CN100390078C - Gas lifting alternative circulation flow composite filter material filter pool - Google Patents

Gas lifting alternative circulation flow composite filter material filter pool Download PDF

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Publication number
CN100390078C
CN100390078C CNB2006100386924A CN200610038692A CN100390078C CN 100390078 C CN100390078 C CN 100390078C CN B2006100386924 A CNB2006100386924 A CN B2006100386924A CN 200610038692 A CN200610038692 A CN 200610038692A CN 100390078 C CN100390078 C CN 100390078C
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pond
zone
filter tank
filter
filter material
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CN1821120A (en
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蔡建安
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Anhui University of Technology AHUT
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Anhui University of Technology AHUT
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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Abstract

The present invention provides a gas lifting alternative circulation flow filter pool for composite filter materials, which belongs to a high-efficiency bioreactor in the water resource conservation field and has an outer circulation structure and an inner circulation structure. A changed circulation flow is obtained by using a switching valve to alternately supply gas to aerators in two areas. The composite filter materials alternately work in an upward flow area and a downward flow area, which optimizes working environment. A biomembrane process and filtration technology are utilized to synchronously remove organic substances and ammonia nitrogen. Solid-liquid separation operation, backflushing operation and defilming operation are not added, and the automatic update under the treatment operating condition is completed; the suspended filter materials are sealed, which raises the volume load; aeration operation provides the water flow circulation dynamic force of gas lifting, oxygenation sources and backflushing, and therefore, the energy is saved. The present invention has great superiority in the aspects of construction investment, operation management and treatment effects and can become a new generation reactor for replacing an aeration biological filter tank and a gas lifting circulation fluidized bed.

