CN201634510U - Water processing system of removing nitrate nitrogen pollutant - Google Patents
Water processing system of removing nitrate nitrogen pollutant Download PDFInfo
- Publication number
- CN201634510U CN201634510U CN2010201071726U CN201020107172U CN201634510U CN 201634510 U CN201634510 U CN 201634510U CN 2010201071726 U CN2010201071726 U CN 2010201071726U CN 201020107172 U CN201020107172 U CN 201020107172U CN 201634510 U CN201634510 U CN 201634510U
- Authority
- CN
- China
- Prior art keywords
- water
- carbon source
- nitrate nitrogen
- supplying
- contact oxidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model belongs to the water processing technical field, which provides a water processing system of removing nitrate nitrogen pollutant and mainly comprises a nitrogen removing reactor, a raw water supplying device, a carbon source supplying device and an aeration device. The system changes the continuous inflow manner of adding carbon source to raw water into a sequencing batch inflow manner and separates the main enrichment process from the main degradation process of the nitrate nitrogen pollutant in time sequence. A certain proportion of carbon source is added to the main degradation process of the nitrate nitrogen pollutant, which ensures that the nitrate nitrogen pollutant and carbon source pollutant are degraded by microorganisms fully at the same time on the condition of proper dissolved oxygen concentration. The system makes the best of the carbon source; therefore the processing cost is low. At the same time, because of intermittent drainage control, secondary pollution is avoided, which is caused by effluent carrying too much carbon source.
Description
Technical field
The utility model belongs to water-treatment technology field, particularly relates to a kind of water treatment system that removes nitrate nitrogen contaminants.
Background technology
Inorganic nitrogen pollutent in the slight pollution water body mainly comprises nitric nitrogen, ammonium nitrogen, nitrite nitrogen at present, because nitric nitrogen is more stable, content is generally much larger than other inorganic nitrogen pollutent, thereby nitrate nitrogen contaminants often becomes slight pollution water body one of the more serious index that exceeds standard.
For with the water body of nitric nitrogen as main nitrogen pollutant, it removes principle roughly three kinds: ion-exchange type, membrane sepn type, biological denitrification type, and wherein ion-exchange and film somatotype cost are higher, and have the possibility of secondary pollution; The principle that biological denitrification removes nitric nitrogen is to convert it into harmless nitrogen by heterotroph biology or autotrophic type biological denitrification to discharge.
Existing autotrophic type biological denitrification denitrification process, technology described in Chinese patent ZL01130845.1 file, general input element sulphur or the electrolysis generation protium of adopting is as electron acceptor(EA), under action of microorganisms, remove nitric nitrogen, this technology input cost height, maintenance of the equipment is complicated.
Existing heterotroph biological denitrification denitrification process adopts and directly adds methyl alcohol in former water, ethanol, formic acid, acetate is as carbon source, cultivate the heterotrophic denitrification Microbial denitrogenation, because it is diluted that carbon source such as methyl alcohol adds to the former water continuously, concentration is less, and the degradation speed of carbon source is much higher than the degradation speed of nitric nitrogen, so when dosage equals the theoretical required carbon-nitrogen ratio of denitrogenation, because of former water long through the biotic district time, carbon source consumption is fast, denitrification is not thorough, and denitrification effect is poor, and when carbon source dosage during greater than theoretical carbon-nitrogen ratio, can cause processing cost to increase, simultaneously the portable excessive carbon source of water outlet and increased the chance of secondary pollution.Therefore, existing heterotrophic denitrification denitrification process is difficult to solve the synchronous degradation problem of carbon source and nitrate nitrogen contaminants, the two ratio that adds also is difficult to regulate, described in Chinese patent ZL00129851.8 file, it adopts and add carbon source in shortage in former water, and increases electrochemical autotrophic denitrification equipment to remedy the deficiency of biological heterotrophic denitrification.
The utility model content
In order to solve the problem of above-mentioned existence, main purpose of the present utility model is to provide a kind of water treatment system that removes nitrate nitrogen contaminants, in the utility model utilization of carbon source fully thereby processing cost lower, prevented that because of intermittently controlling water vent water outlet from carrying the secondary pollution problem that excessive carbon source causes simultaneously.
