CN103011390A - Novel diving jet-type biological aerated filter - Google Patents
Novel diving jet-type biological aerated filter Download PDFInfo
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- CN103011390A CN103011390A CN2012105903706A CN201210590370A CN103011390A CN 103011390 A CN103011390 A CN 103011390A CN 2012105903706 A CN2012105903706 A CN 2012105903706A CN 201210590370 A CN201210590370 A CN 201210590370A CN 103011390 A CN103011390 A CN 103011390A
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- filter
- aerator
- biological filter
- submersible jet
- submersible
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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
Abstract
The invention discloses a novel diving jet-type biological aerated filter, comprising a biological filter, wherein a filter filler part and a filter material layer are arranged in the biological filter; a water inlet tube is arranged at the upper end of the biological filter, and a water outlet tube is arranged at the lower end of the biological filter; a bridge is installed at the top end of the biological filter; a diving jet-type aerator which is fixed via a hoisting chain is installed on the bridge; and the main machine of the diving jet-type aerator is installed below the filter filler part. Via the mode aforementioned, the novel diving jet-type biological aerated filter disclosed by the invention is capable of effectively improving gas-liquid mixing effect, realizing uniform gas distribution, increasing oxygen utilization rate, creating an environment suitable for growth of microbes which are used for oxygenolysis of organic matters, improving effluent treatment effect, and saving space and construction cost.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to a kind of novel submersible jet formula BAF that sanitary sewage and organic industrial sewage are processed usefulness.
Background technology
BAF (BAF) is the sewage treatment process that rises beginning of the nineties late 1980s.It is the sewage disposal device of collection biological degradation, solid-liquid separation and one.BAF is widely used in sanitary sewage and organic industrial sewage is processed, and sewage enters the pond body from top, filter tank, and by the filtering layer by media assemblage, is formed with the microbial film that microorganism perches formation at filling surface.When sewage filters filtering layer, by the bottom, pond by blast main to the filtering layer aeration, air rises on the gap by filler, contacts in opposite directions with dirty sewage, airborne oxygen is transferred in the sewage, and the microorganism on microbial film provides sufficient dissolved oxygen and abundant organism.Under the metabolism of microorganism, organic pollutant is degraded, and sewage is processed.Existing BAF need to provide source of the gas to carry out aeration with gas blower, its weak point is that the source of the gas that provides of gas blower is even not through the gas that aeration head discharges, some filtrates are washed and lose the filter material surface microbial film, some filter cloggings, the filter material layer microorganism can't obtain effective oxygen supply, is unfavorable for the metabolism of microorganism growth and pollutent, enter sewage after the airborne oxygen residence time short, gas-liquid mixed is inhomogeneous, also will affect wastewater treatment efficiency.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of novel submersible jet formula BAF, can Effective Raise gas-liquid mixed effect, realize even gas distribution, create the environment of suitable microorganism growth for the microbiological oxidation decomposing organic matter, improve water outlet treatment effect, conserve space and construction cost.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of novel submersible jet formula BAF is provided, comprise the biological filter, be provided with filter tank filler part and filter material layer in the biological filter, the upper end, biological filter is provided with water inlet pipe, the lower end, biological filter is provided with rising pipe, it is characterized in that: top, described biological filter is equipped with crane span structure, be equipped with on the crane span structure by hanging and rise the fixing submersible jet aerator of chain, the main frame of submersible jet aerator is installed in the below of filter tank filler part.
The submersible jet aerator carries out oxygen supply by the mode that submersible machine rotates driven rotary blade rotary formation negative inspiratory pressure, the negative pressure that air forms by the rotation of driven by motor rotating paddle through air delivery pipe sucks in the aerator mixing zone and sewage mixes, the high efficient mixed that forms micro-bubble and realization and sewage is broken up air in the simultaneously turning motion of blade.At last, gas-liquid mixture stream in ejector nozzle is ejected into the biological filter, is embodied as the biological filter oxygen supply with the high-speed rotational form.
Preferably, the below of the corresponding filter material layer in described biological filter is provided with back flushing water pipe and back flushing tracheae.
Preferably, the vertical 90 ° of installations of described submersible jet formula aerator, and rise chain and carry out elevating control by hanging, aerator center ventilation mixing section is surrounded by the Corrosion Protection of Fiber Reinforced Plastics guard shield.
Preferably, described submersible jet formula aerator adopts the mode oxygen supply of submersible machine band rotor blade high speed rotating formation negative inspiratory pressure, the gas blower that need not to add and aeration head and pipeline.
Preferably, described submersible jet formula aerator is comprised of air delivery pipe, steam-water mixing chamber, the submersible machine, rotating paddle and the ejector nozzle that are positioned at water level below.
The invention has the beneficial effects as follows: a kind of novel submersible jet formula BAF of the present invention has the following advantages:
1, by utilizing the submersible jet aerator to replace original blast aeration equipment, but Effective Raise gas-liquid mixed effect realizes even gas distribution, improves oxygen transfer efficiency, and solved the problem that aeration head stops up, created the environment of suitable microorganism growth for the microbiological oxidation decomposing organic matter.Further improve the water outlet treatment effect.