Description

Gas lifting alternative circulation flow composite filter material filter pool
Technical field
The invention belongs to the new and effective bio-reactor in water resources protection field, be specifically related to a kind of gas lifting alternative circulation flow composite filter material filter pool.
Background technology
The gentle lift circular fluidizing of BAF has diverse structure formation, is two kinds of important process of present water treatment field.Biological aerated filter process, the filler (or filtrate) that adopts has stacking formula and suspension two classes, stacking formula filtrate integrates biological treatment and filters two kinds of functions, but need often carry out back flushing and cooperate sedimentary subsequent disposal, particle diameter of filter medium is more little, and effective surface area is big more, the treatment effect of BAF is good more, but the small particle size porosity is little, flow resistance is big, stop up easily, and its work period is shortened, and filtrate is easy cleaning not also; The suspension filtrate mainly contains soft fiber filtrate and medium-soft filtrate, and its flow resistance is little, biofilm and handling property are good, but can not play a role in filtering substantially; Flow-shape is undesirable, is easily bonded together by microbial film, produces the balling phenomenon.Gas lift circular fluidizing technology, though have the characteristics of high volumetric efficiency and high loading, because carrier is easy to deposition, the biofilm difficulty is big, goes into operation and the recovery operation complexity.Just because of these drawbacks limit the application of above-mentioned technology in water treatment.
Summary of the invention
The object of the present invention is to provide a kind of gas lifting alternative circulation flow composite filter material filter pool of brand new, the advantage of the gentle lift circular fluidizing technology of BAF can be given full play in this filter tank, has overcome shortcoming separately simultaneously.Under the aeration condition, utilize the gas content difference to form pressure difference, cause fluidic to circulate and be called the gas lifting.Gas lifting alternative circulation flow composite filter material filter pool provided by the present invention has outer circulation and two kinds of structures of internal recycle, and two kinds of structures are except that pond, filter tank bodily form formula is distinguished to some extent, and other composition and working process are identical.Accompanying drawing 1 and accompanying drawing 2 are respectively the gas lifting alternative circulation flow composite filter material filter pool structural representation, and wherein accompanying drawing 1 is the outer circulation structure, and accompanying drawing 2 is inner circulation structures.
There are two symmetric substantially zones " I " and " II " in filter tank provided by the present invention, and pond, outer circulation structure filter tank body 12 is these symmetric upright void towers of two foundation, forms zone " I " and " II ", is connected in top and the bottom respectively by two transverse tubes 8; Pond, inner circulation structure filter tank body 12 uses vertical pond internal partition 9 full pond to be divided into two zones " I " and " II " that communicates up and down with general filter tank; In the zone " I " and " II " composite filtering material is installed respectively, what be positioned at the bottom is suspension type filtrate 6, and what be positioned at the upper strata is granule filter material 7, under the granule filter material layer of bottom, zone " I " and upper middle aerator 4 is arranged; Under the granule filter material layer of bottom, zone " II " and upper middle aerator 5 is arranged, pond, filter tank body 12 is outer to be provided with blower fan 1 and two switching valves 2 and 3, blower fan 1 links to each other with 3 with two switching valves 2 respectively, two switching valves 2,3 link to each other with the interior aerator of zone " I " and " II " respectively by pipeline, water-in 10 all is positioned at the top, filter tank with overflow port 11, directly do not connect with body top, pond, the water-in upper edge is a little more than body top, pond, overflow port 11 tops flush with body top, pond, in establish overflow weir and be lower than overflow port top 15-50cm, the water-in bottom connects water inlet pipe, the overflow port bottom connects rising pipe; Inlet tube and outlet tube is communicated with the pond body at pond body middle part.
The working process of gas lifting alternative circulation flow composite filter material filter pool provided by the present invention is as follows: after blower fan 1 starts among the figure, replace to aerator 4 that is positioned at zone " I " and " II " and 5 air feed by two switching valves 2 and 3, aerator air feed in the zone " I " and " II " does not take place simultaneously, owing to carry out the gas castering action in the aeration zone, form in the pond and circulate, the zone that aeration takes place is the up-flow district, the zone of aeration is not to fall the stream district, two regional alternative aerations, zone " I " and zone " II " alternately become the up-flow district and fall the stream district, and the cycling stream direction also alternately changes.In two zones composite filtering material is installed respectively, the suspension type filtrate 6 that is positioned at bottom, up-flow district is in the air water upward flow and handles operating mode, the granule filter material floor 7 on top, up-flow district is in the air-water backwashing operating mode, filtering layer expands and fluidisation takes place, be positioned at the suspension type filtrate 6 that falls the Liu Qu bottom and be in down and handle operating mode to stream, the granule filter material 7 that falls Liu Qu top is in down to flowing through the filter operating mode.When work in the filter tank, water inlet continues to enter the filter tank by water-in 10 through water inlet pipe, and current are evenly distributed, and do not need to be provided with water distribution system; Water outlet does not need to be provided with complicated solid-liquid separation outlet system through filtering, and only simply uses rising pipe to be connected to overflow port 11 and discharges.
Though it is different that internal recycle and outer circulation gas lifting alternative circulation flow composite filter material filter pool structure formation have, operation mechanism is just the same, and the biomembrance process that belongs to water treatment adds filtration process.Compare with gas lift circular fluidizing technology, difference is carrier; Do not had the filtrate that circulates and increased filtering function, thereby avoided solid-liquid separation, carrier deposition and trouble such as fluidisation again; Compare with biological aerated filter process, gas promotes circular flow and forms good hydraulics, makes processing pollution load and hydraulic load separate; District's polyphone flows with falling in the up-flow district, and one is in the back flushing operating mode, and one is in the filtration operating mode, and by replacing air feed, the direction of cycling stream replaces variation, handles under the operating mode and upgrades automatically; Used composite filtering material, formed in water treatment and have complementary advantages, filtering granule filter material can not stop up, and the suspension type filtrate adopts to encrypt and arranges, has improved volumetric loading.The back flushing effect has been played in water circulation power, oxygenation source that the aeration flow both provided gas to promote again, has saved the energy thereby multiple function rolls into one.
