CN208413913U - A kind of impact-resistant efficient air-floating system - Google Patents

A kind of impact-resistant efficient air-floating system Download PDF

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Publication number
CN208413913U
CN208413913U CN201820720616.XU CN201820720616U CN208413913U CN 208413913 U CN208413913 U CN 208413913U CN 201820720616 U CN201820720616 U CN 201820720616U CN 208413913 U CN208413913 U CN 208413913U
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China
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area
air
zone
flocculation zone
impact
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CN201820720616.XU
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Chinese (zh)
Inventor
牛留霞
程国际
陈�光
严青
尹道三
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Is Environmental Technology Co Ltd
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Is Environmental Technology Co Ltd
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Abstract

The utility model discloses a kind of impact-resistant efficient air-floating systems, it mainly include coagulation area, the first flocculation zone, the second flocculation zone and mud-water separating area, the coagulation area, the first flocculation zone are respectively equipped with the first agitating device, the second agitating device and third agitating device in the second flocculation zone, the mud-water separating area includes air-dissolving air-float area, decanting zone, dross area and clear water zone, the air-dissolving air-float area and the second flocculation zone adjacent are equipped with molten gas release head, and the air-dissolving air-float area is equipped with mud scraper close to the edge in dross area.The utility model to intake SS in the case of the fluctuation of tens mg/L to 1000mg/L, stable effluent quality, and processing load is high, effluent quality is good and the time of dosage and flocculation reaction stable, that can reduce flocculant simultaneously.

