CN101508484A - Denitrification water treatment system - Google Patents
Denitrification water treatment system Download PDFInfo
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- CN101508484A CN101508484A CNA2009100811000A CN200910081100A CN101508484A CN 101508484 A CN101508484 A CN 101508484A CN A2009100811000 A CNA2009100811000 A CN A2009100811000A CN 200910081100 A CN200910081100 A CN 200910081100A CN 101508484 A CN101508484 A CN 101508484A
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- hollow cavity
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- biologic packing
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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
Abstract
The invention belongs to the technical field of water treatment, and provides a denitrification water treatment system. The system comprises a water treatment pond, a water inlet, a water outlet, a plurality of groups of biological fillers connected in series and arranged in the water treatment pond, and an aeration system; and the system can also comprises a reflux system. When the water treatment process is performed, the concentrations of the dissolved oxygen inside and outside a hollow cavity of the biological filler are different, the types of the microbes grown inside and outside the hollow cavity of the biological filler are also different, the microbes grown outside the hollow cavity are mainly aerobes, and the microbes grown inside the hollow cavity are mainly anaerobes. Because the flow rate of air flow or water flow around the cavity is different, a pressure difference between the inside and the outside of the cavity is created, under the action of the pressure difference, the pollutants inside and outside the hollow cavity undergo mass transfer by gaps such as a mud hole, an exhaust hole and the like so as to provide nutritive elements for various microbes, thereby realizing the synchronous operation of the nitrification of the aerobes and the denitrification of the anaerobes in the same region; and while realizing the removal of the organic pollutants by the microbe membrane method, the denitrogenation property of the filler is also greatly improved.
Description
Technical field
The invention belongs to water-treatment technology field, particularly relate to a kind of denitrification water treatment system.
Background technology
For the ammonia nitrogen pollutant in the sewage, it removes principle and realizes by nitrification (ammonia nitrogen is oxidized to nitrate nitrogen) and denitrification (nitrate nitrogen is reduced to nitrogen) at present.Because nitrobacteria growth needs oxyty higher, the environment of denitrifying bacteria growth needs dissolved oxygen lower, so main methods has three kinds at present:
Method one (as the anoxic aerobic activated sludge process): in the body of pond the oxygen-starved area is set, the sewage mixed solution after the aerobic nitrification is got to the oxygen-starved area by the recycle system, this class methods shortcoming is that energy consumption is higher, and the situation that carbon source lacks the denitrification effect difference often occurs;
Method two (as sequencing batch active sludge): by carrying out intermittent aeration at aerobic zone, create the anaerobic environment of certain period, but this method also has influence on the normal growth and the breeding of aerobic bacteria, the treatment effect that influence is whole, its pond body effective reaction time is only by aeration time, and pond body utilization ratio is generally about 50%;
Method three (as biological contact oxidation process or biological aerated filter process): by adding biologic packing material at aerobic zone, the different dissolved oxygen amounts that obtain according to the microorganism of accompanying microbial film shallow-layer and deep layer on the filler carry out the denitrification of the nitrated and deep layer microorganism of microbial film top layer microorganism, the shortcoming of this method is when forming the microbial film thickening, enhancing along with internal layer Microbial denitrogenation performance, because it is less that internal layer microbial nutrition obtains, nutritive deficiency, be in the endogenous metabolism phase, cause the microbial film adhesion property relatively poor, come off easily, therefore the denitrogenation ability is not high, and effect is also unstable.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of denitrification water treatment system.This kind denitrification water treatment system can effectively be realized nitrification and denitrification simultaneously, has that effect is good, energy consumption is low, the efficient advantages of higher.