2, reduce the setting of blast apparatus and gas transmission, aerated conduit, saved space and construction cost.
3, the installation, maintenance of submersible jet aerator is convenient, has simplified to a great extent the technological design construction, and the operation management is also more simple, and the Equipment Foundations investment of required usefulness also still less greatly reduces the Construction and operation cost.
Description of drawings
Fig. 1 is the structural representation of a kind of novel submersible jet formula BAF of the present invention.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
See also Fig. 1, the embodiment of the invention comprises:
A kind of novel submersible jet formula BAF mainly is comprised of biological filter (1), submersible jet formula aerator (2), back flushing water pipe (3), back flushing tracheae (4).Sewage enters the biological filter by water inlet pipe (5), submersible jet aerator (2) is installed above BAF, wherein aerator is fixing by erection bridge (7), and rise chain (8) and carry out elevating control by hanging, by filter tank filler part (6), the aerator main body is installed in filler below, filter tank.Air is through air delivery pipe (11), forming negative pressure by submersible machine (9) driven rotary blade rotary in the aerator main body sucks in the aerator mixing zone and the sewage mixing, the high efficient mixed that forms micro-bubble and realization and sewage is broken up air in the simultaneously turning motion of blade.At last, gas-liquid mixture stream is ejected in the biological filter through ejector nozzle (10) with the high-speed rotational form, is embodied as the biological filter oxygen supply.Sewage is discharged by water outlet (12) after treatment.After operation for some time, by back flushing water pipe (3) and back flushing tracheae (4) filter material layer is carried out air-water backwashing, be trapped in dirt in the filtering layer with removal, guarantee follow-up normal operation.
The vertical 90 ° of installations of submersible jet formula aerator (2), and rise chain (8) and carry out elevating control by hanging, cable inlet has the flooding safety structure, and center ventilation mixing section is surrounded by the Corrosion Protection of Fiber Reinforced Plastics guard shield.
Embodiment one:
Process certain sanitary sewage, the raw water quality condition is: chemical oxygen demand (COD) (COD
Cr) content 250-300mg/L, biological oxygen demand (BOD
5) content 120-150mg/L, ammonia nitrogen is 8-10mg/L, total nitrogen (TN) is 20-25mg/L.Process by the Self-priming jet aeration biological filter, the water conservancy residence time is 4 hours, until system after stable after a while, sewage after treatment, final outflow water COD
CrBelow 20mg/L, BOD
5Below 5mg/L, ammonia nitrogen is 2-5mg/L, and total nitrogen is less than 10mg/L, and " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard is satisfied in water outlet.
Embodiment two:
Process certain trade effluent, this sewage is certain Food Industry Wastewater, and the raw water quality condition is: COD
CrContent 500-700mg/L, BOD
5Content 300-400mg/L, ammonia nitrogen are 10-20mg/L, and total nitrogen is 30-40mg/L.Therefore this kind wastewater biodegradability is better, and directly by the processing of Self-priming jet aeration biological filter, the water conservancy residence time is 6 hours, until system after stable after a while, sewage after treatment, final outflow water COD
CrBelow 30mg/L, BOD
5Below 5mg/L, ammonia nitrogen is 2-5mg/L, and total nitrogen is less than 10mg/L, and water outlet reaches industry discharging one-level A standard.
The present invention utilizes the submersible jet aerator to replace original blast aeration equipment, is filled with air and is forced in casing and liquid mixing, therefore can obtain excellent gas-liquid mixed effect.Owing to the micro bubble of the multidirectional injection of jet aerator, can produce the convection agitation effect simultaneously, on one side and gas-to-liquid contact, therefore floating can obtain higher oxygen dissolution efficient and realize even gas distribution on one side.And the submersible jet aerator is the mode oxygen supply that forms the negative pressure self-priming by the diving generator rotor rotation, has also reduced the setting of blast apparatus and gas transmission, aerated conduit.
The beneficial effect that the present invention brings is:
1, by utilizing the submersible jet aerator to replace original blast aeration equipment, but Effective Raise gas-liquid mixed effect realizes even gas distribution, improves oxygen transfer efficiency, and solved the problem that aeration head stops up, created the environment of suitable microorganism growth for the microbiological oxidation decomposing organic matter.Further improve the water outlet treatment effect.
2, reduce the setting of blast apparatus and gas transmission, aerated conduit, saved space and construction cost.
3, the installation, maintenance of submersible jet aerator is convenient, has simplified to a great extent the technological design construction, and the operation management is also more simple, and the Equipment Foundations investment of required usefulness also still less greatly reduces the Construction and operation cost.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. novel submersible jet formula BAF, comprise the biological filter, be provided with filter tank filler part and filter material layer in the biological filter, the upper end, biological filter is provided with water inlet pipe, the lower end, biological filter is provided with rising pipe, it is characterized in that: top, described biological filter is equipped with crane span structure, is equipped with on the crane span structure by hanging and rises the fixing submersible jet aerator of chain, and the main frame of submersible jet aerator is installed in the below of filter tank filler part.
