CN109437484A - A kind of Biological Pretreatment system and method suitable for river type water head site water body - Google Patents
A kind of Biological Pretreatment system and method suitable for river type water head site water body Download PDFInfo
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- CN109437484A CN109437484A CN201811455003.9A CN201811455003A CN109437484A CN 109437484 A CN109437484 A CN 109437484A CN 201811455003 A CN201811455003 A CN 201811455003A CN 109437484 A CN109437484 A CN 109437484A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 307
- 238000000034 method Methods 0.000 title abstract description 63
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- 238000012856 packing Methods 0.000 claims abstract description 35
- 239000000945 filler Substances 0.000 claims abstract description 22
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002203 pretreatment Methods 0.000 claims abstract description 9
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- 239000004917 carbon fiber Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
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- 241001365789 Oenanthe crocata Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
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- 239000003463 adsorbent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
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- 238000011953 bioanalysis Methods 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
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- 238000011068 loading method Methods 0.000 description 1
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- 239000002352 surface water Substances 0.000 description 1
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- 239000008399 tap water Substances 0.000 description 1
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- 238000010200 validation analysis Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of Biological Pretreatment system and methods suitable for river type water head site water body, and this method is to belong to water-treatment technology field.The biologic pretreatment method of type water head site water body in river of the present invention does not need new construction of structures, does not have to land occupation, is a kind of in-situ pretreatment method.Source water flows into packing area after natural sedimentation, under the double action of water body nature fluidised form and micro-pore aeration, it comes into full contact with and reacts with filler, improve the biodegradability of water body, it can be effectively reduced the concentration of ammonia nitrogen and COD in water body, wetland plant area is finally flowed into, further decreases water source pollutant in water using the effects of assimilation of plant-biology, absorption, conversion.This method has many advantages, such as that capital expenditure is few, implements simple, stable, significant effect.
Description
Technical field
The invention belongs to water-treatment technology fields, are a kind of original positions for river type water head site water body more specifically
Preconditioning technique.
Background technique
With the quickening of China's modernization construction process, a large amount of industrial wastewaters and sanitary sewage are not reached without processing or processing
Mark and direct emission so that the black smelly phenomenon of urban river is serious causes the water head site in cities and towns also by different degrees of pollution.Water
Pollutant kind and quantity in the water of source greatly increase, property is complicated, but concentration is again relatively low, especially those hardly possible drops
Solution, the organic pollutant of bioaccumulation is very big to human health damage.And tap water water factory is normal based on turbidity removal and disinfection
The water treatment technology of rule does not have an apparent removal effect to micropollution substance in water, and effluent quality, which is difficult to reach water quality safety, to be wanted
It asks.Therefore, it is necessary to reasonably be pre-processed to source water, to mitigate the load of subsequent water factory's treatment process.
The pretreatment of water typically refers in face of conventional treatment process, using suitable physical, the processing side of chemistry and biology
Method carries out primary removal to the pollutant in water, while conventional treatment can be made preferably to play a role, and mitigates processed conventionally
Burden, improves drinking water quality.Currently, common preconditioning technique has aeration, absorption method, chemical method, life
Object method.Wherein, aeration is not used alone usually, is such as applied in combination with bioanalysis, can effectively reduce the ammonia nitrogen in water body.Absorption
Method commonly uses some such as active carbons, natural zeolite with huge specific surface area and the strong solid material of adsorption capacity, can reduce water
Turbidity, coloration etc. in body are one of common processing techniques of water factory.But because these adsorbent materials have it is non-renewable,
And fixed consersion unit is needed, operating cost is high, suitable for application in the pretreating process of source water original position.Chemical method
Medicament mainly strong using oxidability, such as potassium permanganate, chlorine, ozone are reached by destroying the structure of pollutant in water body
To conversion or the purpose of decomposing pollutant.The technology is also one of common processing technique of water factory, and pollutant removal is significant,
But often there is certain security risk using Chemical treatment drinking water, and be used in water head site preprocessing process, place
It manages at high cost, big on river ecosystem influence etc..The biologic pretreatment method of source water is mainly exactly biofilm, including life
Object contact-oxidation pool, biofilter, biological rotating disk, biological fluidized bed etc..In addition, artificial swamp is also at present with more pre-
One of prescription method, either biofilm or artificial swamp method, in water body ammonia nitrogen and organic matter all have and preferably go
Except effect, and economical and effective, without secondary pollution, operating cost is low, management is easy.
In the research of water head site original position preconditioning technique, domestic scholars have carried out many various researchs.Liu Kejun, Lv Xi
Force etc. fills the source water of scenery with hills and waters library water factory using three rank drop water aeration reactor for treatment Taihu Lake side, and water quality acquirement is obviously improved,
Main water quality indicator turbidity, ammonia nitrogen and permanganate index decline 36.2%, 65.4% and 17.0% respectively.Dong Yulian etc. is used
Floating stuffing biological contact method pre-processes Zhujiang River raw water, after processing in raw water ammonia nitrogen and permanganate index respectively under
Drop 80%~90%, 15.6%~23.2%；Han Mei etc. has studied gear type fluidisation carrier organism contact-oxidation pool to certain water
Factory's source water pretreating effect, the results showed that ammonia nitrogen removal frank is up to 80.26%.And the present invention is suitable for river water source, according to
Water regime on the spot, in conjunction with microkinetic aeration and carrier organism membrane technology, after practical application, main water quality indicator factor concentration
It is obviously reduced compared with former achievements.
For example, Chinese Patent Application No. is 200810155119.0, application publication date is the patent Shen on March 11st, 2009
Please file disclose a kind of multi-stage ecological purification technique of drinking water resource.The patent uses sedimentation basin, biochemistry pool, compound wetland
With four technique unit series connection of regulating reservoir；Chinese Patent Application No. is 201210181368.3, and application publication date is 2012
The patent application document on October 3 discloses a kind of ecological purification technique of contaminated drinking water source raw water.The raw water of the patent
It is net followed by pretreatment unit, load wetland purification unit, efficient oxidation clean unit, submerged plant clean unit and depth
Change unit, water outlet enters water factory and handled.The pre- prescription method of both the above is all made of artificial swamp method and is located in advance to source water
Reason, it is preferable to the pollutant process effect in water, but exist with artificial swamp pretreatment source water and take up a large area, base
Build the disadvantages of expense and operating cost are higher, process is complex.
