CN1693230A - Biological reactor with internal circulating double filtering - Google Patents
Biological reactor with internal circulating double filtering Download PDFInfo
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- CN1693230A CN1693230A CNA200510043436XA CN200510043436A CN1693230A CN 1693230 A CN1693230 A CN 1693230A CN A200510043436X A CNA200510043436X A CN A200510043436XA CN 200510043436 A CN200510043436 A CN 200510043436A CN 1693230 A CN1693230 A CN 1693230A
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- water
- back flushing
- aeration
- biological reactor
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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
A bioreactor with internal with internal circulation and dual filters for treating sewage is composed of water distributing chamber with water distributor, bearing plate, bearing layer, fitlering layer and cyclic aerating cylinder with filter-water outlet unit. The sewage is circulating through said water distributor, cycle aerating cylinder and filter layer, and is filtered by filter layer and the filter-water outlet unit.
Description
Technical field
The present invention relates to sewage disposal device or device, be specifically related to a kind of internal circulating double filtering BAF reactor.
Background technology
General BAF of the prior art at filter tank bottom establishing hydroecium, is established supporting plate in the distributing water room, establish supporting layer on the supporting plate, is filtrate on the supporting layer, and aeration tube is located at part of filter.The oriented upper reaches of BAF water body operation scheme, to dirty and three kinds of modes of lateral flow, it is usual that what adopt is to the upper reaches, the middle resistance water distribution mode of big resistance water distribution mode or filter is generally adopted in back flushing.
In sewage treatment area, compare with the embrane method of activated sludge process or other filler, it is strong that BAF has processing power, good treatment efficiency, flora is rational in infrastructure, be subjected to temperature to influence advantages such as little, but traditional BAF easily exists short stream of generation or channel in the filter material layer, move after for some time because biomembranous aging coming off, make the water outlet water quality not high, anti impulsion load is not fine, can occur when handling high concentrated organic wastewater that filtrate hardens and problem such as backwash effect difference, can occur problems such as effluent quality instability when handling low-concentration organic waste water, and these shortcomings have directly restricted the widespread use of BAF at sewage treatment area.
Summary of the invention
Task of the present invention is to provide a kind of biological reactor with internal circulating double filtering, and this device has increased the inner circulating aerating function when keeping traditional BAF advantage, has realized that the filter tank internal recycle is repeatedly degraded to filter and go out the water filtration double filtration.
Its technical solution is:
A kind of biological reactor with internal circulating double filtering, comprise the pond body, in the body of pond, be provided with distributing water room, supporting plate, supporting layer, filter material layer, in above-mentioned supporting layer and filter material layer, be provided with the cyclic aeration tube of selected quantity, be provided with the aeration filtration water unit in the cyclic aeration tube.
Above-mentioned distributing water room is positioned at body bottom, pond, indoor back flushing water distributing pipe and the divider of being provided with, and water distributing pipe is connected with divider is airtight; Supporting layer adopts cobble or the gradation composition of porcelain ball, is provided with the loosening pipe of air-flow pulse in the supporting layer.
Principle of work of the present invention is substantially: sewage is entered by the water inlet pipe on body top, pond, enter distributing water room from top to down, enter the cyclic aeration tube by the divider in the distributing water room again, the pressurized air that feeds discharges by the aeration filtration water unit of cyclic aeration tube, driving the interior sewage big yield of cyclic aeration tube upwards flows, oxygen in the pressurized air shifts to the sewage mass transfer simultaneously, water body is got back to body top, pond from cyclic aeration tube top, sewage flows through to grow from top to bottom biomembranous biofilter material layer, organism in the sewage is adsorbed by the microbial film of filtrate, obtain degraded and filtration, enter into distributing water room again, enter into the aeration circulating barrel by divider, circulation degraded is so continuously filtered, and makes sewage be purified.Sewage after handling is simultaneously discharged the pond body behind the aeration filtration water unit secondary filtration of aeration circulating barrel.In addition, the present invention also further the air-flow pulse is become flexible and the current backwash combines dexterously, during back flushing by the pulse of the loosening pipe of air loosening after, backwashing water enters from the back flushing water distributing pipe, enter distributing water room through divider, the aging microbial film in the filter material layer is forced rubbing, it is come off, go out with the backwash current, finish biomembranous pressure metabolism.The structural measure that the present invention taked makes sewage be formed centrally internal recycling in each cyclic aeration tube being and flows that the intravital sewage in whole pond is complete mixed solution, therefore can bear higher impact load, and the pollutant holding capability of filtrate is improved; Sewage constantly passes through aerobic, anoxic, anaerobic state in the process of circulating, nitrification and denitrification constantly takes place, and organism such as ammonia nitrogen is removed in the sewage; Sewage is through the double filtration of filtrate and aeration filtration water unit, and effluent quality can be fully guaranteed.Adopt the loosening filtrate of pulse of compressed air, solved the filtrate problem that hardens, water loss is few and back flushing is thorough when making the water recoil, has promoted biomembranous metabolism; In distributing water room divider is installed, two kinds of functions of aeration circulating barrel water inlet were achieved when water distribution was with normal operation when making back flushing.