2. a kind of novel submersible jet formula BAF according to claim 1 is characterized in that: the below of the corresponding filter material layer in described biological filter is provided with back flushing water pipe and back flushing tracheae.
3. a kind of novel submersible jet formula BAF according to claim 1, it is characterized in that: the vertical 90 ° of installations of described submersible jet formula aerator, and rise chain and carry out elevating control by hanging, aerator center ventilation mixing section is surrounded by the Corrosion Protection of Fiber Reinforced Plastics guard shield.
4. a kind of novel submersible jet formula BAF according to claim 1, it is characterized in that: described submersible jet formula aerator adopts the mode oxygen supply of submersible machine band rotor blade high speed rotating formation negative inspiratory pressure, the gas blower that need not to add and aeration head and pipeline.
5. a kind of novel submersible jet formula BAF according to claim 1 is characterized in that: described submersible jet formula aerator is comprised of air delivery pipe, steam-water mixing chamber, the submersible machine, rotating paddle and the ejector nozzle that are positioned at the water level below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105903706A CN103011390A (en) | 2012-12-29 | 2012-12-29 | Novel diving jet-type biological aerated filter |
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| CN2012105903706A CN103011390A (en) | 2012-12-29 | 2012-12-29 | Novel diving jet-type biological aerated filter |
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| CN103011390A true CN103011390A (en) | 2013-04-03 |
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| CN2012105903706A Pending CN103011390A (en) | 2012-12-29 | 2012-12-29 | Novel diving jet-type biological aerated filter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163668A (en) * | 2014-07-15 | 2014-11-26 | 新疆凯金新安生物有限公司 | Organic waste treatment system and treatment process |
| CN104829057A (en) * | 2015-05-05 | 2015-08-12 | 南京大学 | Vertical biofilter system for decentralized sewage treatment in rural areas |
| CN105884041A (en) * | 2016-05-30 | 2016-08-24 | 陈雷 | Surface water treatment equipment |
| CN105967325A (en) * | 2016-05-25 | 2016-09-28 | 安徽普氏生态环境工程有限公司 | Bioaeration tank |
| CN107213678A (en) * | 2017-07-20 | 2017-09-29 | 北京市自来水集团有限责任公司技术研究院 | A kind of auxiliary gas flushing system in waterworks filter tank |
| CN108585233A (en) * | 2018-05-22 | 2018-09-28 | 北京三合普惠国际文化科技服务有限公司 | A kind of nanometer aeration activation system for sewage disposal |
| CN108911370A (en) * | 2018-06-26 | 2018-11-30 | 宜兴市荣盛达环保有限公司 | A kind of efficient Sewage advanced treatment jetting stream gas-liquid mixed biological aerated filter |
| CN111704240A (en) * | 2020-06-24 | 2020-09-25 | 安徽环境科技集团股份有限公司 | Negative pressure backwashing biological filter and cleaning method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201245496Y (en) * | 2008-05-07 | 2009-05-27 | 辽宁省水利水电科学研究院 | Ejector type aerating biological filter |
-
2012
- 2012-12-29 CN CN2012105903706A patent/CN103011390A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201245496Y (en) * | 2008-05-07 | 2009-05-27 | 辽宁省水利水电科学研究院 | Ejector type aerating biological filter |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163668A (en) * | 2014-07-15 | 2014-11-26 | 新疆凯金新安生物有限公司 | Organic waste treatment system and treatment process |
| CN104829057A (en) * | 2015-05-05 | 2015-08-12 | 南京大学 | Vertical biofilter system for decentralized sewage treatment in rural areas |
| CN105967325A (en) * | 2016-05-25 | 2016-09-28 | 安徽普氏生态环境工程有限公司 | Bioaeration tank |
| CN105884041A (en) * | 2016-05-30 | 2016-08-24 | 陈雷 | Surface water treatment equipment |
| CN107213678A (en) * | 2017-07-20 | 2017-09-29 | 北京市自来水集团有限责任公司技术研究院 | A kind of auxiliary gas flushing system in waterworks filter tank |
| CN107213678B (en) * | 2017-07-20 | 2023-09-01 | 北京市自来水集团有限责任公司技术研究院 | Auxiliary gas flushing system of filter tank of water works |
| CN108585233A (en) * | 2018-05-22 | 2018-09-28 | 北京三合普惠国际文化科技服务有限公司 | A kind of nanometer aeration activation system for sewage disposal |
| CN108585233B (en) * | 2018-05-22 | 2019-10-01 | 北京三合普惠国际文化科技服务有限公司 | A kind of nanometer aeration activation system for sewage treatment |
| CN108911370A (en) * | 2018-06-26 | 2018-11-30 | 宜兴市荣盛达环保有限公司 | A kind of efficient Sewage advanced treatment jetting stream gas-liquid mixed biological aerated filter |
| CN111704240A (en) * | 2020-06-24 | 2020-09-25 | 安徽环境科技集团股份有限公司 | Negative pressure backwashing biological filter and cleaning method |
| CN111704240B (en) * | 2020-06-24 | 2021-11-02 | 安徽环境科技集团股份有限公司 | Negative-pressure backwashing denitrification biological filter and cleaning method |
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Application publication date: 20130403 |