In order to reach above purpose, a kind of denitrification water treatment system provided by the invention comprises water treating pond, water-in and water outlet, is arranged in some groups of biologic packing material and the aerating systems that are connected in series in the water treating pond, wherein:
Described biologic packing material is a hollow cavity, described hollow cavity is respectively equipped with a venting hole and mudhole at least at its two ends, at least be provided with a cross-under pipe or two cross-under rings between the venting hole at described two ends and the mudhole again, described cross-under pipe or cross-under ring are connected with hollow cavity inner wall by fixing muscle;
Described hollow cavity can form by integral molded plastic, also can be connected with the biofilm material by support frame to combine, and described biofilm material can be fixedlyed connected with support frame by modes such as bonding, cross-under, bolts;
Described hollow cavity is preferably ball-type, spheroid shape, cylinder shape, polygonal etc.;
Described biofilm material is preferably silk, cloth, net or sheet etc., its material soft or hard all can, cavity material is preferably porous material or softwood matter, to strengthen the transmission speed of pollutent inside and outside the cavity;
The cavity wall of described hollow cavity has certain slope, so that discharge body refuse;
All gases and the unexpected air bubble that enters cavity that described venting hole can be used for microbial metabolism in the cavity is produced are discharged biologic packing material;
Moreover described hollow inside cavity can be provided with the experimental process chamber again; The surfaces externally and internally of described support frame also can increase biofilm area and microbial biomass by increasing modes such as embossing, burr, blade and attachment fiber silk;
The maximum diameter of described hollow cavity is preferably 5mm-300mm;
Described aerating system comprises air-blast device and corollary apparatus, wherein said air-blast device is preferably air blast oxygenating devices such as gas blower, air compressor, jet aerator, surface aerating machine, plate-spinning aerator, air or oxygen can be got to and carry out the oxygenation aeration in the water.
In addition, for increasing pond body inner fluid speed, improve the pollutent exchange velocity of filler hollow cavity inside and outside, this kind denitrification water treatment system provided by the present invention, can comprise a return-flow system again, this return-flow system comprises backflow power set and corollary apparatus, and described backflow power set can be recirculation water pump, diving mixer, plug-flow equipment etc.By described return-flow system, can strengthen the flow velocity of pool inner water, improve treatment effect, also can avoid occurring at the bottom of the pond situation of too much deposition simultaneously.
When adopting this kind denitrification water treatment system provided by the invention to carry out water technology, the described biologic packing material layout of some groups of serial connections is installed in the water treating pond, the inside and outside dissolved oxygen concentration difference of cavity, the microbe species of growth is difference to some extent also, outside the chamber in the microorganism based on aerobic microbiological, microorganism then contains the anoxic microorganism of larger proportion in the chamber.Because air-flow or flow rate of water flow difference around the cavity, the pressure reduction that impelled the inside and outside generation of cavity, under differential pressure action, cavity inner and outer pollution thing carries out mass transfer by gaps such as mudhole and venting holes, for various microorganisms provide nutritive element, thereby realized carrying out synchronously of in the same area aerobic microbiological nitrification and the denitrification of anoxic microorganism, when realizing that microorganism film technique removes organic pollutant, can also improve the nitrogen removal performance of filler greatly.
The present invention has following beneficial effect:
Adopt denitrification water treatment system provided by the invention, do not need to establish in addition oxygen-starved area and aerobic zone in the water treating pond body, difference in functionality by the microorganism inside and outside the biologic packing material, realize that water body flows and the pollution substance exchange under this biologic packing material subenvironment, make the pollutent (as difficult degradation pollutent, ammonia nitrogen, phosphorus etc.) that is difficult to thoroughly remove under the various single aerobic conditions in the water by efficiently removing under the dissimilar action of microorganisms inside and outside the biologic packing material cavity.
When adopting biologic packing material provided by the invention to carry out water technology, this biologic packing material has been created two kinds of environment, the microbial function of two kinds of region growings is more single-minded, and the working process medium power consumes little, therefore can guarantee that (0.10 yuan/m of cost can cut down the consumption of energy under the less processing energy consumption
3More than), to pollutant removals such as ammonia nitrogen efficient (can improve nitric efficiency more than 60%).It is little also to have sludge yield simultaneously, denitrification process requires advantages such as not strict to carbon source, in addition, this technology increases anaerobic environment, also can improve the ability of polyP bacteria dephosphorization, by of the hydrolysis of anoxic microorganism, improved the clearance of difficult degradation polymer organic pollutant in the biological tank to hardly degraded organic substance.
Description of drawings
Fig. 1 is a kind of embodiment synoptic diagram of denitrification water treatment system provided by the invention;
Fig. 2 is the schematic perspective view that contains broken section of a kind of biologic packing material in the denitrification water treatment system provided by the invention;
Fig. 3 is the schematic perspective view that contains broken section of the another kind of biologic packing material in the denitrification water treatment system provided by the invention;
Fig. 4 is the another kind of embodiment synoptic diagram of denitrification water treatment system provided by the invention.
