12-22 | 주식회사 필텍코리아 | Multi media upflow filtering system for nitrification, denitrification and suspended solids removal |
| CN101774687A (en) * | 2010-03-19 | 2010-07-14 | 哈尔滨工业大学 | Method for treating water of polluted water source by using double-stage aeration bio-filter |
| CN105585119A (en) * | 2014-10-22 | 2016-05-18 | 中国石化工程建设有限公司 | A nitrification-denitrification two-phase expanded-bed reactor and a sewage treating process |
| CN204625424U (en) * | 2015-03-23 | 2015-09-09 | 金翼 | A kind of biochemical reactor |
| CN105016583A (en) * | 2015-07-23 | 2015-11-04 | 李华 | Tower type integration sewage treatment device used for sewage treatment |
| CN205676314U (en) * | 2016-04-15 | 2016-11-09 | 济南大学 | A kind of defecator of nylon leaching net combined double-layer filtrate |
| CN106517519A (en) * | 2016-12-06 | 2017-03-22 | 中国科学院生态环境研究中心 | Aerobic-anoxic integrated moving bed bio-membrane reactor and sewage treatment method thereof |
| CN108928916A (en) * | 2018-08-10 | 2018-12-04 | 苏州湛清环保科技有限公司 | The reactor of denitrification granular sludge |
| CN210261288U (en) * | 2019-06-04 | 2020-04-07 | 北京博汇特环保科技股份有限公司 | Micro-heavy bed biochemical treatment device |
Non-Patent Citations (3)
| Title |
|---|
| 吕炳南等: "《污水好氧处理新工艺》", 哈尔滨：哈尔滨工业大学出版社, pages: 3 - 4 * |
| 汪波;董滨;周增炎;: "一体化活性污泥新工艺固液分离效果实验研究", 山西建筑, no. 25 * |
| 王炜亮;: "新型陶瓷填料用于曝气生物滤池可行性试验研究", 土木建筑与环境工程, no. 03 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Application publication date: 20190823 |