CN104310653A - Method for sewage treatment through co-agglomeration gas flotation method - Google Patents

Method for sewage treatment through co-agglomeration gas flotation method Download PDF

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Publication number
CN104310653A
CN104310653A CN201410607491.6A CN201410607491A CN104310653A CN 104310653 A CN104310653 A CN 104310653A CN 201410607491 A CN201410607491 A CN 201410607491A CN 104310653 A CN104310653 A CN 104310653A
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Prior art keywords
flocculation
water
zone
air
float
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CN201410607491.6A
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CN104310653B (en
Inventor
王永磊
陈文娟
张克峰
李梅
贾瑞宝
宋武昌
楚广诣
孔令华
贾伟建
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Shandong Jianzhu University
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Shandong Jianzhu University
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

Abstract

The invention relates to a sewage treatment method, in particular to a method for sewage treatment through a co-agglomeration gas flotation method, which integrates a clarification function with a gas flotation function together. The method comprises the following steps: (1) feeding raw water to a primary flocculation zone to be flocculated; (2) feeding the water to a secondary flocculation zone for contact agglomeration, and further conducting agglomeration gas flotation; (3) feeding the water to a gas flotation contact zone, conducting contact agglomeration on the gas trapped flocculation particles with gas dissolved water released by a releaser, enabling the the gas trapped flocculation particles to be in full contact with microbubbles to form co-agglomerated large bubble flocculation; (4) feeding the water to a solid-liquid separation zone. The method disclosed by the invention has the benefits that the conventional mechanical agitation clarification tank is organically combined with the gas floatation technology, the method organically combines the working procedures comprising mixing, primary flocculation, secondary flocculation, gas floatation, settling, and sludge reflux contact flocculation together; the gas dissolved water microbubbles directly participate in agglomeration and are co-agglomerated with flocculation to become large; the bubbles are placed inside the flocculated particles, so that the effect of agglomeration of the bubbles is fully played and the bubbles are firmly adhered to the flocculated particles to achieve co-agglomeration gas flotation.

