CN101323493A - Waste water treatment apparatus based on ozone oxidation and aerating biological filter - Google Patents
Waste water treatment apparatus based on ozone oxidation and aerating biological filter Download PDFInfo
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- CN101323493A CN101323493A CNA2008100297239A CN200810029723A CN101323493A CN 101323493 A CN101323493 A CN 101323493A CN A2008100297239 A CNA2008100297239 A CN A2008100297239A CN 200810029723 A CN200810029723 A CN 200810029723A CN 101323493 A CN101323493 A CN 101323493A
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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 invention discloses a wastewater disposal apparatus based on an ozone oxidization and biological aerated filter (BAF). The apparatus comprises an ozone generation system, a steam-water mixing system, a down-flow BAF and a heterogeneous ozone catalytic oxidation system which from bottom to top comprises a steam-water mixing layer, a water bearing distributing plate, a heterogeneous catalytic oxidation filling layer, a wire mesh and an effluent weir. A wastewater injecting nozzle is positioned in the steam-water mixing layer, and the effluent weir is communicated with a steam-water mixing zone at the upper end of the down-flow BAF; the heterogeneous catalytic oxidation filling layer is formed by accumulating ceramic grains loaded with manganese series of metal with the height of 3 to 8 meters. The invention realizes two functions, namely, the ozone catalytic oxidation and the BAF biochemistry, in one combined reactor so as to reduce pumps and pipelines, and then the occupied area is small; the heterogeneous ozone catalytic oxidation system thoroughly makes use of the ozone to oxidize organisms in water to reduce the residual concentration of organisms in water and to protect the microorganisms of the BAF.
Description
Technical field
The present invention relates to water treatment field, specifically is to utilize catalytic ozonation one downflow system BAF integrated water treatment equipment to handle contaminated former water, waste water, particularly contains the advanced treatment field of refractory organic waste water.
Background technology
Ozone has extremely strong oxidation susceptibility, and its oxidation capacity is only second to fluorine, is higher than chlorine and potassium permanganate.Based on the strong oxidizing property of ozone, but and in water, decompose voluntarily in the short period of time, there is not secondary pollution, be ideal green oxidation medicament.At present, ozone technology is widely used in water treatment field.Ozone not only has very strong sterilization, is difficult to biodegradable pollution substance in can also oxidation removal water.If directly remove as carbonic acid gas and water but use ozone will be difficult to biodegradable pollutent mineralising separately, often the ozone dosage is big, and required expense is too high, and is less economical, can't be in actual engineering large-scale application.Simultaneously, traditional ozonation technology can not improve the ozone oxidation ability effectively, and is also lower to the hardly degraded organic substance clearance.Therefore, ozone is carried out catalyzed oxidation, improving its oxidation capacity also is the focus of studying at present.
BAF (BAF) technology is mainly used in the advanced treatment of wastewater of lower concentration and the pre-treatment of the little pollution of former water, handles low-concentration industrial sewage disposal, the former water pretreatment of feedwater etc. as city domestic sewage.It is an a kind of microorganism contact growing system, by attached to the absorption of the microorganism on the filler, degraded, oxidation, effect such as synthetic, removes dissolved matter biodegradable and utilization.The characteristics of this method Ji Wushuichulibaoqichi and feedwater rapid filter are in one, the use of the particulate filler of high-specific surface area has not only increased microbial biomass, and microbic activity height, make waste water to contact fully effectively simultaneously, thereby make the general traditional biologic treating technique of BAF that higher processing efficiency be arranged with the microorganism of filling surface.The maximum characteristics of BAF are to integrate bio-oxidation and hold back suspended substance, have saved follow-up secondary sedimentation basins, and treatment process is simplified.In addition, biological aerated filter process also has organism volumetric loading height, hydraulic load is big, ask during hydraulic retention short, required initial cost is few, energy consumption and running cost are low and guarantee characteristics such as higher effluent quality.But the BAF technology only can remove biodegradable organism, and is often not good to the treatment effect that contains refractory organic waste water.To containing solvability, and the removal that is difficult to the biological degradation pollutent again is advanced treatment of wastewater, a difficult problem of middle water reuse.
Summary of the invention
The purpose of apparatus of the present invention is to overcome prior art and handles the deficiency that contains refractory organic waste water, develop a kind of ozone oxidation ability strong and BAF bio-oxidation and the characteristics of holding back suspended solids of both having kept, avoid ozone the BAF bio-oxidation to be disturbed and improved a kind of wastewater treatment equipment of the biodegradability of its organic pollutant again based on ozone oxidation and BAF.
