CN107986511A - Water process air supporting and sedimentation solid-liquid separation device and processing method - Google Patents
Water process air supporting and sedimentation solid-liquid separation device and processing method Download PDFInfo
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- CN107986511A CN107986511A CN201711496985.1A CN201711496985A CN107986511A CN 107986511 A CN107986511 A CN 107986511A CN 201711496985 A CN201711496985 A CN 201711496985A CN 107986511 A CN107986511 A CN 107986511A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- 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
- C02F1/5281—Installations for water purification using chemical agents
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of water process air supporting and sedimentation solid-liquid separation device, including flocculation zone, contact zone, Disengagement zone, mud collection area and deposit exhalant region, contact zone is set between the flocculation zone and Disengagement zone, the Disengagement zone is connected with deposit exhalant region by deposit exhalant region perforation tracery wall, the Disengagement zone lower part sets mud collection area, the flocculation zone is to be made of four conversion zones and a transition, the conversion zone directly passes through wall interval, it is made of in the conversion zone vertical shaft, fine-structure mesh flase floor is set in the vertical shaft.Invention additionally discloses a kind of air supporting of water process and precipitation solid-liquid separating method.The present invention optimizes structure more than, ensures that air-float technology or depositing technology can reach good treatment effect, effluent quality reaches optimal.
Description
Technical field
The present invention relates to water-treatment technology field, more particularly to a kind of water process air supporting and sedimentation solid-liquid separation device
And processing method.
Background technology
Publication No. CN1600695A (patent No. 200410043895.3), it is entitled《Air supporting and precipitation separation of solid and liquid dress
Put》Patent of invention disclose it is a kind of can switchover operation air supporting with precipitation two kinds of water treatment technologies the device to purify water.Its
In contact zone, the middle and lower part of baffle is provided with limbers, is equipped with communicating valve on the contact zone baffle of limbers, outer at Disengagement zone
Lower part in shell is equipped with perforated catchment pipe, and the outer end of perforated catchment pipe is fixedly connected through shell with one end of air supporting outlet valve,
The other end of air supporting outlet valve is connected with air supporting outlet pipe, and the top for tracery wall of perforating is provided with through hole；It is provided with contact zone baffle
Limbers is simultaneously provided with communicating valve, and perforated catchment pipe is provided with Disengagement zone, and the through hole for tracery wall of perforating is opened in perforation tracery wall
Top, taken into account air supporting and both requirement of precipitation.With rational in infrastructure, easy to operate, effects of purification quality up to optimal
The advantages of effect.Above-mentioned technical proposal only discloses the architectural feature of air supporting and sedimentation solid-liquid separation device, does not illustrate
Handle the operating procedure and method of raw water.
Number of patent application is 200910039626.2, and patent name is《Air supporting removes the side of algae with precipitation separation of solid and liquid
Method》Application for a patent for invention disclose it is a kind of be suitable for purification river, river, lake, raw water reservoir air supporting with precipitation separation of solid and liquid
The method for removing algae, comprises the following steps that:Comprise the following steps that:(1) river, river, lake, raw water reservoir are detected；(2)
According to above-mentioned testing result, flocculant is added into raw water or adds flocculant and flocculation aid, and it is sufficiently mixed reaction；
(3) raw water being sufficiently mixed in step (2) after reacting is incorporated into air supporting and sedimentation solid-liquid separation device；(4) according to raw water water
Matter situation determines air supporting or the operation of precipitation.Skill with algae in efficient, applied widely, adaptable processing raw water
Art；Meanwhile the removal rate of algae is set to bring up to more than 90%.Although above-mentioned technical proposal, which discloses, removes algae switchover operation gas
The raw water quality condition of floating technique or depositing technology, discloses weight ratio, inclined plate spacing, dissolved-air pressure, reflux ratio, algae and goes
Except rate.But do not provide integrated artistic operation to handle raw water, remove the operating procedure and method of former impurities in water；No
Provide process operation medicament adds control, method of adjustment；Influence of the key factor to solid-liquid separation effect is not illustrated；
The specific targets of raw water quality detection are not provided；Do not provide flocculation medicament or the adding of flocculation aid, adjust and water quality index
Relation；The cycle scraped mud spoil disposal He scrape slag deslagging is not provided；Source requirement, the pressure air-dissolving of floatation reflux water are not provided
The requirement of tank installation site.
With this, it is necessary to above-mentioned technical proposal is improved, to improve actual processing effect.So (invention) people want into
One step discloses the air supporting for water process and operation and the step of precipitation solid-liquid separating method, discloses above-mentioned technical conditions and ginseng
Number.
