CN106698664A - Water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment - Google Patents

Water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment Download PDF

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Publication number
CN106698664A
CN106698664A CN201710093686.7A CN201710093686A CN106698664A CN 106698664 A CN106698664 A CN 106698664A CN 201710093686 A CN201710093686 A CN 201710093686A CN 106698664 A CN106698664 A CN 106698664A
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China
Prior art keywords
water
gallery
water body
monomer
packing area
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CN201710093686.7A
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CN106698664B (en
Inventor
厉炯慧
冯华军
项林
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Zhejiang Yuteng Bainuo Environment Protection Technology Co Ltd
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Zhejiang Yuteng Bainuo Environment Protection Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment
    • 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
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40—Protecting water resources
    • Y02A20/402—River restoration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention discloses a water body purification gallery and technology used for river channel water body ammonia nitrogen in situ treatment. The gallery comprises at least two stages of gallery monomers which are connected in series and also comprises a nano aeration machine and a speed control device arranged at a water inlet end of a primary gallery monomer; each gallery monomer comprises a floating frame body, a screen frame fixed on the floating frame body and a water distribution pipe arranged in a nitrification filler region, wherein the floating frame body comprises a floating pipe floating on water, a plurality of fixed links driven in a river bottom along the floating pipe and plastic pipes which sheathe the corresponding fixed links in a penetrating way; the interior of the screen frame is sequentially divided into a nitrification filler region, a transition region and a denitrification filler region along the water flow direction by virtue of a water flowing screen; and the water distribution pipe is externally connected with the nano aeration machine. The water body purification gallery and technology can be used for solving the problems that an ammonia nitrogen removal device in an existing river channel restoration technology occupies a large area, front-end investment is high and late operating maintenance is complicated.

Description

A kind of water body purification gallery and technique for river water body ammonia nitrogen in-situ treatment
Technical field
The present invention relates to river regulation technical field, and in particular to a kind of water body for river water body ammonia nitrogen in-situ treatment Purification gallery and technique.
Background technology
Attention with China to river regulation, domestic water body discharge standard is increasingly improved, and ammonia nitrogen is river regulation one Important contamination index.Ammonia nitrogen is mainly shown as free ammonia (NH in water body3) and ammonium ion (NH4 +).Ammonia nitrogen is sought as water body Material is supported, concentration is high, body eutrophication is serious, reduce dissolved oxygen in river course；Ammonia nitrogen concentration rises, free ammonia (NH3) and ammonia Ion (NH4 +) biological for the fish etc. of water body produce toxic action；Ammonia nitrogen is made by the nitrification of nitrite bacteria, nitrobacteria With cultured water and nitrate nitrogen is produced, corresponding salts substances are formed, into water source, can do harm to huamn body.
The major technique of domestic removal ammonia nitrogen has phytoremediation technology, microorganism remediation technology, Biomembran repair skill at present Art.Biomembrance process is considered as that cost performance highest removes method for removing ammonia nitrogen, is also with most in river course renovation technique.It is biological Membrane technology is used as filler by large specific surface area material, and aggregation microorganism forms biomembrane, is similar to small-sized contact-oxidation pool, Carry out the purified treatment of the organic pollutions such as river course ammonia nitrogen.
For example, Authorization Notice No. discloses a kind of polluted river channel water body purification mould for the Chinese invention patent of 102219339B Block system and its application.Polluted river channel water body purification modularization it is main by biological grid modules, elastic filler adsorbent bed module, Microbial ecological decomposes outstanding bed module and the outstanding bed module composition of submerged plant ecological purification；Biological grid modules by framework and Submerged plant, floating plant, emergent aquactic plant composition, elastic filler module is by frame structure and hydrophilic elastic filler, hydrophobicity Elastic filler is constituted, and microorganism bed module is made up of frame structure, microporous aeration device, microorganism, submerged plant clean-up bed mould Block is made up of submerged plant population and bed body.
But it is big that prior art has occupation area of equipment, and up-front investment is high, the problems such as later stage operation maintenance is cumbersome.