The principle of the invention: adopt the ozone heterogeneous catalytic oxidation, in device, fill ozone oxidation catalysis haydite, improve the oxidation efficiency of ozone greatly, reduce the processing cost of waste water; Through catalytic ozonation, not only oxygenolysis partial organic substances, main is the biodegradability that has improved organic pollutant, waste water outflow enters downflow type aerating biological filter then, utilizes the BAF treatment process to be removed by the refractory organic after the ozone Oxidation Treatment the most at last.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of wastewater treatment equipment based on ozone oxidation and BAF, comprise ozone generation system, air water mixing system and downflow type aerating biological filter, described air water mixing system comprises conveying water pump, Venturi tube and the waste water jet orifice that connects successively, and ozone generation system links to each other with Venturi tube; Described waste water advanced treatment unit also comprises heterogeneous catalytic ozonation system, and this system comprises air water mixolimnion, support water distribution board, heterogeneous catalytic oxidation packing layer, woven wire and effluent weir from down to up; The waste water jet orifice is arranged in the air water mixolimnion, and effluent weir is communicated with the air water mixing zone of downflow type aerating biological filter upper end; Described heterogeneous catalytic oxidation packing layer by load the haydite of manganese metal series pile up and to form, the haydite particle diameter is 2～8mm, highly is 3～8m.
For further realizing purpose of the present invention, described woven wire is the stainless steel woven wire, and specification is 10～20 orders.
Described downflow type aerating biological filter comprises air water mixing zone, biologic packing material layer, pressure bearing layer and back flushing gas distribution water distribution layer from top to bottom successively in the body of pond, also be provided with water outlet in back flushing gas distribution water distribution layer.
Described downflow type aerating biological filter also comprises back-purge system, back-purge system comprises back flushing air pump, backwash pump and back flushing effluent weir, back flushing air pump, backwash pump are communicated with back flushing gas distribution water distribution layer respectively, and the back flushing effluent weir is arranged on the top of air water mixing zone.
Described pressure bearing layer is steel plate or cement plate, and ABS or stainless steel filter head are installed onboard.
Described biologic packing material layer is that the haydite, gac, ceramic honey comb, zeolite of 1～10mm or volcanics granular filler are piled up and formed by particle diameter.
Described influent waste water is carried on water pump and the pipeline that Venturi tube is communicated with and is provided with first valve and under meter successively.
Described support water distribution board is steel plate or cement plate, and ABS or stainless steel filter head are installed onboard.
The cross-sectional area of described downflow type aerating biological filter is 1.5-2.5 a times of heterogeneous ozone catalytic reactive system cross-sectional area.
The present invention has following advantage and positively effect:
(1) the present invention has realized two effects of catalytic ozonation and BAF biochemistry in the reactor of a combination, the suction that utilizes water inlet water pump and Venturi tube to produce, ozone is sucked device for catalyzing and oxidating ozone, react later water reuse difference of altitude, directly overflow enters downflow type aerating biological filter, has realized the combination treatment of catalytic ozonation and BAF in a reactor.Reduced the trouble that ozonize later water pumps into BAF again; Reduced pump and pipeline, and the unbalanced problem of flow between each unit, the treatment system compactness, floor space is little.
(2) after the ozonize ozone layer destroying system needn't be installed again, be full of the packing layer of catalytic carrier because ozone will pass through, so do not have ozone residual in the tail gas substantially.And the ozone that is dissolved in the waste water is 1～3 hour in the residence time of whole ozone catalytic reactor; with respect to 15～20 minutes transformation period of ozone; the time that stops is enough long; simultaneously; downflow type aerating biological filter is by adjusting the height of water pipe; the air water mixolimnion that guarantees biologic packing material top has the above protection height of 1m, further decompose reduce may be residual in the waste water drop ozone, the microorganism of BAF is shielded.
Description of drawings:
Fig. 1 is based on the wastewater treatment equipment one-piece construction synoptic diagram of ozone oxidation and BAF.
Fig. 2 is heterogeneous catalytic ozonation system and a downflow type aerating biological filter structural representation among Fig. 1.
Fig. 3 is a kind of wastewater treatment equipment vertical view based on ozone oxidation and BAF.
Embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing and example, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, 2: a kind of wastewater treatment equipment based on ozone oxidation and BAF comprises heterogeneous catalytic ozonation system 8, ozone generation system 7, air water mixing system and downflow type aerating biological filter 9.The air water mixing system comprises conveying water pump 1, first valve 2, under meter 3, Venturi tube 4, second valve 5 and the waste water jet orifice 6 that connects successively; Ozone generation system 7 links to each other with Venturi tube 4; Heterogeneous catalytic ozonation system 8 comprises air water mixolimnion 11, support water distribution board 12, heterogeneous catalytic oxidation packing layer 13, woven wire 1 and effluent weir 15 from down to up; Waste water jet orifice 6 is arranged in air water mixolimnion 11, and effluent weir 15 is communicated with the air water mixing zone 16 of downflow type aerating biological filter upper end.Ozone generation system 7 links to each other with Venturi tube 4 and communicates, and ozone enters heterogeneous catalytic ozonation system 8 by Venturi tube.Woven wire is the stainless steel woven wire.Ozone generation system generally includes air compressor, instrument air dryer, pure oxygen maker and ozonizer four parts, at present in, large-scale ozone generation system (ozone amount that 500g/h is above) all adopts this prepared ozone, suite of equipment is arranged, therefore no longer describe in detail.
Downflow type aerating biological filter comprises air water mixing zone 16, biologic packing material layer 17, pressure bearing layer 18 and back flushing gas distribution water distribution layer 19 from top to bottom successively in the body of pond, also be provided with water outlet 10 in back flushing gas distribution water distribution layer 19.The biologic packing material layer is that the haydite, gac, ceramic honey comb, zeolite of 1～10mm or volcanics granular filler are piled up and formed by particle diameter.Downflow type aerating biological filter 9 also comprises back-purge system, back-purge system comprises back flushing blower fan water pump system 21 and back flushing effluent weir 20, be used for the back flushing in filter tank, back flushing blower fan water pump system 21 and back flushing gas distribution water distribution layer 19 are communicated with by pipeline, and back flushing effluent weir 20 is arranged on the air water mixing zone 16.Waste water after the back flushing flows back to the former equalizing tank of wastewater treatment by back flushing effluent weir 20.
Simultaneously, waste water advanced treatment unit also is provided with ozone catalytic system overhaul manhole 22 and downflow type aerating biological filter system overhaul manhole 23, lays respectively on air water mixolimnion 11 and the back flushing gas distribution water distribution layer 19, is convenient to carry out the routine preventive maintenance maintenance of equipment.
As shown in Figure 3: the cross-sectional area of downflow type aerating biological filter is about 1.5-2.5 times of heterogeneous ozone catalytic reactive system cross-sectional area, and concrete big I designs according to different quality.
The support water distribution board of heterogeneous ozone catalytic reactive system and the pressure bearing layer of downflow type aerating biological filter are steel plate or skeleton construction, and installation ABS or stainless steel filter head carry out the gas distribution water distribution on steel plate or armoured concrete slab.
During use, ozone and waste water enter air water mixolimnion 11 through jet orifice 6, rise then through support water distribution board 12, make waste water and ozone react at heterogeneous catalytic oxidation packing layer 13 equably, the heterogeneous catalytic oxidation packing layer by load the haydite of manganese metal series form, its particle diameter is 2～8mm, highly is 3～8m, guarantees 30～60 minutes reaction times.The reaction water outlet is through stainless steel woven wire 14, and the woven wire specification is 10～20 orders, guarantees that heterogeneous carrier do not discharge with waste water, removes the foam that the air water disturbance causes simultaneously, and through effluent weir 15 water outlets, overflow enters downflow type aerating biological filter 9.Earlier, carry out aerobic biodegradation by biologic packing material layer 17 again by air water mixing zone 16 even water quality, filter and remove suspended substances simultaneously, the filter by pressure bearing layer 18 then is at last by water outlet 10 discharged wastewater met the national standard or carry out middle water reuse.
The present invention can handle waste water separately, also can make up with other technology, as a unit waste water is handled.Particularly to containing not biodegradable organic wastewater treatment, as the advanced treatment of percolate, after the advanced treatment of commonly industrial wastewater as water source of reuse etc.
