CN106045015B - A kind of multi-level tubular eddy flow oxygenation biological filter sewage processing system and processing method - Google Patents

A kind of multi-level tubular eddy flow oxygenation biological filter sewage processing system and processing method Download PDF

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CN106045015B
CN106045015B CN201610596482.0A CN201610596482A CN106045015B CN 106045015 B CN106045015 B CN 106045015B CN 201610596482 A CN201610596482 A CN 201610596482A CN 106045015 B CN106045015 B CN 106045015B
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eddy flow
filter
sewage
biofilter
oxygenation
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CN106045015A (en
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吴军
朱俊伟
韩诚
肖升
杨智力
李蓉蓉
张清兰
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Nanjing Keruo Environmental Technology Co Ltd
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Nanjing Keruo Environmental Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/10Packings; Fillings; Grids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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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 multi-level tubular eddy flow oxygenation biological filter sewage processing system and processing methods, belong to water treatment field.Mainly it is made of continuous filter, eddy flow oxygenation pipe, biofilter and vertical sedimentation tank;Bagged granules filtrate is wherein loaded in continuous filter, and the suspended matter in effective decontaminated water is percolated by anaerobism;Eddy flow is oxygenated pipe and is made of changeover portion, oxygenation section and water distribution section, carries out eddy flow oxygenation to sewage;Granular filler is loaded in biofilter, is degraded under the conditions of aerobic and simultaneous oxygen using filler attached microbial, is removed the pollutants such as carbon, nitrogen, phosphorus;Vertical sedimentation tank realizes chemical dephosphorization as needed;This method realizes unpowered oxygenation, degradation of contaminant, solves the problems, such as sewage treatment facility construction and long-acting operation under the conditions of mountain topography, and construction cost is low, operating cost is extremely low, management service is simple.

Description

A kind of multi-level tubular eddy flow oxygenation biological filter sewage processing system and processing method
Technical field
The present invention relates to water treatment fields, are oxygenated biofilter sewage more specifically to a kind of multi-level tubular eddy flow Processing system and processing method.
Background technique
Mountain resorts and beach, lake, rivers and creeks, solution cavity etc. are using natural landscape as the other types scenery travelling of matrix Ground is different, there is unique features of Ecological Environment and Features of Water Environment.Due to most of mountainous region big rise and falls, water-holding capacity is low, Water erosion, wind erosion even unfreezing is strong exposed bedrock or soil layer it is shallow, plant growth is slow, thus the ecosystem from My regulating power is very low.Under natural force and artificial interference, easily change, any excessive and unreasonable exploitation benefit With can all landscape be made to be destroyed, the living spaces of animals and plants is reduced, and so as to cause the decline of mountain ecosystems, or even is collapsed It bursts.In each element of mountain resorts ecological environment (big gas and water, soil, animals and plants, landforms etc.), water body is most fragile Environmental factor, the decline of a tourist site environmental quality often show the decline of water quality first, to the bad impact of tourist It is most deep.And the more difficult reverse of the deterioration of water environment, the cost of reverse are often also very big.The reasonable benefit of mountain resorts water resource With with protection, can the tourist industry that be directly related to the ground sustainable development.
The water pollution of mountain resorts is mainly by reception facility of staying, the food and drink reception discharge such as facility and public lavatory Sewage caused by, substantially sanitary sewage.In addition, the uncivil behavior such as the behavior in littering to water of tourist, And the random stacking of rubbish and landfill etc. also result in water pollution in scenic spot.
Due to increasingly sharpening with competition, modern tourist trade is no longer low investment, high production, quick industry, and It is the industry of high investment, high risk.Especially for backward mountain area, promoting a tourist business needs improvement inside and outside traffic, electricity The investment of a large amount of infrastructure early period such as letter.It and generally can only be to invite outside investment in terms of the construction at scenic spot, it is also not possible to a step In place, often increasing with tourist, every facility slowly increase, are perfect.It will be on this public welfare project of environmental protection It is larger disposably to put into more financial difficulty.So needing to develop economically feasible sewage water treatment method as far as possible.In addition, Mountain resorts hypsography is big, surface state is complicated, and especially in engineering worksite regulation flat field, big dig fills out greatly phenomenon frequency It is numerous, cause sewage treatment facility construction difficult.