The content of the invention
The existing waterway recovery technique of removal device for to(for) ammonia nitrogen, occupation area of equipment is big, and up-front investment is high, the later stage The problems such as operation maintenance is cumbersome, thus propose ammonia nitrogen removal in situ work well, a kind of practical water with denitrification functions Body purifies gallery.
A kind of water body purification gallery for river water body ammonia nitrogen in-situ treatment, including at least gallery list of two-stage series connection Body, also including nanometer aeration machine and the speed-controlling device located at one-level gallery monomer water inlet end；The gallery monomer includes：
Floating framework, the floating framework includes the float tube bubbled through the water column, some fix bars that river bed is squeezed into along float tube and right The plastic tube in fix bar should be set on；
Screen frame, the water entering surface of the screen frame and go out the water surface be the network of rivers, bottom surface and along water body flow to two sides for hang Fluid-tight fine mesh wire after film, the top margin of the screen frame is sutured with float tube suture, side with corresponding plastic tube, in the screen frame Nitrification packing area, transition region and denitrification packing area are divided into successively by crossing the network of rivers along water (flow) direction；
And the water distributor in nitrification packing area, the external nanometer aeration machine of the water distributor.
Float tube floats on the river course water surface, and end plug Seal treatment, fix bar uses galvanized pipe, is arranged along float tube, plating 40~60cm of river bed is squeezed into zinc pipe lower end, and galvanized pipe upper sleeve through PE plastic tubes, the top margin of screen frame is sewn in float tube, side with modeling Expects pipe contact position sutures with plastic tube, integrally floats in river water body, can be floated with SEA LEVEL VARIATION, and it is carried out by galvanized pipe It is spacing.
River water body by after speed-controlling device rate controlling enter gallery in, it is ensured that in gallery water volume flow rate 0.01m/s~ In 0.03m/s, nitrification zone and denitrification zone are flowed through repeatedly in gallery, intercycle carries out digestion reaction and anti-nitration reaction, lead to Nanometer aeration machine and water distributor are crossed to oxygenation in nitrification zone, control control nitrification packing area dissolved oxygen is in 3~6mg/L, transition region 0.5~3mg/L of dissolved oxygen, denitrification packing area 0.1~0.5mg/L of dissolved oxygen, purified in situ is carried out to river water body, whole place Reason device floats on bed mud top, and aeration is separated with bed mud, can avoid the secondary pollution of pollutant in bed mud.
Preferably, the speed-controlling device is at one-level gallery monomer 0~20cm of front end.
For speed-controlling device, a kind of preferred scheme, the speed-controlling device is impeller, and is gone out apart from final stage gallery monomer The guiding device for making gallery water outlet form backflow is set at 3~5 meters of the water surface.
It is further preferred that the guiding device includes：
Squeeze into the galvanized pipe of river bed；
Correspondence is set on the PE pipes on the galvanized pipe；
And be sewn on the PE pipes and fluid-tight fine mesh wire after biofilm, the wire side of the fine mesh wire is towards final stage gallery list The water surface that goes out of body is set.
It is further preferred that the wire side of the fine mesh wire include the first guide face and the second guide face, the first guide face with Second guide face is mutually 120 °~150 ° angles, and angle opening is towards the delivery port of final stage gallery monomer.
When gallery is in non-mobile water body, it is 0.3kW/m that power is placed at gallery device 0~20cm of front end2.h~ 0.4kW/m2.h impeller, can control water volume flow rate is 0.01m/s~0.03m/s.Impeller is bound using pull rope, anchoring It is fixed；Air deflector is set, and galvanized pipe is fixed, overcoat PE pipes, with 100~150 mesh fine mesh wires and outer tube at 3~5 meters of gallery end Suture, air deflector angle is 120 °~150 °, and return flow line is formed with river course revetment.
Another kind as speed-controlling device is preferred, and the speed-controlling device is speed-limiting device, and the speed-limiting device is baffle door, During the baffle door is inserted vertically into river water body, the vertical side hinge of one of them vertical side and one-level gallery monomer water entering surface Connect, another vertical side position in the inlet area of one-level gallery monomer front end is adjustable.