Claims (9)
1, a kind of wastewater treatment equipment based on ozone oxidation and BAF, comprise ozone generation system, air water mixing system and downflow type aerating biological filter, described air water mixing system comprises conveying water pump, Venturi tube and the waste water jet orifice that connects successively, and ozone generation system links to each other with Venturi tube; It is characterized in that: described waste water advanced treatment unit also comprises heterogeneous catalytic ozonation system, and this system comprises air water mixolimnion, support water distribution board, heterogeneous catalytic oxidation packing layer, woven wire and effluent weir from down to up; The waste water jet orifice is arranged in the air water mixolimnion, and effluent weir is communicated with the air water mixing zone of downflow type aerating biological filter upper end; Described heterogeneous catalytic oxidation packing layer by load the haydite of manganese metal series pile up and to form, the haydite particle diameter is 2～8mm, highly is 3～8m.
2, a kind of wastewater treatment equipment according to claim 1 based on ozone oxidation and BAF, it is characterized in that: described woven wire is the stainless steel woven wire, specification is 10～20 orders.
3, a kind of wastewater treatment equipment according to claim 1 based on ozone oxidation and BAF, it is characterized in that: described downflow type aerating biological filter comprises air water mixing zone, biologic packing material layer, pressure bearing layer and back flushing gas distribution water distribution layer from top to bottom successively in the body of pond, also be provided with water outlet in back flushing gas distribution water distribution layer.
4, a kind of wastewater treatment equipment according to claim 3 based on ozone oxidation and BAF, it is characterized in that: described downflow type aerating biological filter also comprises back-purge system, back-purge system comprises back flushing air pump, backwash pump and back flushing effluent weir, back flushing air pump, backwash pump are communicated with back flushing gas distribution water distribution layer respectively, and the back flushing effluent weir is arranged on the top of air water mixing zone.
5, a kind of wastewater treatment equipment based on ozone oxidation and BAF according to claim 3, it is characterized in that: described pressure bearing layer is steel plate or cement plate, and ABS or stainless steel filter head are installed onboard.
6, a kind of wastewater treatment equipment based on ozone oxidation and BAF according to claim 3 is characterized in that: described biologic packing material layer is that the haydite, gac, ceramic honey comb, zeolite of 1～10mm or volcanics granular filler are piled up and formed by particle diameter.
7, a kind of wastewater treatment equipment based on ozone oxidation and BAF according to claim 1 is characterized in that: described influent waste water is carried on water pump and the pipeline that Venturi tube is communicated with and is provided with first valve and under meter successively.
8, a kind of wastewater treatment equipment based on ozone oxidation and BAF according to claim 1, it is characterized in that: described support water distribution board is steel plate or cement plate, and ABS or stainless steel filter head are installed onboard.
9, a kind of wastewater treatment equipment based on ozone oxidation and BAF according to claim 1 is characterized in that: the cross-sectional area of described downflow type aerating biological filter is 1.5-2.5 a times of heterogeneous ozone catalytic reactive system cross-sectional area.
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| CNA2008100297239A CN101323493A (en) | 2008-07-24 | 2008-07-24 | Waste water treatment apparatus based on ozone oxidation and aerating biological filter |
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| CNA2008100297239A CN101323493A (en) | 2008-07-24 | 2008-07-24 | Waste water treatment apparatus based on ozone oxidation and aerating biological filter |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781064A (en) * | 2010-03-12 | 2010-07-21 | 北京林业大学 | Process for advanced treatment of gas wastewater |
| CN101863589A (en) * | 2010-06-09 | 2010-10-20 | 中国海洋石油总公司 | Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter |
| CN101948163A (en) * | 2010-08-27 | 2011-01-19 | 陕西科技大学 | Process method for improving biochemical property of industrial waste water |