Since the usable area that sewage treatment facility is built on mountain is smaller, most processing systems use combination shape Formula.In addition, processing system is frequently with unpowered since sewage disposal device electricity consumption and maintenance of equipment have certain difficulty Or the technique of microkinetic, such as artificial swamp, stabilization pond.Work is combined in a kind of sewage treatment for mountain beauty spots that Tony Gunawan proposes Skill is anaerobic biofilter+drop formula drowned flow artificial wet land+stabilization pond, has operation and maintenance simple, sets without Treatment of Sludge It applies, is not necessarily to aerator, capital construction and operating cost are cheap, and front end series connection anaerobic biofilter can resist the impact etc. of water quality and quantity Advantage.But since there is also some shortcomingss for current artificial swamp itself, such as lacks the empirical parameter and specification of design, hold Easily obstruction needs periodically harvesting and more new plant etc..And artificial swamp and stabilization pond technique, which exist, to be taken up a large area not Foot, this may become technique in mountain area and use apparent restrictive condition.
Chinese patent application 201610291208.2, discloses a kind of domestic sewage in rural areas at publication date on June 22nd, 2016 Unpowered oxygenation purifies complex media wet land system, including sequentially connected grid collecting-tank, adjusting primary sedimentation tank, anaerobic pond, water Acidification pool, contact-oxidation pool, complex media wetland are solved, flase floor, the anaerobic pond, hydrolysis acid are equipped in the grid collecting-tank Biologic packing material is equipped in change pond, contact-oxidation pool, the anaerobic pond is equipped with sealing cover, the hydrolysis acidification pool, contact oxygen Change pond and be equipped with unpowered oxygenate apparatus, the unpowered oxygenate apparatus includes drop oxygenation seat, horizontal on the drop oxygenation seat To being placed with multiple through-holes being uniformly arranged, the drop oxygenation seat be arranged in the hydrolysis acidification pool, contact-oxidation pool into It water end (W.E.) and is connected to respectively with anaerobic pond, hydrolysis acidification pool.The invention low manufacture cost, non-power consumption, without reagent consumption, Under conditions of not needing power promotion, power operating cost is zero, greatly reduces the expense of sewage treatment.But the invention does not have It is constituted according to surface relief structures, builds difficulty in mountainous region, and activated sludge process maintenance management is complicated.
Summary of the invention
1. technical problems to be solved
For the construction of mountainous region sewage treatment facility usable area is smaller, maintenance difficult problem, take up a large area, The deficiencies of maintenance management is more complex, the present invention provides a kind of multi-level tubular eddy flow oxygenation biological filter sewage processing system and places Reason method.It is oxygenated pipe, biofilter and vertical sedimentation tank using slope terrain setting Multi-stage spiral, oxygenation that realization is unpowered, Degradation of contaminant, and can chemical dephosphorization as needed, solve sewage treatment facility construction and long-acting fortune under the conditions of mountain topography Capable problem, and construction cost is low, operating cost is extremely low, and management service is simple.
2. technical solution
The purpose of the present invention is achieved through the following technical solutions.
A kind of multi-level tubular eddy flow oxygenation biological filter sewage processing system, including continuous filter, eddy flow oxygenation pipe, biological filter Pond and vertical sedimentation tank, the continuous filter, which is set to, to be handled at sewage, and continuous filter is located at whole system highest point, continuous filter By along the down-set eddy flow oxygenation pipe of the gradient and the biofilter of the first order of lower section and the vertical sedimentation tank phase of the first order Connection, the biofilter of the first order and the vertical sedimentation tank of the first order pass through the eddy flow oxygenation along the down-set first order of the gradient Pipe is connected with the vertical sedimentation tank of the biofilter of the second level and the second level, by several grades of eddy flow oxygenation pipes, biofilters With sewage treatment is completed after vertical sedimentation tank.
Further, eddy flow oxygenation pipe is divided into changeover portion, oxygenation section and water distribution section, and eddy flow is oxygenated pipe along the gradient Setting, top are changeover portion, and middle part is oxygenation section, and bottom is water distribution section, and changeover portion is provided perpendicular to the outlet in the earth's core direction Mouthful, water distribution section is provided perpendicular to the air inlet in the earth's core direction, and oxygenation intersegmental part is provided with swirl-flow devices.
