CN104045153B - A kind of device reducing nitrous oxide generating capacity in anaerobic ammonia oxidation reactor - Google Patents
A kind of device reducing nitrous oxide generating capacity in anaerobic ammonia oxidation reactor Download PDFInfo
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- CN104045153B CN104045153B CN201410297902.6A CN201410297902A CN104045153B CN 104045153 B CN104045153 B CN 104045153B CN 201410297902 A CN201410297902 A CN 201410297902A CN 104045153 B CN104045153 B CN 104045153B
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Abstract
The invention discloses a kind of device reducing nitrous oxide generating capacity in anaerobic ammonia oxidation reactor.This device comprises pump sump, anaerobic ammonia oxidation reactor, pH regulator groove, temperature control unit and gas extractor, anaerobic ammonia oxidation reactor is main body, the bottom of water inlet from pump sump inflow anaerobic ammonia oxidation reactor is controlled by intake pump, water inlet after treatment, a part directly outer row is water outlet, another part enters pH regulator groove as circulation fluid after pH regulator, is flowed into bottom anaerobic ammonia oxidation reactor from anaerobic ammonia oxidation reactor top by recycle pump controlled circulation liquid through pH regulator groove again; Temperature control unit is by the temperature of insulation water management anaerobic ammonia oxidation reactor, and gas extractor is used for collecting gas collection, to N in gas extractor
2the concentration of O carries out Real-Time Monitoring.The present invention effectively can control the generating capacity of anaerobic ammonia oxidation reactor percent of greenhouse gases nitrous oxide, reduces secondary pollution, has the advantages such as easy to operate simultaneously.
Description
Technical field
The invention belongs to anaerobic ammonia oxidation process technical field, particularly a kind of device reducing nitrous oxide generating capacity in anaerobic ammonia oxidation reactor.
Background technology
Anammox is a kind of novel biological dinitrification technology in sewage disposal.Under anaerobic, anaerobic ammonia oxidizing bacteria utilizes nitrite for electron acceptor(EA), is the bioprocesses of nitrogen by ammonium oxidation.Reaction does not need oxygen and organic participation, is the bio-denitrification technology of current less expensive, its research and the exploitation of technique is had to the meaning of Sustainable development.
Research finds, anaerobic ammonia oxidizing bacteria, while denitrogenation, can produce greenhouse gases nitrous oxide, cause secondary pollution to environment, how to reduce the generating capacity of nitrous oxide in anaerobic ammonia oxidation reactor and becomes current research difficult point.
Summary of the invention
The object of the invention is the problem producing nitrous oxide for anaerobic ammonium oxidation process, a kind of device reducing nitrous oxide generating capacity in anaerobic ammonia oxidation reactor is provided, by controlling the concentration of water-in inorganic carbon IC, thus control the generating capacity of nitrous oxide further.
The present invention is achieved in that a kind of device reducing nitrous oxide generating capacity in anaerobic ammonia oxidation reactor, comprise pump sump, anaerobic ammonia oxidation reactor, pH regulator groove, temperature control unit and gas extractor, anaerobic ammonia oxidation reactor is main body, comprise intake pump and recycle pump, intake pump controls water inlet flows into anaerobic ammonia oxidation reactor bottom from pump sump, water inlet after treatment, a part directly outer row is water outlet, another part enters pH regulator groove after pH regulator as circulation fluid, after pH regulator groove converges with water inlet again, bottom anaerobic ammonia oxidation reactor water-in is flowed into from anaerobic ammonia oxidation reactor top by recycle pump controlled circulation liquid, temperature control unit is by the temperature of insulation water management anaerobic ammonia oxidation reactor, and gas extractor is used for collecting gas collection, to N in gas extractor
2the concentration of O carries out Real-Time Monitoring, as N in gas extractor
2when the concentration of O is higher than discharge benchmark, then reduce the concentration of water-in inorganic carbon IC further, until N in gas extractor
2till the concentration of O is up to standard.