In order to reach above purpose, a kind of water treatment system that removes nitrate nitrogen contaminants that the utility model provides, mainly comprise: denitrification reactor, former water device for supplying, carbon source device for supplying and oxygenating device, wherein said former water device for supplying, carbon source device for supplying and oxygenating device are connected with denitrification reactor by pipeline respectively, and described denitrification reactor also comprises reactor cell body, water-freeing arrangement, biological contact oxidation reactors, oxygen evolution device, back-purge system.
Described oxygenating device is connected with the oxygen evolution device by pipeline;
Described former water device for supplying and carbon source device for supplying can be connected to the biological contact oxidation reactors top, and at this moment, described water-freeing arrangement is located at the below of biological contact oxidation reactors;
Described former water device for supplying and carbon source device for supplying also can be connected to the biological contact oxidation reactors below, and at this moment, described water-freeing arrangement is located at the top of biological contact oxidation reactors;
Described reactor cell body is preferably civil engineering structure pond body, device structure casing or device structure tank body;
Described water-freeing arrangement is preferably perforation header, overflow weir, water shoot etc.;
The biological growth biofilm filler of laying in the described biological contact oxidation reactors is zeolite, haydite, activated carbon, flint rock, hard coal, quartz sand etc., is preferably nitrogen pollutant adsorptive power zeolite strong, biofilm easily, haydite, activated carbon, flint rock etc.;
The carbon source that described carbon source device for supplying is added, contains the higher waste water of carbon concentration, as sugar production wastewater, brewing wastewater etc. at particular methanol, ethanol, sugar soln, starch fluid;
Described oxygenating device is by oxygen evolution device complement lysis oxygen in denitrification reactor;
When the microbial biomass in biological contact oxidation reactors growth too much, when fluid resistance is excessive, regularly described biological contact oxidation reactors is carried out back flushing by described back-purge system, to prevent that microbial film from stopping up, guarantee its normal operation, can adopt water flushing, gas flushing or mode that the two combines, preferred gas, water associating backwash mode;
Owing to contain the pollutents such as microorganism, suspended substance of comparatively high amts in the backwash draining, the backwash draining reenters denitrification reactor after should separating suspension and handles.
Advantage of the present utility model is, compare with traditional continuous water inlet heterotrophic denitrification biological denitrification process, the utility model changes the continuous water intake mode that former water adds carbon source into the sequence batch (water intake mode, on sequential, the main enrichment process of nitrate nitrogen contaminants and the main degradation process of nitrate nitrogen contaminants are separated, in the main degradation process of nitrate nitrogen contaminants, drop into a certain proportion of carbon source, under suitable dissolved oxygen concentration condition, guaranteed that nitrate nitrogen contaminants and carbon source pollutent fully degraded by microorganism simultaneously, in the utility model utilization of carbon source fully thereby processing cost lower, prevented that because of intermittently controlling water vent water outlet from carrying the secondary pollution problem that excessive carbon source causes simultaneously.
Description of drawings
Fig. 1 is the water treatment system synoptic diagram that removes nitrate nitrogen contaminants of the present utility model;
Fig. 2 removes the water treatment system synoptic diagram of nitrate nitrogen contaminants for another kind of the present utility model;
Fig. 3 for of the present utility model another remove the water treatment system synoptic diagram of nitrate nitrogen contaminants.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the technical solution of the utility model is further specified, but its qualification of not opposing:
As shown in Figure 1, a kind of water treatment system that removes nitrate nitrogen contaminants that the utility model provides, comprise denitrification reactor 1, former water device for supplying 2, carbon source device for supplying 3 and oxygenating device 4, wherein said denitrification reactor 1 also comprises reactor cell body 101, water-freeing arrangement 102, biological contact oxidation reactors 103, oxygen evolution device 104 and back-purge system 105, described former water device for supplying 2 and carbon source device for supplying 3 are respectively by the below of pipe connection in the biological contact oxidation reactors 103 of denitrification reactor 1, described water-freeing arrangement 102 is located at the top of biological contact oxidation reactors 103, and described oxygenating device 4 is by the oxygen evolution device 104 of pipe connection in reactor cell body 101.
