CN2863781Y - High-concentration ammonia nitrogen waste water treatment apparatus - Google Patents
High-concentration ammonia nitrogen waste water treatment apparatus Download PDFInfo
- Publication number
- CN2863781Y CN2863781Y CNU2005201406593U CN200520140659U CN2863781Y CN 2863781 Y CN2863781 Y CN 2863781Y CN U2005201406593 U CNU2005201406593 U CN U2005201406593U CN 200520140659 U CN200520140659 U CN 200520140659U CN 2863781 Y CN2863781 Y CN 2863781Y
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- Prior art keywords
- zeolite
- waste water
- ammonia nitrogen
- water
- nitrogen
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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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- Water Treatment By Sorption (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a waste water treatment apparatus characterized in that an aeration apparatus is disposed at the middle and lower part of zeolite layer of the zeolite reactor, the gas-water ratio for controlling aeration is 1:1-2:1, a reflux pipe is provided between the water outflow and water inlet. The nitrosomon biological membrane formed in the upper aerobic area oxidizes the ammonia-nitrogen absorbed in the waste water and zeolite by shortcut nitrification to nitrite, thereby the zeolite is obtained simultaneous biological regeneration; the denitrifying bacteria in the lower anoxic area deoxidizes the refluxed nitrite to inorganic gaseous nitrogen, therefore the biological regeneration is realized. Biological degradation and zeolite absorption with strong anti-shock loading can process high ammonia-nitrogen loading which can reach 0.15mg/g.h with removal rate of 90%, also capable of degrading the other organic pollution in the waste water, thereby reaching one machine multiple usages.
Description
Technical field
Utility model relates to a kind of wastewater treatment equipment, is used in particular for handling the ammonia nitrogen waste water that contains high density and handles.
Technical background
Zeolite is a kind of active adsorption material, is applied to the processing of ammonia nitrogen waste water, is the adsorption of the ammonia nitrogen in the water by zeolite is gathered on the zeolite, reaches by the regeneration to zeolite and removes the ammonia nitrogen purpose.Only the simple similar filtered version that adopts in the prior art, zeolite is placed in the reactor shell, make treating water pass through the zeolite bed, though this mode can effectively be removed ammonia nitrogen in the waste water, but its deficiency is: when zeolite adsorption saturated, need to regenerate to zeolite separately, as utilize alkali lye or salts solution by the zeolite bed, make it with alkali lye or salts solution in metallic cation and the NH of zeolite adsorption
4 +Exchange takes place and obtain regeneration, the ammonia nitrogen that adsorbs on the zeolite is removed; Or directly change adsorbing saturated zeolite.This kind manipulation of regeneration, system and regenerative operation complexity, regeneration cost is higher.Secondly, the ammonia nitrogen that regeneration displaces also needs otherwise processed, is easy to cause secondary pollution.Besides, such reactor can only be removed NH in the waste water by physical chemistry method
3-N can not degrade to other organic pollutant in the waste water, and total N not had removal effect, function singleness basically.In addition, owing to only have physisorption, zeolite is easy to adsorb saturated and loses adsorptive power, thereby the anti impulsion load ability is relatively poor.
Summary of the invention
The purpose of utility model is to overcome the deficiency of above-mentioned prior art, providing a kind of can directly utilize microorganism to make the saturated zeolite of absorption obtain regeneration, and realize that synchronous short distance nitration-denitrifying removes the ammonia denitrogenation, and can remove other organic pollutants in the waste water simultaneously, and non-secondary pollution produces, the high-concentration ammonia nitrogenous wastewater treatment unit that the anti impulsion load ability is strong.
The utility model purpose realizes, the main improvement is in the zeolite layer middle and lower part of zeolite reactors aerating apparatus to be set, zeolite layer is divided into aerobic short distance nitration district, top and anoxic short-cut denitrification district, bottom, what aerobic short distance nitration district, top was formed on the zeolite surface enrichment is the aerobic biologic membrane of dominant bacteria with the Nitrosomas, the ammonia nitrogen that adsorbs in waste water and the zeolite is oxidized to nitrite through short distance nitration, thereby makes zeolite obtain bio-regeneration; Anoxic short-cut denitrification district, bottom, then forming with the anti-Nitromonas in Asia is the microbial film of dominant bacteria, and by return line being set at exhalant region and bilged compartment, the nitrite of top oxidation finally is reduced to gaseous nitrogen, thereby realize short distance nitration-denitrifying ammonia denitrogenation, realization the object of the invention removed.Specifically, utility model high-concentration ammonia nitrogenous wastewater treatment unit comprises reactor and interior dress zeolite filler, it is characterized in that there is aerating apparatus the zeolite layer middle and lower part, and the gas-water ratio of control aeration is 1: 1-2: 1, and exhalant region and bilged compartment have return line.
