CN102583936A - Air lift type internal-external double circulation ozone sludge contact reaction device - Google Patents
Air lift type internal-external double circulation ozone sludge contact reaction device Download PDFInfo
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- CN102583936A CN102583936A CN2012100232777A CN201210023277A CN102583936A CN 102583936 A CN102583936 A CN 102583936A CN 2012100232777 A CN2012100232777 A CN 2012100232777A CN 201210023277 A CN201210023277 A CN 201210023277A CN 102583936 A CN102583936 A CN 102583936A
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Abstract
The invention provides an air lift type internal-external double circulation ozone sludge contact reaction device which comprises a body, wherein an internal cavity of the body comprises a first reaction area and a second reaction area which are cut-through up and down; a liquid inlet pipe mounted at the top of the body is communicated with the first reaction area; flow guide baffle plates with micropores are transversely mounted in the first reaction area and positioned below the liquid inlet pipe; a microporous aeration disc arranged at the bottom of the second reaction area is connected with an ozone generator through a pipeline; an outer circulation pipe is mounted at the bottom of the body; one end of the outer circulation pipe is communicated with the second reaction area, and the other end of the outer circulation pipe is communicated with the first reaction area and positioned above the flow guide baffle plates; a reflux pump for providing reflux power is arranged on a pipeline of the outer circulation pipe; and the first reaction area is further connected with an air exhaust pipe. By adopting the flow guide baffle plate and an internal reflux and outer circulation manner, the air lift type internal-external double circulation ozone sludge contact reaction device has the advantages that the utilization rate of ozone is increased, the operation cost for quantitative reduction of the ozone sludge is lowered and the treatment cost of subsequent sludge is decreased.
Description
Technical field
The present invention relates to sludge treatment equipment, the inside and outside two circulation ozone mud contact reacts devices of especially a kind of air lift type.
Background technology
Along with Urbanization in China is accelerated with economical growing, treatment rate of domestic sewage improves year by year, and the sludge yield of municipal water treatment plant also sharply increases.According to incompletely statistics, quantity discharged reaches 13.4 * 10 China's sewage day
5Ten thousand t, about after treatment 0.5% ~ 1.0% sewage are converted into solid matter and agglomerate and sink forms mud.The complicated component of mud is by a variety of mikrobes combine the bacterium colloid that forms and the multiple organism of its absorption, the polymer that inorganics is formed.
Contain a large amount of organism in the excess sludge of Sewage Plant, undressed mud brings secondary pollution after getting into environment, and ecotope and mankind's activity have been constituted serious threat.The treatment and disposal of mud is the integral part of sewage work always, and its expense can account for more than 50% of entire sewage treatment plant working cost.Sludge decrement process research is in recent years risen day by day, and wherein ozone oxidation breaking sludge decrement earns widespread respect to crack rapidly, to crack the efficient height.The ozone breaking sludge carries out in ozone sludge disintegration device; The reaction efficiency of ozone greatly depends on the structure of ozone sludge disintegration device and the operational condition of system; Under heteroid ozone sludge disintegration device and different operating conditions; The mass-transfer efficiency of ozone differs greatly, and mass-transfer efficiency affects the utilization ratio of ozone to a great extent.The ozone utilization rate of existing ozone sludge disintegration device is low, causes sludge disintegration efficient low, and the sludge treatment cost is high.
Summary of the invention
Technical problem to be solved by this invention is; Low to existing ozone sludge disintegration device ozone utilization rate; Sludge treatment cost problem of higher; Provide that a kind of ozone utilization rate is high, mud oxidation disintegration effect is good, the inside and outside two circulation ozone mud contact reacts devices of the air lift type that the sludge treatment expense is low.
In order to solve the problems of the technologies described above, the present invention provides a kind of air lift type inside and outside two circulation ozone mud contact reacts devices, comprises body; It is characterized in that the internal cavity of said body is made up of first reaction zone, second reaction zone of upper and lower perforation, the top of said body is equipped with liquid-inlet pipe; This liquid-inlet pipe communicates with said first reaction zone; Horizontal installation has the flow apron of aperture in this first reaction zone, and this flow apron is positioned at the below of said liquid-inlet pipe, and the bottom of said second reaction zone is provided with the micro-pore aeration dish; This micro-pore aeration dish is connected with the ozonizer of peripheral hardware through pipeline; The bottom of said body is equipped with outer circulating tube, and this outer circulating tube one end is communicated with said second reaction zone, and the other end and said first reaction zone are communicated with and are positioned at the top of said flow apron; The pipeline of said outer circulating tube is provided with the reflux pump that backflow power is provided, and said first reaction zone also is connected with vapor pipe.
The quantity of said flow apron is 5～6 groups; This flow apron comprises dull and stereotyped and funnel-form baffle plate, and dull and stereotyped and funnel-form baffle plate alternately setting on above-below direction, the funnel-form incorgruous setting in bottom of this two adjacent funnel-form baffle plate; Aperture between adjacent in vertical direction flow apron staggers each other; The percentage of open area of flow apron is 20～30%, and aperture is a circular hole, and its aperture is 1mm～10mm.