Description

A kind of method that copolymerizing and air-float method is disposed of sewage
Technical field
The present invention relates to a kind of sewage water treatment method, particularly a kind of method integrating clarification and the copolymerizing and air-float method of air supporting function and dispose of sewage.
Background technology
Current reservoir water source pollution problem becomes increasingly conspicuous, and wherein algae pollution is particularly serious.Current reservoir water easily presents many algaes in summer, the low turbid characteristic of winter low temperature.Along with water source Eutrophic Extent aggravates year by year, algae reproduction is increasingly serious, and especially at the spring and autumn that temperature variation is larger, alga eruption phenomenon happens occasionally, and causes certain threat to the operation of water factory and water supply security.The density of algae is little, traditional coagulation, precipitation, filtration process are difficult to it effectively to remove, bring the series of problems such as filter tank blocks, backwashing period shortens, processing cost increases, effluent quality variation, some algae also can produce Algae toxins under certain circumstances, threatens to water supply security.
Flocculation and precipitation two process units are incorporated in structures and complete by settling pond, rely on active sludge slime layer to reach clarification object, have good turbidity removal effect.But for high algae, high organism and low temperature and low turbidity water, treatment effect is undesirable.
Tradition air-float technology as one efficiently, fast solid-liquid separation technique be promoted in water treatment field, be comparatively widely used in the purifying treatment of low temperature, low turbid and algae body at present.But the mode that traditional air flotation technology adopts dissolved air water once to reflux; namely former water refluxes dissolved air water after abundant coagulation; microbubble does not participate in particle coagulation process; microbubble adheres to de-steady particle collision, microbubble contact with particle collision delayed, duration of contact is short, the secondary being equivalent to microbubble and flco flocculates; flocculation process is longer; and the interpolymerization of microbubble and flco in Water treatment, can not be given full play to, the adhesive efficiency of microbubble and flco is not high, and microbubble effective rate of utilization is low.
Summary of the invention
The method that copolymerizing and air-float method of the present invention is disposed of sewage, height algae height organism in summer, the low turbid water body characteristic of winter low temperature is presented for current reservoir water, traditional accelerator and air-float technology are organically combined, collaborative solid-liquid separation is carried out in air supporting and precipitation, removes the less algae of density better.
The present invention is realized by following measures:
The method that copolymerizing and air-float method of the present invention is disposed of sewage, is characterized in that adopting following steps:
(1) after former water dosing, enter water distributing area, enter one-level flocculation zone afterwards, under the rotation of mechanical stirring oar, flocculate together with the mud of returning;
(2) after one-level flocculation, promoted by lifting impeller and enter secondary flocculation zone, the dissolved air water discharged with reliever in secondary flocculation zone carries out contacting and condenses, and carries out copolymerizing and air-float, form scum silica frost after the bubble flocs float that density is less, air-flotation scum enters scum silica frost groove through scraping slag equipment;
(3) water behind secondary flocculation zone enters contact zone of dissolved air flotation again, and the dissolved air water that flocs with gas discharges with reliever again carries out contacting and condenses, and flocs with gas fully contacts with microbubble, forms copolymerization bulla flco;
(4) water behind contact zone of dissolved air flotation enters solid-liquid displacement zone, forms scum silica frost after the bubble flocs float that density is less, and air-flotation scum enters scum silica frost groove through scraping slag equipment; Heavier particle sinks at the bottom of pond, enters one-level flocculation zone and carries out contact flocculation.
The method that the copolymerizing and air-float method of the invention described above is disposed of sewage, in order to improve copolymerizing and air-float effect, the flow velocity of contact zone of dissolved air flotation is 10 ~ 20mm/s, and sewage is 10-20min in the residence time of one-level flocculation zone, and wherein the secondary flocculation zone residence time is about 5-10min.
The method that the copolymerizing and air-float method of the invention described above is disposed of sewage, in order to improve copolymerizing and air-float effect, the total add-on of dissolved air water accounts for the 10%-20% of sewage total inflow, wherein, the add-on of secondary flocculation zone dissolved air water accounts for 1/3 of dissolved air water total amount, and the add-on of contact zone of dissolved air flotation dissolved air water accounts for 2/3 of dissolved air water total amount.
The method that the copolymerizing and air-float method of the invention described above is disposed of sewage, in order to improve copolymerizing and air-float effect, the water behind secondary flocculation zone enters contact zone of dissolved air flotation from bottom; Water behind contact zone of dissolved air flotation enters solid-liquid displacement zone from top.
The method that the copolymerizing and air-float method of the invention described above is disposed of sewage, the straight 20-50mm of the microbubble in dissolved air water, after copolymerizing and air-float, the diameter of gas enclosure wadding grain is 100-300mm.
Present height algae height organism in summer for current reservoir water, the low turbid water quality characteristic of winter low temperature, the problem that traditional accelerator treatment effect is poor more.A kind of new-type air-floatation settling pond of this art inventions, traditional accelerator and air-float technology are organically combined, comprise the operations such as mixing, one-level flocculation, secondary flocculation, air supporting, precipitation and sludge reflux contact flocculation to organically combine, and integrated, tackle high algae, the low Reservoir Water Quality such as turbid has outstanding advantage.
