CN205170616U - Biological denitrogenation composite set - Google Patents
Biological denitrogenation composite set Download PDFInfo
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- CN205170616U CN205170616U CN201520910889.7U CN201520910889U CN205170616U CN 205170616 U CN205170616 U CN 205170616U CN 201520910889 U CN201520910889 U CN 201520910889U CN 205170616 U CN205170616 U CN 205170616U
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Abstract
The utility model provides a biological denitrogenation composite set, the device include that water input tank, oxygen deficiency denitrification pond, the good oxygen connected according to the preface nitrify pond, middle sedimentation tank and autotroph denitrogenation pond. The utility model discloses an effect adopts the device both can consume partly to have adverse effect's organic matter to anaerobic ammonium oxidation bacteria, gets rid of the nitrate nitrogen that autotroph denitrogenation pond produced simultaneously, improves the whole denitrogenation effect of system, and 90% -97% is brought up to from 80% -85% to total nitrogen clearance. Alleviate the follow -up 80% -95% of autotroph denitrogenation pond when the oxidation ammonia nitrogen oxygen consumption to reduce aeration intensity, reduce the influence of DO to anaerobic ammonium oxidation bacteria. Anaerobic ammonium oxidation bacteria and ammonia oxidizing bacteria's content and activity in the mud of improvement autotroph denitrogenation pond. The device's nitrogen volume is got rid of the load factor and can be reached 2.5 -10kg (m3 d), accomplishes gas -solid liquid three -phase separation simultaneously in a reactor, need not to set up independent sedimentation tank, has reduced the reactor unit.
Description
Technical field
The utility model belongs to biochemical process technical field of sewage, particularly a kind for the treatment of unit of nitrogenous organic waste water.
Background technology
Along with growing industrial or agricultural, the urban population concentrated rapidly and the appearance of the various phenomenon of Living consumption that improves constantly, a large amount of nitrogenous compounds is drained into water body environment, causes serious water body nitrate pollution.In recent years in the main contamination index of China's water surrounding, ammonia nitrogen became topmost pollutent in water body nitrate pollution, was also one of pollutent of crucial importance of water pollution.Because biochemical process has the advantage of economical and efficient, therefore biochemical process being used widely in practice.Biological denitrification method conventional at present mainly comprises aerobic nitrification/anoxic denitrification technique and anaerobic ammonia oxidation process.
Ammonium oxidation in waste water is mainly become nitrate nitrogen by nitrifier by aerobic nitrification/anoxic denitrification technique under good oxygen condition, utilizes heterotrophic denitrifying Bacteria that nitrate nitrogen is reduced into nitrogen afterwards, thus complete denitrification process under anoxic condition.But in aerobic nitrification/anoxic denitrification technique, because ammonia nitrogen is all oxidized to nitrate nitrogen by needs, therefore there is the shortcoming that energy consumption is high, need to consume carbon source in this technique.In addition for low ratio of carbon to ammonium waste water, because carbon source is not enough, the problem that nitric efficiency is low can be caused.In order to solve the deficiency of aerobic nitrification/anoxic denitrification technique, arise at the historic moment based on the denitrification of autotrophic organism technology of Anammox technology, the reaction formula of this technology is as follows:
NH
4 ++1.32NO
2 -+0.066HCO
3 -+0.13H
+→1.02N
2+0.26NO
3 -+
0.066CH
2O
0.5N
0.15+2.03H
2O
Ammonia nitrogen and nitrite nitrogen directly can be changed into nitrogen by anaerobic ammonia oxidizing bacteria by this technology under anaerobic state, have to save carbon source 100%, reduce aeration energy consumption 60% and the low advantage of sludge yield compared with aerobic nitrification/anoxic denitrification technique.But in actual applications, when in waste water, organic content is higher, the ability that anaerobic ammonia oxidizing bacteria removes nitrogen can be subject to significant suppression; Simultaneously when in waste water, concentration of suspension is higher, anaerobic ammonia oxidizing bacteria activity also can be suppressed; Also can draw from Anammox reaction formula in addition, owing to will generate nitrate in water outlet, therefore the highest theoretical clearance of Anammox technology to Determination of Total Nitrogen in Waste Water can only reach 88.7%.In other words, for high concentration nitrogen-containing waste water, there is the problem that water outlet total nitrogen concentration is difficult to qualified discharge in Anammox technology.