Embodiment
The present invention is further described below in conjunction with specific embodiment and accompanying drawing, but the qualification of the present invention of not opposing:
As shown in Figure 1, a kind of denitrification water treatment system provided by the invention comprises water treating pond 10, water-in 101 and water outlet 102, is arranged in some groups of biologic packing material 20 and the aerating systems 30 that are connected in series in the water treating pond, wherein:
Described biologic packing material 20 is a hollow cavity, as shown in Figures 2 and 3, described hollow cavity is respectively equipped with a venting hole 201 and mudhole 202 at least at its two ends, at least be provided with a cross-under pipe 203 or two cross-under rings 204 between the venting hole 201 at described two ends and the mudhole 202 again, described cross-under pipe 203 or cross-under ring 204 is connected with hollow cavity inner wall by fixing muscle 205;
Described hollow cavity can form by integral molded plastic, also can be connected with biofilm material 207 by support frame 206 to combine, and described biofilm material 207 can be fixedlyed connected with support frame 206 by modes such as bonding, cross-under, bolts;
Described hollow cavity is preferably ball-type, spheroid shape, cylinder shape, polygonal etc.;
Described biofilm material 207 is preferably silk, cloth, net or sheet etc., its material soft or hard all can, be preferably porous or softwood matter, to improve pollutent transmission speed inside and outside the cavity;
The cavity wall of described hollow cavity has certain slope, so that discharge body refuse;
All gases and the unexpected air bubble that enters cavity that described venting hole 201 is used for microbial metabolism in the cavity is produced are discharged biologic packing material 20;
Moreover described hollow inside cavity can be provided with the experimental process chamber again; The surfaces externally and internally of described hollow cavity also can increase biofilm area and microbial biomass by increasing modes such as embossing, burr, blade and attachment fiber silk;
The maximum diameter of described hollow cavity is preferably 5mm-300mm;
Described aerating system 30 comprises air-blast device and corollary apparatus, wherein said air-blast device can carry out the oxygenation aeration so that air or oxygen is got to for air blast oxygenating devices such as gas blower, air compressor, jet aerator, surface aerating machine, plate-spinning aerators in the water.In this specific embodiment, described air-blast device adopts gas blower 301, and described corollary apparatus comprises air-out apparatus 302 and pipeline 303, and described air-out apparatus 302 is arranged in the below of the biologic packing material 20 of above-mentioned some groups of serial connections.
Again as shown in Figure 4, another kind of denitrification water treatment system provided by the invention, comprise water treating pond 10, water-in 101 and water outlet 102, be arranged in some groups of biologic packing material 20, aerating system 30 and the return-flow systems 40 that are connected in series in the water treating pond, described return-flow system 40 comprises backflow power set and corollary apparatus, and described backflow power set can be recirculation water pump, diving mixer, plug-flow equipment etc.The power set of backflow described in this specific embodiment adopts backflow water pump 401, described corollary apparatus comprises discharging device 402 and reflux line 403, the air-out apparatus 302 of described aerating system 30 is arranged in the side-lower of the biologic packing material 20 of above-mentioned some groups of serial connections, and the discharging device 402 of described return-flow system 40 is arranged in the below of the biologic packing material 20 of above-mentioned some groups of serial connections.
When adopting this kind denitrification water treatment system provided by the invention to carry out water technology, because described biologic packing material hollow cavity inside and outside dissolved oxygen concentration difference, the microbe species of growth is difference to some extent also, outside the chamber in the microorganism based on aerobic microbiological, microorganism then contains the anoxic microorganism of larger proportion in the chamber.Under the influence of current or air-flow, the transmission of pollutent has been advanced in the packing cavity inside and outside, thereby realized the carrying out synchronously of nitrification and denitrification denitrogenation in the same area, when realizing that microorganism film technique removes organic pollutant, can also improve the nitrogen removal performance of filler greatly.
Below its content of the present invention has been done to elaborate.For persons skilled in the art, any conspicuous change of under the prerequisite that does not deviate from the principle of the invention it being done can not exceed the protection domain of the application's claims.
Claims (10)
1, a kind of biologic packing material, it is characterized in that, this biologic packing material is a hollow cavity, described hollow cavity is respectively equipped with a venting hole and mudhole at least at its two ends, at least be provided with a cross-under pipe or two cross-under rings between the venting hole at described two ends and the mudhole again, described cross-under pipe or cross-under ring are connected with hollow cavity inner wall by fixing muscle.
2, a kind of biologic packing material according to claim 1 is characterized in that, described hollow cavity forms by integral molded plastic.