For another example, Chinese Patent Application No. 201510415295.3, application publication date are the patent on November 25th, 2015
Application documents disclose a kind of water head site water quality in-situ pretreatment method.The patent is terminal at water source using waterworks intake
Water channel is arranged according to landform in ground, and light catalytic purifying area, combined ecological floating bed purifying area and aquatic plant is respectively set along water channel
Object purifying area intakes to waterworks in water channel and carries out pretreatment in situ.The water channel is enclosed by isolated column to be set, and
The water channel water inlet end is equipped with the block for catching rubbish and fluitante.Three kinds of purifying areas can adaptation to local conditions progress
Combination.Compared with prior art, efficient coupling of the present invention photocatalysis, biological floating bed, bio-contact oxidation filler and plant is repaired
Multiple four kinds of water purification technologies in situ, structure design is simple, effectively promotes water head site water quality.But waterpower needed for photocatalysis
Residence time is longer, could there is obvious degradation effect to pollutant, and the present invention combines packing area biology using microkinetic aeration
Contact treatment reduces operational procedure in the case where guaranteeing contaminant degradation effect, convenient for Engineering operation and maintenance.
For another example, Chinese Patent Application No. 201510845266.0, application publication date are the patent Shen on March 16th, 2016
Please file disclose a kind of black-odor riverway water body in-situ restoration method.The patent is the following steps are included: (1) detects river water
Contamination index；(2) river is pre-processed；In such a way that biology is oxygen-enriched, water oxygenation is carried out to black-odor riverway, keeps river
The concentration of dissolved oxygen is in 2mg/L~8mg/L in road aquatic system；(3) Parallel to the flow direction is laid with carbon fiber life in black-odor riverway
State grass, wherein one end of carbon fiber ecological grass is fixed on iron frame, and iron frame is consolidated by the way of additional weight or anchor
It is scheduled on bottom of river channel.Laying density according to carbon fiber ecological grass after biofilm 40cm2/ L metering；After (4) 3~5 days, to carbon fiber
The preliminary biofilm of ecological grass is sprayed after cultivation by the way of the sprinkling of the liquid water surface to the starting end of black-odor riverway difference waters section
Indigenous microorganism, microorganism adds region area according to the 41% of water surface area, according to the waters of different quality, launches ratio
According to (2~5) of region water: 104；Inexpensive, the low running cost for solving the problems, such as that the river got worse is black smelly, and developing
With, safety water remediation method.But carbon fiber grass is at high cost, up-front investment is high, and a combination thereof technology is suitable for black smelly
In comprehensive water-body administration project, skill is promoted with water head site water quality and is had differences.
Chinese Patent Application No. is 201710819074.1, and application publication date is the patent application document on January 9th, 2018
Disclose the purification system and method for Drain contamination for river channel risk point.The patent includes the following steps: to utilize sewage collector will
Sewage collecting；It will be transported to pretreatment unit after sewage collecting and carry out pre-treatment step；Pretreated sewage is passed through into micro- life
Object intensive treatment unit carries out microbial augmentation processing step；The sewage after intensive treatment is carried out again using artificial swamp unit
The step of processing.Its inventive technique mainly in water course in situ processing, is set in secondary riverbed, does not influence the flood passage function in river,
It suitable for the insufficient river of two sides land used, is combined by multinomial technical optimization, constitutes more perfect ecological purification system, played
The integrated advantage that the multiple technologies such as microorganism and artificial swamp are complementary, act synergistically, realizes urban river water enhancement of environment and Ecology
The organic unity of reparation.But this technology is mainly used in the promotion of sewage water discharge saliva matter, cuts down pollutant and enters river load, no
Suitable for the biggish drinking water source pretreatment of water.
Therefore, in order to solve the problems, such as that water quality raising efficiency in situ is low under shorter hydraulic detention time, the present invention exists
On the basis of forefathers' research and actual requirement of engineering, a kind of river type source water biology in situ preprocess method is proposed, directly
Connect the progress bio-contact oxidation pretreatment in river.
Summary of the invention
1. to solve the problems, such as
The effect promoted the purpose of the present invention is improving source water in-situ treatment water quality provides a kind of suitable for river type water
Source water body Biological Pretreatment system and method.It is aerated in conjunction with microkinetic and using Novel toothed wheel-type floating stuffing as the life of carrier
Object membrane technology, and the emergent aquactic plant type for being suitble to water head site is planted, guarantee the efficiency that water quality in situ is promoted, solves existing water at present
Pre-process in engineering to source, in terms of the planting density and kinds of planting there are wetland plant configuration in terms of unsharp problem, together
When solve conventional combination technology, such as photocatalysis+technology of biological membrane+wetland technology is in situ under shorter hydraulic detention time
The low problem of water quality raising efficiency.
2. technical solution
To solve the above-mentioned problems, the technical solution adopted in the present invention is as follows:
In order to overcome deficiency existing for existing source water preconditioning technique, a kind of river type source water provided by the invention is former
Position preprocess method can be realized in river completion bio-contact oxidation reaction process, realize to ammonia nitrogen in source water, organic
The pollutants such as object effectively remove, and mitigate the load of subsequent water factory's water-purifying process.Technical scheme is as follows:
A kind of Biological Pretreatment system suitable for river type water head site water body, including what is be sequentially arranged along water (flow) direction
Three sections of settling zone, packing area and wetland plant area；Twice water fender is arranged in Transverse to the flow direction in the settling zone, along water flow side
To first of water fender top exceed 200~500mm of river ordinary water level, bottom sinks to river bed, 200 more than river bed~
Laterally aperture at spacing intervals at 500mm；The second water fender top of Parallel to the flow direction is located at 200 under river ordinary water level
River bed is sunk in~500mm, bottom；It realizes that upland water enters settling zone from bottom after water fender setting, flows out and precipitate from upper layer
Area is sequentially arranged along water (flow) direction.