In sum, adopting during Anammox technical finesse for nitrogenous organic waste water at present needs the subject matter solved to comprise: how to reduce and to remove the impact on Anammox bacterial content and activity of useless Organic substance in water and suspended substance, how removing the problem that in the water outlet of Anammox treatment unit, nitrate content exceeds standard.How by improving treatment unit and processing mode, overcoming the defect of prior art, having become the problem that those skilled in the art need to study and solve.
Summary of the invention
In view of prior art above shortcomings, the purpose of this utility model is to provide a kind of biological denitrificaion combination unit, be beneficial to reduction and the useless Organic substance in water of removal and suspended substance to the impact of anaerobic ammonia oxidizing bacteria, solve the problem that in the water outlet of Anammox treatment unit, nitrate content exceeds standard.
For achieving the above object, the technical solution adopted in the utility model is to provide a kind of biological denitrificaion combination unit, wherein: this device comprise sequentially connect water tank inlet, anoxic denitrification pond, aerobic nitrification pond, intermediate sedimentation pond and denitrification of autotrophic organism pond.
The water-in of described water tank inlet and the nitrogenous organic waste water pipeline connection of required process, the water outlet of water tank inlet is communicated with by the water-in of intake pump with anoxic denitrification pond.
The water outlet in described anoxic denitrification pond is communicated with aerobic nitrification pond by aperture; Anoxic denitrification pond is provided with diving mixer, is also provided with anoxic denitrification pond built-up type on-line detector and is connected with 1PLC controller.
The water outlet in described aerobic nitrification pond is divided into two-way, leading up to aerobic nitrification pond is communicated with intermediate sedimentation pond with intermediate sedimentation pond connecting pipeline, another road is diverted through short distance nitration liquid reflux pump from aerobic nitrification pond and intermediate sedimentation pond connecting pipeline and is communicated with anoxic denitrification pond through short distance nitration liquid return line, be provided with the aerobic nitrification pond aerating apparatus be communicated with nitrated air compressor bottom aerobic nitrification pond, be also provided with aerobic nitrification pond built-up type on-line detector and be connected with 1PLC controller.
Water outlet one tunnel in described intermediate sedimentation pond is be connected with denitrification of autotrophic organism pond water-in with denitrification of autotrophic organism pond connecting pipeline by intermediate sedimentation pond, another road is be communicated with anoxic denitrification pond through residual sludge reflux pipeline by residual sludge reflux pump, is communicated with excess sludge discharge pipe simultaneously.
Gas discharge outlet is provided with on top, described denitrification of autotrophic organism pond, middle part is provided with granule sludge, bottom is provided with denitrification tank aerating apparatus, side is also provided with denitrification of autotrophic organism pond built-up type on-line detector, inside, denitrification of autotrophic organism pond is provided with triphase separator overflow weir, be communicated with anoxic denitrification pond through nitrification liquid return line by triphase separator overflow weir, described denitrification of autotrophic organism pond built-up type on-line detector is connected with 2PLC controller.
Effect of the present utility model is: (1) is in anoxic denitrification pond, under denitrifying bacteria effect, the nitric nitrogen of useless Organic substance in water and aerobic nitrification pond and the generation of denitrification of autotrophic organism pond is converted into nitrogen, both a part has disadvantageous effect organism to anaerobic ammonia oxidizing bacteria can have been consumed, remove the nitric nitrogen that denitrification of autotrophic organism pond produces simultaneously, the overall denitrification effect of raising system, nitrogen removal rate brings up to 90%-97% from 80%-85%%.