| CN101985380A (en) * | 2010-08-02 | 2011-03-16 | 朱向宏 | Micro-polluted water treatment device |
| CN102491563A (en) * | 2011-12-22 | 2012-06-13 | 哈尔滨工业大学 | Three-stage catalysis ozone oxidation water purifying device |
| CN101538102B (en) * | 2009-04-27 | 2012-07-04 | 同济大学 | Ozone-bacteria filter system for advanced treatment of hardly-degradable organic wastewater |
| CN104211159A (en) * | 2014-08-26 | 2014-12-17 | 常州大学 | Device for treating high-concentration ammonia nitrogen in pharmaceutical wastewater by using surface activity catalyst |
| CN104355392A (en) * | 2014-10-30 | 2015-02-18 | 杭州绿色环保技术开发有限公司 | Ozone catalytic oxidation pond device for waste water |
| CN105236697A (en) * | 2015-11-18 | 2016-01-13 | 苏州清然环保科技有限公司 | Organic wastewater treatment device |
| CN106219904A (en) * | 2016-09-14 | 2016-12-14 | 清华大学 | A kind of denitrification dephosphorization system for the treatment of of Power Industrial Recirculating Cooling Water |
| CN107399805A (en) * | 2017-05-10 | 2017-11-28 | 王兴文 | The homogeneous ozonation technology of upward flow fixed bed |
| CN108862847A (en) * | 2018-07-03 | 2018-11-23 | 北京清大国华环境股份有限公司 | A kind for the treatment of method and apparatus of industry phenol wastewater |
| CN108947097A (en) * | 2017-05-27 | 2018-12-07 | 宝山钢铁股份有限公司 | A kind for the treatment of method and apparatus of leveling precision waste water by ozone biochemistry coupling |
| CN110040913A (en) * | 2019-05-10 | 2019-07-23 | 浙江巨能环境工程有限公司 | A kind of advanced treatment process and device of biology non-degradable waste water |
| CN112777882A (en) * | 2021-02-22 | 2021-05-11 | 北京中科康仑环境科技研究院有限公司 | Manganese sand-ozone integrated BAF system and corresponding wastewater treatment method |
-
2008
- 2008-07-24 CN CNA2008100297239A patent/CN101323493A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538102B (en) * | 2009-04-27 | 2012-07-04 | 同济大学 | Ozone-bacteria filter system for advanced treatment of hardly-degradable organic wastewater |
| CN101781064A (en) * | 2010-03-12 | 2010-07-21 | 北京林业大学 | Process for advanced treatment of gas wastewater |
| CN101863589A (en) * | 2010-06-09 | 2010-10-20 | 中国海洋石油总公司 | Method for advanced treatment of wastewater by using combination of catalytic ozonation and internal circulation biological filter |
| CN101985380A (en) * | 2010-08-02 | 2011-03-16 | 朱向宏 | Micro-polluted water treatment device |
| CN101985380B (en) * | 2010-08-02 | 2011-12-21 | 朱向宏 | Micro-polluted water treatment device |
| CN101948163A (en) * | 2010-08-27 | 2011-01-19 | 陕西科技大学 | Process method for improving biochemical property of industrial waste water |
| CN102491563A (en) * | 2011-12-22 | 2012-06-13 | 哈尔滨工业大学 | Three-stage catalysis ozone oxidation water purifying device |
| CN104211159B (en) * | 2014-08-26 | 2016-03-09 | 常州大学 | Surfactivity catalyst treatment pharmacy waste water middle and high concentration ammonia nitrogen device |
| CN104211159A (en) * | 2014-08-26 | 2014-12-17 | 常州大学 | Device for treating high-concentration ammonia nitrogen in pharmaceutical wastewater by using surface activity catalyst |
| CN104355392A (en) * | 2014-10-30 | 2015-02-18 | 杭州绿色环保技术开发有限公司 | Ozone catalytic oxidation pond device for waste water |
| CN104355392B (en) * | 2014-10-30 | 2016-07-27 | 杭州绿色环保技术开发有限公司 | A kind of waste water by ozone catalytic oxidation pool device |
| CN105236697A (en) * | 2015-11-18 | 2016-01-13 | 苏州清然环保科技有限公司 | Organic wastewater treatment device |
| CN106219904A (en) * | 2016-09-14 | 2016-12-14 | 清华大学 | A kind of denitrification dephosphorization system for the treatment of of Power Industrial Recirculating Cooling Water |
| CN107399805A (en) * | 2017-05-10 | 2017-11-28 | 王兴文 | The homogeneous ozonation technology of upward flow fixed bed |
| CN108947097A (en) * | 2017-05-27 | 2018-12-07 | 宝山钢铁股份有限公司 | A kind for the treatment of method and apparatus of leveling precision waste water by ozone biochemistry coupling |
| CN108947097B (en) * | 2017-05-27 | 2021-10-22 | 宝山钢铁股份有限公司 | Ozone biochemical coupling treatment method and device for leveling liquid wastewater |
| CN108862847A (en) * | 2018-07-03 | 2018-11-23 | 北京清大国华环境股份有限公司 | A kind for the treatment of method and apparatus of industry phenol wastewater |
| CN110040913A (en) * | 2019-05-10 | 2019-07-23 | 浙江巨能环境工程有限公司 | A kind of advanced treatment process and device of biology non-degradable waste water |
| CN112777882A (en) * | 2021-02-22 | 2021-05-11 | 北京中科康仑环境科技研究院有限公司 | Manganese sand-ozone integrated BAF system and corresponding wastewater treatment method |
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