CN201264957Y - Sludge digestive fluid short-range nitration and anaerobic ammoxidation combined denitrification apparatus - Google Patents
Sludge digestive fluid short-range nitration and anaerobic ammoxidation combined denitrification apparatus Download PDFInfo
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- CN201264957Y CN201264957Y CNU2008201086936U CN200820108693U CN201264957Y CN 201264957 Y CN201264957 Y CN 201264957Y CN U2008201086936 U CNU2008201086936 U CN U2008201086936U CN 200820108693 U CN200820108693 U CN 200820108693U CN 201264957 Y CN201264957 Y CN 201264957Y
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Abstract
The utility model discloses an autotrophic nitrogen removal device with A/O shortcut nitrification of sludge digestive juice and anaerobic ammonium oxidation of granular sludge. The device comprises a digestive juice water tank, an A/O shortcut nitrification tank, a sedimentation tank, a middle water tank and an anaerobic ammonium oxidation tank. The digestive juice water tank is communicated with the first chamber of the A/O shortcut nitrification tank, which serves as an oxygen-deficient area, by the intake pump of the A/O shortcut nitrification tank; the sedimentation tank is provided with a central pipe; the upper part of the sedimentation tank is communicated with the middle water tank by a water pipe; and the anaerobic ammonium oxidation tank is provided with a water bath sleeve and a granular sludge bed. The device of the utility model is applicable to the shortcut nitrification and the nitrogen removal treatment of the sludge digestive juice of the sewage treatment plant, which has advanced technology, simple structure, convenient operation and good water purification treatment effect.
Description
Technical field
The utility model belongs to low-carbon and nitrogen (C/N) than high-concentration ammonia nitrogenous wastewater bio-denitrification technology field, specifically be a kind ofly at first to realize that by dynamic control municipal wastewater treatment plant is rich in the reaction of ammonia nitrogen sludge digestion liquid short distance nitration, then under the condition that need not the organic carbon source existence, by Anammox reaction (ANAMMOX, Anaerobic Ammonia Oxidation) removes the device that nitrogen in the Digestive system is finished denitrification of autotrophic organism, be applicable to sludge digestion liquid, late period percolate and the biological denitrificaion of the high ammonia-nitrogen wastewater of low C/N ratio such as coking chemical waste water.
Background technology
The water of China pollutes constantly aggravation, because the nitrogen phosphorus eutrophication phenomenon that excessive accumulation causes in natural water constantly breaks out, the situation of the shortage of water resources of China also is on the rise simultaneously, and water pollutes and the dual-pressure of shortage of water resources has restricted the China's economic social development.Thereby improve the municipal effluent nitric efficiency, be the key point of sewage disposal and regeneration.
In municipal effluent biochemical treatment process, propagation of organic while of microbiological deterioration self has produced a large amount of excess sludges, and these mud and primary sludge carry out anaerobic treatment usually in digester.During anaerobic digestion because the anaerobism ammonification of organonitrogen, the ammonia nitrogen NH that biosynthesizing consumes in the sink drainage
4 +-N major part is transferred in the sludge digestion liquid, as a result the NH of Digestive system
4 +-N makes sludge digestion liquid become typical high NH up to 800-1500mg/L
4 +-N hangs down C/N waste water, contained NH
4 +-N accounts for the 15%-25% of municipal sewage plant's total nitrogen load.Sludge digestion liquid is refluxed existing biochemical processing process and former water is handled together, and the nitrogen load that this has increased sewage disposal greatly causes denitrogenation dephosphorizing efficient to be difficult to improve.The metabolic characteristics of anaerobic sludge digestion and sludge digestion liquid directly are back to the traditional technology of sink drainage, are that many sewage works nitric efficiency low is main but through commonly overlooked crux.For the sludge digestion liquid of low C/N, the famine of organic carbon source is the barrier that its nitric efficiency can't improve, and adds the expense that organic carbon source can significantly increase sewage water denitrification.Therefore, need to propose the device of more efficiently denitrogenation.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, to propose the device of a kind of sludge digestion liquid short distance nitration and Anammox combined denitrification, promptly at first realizing municipal wastewater treatment plant Digestive system middle and high concentration NH
4 +The short distance nitration reaction of-N then realizes the Anammox reaction again, finally realizes the device of the sludge digestion liquid autotrophic denitrification of economical and efficient.