(2) aerobic nitrification pond Main Function removes organism remaining in waste water, reduces organism to the impact of anaerobic ammonia oxidizing bacteria activity, anaerobic ammonia oxidizing bacteria relative reactivity can be improved 50%-400%.Simultaneously by controlling the DO concentration in reaction tank, in aerobic nitrification being intake, the mineralized nitrogen of 40%-50% is nitrite, alleviate the oxygen-consumption of the 80%-95% of follow-up denitrification of autotrophic organism pond when being oxidized ammonia nitrogen, thus reduce aeration intensity, reduce DO to the impact of anaerobic ammonia oxidizing bacteria.
(3) Main Function in intermediate sedimentation pond carries out solid-liquid separation, removes the suspended substance in the water outlet of aerobic nitrification pond by solid-liquid separation, thus improve content and the activity of anaerobic ammonia oxidizing bacteria and ammonia oxidation bacteria in the mud of denitrification of autotrophic organism pond.
(4) Main Function in denitrification of autotrophic organism pond is under micro-oxygen conditions, the synergy of ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria is utilized to be nitrogen and nitrate nitrogen by mineralized nitrogen, due to the reduction of organic substance influence, the nitrogen volume elimination capacity rate of this device can reach 2.5-10kg/ (m
3d), in a reactor, completing gas-solid-liquid three phase separation simultaneously, without the need to arranging independent settling tank, decreasing reactor unit.
(5) PLC by being connected with built-up type on-line detector, real-time monitoring is carried out to reflux pump or air compressor, optimize aeration rate and quantity of reflux, guarantee the optimized running of whole system, ensure that system effluent quality reaches " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level B standard.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
In figure:
1, inlet chest 11, intake pump 12, inlet chest built-up type on-line detector 2, anoxic denitrification pond 21, the water outlet of anoxic denitrification pond enters the aperture 22 in aerobic nitrification pond, diving mixer 23, anoxic denitrification built-up type on-line detector 24, 1PLC controller 3, aerobic nitrification pond 31, aerobic nitrification pond and intermediate sedimentation pond connecting pipeline 32, short distance nitration liquid return line 33, short distance nitration liquid return line valve 34, short distance nitration liquid reflux pump 35, aerobic nitrification pond aerating apparatus 36, nitrated air compressor 37, gas meter 38, aerobic nitrification pond built-up type on-line detector 4, intermediate sedimentation pond 41, excess sludge discharge valve 42, excess sludge discharge pipe 43, residual sludge reflux pipeline 44, residual sludge reflux pipe valve 45, residual sludge reflux pump 46, intermediate sedimentation pond overflow weir 47, intermediate sedimentation pond and denitrification of autotrophic organism pond connecting pipeline 5, denitrification of autotrophic organism pond 51, denitrogenation air compressor 52, denitrification tank aerating apparatus 53, water-distributing device 54, nitrification liquid return line 55, triphase separator 56, gas discharge outlet 57, triphase separator overflow weir 58, nitrification liquid reflux pump 59, nitrification liquid return line valve 510, gas meter 511, granule sludge 512, denitrification of autotrophic organism pond built-up type on-line detector 513, 2PLC controller 514, dividing plate
Embodiment
By reference to the accompanying drawings biological denitrificaion combination unit structure of the present utility model is illustrated.
As shown in Figure 1, the structure of combination biological denitrification apparatus of the present utility model is, this device comprise sequentially connect water tank inlet 1, anoxic denitrification pond 2, aerobic nitrification pond 3, intermediate sedimentation pond 4 and denitrification of autotrophic organism pond 5.
The water-in of described water tank inlet 1 and the nitrogenous organic waste water pipeline connection of required process, the water outlet of water tank inlet 1 is communicated with the water-in in anoxic denitrification pond 2 by intake pump 11.
The water outlet in described anoxic denitrification pond 2 is communicated with aerobic nitrification pond 3 by aperture 21; Anoxic denitrification pond 2 is provided with diving mixer 22, is also provided with anoxic denitrification pond built-up type on-line detector 23 and is connected with 1PLC controller 24.