Further, first of water fender is lateral every 300mm aperture, aperture face at 200~500mm more than river bed
400~2500cm of product2；It is related to river mean flow rate and settling zone residence time to precipitate section length, is determining design stop
After time and river information system flow velocity, according to residence time T=volume/flow Q, length L=60 × residence time T can be calculated to obtain
(min) × water volume flow rate V (m/s), wherein the residence time, the desirable repeatedly actual measurement of water volume flow rate was average generally in 30min~60min
Value.
Further, the packing area is made of floating stuffing, integrated cylinder mould, aeration tube.
Further, the floating stuffing is gear type fluidized packing material, than weighing about 0.94~0.97g/cm3, specific surface
Product >=200m2/m3, the outer dimension of floating stuffing is diameterFloating stuffing is filled in
In integrated cylinder mould, filling rate is 35%~50%.
Further, the integrated netpen framework is welded by coating steel pipe or rod thread connects, outside frame
Fixed Buddhist nun's stainless steel crimped wire mesh forms the closed hexahedron filler cylinder mould that there is crimped wire mesh in six faces, cylinder mould top cover and cylinder mould master
For body using steel wire binding connection, it is about 0.707 × filler diameter that stainless steel, which crimps screen distance,Wherein, the size of integrated cylinder mould
Are as follows: it is long: 1000mm~3000mm, wide: 800mm~3400mm is high: 800mm~3400mm.
Further, integrated cylinder mould lower end is supported by stabilizer blade, and packaged equipment is made by the way of prefabrication, after by
Crane hanging component.
Further, aeration tube installation fits in outside integrated cylinder mould, by aeration supervisor and aeration branch pipe group
At；The caliber D of supervisor is aerated between 100mm~200mm, is arranged along one side of integrated cylinder mould and bottom surface central axes；It exposes
Gas branch pipe caliber d is between 25mm~40mm, and aeration branch pipe is set to the bottom of integrated cylinder mould, and arranged direction is perpendicular to bottom
The aeration of central axes is responsible for, spacing 500mm between aeration branch pipe, is all communicated with aeration supervisor；Aeration branch pipe is towards integrated net
Side inside cage offers two rows of solarization air caps, and the line of every row's solarization air cap and the central axes of aeration branch pipe are formed by two
Face all forms the angle of α, and 30 °≤α≤45 °, wherein the adjacent solarization air cap in the same side with axial plane in the level of aeration branch pipe
It is spaced 150mm, the adjacent solarization air cap interval 75mm of heteropleural, the aperture of solarization air cap is 1~3mm.
Further, aeration supervisor is connected to appendix, one end air blower of appendix, and appendix is located at integrated net
On one side of cage, gas is provided for aeration tube, realizes Air Exposure.
Further, the aeration quantity size of the aeration tube and processing water ratio (abbreviation gas-water ratio) 1:(2~
5) between.
Further, the wetland plant area mainly by emergent aquactic plant and it is biological floating bed form, emergent aquactic plant plantation is wide
Degree is not less than 5m, and biological floating bed monomer area is not less than 12m2。
Further, emergent aquactic plant is the one or more of reed, cattail, yellow flag and Monochoria korsakowii.
Further, river type water head site normal depth of flow is 1.5m~5m, and river width is 50m~100m.
A kind of biologic pretreatment method suitable for river type water head site water body, step are as follows:
(1) 2 water fenders are arranged in Transverse to the flow direction in settling zone, and upland water is from first of water fender lower part into precipitating
Settling zone is flowed out from second water fender top in area, the water body in settling zone since water flow is hindered, silt that water body carries and its
He can settle large particle in settling zone, reduce the pollutional load for entering packing area water body；
(2) water body for flowing out settling zone enters packing area, in the case where being aerated the double action with water body itself fluidised form, packing area
Water body fluidized state reaches most preferably, and filler is flowed up and down and mutually collided, and improves the biodegradability of water body, realizes ammonia in water body
The pollutants such as nitrogen and organic matter effectively remove；
(3) enter wetland plant area behind water body outflow packing area, since the biodegradability of water body is greatly improved, in water body
Nitrogen, phosphorus, organic matter etc. be easier to be absorbed by plants, convert, to realize the removal of polluter.
3. beneficial effect
Compared with the prior art, the invention has the benefit that
(1) source water biologic pretreatment method of the invention is by strengthening natural sedimentation, bio-contact oxidation, plant absorption
Conversion, can effectively remove the polluters such as organic matter, ammonia nitrogen, the SS in raw water, and the pollution for reducing subsequent water factory's water-purifying process is negative
Lotus；Particularly, strengthen natural sedimentation mainly to pass through open-cell baffle and extend the theoretical value of natural sedimentation time, it can be with validation
The characteristics of solving river type water head site SS too high levels.
(2) source water biologic pretreatment method of the invention is a kind of in-situ treatment method, does not need new construction of structures, no
Land occupation area is needed, it is easy to implement, capital construction and operating cost can be greatly reduced.
(3) floating stuffing of packing area of the present invention uses gear type fluidized packing material, and floating stuffing is added directly to packing area
In integrated cylinder mould, external force is generated under air water synergy makes filler suspension collision, accelerates aging biofilm detachment, makes to suspend
Fluidisation state is presented in filler, and pollutant fluxes rate is high.
(4) integrated wire mesh cage structures of the invention are simple, securely effectively, and by the way of prefabrication, are convenient for engineering
Or Late reformation engineering construction.
(5) aeration tube setting method of the invention has aeration density high, effectively makes gear type fluidized packing material that fluidisation be presented
State, and effectively improve bio-contact oxidation pollutant fluxes effect.
(6) spies such as adaptable strong, the contaminant removal efficiency height of the emergent aquactic plant that wetland plant area of the invention uses
Point, while being beneficial to river type water head site ecoscape construction, biological floating bed application layout density, can be effective by optimization
The performance of fortification of plants sorption enhanced pollutant.
Detailed description of the invention
Fig. 1 is flow diagram of the invention；
Fig. 2 is integrated cylinder mould and aeration tube arrangement schematic diagram；
Fig. 3 is integrated cylinder mould assembling schematic diagram；
Fig. 4 is the schematic diagram of solarization air cap on aeration branch pipe；
Label declaration in schematic diagram:
1, integrated cylinder mould；2, aeration supervisor；3, stabilizer blade；4, aeration branch pipe；5, air blower；6, appendix；7, stainless steel
Crimped wire mesh；8, solarization air cap.