The purpose of this utility model is achieved through the following technical solutions:
The device of sludge digestion liquid short distance nitration and Anammox combined denitrification is characterized in that: be provided with Digestive system pond, A/O short distance nitration pond, settling tank, intermediate pool, anaerobic ammonium oxidation tank;
The Digestive system pond is connected with the lattice chamber the 1st as the oxygen-starved area in A/O short distance nitration pond by the intake pump in A/O short distance nitration pond, and agitator is installed in this lattice chamber, and A/O short distance nitration pond is divided into 5-10 lattice chambers with the dividing plate of the water hole that is crisscross arranged up and down; This bottom, lattice chamber is provided with aeration head, and the aeration air pump is communicated with aeration head by gas meter, air control valve; A/O short distance nitration pond is communicated with settling tank by rising pipe, and the settling tank bottom promptly is communicated with the first lattice chamber with the nitrification tank oxygen-starved area by sludge reflux pump, mud return line, and settling tank is provided with pipe core, is provided with the taper reflector below pipe core; Settling tank is provided with sample cock from top to bottom, and settling tank top is communicated with intermediate pool by water pipe;
Also be provided with anaerobic ammonium oxidation tank in addition, this pond be provided with cylinder bodily form water bath sleeve and round shape granular mud bed, Sludge Bed is located in the middle of the water bath sleeve, and Sludge Bed top is provided with triphase separator and top seal plate, and the top of this separator is communicated with alkali lye bottle, gas meter and vapor pipe; Sludge Bed top supernatant liquor enters into the Sludge Bed bottom by Sludge Bed effluent recycling pump and circulates; Described water bath sleeve top is provided with the perforation water absorption tube, and this water absorption tube is communicated with the perforation water distributor that is located at the bottom by the water-bath recycle pump, and water bath sleeve top also is provided with electric heater, temperature regulator, and the water bath sleeve bottom is provided with water drain valve; The intake pump of intermediate pool by anaerobic ammonium oxidation tank is communicated with the granular mud bed bottom of anaerobic ammonium oxidation tank, and the Sludge Bed top is overflowed water and discharged by rising pipe, and the anaerobic ammonium oxidation tank outside is provided with several sampling valves of connection Sludge Bed.
The method of said apparatus operation of the present utility model mainly may further comprise the steps:
1) start A/O short distance nitration pond:
2) start anaerobic ammonium oxidation tank:
3) after A/O short distance nitration pond and anaerobic ammonium oxidation tank are finished startup respectively, this sludge digestion liquid short distance nitration and the series operation of Anammox combined denitrification system:
The know-why of the utility model operation:
Bio-denitrifying sewage is by nitrated with NH
4 +-N is converted into NO
3 --N, again by denitrification with NO
3 --N is converted into nitrogen and overflows from water.The denitrification stage is with NO
3 --N is an electron acceptor(EA), and organism is as electron donor, with NO
3 --N is converted into nitrogen and finishes biological denitrificaion.But for high NH
4 +The denitrogenation of-N sludge digestion liquid, its C/N is than only about 1, because the organic carbon source wretched insufficiency causes the traditional biological nitric efficiency to reach about 10%.
In device of the present utility model, low C/N than the sludge digestion liquid of high ammonia nitrogen at first in A/O short distance nitration reactor, by dynamic control, keep free ammonia FA concentration suitable in the reactor, make it only suppress nitrous acid oxidation bacterium NOB, but do not suppress ammonia nitrogen oxidation bacterium AOB, thereby realize and keep high NO
2 -The short distance nitration of-N cumulative percentage, the while, nitrated need proceeded to the NH about 50%
4 +-N is oxidized, i.e. the water outlet NH of A/O reactor
4 +-N and NO
2 -The concentration ratio of-N is about 1:1.The water outlet of A/O short distance nitration reactor, in anaerobic ammonia oxidation reactor, under the condition that does not need organic carbon source, NH
4 +-N and NO
2 --N is converted into nitrogen by the Anammox reaction, finally finishes the whole process autotrophic biological denitrificaion.And after realizing that the independent denitrogenation of sludge digestion liquid is the side denitrogenation, be back to the denitrogenation dephosphorizing efficient that main flow area can improve municipal wastewater treatment plant greatly again.
The Anammox reaction is the nineties later stage official confirmation ammonia nitrogen bio-oxidation pathways metabolism and a pattern that find, brand-new.Anaerobic ammonia oxidizing bacteria can reach the effect of efficient denitrification by following peculiar mode under the situation that does not have organic carbon source to exist:
2NH
4 ++ 1.5O
2=NH
4 ++ NO
2 -+ H
2O+2H
+(short distance nitration reaction)
NH
4 ++ NO
2-=N
2+ 2H
2O (Anammox reaction)
For the sludge digestion liquid of low C/N than high ammonia nitrogen, realize that the Anammox reaction is the optimal path of its denitrogenation, also be simultaneously the denitride technology that is fit to the most with its water quality characteristics.