Further, the swirl-flow devices are Shaftless spiral blade, and outer diameter and the eddy flow of blade are oxygenated bore phase It adapts to.
Further, continuous filter filter material layer is provided in the continuous filter, sewage passes through diafiltration from continuous filter side It is flowed out after the filter material layer of pond from the other side.
Further, the continuous filter filter material layer is several bagged granules filtrates superposition composition, at low cost, filtering effect Fruit is good.
Further, the biofilter and vertical sedimentation tank are the filtering ponds separated by a partition, and eddy flow fills Oxygen pipe is connected to biofilter bottom, and treated for biofilter sewage enters vertical sedimentation tank bottom by upper pipe, is sunk It is flowed out behind shallow lake by vertical sedimentation tank top.
Further, the biofilter bottom is provided with biofilter filter plate, and middle part is biofilter packing layer, Sewage passes sequentially through biofilter filter plate and bio-filter stuffing layer after entering from bottom, thus processed.
Further, lower part is provided with vertical flow basin filter plate in the vertical sedimentation tank, after first carrying out filter plates Related sewage is managed, is purified at many levels.
Further, it is provided with dephosphorization filler layer above the vertical flow basin filter plate of several vertical sedimentation tanks, according to required Requirement increase corresponding dephosphorization filler layer, carry out dephosphorization for the sewage of this section.
A kind of multi-level tubular eddy flow oxygenation biological filter tank sewage water treating method, its step are as follows:
A, building multi-level tubular eddy flow is oxygenated biological filter sewage processing system;
B, sewage enters in continuous filter from water inlet pipe, by continuous filter filter material layer, filters out suspended matter, is oxygenated and manages into eddy flow It is interior;
C, sewage is flowed in eddy flow oxygenation pipe by the downward eddy flow of swirl-flow devices, since every grade of eddy flow is oxygenated tube transitions section Gas outlet at position and air themperature be higher than water distribution section, therefore air by water distribution section air inlet inversely on along pipeline flow-direction mistake A section gas outlet is crossed, carries out eddy flow oxygenation in oxygenation section and sewage counter current contact;
D, the sewage by eddy flow oxygenation enters biofilter bottom water distributing area, Zhi Houtong from the water distribution section of eddy flow oxygenation pipe It crosses biofilter filter plate and flows into bio-filter stuffing layer, since filter tank inner stuffing is light filler, upward liquid stream can make The slight fluidization of bio-filter stuffing bed optimizes waterpower distribution in filter tank, contacts sewage sufficiently with microorganism on filler, obtain It to purification, while preventing bed from blocking, and sweeps away the aging biomembrane on granule filter material surface, it is made to flow into subsequent perpendicular stream with water outlet Sedimentation basin;
E, after biofilter water outlet enters vertical sedimentation tank, fall off biomembrane and the suspension in removal water outlet can be precipitated Grain object, and the dephosphorization filler layer by being loaded on vertical flow basin filter plate, further denitrogenation dephosphorizing;
F, the water outlet of vertical sedimentation tank enters next stage processing system, this process plural serial stage, whole unpowered progress.