The water outlet in described aerobic nitrification pond 3 is divided into two-way, leading up to aerobic nitrification pond is communicated with intermediate sedimentation pond 4 with intermediate sedimentation pond connecting pipeline 31, another road is diverted through short distance nitration liquid reflux pump 34 from aerobic nitrification pond and intermediate sedimentation pond connecting pipeline 31 and is communicated with anoxic denitrification pond 2 through short distance nitration liquid return line 32, be provided with the aerobic nitrification pond aerating apparatus 35 be communicated with nitrated air compressor 36 bottom aerobic nitrification pond 3, be also provided with aerobic nitrification pond built-up type on-line detector 38 and be connected with 1PLC controller 24.
Water outlet one tunnel in described intermediate sedimentation pond 4 is be connected with denitrification of autotrophic organism pond 5 water-in with denitrification of autotrophic organism pond connecting pipeline 47 by intermediate sedimentation pond, another road, for be communicated with anoxic denitrification pond 2 through residual sludge reflux pipeline 43 by residual sludge reflux pump 45, is communicated with excess sludge discharge pipe 42 simultaneously.
Gas discharge outlet 56 is provided with on top, described denitrification of autotrophic organism pond 5, middle part is provided with granule sludge 511, bottom is provided with denitrification tank aerating apparatus 52, side is also provided with denitrification of autotrophic organism pond built-up type on-line detector 512, inside, denitrification of autotrophic organism pond 5 is provided with triphase separator overflow weir 57, be communicated with anoxic denitrification pond 2 through nitrification liquid return line 54 by triphase separator overflow weir 57, described denitrification of autotrophic organism pond built-up type on-line detector 512 is connected with 2PLC controller 513.
Described anoxic denitrification pond 2 is suspension type or attached type, and be provided with anoxic denitrification pond built-up type on-line detector 23, anoxic denitrification pond built-up type on-line detector 23 comprises COD electrode, pH value electrode, dissolved oxygen electrode, ammonia nitrogen electrode and nitric nitrogen electrode, and is connected with 1PLC controller 24.Described aerobic nitrification pond 3 is suspension type or attached type, and be provided with aerobic nitrification pond built-up type on-line detector 38, aerobic nitrification pond built-up type on-line detector 38 comprises COD electrode, pH value electrode, dissolved oxygen electrode, ammonia nitrogen electrode and nitric nitrogen electrode, and is connected with 1PLC controller 24.
Described intermediate sedimentation pond 4 is one of flat flow, vertical-flow or radial-flow, and the top in described intermediate sedimentation pond 4 is provided with intermediate sedimentation pond overflow weir 46.
Described denitrification of autotrophic organism pond 5 is reaction and precipitation functions device, and denitrification of autotrophic organism pond 5 comprises reaction zone and three-phase separation area, and the aspect ratio of reaction zone is (5-10): 1, reaction zone granularity=3mm-8mm; Water-distributing device 53 and denitrification tank aerating apparatus 52 is provided with bottom this pond; Triphase separator 56 is provided with gas discharge outlet 56 and triphase separator overflow weir 57, part water outlet is connected with anoxic denitrification pond 2 by pipeline, denitrification of autotrophic organism pond built-up type on-line detector 512 is provided with in this pond, this built-up type on-line detector comprises COD electrode, pH value electrode, dissolved oxygen electrode, ammonia nitrogen electrode and nitric nitrogen electrode, and is connected with 2PLC controller 513.
Described sequentially connect water tank inlet 1, anoxic denitrification pond 2, aerobic nitrification pond 3, intermediate sedimentation pond 4 and denitrification of autotrophic organism pond 5 connecting pipeline are equipped with valve, on the airline connected, be equipped with gas meter simultaneously; The air compressor of reflux pump used and band converter plant is equipped with in anoxic denitrification pond 2, aerobic nitrification pond 3 and denitrification of autotrophic organism pond 5.
High ammonia nitrogen organic waste water after the grid of combination biological denitrification apparatus of the present utility model, sand setting and precipitation process cell processing flows into water tank inlet 1, and the ammonia nitrogen concentration of waste water is 700-800mg/L, COD concentration is 400-500mg/L, pH=7-8.