Advantage of the present invention shows as: have the biological treatment and the filtering function of BAF, but do not need back flushing, do not need settling tank; Have gas lift circular fluidizing circulatory function, the volumetric efficiency height, but go into operation and simple and convenient management stable working state; There is different local oxygen concns in the filter tank simultaneously, more meets the requirement of biodynamics reaction environment, can remove organism and ammonia nitrogen synchronously.Therefore, the present invention will be with it at the greater advantage that is had aspect construction investment, operational management and the treatment effect, and becomes the reactor of new generation that substitutes the gentle lift circular fluidizing of BAF.
Description of drawings
Fig. 1 is the outer circulation structural representation of gas lifting alternative circulation flow composite filter material filter pool of the present invention
Fig. 2 is the inner circulation structure synoptic diagram of gas lifting alternative circulation flow composite filter material filter pool of the present invention
Among the figure 1: blower fan, 2: switching valve, 3: switching valve, 4: aerator, 5: aerator
6: suspension type filtrate, 7: granule filter material, 8: transverse tube, 9: the pond internal partition
10: water-in, 11: overflow port, 12: pond, filter tank body
Embodiment
Accompanying drawing 1 is an outer circulation structure gas lifting alternative circulation flow composite filter material filter pool.Pond, filter tank body 12 is these symmetric upright void towers of two foundation, and aspect ratio＞8 use steel or engineering plastics to make, for considering to install, upright tower divisional use is blue to be connected, and the void tower internal upper part is established supportive grid, granule filter material 7 is installed, and the bottom is established fixed frame suspension type filtrate 6 is installed.When fixed frame was installed the suspension type filtrate, employing 1.5 was extraordinarily close under original standard.Based on installing and the maintenance consideration, upright tower side has gathering hole.Two transverse tubes 8 connect straight tower, make it respectively in the top and the bottom perforation, and top connects the position and is higher than the expansion height that granule filter material takes place, and the bottom connects the position and is lower than suspension type filtrate installation lower edge; Water-in 10 water levels continue to be fed into former water a little more than water level in the filter tank by water inlet pipe.Water outlet continues to discharge to overflow port 11 by rising pipe, and overflow weir is a little less than water level in the filter tank.The aerator 4 and 5 that is positioned under the granule filter material layer of zone " I ", " II " upper middle is installed in suspension type filtrate lower edge up, about 3/4 place of suspension type filter material layer height; The aerator 4 and 5 that is positioned at zone " I ", " II " bottom can implemented under the mounting condition, bottom, as close as possible filter tank.First kind of operating mode, after blower fan 1 started, switching valve 2 was opened, and switching valve 3 ends, aerator 4 aerations under zone " I " inner bottom part and the granule filter material, because the gas castering action in the aeration zone " I ", formation circulates in the pond.Zone " I " is the up-flow district, and zone " II " is to fall the stream district, and hydraulic load is basic irrelevant with former water flooding quantity, and depends on that gas promotes circular flow, forms good hydraulics.The granule filter material layer 7 on " I " upper strata, zone is in the air-water backwashing operating mode, suspension type filtrate 6 is in air water upward flow oxygen-rich treated operating mode, can improve volumetric loading by encrypting, the granule filter material 7 on " II " upper strata, zone is in down to the filtration operating mode that flows, the suspension type filtrate 6 of bottom is in down handles operating mode to stream, contains the anoxybiotic local environment.Under this operating mode, move 4～5 hours continuously, the operation switching valve, switching valve 2 ends, and switching valve 3 is opened, aerator 4 stops aeration, and aerator 5 starts aeration, and zone " II " is the aeration zone, become the up-flow district, zone " I " forms second kind of operating mode for falling the stream district.Under this operating mode, the pond internal recycle flows just in time reverse with first kind of operating mode, and the operating mode of two regional endoparticle filtrate 7 suspension filtrates 6 is also just in time opposite.Move 4～5 hours continuously under this operating mode, form one-period, first kind of operating mode restarted then, carries out the processing of next loop cycle.
The gas lifting alternative circulation flow composite filter material filter pool of inner circulation structure, except pond, filter tank bodily form formula was distinguished to some extent, other embodiment was identical with the outer circulation structure.
Embodiment 1: a kind of outer circulation structure gas lifting alternative circulation flow composite filter material filter pool, filter tank tower 12 height overall 6.5m, void tower internal diameter 0.75m, hydraulic detention time is 4 hours, and the ability of disposing of sewage is 700L/h, is 0.0m in absolute altitude at the bottom of the tower, water inlet pipe and water outlet pipe is respectively 3.3 and 2.7m at body of the tower opening part absolute altitude, transverse tube 8 diameter 0.5m, upper crosstalk tube medullary ray absolute altitude is 5.80m, lower crosstalk tube medullary ray absolute altitude is 0.42m; The granule filter material diameter is 3～8mm, and the upper edge absolute altitude is 5.2m, floor height 0.5m.Suspension type filtrate 6 is a semi soft packing, floor height 3.5m, every suspension cable length 1.75m, in-plane is extraordinarily close by primary standard 1.5, the short transverse stack has framework to install and fix, and it is 0.67m that the lower edge absolute altitude is installed, aerator is micro-hole aerator, and being positioned at aerator under the granule filter material layer of zone " I ", " II " upper middle, absolute altitude is installed is 3.8m.Municipal wastewater raw water quality COD 410mg/L, BOD5 is 180mg/L, ammonia nitrogen 21mg/L, after the processing, water outlet COD 45mg/L, BOD5 are 18mg/L, ammonia nitrogen 7.2mg/L, (GB18918-2002) primary standard is satisfied in water outlet.