The reactor drum inner core of vertical setting and up/down perforation is installed in said second reaction zone, and said micro-pore aeration dish is positioned at the bottom of this reactor drum inner core, and the aperture that is uniformly distributed with on this micro-pore aeration dish is a circular hole, and its aperture is 10 μ m～30 μ m.
The bottom of said body is equipped with the emptying valve.
Positively effect of the present invention is: adopt flow apron and internal reflux outer circulation, improved the utilization ratio of ozone, reduce running cost in the ozone sludge reduction, reduced the processing costs of follow-up mud, be convenient to promote the use of.
Description of drawings
Fig. 1 structural representation of the present invention.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explain.
As shown in Figure 1, the inside and outside two circulation ozone mud contact reacts devices of a kind of air lift type comprise columnar body 1; The internal cavity of said body 1 is made up of first reaction zone 12, second reaction zone 13 of upper and lower perforation; Also comprise the Y-tube that is installed in body 1 top, the drain pipe of this Y-tube communicates with first reaction zone 12, and first liquid-inlet pipe of this Y-tube is connected with the mud liquid-inlet pipe through first regulated valve 101; The flow apron 5 that is positioned at first reaction zone 12 is installed in the drain pipe bottom of Y-tube; Flow apron 5 comprises two flat boards and three funnel-form baffle plates, the funnel-form all incorgruous setting in bottom of adjacent two funnel-form baffle plates, and flat board is arranged in the middle of the funnel-form baffle plate of two groups of incorgruous layouts; On flow apron 5, have the circular aperture of some irregular distributions; Circular hole between adjacent in vertical direction flow apron staggers up and down, and the percentage of open area of flow apron 5 is 20～30%, and the aperture of circular hole is 1mm～10mm.
The reactor drum inner core of vertical setting and up/down perforation is installed in second reaction zone 13, in the bottom of this reactor drum inner core 7 micro-pore aeration dish 2 is installed, the aperture of the aperture that is uniformly distributed with on this micro-pore aeration dish 2 is 10 μ m～30 μ m.Micro-pore aeration dish 2 is connected with the ozonizer 3 of peripheral hardware through pipeline.The bottom of body 1 is connected with an end of outer circulating tube 6 through the 3rd regulated valve 103; The other end of this outer circulating tube 6 is connected with second liquid-inlet pipe of Y-tube through second regulated valve 102; The pipeline of outer circulating tube 6 is provided with reflux pump 4, the first reaction zones 12 that backflow power is provided and also is connected with vapor pipe 8.
In the bottom of body 1 emptying valve 11 is installed.
Principle of work:
Open first regulated valve 101, close the 3rd regulated valve 103, mud is introduced the internal cavity of body, mud mixed liquid falls under gravity in second reaction zone 13, and the liquid level of control mud mixed liquid is no more than second reaction zone 13.Close first regulated valve 101 this moment, opens second regulated valve 102 and the 3rd regulated valve 103, starts ozonizer 3 and carry out aeration, starts reflux pump 4 simultaneously.Ozone bubbles is overflowed from micro-pore aeration dish 2; At first with reactor drum inner core 7 mud hybrid reactions because the ozone bubbles number is numerous, in reactor drum inner core 7 with mud thorough mixing and continuous come-up; Simultaneously under the ozone dynamic action of aeration; Mud mixed liquid is in the state of circulating outside reactor drum inner core 7 and reactor drum inner tube wall, the mud mixed liquid of second reactor bottom is back to the top of first reactor drum through outer circulating tube 6 under reflux pump 4 effects simultaneously; And drop on described flow apron 5; And along level or funnelform baffle plate baffling, flow down layer by layer, fully contact further reaction with the ozone of effusion mud mixed liquid once more in the process that flows down.The mud mixed liquid that refluxes will fall into second reaction zone 13 at last, carries out the abundant contact reacts of aeration and ozone once more, so circulation.Reacted tail gas enters atmosphere after getting into ozone absorbent solution through vapor pipe 8.
Closeall regulated valve after reacting completely is closed ozonizer 3 and reflux pump 4 simultaneously.Open emptying valve 11, the mud after cracking is discharged from emptying valve 11.
Analyze the effect of this device through the embodiment of following combination testing data;
Under step operation operational conditions, mud can be thought the contact reacts time of mud and ozone in the residence time of reactor drum.In sludge concentration is 4500 ~ 6000mg/L; The ozone inlet gas concentration is 25mg/L ~ 30mg/L; When air input was 0.6 L/min ~ 1.4 L/min, ozone tail gas concentration was respectively about 5.21 mg/L and 5.09mg/L at 10min and 30min, and ozone utilization rate is 84.4% and 84.8%; Sludge disintegration rate behind the 10min is more than 75%, and sludge disintegration is complete behind the 30min.
This shows; The utilization ratio of the inside and outside two circulation ozone mud contact reacts device ozone of air lift type of the present invention is high; Sludge yield is little, and mud oxidation disintegration effect is good, thereby has reduced the processing costs of follow-up mud; This device also is easy to existing sewage work is transformed, and in mud refluxes, increases this device and just can realize mud decrement.