Specific embodiment
The present invention is further described below combined with specific embodiments below.
Embodiment 1
The present invention is further described below combined with specific embodiments below.
A kind of Biological Pretreatment system and method suitable for river type water head site water body, the present embodiment choose plain river network
The river that the regional depth of water is 3m, river width is 50m carries out the Biological Pretreatment of water body, as shown in Figure 1, raw water is followed by precipitating
Area, packing area and wetland plant area, arrow direction indicates water (flow) direction in figure.Wherein:
(1) twice water fender is arranged in settling zone, and first of water fender along water (flow) direction exceeds river ordinary water level
River bed is sunk in 200mm, bottom, and for first of water fender every one of slot of 300mm at the above 200mm in bottom, hole is long
500mm × wide 200mm.The second water fender top of Parallel to the flow direction is located at 200mm under river ordinary water level, and settling zone stops
Staying the time is 30min, surveys 5 water volume flow rates with current meter, and the average value for acquiring water volume flow rate is 0.05m/s, then settling zone
Length L is set as 90m.
(2) packing area is using gear type fluidized packing material, and specific gravity is 0.97 × 10 when non-biofilm3kg/m3, filler shape
SizeSpecific surface area 201m2/m3, porosity 94%, weight accumulation 65kg/m3.As shown in Fig. 2, integrated
Cylinder mould 1 is regular hexahedron, and length, width and height are 2000mm, and integrated 1 lower end of cylinder mould is supported by stabilizer blade 3, distance from bottom river bed
300mm makes packaged equipment by the way of prefabrication, after by crane hanging component.
Cylinder mould external frame is welded by coating steel pipe, fixed Buddhist nun's stainless steel crimped wire mesh 7 outside frame, cylinder mould top cover with
Cylinder mould main body is using steel wire binding connection, stainless steel crimped wire mesh 7 string diameter 2mm, the aperture 35.35mm of stainless steel crimped wire mesh 7.It places
16 cylinder moulds (every row 4, totally 4 row) are staggered installation of in river that (the second row top is flushed with the first row end, the third line top
Flushed with the second row end, fourth line top is flushed with the third line end), the filling rate of filler is 50% in cylinder mould.
Aeration supervisor 2 fits on each integrated cylinder mould 1, is laid with along a side and bottom surface central axes, aeration supervisor 2
Total 4m；And aeration branch pipe 4 passes through the aeration supervisor 2 of 1 bottom surface of integrated cylinder mould, is laid side by side, aeration branch pipe is arranged side by side 4,
Spacing 500mm is laid with direction perpendicular to aeration supervisor 2, and every aeration branch pipe 4 is 8m long.
Aeration branch pipe 4 offers two rows of solarization air caps 8, and the company of every row's solarization air cap 8 towards the side inside integrated cylinder mould 1
The central axes of line and aeration branch pipe 4 are formed by two faces, and 45 ° of angle is all formed with axial plane in the level of aeration branch pipe 4,
In, the adjacent solarization air cap 8 in the same side is spaced 150mm, and the adjacent solarization air cap 8 of heteropleural is spaced 75mm, as shown in Figure 4.Aeration supervisor 2
Caliber 100mm, 4 caliber 25mm of aeration branch pipe, 8 aperture 2.5mm of solarization air cap.
Aeration supervisor 4 is connected to appendix 6, one end air blower 5 of appendix 6, and appendix 6 is located at integrated cylinder mould 1
A side on, provide gas for aeration tube, realize that gas-water ratio is the Air Exposure of 1:2.
(3) wetland plant area emergent aquactic plant has reed, cattail, yellow flag and Monochoria korsakowii, is 1:1:1:2 by arrangement areas ratio
Plantation, emergent aquactic plant plantation bandwidth reach 12m.Biological floating bed monomer area is 24m2, the gross area reaches 600m2, biological floating bed
Surrounding collocation Festuca Arundinacea turf, plantation width are 0.5m.
Using a kind of Biological Pretreatment system and method suitable for river type water head site water body of the invention, by 3
The tracking sampling of the moon and water analysis, obtain the preprocess method to the removal effect of micropollutants in source water, see the table below:
| Serial number | Contamination index | Water inlet | Water outlet | Average removal rate |
| 1 | Suspended matter | 13.03mg/L | 5.87mg/L | 54.95% |
| 2 | Ammonia nitrogen | 0.50mg/L | 0.18mg/L | 64% |
| 3 | Total phosphorus | 0.16mg/L | 0.09mg/L | 43.75% |
| 4 | CODcr | 6.51mg/L | 5.58mg/L | 14.29% |
| 5 | BOD5 | 3.22mg/L | 3.16mg/L | 1.86% |
| 6 | BOD/CODcr | 0.49 | 0.57 | / |
By Biao Ke get, the present embodiment reaches ground to the main water quality indicator such as source water Water quality ammonia nitrogen, total phosphorus, COD, BOD
Table water Group III standard.Also water quality is obviously improved biodegradability index BOD/CODcr than before, rises to 0.57 left side by 0.49
It is right.
Embodiment 2
The present invention is further described below combined with specific embodiments below.
A kind of Biological Pretreatment system and method suitable for river type water head site water body, the present embodiment choose plain river network
The river that the regional depth of water is 4.5m, river width is 75m carries out the Biological Pretreatment of water body, as shown in Figure 1, raw water is followed by precipitating
Area, packing area and wetland plant area, arrow direction indicates water (flow) direction in figure.Wherein:
(1) twice water fender is arranged in settling zone, and first of water fender along water (flow) direction exceeds river ordinary water level
River bed is sunk in 350mm, bottom, and first of water fender opens one of slot every 300mm at the above 350mm in bottom, and hole is long
200mm × wide 200mm.The second water fender top of Parallel to the flow direction is located at 350mm under river ordinary water level, and settling zone stops
Staying the time is 45min, surveys 5 water volume flow rates with current meter, and the average value for acquiring water volume flow rate is 0.04m/s, then settling zone
Length L is set as 108m.