Dissolved air water in traditional air-float technology once adds by present invention process, changes twice into and adds, and first adds part dissolved air water when flocculation reaction, adds rest part dissolved air water again after reaction terminates.Like this can when the micro-wadding grain of step of reaction be just formed, increase probability of collision because microbubble adds and accelerate cohesion speed, air supporting organically combines with flocculation, and enhanced flocculation process and effect, this is one of this process innovation.More significant advantage is, bubble participate in directly cohesion and and wadding grain copolymerization large, bubble is clipped in the middle of wadding grain, both the cohesion of bubble had been given full play to, securely bubble adhesion is being wadded a quilt with cotton on grain again, thus making flocs with gas not only stable in floating-upward process, and also do not sinking easily after becoming scum silica frost, the air supporting that this interpolymerization is good, is called " copolymerizing and air-float ".Copolymerizing and air-float and conventional air-float technology have remarkable difference, conventional air supporting be only perfect for reaction, wadding grain has been tied greatly, bubble mainly sticks to and wads a quilt with cotton around grain.Due to the good stability of the gas enclosure wadding grain that copolymerizing and air-float is formed, little by weather, the advantages such as the required hybrid reaction time is short, have a wide range of applications future.
Notably select suitable GT value and the ratio of twice dissolved air water dosage in copolymerizing and air-float technique, should avoid causing bubble self to collide also flocs with gas that is large and reaction period generation in reaction tank, float up to the situation of the water surface.For creating copolymerization conditions, after former water dosing, taking Quick mechanical to stir, making the equivalent diameter of micro-wadding grain of formation be substantially equal to microbubble diameter 20-50mm.Under such condition, after copolymerization, gas enclosure wadding grain is at more than 100mm.
Tradition flotation waste water treatment mechanism is that former water carries out collision with the microbubble passed into and adheres to after coagulation pretreatment, coagulation mechanism be carry out that electrical counteract takes off surely with its hydrolyzation morphology and aquatic particle, adsorption bridging or adhere to volume sweep and generate thick flco again air supporting be separated removal.Mainly bubble and the collision of wadding grain adhere to flotation waste water treatment mechanism, the net of grain of wadding a quilt with cotton is caught, winding and bridging action.Copolymerizing and air-float is different from traditional flotation waste water treatment technique, key is that dissolved air water classification refluxes, elementary flocculation time is short, and microbubble participates in flco coagulation process directly, and microbubble and the copolymerization of wadding grain are also greatly, the flco bubble that interpolymerization produces is clipped in the middle of wadding grain, as shown in Figure 1, both gave full play to the cohesion of bubble, securely bubble adhesion had been wadded a quilt with cotton on grain again, thus making flocs with gas stable in floating-upward process, the scum silica frost of formation also not easily sinks.In this technique, in one-level flocculation process, main coagulation mechanism is that electrical counteract takes off steady mechanism, and volume caught by its adsorption bridging and net, and to sweep mechanism of action relatively weak.In secondary flocculation process, due to passing into for the first time of dissolved air water, microbubble and particle adhesion dominant mechanism are collision adhesion and the copolymerization adhesive attraction of microbubble and flco, in contact zone of dissolved air flotation air supporting bubble wadding adhesion process, the collision that Water clarifying mechanism is mainly microbubble and bubble flco adheres to and the net steeped between flco-microbubble-particulate matter is caught, winding and bridging action.
Beneficial effect of the present invention
(1) a kind of new-type air-floatation settling pond of this art inventions, traditional accelerator and air-float technology are organically combined, comprise the operations such as mixing, one-level flocculation, secondary flocculation, air supporting, precipitation and sludge reflux contact flocculation to organically combine, and integrated, tackle high algae, the low Reservoir Water Quality such as turbid has outstanding advantage.
(2) microbubble adds secondary flocculation zone, participates in flocculation process, and increase wadding grain probability of collision and accelerate cohesion speed, air supporting organically combines with flocculation, enhanced flocculation process and effect.Dissolved air water participates in flocculation process and saves added amount of chemical.
(3) dissolved air water microbubble participate in directly cohesion and and wadding grain copolymerization large, bubble is clipped in the middle of wadding grain, has both given full play to the cohesion of bubble, again securely bubble adhesion on wadding grain, form " copolymerizing and air-float ".
(4) air floating settling pond operation scheme is flexible.During former algae class concentration height, open air-float technology, when former algae class concentration is low, can air supporting be stopped, run traditional mechanical clarification process, therefore, it is possible to effectively reduce working cost, and, because air flotation cell starts fast, permission intermittent operation, so than being easier to the switching realizing two operation scheme.
(5) air supporting and precipitation carry out collaborative solid-liquid separation effect.The algae that density is less, particulate matter are removed by air supporting, and the particulate matter that density is larger, wadding grain are removed by precipitation, and both complete collaborative solid-liquid separation in quiet environment.
 