The former water that contains nitric nitrogen is injected the reactor cell body 101 of denitrification reactor 1 by former water device for supplying 2, at former current during through the biological contact oxidation reactors 103 of microorganism growth biofilm, pollutents such as the nitric nitrogen in the water are caught enrichment by microorganism and filler benefit, and the water that removes nitrogen pollutant is discharged through water-freeing arrangement 102; When nitrogen-containing pollutant after enrichment reaches finite concentration in biological contact oxidation reactors 103, stop the supply of former water device for supplying 2 Central Plains water, close water-freeing arrangement 102 simultaneously.Then by carbon source device for supplying 3 in denitrification reactor 1 supplementary carbon source to aequum and with reactor in the water thorough mixing, under the dissolved oxygen concentration condition of 0.2～1.0mg/L, the pollutents such as nitric nitrogen that the microorganism in the biological contact oxidation reactors 103 catches enrichment by denitrification with the carbon source of replenishing and benefit are fully degraded; After degraded is finished, enter next cycle, open water-freeing arrangement 102 and former water device for supplying 2, proceed sequence batch (and handle the former water that contains nitrate nitrogen contaminants, reciprocation cycle.
Described reactor cell body 101 is preferably civil engineering structure pond body, device structure case (jar) body.Described water-freeing arrangement 102 is preferably perforation header, overflow weir, water shoot etc.The biological growth biofilm filler of laying in the described biological contact oxidation reactors 103 is zeolite, haydite, activated carbon, flint rock, hard coal, quartz sand etc., is preferably nitrogen pollutant adsorptive power zeolite strong, biofilm easily, haydite, activated carbon, flint rock etc.The carbon source that described carbon source device for supplying 3 is added, contains the higher waste water of carbon concentration (as sugar production wastewater, brewing wastewater) etc. at particular methanol, ethanol, sugar soln, starch fluid.Described oxygenating device 4 is by oxygen evolution device 104 complement lysis oxygen in denitrification reactor 1.The growth of microbial biomass in biological contact oxidation reactors 103 too much, when fluid resistance is excessive, regularly biological contact oxidation reactors 103 is carried out back flushing by back-purge system 105, to prevent that microbial film from stopping up, guarantee its normal operation, can adopt water flushing, gas flushing or mode that the two combines, preferred gas, water associating backwash mode.Owing to contain the pollutents such as microorganism, suspended substance of comparatively high amts in the backwash draining, the backwash draining reenters denitrification reactor 1 after should separating suspension and handles.
Again as shown in Figure 2, its another kind that provides for the utility model removes the water treatment system of nitrate nitrogen contaminants, the difference of itself and said system is, by the top of pipe connection in the biological contact oxidation reactors 103 of denitrification reactor 1, described water-freeing arrangement 102 is located at the below of biological contact oxidation reactors 103 respectively for described former water device for supplying 2 and carbon source device for supplying 3.
Again as shown in Figure 3, its provide for the utility model another remove the water treatment system of nitrate nitrogen contaminants, it comprises at least two placed in-line successively denitrification reactors 1.
Below technology contents of the present utility model has been done detailed description.For persons skilled in the art, any conspicuous change of under the prerequisite that does not deviate from the utility model principle it being done can not exceed the protection domain of the application's claims.
Claims (6)
1. water treatment system that removes nitrate nitrogen contaminants, it is characterized in that, mainly comprise: denitrification reactor, former water device for supplying, carbon source device for supplying and oxygenating device, wherein said former water device for supplying, carbon source device for supplying and oxygenating device are connected with denitrification reactor by pipeline respectively, described denitrification reactor also comprises reactor cell body, water-freeing arrangement, biological contact oxidation reactors, oxygen evolution device, back-purge system, and described oxygenating device is connected with the oxygen evolution device by pipeline.
2. a kind of water treatment system that removes nitrate nitrogen contaminants according to claim 1 is characterized in that, described former water device for supplying and carbon source device for supplying are connected to the biological contact oxidation reactors top, and described water-freeing arrangement is located at the below of biological contact oxidation reactors.
3. a kind of water treatment system that removes nitrate nitrogen contaminants according to claim 1 is characterized in that, described former water device for supplying and carbon source device for supplying are connected to the biological contact oxidation reactors below, and described water-freeing arrangement is located at the top of biological contact oxidation reactors.
4. a kind of water treatment system that removes nitrate nitrogen contaminants according to claim 1 is characterized in that described reactor cell body is preferably civil engineering structure pond body, device structure casing or device structure tank body.