3. beneficial effect
Compared with the prior art, the present invention has the advantages that
(1) this programme adaptation to local conditions makes full use of mountainous region topographical elevation difference to realize the unpowered fortune of sewage disposal technology Row realizes the unpowered oxygenation of sewage by the low lower part air inlet of air pressure, and construction is convenient, not only reduces construction cost, And operating cost is extremely low;
(2) this programme combines the air inlet and water distribution section of setting, is effectively oxygenated by air pressure, unpowered, and technique shape Formula is simple, and fluidised biofilter can effectively avoid packing layer blockage problem, manages, is easy to maintain, day-to-day operation is not necessarily to Staff on duty;
(3) it is oxygenated position and air themperature at the gas outlet of tube transitions section due to every grade of eddy flow and is higher than water distribution section, bottom Air pressure is higher than upper layer air pressure, therefore air is inversely upper along pipeline flow-direction changeover portion gas outlet by water distribution section air inlet, is being oxygenated section Eddy flow oxygenation is carried out with sewage counter current contact, oxidation effect is good, ensure that going on smoothly for oxygenation by swirl-flow devices, and guarantee The abundant fusion of oxygen has been effectively ensured subsequent filter and has sufficiently been reacted among sewage;
(4) sewage after eddy flow oxygenation pipe oxygenation enters biofilter bottom water distributing area by water distribution section, due to filter Pond inner stuffing is light filler, and upward liquid stream can make the slight fluidization of filling batch, optimizes waterpower in filter tank and is distributed shape Condition contacts sewage sufficiently with microorganism on filler, is purified, while preventing bed from blocking, and sweeps away granular filler surface Aging biomembrane, make its with water outlet flow into post precipitation pond, keep granular filler surface microorganism film activity;
(5) this programme, which can according to need, loads dephosphorization filler in level-one or multistage vertical sedimentation tank, for a certain Duan Jinhang dephosphorization filtering, reinforces dephosphorization ability, it is ensured that it is up to standard to be discharged every pollutant concentration.
Detailed description of the invention
Fig. 1 is that multi-level tubular eddy flow is oxygenated biofilter sewage disposal device overall schematic;
Fig. 2 is continuous filter schematic diagram;
Fig. 3 is that eddy flow is oxygenated pipe schematic diagram;
Fig. 4 is vertical sedimentation tank schematic diagram;
Fig. 5 is that the unpowered pipe-type rotary-flow of single-stage is oxygenated biofilter operation schematic diagram.
Figure label explanation:
1, continuous filter;2, eddy flow oxygenation pipe;3, biofilter;4, vertical sedimentation tank;5, gas outlet;6, air inlet;7, it seeps Filter layer;8, changeover portion;9, it is oxygenated section;10, water distribution section;11, swirl-flow devices;12, biofilter filter plate;13, biological filter Pond packing layer;14, vertical flow basin filter plate;15, dephosphorization filler layer.
Specific embodiment
With reference to the accompanying drawings of the specification and specific embodiment, the present invention is described in detail.
Embodiment 1
The present invention makes full use of the orographic condition of mountain resorts, according to related hydraulics and aerodynamic principle, And every advantage of biological aerated filter is combined, a kind of multi-level tubular eddy flow oxygenation biofilter sewage disposal device and place are provided Reason method, it have many advantages, such as completely without power, construction cost is low, adaptation to local conditions using hillside fields landform, and it is an object of the present invention to provide A kind of construction and operating cost are low, manage simple sewage disposal technology, solve mountain resorts water pollution problems and sewage The construction for the treatment of facility, long-acting operation problem.
As shown in Figs 1-4, a kind of multi-level tubular eddy flow is oxygenated biological filter sewage processing system, it is by continuous filter 1, eddy flow Pipe 2, biofilter 3 and vertical sedimentation tank 4 is oxygenated to constitute.Continuous filter filter material layer 7 is filled in continuous filter 1;Eddy flow be oxygenated pipe 2 by Changeover portion 8, oxygenation section 9 and water distribution section 10 form, and dispose with terrain slope, and changeover portion is equipped with gas outlet 5, are oxygenated in section and are equipped with Swirl-flow devices 11, water distribution section 10 are equipped with air inlet 6;Biofilter 3 and vertical sedimentation tank 4 are separated by partition, in biofilter 3 Loaded particles filler, lower part is provided with vertical flow basin filter plate 14 in vertical sedimentation tank 4, and part vertical sedimentation tank 4 as needed loads Dephosphorization filler.Eddy flow oxygenation pipe 2 is disposed with terrain slope, and sewage accelerates in the changeover portion 8 of eddy flow oxygenation pipe 2, by being oxygenated section 9 Swirl-flow devices oxygenation, subsequently into biofilter 3, using microorganism on filler and eddy flow complement lysis oxygen, degradation, removal are every Pollutant, then fall off biomembrane and suspended particulate substance are retained by vertical sedimentation tank 4, and realize chemical dephosphorization as needed, this Process plural serial stage, whole unpowered progress.