Description

A kind of impact-resistant efficient air-floating system
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of impact-resistant efficient air-floating system.
Background technique
Many Industrial Waste Water Treatments factory biochemistry pools water outlet concentration of suspension (such as winter very big as seasonal variations fluctuate It is low, summer is high) or with water inlet pollutant (including SS- suspended solid and COD- chemical oxygen consumption (COC)) variation, biochemistry pool goes out Water SS also can be by larger fluctuation;In the improvement of water body (such as black-odor riverway etc.), the SS that heavy rain season enters water body is much high In usually and fluctuation it is larger;When planning that Rainwater Resources utilize, generally require to handle initial rainwater, and just rain is same Have the characteristics that SS amplitude of variation is big.Therefore, it is necessary to develop a kind of resistance to SS impact and efficient processing unit to such waste water into Row processing.
It is poor based on the anti-suspended matter load impact ability of existing dissolved air flotation process, processing load is low, takes up a large area etc. and to lack Point, the characteristics of precipitating in conjunction with air-dissolving air-float and inclined tube (plate) and advantage, develop a kind of anti-suspended matter load fluctuation impact, simultaneously The novel compositions air-flotation system for having hydraulic loading height, stable effluent quality.
Summary of the invention
The purpose of the present invention is to solve the above problems, and propose a kind of impact-resistant efficient air-floating system, so that SS intake in the case of the fluctuation of tens mg/L to 1000mg/L, stable effluent quality, and also it is good to handle load height, effluent quality And stablizes, the dosage of flocculant and the time of flocculation reaction can be reduced simultaneously.
The present invention provides a kind of impact-resistant efficient air-floating systems, mainly include coagulation area, the first flocculation zone, the second wadding Coagulation zone and mud-water separating area, the coagulation area, the first flocculation zone are respectively equipped with the first agitating device, second in the second flocculation zone Agitating device and third agitating device, the mud-water separating area include air-dissolving air-float area, decanting zone, dross area and clear water zone, institute It states air-dissolving air-float area and the second flocculation zone adjacent is equipped with molten gas release head, edge of the air-dissolving air-float area close to dross area Equipped with mud scraper.
As preferred means, the coagulation area, the first flocculation zone are set using perpendicular stream gallery type structure between the second flocculation zone It sets.
As further preferred means, liquid level upper end is equipped with coagulant dosage mouth in the coagulation area.
As further preferred means, first flocculation zone bottom end is equipped with flocculant concentration mouth.
As further preferred means, the molten gas release head includes molten gas amplifier and Gas dissolving pipe, Gas dissolving pipe setting Below molten gas amplifier, Gas dissolving pipe generates microbubble abundant.
As further preferred means, the decanting zone top is equipped with inclined tube layer, and lower part is equipped with sedimentation bucket, the inclined tube Layer is equipped with inclined inclined tube, and the tilt angle of inclined tube is 60 °, and inclined tube length is 75cm.
A kind of sewage water treatment method of impact-resistant efficient air-floating, the specific steps are as follows:
1) add coagulant: pending water is passed into coagulation area, in coagulation area liquid level upper end dosing coagulant, by the By coagulant and pending water coagulation, pending water flows out coagulation area from top to bottom and enters the first flocculation zone bottom one agitating device End;
2) it adds flocculant: adding flocculant in the first flocculation zone bottom end, processing water flows out the first flocculation zone from bottom to up The second flocculation zone top is entered, flocculant is mixed with processing water by the second agitating device, flows into the second flocculation zone, then Reach flocculant with processing water uniformly to mix and flocculated effect;
3) mud-water separation: the water outlet of the second flocculation zone flows into air-dissolving air-float area from bottom to top, and the setting of air-dissolving air-float area is multiple high Molten gas release head is imitated, molten gas release head generates microbubble abundant, and flocculation zone is discharged under the action of microbubble, in air-dissolving air-float Area carries out mud-water separation, and flocculate accumulates in air-dissolving air-float area water surface upper end, a part fails under the buoyance lift effect of microbubble The bulky grain or heavier suspended matter floated, then flow through inclined tube from top to bottom, under the precipitation of inclined tube, realizes effective cut Removal is stayed, the particle or suspended matter to float on the surface is scraped into particle or suspended matter in dross area by mud scraper;
4) draining, spoil disposal: the water gone out from inclined tube laminar flow is flowed into clear water zone by decanting zone, and the sludge of inclined tube layer retention is heavy It forms sediment in sedimentation bucket, is arranged sludge by sedimentation bucket.
By the way of being combined the invention has the advantages that: the device using flotation and tube settling, cleverly by air bearing Function and the precipitating function of inclined tube be combined together, when water SS fluctuation is larger, top flotation, which can not achieve, to be effectively removed SS, can further be removed by the inclined tube of lower part, and be concurrent tube settling, concurrent is due to water (flow) direction It is identical as particle sedimentation direction, it can also settle, solve incorgruous by impulsive force even if large viscosity, particle difficult to settle The problems such as stream, the blocking of lateral flow middle swash plate, and theoretical sedimentation effect is best, either draws since lighter SS quantity increases suddenly Water inlet fluctuation caused by the unexpected increase of the water inlet fluctuation or heavier SS that rise, can be realized by the device and be effectively removed, When SS of intaking is from the fluctuation of tens mg/L to 1000mg/L, stable effluent quality, and handle load height, effluent quality Well and stablizes, the dosage of flocculant and the time of flocculation reaction can be reduced simultaneously.
Detailed description of the invention
Fig. 1 is a kind of impact-resistant efficient air-floating system structure diagram proposed by the present invention.
In figure: 1, the first agitating device;2, the second agitating device;3, third agitating device;4, molten gas release head;5, inclined tube Layer;6, mud scraper;11, coagulation area;12, the first flocculation zone;13, the second flocculation zone;14, mud-water separating area;14-1, air-dissolving air-float Area;14-2, decanting zone;14-3, dross area;14-4, clear water zone;21, pending water;22, coagulant;23, flocculant;24, it presses Contracting air;25, it is discharged;26, deslagging;27, spoil disposal.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing:
