CN106677144A - Emergency treating method for eutrophic water blue algae eruption - Google Patents
Emergency treating method for eutrophic water blue algae eruption Download PDFInfo
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- CN106677144A CN106677144A CN201611176811.2A CN201611176811A CN106677144A CN 106677144 A CN106677144 A CN 106677144A CN 201611176811 A CN201611176811 A CN 201611176811A CN 106677144 A CN106677144 A CN 106677144A
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- algae
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
- E02B15/0857—Buoyancy material
- E02B15/0864—Air
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention provides an emergency treatment method for eutrophic water blue algae eruption. An enclosure device used for forming a treatment area is arranged by facing the prevailing wind direction in which blue algae float and are gathered; a salvaging device is used for salvaging the algae in the treatment area; a peak shaving pool is used for temporarily storing the salvaged algae; blue algae cell degassing, flocculation precipitation separation, floatation separation and magnetic separation are adopted to achieve algae and water separation, and algae slag is formed; a dewatering device is used for conducting dewatering treatment on the algae slag, and algae mud is formed; and drying treatment is conducted on the algae mud, and algae particles with the water content smaller than 40% are formed. In the emergency treatment method, efficient salvaging, collecting and algae and water separation are achieved when blue algae are erupted in eutrophic water while the original landscape is protected, volume reduction is achieved to a great extent, removed algae clean water can directly flow back into the water, waste of water resources is avoided, in addition, the algae particles can serve as organic fertilizer to be used, and continuous and efficient non-pollution treatment is achieved.
Description
Technical field
Emergency management is broken out the present invention relates to water environment protection technical field, more particularly to a kind of eutrophication water blue algae
Method.
Background technology
Blue-green Algae Fast Growth growth and breeding and large area aggregation, are the representational fingers of the body eutrophications such as river, lake, storehouse, the pool
Mark.There are more than 2000, nearly 100,000 of reservoir in Chinese natural fresh water lake, and the situation is tense for water environment pollution, the lake more than 50%
There is eutrophication in various degree, wherein most has Blue-green Algae Fast Growth situation, and part reservior blue-green alga density is also on the rise.
Threat, the harm of aquatic ecological and the influence of land and water landscape of the blue-green algae to drinking water source area safety are on the rise, and blue-green algae is administered
It is extremely urgent.Blue-green algae improvement both at home and abroad at present mainly has algae removal, keeps off algae, draw algae, drag for the technologies such as algae and method.
Algae removal is directly to disappear (kill) to go out blue-green algae or suppress blue algae growth in water body using methods such as physics, chemistry or biologies
Breeding, method used has modified clay, lime, copper sulphate, microorganism and the food algae fish for adding flocculant or having flocculation
Class etc..The method is easy, easy, technical requirements are low, has certain effect to low concentration algae water, but can cause the secondary dirt of water body
Dye；The composition such as the blue-green algae being killed and its contained organic matter, nitrogen phosphorus is still trapped in water body, to the endogenous of eutrophication water
Improvement is not contributed.The sporadic disposable treatment of small enclosed water body blue algae water bloom is only applicable to, can not be used as eutrophy
Change the main stream approach of water body Blue-green Algae Fast Growth Emergency management.
Gear algae is to stop that blue-green algae enters default protection zone using the structure of dam type of flexible or hard, while by wind
The factor of power, current and dam type, water conservancy diversion blue-green algae enters administers region.The method can effectively prevent blue-green algae from being made to default protection zone
Into pollution, such as sight spot scenic spot, convalescence area, watershed, Humid Area, living area, but not to blue-green algae formation improvement, it is necessary to
Blue-green algae control measures synchronization implementation, otherwise will result in pollution transportation of the blue-green algae in same water body.
It is while water transfer drainage is carried out to large and medium-sized eutrophic lake that blue alga biomass in water body is a large amount of to draw algae
Take away, such as Taihu Lake implement draw Jiang Jitai water transfer drainages engineering, Dian Chi implement cattle pen river power change Hydraulic Projects.Should
Method can be attached and reduce blue alga biomass primarily to solve the problems, such as hydrodynamic force and water environment, but to the aggregation of blue-green algae
Pollution there is also the danger of pollution downstream water with current blue-green algae downstream without direct governance role.Therefore also it is difficult into
For the predominant methods that blue-green algae is administered.