Accompanying drawing explanation
Fig. 1 is waste water processes schematic diagram of the present invention
Fig. 2 is air floating settling pond structural representation of the present invention
Fig. 3 is the microscopic examination figure of copolymerization of the present invention bubble flco, wherein: A. copolymerization bulla flco; B. flco microscopic pattern is steeped.
In figure, 1. water inlet pipe; 2. intake water distributing area; 3. one-level flocculation zone; 4. stirring rake; 5. promote impeller; 6. agitator; 7. secondary flocculation zone; 8. contact zone of dissolved air flotation; 9. solid-liquid displacement zone; 10. outlet canal; 11. scum silica frost grooves; 12. scrape slag equipment; 13. rising pipes; 14. blow-down pipes; 15. shore pipes; 16. molten gas recirculation waters; 17. relievers.
 
Embodiment
one: air float pool structure
As depicted in figs. 1 and 2, air floating settling pond comprises one-level flocculation zone 3, secondary flocculation zone 7, contact zone of dissolved air flotation 8, solid-liquid displacement zone 9 and the composition such as clear water drained zone 10 and sludge reflux district to air floating settling pond of the present invention.
Concrete structure is: air floating settling pond one-piece construction top is cylindrical, and bottom conically.
One-level flocculation zone 3 is positioned at the bottom of air floating settling pond, tapered, is provided with agitator 6 and stirring rake 4 and water inlet pipe 1 and water inlet water distributing area 2.
Above one-level flocculation zone, be from inside to outside distributed with secondary flocculation zone 7, contact zone of dissolved air flotation 8, solid-liquid displacement zone 9 successively, in concentric structure.The bottom of secondary flocculation zone and contact zone of dissolved air flotation 8 is equipped with reliever 17, and reliever is connected with molten gas recirculation water 16.Be connected by promoting impeller 5 between secondary flocculation zone with one-level flocculation zone, the bottom of secondary flocculation zone 7 and contact zone of dissolved air flotation 8 is equipped with the reliever 17 of release dissolved air water, the top of secondary flocculation zone, contact zone of dissolved air flotation and solid-liquid displacement zone is equipped with scrapes slag equipment 12 and scum silica frost groove 11, and the top of solid-liquid displacement zone connects outlet canal 10, bottom is connected with one-level flocculation zone.
In secondary flocculation zone, each reliever service area is about 2-3m 2, in contact zone of dissolved air flotation, each reliever service area is about 1-2m 2.
two: summer treatment process is as follows:
Pending water is reservoir water, and in height algae season in summer, it is 5.0 × 10 containing algae amount 7individual/L, turbidity is 5-20NTU.
Reservoir water adds aluminium iron polychloride (PAFC), and dosage is that 4mg/L(is with Al 3+meter), enter water distributing area, enter one-level flocculation zone afterwards, under the rotation of mechanical stirring oar, flocculate together with the mud of returning.
After one-level flocculation, promoted by lifting impeller and enter secondary flocculation zone, the dissolved air water discharged with reliever in secondary flocculation zone carries out contacting and condenses, and carries out copolymerizing and air-float, form scum silica frost after the bubble flocs float that density is less, air-flotation scum enters scum silica frost groove through scraping slag equipment.The 5%(that the add-on of secondary flocculation zone dissolved air water accounts for sewage total inflow accounts for 1/3 of dissolved air water total amount).
Water behind secondary flocculation zone enters contact zone of dissolved air flotation again, and the dissolved air water that flocs with gas discharges with reliever again carries out contacting and condenses, and flocs with gas fully contacts with microbubble, forms copolymerization bulla flco; In contact zone of dissolved air flotation, 10 %(that the add-on of contact zone of dissolved air flotation dissolved air water accounts for sewage total inflow account for 2/3 of dissolved air water total amount).
Water behind contact zone of dissolved air flotation enters solid-liquid displacement zone, forms scum silica frost after the bubble flocs float that density is less, and air-flotation scum enters scum silica frost groove through scraping slag equipment; Heavier particle sinks at the bottom of pond, enters one-level flocculation zone and carries out contact flocculation.
Wherein, one-level flocculation zone 3 and secondary flocculation zone 7 total residence time are about 20min-30min, wherein the secondary flocculation zone residence time is about 5-10min, the cumulative volume of one-level flocculation zone is about 10min-20min, the flow cavitation result speed of contact zone of dissolved air flotation is 10 ~ 20mm/s, residence time 2-5min, the flow cavitation result speed of solid-liquid displacement zone is 1.5 ~ 2.5mm/s, surface load 5.0-9.0m 3/ m 2.h.
Microbubble diameter 20-50mm in dissolved air water, after copolymerizing and air-float, the diameter of gas enclosure wadding grain is 100-300mm.As shown in Figure 3.
Water after above-mentioned process, containing algae amount is altogether 3.0 × 10 5individual/L, turbidity is 0.70NTU.
three, winter treatment process
Above-mentioned reservoir water, the in the winter time water quality characteristic of low-temperature and low turbidity, it is 7.0 × 10 containing algae amount 5individual/L, turbidity is 2-5NTU.
Adopt aforesaid device, in treatment process, stop adding of dissolved air water, carry out flocculating, clarifying.Its water outlet is containing algae amount 4.5 × 10 5individual/L, turbidity is 0.85NTU.

Claims (6)