The content of the invention
For deficiency existing for prior art described above, the object of the present invention is to provide a kind of effluent quality to be protected
The water process air supporting being effectively ensured and sedimentation solid-liquid separation device, optimize existing equipment structure design, make air supporting with sinking
The operational effect of shallow lake technique reaches optimal, and effluent quality is protected.
It is a further object of the present invention to provide water process air supporting and precipitation solid-liquid separation treatment method.
To achieve these goals, the present invention solves its technical problem institute is using technical solution：Water process air supporting with
Sedimentation solid-liquid separation device, including flocculation zone, contact zone, Disengagement zone, mud collection area and deposit exhalant region, the flocculation zone is with separating
Contact zone is set between area, and the Disengagement zone is connected with deposit exhalant region by deposit exhalant region perforation tracery wall, the Disengagement zone
Lower part sets mud collection area, and for the flocculation zone to be made of four conversion zones and a transition, the conversion zone directly passes through wall
Body interval, is made of in the conversion zone vertical shaft, and fine-structure mesh flase floor is set in the vertical shaft.
The mesh size of the fine-structure mesh flase floor is 20~50mm × 20~50mm, the thickness of the fine-structure mesh flase floor
16~10mm.
The fine-structure mesh flase floor from conversion zone described in water inlet end to water outlet, the conversion zone by 4 layers, 3 layers, 2 layers,
1 layer is successively decreased, and the fine-structure mesh flase floor is centrally arranged, and interlayer level interval is 0.6m~1.0m.
Set between the changeover portion and contact zone of the flocculation zone and touch area's perforation tracery wall connection.
Contact zone baffle, the contact zone height of baffle plate and type sloping plate component bottom are set between the contact zone and Disengagement zone
It is highly identical.
The Disengagement zone is connected with deposit exhalant region, and the deposit exhalant region is wedge shape, and deposit exhalant region bottom is in slope
Shape.Slip hole is set on the division wall of deposit exhalant region and Disengagement zone.
The water surface sets scum silica frost to rush and sweeps water pipe at the top of the Disengagement zone.
The mud collection area is flat construction, sets mud scraper thereon, and collection mud pit is set in mud collection area end.
Air supporting outlet canal gentle float assembly water pipe is set on the air supporting exhalant region, and air supporting collector pipe is arranged on below inclined plate group
And it is connected with air supporting outlet canal.
The air supporting outlet canal passes through Disengagement zone positioned at the outside of precipitation outlet canal, air supporting collector pipe along type sloping plate component bottom
End pool wall, is connected to air supporting outlet canal.
The Disengagement zone sets type sloping plate component, the plate component be by supporting roofbolt that inclined plate is connected and fixed,
The setting angle of wherein described inclined plate is 45~65 degree, and inclined plate spacing is 25-45mm.
The air supporting of water process and precipitation solid-liquid separating method, based on above-mentioned water process air supporting and precipitation separation of solid and liquid dress
Put, the step of it includes is as follows：
(1) raw water quality is detected：
(2) when raw water turbidity is higher than 80NTU, selection operation depositing technology；When raw water turbidity is less than 15NTU, selection
Run air-float technology；As raw water turbidity 15-80NTU, two kinds of techniques can be contrasted according to treatment effect and service requirement, determine choosing
Select operation air-float technology or depositing technology, it is preferred that current operational mode can be run, avoid switching cause to handle stabilization it is poor
The problem of；
(3) medicament is added：The dosage of the flocculant of iron content or aluminium containing salt class for 10-50mg/l, iron content or aluminium or iron and
The dosage of the polymer flocculants of aluminium is 5-40mg/l；Potassium permanganate dosage is 0.5-2.0mg/l, sodium hypochlorite dosage
For 5-40mg/l；Wherein, flocculant is iron content or salt or polymer containing aluminium or iron content and aluminium, such as such as aluminum sulfate, polyoxy
Change aluminium, iron chloride, ferrous sulfate Sodium Polyacrylate or carboxymethyl cellulose etc.；Potassium permanganate or sodium hypochlorite are flocculation aid；
(4) when running air-float technology, when raw water turbidity is less than 15NTU, when scum period is 12 or 24 small, that is, when running
Between reach 12 or 24 it is small when scrape slag；As raw water turbidity 15-80NTU, when running air-float technology, when scum period is 6 or 12 small,
I.e. run time reach 6 or 12 it is small when scrape slag；
When running depositing technology, as raw water turbidity 15-80NTU, scrape mud, sludge discharging period for 24 it is small when, i.e. run time
Reach 24 it is small when scrape mud, spoil disposal；When raw water turbidity is more than 80NTU, depositing technology is run, it is small for 6 or 12 to scrape mud, sludge discharging period
When, i.e., run time reach 6 or 12 it is small when scrape mud, spoil disposal.