It is that the blue-green algae for assembling is salvaged using various marine salvage equipments to drag for algae, and blue-green algae aggregation effectively can be directly removed rapidly
Pollution, the harm caused to water environment and Ecology after the dead corruption of control blue-green algae, takes precautions against water body blackening, fouls, and slows down rapidly
Influence of the blue-green algae stink to neighboring area, improves water landscape, and nitrogen, the phosphorus contained by it are also taken away while taking away blue alga biomass
And COD, water quality is can obviously improve, land and water environment is protected, increase environmental capacity of water, it is the effective of the endogenous improvement of eutrophic lake
Means.The method to any material is added in water body, environmental capacity of water load is not increased, is had compared with algae removal method obvious
Ecological, environmental protective advantage.If but the blue-green algae to salvaging disembarkation is not processed and harmlessness disposing, will also result in secondary pollution.
In view of this, it is necessary to which the technology to Blue-green Algae Fast Growth Emergency management in eutrophication water of the prior art gives
Improve, to solve the above problems.
The content of the invention
Method it is an object of the invention to disclose Blue-green Algae Fast Growth Emergency management in a kind of eutrophication water, is used to realize
Realize efficiently removing blue-green algae to breaking out the blue-green algae in the waters of blue-green algae, and realize the harmless treatment of continuous high-efficient, improve to not
With the adaptability in waters.
To achieve the above object, the invention provides a kind of method that eutrophication water blue algae breaks out Emergency management, meet
The prevailling wind direction of blue-green algae floating aggregation is provided for forming the enclosed device for administering region；Salvaged using fishing device and administer area
Blue-green algae in domain；The blue-green algae for salvaging is kept in using peak regulation pool；Separated using Cells of Blue-green Algae degassing, flocculation precipitation,
Dissolved air flotation and Magneto separate, realize that algae water is separated, to form algae-residue；Dewater treatment is carried out to algae-residue using dehydration equipment, with shape
Into algae mud；Drying and other treatment is carried out to algae mud, to form algae particle of the moisture content less than 40%.
Used as the further improvement of invention, the enclosed device includes and the flexible floating dam or hard for enclosing bank and not contacting setting
Dykes and dams.
Used as the further improvement of invention, the flexible floating dam includes：It is floating in the floating body of continuous arrangement, mass, connection
The separation net of body and mass, and the fixing device for being fixed on water bottom；The hard dykes and dams are by higher than water surface
Pile, the earthwork or building stones are made.
As the further improvement of invention, the inflatable apparatus that the floating body is made for flexible material, the inflatable dress
Clamped mechanism is put to separate to form multiple floating body sections；The separation net is crossed connector and is spliced by multiple separaant Netcoms, institute
State and connected by connector between separation net and mass；The fixing device includes guide pile and drawstring, described drawstring one end
Connection guide pile, the other end is connected with the top edge of separation net.
Used as the further improvement of invention, the flexible floating dam also includes controlling organization, and the controlling organization includes pneumatics
Machine, controller, air compressor machine, charge valve and vent valve, and tracheae are set in the floating body section；The tracheae by charge valve and
Vent valve connects each floating body section, and controller controls air compressor machine to the operation for being inflated and deflating in floating body section.
Used as the further improvement of invention, the fishing device includes that imbibition type algae fetching boat, the latent suction adjustable whirlpool well of type take
Algae device, floated drawing machine for floating algae or suspension inverse inhalation type whirlpool well take algae device.
Used as the further improvement of invention, the dehydration equipment includes horizontal type screw settling centrifuge, belt filter press, dish
Sheet type spiral centrifuge or plate and frame type filter-press.
As the further improvement of invention, the enclosed device and the perpendicular arrangement in prevailling wind direction.
As invention further improvement, the drying and other treatment include solar energy irradiation drying and other treatment, microwave drying and other treatment,
Hollow blade drying and other treatment or low temperature dehumidification algae grainy treatment；The frequency of the microwave in the microwave drying and other treatment be 3 ×
102~3 × 105MHz, wavelength is 1mm~1m.
Compared with prior art, the beneficial effects of the invention are as follows：In the present invention, realized while original landscape is protected
Efficiently being salvaged during to breaking out blue-green algae in eutrophication water, being collected and algae water is separated, realized significantly volume reduction, gone
Except the clear water of blue-green algae can directly flow back in water body, it is to avoid the waste of water resource, and algae particle can be used as organic fertilizer,
Realize the free of contamination treatment of continuous high-efficient.