A kind of impact-resistant efficient air-floating system of the invention mainly includes coagulation area 11, the first flocculation zone 12, second wadding Coagulation zone 13 and mud-water separating area 14, the coagulation area 11, the first flocculation zone 12 are respectively equipped with the first stirring in second flocculation zone 13 Device 1, the second agitating device 2 and third agitating device 3, the mud-water separating area 14 include air-dissolving air-float area 14-1, decanting zone 14-2, dross area 14-3 and clear water zone 14-4, the air-dissolving air-float area 14-1 are equipped with molten gas with 13 adjacent of the second flocculation zone and release First 4 are put, the air-dissolving air-float area 14-1 is equipped with mud scraper 6 close to the edge of dross area 14-3.
The coagulation area 11, the first flocculation zone 12, between the second flocculation zone 13 using perpendicular stream gallery type structure setting.
Liquid level upper end is equipped with coagulant dosage mouth in the coagulation area 11.Coagulant is added to mixed by coagulant dosage mouth 11 liquid level upper end of coagulation zone is uniformly mixed coagulant with pending water 21 by the first agitating device 1.Coagulant is FeCl3, throw Dosage is added at 5-20mg/L (in terms of Fe) using pipeline.
First flocculation zone, 12 bottom end is equipped with flocculant concentration mouth.Flocculant is added to first by flocculant concentration mouth 12 bottom end of flocculation zone, processing water flows from bottom to up, and is stirred by the second agitating device 2 so that flocculant is uniformly mixed with water With flocculated effect.Flocculant concentration PAM, dosage 0.3-0.5mg/L, pipeline add.
The molten gas release head 4 includes molten gas amplifier and Gas dissolving pipe, and Gas dissolving pipe is arranged below molten gas amplifier, molten gas Pipe generates microbubble abundant.
The top the decanting zone 14-2 is equipped with inclined tube layer 5, and lower part, which is equipped with, settles bucket, and sedimentation bucket is taper bucket, described oblique Tube layer 5 is equipped with inclined inclined tube, and the tilt angle of inclined tube is 60 °, and inclined tube length is 75cm, inclined tube material PP.Inclined tube can change At inclined plate.
Raw water 21 to be processed initially enters coagulation area 11, under the stirring action of coagulation blender 1, realizes 22 He of coagulant The uniform mixing of raw water 21, it is ensured that system coagulation effect.Coagulation water outlet enters the first flocculation zone 12, and flocculant is added in this area 23, the impurity in water flocculates in the effect of flocculant, further assembles subsequently into 13 floccule body of the second flocculation zone and grows up, two-stage Flocculation is all made of mechanical stirring, sufficiently to realize flocculation reaction.Water after flocculation enters mud-water separating area 14, flows through from bottom to top Molten gas discharges area 14-1, and molten gas release area is arranged multiple high-efficiency dissolued-air release heads 4, can produce microbubble abundant.Flocculation zone goes out Water carries out mud-water separation under the action of microbubble, in mud-water separating area, and flocculate (density is smaller) is made in the buoyance lift of microbubble Under, accumulates in and be known as body refuse on the water surface of Disengagement zone;A part of not floaty bulky grain or heavier suspended matter (density compared with Greatly), then inclined tube is flowed through from top to bottom, under the precipitation of inclined tube, realizes effective retention removal.The setting of Disengagement zone top is scraped Mud machine 6 can scrape 14 top mud scum of mud-water separating area to dross area 14-3, and taper bucket is arranged in lower part, for collecting inclined tube area The sludge of 14-2 retention.
It due to traditional air bearing, needs SS under the action of flocculant, forms big wadding body, be just able to achieve and effectively remove. And the presence of lower part tube settling district, the requirement to flocculating effect is weakened, flocculant dosage can be reduced, shorten flocculation instead Between seasonable, to save operating cost and investment.
A kind of sewage water treatment method of impact-resistant efficient air-floating, the specific steps are as follows:
1) add coagulant: pending water 21 is passed into coagulation area 11, in 11 liquid level upper end dosing coagulant of coagulation area, By the first agitating device 1 by coagulant and pending water coagulation, pending water 21 flows out coagulation area 11 from top to bottom and enters First flocculation zone, 12 bottom end;
2) it adds flocculant: adding flocculant in 12 bottom end of the first flocculation zone, processing water flows out the first flocculation from bottom to up Area 12 enters 13 top of the second flocculation zone, mixes flocculant with processing water by the second agitating device 2, flows into the second flocculation Area 13, then so that flocculant reaches with processing water uniformly mixes and flocculated effect under third agitating device 3;
3) mud-water separation: the water outlet of the second flocculation zone 13 flows into air-dissolving air-float area 14-1, air-dissolving air-float area 14-1 from bottom to top Multiple high-efficiency dissolued-air release heads 4 are set, and molten gas release head 4 generates microbubble abundant, and flocculation zone 14-1 is discharged in microbubble Under effect, mud-water separation is carried out in air-dissolving air-float area 14-1, flocculate accumulates in air-dissolving air-float under the buoyance lift effect of microbubble Area 14-1 water surface upper end, a part of not floaty bulky grain or heavier suspended matter, then flow through inclined tube, in inclined tube from top to bottom Precipitation under, realize effective retention removal, the particle or suspended matter to float on the surface is by mud scraper 6 by particle or outstanding Floating object scrapes into dross area 14-3;
4) draining, spoil disposal: the water flowed out from inclined tube layer 5 is flowed into clear water zone 14-4 by decanting zone 14-2, and inclined tube layer 5 is cut Sludge is discharged in sedimentation bucket, through sedimentation bucket for the sludge settling stayed.
Embodiment
For handling contaminated river: dry season, river water SS is probably fluctuated between 60-100mg/L, rainy season especially heavy rain Season, river water SS may be up to 800-1200mg/L.
River water is put into the impact-resistant efficient air-floating system, coagulation area dosing coagulant FeCl3, dosage 10mg/L (in terms of Fe), coagulation area use mechanical stirring, residence time 2min, mixing speed gradient G=250s-1, K=28;Flocculation zone is thrown Add flocculant PAM, dosage 0.4mg/L, using mechanical stirring, residence time 7min, Stirring energy density=3W.h/m3, out Water SS stablizes in 10mg/L.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.
The present invention is not limited to above to the description of embodiment, the content that those skilled in the art disclose according to the present invention, The improvement and modification that need not be carried out by creative work on the basis of the present invention, all should protection scope of the present invention it It is interior.