The step of the process organic nitrogen-containing waste water of combination biological denitrification apparatus of the present utility model is as follows:
(1) anoxic denitrification pond heterotrophism denitrogenation
Nitrogenous organic waste water from water tank inlet 1 enters anoxic denitrification pond 2 by intake pump 11, short distance nitration liquid enters anoxic denitrification pond (2) from aerobic nitrification pond 3 by short distance nitration liquid reflux pump 34, and short distance nitration liquid reflux ratio is 20%-30%.Nitrification liquid from denitrification of autotrophic organism pond 5 enters anoxic denitrification pond 2 by nitrification liquid reflux pump 58, and mixed liquid recycle ratio is 200%-300%.The mud precipitated in intermediate sedimentation pond 4 is back to anoxic denitrification pond 2 by residual sludge reflux pump 45 through residual sludge reflux pipeline 43, and return sludge ratio is 10%-50%.The hydraulic detention time of waste water in anoxic denitrification pond 2 is 2h-5h, and sludge concentration is 2000mg/L-4000mg/L.Under the effect of denitrifying bacterium, the COD in former water about can remove 400mg/L, and nitrate nitrogen and nitrite nitrogen can remove 60mg/L-70mg/L and 120mg/L-140mg/L respectively.
(2) aerobic nitrification pond removes remaining carbon and short distance nitration
The aperture 21 that anoxic denitrification pond 2 water outlet enters aerobic nitrification pond through the water outlet of anoxic denitrification pond enters aerobic nitrification pond 3.In this stage, according to the monitoring result of aerobic nitrification pond built-up type on-line detector 38, control nitrated air compressor 36 by 1PLC controller 24 and regulate aeration rate, maintain the DO=1mg/L-2mg/L in aerobic nitrification pond 3, HRT=6h-10h.In aerobic nitrification pond 3, sludge concentration is 2000mg/L-4000mg/L, heterotrophic bacterium is utilized to reduce COD concentration in waste water further in low DO condition, utilize the concentration of free ammonia higher in waste water the avidity to oxygen is less than the feature of ammonia oxidizing bacteria to the restraining effect of NOB and NOB simultaneously, is nitrite nitrogen by part mineralized nitrogen.After aerobic nitrification pond 3 processes, the COD in former water about can remove 40mg/L, about has 400mg/L mineralized nitrogen to be nitrite nitrogen in former water.Short distance nitration liquid enters anoxic denitrification pond 2 from aerobic nitrification pond 3 by short distance nitration liquid reflux pump 34, and short distance nitration liquid reflux ratio is 20%-30%.
(3) intermediate sedimentation pond solid-liquid separation
A part of mixed solution after aerobic nitrification pond 3 processes enters intermediate sedimentation pond 4 through aerobic nitrification pond and intermediate sedimentation pond connecting pipeline 31.Mixed solution is after precipitation process, in supernatant liquor, concentration of suspension is less than 20mg/L, supernatant liquor enters denitrification of autotrophic organism pond 5 through nitrification liquid return line 54 after overflow weir 46 collection in intermediate sedimentation pond converges, the mud part precipitated is by the outer row of excess sludge discharge pipe 42, another part is back to anoxic denitrification pond 2 through residual sludge reflux pump 45, return sludge ratio 10%-50%.