Brief description of the drawings
Fig. 1 administers eutrophication water blue algae concentration and breaks out for the littoral method using shown by the present invention in Hefei City Chaohu
The urgent scheme schematic diagram administered；
Fig. 2 is the structural representation of flexible floating dam；
The sectional view of Fig. 3 line B-Bs along Fig. 2；
Fig. 4 be Fig. 2 in marked as the enlarged drawing at A；
Fig. 5 is to hang the structural representation that inverse inhalation type whirlpool well takes algae device；
Fig. 6 is the flow chart of the method that a kind of eutrophication water blue algae of the invention breaks out Emergency management.
Specific embodiment
The present invention is described in detail for shown each implementation method below in conjunction with the accompanying drawings, but it should explanation, these
Implementation method not limitation of the present invention, those of ordinary skill in the art according to these implementation method institutes works energy, method,
Or equivalent transformation or replacement in structure, belong within protection scope of the present invention.
Shown in ginseng Fig. 1, a kind of eutrophication water blue algae shown by the present invention breaks out the technology of the method for Emergency management
Route is：Set up defences, salvage, peak regulation, algae water separate, dehydration and desiccation, and be specially：Meet the prevailling wind direction of blue-green algae floating aggregation
75 are provided for forming the enclosed device 76 for administering region；The blue-green algae administered in region is salvaged using fishing device 71；Use tune
The blue-green algae for salvaging is kept in 73 pairs, peak pond；Using Cells of Blue-green Algae degassing, flocculation precipitation separation, dissolved air flotation and Magneto separate
Deng algae water separation technology, to realize that algae water is separated, and algae-residue is formed；Dewater treatment is carried out to algae-residue using dehydration equipment, with shape
Into algae mud；Drying and other treatment is carried out to algae mud, to form algae particle of the moisture content less than 40%.Fishing device 71 and peak regulation pool 73 it
Between connected by conveyance conduit 72.The enclosed device 76 is set away from bank 74 is enclosed, and ensures that minimum range between the two is 500
Rice.
Next, being elaborated to above-mentioned key step and the technical scheme for relating generally to reference to Fig. 6.
(1) set up defences.In the water bodys such as lake, storehouse, the pool that blue-green algae frequently breaks out, in face of the prevailling wind for causing blue-green algae to float aggregation
Direction 75 sets enclosed device 76.The enclosed device 76 includes flexible floating dam or hard dykes and dams, stops that blue-green algae enters default guarantor
Shield region, while by wind-force, current and dam type condition, water conservancy diversion blue-green algae enters administers region.The method can effectively prevent blue-green algae
Default protection zone is polluted, such as watershed, Landscape Region, convalescence area, Humid Area, living area；Water conservancy diversion enters administers area
The blue-green algae in domain is beneficial to scale, centralization, salvages to timelyization to come from water body, it is to avoid pollution transportation.In present embodiment
In, it is preferred to use flexible floating dam 100.
Shown in ginseng Fig. 2 and Fig. 3, the flexible floating dam 100 can be floated with stormy waves, and obstruction but not shadow are formed to the blue-green algae in water body
Xiangshui County's body is exchanged, but with gear algae well and the effect for leading algae, in the existing scale application in Taihu Lake, Dian Chi and Chaohu.Specifically
, shown in ginseng Fig. 2 to Fig. 4, in the present embodiment, the flexible floating dam 100 includes：In the floating body 10, mass of continuous arrangement
20th, the separation net 31 of connection floating body 10 and mass 20, and the fixing device 5 for being fixed on water bottom.
The inflatable apparatus that floating body 10 is made for flexible material.The clamped mechanism of inflatable apparatus separates to form multiple floating bodies
Section, the length of each floating body section may be configured as 1 meter or longer.Floating body 10 can be made of rubber, can be had using other
The good weatherability properties and material for having certain flexibility is made.By setting in the floating body 10 of this multi-segment structure, floating body is may be such that
10 can preferably adapt to different landform and water surface shape, with more preferable adaptability.
Shown in ginseng Fig. 3, fixing device 5 is separately positioned on the both sides of separation net 31.Fixing device 5 includes guide pile 51 and draws
Rope 52.The one end of drawstring 52 connects guide pile 51, and the other end is connected with the top edge of separation net 31.Guide pile 51 is reliably fixed on
Water bottom, plays a part of fixed floating body 10 and mass 20.