Claims (6)

1. a kind of impact-resistant efficient air-floating system, it is characterised in that: mainly include coagulation area (11), the first flocculation zone (12), Second flocculation zone (13) and mud-water separating area (14), the coagulation area (11), the first flocculation zone (12), the second flocculation zone (13) are interior It is respectively equipped with the first agitating device (1), the second agitating device (2) and third agitating device (3), mud-water separating area (14) packet Include air-dissolving air-float area (14-1), decanting zone (14-2), dross area (14-3) and clear water zone (14-4), the air-dissolving air-float area (14- 1) molten gas release head (4) is equipped with the second flocculation zone (13) adjacent, the air-dissolving air-float area (14-1) is close to dross area (14- 3) edge is equipped with mud scraper (6).
2. a kind of impact-resistant efficient air-floating system according to claim 1, it is characterised in that: the coagulation area (11), Using perpendicular stream gallery type structure setting between first flocculation zone (12), the second flocculation zone (13).
3. a kind of impact-resistant efficient air-floating system according to claim 1, it is characterised in that: in the coagulation area (11) Liquid level upper end is equipped with coagulant dosage mouth.
4. a kind of impact-resistant efficient air-floating system according to claim 1, it is characterised in that: first flocculation zone (12) bottom end is equipped with flocculant concentration mouth.
5. a kind of impact-resistant efficient air-floating system according to claim 1, it is characterised in that: the molten gas release head It (4) include molten gas amplifier and Gas dissolving pipe, Gas dissolving pipe is arranged below molten gas amplifier, and Gas dissolving pipe generates microbubble abundant.
6. a kind of impact-resistant efficient air-floating system according to claim 1, it is characterised in that: the decanting zone (14-2) Top is equipped with inclined tube layer (5), and lower part is equipped with sedimentation bucket, and the inclined tube layer is equipped with inclined inclined tube, and the tilt angle of inclined tube is 60 °, inclined tube length is 75cm.
CN201820720616.XU 2018-05-15 2018-05-15 A kind of impact-resistant efficient air-floating system Expired - Fee Related CN208413913U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108455695A (en) * 2018-05-15 2018-08-28 易能环境技术有限公司 A kind of impact-resistant efficient air-floating system and its sewage water treatment method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108455695A (en) * 2018-05-15 2018-08-28 易能环境技术有限公司 A kind of impact-resistant efficient air-floating system and its sewage water treatment method

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Granted publication date: 20190122

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