Above-mentioned aeration filtration water unit is made up of two tubular body arranged insidies that are provided with the filter opening section, and two tubular body arranged insidies insert loading line and outlet pipeline simultaneously by corresponding variable valve.This mode, select to make a tubular body arranged inside be in the aeration state by variable valve, another tubular body arranged inside is in and filters out water state, so behind the operation certain hour, pass through variable valve again, make two tubular body arranged inside aerations and filter water outlet exchange operation, promptly previous aeration body is as filtering out the water pipe body, and previous filters out the water pipe body as the aeration body.Under the situation that keeps operation continuously, the filter opening on the body is formed backwash automatically, improve its work-ing life.
The overhead height of above-mentioned cyclic aeration tube is concordant with the normal operating water level of setting, and the back flush discharge water table ratio is set the low 30～50cm of normal operating water level.
The corresponding pond of above-mentioned back flush discharge water level height degree is higher than the filter material layer height, and zone between the two is the back flushing breathing space.
The loosening pipe of said flow pulse, adopting the pressurized air of compressor is source of the gas, with pulse mode filtrate is become flexible.This technical approach is realized washing by rubbing with the hands mutually between the filtrate, and the aging microbial film on the filtrate is come off, and reduces the intensity of back flushing, and prevents that filtrate runs off.
Above-mentioned aeration filtration water unit and aeration circulating barrel flexibly connect.This technical approach can take out the aeration filtration water unit not exclusively discharging under the situation of Chi Tishui, and it is overhauled.
Above-mentioned back flushing water distributing pipe is fastenedly connected with each divider in distributing water room, and each aeration circulating barrel connects a divider; When normal operation, from following water bodys that is advanced into distributing water room such as filter material layers, enter the corresponding aeration circulating barrel from divider, body interior water body in pond is circulated; During back flushing, backwashing water enters from the back flushing water distributing pipe, enters in the distributing water room through divider, through supporting plate, supporting layer water distribution, filter material layer is carried out back flushing; Before the above-mentioned back flushing, open the back flushing rising pipe, the back flushing water level is remained on set below the normal operating water level.
Description of drawings
Fig. 1 is one embodiment of the present invention structural principle synoptic diagram.
Fig. 2 is a kind of plane figure synoptic diagram that shows cyclic aeration tube among the present invention.
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Embodiment
As shown in Figure 1 and Figure 2, a kind of biological reactor with internal circulating double filtering is made up of pond body 1, distributing water room 2, supporting plate 3, supporting layer 4, filter material layer 5 and cyclic aeration tube 6 etc.Pond body 1 can generally adopt square for square or circular.Cyclic aeration tube 6 can be selected 2,3,4,5,6 or 8 etc. for use, and the manner is taked 4.Back flushing water distributing pipe 7 is fastenedly connected with each divider 8 in distributing water room 2, and each cyclic aeration tube 6 connects a divider 8, and supporting plate 3 has grizzly bar hole or circular hole on being fixed at the bottom of pool wall or the pond on it.Supporting layer 4 adopts cobble or the gradation composition of porcelain ball being positioned on the supporting plate 3, is provided with the loosening pipe 9 of air-flow pulse in the supporting layer 4, is filter material layer 5 on the supporting layer 4, and filter material layer 5 can be chosen the lightweight strong filming filter material, and filter material layer 5 tops are backwash expansion district 10.Be provided with the aeration filtration unit in the cyclic aeration tube 6, this aeration filtration unit is made up of tubular body arranged inside 11 that is provided with the filter opening section and tubular body arranged inside 12, tubular body arranged inside 11 and tubular body arranged inside 12 and aeration circulating barrel 6 are fixed with movable connection method, be connected with gas ducting 14 with outlet pipeline 13 respectively, it is selected to carry out opening and closing by variable valve, realizes that the interactive mode of tubular body arranged inside 11 and tubular body arranged inside 12 realization aerations and filtration water outlet is carried out.