Two adjacent floating body sections 101 and floating body section 102 are shown in Fig. 2, both realize isolating by clamping device.Should
Clamping device includes that two equal lengths and length direction are crushed state more than or equal to floating body section 101 and floating body section 102
The lath 11 of Shi Kuandu.The through hole for corresponding to each other is formed on lath 11, and by fastener 111 (such as bolt assembly), by two
Individual lath 11 is realized clamping floating body, so as to form floating body section 101 and floating body section 102 of two inside in isolation.The fastener 111
Can select stainless steel bolt or rivet.
Separation net 31 is crossed connector 30 and is spliced by multiple separaant Netcoms, and the splice 30 includes latch hook 33 and lock
32.Specifically, isolation subnet 311 side vertically is provided with latch hook 33, and it is adjacent with the isolation subnet 311 and spelled
The isolation subnet 312 for connecing side vertically is provided with the lock 32 for being adapted to and being flexibly connected with above-mentioned latch hook 33.
Meanwhile, the bottom of separation net 31 can be also connected by above-mentioned connector 30 with mass 20.The density of mass 20
Much larger than the density of water, it is tensioned with the vertical direction by self gravitation by separation net 31 in water, to form a filtering
Face.The separation net 31 can be made of nylon or non-woven fabrics, and the aperture of separation net 31 is not less than 1mm, so that can anti-water-stop body
Function of exchange fails.
The mass 20 may be either an overall structure, or split-type structural.Specifically, shown in ginseng Fig. 2, in this reality
Apply in example, the mass 20 includes multiple counterweight tubes 22 of continuous head and the tail connection, and is arranged at the balance weight body in counterweight tube 22
21.The balance weight body 21 can be the material of stone, metal or density much larger than 1.
Meanwhile, coordinating shown in reference picture 2 and Fig. 4, the flexible floating dam 100 also includes controlling organization, the controlling organization bag
Air compressor machine (not shown), controller (can select PLC or single-chip microcomputer) are included, air compressor machine is connected with tracheae 44.Set in floating body section 101
Put charge valve 41 and vent valve 43, and tracheae 44.Wherein, charge valve 41 is check valve, and vent valve 43 is electronic valve, and is passed through
Wire 47 is set up with controller and is electrically connected.The air that air compressor machine is exported is by tracheae 44 and via charge valve 41 to floating body section
Inflation in 101, so that on floating body 101 inflations of section and floating and the water surface 49.
When needing the flexible floating dam 100 of reduction to swim in the height on the water surface 49, controller sends stopping and fills to air compressor machine
The instruction of gas, and stop signal is sent to vent valve 41, the air in floating body section 101 is simultaneously passed through gas by the controlled opening of vent valve 43
Pipe 44 is discharged.So that the flexible floating dam 100 can realize being realized on the water surface 49 effect of mobile lifting, this is improve soft
The adaptability of property floating dam 100.
Tracheae 44 connects each floating body section, charge valve 41, vent valve 43 and tracheae by charge valve 41 and vent valve 43
Connected by threeway 45 between 44.Controller controls air compressor machine to the operation being inflated in floating body section 101 with deflation, so that real
Show regulation each floating body section and swim in the height of the water surface 49, so that realize intercepting the blue-green algae of various concentrations, while
Also the blue-green algae being suspended in water body can under water be intercepted, is improve the flexible floating dam 100 to water body inside and the indigo plant on surface
The intercepting efficiency of algae.
Hard dykes and dams, refer to be set according to blue-green algae prevention and control area scope, according to the dam shape of design, using pile, the earthwork, stone material
Material constructs the dam body higher than the water surface from the bottom, and constructing hard dykes and dams in eutrophication water has obstruction blue-green algae, prevents blue-green algae
Gathering offshore causes necrosis smelly and effect that is influenceing environment and landscape, while also can design to direct into blue-green algae by dam shape controlling
Salvaged in reason region.
(2) salvage.Enter the blue-green algae (solid content 0.5~1%) for administering region clustering to water conservancy diversion, entered using fishing device 12
Row machinery is salvaged, in time to be processed blue-green algae removal water body.The method effectively can directly remove rapidly blue-green algae aggregation pollution,
The harm that the dead corruption of control blue-green algae is caused to water environment and Ecology, takes precautions against water body blackening, fouls；Blue-green algae can rapidly be slowed down smelly
Influence of the taste to neighboring area, improves water landscape；Also taken away while blue alga biomass is taken away nitrogen contained by it, phosphorus and
COD, can obviously improve water quality, protect land and water environment, increase environmental capacity of water.