Claims (1)

1. gas lifting alternative circulation flow composite filter material filter pool, it is characterized in that this filter tank has outer circulation and two kinds of structures of internal recycle, there are two symmetric substantially zones " I " and " II " in the filter tank of two kinds of structures, pond, outer circulation structure filter tank body (12) is these symmetric upright void towers of two foundation, form zone " I " and " II ", connect in top and the bottom respectively by two transverse tubes (8); Pond, inner circulation structure filter tank body (12) uses vertical pond internal partition (9) full pond to be divided into two zones " I " and " II " that communicates up and down with general filter tank; In the zone " I " and " II " composite filtering material is installed respectively, what be positioned at the bottom is suspension type filtrate (6), and what be positioned at the upper strata is granule filter material (7), under the granule filter material layer of bottom, zone " I " and upper middle aerator (4) is arranged; Under the granule filter material layer of bottom, zone " II " and upper middle aerator (5) is arranged, outer blower fan (1) and two switching valves (2 of being provided with of pond, filter tank body (12), 3), blower fan (1) respectively with two switching valves (2,3) link to each other, two switching valves (2,3) link to each other with the interior aerator of zone " I " and " II " respectively by pipeline, water-in (10) all is positioned at the top, filter tank with overflow port (11), does not directly connect with body top, pond, and the water-in upper edge is a little more than body top, pond, overflow port (11) top flushes with body top, pond, in establish overflow weir and be lower than overflow port top 15-50cm, the water-in bottom connects water inlet pipe, the overflow port bottom connects rising pipe; Inlet tube and outlet tube is communicated with the pond body at pond body middle part.
CNB2006100386924A 2006-03-08 2006-03-08 Gas lifting alternative circulation flow composite filter material filter pool Expired - Fee Related CN100390078C (en)

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CN101948172A (en) * 2010-08-05 2011-01-19 安徽工业大学 Four-dimensional biological denitrification reactor
CN104512960B (en) * 2013-09-26 2016-03-23 中国石油化工股份有限公司 A kind of integrated apparatus of biological wastewater treatment and method of wastewater treatment
CN104817173A (en) * 2015-03-27 2015-08-05 杭州师范大学 Two-stage double-flow autotrophic denitrification biofilter
CN105060617A (en) * 2015-07-22 2015-11-18 南宁市桂润环境工程有限公司 Double-membrane internal-cycle biological treatment process of low-concentration organic waste water
CN109761355A (en) * 2019-03-20 2019-05-17 中钢集团马鞍山矿山研究院有限公司 A kind of combination biochemical processing method of coking wastewater
CN110697881B (en) * 2019-11-14 2021-04-06 徐书敏 Tower biological filter of quick surface renewal
CN114684913B (en) * 2020-12-31 2023-02-03 中国石油化工股份有限公司 Anaerobic biological filter and sewage treatment method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055161A (en) * 1990-03-29 1991-10-09 化工部北京化工研究院 Composite biological fluidized-bed reactor for treatment of starch wastewater
US5064531A (en) * 1990-07-26 1991-11-12 Int'l Environmental Systems, Inc. Water filtration apparatus
JP2001276874A (en) * 2000-03-31 2001-10-09 Ebara Corp Solid/liquid separation method and device in organic drain treatment
CN2487732Y (en) * 2001-07-11 2002-04-24 南京大学环境学院 Combined biological fluidized bed reactor
JP2004089785A (en) * 2002-08-29 2004-03-25 Sumitomo Heavy Ind Ltd Waste water treatment method and waste water treatment apparatus
CN1689983A (en) * 2004-04-26 2005-11-02 朱加征 Aeration biological filter tank capable of continuous operation
CN1693229A (en) * 2005-04-14 2005-11-09 上海交通大学 Jet-flow aeration biological filtering tank
WO2005118116A1 (en) * 2004-05-28 2005-12-15 Jiang Ji Advanced submerged membrane modules, systems and processes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055161A (en) * 1990-03-29 1991-10-09 化工部北京化工研究院 Composite biological fluidized-bed reactor for treatment of starch wastewater
US5064531A (en) * 1990-07-26 1991-11-12 Int'l Environmental Systems, Inc. Water filtration apparatus
JP2001276874A (en) * 2000-03-31 2001-10-09 Ebara Corp Solid/liquid separation method and device in organic drain treatment
CN2487732Y (en) * 2001-07-11 2002-04-24 南京大学环境学院 Combined biological fluidized bed reactor
JP2004089785A (en) * 2002-08-29 2004-03-25 Sumitomo Heavy Ind Ltd Waste water treatment method and waste water treatment apparatus
CN1689983A (en) * 2004-04-26 2005-11-02 朱加征 Aeration biological filter tank capable of continuous operation
WO2005118116A1 (en) * 2004-05-28 2005-12-15 Jiang Ji Advanced submerged membrane modules, systems and processes
CN1693229A (en) * 2005-04-14 2005-11-09 上海交通大学 Jet-flow aeration biological filtering tank

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Assignee: Ma'anshan Huanghe Water-resource Treatment Engineering Co., Ltd.

Assignor: Anhui University of Technology

Contract record no.: 2010340000096

Denomination of invention: Gas lifting alternative circulation flow composite filter material filter pool

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