Preferably, it is laggard into Disengagement zone after the water after flocculation is mixed with dissolved air water in contact zone when running air-float technology
Enter in the inclined plate gap of type sloping plate component, floccule body, that is, impurity particle in the water that the micro-bubble formed by dissolved air water adheres to, along oblique
Plate basal surface floats up to the water surface, forms air-flotation scum, is removed by periodically scraping slag；The clear water clarified after processing along inclined plate gap to
It is lower to exit into lower step process (such as filter tank) into air supporting collector pipe inflow air supporting outlet canal, air supporting outlet canal.
Preferably, when running depositing technology, the water after flocculation enters in the inclined plate gap of type sloping plate component after entering Disengagement zone,
Floccule body, that is, impurity particle in water is settled down to the upper surface of inclined plate, mud collection area is snapped down to along inclined plate upper surface, by periodically scraping
Mud, spoil disposal remove；The clear water clarified after processing flows to deposit exhalant region perforation tracery wall along inclined plate gap horizontal direction, through precipitation
Exhalant region perforation tracery wall enters the deposit exhalant region of precipitation triangular-notch weir catch basin, and precipitation catch basin flows into precipitation outlet canal.
Preferably, the recirculation water of air-float technology must be taken from the water outlet in follow-up filter tank, and molten gas is blocked to avoid impurities in water
Release.
Wherein, air-float technology pressure air-dissolving tank must be set close to contact zone, to ensure the air flotation effect of dissolved air water.
Compared with prior art, beneficial effects of the present invention：Flocculation zone is changed to grid flocculation form, is arranged in vertical shaft
Fine-structure mesh flase floor, can form good flocculation hydraulics by the current of fine-structure mesh flase floor, promote flocculation reaction shape
Into good floccule body, good matching is attained by with both air supporting and depositing technology, promotes two kinds of technological effects to reach most
It is good；Flocculation zone end sets perforation tracery wall, and the water after flocculation can be made equably to be mixed with dissolved air water, floccule body is disturbed
Dynamic destroy reduces, and promotes the further fusion of floccule body to grow up, promotes the treatment effect of air supporting and depositing technology to reach optimal, together
When, dissolved air water release micro-bubble after flocculation in be uniformly dispersed, be conducive to air supporting and reach optimum efficiency；Contact zone baffle
Upper cancellation coupling cock, adjustment contact zone height of baffle plate are suitable with type sloping plate component bottom level.Solve coupling cock on contact zone to lead
Operation operating difficulties, impact effect are caused, construction and installation are difficult, and connecting rod passes through pool wall and is easy to leak, are easy to cause maintenance thing of cutting off the water
Therefore the problem of；It is excessive to solve contact zone baffle top, to air-float technology, particularly depositing technology, produces larger obstruction, shadow
Xiangshui County's stream enters type sloping plate component, influences to match somebody with somebody water condition, the problem of influencing the treatment effect of air supporting and depositing technology；Cancel Disengagement zone
Top Slag Scraping Device, is changed to hydraulic slag discharging, and the water swept waterpipe and ejected is rushed using the scum silica frost for being arranged in Disengagement zone top inner wall
Stream, promotes water surface scum silica frost to be moved to ash pit, flows into ash pit discharge.Reduce mechanical equipment, solve Slag Scraping Device parts
It is more, easily break down in operational process, influence air supporting deslagging, influence air-float technology operation problem, it is easy to operate, it is easy to real
Existing automated control；Cancel deposit exhalant region bottom redundant space and perforated sludge discharge pipe, be changed to wedge-shaped deposit exhalant region, bottom is set
Slip hole is put, the sludge for being conducive to deposit exhalant region slides into mud collection area naturally, avoids the problem that spoil disposal is not smooth；Air supporting is set to go out
Water channel, controls on weir water level to control Disengagement zone water level, it is ensured that air-float technology is run from lower road by the weir plate that is set in canal
Process water level influences, and can ensure that air-float technology normal table is run；These corrective measures, can further improve air supporting with sinking
The treatment effect of shallow lake process operation, it is ensured that stable and high effective operation, reaches optimization process effect.