(2) packing area is using gear type fluidized packing material, and specific gravity is 0.94 × 10 when non-biofilm3kg/m3, filler shape
SizeSpecific surface area 200m2/m3, porosity 94%, weight accumulation 65kg/m3.As shown in Fig. 2, integrated
Cylinder mould 1 is regular hexahedron, and length, width and height are 3000mm, and integrated 1 lower end of cylinder mould is supported by stabilizer blade 3, distance from bottom river bed
400mm makes packaged equipment by the way of prefabrication, after by crane hanging component.
Cylinder mould external frame is formed by connecting by coating steel pipe rod thread, fixed Buddhist nun's stainless steel crimped wire mesh 7, net outside frame
Cage top lid and cylinder mould main body are connected using steel wire binding, 7 string diameter 2mm of stainless steel crimped wire mesh, the aperture of stainless steel crimped wire mesh 7
21.21mm.20 cylinder moulds (every row 5, totally 4 row) are set and are staggered installation of in river that (the second row top and the first row end are neat
Flat, the third line top is flushed with the second row end, and fourth line top is flushed with the third line end), the filling rate of filler in cylinder mould
It is 35%.
Aeration supervisor 2 fits on each integrated cylinder mould 1, is laid with along a side and bottom surface central axes, aeration supervisor 2
Total 4m；And aeration branch pipe 4 passes through the aeration supervisor 2 of 1 bottom surface of integrated cylinder mould, is laid side by side, aeration branch pipe is arranged side by side 5,
Spacing 500mm is laid with direction perpendicular to aeration supervisor 2, and every aeration branch pipe 4 is 8m long.
Aeration branch pipe 4 offers two rows of solarization air caps 8, and the company of every row's solarization air cap 8 towards the side inside integrated cylinder mould 1
The central axes of line and aeration branch pipe 4 are formed by two faces, and 45 ° of angle is all formed with axial plane in the level of aeration branch pipe 4,
In, the adjacent solarization air cap 8 in the same side is spaced 150mm, and the adjacent solarization air cap 8 of heteropleural is spaced 75mm, as shown in Figure 4.Aeration supervisor 2
Caliber 150mm, 4 caliber 32.5mm of aeration branch pipe, 8 aperture 1mm of solarization air cap.
Aeration supervisor 4 is connected to appendix 6, one end air blower 5 of appendix 6, and appendix 6 is located at integrated cylinder mould 1
A side on, provide gas for aeration tube, realize that gas-water ratio is the Air Exposure of 1:3.
(3) wetland plant area emergent aquactic plant has reed, cattail, yellow flag and Monochoria korsakowii, is 1:1:1:2 by arrangement areas ratio
Plantation, emergent aquactic plant plantation bandwidth reach 5m.Biological floating bed monomer area is 12m2, the gross area reaches 600m2, biological floating bed
Surrounding collocation Festuca Arundinacea turf, plantation width are 0.5m.
Using a kind of Biological Pretreatment system and method suitable for river type water head site water body of the invention, by 3
The tracking sampling of the moon and water analysis, obtain the preprocess method to the removal effect of micropollutants in source water, see the table below:
| Serial number | Contamination index | Water inlet | Water outlet | Average removal rate |
| 1 | Suspended matter | 20.08mg/L | 7.82mg/L | 61.06% |
| 2 | Ammonia nitrogen | 0.71mg/L | 0.22mg/L | 69.01% |
| 3 | Total phosphorus | 0.15mg/L | 0.08mg/L | 46.67% |
| 4 | CODcr | 10.25mg/L | 5.58mg/L | 45.56% |
| 5 | BOD5 | 3.86mg/L | 3.26mg/L | 15.54% |
| 6 | BOD/CODcr | 0.38 | 0.58 | / |
By Biao Ke get, the present embodiment reaches ground to the main water quality indicator such as source water Water quality ammonia nitrogen, total phosphorus, COD, BOD
Table water Group III standard.Also water quality is obviously improved biodegradability index BOD/CODcr than before, rises to 0.58 left side by 0.38
It is right.
Embodiment 3
The present invention is further described below combined with specific embodiments below.
A kind of Biological Pretreatment system and method suitable for river type water head site water body, the present embodiment choose plain river network
The river that the regional depth of water is 1.5m, river width is 100m carries out the Biological Pretreatment of water body, as shown in Figure 1, raw water is followed by heavy
Shallow lake area, packing area and wetland plant area, arrow direction indicates water (flow) direction in figure.Wherein:
(1) twice water fender is arranged in settling zone, and first of water fender along water (flow) direction exceeds river ordinary water level
River bed is sunk in 500mm, bottom, and first of water fender is at the above 500mm in bottom every one of circular hole of 300mm, aperture 430mm.
The second water fender top of Parallel to the flow direction is located at 500mm under river ordinary water level, and the residence time of settling zone is 60min,
5 water volume flow rates are surveyed with current meter, the average value for acquiring water volume flow rate is 0.056m/s, then the length L of settling zone is set as
201.6m。
(2) packing area is using gear type fluidized packing material, and specific gravity is 0.95 × 10 when non-biofilm3kg/m3, filler shape
SizeSpecific surface area 300m2/m3, porosity 94%, weight accumulation 65kg/m3.As shown in Fig. 2, one
Change cylinder mould 1 is regular hexahedron, and length and width are 3000mm, a height of 1000mm, and integrated 1 lower end of cylinder mould is supported by stabilizer blade 3, bottom
Apart from river bed 500mm, packaged equipment is made by the way of prefabrication, after by crane hanging component.
Cylinder mould external frame is formed by connecting by coating steel pipe rod thread, fixed Buddhist nun's stainless steel crimped wire mesh 7, net outside frame
Cage top lid and cylinder mould main body are connected using steel wire binding, 7 string diameter 3mm of stainless steel crimped wire mesh, 7 aperture of stainless steel crimped wire mesh
28.28mm.(every row 5, totally 4 row) is staggered installation of in river (the second row top and the first row as shown in figure 3,20 cylinder moulds
End flushes, and the third line top is flushed with the second row end, and fourth line top is flushed with the third line end), filler in cylinder mould
Filling rate is 42.5%.