Load packed granule filter material in the continuous filter 1.Wherein granule filter material can choose in sewage treatment common Particulate filler, such as rubble, anthracite, quartz sand, haydite select rubble in the present embodiment, it has from a wealth of sources, cheap The advantages of, particle diameter of filter medium generally takes 10-20mm, and it is outstanding that the filtrate of this partial size can be realized bulky grain in relatively effectively filtered water inlet Floating object, and can prevent filter layer from blocking in a longer period of time.
Without oxygenation, inner stuffing is light filler for the biofilter 3, rinses bed by the waterpower energy of flow, prevents Only bed blocks, and sweeps away the aging biomembrane on granular filler surface, it is made to flow into post precipitation pond with water outlet, and particle is kept to fill out Expect surface microorganism film activity.Composite plastic particle filler, packing density 1.1-1.3g/cm is used in this embodiment3, Packing material size is 1-2mm, and lesser partial size improves filler surface product in filter tank, increases microbial biomass, improves processing capacity, and And this small particle light filler can make to reach slight fluidization in filter tank under the conditions of certain hydraulic loading, optimize in filter tank Waterpower distribution situation contacts sewage sufficiently with microorganism on filler, is purified, while preventing bed from blocking, and sweeps away The aging biomembrane on particulate filler surface keeps granular filler surface microorganism film activity.
Dephosphorization filler is loaded in the vertical sedimentation tank 4, carries out chemical dephosphorization.20- is used in this embodiment Blocking can be effectively prevented as dephosphorization filler, big partial size in 40mm sulphur iron ore, utilizes removing from oxygen denitrogenation and chemistry for troilite Phosphorus effect, further decreases the nitrogen and phosphorus content in water outlet.
When power-free multi-stage pipe-type rotary-flow is oxygenated biofilter operation, suspended particulate in 1 filtered water inlet of continuous filter is first passed through Object, and play the role of certain anaerobic pretreatment.Then it is oxygenated pipe 2 by eddy flow to be oxygenated sewage: since every grade of eddy flow is oxygenated Position and air themperature at the gas outlet 5 of tube transitions section are higher than water distribution section 10, therefore air is inverse by the air inlet 6 of water distribution section 10 Upwards along the gas outlet of pipeline flow-direction changeover portion 85, eddy flow oxygenation is carried out in oxygenation section 9 and sewage counter current contact.Dirt after oxygenation Water enters the water distributing area of 3 bottom of biofilter by water distribution section 10, since filter tank inner stuffing is light filler, upward liquid stream It can make the slight fluidization of filling batch, optimize waterpower distribution situation in filter tank, contact sewage sufficiently with microorganism on filler, It is purified, while preventing bed from blocking, and sweep away the aging biomembrane on granular filler surface, flow into it with water outlet subsequent heavy Shallow lake pond keeps granular filler surface microorganism film activity.Water outlet retains fall off biomembrane and suspension by vertical sedimentation tank 4 again Grain object, and chemical dephosphorization is realized as needed.This process plural serial stage, whole unpowered progress.
Embodiment 2
Embodiment 2 is substantially same as Example 1, the difference is that, embodiment 2 is the unpowered pipe-type rotary-flow oxygenation of single-stage Biofilter,
As shown in figure 5, pipe-type rotary-flow is oxygenated biological filter sewage processing system, it is by continuous filter 1, eddy flow oxygenation pipe 2, life Object filter tank 3 and vertical sedimentation tank 4 are constituted.Continuous filter filter material layer 7 is filled in continuous filter 1;Eddy flow be oxygenated pipe 2 by changeover portion 8, fill Oxygen section 9 and water distribution section 10 form, and dispose with terrain slope, and changeover portion is equipped with gas outlet 5, are equipped with swirl-flow devices in oxygenation section 11, water distribution section 10 is equipped with air inlet 6;Biofilter 3 and vertical sedimentation tank 4 are separated by partition, loaded particles in biofilter 3 Filler, lower part is provided with vertical flow basin filter plate 14 in vertical sedimentation tank 4, and vertical sedimentation tank 4 loads dephosphorization filler.Eddy flow is oxygenated pipe 2 Disposed with terrain slope, sewage eddy flow oxygenation pipe 2 changeover portion 8 accelerate, by oxygenation 9 swirl-flow devices of section oxygenation, then into Enter biofilter 3, using microorganism on filler and eddy flow complement lysis oxygen, degradation removes every pollutant, then heavy by perpendicular stream Shallow lake pond 4 retains fall off biomembrane and suspended particulate substance, and realizes chemical dephosphorization as needed, this process plural serial stage, whole nothing Power carries out.