During normal the operation, sewage enters Chi Tizhong by water inlet pipe 15, pressurized air enters the sewage that 11 pairs of tubular body arranged insidies in each cyclic aeration tube enter in the tube through loading line 14 and carries out aeration aerating, lifting power is provided for simultaneously the sewage in the cyclic aeration tube 6, and its big yield is upwards flowed.Flow out the sewage behind the aeration cylinder 6 from the top, at the Chi Tizhong long biomembranous biofilter material layer 5 that has of flowing through from top to bottom, organism in the sewage is attracted on the microbial film of filtrate and obtains degraded and filter, enter into distributing water room 2 through supporting layer 4 and supporting plate 3, enter into the aeration circulating barrel once more by divider 8, so sewage circulates continuously in the filter tank.Sewage after the processing enters this tubular body arranged inside via the filter opening district of tubular body arranged inside 12, and the back is discharged to outside the pond by siphon technology or negative pressure-pumping by outlet pipeline 13.Tubular body arranged inside 11 and tubular body arranged inside 12 are opened or are closed by the variable valve on outlet pipeline 13 and the loading line 14 is regularly selected, finish aeration and filter the interactive operation of water outlet.When running to a certain degree, the microbial film on the filtrate constantly thickens, and the effluent cycle resistance is continued to increase, at this moment close the water inlet pipe valve, open the valve of the loosening pipe 9 of air-flow recoil, it is loosening that filter material layer is carried out the several pulse, the valve ingoing stream backwash of opening back flushing rising pipe 16 again.Also can be as required, it is loosening to carry out pulse when normally going out water running.During the water backwash, at first start backwash pump, open back flush valves then, backwashing water enters from back flushing water distributing pipe 7, advance distributing water room 2, supporting layer 4 through divider 8, filter material layer 5 is carried out back flushing, realize the foreign material in biomembranous renewal and the removal filter material layer.Also current back flushing and and the air-flow pulse is loosening carries out simultaneously as required.This operational process can be realized control automatically by sequencing.
Difference according to influent quality, this biological reactor with internal circulating double filtering can move in groups in several series connection, with different functional separations such as nitrated, denitrification, decarburizations, also can grouping in parallel move, according to the difference of the water yield, can realize equipmentization, complete set simultaneously.
Also a tubular body arranged inside that is provided with the filter opening section can only be set in the cyclic aeration tube of above-mentioned embodiment, this tubular body arranged inside inserts loading line and outlet pipeline simultaneously by variable valve.Realize this tubular body arranged inside aeration and filter water outlet hocketing by variable valve control.
Under above-mentioned instructions direct, the present invention also can have other multiple conspicuous variation patterns.
Claims (8)
1, a kind of biological reactor with internal circulating double filtering, comprise the pond body, in the body of pond, be provided with distributing water room, supporting plate, supporting layer, filter material layer, it is characterized in that: in described supporting layer and filter material layer, be provided with the cyclic aeration tube of selected quantity, be provided with the aeration filtration water unit in the cyclic aeration tube.
2, biological reactor with internal circulating double filtering according to claim 1 is characterized in that: described distributing water room is positioned at body bottom, pond, indoor back flushing water distributing pipe and the divider of being provided with, and water distributing pipe is connected with divider is airtight; Supporting layer adopts cobble or the gradation composition of porcelain ball; Be provided with the loosening pipe of air-flow pulse in the supporting layer.
3, biological reactor with internal circulating double filtering according to claim 1 and 2, it is characterized in that: described aeration filtration water unit is made up of two tubular body arranged insidies that are provided with the filter opening section, and two tubular body arranged insidies insert loading line and outlet pipeline simultaneously by corresponding variable valve.
4, biological reactor with internal circulating double filtering according to claim 2 is characterized in that: the overhead height of described cyclic aeration tube is concordant with the normal operating water level of setting, and the back flush discharge water table ratio is set the low 30～50cm of normal operating water level.
5, biological reactor with internal circulating double filtering according to claim 4 is characterized in that: the corresponding pond of described back flush discharge water level height degree is higher than the filter material layer height, and zone between the two is the back flushing breathing space.
6, biological reactor with internal circulating double filtering according to claim 2 is characterized in that: the loosening pipe of described air-flow pulse, adopting the pressurized air of compressor is source of the gas, with pulse mode filtrate is become flexible.
7, biological reactor with internal circulating double filtering according to claim 1 is characterized in that: described aeration filtration water unit and aeration circulating barrel flexibly connect.