(4) denitrification of autotrophic organism pond denitrogenation
Entered the water-distributing device 53 in denitrification of autotrophic organism pond 5 by intermediate sedimentation pond and denitrification of autotrophic organism pond connecting pipeline 47 from the supernatant liquor in intermediate sedimentation pond 4.In this stage, according to the monitoring result of denitrification of autotrophic organism pond built-up type on-line detector 512, control denitrogenation air compressor 41 by 2PLC controller 513 and regulate aeration rate, maintain the DO=0.1mg/L-0.5mg/L in denitrification of autotrophic organism pond 5, HRT=1.5h-6h, now the nitrogen volume elimination capacity rate of this device can reach 2.5-10kg/ (m
3d).In denitrification of autotrophic organism pond 5, the diameter of granule sludge 511 is between 3mm-8mm, the ammonia oxidation bacteria on its surface utilizes the concentration of free ammonia higher in waste water, and to the restraining effect of NOB and NOB, the avidity to oxygen is less than the feature of ammonia oxidizing bacteria, and ammonia nitrogen is all converted into nitrite nitrogen.Ammonia nitrogen and nitrite nitrogen are generated nitrogen and nitrate nitrogen by the anaerobic ammonia oxidizing bacteria being present in granule sludge 511 inside afterwards under anaerobic state.Three-phase mixture (nitrogen, waste water, mud) after reaction is after triphase separator 55 is separated, the nitrogen produced discharges triphase separator 44 through gas discharge outlet 56, supernatant liquor converges rear portion through triphase separator overflow weir 57 collection and is back to anoxic denitrification pond 2 by nitrification liquid reflux pump 58, mixed liquid recycle ratio is 200%-300%, and denitrification of autotrophic organism pond 5 is discharged in all the other water outlets.
Operation result shows, for the high ammonia nitrogen organic waste water of ammonia nitrogen concentration to be 700-800mg/L, COD concentration be 400-500mg/L, pH=7-8, after the process of this device, water outlet ammonia nitrogen concentration < 5mg/L, total nitrogen concentration < 20mg/L, COD concentration < 50mg/L, reaches " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level B standard.
Claims (6)
1. combine a biological denitrification apparatus, it is characterized in that: this device comprise sequentially connect water tank inlet (1), anoxic denitrification pond (2), aerobic nitrification pond (3), intermediate sedimentation pond (4) and denitrification of autotrophic organism pond (5);
The water-in of described water tank inlet (1) and the nitrogenous organic waste water pipeline connection of required process, the water outlet of water tank inlet (1) is communicated with the water-in of anoxic denitrification pond (2) by intake pump (11);
The water outlet of described anoxic denitrification pond (2) is communicated with aerobic nitrification pond (3) by aperture (21); Anoxic denitrification pond (2) is provided with diving mixer (22), is also provided with anoxic denitrification pond built-up type on-line detector (23) and is connected with 1PLC controller (24);
The water outlet of described aerobic nitrification pond (3) is divided into two-way, leading up to aerobic nitrification pond is communicated with intermediate sedimentation pond (4) with intermediate sedimentation pond connecting pipeline (31), another road is diverted through short distance nitration liquid reflux pump (34) from aerobic nitrification pond and intermediate sedimentation pond connecting pipeline (31) and is communicated with anoxic denitrification pond (2) through short distance nitration liquid return line (32), bottom, aerobic nitrification pond (3) is provided with aerobic nitrification pond aerating apparatus (35) be communicated with nitrated air compressor (36), also be provided with aerobic nitrification pond built-up type on-line detector (38) and be connected with 1PLC controller (24),
Water outlet one tunnel of described intermediate sedimentation pond (4) is be connected with denitrification of autotrophic organism pond (5) water-in with denitrification of autotrophic organism pond connecting pipeline (47) by intermediate sedimentation pond, another road is be communicated with anoxic denitrification pond (2) through residual sludge reflux pipeline (43) by residual sludge reflux pump (45), is communicated with excess sludge discharge pipe (42) simultaneously;
Gas discharge outlet (56) is provided with on described denitrification of autotrophic organism pond (5) top, middle part is provided with granule sludge (511), bottom is provided with denitrification tank aerating apparatus (52), side is also provided with denitrification of autotrophic organism pond built-up type on-line detector (512), denitrification of autotrophic organism pond (5) inside is provided with triphase separator overflow weir (57), be communicated with anoxic denitrification pond (2) through nitrification liquid return line (54) by triphase separator overflow weir (57), described denitrification of autotrophic organism pond built-up type on-line detector (512) is connected with 2PLC controller (513).
2. combine biological denitrification apparatus according to claim 1, it is characterized in that: described anoxic denitrification pond (2) is suspension type or attached type, and be provided with anoxic denitrification pond built-up type on-line detector (23), anoxic denitrification pond built-up type on-line detector (23) comprises COD electrode, pH value electrode, dissolved oxygen electrode, ammonia nitrogen electrode and nitric nitrogen electrode, and is connected with 1PLC controller (24).