Brief description of the drawings
Fig. 1 is air supporting for water process and the sedimentation solid-liquid separation device structure diagram of the present invention；In figure：1 is small
Hole pattern flase floor, 2~5 be flocculation reaction section, 6 be changeover portion, 7 be Gas dissolving pipe road, 8 be type sloping plate component, 9 be slip hole, 10 be
Ash pit, 11 be deposit exhalant region bottom, 12 be precipitation outlet canal, 13 be air supporting outlet canal, 14 be air supporting collector pipe, 15 be spoil disposal
Pipe, 16 be mud valve, 17 be to integrate mud pit, 18 be as contact zone baffle, 21 as release, 22 as mud scraper, 19 as contact zone, 20
Perforated sludge discharge pipe, 23 be contact zone perforation tracery wall, 24 be precipitation effluent trough, 25 be that scum silica frost punching sweeps water pipe, 26 is deposit exhalant region
Perforation tracery wall, 19 be mud collection area, 30 be air supporting exhalant region, 31 be Disengagement zone, 32 be deposit exhalant region.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.It is preferably that attached drawing shows the present invention
The concrete structure of embodiment.The design feature of wherein each element, and if being described to direction (upper and lower, left and right, before and after)
When, it is that wherein arrow be current or sludge discharge direction, but reality of the invention using the structure shown in Fig. 1 as with reference to describing
Use direction is not limited thereto.
Water process air supporting and sedimentation solid-liquid separation device, as shown in Figure 1, including flocculation zone, contact zone 19, Disengagement zone
31st, mud collection area 19 and deposit exhalant region 32, set contact zone 27, the Disengagement zone 31 is with sinking between the flocculation zone and Disengagement zone
Shallow lake exhalant region 32 is connected by deposit exhalant region perforation tracery wall 26, and 31 lower part of Disengagement zone sets mud collection area 19.The flocculation
Area is excessive by four conversion zones (the first conversion zone 2, the second conversion zone 3, the 3rd conversion zone 4, the one or four conversion zone 5) and one
Section 6 forms, and the conversion zone is made of vertical shaft, and fine-structure mesh flase floor 1 is set in the vertical shaft.The fine-structure mesh flase floor 1
Mesh size be 20~50mm × 20~50mm, 10~16mm of thickness of the fine-structure mesh flase floor.Preferably, aperture grid
The mesh diameter of screen is 20mm, thickness 15mm.The fine-structure mesh flase floor 1 is pressed from conversion zone described in water inlet end to water outlet
4 layers, 3 layers, 2 layers, 1 layer are successively decreased, and the fine-structure mesh flase floor 1 is centrally arranged, and interlayer level interval is 0.6m~1.0m；It is preferred that layer
Between level interval be 0.8m.In four conversion zones (the first conversion zone 2, the second conversion zone 3, the 3rd conversion zone the 4, the 1st
Conversion zone 5) and 6 bottom of a transition setting perforated sludge discharge pipe 22.
Tactile area's perforation tracery wall 23 is set to connect between the changeover portion 6 and contact zone 27 of the flocculation zone；Contact zone is set to perforate
The water velocity self-consistentency of tracery wall 23.The tactile area 27 perforation tracery wall 23 at set release 21, the release 21 with
Gas dissolving pipe road 7 connects.
Set 20 height of baffle consistent with 8 bottom level of type sloping plate component on the contact zone 27.The deposit exhalant region 32
For wedge shape, deposit exhalant region bottom 11 is ramp-like, and angle with horizontal plane is 50-55 degree, it is preferred that angle with horizontal plane 53
Degree.Slip hole 9 is set on the division wall of deposit exhalant region 32 and Disengagement zone 31.The 31 top water surface periphery of Disengagement zone is set
Water pipe 25 is swept in scum silica frost punching.
The mud collection area 19 is flat setting, is provided with mud scraper 18, and terminally positioned collection mud pit 17.The collection mud pit
17 connect sludge pipes 15, and mud valve 16 is set on the sludge pipe 15.
Ash pit 10 is set on the Disengagement zone 31, and the clear water after floccule body contamination precipitation is perforated via deposit exhalant region and spent
Wall 26, into deposit exhalant region 32, precipitation outlet canal 12 is flowed into by precipitating catch basin 24.Air supporting exhalant region 30 goes out including air supporting
The gentle float assembly water pipe 14 of water channel 13.The air supporting outlet canal 13 is positioned at the outside of precipitation outlet canal 12, and air supporting collector pipe 14 is along oblique
8 bottom of plate component passes through 31 end pool wall of Disengagement zone, is connected to air supporting outlet canal 13.