The above embodiment of the present invention only be for explanation the present invention did for example, and be not to be qualification to embodiment of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation and changes.Here can't give exhaustive to all embodiments.Everyly belong to the row that conspicuous variation that technical scheme of the present invention amplifies out or change still are in protection scope of the present invention.
Claims (4)
1. inside and outside two circulation ozone mud contact reacts devices of an air lift type; Comprise body (1); It is characterized in that the internal cavity of said body (1) is made up of first reaction zone (12), second reaction zone (13) of upper and lower perforation, the top of said body (1) is equipped with liquid-inlet pipe; This liquid-inlet pipe communicates with said first reaction zone (12); Horizontal installation has the flow apron (5) of aperture in this first reaction zone (12), and this flow apron (5) is positioned at the below of said liquid-inlet pipe, and the bottom of said second reaction zone (13) is provided with micro-pore aeration dish (2); This micro-pore aeration dish (2) is connected with the ozonizer (3) of peripheral hardware through pipeline; The bottom of said body (1) is equipped with outer circulating tube (6), and these outer circulating tube (6) one ends are communicated with said second reaction zone (13), and the other end and said first reaction zone (12) are communicated with and are positioned at the top of said flow apron (5); The pipeline of said outer circulating tube (6) is provided with the reflux pump (4) that backflow power is provided, and said first reaction zone (12) also is connected with vapor pipe (8).
2. the inside and outside two circulation ozone mud contact reacts devices of air lift type according to claim 1; It is characterized in that the quantity of said flow apron (5) is 5～6 groups, this flow apron (5) comprises dull and stereotyped and funnel-form baffle plate; And dull and stereotyped and funnel-form baffle plate alternately is provided with on above-below direction; The funnel-form all incorgruous setting in bottom of adjacent two funnel-form baffle plates, the aperture between adjacent in vertical direction flow apron staggers each other, and the percentage of open area of flow apron (5) is 20～30%; Aperture is a circular hole, and its aperture is 1mm～10mm.
3. the inside and outside two circulation ozone mud contact reacts devices of air lift type according to claim 1; It is characterized in that; The reactor drum inner core (7) of vertical setting and up/down perforation is installed in said second reaction zone (13); Said micro-pore aeration dish (2) is positioned at the bottom of this reactor drum inner core (7), and the aperture that is uniformly distributed with on this micro-pore aeration dish (2) is a circular hole, and its aperture is 10 μ m～30 μ m.
4. the inside and outside two circulation ozone mud contact reacts devices of air lift type according to claim 2 is characterized in that the bottom of said body (1) is equipped with emptying valve (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210023277 CN102583936B (en) | 2012-02-02 | 2012-02-02 | Air lift type internal-external double circulation ozone sludge contact reaction device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210023277 CN102583936B (en) | 2012-02-02 | 2012-02-02 | Air lift type internal-external double circulation ozone sludge contact reaction device |
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| CN102583936A true CN102583936A (en) | 2012-07-18 |
| CN102583936B CN102583936B (en) | 2013-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253830A (en) * | 2013-05-30 | 2013-08-21 | 浙江海洋学院 | Biological pollution control method for industrial aquaculture wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06154796A (en) * | 1992-11-26 | 1994-06-03 | Meidensha Corp | Method and equipment for sludge treatment |
| JPH08132099A (en) * | 1994-11-11 | 1996-05-28 | Kurita Water Ind Ltd | Device for ozonating biological sludge |
| JP2002336890A (en) * | 2001-05-18 | 2002-11-26 | Ebara Corp | Method and device for treating organic effluent |
| CN101708937A (en) * | 2009-11-27 | 2010-05-19 | 南京工业大学 | Method for promoting sludge reduction by ozone |
| CN202415338U (en) * | 2012-02-02 | 2012-09-05 | 重庆大学 | Ozone-sludge contacting reactor |
-
2012
- 2012-02-02 CN CN 201210023277 patent/CN102583936B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06154796A (en) * | 1992-11-26 | 1994-06-03 | Meidensha Corp | Method and equipment for sludge treatment |
| JPH08132099A (en) * | 1994-11-11 | 1996-05-28 | Kurita Water Ind Ltd | Device for ozonating biological sludge |
| JP2002336890A (en) * | 2001-05-18 | 2002-11-26 | Ebara Corp | Method and device for treating organic effluent |
| CN101708937A (en) * | 2009-11-27 | 2010-05-19 | 南京工业大学 | Method for promoting sludge reduction by ozone |
| CN202415338U (en) * | 2012-02-02 | 2012-09-05 | 重庆大学 | Ozone-sludge contacting reactor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253830A (en) * | 2013-05-30 | 2013-08-21 | 浙江海洋学院 | Biological pollution control method for industrial aquaculture wastewater |
| CN103253830B (en) * | 2013-05-30 | 2015-09-30 | 浙江海洋学院 | Biological pollution control method for industrial aquaculture wastewater |
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| CN102583936B (en) | 2013-08-21 |
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