Embodiment 3
A kind of multi-level tubular eddy flow oxygenation biological filter tank sewage water treating method, its step are as follows:
A, biological filter sewage processing system is oxygenated according to a kind of 1 system of embodiment building multi-level tubular eddy flow;
B, sewage enters in continuous filter 1 from water inlet pipe, by continuous filter filter material layer 7, filters out suspended matter, is oxygenated into eddy flow In pipe 2;
C, sewage is flowed in eddy flow oxygenation pipe 2 by the downward eddy flow of swirl-flow devices 11, since every grade of eddy flow is oxygenated pipe mistake It crosses the position at the gas outlet 5 of section and air themperature is higher than water distribution section 10, therefore air is by the reverse upper edge of 10 air inlet of water distribution section 6 8 gas outlet 5 of pipeline flow-direction changeover portion carries out eddy flow oxygenation in oxygenation section 9 and sewage counter current contact;
D, the sewage by eddy flow oxygenation enters 3 bottom water distributing area of biofilter from the water distribution section 10 of eddy flow oxygenation pipe 2, it Bio-filter stuffing layer 13 is flowed by biofilter filter plate 12 afterwards, since filter tank inner stuffing is light filler, upward liquid Stream can make the slight fluidization of bio-filter stuffing layer 13, optimize waterpower distribution in filter tank, make sewage sufficiently with life micro- on filler Object contact, is purified, while preventing bed from blocking, and sweep away the aging biomembrane on granule filter material surface, makes it with water flow out Enter subsequent vertical sedimentation tank 4;
E, after the water outlet of biofilter 3 enters vertical sedimentation tank 4, fall off biomembrane and the suspension in removal water outlet can be precipitated Particulate matter, and the dephosphorization filler layer 15 by being loaded on vertical flow basin filter plate 14, further denitrogenation dephosphorizing;
F, the water outlet of vertical sedimentation tank 4 enters next stage processing system, this process plural serial stage, whole unpowered progress.
After this programme is handled, nitrogen and phosphorus indexes are substantially reduced, and non-power consumption, economical environment-protective, effluent quality index Reach " town domestic sewage pollutant emission standard " level-one B standard comprehensively.
Embodiment 4
Certain mountain scenery area tourist transfer distribution centre public lavatory flushing waste water is handled using this method and equipment, the discharge of sewage is 50m3/d。
Between 30 ° -60 ° of the slope terrain gradient, hillside length 80m, using level Four pipe-type rotary-flow oxygenation biofilter processing. The long 1m in continuous filter, wide 1m, height 1m;Pipe 2 is oxygenated using DN150 eddy flow, swirl-flow devices 11 use Shaftless spiral blade, outside blade Diameter φ 150mm, internal diameter φ 80mm, screw pitch d=300mm;The eddy flow of the first order is oxygenated 2 total length 25m of pipe, and changeover portion 8 is 1m long, fills Oxygen section 9 is long 15m, and water distribution section 10 is 9m long;The eddy flow of the second level is oxygenated 2 total length 25m of pipe, and changeover portion 8 is 1m long, and oxygenation section 9 is long 15m, water distribution section 10 are 9m long;The eddy flow of the third level is oxygenated 2 total length 15m of pipe, and changeover portion 8 is 1m long, and oxygenation section 9 is 10m long, water distribution section 10 long 4m;The eddy flow of the fourth stage is oxygenated 2 total length 15m of pipe, and changeover portion 8 is 1m long, and oxygenation section 9 is 10m long, and water distribution section 10 is 4m long;Respectively Grade biofilter 3 and 4 size of vertical sedimentation tank are just as length 2m, width 1m, height 1m;In the vertical sedimentation tank 4 of the third level Load dephosphorization filler layer, thickness 0.5m.