Further, the baffle door is set to two symmetrical fans, respectively with the two of one-level gallery monomer water entering surface Individual vertical side is hinged.
Further, with the water entering surface of one-level gallery monomer as baseline described in baffle door the anglec of rotation for 60 °~ 90°.Controllable water volume flow rate is 0.01m/s~0.03m/s.
It is further preferred that the baffle door is sutured using 100~150 mesh fine mesh wires with PE plastic tubes, PE plastic tubes are worn It is enclosed within galvanized pipe, galvanized pipe squeezes into river bed, and galvanized pipe position is adjustable.
The galvanized pipe of baffle door can be moved and fixed as requested, be the tune for further improving the baffle door anglec of rotation Section precision, it is preferable that river bed in inlet area sets the base consistent with the free side oscillator arc of baffle door, on base between Every the jack that setting matches with the galvanized pipe of baffle door.
Spacing between adjacent receptacle is set according to baffle door minimal adjustment angle, is 10 ° preferably with minimal adjustment angle It is advisable.
Preferably, the screen frame top surface is 40~50 mesh fine mesh wires.
The fine mesh wire of screen frame top surface is used to prevent filler from overflowing, and 100~150 mesh fine mesh wires, biofilm are selected in side and bottom surface It is waterproof afterwards, make to form Seal treatment space in gallery.
The network of rivers of crossing is fishing net, it is ensured that prevent filler from being flowed with current while current are penetrating.
Preferably, the volumetric ratio of the nitrification packing area, transition region and denitrification packing area is 7:(1~1.5)：4.Control Nitrify packing area, transition region and HRT (hydraulic detention time) is 7 in denitrification packing area:1:4.
Preferably, 10000~20000m of specific surface area is filled in the nitrification packing area2/m3, 20~25g/cm of density3's Polyurethane filler, filling rate is 30%~50% in nitrification packing area；In denitrification packing area fill specific surface area 60000~ 90000m2/m3, density 0.3-0.4g/cm3Bamboo ball, in denitrification packing area filling rate be 10%~30%.
Further, the polyurethane filler is 5 × 5 × 5cm polyurethane fillers, is uniformly distributed in nitrification zone；It is described A diameter of 3~4cm of bamboo ball；Further, bamboo ball is entered using 3d leachates before starch/polycaprolactone (PCL) blend Row dipping pretreatment, biochemical can be improved.
Bamboo ball is uniformly thrown after mixing with sludge and is spread in denitrification zone, and the filling rate in the denitrification zone is contained and is mixed into Sludge, it is preferable that the mixing quality ratio of the bamboo ball and sludge is 2~3:1.
Air-water mixture, the nanometer foaming are passed through to gallery with specific water distributor by nano bubble machine in the present invention Bubble produced by machine carries negative electrical charge, can produce adsorption effect to water body particulate, can separate suspension；Oxygen transfer rate Height, dissolved oxygen maintains higher level, greatly speeds up the breeding metabolism of nitrification packing microbial in gallery, accelerates dividing for pollutant Solution.
The present invention chooses nitrification filler polyurethane for macropore is combined with nanoscale hole：Macropore keeps good gas-liquid-solid Contact conditions, nano bubble can be rested in macropore for a long time；With hydrophilic actives such as amino carboxyl, epoxy radicals in micropore Group, can form ionic bond or covalent bond with the active group in microorganism peptide bond, be adapted to nitrifying microorganisms biofilm.
The denitrification filler that the present invention chooses is bamboo ball filler, and 3d is leached before collocation starch/polycaprolactone (PCL) blend Liquid is pre-processed, for removing the nitrate in low carbon-nitrogen ratio sewage, and with toggle speed is fast, the spy such as denitrification rate is high Point.
Further, the network of rivers was used to separate at interval of 2~3m in the nitrification packing area and denitrification packing area.Make Filler preferably keeps being uniformly distributed.Further, cross the network of rivers and use fishing net.