The Disengagement zone 31 sets type sloping plate component 8, and the type sloping plate component 8 is by supporting roofbolt to be fastened on inclined plate
Together, the setting angle of inclined plate is 50~55 degree, and inclined plate spacing is 30-40mm.Preferably, the setting angle of inclined plate is 53 degree
(with horizontal direction angle), inclined plate spacing is 35mm, is so more coordinated with integral system, has more excellent treatment effect.
When running air-float technology, raw water add flocculation medicament after enter flocculation zone, flow successively through flocculation reaction section (2,3,
4th, 5), changeover portion 6, by fine-structure mesh flase floor (1) in flow process, then flow through contact zone perforation tracery wall 23, and with release
After the dissolved air water mixing that device 23 discharges, Disengagement zone is flowed into.In contact zone, the micro-bubble of dissolved air water release, after flocculation
Floccule body adhesion in water, forms scum silica frost into Disengagement zone, into after type sloping plate component 8, rising to the water surface, water is swept by scum silica frost punching
The flow action that pipe 25 sprays, is swept to ash pit 10 by the punching of water surface scum silica frost and discharges.Clear water after floccule body impurity removes enters gas
Float assembly water pipe 14 flows into air supporting outlet canal 13, into subsequent process.
When running depositing technology：Raw water add flocculation medicament after enter flocculation zone, flow successively through flocculation reaction section (2,3,4,
5), changeover portion 6, by fine-structure mesh flase floor 1 in flow process, then flow through contact zone perforation tracery wall 23, then flow into Disengagement zone,
Flow into type sloping plate component.Disengagement zone, type sloping plate component inclined plate gap in, the floccule body impurity particle in water, is deposited on inclined plate,
Slide to mud collection area along inclined plate surface, after scraping collection mud pit 17 by mud scraper 18, discharged by sludge pipe 15.Floccule body impurity sinks
Clear water behind shallow lake, into deposit exhalant region, is settled out via deposit exhalant region perforation tracery wall 26 by precipitating the inflow of catch basin 24
Water channel 12.
The air supporting of water process and precipitation solid-liquid separating method, based on above-mentioned water process air supporting and precipitation separation of solid and liquid dress
Put, the step of it includes is as follows：
(1) raw water quality is detected, detection project include turbidity, algae, permanganate index, ammonia nitrogen, iron, manganese,
PH, temperature；
(2) according to the testing result of raw water quality, that is, step (1), selection operation air-float technology or depositing technology, raw water is worked as
When turbidity is higher than 80NTU, selection operation depositing technology；When raw water turbidity is less than 15NTU, selection operation air-float technology；Work as original
During water turbidity 15-80NTU, two kinds of techniques can be contrasted according to treatment effect and service requirement, determine selection operation air-float technology or
Depositing technology；
(3) according to the testing result of step (1), medicament is added into raw water；Added amount of chemical determines, using by step
(1) obtained raw water quality index is detected, is contrasted with conventional history raw water quality index, selects the history raw water being close
History dosage corresponding to water quality index, as current dosage, is added；Further according to medicament is added, by flocculating,
Outlet effect after air supporting or precipitation process, adjustment increases or decreases dosage, to reach optimal outlet effect.Record water outlet effect
The optimal dosage of fruit, as history dosage data.
(4) medicament is added：The dosage of the flocculant of iron content or aluminium containing salt class for 10-50mg/l, iron content or aluminium or iron and
The dosage of the polymer flocculants of aluminium is 5-40mg/l；Potassium permanganate dosage is 0.5-2.0mg/l, sodium hypochlorite dosage
For 5-40mg/l；Wherein, flocculant is iron content or salt or polymer containing aluminium or iron content and aluminium, such as such as aluminum sulfate, polyoxy
Change aluminium, iron chloride, ferrous sulfate Sodium Polyacrylate or carboxymethyl cellulose etc.；Potassium permanganate or sodium hypochlorite are flocculation aid；
Preferably, the dosage of the flocculant of iron content or aluminium containing salt class is 20-30mg/l, iron content or aluminium or the polymer flocculation of iron and aluminium
The dosage of agent is 10-20mg/l；Potassium permanganate dosage is 0.8-1.5mg/l, sodium hypochlorite dosage is 15-25mg/l；
More preferably, the dosage of the flocculant of iron content or aluminium containing salt class is 25mg/l, iron content or aluminium or the polymer flocculants of iron and aluminium
Dosage be 15mg/l；Potassium permanganate dosage is 1.2mg/l, sodium hypochlorite dosage is 20mg/l；
(5) run air-float technology when, after the water after flocculation mix with dissolved air water in contact zone, into Disengagement zone after into tiltedly
In the inclined plate gap of plate component, floccule body, that is, impurity particle in the water of the micro-bubble adhesion formed by dissolved air water, along inclined plate bottom
Surface floats up to the water surface, forms air-flotation scum, is removed by periodically scraping slag；The clear water clarified after processing along inclined plate gap downwards into
Enter the inflow air supporting of air supporting collector pipe 14 outlet canal 13, air supporting outlet canal 13 exits into lower step process (such as filter tank).