The device of sludge digestion liquid short distance nitration of the present utility model and Anammox combined denitrification compared with prior art has following advantage:
1) need not to add the high-efficiency biological denitrification that organic carbon source is finished sludge digestion liquid, solve high NH
4 +-N hangs down the difficult problem that C/N ratio wastewater nitric efficiency is difficult to improve, and can reduce the construction and the working cost of sewage water denitrification by a relatively large margin;
2) aerobicization water inlet NH only
4 +50% of-N, and only need be oxidized to NO
2 --N, and needn't be oxidized to NO
3 --N the stage has reduced the volume and the aeration expense of reactor greatly, has reduced nitrated basicity demand simultaneously;
3) total nitrogen of anaerobic ammonia oxidation reactor load can reach 1.0kgTN/m
3More than the d, and greenhouse gases CO
2Generation very low;
4) use this technology after, the nitric efficiency of sludge digestion liquid improves, be back to the main flow area of sewage work after, greatly reduce the nitrogen load of main flow area, improved denitrogenation dephosphorizing efficient, help the regeneration of sewage, prevent the generation of body eutrophication.
Description of drawings
Fig. 1 is the apparatus structure synoptic diagram of sludge digestion liquid short distance nitration and Anammox combined denitrification.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described: embodiment: as shown in Figure 1, the device of sludge digestion liquid short distance nitration and Anammox combined denitrification is by Digestive system pond, A/O short distance nitration pond, settling tank, intermediate pool, anaerobic ammonium oxidation tank.The useful volume in Digestive system pond is 500L, and the useful volume of A/O short distance nitration pond and anaerobic ammonium oxidation tank is respectively 20L, 8L, and the useful volume of intermediate pool is 40L, and the useful volume of settling tank is respectively 15L.A/O short distance nitration pond is of a size of L * B * H=40cm * 10cm * 55cm, is equally divided into 4 lattice chambers, and lattice chamber the 1st is the anoxia stirring district.Anaerobic ammonium oxidation tank is of a size of Φ * H=40cm * 190cm, and the intermediate particle Sludge Bed is of a size of Φ * H=8cm * 200cm, and water-bath telescopic volume is 100L.
Claims (1)
1, the device of a kind of sludge digestion liquid short distance nitration and Anammox combined denitrification is characterized in that: be provided with Digestive system pond (1), A/O short distance nitration pond (2), settling tank (3), intermediate pool (4), Anammox (5);
The Digestive system pond is connected with the lattice chamber the 1st as the oxygen-starved area in A/O short distance nitration pond by the intake pump (1.1) in A/O short distance nitration pond, agitator (2.3) is installed in this lattice chamber, and A/O short distance nitration pond is divided into 5-10 lattice chambers with the dividing plate (2.5) of the water hole that is crisscross arranged up and down; This bottom, lattice chamber is provided with aeration head (2.7), and aeration air pump (2.1) is communicated with aeration head by gas meter (2.2), air control valve (2.4); A/O short distance nitration pond is communicated with settling tank (3) by rising pipe (2.6), the settling tank bottom promptly is communicated with the first lattice chamber with the nitrification tank oxygen-starved area by sludge reflux pump (2.8), mud return line (2.9), settling tank is provided with pipe core (3.1), is provided with taper reflector (3.4) below pipe core; Settling tank is provided with sample cock (3.2) from top to bottom, and settling tank top is communicated with intermediate pool (4) by water pipe (3.3);
Also be provided with anaerobic ammonium oxidation tank (5) in addition, this pond is provided with cylinder bodily form water bath sleeve (5.11) and round shape granular mud bed (5.10), Sludge Bed is located in the middle of the water bath sleeve, Sludge Bed top is provided with triphase separator (5.7) and top seal plate (5.6), and the top of this separator is communicated with alkali lye bottle (5.2), gas meter (5.1) and vapor pipe; Sludge Bed top supernatant liquor enters into the Sludge Bed bottom by Sludge Bed effluent recycling pump (5.16) and circulates; Described water bath sleeve top is provided with perforation water absorption tube (5.3), this water absorption tube is communicated with the perforation water distributor (5.15) that is located at the bottom by water-bath recycle pump (5.12), water bath sleeve top also is provided