The fishing device 12 includes：
Imbibition type algae fetching boat, it is made up of catamaran, fixed mount, aggregation case, adjusting screw rod, and salvaging can be moved on the water surface
Blue-green algae, with salvaging that effect is good, mobility strong, wide job area the characteristics of.
The latent suction adjustable whirlpool well of type takes algae device, and it on the support platform of fixation waterborne, side wall by connecting submersible sewage pump and can go up
The suction algae cylinder of lower regulation is constituted.Adjust the height of 0~1.5m up and down according to different water levels, it is ensured that efficiently aspirate the algae on water surface top layer
Slurry.Have the advantages that big flow, top layer draw blue-green algae.The specific implementation that the latent adjustable whirlpool well of suction type takes algae device can join this
The Chinese invention patent application file of the Application No. 201510674477.2 that applicant submitted in 2015.
Floated drawing machine for floating algae, its frame for including being connected with ball float is provided with immersible pump in frame, immersible pump enters
The mouth of a river is upward.Top layer can be carried out to the blue-green algae of small range aggregation to draw, with flexible advantage.
The structure that suspension inverse inhalation type whirlpool well takes algae device is joined shown in Fig. 5.The suspension inverse inhalation type whirlpool well takes algae device includes electronic calabash
Reed 81, takes algae device 82, and the bottom for taking algae device 82 connects a whirlpool well and takes algae device 86, and whirlpool well takes arrow 88 along Fig. 5 of algae device 86
Direction draw blue-green algae, and discharged from defeated algae pipe 87.The whirlpool well takes the entirety of algae device 86 not in the lower section of the water surface 49, and can be electronic
Realize that whirlpool well takes the rising or reduction in vertical direction of algae device 86 under the driving of cucurbit 81.The suspension inverse inhalation type whirlpool well takes algae
Electric block 81 in device, takes algae device 82 and whirlpool well takes algae device 86 by overall inside the framework 83 welded by channel-section steel,
The internal welding of framework 83 is connected to the support 84 and support 85 being made up of angle steel, takes algae device 82 and is continuous through support 84 and support 84.Electricity
Dynamic cucurbit 81 is fixedly connected by chain or other connectors with framework 83.
(3) peak regulation.Because the blue-green algae that Blue-green Algae Fast Growth has periodicity and peak value, peak period aggregation need to salvage in time, prevent
Only it stops dead corrupt in water and causes harm under the high temperature conditions.Limited by objective condition, fishing is small on daytime 12
When interior carry out.The algae slurry for salvaging disembarkation need to carry out the separation of algae water and harmless treatment, disposal ability be by Economic optimization principle,
What the average magnitude according to Blue-green Algae Fast Growth was designed, there is a threshold value, can run for 24 hours.To solve to salvage incomplete with disposal ability
Synchronous contradiction, therefore the neighbouring setting peak regulation pool 14 of bank 13 can be being enclosed, kept in the algae slurry salvaged to peak period, it is ensured that
Giving full play to for salvaging ability is processed with follow-up regulation.The peak regulation pool 14 can be the closed concrete sump of structure, or change
The outdoor pond made.Peak regulation pool 14 is interconnected by conveyance conduit 15 with fishing device 12, and fishing device 12 is salvaged
The algae slurry for coming is delivered in peak regulation pool 14 by conveyance conduit 15.
(4) algae water is separated.It refers to be separated from water during using algae water separation technology, blue-green algae is starched from algae water or algae that algae water is separated,
Blue-green algae is deposited or floating product is the algae-residue of moisture content 93~95%, and the clear water of removal blue-green algae is returned and enters raw water body.
The algae water separation technology includes：
Precipitated separation technology.
Direct flocculation sediment is separated：In the presence of flocculant, make blue-green algae particle in algae water or algae slurry and other are thin
Micro suspension thing is condensed into floccule body, and flco rapid precipitation in sedimentation basin completes algae water and separates.The flocculant is included but is not limited to
PAM medicaments, PAC medicaments.
Cells of Blue-green Algae deaerates and flocculation sediment isolation technics.
Blue-green algae generally exists in the form of blastophore, and tens of or hundreds of cells can be contained in a blue-green algae blastophore, blastophore
Adventitia is one layer of glue quilt, containing multiple puppet vacuoles in Cells of Blue-green Algae.Blastophore makees motion of floating when pseudo- vacuole is inflated, and this can influence directly
Flocculation sediment separating effect.The gas in frustule puppet vacuole is disengaged by degassing equipment, reduces the buoyancy of blue-green algae, so that sharp
Precipitation is formed under flocculant effect, algae water is reached and is separated purpose.