Described pH regulator groove controls the concentration of inorganic carbon IC in circulation fluid by adding acid solution, then regulates the concentration of water-in inorganic carbon IC to be not more than 120mg/L by the size of controlled circulation flow quantity.
Apparatus of the present invention effectively can control the generating capacity of anaerobic ammonia oxidation reactor percent of greenhouse gases nitrous oxide, reduce secondary pollution, have easy to operate advantage simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Mark in figure: L1-is intake; L2-is incubated water; L3-circulation fluid; L4-water outlet; L5-gas collection; P1-intake pump; P2-recycle pump; 1-pump sump; 2-anaerobic ammonia oxidation reactor; 3-pH regulating tank; 4-temperature control unit; 5-gas extractor.
Embodiment
embodiment:
A kind of device reducing nitrous oxide generating capacity in anaerobic ammonia oxidation reactor, comprise pump sump 1, upflow type anaerobic ammonia oxidation reactor 2, pH regulator groove 3, temperature control unit 4 and gas extractor 5, upflow type anaerobic ammonia oxidation reactor 2 is main body, its volume is 8 liters, internal diameter 70 millimeters, high 900 millimeters, comprise intake pump P1 and recycle pump P2, flowed into the bottom of upflow type anaerobic ammonia oxidation reactor 2 from pump sump 1 by intake pump P1 control water inlet L1, water inlet L1 after treatment, a part directly outer row is water outlet L4, another part enters pH regulator groove 3 after pH regulator as circulation fluid L3, the flow bottom upflow type anaerobic ammonia oxidation reactor 2 is flowed into again from anaerobic ammonia oxidation reactor 2 top through pH regulator groove 3 by recycle pump P2 controlled circulation liquid L3, the temperature that temperature control unit 4 controls upflow type anaerobic ammonia oxidation reactor 2 by insulation water L2 is 31 ~ 33 DEG C, and gas extractor 5 is used for collecting gas collection L5, to N in gas extractor 5
2the concentration of O carries out Real-Time Monitoring, as N in gas extractor 5
2when the concentration of O is higher than discharge benchmark, then reduce the concentration of water-in inorganic carbon IC further, until N in gas extractor 5
2till the concentration of O is up to standard.
Described pH regulator groove 3 controls the concentration of inorganic carbon IC in circulation fluid L3 by adding acid solution, then regulates the concentration of water-in inorganic carbon IC to be 14 ~ 200mg/L by the size of controlled circulation liquid L3 flow.
Said apparatus was through the continuous operation of 44 days, and the percentage composition of the nitrous oxide produced after Anammox process when different water-in inorganic carbon IC concentration is in table 1.
Table 1 water-in inorganic carbon IC concentration and nitrous oxide content relation table
| Measuring position | Inorganic carbon IC concentration (mg/L) | Nitrous oxide content (%) |
| Water-in | 14.57 | 0.4078 |
| Water-in | 14.81 | 0.3760 |
| Water-in | 14.81 | 0.3750 |
| Water-in | 25.01 | 0.2937 |
| Water-in | 25.01 | 0.1584 |
| Water-in | 56.50 | 0.3182 |
| Water-in | 62.50 | 0.3917 |
| Water-in | 63.63 | 0.3473 |
| Water-in | 121.38 | 0.6470 |
| Water-in | 131.00 | 0.6233 |
| Water-in | 140.50 | 0.7797 |
| Water-in | 174.75 | 0.8306 |
| Water-in | 190.00 | 0.7886 |
| Water-in | 198.75 | 0.9323 |
| Water-in | 198.75 | 1.0900 |
Inorganic carbon is the necessary material of Anammox bacteria growing, water-in inorganic carbon IC concentration at 0.1 ~ 0.5g/L (with Na
2hCO
3meter) time can meet biological growth needs.As shown in table 1, along with the increase of water-in inorganic carbon IC concentration, the content of the nitrous oxide that Anammox reaction process produces also increases thereupon, 120mg/L is the flex point that the content of nitrous oxide increases, therefore under the condition meeting anaerobic ammonia oxidizing bacteria growth needs, when control water-in inorganic carbon IC concentration is lower (being not more than 120mg/L), the generating capacity of nitrous oxide can be reduced.