Preferably, the water distributor includes with nanometer aeration machine is connected water distribution supervisor and be responsible for upper and corresponding located at water distribution The water distribution branch pipe in nitrification packing area is stretched into, it is parallel with one another between the water distribution supervisor of each gallery monomer.
Spacing in nitrification packing area between adjacent portions water distribution branch pipe is 1~2m.
In packing area there is nitration reaction in nitrifying microorganisms inside, consume a part of dissolved oxygen, be reacted by packing area River enters transition region, and the biomembrane that polyurethane is attached in transition region further consumes remaining dissolved oxygen, makes dissolved oxygen concentration Reach Denitrification Conditions.So as to control nitrification packing area dissolved oxygen in 3~6mg/L, 0.5~3mg/L of transition region dissolved oxygen, anti-nitre Change 0.1~0.5mg/L of packing area dissolved oxygen.
Further, the water distribution branch pipe is located at nitrification filler bottom.
Nanometer aeration machine is commercially available prod, and the nano bubble particle diameter 60%~80% of generation is real between 200nm-400nm Border surveys the water body zeta potential rich in the nano bubble and is up to -20~-40mV, and it is (3.5~4) to control gas-water ratio：1.
Nanometer aeration machine sets supporting elevator pump and water inlet pipe, controls polyurethane packing area dissolved oxygen in 3~6mg/L, Transition region 0.5~3mg/L of dissolved oxygen, 0.1~0.5mg/L of bamboo ball packing area dissolved oxygen.
Preferably, it is monomer series-connected that 3~5 grades of gallerys are set, button between direct, screen frame between the float tube of adjacent gallery monomer Connection.
The present invention also provides a kind of technique that river water body ammonia nitrogen in-situ treatment is carried out using the water body purification gallery, wraps Include following steps：
By speed-controlling device control into the river water body flow velocity in the water body purification gallery in 0.01m/s~0.03m/s It is interior, into the river water body in the water body purification gallery repeatedly by nitrification packing area and denitrification packing area, it is repeated Nitrification processing and denitrification are processed, and the water body after purified in situ is discharged from final stage gallery monomer water side；
It is aerated in gallery monomer from nanometer aeration machine and water distributor in processing procedure, every grade of gallery monomer nitrification of control is filled out Material area 3~6mg/L of dissolved oxygen, transition region 0.5~3mg/L of dissolved oxygen, 0.1~0.5mg/L of denitrification packing area dissolved oxygen.
Preferably, it is (3.5~4) that gas-water ratio is controlled in nanometer aeration machine：1, nano bubble particle diameter 60%~80% exists Between 200nm-400nm.
Compared with prior art, the present invention just has the advantages that：
(1) nano bubble oxygen supply, dissolved oxygen effect is good, and aeration is separated with bed mud, can avoid the secondary dirt of pollutant in bed mud Dye；
(2) total nitrogen that the present apparatus can quickly, efficiently, low energy be reduced in river is implemented；
(3) the unique fine mesh wire of the present invention, float tube, fixing pipe design, adapt to SEA LEVEL VARIATION；
(4) inner stuffing of the present invention etc. is respectively positioned under water level, and water surface landscape is not influenceed.
(5) present invention is set in the case of hydrostatic by air deflector, and water body backflow in part can improve water body removal total nitrogen Rate.
Brief description of the drawings
Fig. 1 is overlooking structure figure of the present invention.
Fig. 2 is sectional view of the present invention perpendicular to water (flow) direction.
Fig. 3 is guiding device structural representation.
Fig. 4 is speed-limiting device top view.
Reference is as follows shown in figure：
1- nanometer aeration machine 2- elevator pump 3- outlet pipes
4- water distributions are responsible for 5- guiding device 6- screen frames
7- float tube 8- galvanized pipe 9- water distribution branch pipes
10- water entering surface 11- impeller 12- plastic tubes
13- button 14- baffle door 15- cement bases
51- the first guide face the second guide faces of 52-
Specific embodiment
As shown in Figure 1 to 4, a kind of water body purification gallery, is formed by least two-stage gallery is monomer series-connected, each gallery list The structure of body includes floating framework, screen frame, water distributor and filler.