8, biological reactor with internal circulating double filtering according to claim 2 is characterized in that: described back flushing water distributing pipe is fastenedly connected with each divider in distributing water room, and each aeration circulating barrel connects a divider; When normal operation, from following water bodys that is advanced into distributing water room such as filter material layers, enter the corresponding aeration circulating barrel from divider, body interior water body in pond is circulated; During back flushing, backwashing water enters from the back flushing water distributing pipe, enters in the distributing water room through divider, through supporting plate, supporting layer water distribution, filter material layer is carried out back flushing; Before the above-mentioned back flushing, open the back flushing rising pipe, the back flushing water level is remained on set below the normal operating water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510043436XA CN100494088C (en) | 2005-04-28 | 2005-04-28 | Biological reactor of internal circulating and double filtering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510043436XA CN100494088C (en) | 2005-04-28 | 2005-04-28 | Biological reactor of internal circulating and double filtering |
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| CN1693230A true CN1693230A (en) | 2005-11-09 |
| CN100494088C CN100494088C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200510043436XA Expired - Fee Related CN100494088C (en) | 2005-04-28 | 2005-04-28 | Biological reactor of internal circulating and double filtering |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357194C (en) * | 2005-11-17 | 2007-12-26 | 上海交通大学 | Single-stage inner circulating aerating biological filtering tank |
| CN101985375A (en) * | 2010-08-02 | 2011-03-16 | 朱向宏 | High-efficiency washing method and device for filter adopting expansive filler |
| CN101643269B (en) * | 2008-08-07 | 2012-07-25 | 中冶赛迪工程技术股份有限公司 | Biological aerated filter and process |
| CN102976556A (en) * | 2012-11-29 | 2013-03-20 | 浙江海洋学院 | Heavy oil cracking wastewater deodorization treatment system and method for refinery plant |
| CN104973687A (en) * | 2015-06-24 | 2015-10-14 | 安徽显闰环境工程有限公司 | Novel biological filter tank used for treating rural domestic wastewater |
| CN105776545A (en) * | 2016-05-10 | 2016-07-20 | 张振家 | Biological sewage treatment aeration tank with fixed filler layer |
| CN106517505A (en) * | 2016-12-12 | 2017-03-22 | 江苏中宜金大环保技术发展有限公司 | Denitrification filter tank and operation method thereof |
| CN107215952A (en) * | 2017-07-25 | 2017-09-29 | 山东智博格瑞环保科技有限公司 | A kind of interior circulation pressure-fired fixed-bed bioreactor |
| CN109019840A (en) * | 2018-09-28 | 2018-12-18 | 苏州清然环保科技有限公司 | Nitrify water treatment facilities |
-
2005
- 2005-04-28 CN CNB200510043436XA patent/CN100494088C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357194C (en) * | 2005-11-17 | 2007-12-26 | 上海交通大学 | Single-stage inner circulating aerating biological filtering tank |
| CN101643269B (en) * | 2008-08-07 | 2012-07-25 | 中冶赛迪工程技术股份有限公司 | Biological aerated filter and process |
| CN101985375A (en) * | 2010-08-02 | 2011-03-16 | 朱向宏 | High-efficiency washing method and device for filter adopting expansive filler |
| CN101985375B (en) * | 2010-08-02 | 2012-02-15 | 朱向宏 | High-efficiency washing method and device for filter adopting expansive filler |
| CN102976556A (en) * | 2012-11-29 | 2013-03-20 | 浙江海洋学院 | Heavy oil cracking wastewater deodorization treatment system and method for refinery plant |
| CN104973687A (en) * | 2015-06-24 | 2015-10-14 | 安徽显闰环境工程有限公司 | Novel biological filter tank used for treating rural domestic wastewater |
| CN105776545A (en) * | 2016-05-10 | 2016-07-20 | 张振家 | Biological sewage treatment aeration tank with fixed filler layer |
| CN106517505A (en) * | 2016-12-12 | 2017-03-22 | 江苏中宜金大环保技术发展有限公司 | Denitrification filter tank and operation method thereof |
| CN107215952A (en) * | 2017-07-25 | 2017-09-29 | 山东智博格瑞环保科技有限公司 | A kind of interior circulation pressure-fired fixed-bed bioreactor |
| CN107215952B (en) * | 2017-07-25 | 2023-04-07 | 山东智博格瑞环保科技有限公司 | Internal circulation micro-positive pressure fixed bed bioreactor |
| CN109019840A (en) * | 2018-09-28 | 2018-12-18 | 苏州清然环保科技有限公司 | Nitrify water treatment facilities |
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| Publication number | Publication date |
|---|---|
| CN100494088C (en) | 2009-06-03 |
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Granted publication date: 20090603 Termination date: 20140428 |