Every 3 total measurement (volume) 1m of biofilter3, dischargeable capacity 0.75m3, totally 4, amount to dischargeable capacity 3m3.It filters continuous filter 1 Material uses 10-20mm crushed rock filler, and 3 filler of biofilter uses 1-2mm composite plastic particle filler, and dephosphorization filler uses 20- 40mm sulphur iron ore.Main Inlet and outlet water index comparison is as follows:
The process and equipment effluent quality index reach " town domestic sewage pollutant emission standard " level-one B comprehensively Standard.
Embodiment 5
Certain mountain area village sanitary sewage, discharge of sewage 20m are handled using this method and equipment3/d。
Between 30 ° -60 ° of the slope terrain gradient, hillside length 65m, using three-level pipe-type rotary-flow oxygenation biofilter processing. Continuous filter 1 is 0.7m long, wide 0.7m, height 1m;Pipe 2 is oxygenated using DN100 eddy flow, swirl-flow devices 11 use Shaftless spiral blade, Outer blade diameter φ 100mm, internal diameter φ 70mm;The eddy flow of the first order is oxygenated 2 total length 25m of pipe, and changeover portion 8 is 1m long, and oxygenation section 9 is long 15m, water distribution section 10 are 9m long;The eddy flow of the second level is oxygenated 2 total length 25m of pipe, and changeover portion 8 is 1m long, and oxygenation section 9 is 15m long, water distribution section 10 long 9m;The eddy flow of the third level is oxygenated 2 total length 15m of pipe, and changeover portion 8 is 1m long, and oxygenation section 9 is 10m long, and water distribution section 10 is 4m long;Respectively Grade biofilter 3 and 4 size of vertical sedimentation tank are just as length 2m, width 1m, height 1m;In the vertical sedimentation tank 4 of the third level Load dephosphorization filler layer, thickness 0.5m.
Every 3 total measurement (volume) 0.75m of biofilter3, dischargeable capacity 0.5m3, totally 3, amount to dischargeable capacity 1.5m3.Continuous filter 1 filtrate uses 10-20mm crushed rock filler, and 3 filler of biofilter uses 1-2mm composite plastic particle filler, and dephosphorization filler uses 20-40mm sulphur iron ore.Main Inlet and outlet water index comparison is as follows:
The process and equipment effluent quality index reach " town domestic sewage pollutant emission standard " level-one B comprehensively Standard.
Schematically the invention and embodiments thereof are described above, description is not limiting, not In the case where spirit or essential characteristics of the invention, the present invention can be realized in other specific forms.Institute in attached drawing What is shown is also one of the embodiment of the invention, and actual structure is not limited to this, any attached in claim Icon note should not limit the claims involved.So not departed from if those of ordinary skill in the art are inspired by it In the case where this creation objective, frame mode similar with the technical solution and embodiment are not inventively designed, it should all Belong to the protection scope of this patent.In addition, one word of " comprising " is not excluded for other elements or step, "one" word before the component It is not excluded for including " multiple " element.The multiple element stated in claim to a product can also by an element by software or Person hardware is realized.The first, the second equal words are used to indicate names, and are not indicated any particular order.

Claims (9)

1. a kind of multi-level tubular eddy flow is oxygenated biological filter sewage processing system, it is characterised in that: including continuous filter (1), eddy flow Oxygenation pipe (2), biofilter (3) and vertical sedimentation tank (4), the continuous filter (1) is set to and need to handle at sewage, continuous filter (1) it is located at whole system highest point, continuous filter (1) passes through along the first of the down-set eddy flow oxygenation pipe (2) of the gradient and lower section The biofilter (3) of grade is connected with the vertical sedimentation tank (4) of the first order, the biofilter (3) of the first order and erecting for the first order The biofilter (3) and that sedimentation tank (4) passes through eddy flow oxygenation pipe (2) and the second level along the down-set first order of the gradient The vertical sedimentation tank (4) of second level is connected, by several grades of eddy flow oxygenation pipes (2), biofilter (3) and vertical sedimentation tank (4) After complete sewage treatment;The eddy flow oxygenation pipe (2) is divided into changeover portion (8), oxygenation section (9) and water distribution section (10), and eddy flow fills Oxygen pipe (2) is arranged along the gradient, and top is changeover portion (8), and middle part is oxygenation section (9), and bottom is water distribution section (10), changeover portion (8) It is provided perpendicular to the gas outlet (5) in the earth's core direction, water distribution section (10) is provided perpendicular to the air inlet (6) in the earth's core direction, fills Oxygen section (9) is internally provided with swirl-flow devices (11).