Floating framework includes two float tubes 7 arranged along water (flow) direction, and two float tubes are arranged parallel to, and one is set along float tube Row squeezes into the galvanized pipe 8 of river bed, and one section of plastic tube 12 is arranged outside every galvanized pipe, and screen frame 6 is suspended in urban river water by floating framework In body, screen frame by water entering surface 10, go out the water surface, bottom surface, top surface and two sides along water (flow) direction and constitute, water entering surface and water outlet Face is fishing net, and river water body passes in and out gallery by fishing net, and top surface is 40~50 mesh fine mesh wires, bottom surface and two sides along water (flow) direction Face is 100~150 mesh fine mesh wires, screen frame top margin and float tube contact position and float tube suture, side and plastic pipe joint synapsis and plastics Pipe seam is closed.Whole screen frame is floated in water body, and can be fluctuated with SEA LEVEL VARIATION, and galvanized pipe carries out spacing to it.
It is divided into nitrification by fishing net in the screen frame 6 that 100~150 mesh fine mesh wires, 40~50 mesh fine mesh wires and fishing net are surrounded to fill out Material area, transition region and denitrification packing area, Parallel to the flow direction are followed successively by nitrification packing area, transition region and denitrification packing area, nitre The volumetric ratio for changing packing area, transition region and denitrification packing area is 7:(1~1.5)：4.
Fill 10000~20000m of specific surface area in nitrification packing area2/m3, 20~25g/cm of density3Polyurethane filler, nitre It is 30%~50% to change filling rate in packing area, and polyurethane filler size is 5 × 5 × 5cm, and uniform throwing is spread on nitrification packing area It is interior.60000~90000m of specific surface area is filled in denitrification packing area2/m3, density 0.3-0.4g/cm3Bamboo ball, denitrification fills out Filling rate is that 10%~30% (bamboo ball and sludge are with mass ratio 2.5 in material area:1 mixing after put into), bamboo ball a diameter of 3~ 4cm.When gallery monomer is more long, separated using fishing net at interval of 2~3m in nitrification packing area and denitrification packing area.
Water distributor includes water distribution branch pipe 9 and water distribution supervisor 4, and water distribution branch pipe edge is filled out with the perpendicular directional spreding of current in nitrification In material area, water distribution branch pipe is located at corresponding region inner bottom part, and the spacing in nitrification packing area between adjacent water distribution branch pipe is 1~2m, The water inlet end of all of water distribution branch pipe is all connected on water distribution supervisor 4, the going out by threeway and nanometer aeration machine 1 of water distribution supervisor 4 Water pipe 3 is connected, and nanometer aeration machine 1 is arranged on riverbank, and is equipped with elevator pump 2 and water inlet pipe.
3~5 gallerys of setting are monomer series-connected in present embodiment, and each gallery monomer structure is consistent, adjacent gallery monomer Between float tube using pipe joint directly, the end of float tube uses plug Seal treatment, between the fine mesh wire of adjacent gallery monomer Connected using button 13, the water distribution supervisor of all gallery monomers is connected in parallel on the outlet pipe 3 of nano bubble machine by threeway.
When gallery is in non-mobile water body, it is 0.3kW/m that power is placed at gallery device 10~20cm of front end2.h~ 0.4kW/m2.h impeller 11, can control water volume flow rate is 0.01m/s~0.03m/s.Impeller is bound using pull rope, anchor It is fixed on river bed；And the guiding device 5 for making gallery water outlet form backflow is set at 3~5 meters of gallery end, guiding device is as schemed Shown in 3, including the first guide face 51 and the second guide face 52, the first guide face 51 and the second guide face 52 be mutually 120 °~ 150 °, angle opening goes out the water surface towards final stage gallery monomer, and two guide faces use 100~150 mesh fine mesh wires, detailed catalogue Netcom The plastic tube crossed the galvanized pipe for squeezing into river bed and be set on galvanized pipe is fixed, and fine mesh wire is sutured on the plastic tube, entirely Guide face can float with SEA LEVEL VARIATION and form return flow line and the revetment of gallery water inlet side between.