Aeration supervisor 2 fits on each integrated cylinder mould 1, is laid with along a side and bottom surface central axes, aeration supervisor 2
Total 6m；And aeration branch pipe 4 passes through the aeration supervisor 2 of 1 bottom surface of integrated cylinder mould, is laid side by side, aeration branch pipe is arranged side by side 5,
Spacing 500mm is laid with direction perpendicular to aeration supervisor 2, and every aeration branch pipe 4 is 15m long.
Aeration branch pipe 4 offers two rows of solarization air caps 8, and the company of every row's solarization air cap 8 towards the side inside integrated cylinder mould 1
The central axes of line and aeration branch pipe 4 are formed by two faces, and 30 ° of angle is all formed with axial plane in the level of aeration branch pipe 4,
In, the adjacent solarization air cap 8 in the same side is spaced 150mm, and the adjacent solarization air cap 8 of heteropleural is spaced 75mm, as shown in Figure 4.Aeration supervisor 2
Caliber 200mm, 4 caliber 40mm of aeration branch pipe, 8 aperture 2mm of solarization air cap.
Aeration supervisor 4 is connected to appendix 6, one end air blower 5 of appendix 6, and appendix 6 is located at integrated cylinder mould 1
A side on, provide gas for aeration tube, realize that gas-water ratio is the Air Exposure of 1:4.
(3) wetland plant area emergent aquactic plant has reed, cattail, yellow flag and Monochoria korsakowii, is 1:1:1:2 by arrangement areas ratio
Plantation, emergent aquactic plant plantation bandwidth reach 12m.Biological floating bed monomer area is 24m2, the gross area reaches 1200m2, ecological floating
Bed surrounding collocation Festuca Arundinacea turf, plantation width is 0.5m.
Using a kind of Biological Pretreatment system and method suitable for river type water head site water body of the invention, by 3
The tracking sampling of the moon and water analysis, obtain the preprocess method to the removal effect of micropollutants in source water, see the table below:
By Biao Ke get, the present embodiment reaches ground to the main water quality indicator such as source water Water quality ammonia nitrogen, total phosphorus, COD, BOD
Table water Group III standard.Also water quality is obviously improved biodegradability index BOD/CODcr than before, rises to 0.61 left side by 0.44
It is right.
Embodiment 4
The present invention is further described below combined with specific embodiments below.
A kind of Biological Pretreatment system and method suitable for river type water head site water body, the present embodiment choose plain river network
The river that the regional depth of water is 5m, river width is 100m carries out the Biological Pretreatment of water body, as shown in Figure 1, raw water is followed by precipitating
Area, packing area and wetland plant area, arrow direction indicates water (flow) direction in figure.Wherein:
(1) twice water fender is arranged in settling zone, and first of water fender along water (flow) direction exceeds river ordinary water level
River bed is sunk in 500mm, bottom, and first of water fender opens one of slot every 300mm at the above 500mm in bottom, and hole is long
500mm × wide 500mm.The second water fender top of Parallel to the flow direction is located at 500mm under river ordinary water level, and settling zone stops
Staying the time is 60min, surveys 5 water volume flow rates with current meter, and the average value for acquiring water volume flow rate is 0.2m/s, then the length of settling zone
Degree L is set as 720m.
(2) packing area is using gear type fluidized packing material, and specific gravity is 0.96 × 10 when non-biofilm3kg/m3, filler shape
SizeSpecific surface area 300m2/m3, porosity 94%, weight accumulation 65kg/m3.As shown in Fig. 2, one
Change cylinder mould 1 is regular hexahedron, and length, width and height are 3000mm, and integrated 1 lower end of cylinder mould is supported by stabilizer blade 3, distance from bottom river bed
500mm makes packaged equipment by the way of prefabrication, after by crane hanging component.
Cylinder mould external frame is welded by coating steel pipe, fixed Buddhist nun's stainless steel crimped wire mesh 7 outside frame, cylinder mould top cover with
Cylinder mould main body is using steel wire binding connection, 7 string diameter 2mm of stainless steel crimped wire mesh, 7 aperture 28.28mm of stainless steel crimped wire mesh.Such as Fig. 3
It is shown, 64 cylinder moulds (every row 8, totally 8 row) be staggered installation of in river (the second row top is flushed with the first row middle position,
The third line top is flushed with the second row middle position, and fourth line top is flushed with the third line middle position, fifth line top and the
Four row middle positions flush, and the 6th row top is flushed with fifth line middle position, and the 7th row top is prepared with the 6th row interposition
Flat, the 8th row top is flushed with the 7th row middle position), the filling rate of filler is 42.5% in cylinder mould.
Aeration supervisor 2 fits on each integrated cylinder mould 1, is laid with along a side and bottom surface central axes, aeration supervisor 2
Total 6m；And aeration branch pipe 4 passes through the aeration supervisor 2 of 1 bottom surface of integrated cylinder mould, is laid side by side, aeration branch pipe is arranged side by side 5,
Spacing 500mm is laid with direction perpendicular to aeration supervisor 2, and every aeration branch pipe 4 is 15m long.
Aeration branch pipe 4 offers two rows of solarization air caps 8, and the company of every row's solarization air cap 8 towards the side inside integrated cylinder mould 1
The central axes of line and aeration branch pipe 4 are formed by two faces, and 38 ° of angle is all formed with axial plane in the level of aeration branch pipe 4,
In, the adjacent solarization air cap 8 in the same side is spaced 150mm, and the adjacent solarization air cap 8 of heteropleural is spaced 75mm, as shown in Figure 4.Aeration supervisor 2
Caliber 200mm, 4 caliber 40mm of aeration branch pipe, 8 aperture 3mm of solarization air cap.
Aeration supervisor 4 is connected to appendix 6, one end air blower 5 of appendix 6, and appendix 6 is located at integrated cylinder mould 1
A side on, provide gas for aeration tube, realize that gas-water ratio is the Air Exposure of 1:5.