Test shows aerobic zone gas-water ratio 1: 1-2: 1, and this gas-water ratio more helps the growth of aerobic Nitrosomas.Gas-water ratio is excessive, causes zeolite filler to run off easily, increases running cost, and is unfavorable for the growth of Nitrosomas, also can hinder the carrying out of short distance nitration; Gas-water ratio is too small, then can cause the oxygen supply deficiency, influences the short distance nitration effect of the rate of propagation and the ammonia nitrogen of Nitrosomas.The oxygen-starved area, bottom is a dominant bacteria with the anti-Nitromonas in Asia then, and the nitrite that the top oxidation is produced finally is reduced into gaseous nitrogen by refluxing.
The said middle and lower part of utility model aerating apparatus the results showed, a kind of about 1/3 place that makes progress, zeolite layer bottom that better is arranged on, realize the properly distributed of aerobic zone and oxygen-starved area, thereby can make zeolite obtain biochemical regeneration, help the carrying out of short-cut denitrification again, the realization response device remove the ammonia denitrogenation.
Utility model reactor for treatment process is: waste water at first enters from the zeolite reactors bottom, and by zeolite layer, ammonia nitrogen is adsorbed by zeolite in the waste water.The aerobic Nitrosomas of advantage is oxidized to nitrite with the ammonia nitrogen that adsorbs in waste water and the zeolite through short distance nitration in the aerobic zone, and the ammonia nitrogen of zeolite adsorption is converted to nitrite and obtains regeneration, realizes the bio-regeneration of zeolite.Inferior anti-Nitromonas in the oxygen-starved area of zeolite layer bottom, utilize the nitrite of upper strata effluent recycling, as the short-cut denitrification substrate, and in conjunction with other organism in the waste water as carbon source, and utilize the ammonia nitrogen that adsorbs in the zeolite as nutrition, and the nitrite that refluxes is reduced to gaseous nitrogen, overflow with aeration, realization short distance nitration-denitrifying except that the ammonia denitrogenation is also realized the bio-regeneration of zeolite simultaneously.Microbial film is interior because the ununiformity of oxygen and organic mass transfer forms aerobic zone and oxygen-starved area in microbial film simultaneously, also has short distance nitration-denitrifying ammonia denitrification functions that removes.Secondly, owing to also there are a large amount of other aerobic different oxygen animalcules in the reactor, also can degrade to other organic pollutants in the waste water.Through operation after a while, reactor because of dammed in the sewage suspended particle and form the large number of biological film at zeolite surface, cause the filtering velocity reduction, the then back flushing water and air that enters by the bottom cleaning that recoils.
Utility model is owing to be provided with aerating apparatus in the zeolite layer middle and lower part of removing the ammonia nitrogen zeolite reactors, pass through control aeration gas-water ratio 1: 1-2: 1 at aerobic zone, make in the zeolite surface growth a large amount of Nitrosomas microbial films is arranged, the ammonia nitrogen that adsorbs in waste water and the zeolite is oxidized to nitrite through short distance nitration, thereby makes zeolite obtain synchronous biological regeneration; In the oxygen-starved area, for inferior denitrifying bacteria provides growing environment, reflux by nitrite with top, it is reduced to inorganic gaseous nitrogen the most at last, enters in the atmosphere, has also realized bio-regeneration simultaneously.The utility model device, the reclaiming process flow process is simple and direct, convenient operation and management, investment and running cost are low, has avoided prior art to need regeneration separately or changes, and causes secondary pollution; Realized short distance nitration-denitrification, synchronous biological regeneration; Biological degradation and zeolite adsorption are fit to handle high-concentration ammonia nitrogenous wastewater, and anti impulsion load is strong.Utility model high-concentration ammonia nitrogenous wastewater treatment unit, the ammonia nitrogen loading height can reach 0.15mg/g.h, and ammonia nitrogen removal frank can reach more than 90%.
Simultaneously, the utility model device also can be degraded synchronously to other organic pollutants in the waste water, reaches multi-use.In addition,, make zeolite keep higher ion-exchange level in a long time, make that the ammonia nitrogen in the waste water is removed efficiently and stably because Nitrosomas has alleviated the zeolite adsorption load to the Degradation of ammonia nitrogen in the waste water.
Below in conjunction with an optimization embodiment, further specify utility model.
Description of drawings
Accompanying drawing is a utility model zeolite reactors structural representation.
Embodiment
Embodiment: referring to accompanying drawing, utility model high-concentration ammonia nitrogenous wastewater treatment unit comprises a reactor shell 9, and its lower bottom part has filter plate 4, and there is cobble supporting layer 5 top, and supporting layer top be a zeolite layer 8, and the zeolite layer bottom makes progress and 1/3 aerating apparatus 7 arranged.There is water-in 3 filter plate 4 belows, and back flushing inlet mouth 1 and back flushing water-in 2.There is thief hole 6 the reactor middle and lower part, and there are water collecting dike 10 and water outlet 11 in the top.Exhalant region and bilged compartment have return line 12.
Treating processes as mentioned above.