In gallery is in current water, the speed-limiting device that the anglec of rotation is 60 °~90 ° is set in gallery device front end, Controllable water volume flow rate is 0.01m/s~0.03m/s.
The top view of speed-limiting device the two symmetrically arranged baffle doors 14 of fan as shown in figure 4, be made up of, baffle door is vertically inserted In water body, baffle door uses 100~150 mesh fine mesh wires, and one of them vertical sides of two baffle doors is entered with gallery respectively The vertical side of the both sides of the water surface 10 is hinged, that is, be sutured on the plastic tube of junction, and another vertical side is by squeezing into river bed Galvanized pipe and the plastic tube that is set on galvanized pipe be fixed in water body, and at this galvanized pipe position it is adjustable, by regulation Position of galvanized pipe, so as to adjust the aperture between two baffle doors, is baffle door angle of oscillation for convenience of baffle door aperture regulation at this The precise control of degree, cement base 15 is set in bottom of river channel along baffle door swing route, is uniformly opened up and plating on cement base The jack of zinc pipe size matching, spacing between adjacent holes so that baffle door minimum wobble angle for 10 ° be optimal, baffle plate Door is swung in the hole of galvanized pipe insertion cement base of side.
Move according to demand and the fixed galvanized pipe for swinging side, when two baffle doors are parallel with water inlet direction, inflow is most Greatly, when two baffle doors are covered to water entering surface, gallery water inlet is closed, with water entering surface as baseline, baffle door is in 60 °~90 ° Swing, to adjust gallery inflow, so as to adjust flow velocity of the river water body in gallery.
Working method of the present invention is as follows：
By speed-controlling device control into the river water body flow velocity in the water body purification gallery in 0.01m/s~0.03m/s It is interior, into the river water body in the water body purification gallery repeatedly by nitrification packing area and denitrification packing area, it is repeated Nitrification processing and denitrification are processed, and the water body after purified in situ is discharged from final stage gallery monomer water side；
It is aerated in gallery monomer from nanometer aeration machine and water distributor in processing procedure, every grade of gallery monomer nitrification of control is filled out Material area 3~6mg/L of dissolved oxygen, transition region 0.5~3mg/L of dissolved oxygen, 0.1~0.5mg/L of denitrification packing area dissolved oxygen.
Embodiment 1
Experiment section long 100 meters is chosen at Hangzhou Yuhang District Mt. Zheshan port.7.08 kilometers of Mt. Zheshan port river course total length, river surface Wide 15-30 meters, 2.4 meters of present situation water level, water quality is bad V class water body.
Water body purification gallery of the invention is installed in the wide water domain of Mt. Zheshan port, generally 5 grades gallerys series connection, by biofilm into The polyurethane of work(is put into gallery with bamboo ball filler.Gallery integrated suspension is in the bed mud top of pollution river body, and gallery bottom is minimum Locate to be 1 meter under water.
Mt. Zheshan port is current water, and operation flow control valve limits flow velocity as 0.01m/s.Nano bubble machine is opened, is produced Water distributor is sent into aperture for the heavy-oxygen-enriched water of 300mm by outlet pipe, then distributes into other water distribution branch pipes, controls gas-water ratio=4: 1.River goes out water mixed liquid and enters in gallery with nano bubble, by polyurethane aerobic zone, polyurethane transition region, bamboo segment oxygen Area, multistage nitrification-denitrification reaction carries out river water body reparation.
Since apparatus of the present invention are stable, Mt. Zheshan port experiment section contamination index data are determined within every five days.This After invention device is run 30 days.Front and rear treatment status：
Table 1
Table 2
As shown in Table 1, Mt. Zheshan port ammonia nitrogen, total nitrogen etc. are exceeded, belong to bad V class water quality.Table 2 uses above-described embodiment for the river Each achievement data of 1 month after improvement, total nitrogen cuts down 43.3%, and ammonia nitrogen cuts down 44.8%；Ammonia nitrogen index has reached V category It is accurate.With good denitrification effect.