3, a kind of biologic packing material according to claim 1 is characterized in that, described hollow cavity comprises support frame and biofilm material, described biofilm material by bonding, cross-under, fasten take over the meaning one or more modes combination fixedly connected with support frame.
4, a kind of biologic packing material according to claim 1 is characterized in that, the shape of described hollow cavity be preferably ball-type, spheroid shape, cylinder shape, polygonal wherein any one.
5, a kind of biologic packing material according to claim 3 is characterized in that, described biofilm material is preferably one or more combination of silk, cloth, net or sheet.
6, a kind of biologic packing material according to claim 1 is characterized in that, described hollow inside cavity is provided with the experimental process chamber again.
7, a kind of biologic packing material according to claim 1 is characterized in that, the surfaces externally and internally of described hollow cavity increases embossing, burr, blade or fiber yarn one or more combination wherein.
8, a kind of denitrification water treatment system, it is characterized in that, comprise water treating pond, water-in and water outlet, be arranged in some groups of biologic packing material and the aerating systems that are connected in series in the water treating pond, wherein: described biologic packing material is a hollow cavity, described hollow cavity is respectively equipped with a venting hole and mudhole at least at its two ends, at least be provided with a cross-under pipe or two cross-under rings between the venting hole at described two ends and the mudhole again, described cross-under pipe or cross-under ring are connected with hollow cavity inner wall by fixing muscle.
9, a kind of denitrification water treatment system according to claim 8, it is characterized in that, described aerating system comprises an air-blast device at least, this air-blast device be preferably gas blower, air compressor, jet aerator, surface aerating machine, plate-spinning aerator wherein any one.
10, a kind of denitrification water treatment system according to claim 8 is characterized in that, this system comprises a return-flow system again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100811000A CN101508484A (en) | 2009-04-02 | 2009-04-02 | Denitrification water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100811000A CN101508484A (en) | 2009-04-02 | 2009-04-02 | Denitrification water treatment system |
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| CN101508484A true CN101508484A (en) | 2009-08-19 |
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| CNA2009100811000A Pending CN101508484A (en) | 2009-04-02 | 2009-04-02 | Denitrification water treatment system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671409A (en) * | 2014-12-31 | 2015-06-03 | 浙江至美环境科技有限公司 | Method for treating sewage by using biological fluidized bed |
| CN105565476A (en) * | 2016-01-29 | 2016-05-11 | 太仓东能环保设备有限公司 | Packing mechanism for sewage treatment |
| CN105600920A (en) * | 2015-12-17 | 2016-05-25 | 宜兴市东方水设备有限公司 | Marine domestic sewage biochemical tank |
| CN106277312A (en) * | 2015-05-15 | 2017-01-04 | 清华大学 | A kind of municipal sewage nitrogen rejection facility and application thereof |
| CN106495307A (en) * | 2016-11-29 | 2017-03-15 | 大连凯泓科技有限公司 | A kind of waste water denitration treatment device |
| CN108862617A (en) * | 2017-08-09 | 2018-11-23 | 淮北益嘉益新材料科技有限公司 | A kind of villus stick control membrane type composite filling |
-
2009
- 2009-04-02 CN CNA2009100811000A patent/CN101508484A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671409A (en) * | 2014-12-31 | 2015-06-03 | 浙江至美环境科技有限公司 | Method for treating sewage by using biological fluidized bed |
| CN106277312A (en) * | 2015-05-15 | 2017-01-04 | 清华大学 | A kind of municipal sewage nitrogen rejection facility and application thereof |
| CN106277312B (en) * | 2015-05-15 | 2019-10-18 | 清华大学 | A kind of municipal sewage nitrogen rejection facility and its application |
| CN105600920A (en) * | 2015-12-17 | 2016-05-25 | 宜兴市东方水设备有限公司 | Marine domestic sewage biochemical tank |
| CN105565476A (en) * | 2016-01-29 | 2016-05-11 | 太仓东能环保设备有限公司 | Packing mechanism for sewage treatment |
| CN106495307A (en) * | 2016-11-29 | 2017-03-15 | 大连凯泓科技有限公司 | A kind of waste water denitration treatment device |
| CN108862617A (en) * | 2017-08-09 | 2018-11-23 | 淮北益嘉益新材料科技有限公司 | A kind of villus stick control membrane type composite filling |
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Open date: 20090819 |