The degassing equipment includes：
High speed shear degassing equipment.Using produced mechanical shear stress and pressure is rotated between stator and rotor at a high speed, break
Bad blue-green algae blastophore cyst membrane, makes the free dispersion of frustule, and disengage the gas in frustule puppet vacuole.
Pressure degassing equipment.By starching pressure to algae water or algae in a reservoir, distinctive air bag etc. is interior in itself to break ring blue-green algae
Portion's structure, release wherein gas, reduces the buoyancy of blue-green algae, so that profit forms precipitation under flocculant effect, reaches the separation of algae water
Purpose.
Dissolved air flotation technology.
Blue-green algae is suspended in water in the form of unicellular or cell mass blastophore, is that flocculation adheres to optimal target with bubble
Mark.Dissolved air flotation refers to large quantity of air is soluble in water, the formation dissolved air water, as working media, by releasing under pressure condition
Device sudden pressure reduction quick release is put, a large amount of micro air bubbles are produced.Wadded a quilt with cotton through the blue-green algae of coagulating formation in micro air bubble and algae water
Body adheres to each other, and flco proportion is bubbled through the water column less than 1, so that blue-green algae is separated from the water out, forms algae-residue.
Magnetic separation technique.
Magnetic kind (being commonly called as iron powder) and flocculant are added in being starched to blue algae water or algae, magnetic floc sedimentation is condensed into.Again by the external world
Magnetic field suctions out the magnetic floc sedimentation containing blue-green algae, realizes that algae water is separated.
(5) it is dehydrated.Volume reduction is further dehydrated to the algae-residue (sediment and scum silica frost) of moisture content 93~95% using dehydration equipment,
The algae mud of average moisture content 85% is obtained, beneficial to follow-up harmlessness disposing.
Dehydration equipment includes：Horizontal type screw settling centrifuge, belt filter press, disc-type screw centrifuge, plate and frame pressure
Filter, the processing procedure being dehydrated to algae-residue to above-mentioned dehydration equipment below is made briefly to illustrate.
Horizontal type screw settling centrifuge：Algae-residue reacts to form flco with flocculant, increases the difference in specific gravity of solid-liquid, by dehydration
The centrifugal action of equipment, makes solid-liquid two-phase laminated flow, and solid phase is deposited to formation algae mud on bowl wall, by spiral organ by its
Cinder notch is released, clear liquid then overflows from overfall.
Belt filter press：Applying pressure to algae-residue on filter cloth using the tension force and pressure of filter cloth (band) is dehydrated it, takes off
Pat of cement is peeled off by scraper plate, and the strainer for having peeled off mud cake is rinsed with injection water, prevents strainer hole plug.There is the machine low speed to transport
OK, noiseless, treating capacity compared with the characteristics of.
Disc-type screw centrifuge：Lamination spiral filtering machine is main by auger axle, multiple fixed lamination and multiple
Travelling lamination composition, the machine has two functional areas of enriching section and dewatering period, and a large amount of filtrates are flowed out by concentrating chamber in algae-residue, concentrated
Algae-residue is further compressed dehydration and forms outside algae mud discharge machine by auger axle afterwards.
Plate and frame type filter-press：Belong to normal pressure press-dehydrating, i.e., a number of filter plate is tight in the presence of strong mechanical force
It is close to form a line, filter chamber is formed between filter plate face and filter plate face, algae-residue is admitted to filter chamber in powerful direct draught, into filter chamber
Solid portion is retained to form filter cake by filter cloth in algae-residue, and liquid portion discharges filter chamber through filter medium, so as to reach solid-liquid
The purpose of separation.Plate and frame type filter-press has simple structure, and filter cake solid content is high, the characteristics of solid content is low in filtrate.
(6) desiccation.
Blue-green algae is salvaged by obtaining the algae mud of moisture content 85% or so after separation, dewater treatment, if algae mud can not be had
Effect disposal is then likely to result in secondary pollution, the restraining factors as the work of blue-green algae Emergency management.Using drying technique, by moisture content
Algae particle of the 85% algae mud desiccation into moisture content less than 40%, can use as organic fertilizer, also can directly fill or burn, from
And realize harmlessness disposing.