2. a kind of multi-level tubular eddy flow according to claim 1 is oxygenated biological filter sewage processing system, it is characterised in that: The swirl-flow devices (11) are Shaftless spiral blade, and outer diameter and eddy flow oxygenation pipe (2) internal diameter of blade are adapted.
3. a kind of multi-level tubular eddy flow according to claim 1 is oxygenated biological filter sewage processing system, it is characterised in that: It is provided with continuous filter filter material layer (7) in the continuous filter (1), sewage passes through continuous filter filter material layer (7) from continuous filter (1) side It is flowed out afterwards from the other side.
4. a kind of multi-level tubular eddy flow according to claim 3 is oxygenated biological filter sewage processing system, it is characterised in that: The continuous filter filter material layer (7) is several bagged granules filtrates superposition composition.
5. a kind of multi-level tubular eddy flow according to claim 1 is oxygenated biological filter sewage processing system, it is characterised in that: The biofilter (3) and vertical sedimentation tank (4) is the filtering ponds separated by a partition, eddy flow oxygenation pipe (2) and biology The connection of filter tank (3) bottom, biofilter (3) treated sewage enter vertical sedimentation tank (4) bottom by upper pipe, precipitating It is flowed out afterwards by vertical sedimentation tank (4) top.
6. a kind of multi-level tubular eddy flow according to claim 5 is oxygenated biological filter sewage processing system, it is characterised in that: Described biofilter (3) bottom is provided with biofilter filter plate (12), and middle part is biofilter packing layer (13), and sewage is the bottom of from Portion passes sequentially through biofilter filter plate (12) and bio-filter stuffing layer (13) after entering, thus processed.
7. a kind of multi-level tubular eddy flow according to claim 5 or 6 is oxygenated biological filter sewage processing system, feature exists In: described vertical sedimentation tank (4) the interior lower part is provided with vertical flow basin filter plate (14).
8. a kind of multi-level tubular eddy flow according to claim 7 is oxygenated biological filter sewage processing system, it is characterised in that: Dephosphorization filler layer (15) are provided with above the vertical flow basin filter plate (14) of several vertical sedimentation tanks (4).
9. a kind of multi-level tubular eddy flow is oxygenated biological filter tank sewage water treating method, its step are as follows:
A, a kind of multi-level tubular eddy flow oxygenation biological filter sewage processing system is constructed according to claim 1;
B, sewage enters in continuous filter (1) from water inlet pipe, by continuous filter filter material layer (7), filters out suspended matter, is oxygenated into eddy flow It manages in (2);
C, sewage is oxygenated in pipe (2) in eddy flow by swirl-flow devices (11) eddy flow flowing downwards, since every grade of eddy flow is oxygenated pipe mistake It crosses the position at the gas outlet (5) of section and air themperature is higher than water distribution section (10), therefore air is by water distribution section (10) air inlet (6) Along pipeline flow-direction changeover portion (8) gas outlet (5) on reverse, eddy flow oxygenation is carried out in oxygenation section (9) and sewage counter current contact;
D, the sewage by eddy flow oxygenation enters biofilter (3) bottom water distributing area from the water distribution section (10) that eddy flow is oxygenated pipe (2), Bio-filter stuffing layer (13) are flowed by biofilter filter plate (12) later, since filter tank inner stuffing is light filler, to On liquid stream can make bio-filter stuffing bed (13) slight fluidization, optimize waterpower distribution in filter tank, make sewage sufficiently with Microorganism contacts on filler, is purified, while preventing bed from blocking, and sweep away the aging biomembrane on granule filter material surface, makes It flows into subsequent vertical sedimentation tank (4) with water outlet;
E, after biofilter (3) water outlet enters vertical sedimentation tank (4), fall off biomembrane and the suspension in removal water outlet can be precipitated Particulate matter, and the dephosphorization filler layer (15) by being loaded on vertical flow basin filter plate (14), further denitrogenation dephosphorizing;
F, the water outlet of vertical sedimentation tank (4) enters next stage processing system, this process plural serial stage, whole unpowered progress.
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