Embodiment 2
Test reach long 60 meters is chosen at Hangzhou Yuhang District Renhe street Ji Jiaba ports.Meter man dam port total length 940m, Width about 10-15m, mean depth 1m, about 10000 square metres of river course water surface area, water quality is bad V class water body.
Water body purification gallery of the invention is installed in meter man dam port wide water domain, overall gallery is 3 grades of series connection, by biofilm Successful polyurethane is put into gallery with bamboo ball filler., in the bed mud top of pollution river body, gallery bottom is most for gallery integrated suspension Lower is 0.8 meter under water.Air deflector is set to 120 °, apart from 3 meters of afterbody gallery.
Meter man Ba Gang is beheaded river, is equipped with a 0.9kW.h impeller.Nano bubble machine is opened, generation aperture is 300mm Heavy-oxygen-enriched water water distributor is sent into by outlet pipe, then distribute into other water distribution branch pipes, control gas-water ratio=3.5：1.River with Nano bubble goes out water mixed liquid and enters in gallery, by polyurethane aerobic zone, polyurethane transition region, bamboo ball anoxic zone, multistage nitre Change-anti-nitration reaction carries out river water body reparation.
Since apparatus of the present invention are stable, once meter man Ba Gang experiments section contamination index data are determined within every five days. Apparatus of the present invention are run 2 months.Front and rear treatment status：
Table 3
Table 4
As shown in Table 3, meter man Ba Gang belongs to bad V class water quality.Table 4 is 2 months each after the river is administered using above-described embodiment Achievement data, total nitrogen cuts down 35.3%, and ammonia nitrogen cuts down 34.5%.Dirty well rupture is cut because meter man dam is littoral, there are a large amount of dirts daily Water enters river body, and water body ammonia nitrogen totally maintains 8~8.5mg/L.
Embodiment 3
In Hangzhou Yuhang District Renhe street, Mu Jia Ba Gang choose test reach long 80 meters.Mu Jia dams port East and West direction is about 759m, about 5-10m (average width about 7m) wide, mean depth 1m, in section, interlude has a section " 7 " font tributary, is about 430m, Width about 15m, mean depth 1m, the total water surface area in river course about 12000m2。
Water body purification gallery is installed in Mu Jia Ba Gang " 7 " font tributary, overall gallery is 4 grades of series connection, by biofilm success Polyurethane and bamboo ball filler be put into gallery.Gallery integrated suspension is in the bed mud top of pollution river body, gallery bottom lowest part It is 1 meter under water.Air deflector sets 150 °, apart from 3.5 meters of afterbody gallery.
Mu Jia Ba Gang are beheaded river, are equipped with a 1.2kW.h impeller.Nano bubble machine is opened, generation aperture is 300mm Heavy-oxygen-enriched water water distributor is sent into by outlet pipe, then distribute into other water distribution branch pipes, control gas-water ratio=3.5:1.River with Nano bubble goes out water mixed liquid and enters in gallery, by polyurethane aerobic zone, polyurethane transition region, bamboo ball anoxic zone, multistage nitre Change-anti-nitration reaction carries out river water body reparation.
Since apparatus of the present invention are stable, Mu Jia Ba Gang experiments section contamination index data are determined once within every five days. Apparatus of the present invention are run 45 days.Front and rear treatment status：
Table 5
Table 6
As shown in Table 5, meter man Ba Gang belongs to bad V class water quality.Table 6 is respectively to refer to for 45 days after the river is administered using above-described embodiment Mark data, total nitrogen cuts down 53.8%, and ammonia nitrogen cuts down 56.25%.With obvious denitrification effect.
The specific implementation case of patent of the present invention is the foregoing is only, but the technical characteristic of patent of the present invention is not limited to This, any those skilled in the relevant art in the field of the invention, all cover of the invention special by the change or modification made Among sharp scope.