1. a copolymerizing and air-float method method of disposing of sewage, is characterized in that adopting following steps:
(1) after former water dosing, enter water distributing area, enter one-level flocculation zone afterwards, under the rotation of mechanical stirring oar, flocculate together with the mud of returning;
(2) after one-level flocculation, promoted by lifting impeller and enter secondary flocculation zone, the dissolved air water discharged with reliever in secondary flocculation zone carries out contacting and condenses, and carries out copolymerizing and air-float, form scum silica frost after the bubble flocs float that density is less, air-flotation scum enters scum silica frost groove through scraping slag equipment;
(3) water behind secondary flocculation zone enters contact zone of dissolved air flotation again, and the dissolved air water that flocs with gas discharges with reliever again carries out contacting and condenses, and flocs with gas fully contacts with microbubble, forms copolymerization bulla flco;
(4) water behind contact zone of dissolved air flotation enters solid-liquid displacement zone, forms scum silica frost after the bubble flocs float that density is less, and air-flotation scum enters scum silica frost groove through scraping slag equipment; Heavier particle sinks at the bottom of pond, enters one-level flocculation zone and carries out contact flocculation.
2. the copolymerizing and air-float method according to claim 1 method of disposing of sewage, it is characterized in that: the flow velocity of contact zone of dissolved air flotation is 10 ~ 20mm/s, sewage is 10-20min in the residence time of one-level flocculation zone, and wherein the secondary flocculation zone residence time is about 5-10min.
3. the copolymerizing and air-float method according to claim 1 and 2 method of disposing of sewage, it is characterized in that: the total add-on of dissolved air water accounts for the 10%-20% of sewage total inflow, wherein, the add-on of secondary flocculation zone dissolved air water accounts for 1/3 of dissolved air water total amount, and the add-on of contact zone of dissolved air flotation dissolved air water accounts for 2/3 of dissolved air water total amount.
4. the copolymerizing and air-float method according to claim 1 and 2 method of disposing of sewage, it is characterized in that: in secondary flocculation zone, each reliever service area is about 2-3m 2, in contact zone of dissolved air flotation, each reliever service area is about 1-2m 2.
5. the copolymerizing and air-float method according to claim 1 and 2 method of disposing of sewage, is characterized in that: the water behind secondary flocculation zone enters contact zone of dissolved air flotation from bottom; Water behind contact zone of dissolved air flotation enters solid-liquid displacement zone from top.
6. the copolymerizing and air-float method according to claim 1 and 2 method of disposing of sewage, is characterized in that: the straight 20-50mm of the microbubble in dissolved air water, and after copolymerizing and air-float, the diameter of gas enclosure wadding grain is 100-300mm.
CN201410607491.6A 2014-11-03 2014-11-03 A kind of method that copolymerizing and air-float method is disposed of sewage Active CN104310653B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105502549A (en) * 2016-01-21 2016-04-20 山东建筑大学 Copolymerization flotation-sedimentation tank and water purification method
CN107055954A (en) * 2017-03-30 2017-08-18 山东建筑大学 A kind of charcoal circular form pool water cleaning systems and method
CN107512799A (en) * 2017-09-11 2017-12-26 天津大学 The method of chitin modified clay and its algae removal technology application
CN113321260A (en) * 2021-03-31 2021-08-31 华北理工大学 Vertical flow type double-flow-path air floatation separation device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156648A (en) * 1978-05-30 1979-05-29 The United States Of America As Represented By The Secretary Of The Navy Flotation device with pretreatment
CN202729923U (en) * 2012-07-30 2013-02-13 华油惠博普科技股份有限公司 Backflow type high-efficiency air-dissolved air flotation device
CN103922506A (en) * 2014-04-14 2014-07-16 江苏新纪元环保有限公司 Integrated complete equipment for water quality purification treatment
CN103964529A (en) * 2014-03-21 2014-08-06 山东建筑大学 Mixed-flowair-flotationwater purification method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156648A (en) * 1978-05-30 1979-05-29 The United States Of America As Represented By The Secretary Of The Navy Flotation device with pretreatment
CN202729923U (en) * 2012-07-30 2013-02-13 华油惠博普科技股份有限公司 Backflow type high-efficiency air-dissolved air flotation device
CN103964529A (en) * 2014-03-21 2014-08-06 山东建筑大学 Mixed-flowair-flotationwater purification method
CN103922506A (en) * 2014-04-14 2014-07-16 江苏新纪元环保有限公司 Integrated complete equipment for water quality purification treatment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105502549A (en) * 2016-01-21 2016-04-20 山东建筑大学 Copolymerization flotation-sedimentation tank and water purification method
CN105502549B (en) * 2016-01-21 2017-12-15 山东建筑大学 One kind copolymerization floating depositing pool and process for purifying water
CN107055954A (en) * 2017-03-30 2017-08-18 山东建筑大学 A kind of charcoal circular form pool water cleaning systems and method
CN107055954B (en) * 2017-03-30 2020-10-09 山东建筑大学 Biochar circulation type copolymerization air flotation tank water purification system and method
CN107512799A (en) * 2017-09-11 2017-12-26 天津大学 The method of chitin modified clay and its algae removal technology application
CN113321260A (en) * 2021-03-31 2021-08-31 华北理工大学 Vertical flow type double-flow-path air floatation separation device

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