(6) when running depositing technology, the water after flocculation enters in the inclined plate gap of type sloping plate component after entering Disengagement zone, in water
Floccule body, that is, impurity particle be settled down to the upper surface of inclined plate, mud collection area is snapped down to along inclined plate upper surface, by periodically scraping mud, row
Mud removes；The clear water clarified after processing flows to deposit exhalant region perforation tracery wall 26 along inclined plate gap horizontal direction, through being settled out
Pool perforation tracery wall 26 enters the deposit exhalant region of precipitation triangular-notch weir catch basin, and precipitation catch basin 24 flows into precipitation outlet canal 12.
(7) determine that operation air-float technology scum period, operation depositing technology scrape mud sludge discharging period according to raw water quality.Operation
Air-float technology, when raw water turbidity is less than 15NTU, scum period for 12 or 24 it is small when, i.e., run time reach 12 or 24 it is small when
Scrape slag；As raw water turbidity 15-80NTU, run air-float technology, scum period for 6 or 12 it is small when, i.e., run time reach 6 or
12 scrape slag when small.
When running depositing technology, as raw water turbidity 15-80NTU, scrape mud, sludge discharging period for 24 it is small when, i.e. run time
Reach 24 it is small when scrape mud, spoil disposal；When raw water turbidity is more than 80NTU, depositing technology is run, it is small for 6 or 12 to scrape mud, sludge discharging period
When, i.e., run time reach 6 or 12 it is small when scrape mud, spoil disposal.
(8) recirculation water of air-float technology must be taken from the water outlet in follow-up filter tank, and molten gas release is blocked to avoid impurities in water
Device.
(9) air-float technology pressure air-dissolving tank must be set close to contact zone, to ensure the air flotation effect of dissolved air water.
The present invention detects multinomial raw water quality index, species and dosing method is added for determine medicament, by raw water water
Matter index is contrasted with history raw water quality index, using history added amount of chemical as current added amount of chemical, carries out medicament
Add, the accuracy of dosage can be improved, improve treatment effect, save medicine consumption.The operating method and step provided, is overall
The application method of various impurity in process water, is not single processing algae, improves the application range of technique, facilitate
Effective use of technique.Raw water particularly difficult to long-term low turbidity, low-temperature and low turbidity processing, while again with high concentrtion, this
The difficult raw water of kind processing, there is provided good method.
The further of selection switching condition, parameter to air-float technology and depositing technology optimizes, clearly, to process operation medicine
The further optimization of agent dosage determines, determining, controlling, method of adjustment for process operation added amount of chemical is given, to inclined plate
The further optimization of angle, spacing, scrapes mud spoil disposal, scum period when giving process operation, these design parameters and operation side
Method, can further improve the treatment effect of process operation, it is ensured that the stable and high effective operation of technique, it is ensured that after process
Water quality further improves.
Compliance test result
Verify that example 1 handles rivers raw water (operation air-float technology)
Raw water quality is detected, according to raw water quality Indexs measure as a result, determining selection operation air-float technology, determines dispensing kind
Class and mode；Contrast history dosage similar in history raw water quality selection water quality.Aluminium polychloride dosage 30mg/L, at the same time
Add potassium permanganate 0.6mg/L；Reflux ratio 5.5%, dissolved-air pressure 0.35MPa；Scum period be determined as 12 it is small when.
After testing, influent quality：Turbidity 23NTU, 28,000,000/L of algae, content of organics (permanganate index)
5.7mg/L；Effluent quality：Turbidity 0.5NTU, 460,000/L of algae, organic matter (permanganate index) content 2.2mg/L.