(3) wetland plant area emergent aquactic plant has reed, cattail, yellow flag and Monochoria korsakowii, is 1:1:1:2 by arrangement areas ratio
Plantation, emergent aquactic plant plantation bandwidth reach 12m.Biological floating bed monomer area is 24m2, the gross area reaches 960m2, biological floating bed
Surrounding collocation Festuca Arundinacea turf, plantation width are 0.5m.
Using a kind of Biological Pretreatment system and method suitable for river type water head site water body of the invention, by 3
The tracking sampling of the moon and water analysis, obtain the preprocess method to the removal effect of micropollutants in source water, see the table below:
| Serial number | Contamination index | It intakes (mg/L) | It is discharged (mg/L) | Average removal rate (%) |
| 1 | Suspended matter | 14.68 | 3.68 | 75.94 |
| 2 | Ammonia nitrogen | 1.32 | 0.5 | 62.12 |
| 3 | Total phosphorus | 0.12 | 0.08 | 33.33 |
| 4 | CODcr | 10.59 | 5.61 | 47.03 |
| 5 | BOD5 | 3.62 | 2.88 | 20.44 |
| 6 | BOD/CODcr | 0.34 | 0.51 | / |
By Biao Ke get, the present embodiment reaches ground to the main water quality indicator such as source water Water quality ammonia nitrogen, total phosphorus, COD, BOD
Table water Group III standard.Also water quality is obviously improved biodegradability index BOD/CODcr than before, rises to 0.541 left side by 0.34
It is right.
Comparative example 1
A kind of Biological Pretreatment system and method suitable for river type water head site water body, the present embodiment choose plain river network
The river that the regional depth of water is 3m, river width is 50m carries out the Biological Pretreatment of water body, as shown in Figure 1, raw water is followed by precipitating
Area, packing area and wetland plant area, arrow direction indicates water (flow) direction in figure.Wherein:
(1) settling zone: introducing settling zone for river water source, is precipitated under the action of natural gravity, realizes preliminary
Mud-water separation.
(2) packing area: using gear type fluidized packing material, specific gravity is 0.97 × 10 when non-biofilm3kg/m3, filler shape
SizeSpecific surface area 201m2/m3, porosity 94%, weight accumulation 65kg/m3.As shown in Fig. 2, integrated
Cylinder mould 1 is regular hexahedron, and length, width and height are 2000mm, and integrated 1 lower end of cylinder mould is supported by stabilizer blade 3, distance from bottom river bed
300mm makes packaged equipment by the way of prefabrication, after by crane hanging component.
Cylinder mould external frame is welded by coating steel pipe, fixed Buddhist nun's stainless steel crimped wire mesh 7 outside frame, cylinder mould top cover with
Cylinder mould main body is using steel wire binding connection, stainless steel crimped wire mesh 7 string diameter 2mm, the aperture 35.35mm of stainless steel crimped wire mesh 7.It places
16 cylinder moulds (every row 4, totally 4 row) are staggered installation of in river that (the second row top is flushed with the first row end, the third line top
Flushed with the second row end, fourth line top is flushed with the third line end), the filling rate of filler is 50% in cylinder mould.
Aeration supervisor 2 fits on each integrated cylinder mould 1, is laid with along a side and bottom surface central axes, aeration supervisor 2
Total 4m；And aeration branch pipe 4 passes through the aeration supervisor 2 of 1 bottom surface of integrated cylinder mould, is laid side by side, aeration branch pipe is arranged side by side 4,
Spacing 500mm is laid with direction perpendicular to aeration supervisor 2, and every aeration branch pipe 4 is 8m long.
Aeration branch pipe 4 offers two rows of solarization air caps 8, and the company of every row's solarization air cap 8 towards the side inside integrated cylinder mould 1
The central axes of line and aeration branch pipe 4 are formed by two faces, and 45 ° of angle is all formed with axial plane in the level of aeration branch pipe 4,
In, the adjacent solarization air cap 8 in the same side is spaced 150mm, and the adjacent solarization air cap 8 of heteropleural is spaced 75mm, as shown in Figure 4.Aeration supervisor 2
Caliber 100mm, 4 caliber 25mm of aeration branch pipe, 8 aperture 2.5mm of solarization air cap.
Aeration supervisor 4 is connected to appendix 6, one end air blower 5 of appendix 6, and appendix 6 is located at integrated cylinder mould 1
A side on, provide gas for aeration tube, realize that gas-water ratio is the Air Exposure of 1:2.
(3) wetland plant area: emergent aquactic plant has reed, cattail, yellow flag and Monochoria korsakowii, is 1:1:1 by arrangement areas ratio:
2 plantations, emergent aquactic plant plantation bandwidth reach 12m.Biological floating bed monomer area is 24m2, the gross area reaches 600m2, ecological floating
Bed surrounding collocation Festuca Arundinacea turf, plantation width is 0.5m.
Using a kind of Biological Pretreatment system and method suitable for river type water head site water body of the invention, by 3
The tracking sampling of the moon and water analysis, obtain the preprocess method to the removal effect of micropollutants in source water, see the table below:
| Serial number | Contamination index | Water inlet | Water outlet | Average removal rate |
| 1 | Suspended matter | 13.03mg/L | 8.08mg/L | 37.99% |
| 2 | Ammonia nitrogen | 0.50mg/L | 0.10mg/L | 80.00% |
| 3 | Total phosphorus | 0.16mg/L | 0.08mg/L | 50.00% |
| 4 | CODcr | 6.51mg/L | 3.12mg/L | 52.07% |
| 5 | BOD5 | 3.22mg/L | 1.58mg/L | 50.93% |
| 6 | BOD/CODcr | 0.49 | 0.51 | / |
By Biao Ke get, the present embodiment reaches ground to the main water quality indicator such as source water Water quality ammonia nitrogen, total phosphorus, COD, BOD
Table water Group III standard.Also water quality is obviously improved biodegradability index BOD/CODcr than before, rises to 0.51 left side by 0.49
The right side, but the reinforced deposition method relative to example 1, the general precipitation method only have 37.99% to the removal rate of suspended matter, removal rate compared with
It is low.