Claims (2)
1, high-concentration ammonia nitrogenous wastewater treatment unit comprises reactor and interior dress zeolite filler, it is characterized in that there is aerating apparatus the zeolite layer middle and lower part, and the gas-water ratio of control aeration is 1: 1-2: 1, and exhalant region and bilged compartment have return line.
2,, it is characterized in that said aerating apparatus is arranged on about 1/3 place that makes progress, zeolite layer bottom according to the described high-concentration ammonia nitrogenous wastewater treatment unit of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201406593U CN2863781Y (en) | 2005-12-30 | 2005-12-30 | High-concentration ammonia nitrogen waste water treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201406593U CN2863781Y (en) | 2005-12-30 | 2005-12-30 | High-concentration ammonia nitrogen waste water treatment apparatus |
Publications (1)
| Publication Number | Publication Date |
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| CN2863781Y true CN2863781Y (en) | 2007-01-31 |
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| CNU2005201406593U Expired - Lifetime CN2863781Y (en) | 2005-12-30 | 2005-12-30 | High-concentration ammonia nitrogen waste water treatment apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434915A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Method for cultivating nitrosobacteria flora and method for treating wastwater containing ammonia nitrogen |
| CN102453675A (en) * | 2010-10-15 | 2012-05-16 | 中国石油化工股份有限公司 | Culture system of function strengthened microbe and directional concentration method |
| CN103253817A (en) * | 2013-06-09 | 2013-08-21 | 谭振光 | Zeolite regeneration technology using natural aeration backflush of sterile water |
| CN103374539A (en) * | 2013-07-02 | 2013-10-30 | 中国科学院烟台海岸带研究所 | Proteus mirabilis capable of eliminating ammonia nitrogen in water environment and application thereof |
| CN103435161A (en) * | 2013-09-03 | 2013-12-11 | 北京工业大学 | Sequencing batch bio-membrane reactor device and method capable of achieving partial nitrification |
| CN105540824A (en) * | 2015-12-18 | 2016-05-04 | 华南理工大学 | Removal method for ammonia nitrogen in low-temperature wastewater based on adsorption and biochemical regeneration of zeolite |
| CN106242051A (en) * | 2016-07-31 | 2016-12-21 | 华南理工大学 | A kind of short-cut nitrification and denitrification denitrification process containing Zeolite-bio fluid bed |
| CN108217934A (en) * | 2018-01-31 | 2018-06-29 | 华南理工大学 | A kind of middle low concentration wastewater low-carbon processing method and processing device of low carbon/nitrogen ratio |
| CN114455782A (en) * | 2022-03-01 | 2022-05-10 | 江西挺进环保科技股份有限公司 | Embedded short-cut nitrification coupling denitrification device for inorganic ammonia nitrogen wastewater |
-
2005
- 2005-12-30 CN CNU2005201406593U patent/CN2863781Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434915A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Method for cultivating nitrosobacteria flora and method for treating wastwater containing ammonia nitrogen |
| CN101434915B (en) * | 2007-11-15 | 2013-11-20 | 中国石油化工股份有限公司 | Method for cultivating nitrosobacteria flora and method for treating wastwater containing ammonia nitrogen |
| CN102453675A (en) * | 2010-10-15 | 2012-05-16 | 中国石油化工股份有限公司 | Culture system of function strengthened microbe and directional concentration method |
| CN102453675B (en) * | 2010-10-15 | 2013-05-01 | 中国石油化工股份有限公司 | Culture system of function strengthened microbe and directional concentration method |
| CN103253817A (en) * | 2013-06-09 | 2013-08-21 | 谭振光 | Zeolite regeneration technology using natural aeration backflush of sterile water |
| CN103374539A (en) * | 2013-07-02 | 2013-10-30 | 中国科学院烟台海岸带研究所 | Proteus mirabilis capable of eliminating ammonia nitrogen in water environment and application thereof |
| CN103374539B (en) * | 2013-07-02 | 2014-12-10 | 中国科学院烟台海岸带研究所 | Proteus mirabilis capable of eliminating ammonia nitrogen in water environment and application thereof |
| CN103435161A (en) * | 2013-09-03 | 2013-12-11 | 北京工业大学 | Sequencing batch bio-membrane reactor device and method capable of achieving partial nitrification |
| CN105540824A (en) * | 2015-12-18 | 2016-05-04 | 华南理工大学 | Removal method for ammonia nitrogen in low-temperature wastewater based on adsorption and biochemical regeneration of zeolite |
| CN106242051A (en) * | 2016-07-31 | 2016-12-21 | 华南理工大学 | A kind of short-cut nitrification and denitrification denitrification process containing Zeolite-bio fluid bed |
| CN108217934A (en) * | 2018-01-31 | 2018-06-29 | 华南理工大学 | A kind of middle low concentration wastewater low-carbon processing method and processing device of low carbon/nitrogen ratio |
| CN114455782A (en) * | 2022-03-01 | 2022-05-10 | 江西挺进环保科技股份有限公司 | Embedded short-cut nitrification coupling denitrification device for inorganic ammonia nitrogen wastewater |
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| EXPY | Termination of patent right or utility model |