3. combine biological denitrification apparatus according to claim 1, it is characterized in that: described aerobic nitrification pond (3) is suspension type or attached type, and be provided with aerobic nitrification pond built-up type on-line detector (38), aerobic nitrification pond built-up type on-line detector (38) comprises COD electrode, pH value electrode, dissolved oxygen electrode, ammonia nitrogen electrode and nitric nitrogen electrode, and is connected with 1PLC controller (24).
4. combine biological denitrification apparatus according to claim 1, it is characterized in that: described intermediate sedimentation pond (4) is flat flow, one of vertical-flow or radial-flow, and the top of described intermediate sedimentation pond (4) is provided with intermediate sedimentation pond overflow weir (46).
5. combine biological denitrification apparatus according to claim 1, it is characterized in that: described denitrification of autotrophic organism pond (5) is reaction and precipitation functions device, denitrification of autotrophic organism pond (5) comprises reaction zone and three-phase separation area, the aspect ratio of reaction zone is (5-10): 1, reaction zone granularity=3mm-8mm; Water-distributing device (53) and denitrification tank aerating apparatus (52) is provided with bottom this pond; Triphase separator (55) is provided with gas discharge outlet (56) and triphase separator overflow weir (57), part water outlet is connected with anoxic denitrification pond (2) by pipeline, denitrification of autotrophic organism pond built-up type on-line detector (512) is provided with in this pond, this built-up type on-line detector comprises COD electrode, pH value electrode, dissolved oxygen electrode, ammonia nitrogen electrode and nitric nitrogen electrode, and is connected with 2PLC controller (513).
6. combine biological denitrification apparatus according to claim 1, it is characterized in that: described sequentially connect water tank inlet (1), anoxic denitrification pond (2), aerobic nitrification pond (3), intermediate sedimentation pond (4) and denitrification of autotrophic organism pond (5) connecting pipeline are equipped with valve, on the airline connected, be equipped with gas meter simultaneously; The air compressor of reflux pump used and band converter plant is equipped with in anoxic denitrification pond (2), aerobic nitrification pond (3) and denitrification of autotrophic organism pond (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910889.7U CN205170616U (en) | 2015-11-16 | 2015-11-16 | Biological denitrogenation composite set |
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| CN201520910889.7U CN205170616U (en) | 2015-11-16 | 2015-11-16 | Biological denitrogenation composite set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254134A (en) * | 2015-11-16 | 2016-01-20 | 天津城建大学 | Biological nitrogen removal combination device |
| CN106587349A (en) * | 2016-11-11 | 2017-04-26 | 北京交通大学 | Treating method and apparatus for corn deep-processing wastewater with high contents of ammonia, nitrogen and organic matters |
| CN116573817A (en) * | 2023-07-13 | 2023-08-11 | 四川省建筑科学研究院有限公司 | Integrated mixed biological treatment system and method for dispersed sewage |
-
2015
- 2015-11-16 CN CN201520910889.7U patent/CN205170616U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254134A (en) * | 2015-11-16 | 2016-01-20 | 天津城建大学 | Biological nitrogen removal combination device |
| CN106587349A (en) * | 2016-11-11 | 2017-04-26 | 北京交通大学 | Treating method and apparatus for corn deep-processing wastewater with high contents of ammonia, nitrogen and organic matters |
| CN106587349B (en) * | 2016-11-11 | 2020-04-28 | 北京交通大学 | Treatment device for high-ammonia-nitrogen high-organic-matter corn deep processing wastewater |
| CN116573817A (en) * | 2023-07-13 | 2023-08-11 | 四川省建筑科学研究院有限公司 | Integrated mixed biological treatment system and method for dispersed sewage |
| CN116573817B (en) * | 2023-07-13 | 2023-09-26 | 四川省建筑科学研究院有限公司 | Integrated mixed biological treatment system and method for dispersed sewage |
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Granted publication date: 20160420 Effective date of abandoning: 20170728 |
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