Claims (1)
1. one kind is reduced the device of nitrous oxide generating capacity in anaerobic ammonia oxidation reactor, it is characterized in that this device comprises pump sump (1), anaerobic ammonia oxidation reactor (2), pH regulator groove (3), temperature control unit (4) and gas extractor (5), anaerobic ammonia oxidation reactor (2) is main body, comprise intake pump (P1) and recycle pump (P2), the bottom of water inlet (L1) from pump sump (1) inflow anaerobic ammonia oxidation reactor (2) is controlled by intake pump (P1), water inlet (L1) after treatment, a part directly outer row is water outlet (L4), another part enters pH regulator groove (3) after pH regulator as circulation fluid (L3), by the water-in of recycle pump (P2) controlled circulation liquid (L3) from inflow anaerobic ammonia oxidation reactor (2) bottom after pH regulator groove (3) converges with water inlet (L1) again, anaerobic ammonia oxidation reactor (2) top, temperature control unit (4) controls the temperature of anaerobic ammonia oxidation reactor (2) by insulation water (L2), and gas extractor (5) is used for collecting gas collection (L5), to N in gas extractor (5)
2the concentration of O carries out Real-Time Monitoring, as N in gas extractor (5)
2when the concentration of O is higher than discharge benchmark, then reduce the concentration of water-in inorganic carbon IC further, until N in gas extractor (5)
2till the concentration of O is up to standard,
Described pH regulator groove (3) controls the concentration of inorganic carbon IC in circulation fluid (L3) by adding acid solution, then regulates the concentration of water-in inorganic carbon IC to be not more than 120mg/L by the size of controlled circulation liquid (L3) flow.
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| CN105036339B (en) * | 2015-08-27 | 2017-03-22 | 桂林理工大学 | Integrated anaerobic ammonia oxidation reactor |
| CN107555599A (en) * | 2017-09-06 | 2018-01-09 | 广东工业大学 | A kind of short-cut nitrification and denitrification sbr reactor system and its control method for handling rubbish leachate |
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| JPS59123599A (en) * | 1982-12-28 | 1984-07-17 | Ebara Infilco Co Ltd | Treatment of waste water containing nitrogenous sulfer compound and ammonia |
| US5820760A (en) * | 1997-06-30 | 1998-10-13 | Competitive Technologies Of Pa, Inc. | Process for reducing nitrous oxide emission from waste water treatment |
| DE102009048333A1 (en) * | 2009-10-06 | 2011-05-19 | Leaderman & Associates Co., Ltd. | Treating nitrogen containing waste water, comprises providing reactor with liquid for growth of several microorganisms, and introducing nitrogen containing waste water into the reactor and discharging effluent from the reactor |
| CN202729892U (en) * | 2012-07-29 | 2013-02-13 | 北京工业大学 | Decrement control device of nitrous oxide (N2O) generated in denitrifying phosphorus removal process |
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| "氮氧化物气体的产生及其对厌氧氨氧化的影响研究";文林 等;《环境科学与技术》;20120430;第35卷(第4期);第99-103页 * |
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Application publication date: 20140917 Assignee: Guangxi Youke Environmental Protection Technology Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2022450000241 Denomination of invention: A device for reducing nitrous oxide production in anaerobic ammonia oxidation reactor Granted publication date: 20160406 License type: Common License Record date: 20221206 |
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Application publication date: 20140917 Assignee: Guilin xingbaili Machinery Manufacturing Co.,Ltd. Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2023450000024 Denomination of invention: A device for reducing the occurrence of nitrous oxide in anaerobic ammonia oxidation reactors Granted publication date: 20160406 License type: Common License Record date: 20230506 |