with electric heater (5.4), temperature regulator (5.5), and the water bath sleeve bottom is provided with water drain valve (5.14); Intermediate pool is communicated with the granular mud bed bottom of anaerobic ammonium oxidation tank by the intake pump (5.17) of anaerobic ammonium oxidation tank, water is overflowed by rising pipe (5.9) discharging in the Sludge Bed top, and the anaerobic ammonium oxidation tank outside is provided with several sampling valves (5.8) that are communicated with Sludge Bed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201086936U CN201264957Y (en) | 2008-06-13 | 2008-06-13 | Sludge digestive fluid short-range nitration and anaerobic ammoxidation combined denitrification apparatus |
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|---|---|---|---|
| CNU2008201086936U CN201264957Y (en) | 2008-06-13 | 2008-06-13 | Sludge digestive fluid short-range nitration and anaerobic ammoxidation combined denitrification apparatus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289264B (en) * | 2008-06-13 | 2010-10-06 | 北京城市排水集团有限责任公司 | Combined denitrification apparatus and method by shortcut nitrification and anaerobic ammonium oxidation of sludge-digestion liquid |
| CN101891345A (en) * | 2010-07-13 | 2010-11-24 | 重庆大学 | Reinforced simultaneous nitrogen and phosphorus removal sewage treatment equipment and method for municipal sewage with low carbon source at low oxygen concentration |
| CN101734790B (en) * | 2008-11-20 | 2011-07-20 | 中国环境科学研究院 | Water treatment method for controlling nitrogen and phosphorus contents and reducing sludge by using ozone coupling ASBR/SBR, and reactor |
| CN102515429A (en) * | 2011-12-09 | 2012-06-27 | 北京工业大学 | Device and method for combined denitrification of anoxic-oxic (A/O) shortcut nitrification and anaerobic ammonia oxidation of late-stage landfill leachate |
| CN103663692A (en) * | 2013-09-03 | 2014-03-26 | 杭州师范大学 | Integrated shortcut nitrification/anaerobic ammoxidation reactor |
| CN106006956A (en) * | 2016-07-10 | 2016-10-12 | 北京工业大学 | Device and method for synchronously treating high-concentration NO3--N waste water, sludge digestion liquid and municipal sewage |
| CN106365313A (en) * | 2016-10-27 | 2017-02-01 | 沈阳建筑大学 | Device for biological phosphorus removal through biological phosphate reduction process |
| CN108706829A (en) * | 2018-06-01 | 2018-10-26 | 中国科学院青岛生物能源与过程研究所 | A kind of the self-forming dynamic membrane sewage-treatment plant and technique of integration denitrification and dephosphorization |
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2008
- 2008-06-13 CN CNU2008201086936U patent/CN201264957Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289264B (en) * | 2008-06-13 | 2010-10-06 | 北京城市排水集团有限责任公司 | Combined denitrification apparatus and method by shortcut nitrification and anaerobic ammonium oxidation of sludge-digestion liquid |
| CN101734790B (en) * | 2008-11-20 | 2011-07-20 | 中国环境科学研究院 | Water treatment method for controlling nitrogen and phosphorus contents and reducing sludge by using ozone coupling ASBR/SBR, and reactor |
| CN101891345A (en) * | 2010-07-13 | 2010-11-24 | 重庆大学 | Reinforced simultaneous nitrogen and phosphorus removal sewage treatment equipment and method for municipal sewage with low carbon source at low oxygen concentration |
| CN102515429A (en) * | 2011-12-09 | 2012-06-27 | 北京工业大学 | Device and method for combined denitrification of anoxic-oxic (A/O) shortcut nitrification and anaerobic ammonia oxidation of late-stage landfill leachate |
| CN103663692A (en) * | 2013-09-03 | 2014-03-26 | 杭州师范大学 | Integrated shortcut nitrification/anaerobic ammoxidation reactor |
| CN106006956A (en) * | 2016-07-10 | 2016-10-12 | 北京工业大学 | Device and method for synchronously treating high-concentration NO3--N waste water, sludge digestion liquid and municipal sewage |
| CN106006956B (en) * | 2016-07-10 | 2019-03-22 | 北京工业大学 | A kind of synchronization process higher concentration NO3-The apparatus and method of-N waste water, sludge-digestion liquid and municipal sewage |
| CN106365313A (en) * | 2016-10-27 | 2017-02-01 | 沈阳建筑大学 | Device for biological phosphorus removal through biological phosphate reduction process |
| CN108706829A (en) * | 2018-06-01 | 2018-10-26 | 中国科学院青岛生物能源与过程研究所 | A kind of the self-forming dynamic membrane sewage-treatment plant and technique of integration denitrification and dephosphorization |
| CN108706829B (en) * | 2018-06-01 | 2021-04-13 | 中国科学院青岛生物能源与过程研究所 | Integrated nitrogen and phosphorus removal authigenic dynamic membrane sewage treatment device and process |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090701 Effective date of abandoning: 20080613 |