Claims (10)

1. a kind of water body purification gallery for river water body ammonia nitrogen in-situ treatment, including at least gallery monomer of two-stage series connection, Characterized in that, also including nanometer aeration machine and the speed-controlling device located at one-level gallery monomer water inlet end；The gallery monomer bag Include：
Floating framework, the floating framework includes that the float tube bubbled through the water column, some fix bars that river bed is squeezed into along float tube and correspondence are worn It is enclosed within the plastic tube in fix bar；
Screen frame, the water entering surface of the screen frame and go out the water surface be the network of rivers, bottom surface and along two sides that water body is flowed to for after biofilm Fluid-tight fine mesh wire, the top margin of the screen frame is sutured with float tube suture, side with corresponding plastic tube, along water in the screen frame Stream direction is divided into nitrification packing area, transition region and denitrification packing area successively by crossing the network of rivers；
And the water distributor in nitrification packing area, the external nanometer aeration machine of the water distributor.
2. water body purification gallery according to claim 1, it is characterised in that the speed-controlling device is impeller, and distance end Level gallery monomer goes out at 3~5 meters of the water surface guiding device for setting and making gallery water outlet form backflow.
3. water body purification gallery according to claim 2, it is characterised in that the guiding device includes：
Squeeze into the galvanized pipe of river bed；
Correspondence is set on the PE pipes on the galvanized pipe；
And be sewn on the PE pipes and fluid-tight fine mesh wire after biofilm, the wire side of the fine mesh wire is towards final stage gallery monomer Go out water surface setting.
4. water body purification gallery according to claim 1, it is characterised in that the speed-controlling device is speed-limiting device, the limit Quick-mounting is set to baffle door, and during the baffle door is inserted vertically into river water body, one of them vertical side and one-level gallery monomer enter The vertical side of the water surface is hinged, another vertical side position in the inlet area of one-level gallery monomer front end is adjustable.
5. water body purification gallery according to claim 4, it is characterised in that the baffle door is set to symmetrical two Fan, is hinged with two of one-level gallery monomer water entering surface vertical sides respectively.
6. water body purification gallery according to claim 1, it is characterised in that specific surface area is filled in the nitrification packing area 10000~20000m2/m3, 20~25g/cm of density3Polyurethane filler, nitrification packing area in filling rate be 30%~50%； 60000~90000m of specific surface area is filled in denitrification packing area2/m3, density 0.3-0.4g/cm3Bamboo ball, nitrify packing area Interior filling rate is 10%~30%.
7. water body purification gallery according to claim 1, it is characterised in that the water distributor includes being connected with nanometer aeration machine Water distribution supervisor and located at water distribution supervisor is upper and correspondence stretches into water distribution branch pipe in nitrification packing area, the water distribution master of each gallery monomer It is parallel with one another between pipe.
8. water body purification gallery according to claim 1, it is characterised in that it is monomer series-connected to set 3~5 grades of gallerys, adjacent corridor Button connection between direct, screen frame between the float tube of road monomer.
9. a kind of technique that river water body ammonia nitrogen in-situ treatment is carried out using water body purification gallery described in claim 1, its feature It is to comprise the following steps：
Control the river water body flow velocity entered in the water body purification gallery in 0.01m/s~0.03m/s by speed-controlling device, enter Enter the river water body in the water body purification gallery repeatedly by nitrification packing area and denitrification packing area, be repeated at nitrification Reason and denitrification treatment, the water body after purified in situ are discharged from final stage gallery monomer water side；
It is aerated in gallery monomer from nanometer aeration machine and water distributor in processing procedure, every grade of gallery monomer nitrification packing area of control 3~6mg/L of dissolved oxygen, transition region 0.5~3mg/L of dissolved oxygen, 0.1~0.5mg/L of denitrification packing area dissolved oxygen.
10. technique according to claim 9, it is characterised in that control gas-water ratio in nanometer aeration machine for (3.5~4)：1, receive Rice bubble diameter 60%~80% is between 200nm-400nm.
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