The drying technique includes：
Solar energy irradiates drying and other treatment：Algae mud in greenhouse is by after solar radiation, temperature is raised, and internal moisture is to week
Enclosing accelerate the air humidity on carburation by evaporation, algae mud surface to increase up to saturation state in air；By ventilation and Natural Circulation, temperature
Indoor humid air is discharged, and the air humidity on algae mud surface enters unsaturated state by original saturation state, inside algae mud
Moisture further to ambient air vaporization, and so on up to making algae mud desiccation.Solar energy desiccation technology energy consumption is low, operation side
Just.
Microwave drying and other treatment：Refer to that frequency is 3 × 102~3 × 105MHz, wavelength is the microwave of 1mm~1m, by microwave spoke
The polar molecule penetrated can in microwave electric field high vibration, produce friction, will absorb microwave energy be heat energy.Microwave desiccation
Technology is, using this property of microwave, to promote the temperature arrising caused by friction in microwave electric field of the hydrone inside algae mud, is formed by interior
Outside thermograde, promotes algae mud internal moisture to be diffused into surface evaporation quickly.During microwave drying algae mud, the heat time is short,
The thermal efficiency is high.
Hollow blade drying and other treatment：It is the technology that algae mud desiccation is completed by blade dryer.Blade dryer is a kind of
Horizontal stirring type continuous drying equipment based on heat transfer, cylinder, groomed oar rachis and the drive device for mainly having jacketed
Composition, imports and exports from the swivel joint of shaft end, and heating medium respectively enters drying machine housing chuck and paddle shaft inner chamber, will be dry
Dry machine inwall, hollow blade, hollow shaft heating, desiccation is carried out by way of heat transfer to material.Material continuously enters drying
In machine, upset is not stopped in the case where hollow paddle continuously rotates stirring action, can be sufficiently uniformly heated.Blade is while rotating
Material after desiccation is delivered into discharging opening to exclude.Blade dryer has that energy consumption is low, heat utilization ratio is high, it is safe and reliable, set
It is standby to take up an area and reduced investment, the low feature of operation and maintenance cost.
Low temperature dehumidification algae mud drying and other treatment：Dehumidifying heat pump, is damp-heat air is lowered the temperature dehumidification while logical using refrigeration system
Cross the empty a kind of device of moisture content condensation latent heating that heat pump principle is reclaimed in air.The wet desiccation machine of algae Fender is using the heat pump that dehumidifies
Algae mud is dried using hot air circulation dehumidification by condensation, odorless is excessive, low with energy consumption, is proved according to field measurement, every 1 degree of electricity
The advantages of can remove 3.5kg water, small environment-friendly, floor space, Based Intelligent Control.
In the present embodiment, solve keep off in traditional Blue-green Algae Fast Growth emergency processing algae and incurable algae, salvage and nowhere
Reason and the dead-end contradiction of algae mud.
By setting enclosed device, to stop that blue-green algae enters default protection zone, and by wind-force, current and dam type etc.
Condition, water conservancy diversion blue-green algae enters administers region, effectively prevents blue-green algae to watershed, Landscape Region, convalescence area, Humid Area, living area etc.
Pollute；Water conservancy diversion enters the blue-green algae (solid content 0.5~1%) for administering region, using efficiently taking the special marine salvage equipment such as algae device
Scale, centralization, timelyization salvaging are carried out, blue-green algae is removed into water body in time, prevent from causing water body lasting harm；In salvaging
The blue-green algae of bank obtains algae mud of the moisture content less than 85% by algae water separating treatment, realizes significantly volume reduction, removes the clear of blue-green algae
Water returning drainage body, it is to avoid water resource waste；The algae mud of moisture content 85% is carried out using low energy consumption, environment-friendly drying equipment
Desiccation, obtains algae particle of the moisture content less than 40%, can be used as organic fertilizer, also can directly fill or burn, so as to realize
Harmlessness disposing.
Engineering Projects
Comparison and choice：Hefei Baohe District Chaohu is littoral.
Flexible floating dam is set used as enclosed device：1000m × 2, two curved flexible floating dams, flexible floating dam distance
Loke shore 500m (minimum range).
The latent suction adjustable whirlpool well of type takes algae device：500m3/ hour, salvage daytime 12 hours.
Peak regulation pool volume：5000m3。
Algae water is separated：Treating capacity 3360m3/ day, runs for 24 hours.
If desiccation workshop：The ton hour of desiccation algae grain amount 7.
The greening base manure that does along the lake is transported to outside algae particle to use.
Effect：1. the land and water environment in the regions such as business building district, the park of bank is protected；2. blue algae slurry is processed daily
3360m3, equivalent to taking 1.34 tons of nitrogen, phosphorus 79kg out of from Chaohu.