5. a kind of water treatment system that removes nitrate nitrogen contaminants according to claim 1 is characterized in that, described water-freeing arrangement is preferably perforation header, overflow weir or water shoot.
6. a kind of water treatment system that removes nitrate nitrogen contaminants according to claim 1 is characterized in that, the biological growth biofilm filler of laying in the described biological contact oxidation reactors is preferably zeolite, haydite, activated carbon or flint rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201071726U CN201634510U (en) | 2010-02-03 | 2010-02-03 | Water processing system of removing nitrate nitrogen pollutant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201071726U CN201634510U (en) | 2010-02-03 | 2010-02-03 | Water processing system of removing nitrate nitrogen pollutant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201634510U true CN201634510U (en) | 2010-11-17 |
Family
ID=43078998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201071726U Expired - Fee Related CN201634510U (en) | 2010-02-03 | 2010-02-03 | Water processing system of removing nitrate nitrogen pollutant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201634510U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523906A (en) * | 2013-09-03 | 2014-01-22 | 中国水利水电科学研究院 | Wastewater treatment device and application thereof as well as wastewater treatment method |
| CN104360597A (en) * | 2014-11-02 | 2015-02-18 | 北京工业大学 | Sewage treatment process optimization control method based on multiple gradient descent |
-
2010
- 2010-02-03 CN CN2010201071726U patent/CN201634510U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523906A (en) * | 2013-09-03 | 2014-01-22 | 中国水利水电科学研究院 | Wastewater treatment device and application thereof as well as wastewater treatment method |
| CN104360597A (en) * | 2014-11-02 | 2015-02-18 | 北京工业大学 | Sewage treatment process optimization control method based on multiple gradient descent |
| CN104360597B (en) * | 2014-11-02 | 2017-02-15 | 北京工业大学 | Sewage treatment process optimization control method based on multiple gradient descent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203866154U (en) | Low-energy-consumption stepped sewage treatment device | |
| CN210122541U (en) | Intelligent sewage advanced treatment system based on micro-nano bubble technology | |
| CN101817615A (en) | Anaerobic-sequencing batch biofilm reactor-artificial wetland method for treating piggery wastewater | |
| CN203346230U (en) | Landfill leachate treatment device | |
| CN101973667B (en) | Combination process and device for deep purification of contaminated surface water | |
| CN102603128A (en) | Method for advanced treatment and recycling of landfill leachate | |
| CN210855718U (en) | Novel rural sewage treatment system | |
| CN104609651B (en) | A kind of Large-scale pig farm advanced waste treatment system | |
| CN108178294A (en) | A kind of method of the low matrix anaerobic ammonia oxidation process of synchronous tandem promoter | |
| CN109095727B (en) | Denitrification and carbon removal device and method for high-ammonia-nitrogen low-carbon-nitrogen-ratio sewage | |
| CN107445304B (en) | Enhanced denitrification method and enhanced denitrification wetland system suitable for subsurface flow constructed wetland | |
| CN107381802B (en) | Efficient nitrogen and phosphorus removal sewage treatment method | |
| CN201634510U (en) | Water processing system of removing nitrate nitrogen pollutant | |
| CN103086502A (en) | Rapid styrene butadiene rubber (SBR) nitrosoation recovery method | |
| CN106587349B (en) | Treatment device for high-ammonia-nitrogen high-organic-matter corn deep processing wastewater | |
| CN113264586A (en) | MBR (membrane bioreactor) process for treating nitrate wastewater | |
| CN203284289U (en) | Combined electrode horizontal subsurface flow wet land device for efficient nitrogen removing of domestic sewage | |
| CN112340843A (en) | Device and method for realizing integrated decarbonization and denitrification of methanogenesis anaerobic ammonium oxidation | |
| CN115893655B (en) | Method for performing microbial anaerobic ammonia oxidation denitrification by taking biochar as filler | |
| CN201890824U (en) | Advanced purification combination device for polluted surface water | |
| CN217535571U (en) | UAD biological fluidized bed denitrification device based on sulfur autotrophy | |
| CN101759299A (en) | Water treatment system and method for removing nitrate nitrogen contaminants | |
| CN212954721U (en) | Livestock and poultry breeding wastewater purification system | |
| CN214327268U (en) | MABR filler combined sewage treatment device | |
| CN104445613A (en) | Mineralized refuse packed bed and wastewater denitrification method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Yu Rongpu Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20110203 |