Comparative example 2
According to data check, the multi-stage ecological purification technique case study on implementation of a drinking water resource, raw water is taken out by water pump
Enter primary clarifier, biochemistry pool is entered after precipitating, biochemistry pool depth 2.5m divides 3 grades, and filling is in pond with composite filling.Biochemical water
The power residence time is 3 days.Raw water, by the metabolism of the biomembrane of apposition growth on filler, goes to remove water in biochemistry pool
Middle organic pollutant, ammonia nitrogen and algae.Biochemistry pool water outlet enters artificial wet land system, and artificial swamp is divided into two-stage --- downstream tank
With uplink pond, pass through the interaction of undercurrent mode.Thickness of wall body is 240mm.In order to prevent raw water leakage or underground water enter for
Processing system has an impact, and is laid with the antiseepage film of 0.8mm thickness in wetland bed bottom.Artificial swamp hydraulic loading 0.5m3/m2·
d；Length-width ratio is 2:1；Base slope 0.2%.Artificial swamp realizes water by the physics and biological effect of plant, filler and microorganism
Purification process.Wetland effluent enters regulating reservoir.The residence time of regulating reservoir is 7 days.Side slope ratio is 1:2, is applied in side slope
If eco-concrete ball is as shore protection.Emergent aquactic plant can be planted between eco-concrete ball simultaneously.The hole of eco-concrete
The microorganism of interior growth can also further remove the pollutant in water body, be that Reservoir Water Quality meets III class water quality standard of surface water, water
Water in library can do water supply plant water head site.
Relative to this case, although the effects of purification quality obtained is not much different, this case engineering amount of reform compared with
Greatly, and simultaneously biochemical process --- biomembrane process, is affected by the external world in field, may will affect water quality reaching standard.
Claims (10)
1. a kind of Biological Pretreatment system suitable for river type water head site water body, it is characterised in that: including along water (flow) direction
Three sections of settling zone, packing area and wetland plant area being sequentially arranged；Twice water blocking is arranged in Transverse to the flow direction in the settling zone
Plate exceeds 200~500mm of river ordinary water level along first of water fender top of water (flow) direction, and river bed is sunk in bottom, in river bed
Laterally aperture at spacing intervals above 200~500mm；It is normal that the second water fender top of Parallel to the flow direction is located at river
River bed is sunk in 200~500mm under water level, bottom；Realize that upland water enters settling zone from bottom after water fender setting, from upper layer
Outflow settling zone is sequentially arranged along water (flow) direction.
2. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 1, feature exist
In: first of water fender more than river bed at 200~500mm laterally every 300mm aperture, institute's perforated area 400~
2500cm2；It is related to river mean flow rate and settling zone residence time to precipitate section length, i.e. length L=60 × residence time T
(min) × water volume flow rate V (m/s), wherein the residence time is 30min~60min, and water volume flow rate takes repeatedly actual measurement average value.
3. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 1, feature exist
In: the packing area is made of floating stuffing, integrated cylinder mould (1) and aeration tube.
4. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 3, feature exist
In: the floating stuffing is gear type fluidized packing material, is filled in integrated cylinder mould (1), and filling rate is 35%~50%.
5. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 3, feature exist
In: integrated cylinder mould (1) frame is welded by coating steel pipe or rod thread connects, and fixed stainless steel rolls outside frame
Flower net (7), forms the closed hexahedron filler cylinder mould that there is crimped wire mesh in six faces, and cylinder mould top cover is tied up with cylinder mould main body using steel wire
Fixed connection, stainless steel crimped wire mesh (7) aperture are 0.707 × filler diameter
6. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 3, feature exist
In: the aeration tube installation fits in integrated cylinder mould (1) outside, is made of aeration supervisor (2) and aeration branch pipe (4)；It exposes
Gas is responsible for the caliber D of (2) between 100mm~200mm, arranges along (1) side of integrated cylinder mould and bottom surface central axes；It exposes
For gas branch pipe (4) caliber d between 25mm~40mm, aeration branch pipe (4) is set to the bottom of integrated cylinder mould (1), arranged direction
(2) are responsible for perpendicular to the aeration of bottom central axes, spacing 500mm between aeration branch pipe (4) is all communicated with aeration supervisor (2)；It exposes
Gas branch pipe (4) offers two rows of solarization air caps (8) towards the internal side of integrated cylinder mould (1), and the line of every row's solarization air cap (8)
Two faces are formed by with the central axes of aeration branch pipe (4), all form the angle of α with axial plane in the level of aeration branch pipe (4), and
30 °≤α≤45 °, wherein the adjacent solarization air cap in the same side (8) is spaced 150mm, and the adjacent solarization air cap of heteropleural (8) is spaced 75mm,
The aperture of solarization air cap (8) is 1~3mm.
7. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 3 or 6 any one
System, it is characterised in that: the aeration quantity size of the aeration tube and the ratio (abbreviation gas-water ratio) of processing water are in 1:(2~5)
Between.
8. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 1, it is characterised in that:
The wetland plant area mainly by emergent aquactic plant and it is biological floating bed form, emergent aquactic plant plants width and is not less than 5m, and ecology is floating
Sheet bulk area is not less than 12m2。
9. a kind of Biological Pretreatment system suitable for river type water head site water body according to claim 1, it is characterised in that:
River type water head site normal depth of flow is 1.5m~5m, and river width is 50m~100m.
10. a kind of biologic pretreatment method suitable for river type water head site water body, it is characterised in that: step are as follows:
(1) in settling zone Transverse to the flow direction be arranged 2 water fenders, upland water from first of water fender lower part into settling zone,
Flow out settling zone from second water fender top, the water body in settling zone since water flow is hindered, silt that water body carries and other
Large particle can settle in settling zone, reduce the pollutional load for entering packing area water body；
(2) water body for flowing out settling zone enters packing area, in the case where being aerated the double action with water body itself fluidised form, packing area water body
Fluidized state reaches most preferably, and filler is flowed up and down and mutually collided, and improves the biodegradability of water body, realize ammonia nitrogen in water body,
Suspended particulate substance, total phosphorus and organic matter effectively remove；
(3) enter wetland plant area behind water body outflow packing area, since the biodegradability of water body is greatly improved, in water body
Nitrogen, phosphorus and organic matter are easier to be absorbed by plants, convert, to realize the removal of polluter.
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