Those listed above is a series of to be described in detail only for feasibility implementation method of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included within the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (9)
1. a kind of method that eutrophication water blue algae breaks out Emergency management, it is characterised in that meet the prevailing of blue-green algae floating aggregation
Wind direction is provided for forming the enclosed device for administering region；The blue-green algae administered in region is salvaged using fishing device；Use tune
Peak pond is kept in by the blue-green algae for salvaging；Using Cells of Blue-green Algae degassing, flocculation precipitation separation, dissolved air flotation and Magneto separate,
Realize that algae water is separated, to form algae-residue；Dewater treatment is carried out to algae-residue using dehydration equipment, to form algae mud；Algae mud is carried out
Drying and other treatment, to form algae particle of the moisture content less than 40%.
2. method according to claim 1, it is characterised in that the enclosed device includes and encloses bank and do not contact the soft of setting
Property floating dam or hard dykes and dams.
3. method according to claim 2, it is characterised in that the flexible floating dam includes：In the floating body of continuous arrangement, match somebody with somebody
The separation net of weight, connection floating body and mass, and the fixing device for being fixed on water bottom；The hard dykes and dams are by being higher than
The pile of water surface, the earthwork or building stones are made.
4. method according to claim 3, it is characterised in that the inflatable apparatus that the floating body is made for flexible material,
The clamped mechanism of the inflatable apparatus separates to form multiple floating body sections；The separation net crosses connector by multiple separaant Netcoms
It is spliced, is connected by connector between the separation net and mass；The fixing device includes guide pile and drawstring, institute
Drawstring one end connection guide pile is stated, the other end is connected with the top edge of separation net.
5. method according to claim 4, it is characterised in that the flexible floating dam also includes controlling organization, the control
Mechanism includes air compressor machine, controller, air compressor machine, and charge valve and vent valve, and tracheae are set in the floating body section；The tracheae
By charge valve and vent valve connect each floating body section, controller control air compressor machine to floating body section in be inflated and deflate
Operation.
6. method according to claim 1, it is characterised in that the fishing device includes imbibition type algae fetching boat, latent suction type
Adjustable whirlpool well takes algae device, floated drawing machine for floating algae or suspension inverse inhalation type whirlpool well and takes algae device.
7. method according to claim 1, it is characterised in that the dehydration equipment include horizontal type screw settling centrifuge,
Belt filter press, disc-type screw centrifuge or plate and frame type filter-press.
8. method according to claim 1, it is characterised in that the enclosed device and the perpendicular arrangement in prevailling wind direction.
9. method according to claim 1, it is characterised in that the drying and other treatment include solar energy irradiation drying and other treatment,
Microwave drying and other treatment, hollow blade drying and other treatment or low temperature dehumidification algae grainy treatment；It is micro- in the microwave drying and other treatment
The frequency of ripple is 3 × 102~3 × 105MHz, wavelength is 1mm~1m.
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| CN110407363A (en) * | 2019-08-15 | 2019-11-05 | 江苏聚慧科技有限公司 | Cyanobacteria desiccation integral processing method and processing device |
| CN110526323A (en) * | 2019-09-19 | 2019-12-03 | 杭州盛吉金属塑料有限公司 | A kind of collection method of cyanobacteria |
| CN110759527A (en) * | 2019-10-29 | 2020-02-07 | 清华大学深圳国际研究生院 | Wastewater treatment system and method |
| CN111285494A (en) * | 2020-02-18 | 2020-06-16 | 广西博世科环保科技股份有限公司 | Combined purification process of blue algae water body |
| CN111592178A (en) * | 2020-05-15 | 2020-08-28 | 无锡市蓝藻治理办公室 | Comprehensive treatment device and method for near-shore water body blue algae |
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| CN111285494A (en) * | 2020-02-18 | 2020-06-16 | 广西博世科环保科技股份有限公司 | Combined purification process of blue algae water body |
| CN111592178A (en) * | 2020-05-15 | 2020-08-28 | 无锡市蓝藻治理办公室 | Comprehensive treatment device and method for near-shore water body blue algae |
| CN111747612A (en) * | 2020-07-01 | 2020-10-09 | 无锡德林海环保科技股份有限公司 | Blue algae fishing and separating method |
| CN112030909A (en) * | 2020-08-21 | 2020-12-04 | 江苏东方生态清淤工程有限公司 | Full-flow all-season treatment process for controlling lake flooding of lake water body |
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Application publication date: 20170517 |