Verify that example 2 handles rivers raw water (operation air-float technology)
Raw water quality is detected, according to raw water quality Indexs measure as a result, determining selection operation air-float technology, determines dispensing kind
Class and mode；Contrast history dosage similar in history raw water quality selection water quality.Ferric trichloride dosage 5mg/L, throws at the same time
Increase potassium manganate 0.5mg/L；Reflux ratio 6%, dissolved-air pressure 0.38MPa.Scum period be determined as 12 it is small when.
After testing, influent quality：Turbidity 5.5NTU, 47,000,000/L of algae, content of organics (permanganate index)
2.7mg/L；Effluent quality：Turbidity 0.38NTU, algae 520,000/L, content of organics 1.2mg/L.
Verify that example 3 handles lake raw water (operation air-float technology)
Raw water quality is detected, according to raw water quality Indexs measure as a result, determining selection operation air-float technology, determines dispensing kind
Class and mode；Contrast history dosage similar in history raw water quality selection water quality.Ferric trichloride dosage 7mg/L；Reflux ratio
6%, dissolved-air pressure 0.40MPa；Scum period be determined as 12 it is small when.
After testing, influent quality：Turbidity 2.5NTU, 74,000,000/L of algae, content of organics (permanganate index)
1.8mg/L；Effluent quality：Turbidity 0.45NTU, 950,000/L of algae, organic matter (permanganate index) content 0.9mg/L.
Verify that example 4 handles lake raw water (operation air-float technology)
Raw water quality is detected, according to raw water quality Indexs measure as a result, determining selection operation air-float technology, determines dispensing kind
Class and mode；Contrast history dosage similar in history raw water quality selection water quality.Aluminium polychloride 24mg/L, adds at the same time
3mg/L sodium hypochlorite；Reflux ratio 6%, dissolved-air pressure 0.38MPa；Scum period be determined as 12 it is small when.
After testing, influent quality：Turbidity 5.3NTU, algae 48,100,000/L, content of organics 2.3mg/L；Effluent quality：
Turbidity 0.51NTU, algae 980,000/L, content of organics 1.0mg/L.
Verify that example 5 handles rivers raw water (operation depositing technology)
Raw water quality is detected, according to raw water quality Indexs measure as a result, determining selection operation depositing technology, determines dispensing kind
Class and mode；Contrast history dosage similar in history raw water quality selection water quality.Aluminium polychloride dosage 35mg/L, at the same time
Add potassium permanganate 0.8mg/L；Scrape mud sludge discharging period be determined as 6 it is small when.
After testing, influent quality：Turbidity 610NTU, 15,000,000/L of algae, content of organics (permanganate index)
5.6mg/L；Effluent quality：Turbidity 2.0NTU, 2,200,000/L of algae, organic matter (permanganate index) content 2.3mg/L.
Verify that example 6 handles lake raw water (operation depositing technology)
Raw water quality is detected, according to raw water quality Indexs measure as a result, determining selection operation depositing technology, determines dispensing kind
Class and mode；Contrast history dosage similar in history raw water quality selection water quality.Aluminium polychloride dosage 40mg/L, at the same time
Add sodium hypochlorite 4.5mg/l；Scrape mud sludge discharging period be determined as 12 it is small when.
After testing, influent quality：Turbidity 250NTU, 59,400,000/L of algae, content of organics (permanganate index)
2.1mg/L；Effluent quality：Turbidity 0.73NTU, 3,500,000/L of algae, organic matter (permanganate index) content 0.8mg/L.
As described above, is only presently preferred embodiments of the present invention, when the scope implemented of the present invention cannot be limited with this,
The simple equivalent changes and modifications made generally according to scope of the present invention patent and invention description content, all still belongs to the present invention
In the range of patent covers.
Claims (10)
1. water process air supporting and sedimentation solid-liquid separation device, including flocculation zone, contact zone, Disengagement zone, mud collection area and it is settled out
Pool, it is characterised in that contact zone is set between the flocculation zone and Disengagement zone, and it is heavy that the Disengagement zone passes through with deposit exhalant region
Shallow lake exhalant region perforation tracery wall connection, the Disengagement zone lower part set mud collection area, and the flocculation zone is by four conversion zones and one
Transition forms, and the conversion zone directly by wall interval, is made of vertical shaft in the conversion zone, is set in the vertical shaft
Fine-structure mesh flase floor.
2. water process air supporting according to claim 1 and sedimentation solid-liquid separation device, it is characterised in that the fine-structure mesh
The mesh size of flase floor is 20~50mm × 20~50mm, 16~10mm of thickness of the fine-structure mesh flase floor.
3. water process air supporting according to claim 2 and sedimentation solid-liquid separation device, it is characterised in that the fine-structure mesh
Described in flase floor from water inlet end to water outlet on conversion zone, the conversion zone successively decreases by 4 layers, 3 layers, 2 layers, 1 layer, the fine-structure mesh
Flase floor is centrally arranged, and interlayer level interval is 0.6m~1.0m.
4. water process air supporting according to claim 1 and sedimentation solid-liquid separation device, it is characterised in that described to be settled out
Pool is wedge shape, and deposit exhalant region bottom is in ramped shaped, and slip hole is set on the division wall of deposit exhalant region and Disengagement zone.
5. water process air supporting according to claim 1 and sedimentation solid-liquid separation device, it is characterised in that the mud collection area
For flat construction, mud scraper is set thereon, collection mud pit is set in mud collection area end.
6. water process air supporting according to claim 1 and sedimentation solid-liquid separation device, it is characterised in that air supporting exhalant region
The upper setting gentle float assembly water pipe of air supporting outlet canal, air supporting collector pipe are arranged on below inclined plate group and are connected with air supporting outlet canal.
7. water process air supporting according to claim 6 and sedimentation solid-liquid separation device, it is characterised in that the air supporting goes out
For water channel positioned at the outside of precipitation outlet canal, air supporting collector pipe passes through Disengagement zone end pool wall along type sloping plate component bottom, and is connected to
Air supporting outlet canal.
8. water process air supporting according to claim 1 and sedimentation solid-liquid separation device, it is characterised in that the Disengagement zone
Type sloping plate component is set, and the plate component is by supporting roofbolt that inclined plate is connected and fixed, wherein the installation of the inclined plate
Angle is 45~65 degree, and inclined plate spacing is 25-45mm.
9. the air supporting of water process and precipitation solid-liquid separating method, based on any water process air supportings of claim 1-8 with sinking
The step of shallow lake equipment for separating liquid from solid, it includes, is as follows：
(1) raw water quality is detected：
(2) when raw water turbidity is higher than 80NTU, selection operation depositing technology；When raw water turbidity is less than 15NTU, selection operation
Air-float technology；
(3) medicament is added：The dosage of the flocculant of iron content or aluminium containing salt class is 10-50mg/l, iron content or aluminium or iron and aluminium
The dosage of polymer flocculants is 5-40mg/l；Potassium permanganate dosage is 0.5-2.0mg/l, sodium hypochlorite dosage is 5-
40mg/l；
(4) when running air-float technology, when raw water turbidity is less than 15NTU, when scum period is 12 or 24 small；Work as raw water turbidity
During 15-80NTU, when running air-float technology, when scum period is 6 or 12 small；
Run depositing technology when, as raw water turbidity 15-80NTU, scrape mud, sludge discharging period for 24 it is small when；When raw water turbidity is more than
During 80NTU, run depositing technology, scrape mud, sludge discharging period for 6 or 12 it is small when.
10. water process air supporting according to claim 1 and sedimentation solid-liquid separation device, it is characterised in that operation air supporting
During technique, after the water after flocculation is mixed with dissolved air water in contact zone, into Disengagement zone after enter type sloping plate component inclined plate gap in,
Floccule body, that is, impurity particle in the water that the micro-bubble formed by dissolved air water adheres to, the water surface is floated up to along inclined plate basal surface, is formed
Air-flotation scum, is removed by periodically scraping slag；The clear water clarified after processing is downwardly into air supporting collector pipe along inclined plate gap and flows into gas
Emersion water channel；When running depositing technology, the water after flocculation enters in the inclined plate gap of type sloping plate component after entering Disengagement zone, in water
Floccule body, that is, impurity particle is settled down to the upper surface of inclined plate, mud collection area is snapped down to along inclined plate upper surface, by periodically scraping mud, spoil disposal
Remove；The clear water clarified after processing flows to deposit exhalant region perforation tracery wall along inclined plate gap horizontal direction, through deposit exhalant region
Tracery wall of perforating enters the deposit exhalant region of precipitation triangular-notch weir catch basin, and precipitation catch basin flows into precipitation outlet canal.
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| CN113135623A (en) * | 2021-05-31 | 2021-07-20 | 北控水务(中国)投资有限公司 | Water treatment device and method for improving horizontal sedimentation tank |
| CN113413643A (en) * | 2021-07-26 | 2021-09-21 | 中建西部建设建材科学研究院有限公司 | Efficient settling method for waste slurry of concrete mixing plant |
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