CN203668111U - Integrated denitrification system for total nitrogen treatment of wastewater treatment plant - Google Patents
Integrated denitrification system for total nitrogen treatment of wastewater treatment plant Download PDFInfo
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- CN203668111U CN203668111U CN201320892551.4U CN201320892551U CN203668111U CN 203668111 U CN203668111 U CN 203668111U CN 201320892551 U CN201320892551 U CN 201320892551U CN 203668111 U CN203668111 U CN 203668111U
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- water inlet
- pipeline
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 27
- 238000004065 wastewater treatment Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 15
- 230000000630 rising effect Effects 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 10
- 229910002651 NO3 Inorganic materials 0.000 description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 7
- 238000006396 nitration reaction Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- 241001494479 Pecora Species 0.000 description 1
- 239000004159 Potassium persulphate Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Y02W10/12—
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to the field of wastewater treatment, in particular to an integrated denitrification system for total nitrogen treatment of a wastewater treatment plant. A water inlet pipe above the front side of an equipment shell is connected with a diversion mixed zone inside the equipment, the diversion mixed zone is connected with a denitrification zone through a perforation tracery wall, a water outlet pipe is arranged above the rear side of the equipment shell, the water inlet pipe and the water outlet pipe are connected in parallel on a pipeline of the original wastewater treatment system through a tee joint, an intercepting quantity control valve is arranged on the original wastewater treatment pipeline, a carbon source dosing device is further arranged outside the equipment, and a filler is arranged inside the denitrification zone. According to the utility model, the integrated denitrification system equipment is connected in parallel on the original wastewater treatment pipeline, so that the integrated denitrification system has convenience in construction and installation and is very suitable for reform and innovation of the original sewage treatment structures, and has the advantages of short construction period and fast construction. Furthermore, the intercepting quantity control valve can completely or partly treat secondary treatment effluents, thereby having a flexible adjustment.
Description
Technical field
The utility model relates to sewage treatment area, specifically a kind of integrated denilrification system and control method for sewage work's total nitrogen processing.
Background technology
General urban wastewater treatment firm treatment process comprises equalizing tank, anaerobic pond, anoxic pond, Aerobic Pond, second pond, flocculation sedimentation tank, sterilization pool, and nitrogenous class material passes through Aerobic Pond therein, change nitrate nitrogen into by aminating reaction and nitration reaction, enter anoxic pond by return-flow system again, change nitrogen into by anti-nitration reaction and deviate from, loop.
According to " urban wastewater treatment firm pollutant emission standard " GB18918-2002, stricter to the monitoring of total nitrogen.Conventionally the control flow of total nitrogen processing is: (1) is in water outlet sampling, according to HJ636-2012 " the mensuration alkalescence alkaline potassium per-sulfate digestion ultraviolet spectrophotometry of water quality total nitrogen " chemical examination total nitrogen content; (2) data are higher, strengthen the unlatching of internal reflux pump, add proper amount of carbon source, as methyl alcohol, strengthen anoxic pond and mix dynamics; (3) data are normal, continue steady running.Above three step cycle are carried out.This scheme is lasted about 3-4 hour of cycle at every turn, needs to use import or high-precision Potassium Persulphate medicament in process, special chemical examination appliance requires pressure cooker, and chemical examination complexity is larger.In addition, after finding that total nitrogen exceeds standard, then carry out technique adjustment and mend the fold after the sheep is lost.And most of newly-built sewage works or original sewage work still face the situation that water outlet total nitrogen can not stably reaching standard or is on the verge of to exceed standard after upgrading now.
Utility model content
According to above-mentioned weak point, the purpose of this utility model is to provide a kind of easy to adjust, controls effective integrated denilrification system and control method for sewage work's total nitrogen processing.
For achieving the above object, the technical solution of the utility model is: a kind of integrated denilrification system for sewage work's total nitrogen processing, it comprises device housings, the top, front side of device housings is provided with water inlet pipe, water inlet pipe is connected with the water conservancy diversion mixing zone of device interior, water conservancy diversion mixing zone is connected with denitrification zone by perforation tracery wall, the back side top of device housings is provided with rising pipe, water inlet pipe and rising pipe are connected in parallel on by threeway on the pipeline between second pond and the advanced treatment structures of original Sewage treatment systems, original sewage disposal pipeline is provided with the control valve that dams, device external is also provided with carbon source throwing device, the pipeline that adds of carbon source throwing device is positioned near water inlet pipe, inside, denitrification zone is provided with filler.
Preferably: described both sides, water conservancy diversion mixing zone are interval with flow deflector from top to bottom.
Preferably: described perforation tracery wall below is provided with perforation.
Preferably: described carbon source throwing device comprises carbon source storage tank and is positioned at the automatic gauge pump of carbon source storage tank top.
Preferably: the water-in absolute altitude of described water inlet pipe is higher than the water outlet absolute altitude of rising pipe.
The beneficial effects of the utility model are: by integrated denilrification system equipment in parallel on original sewage disposal pipeline, construction and installation are very convenient, be highly suitable for raw waste water and process transformation and the innovation of structures, there is the duration short, the advantage of quick construction.In addition, the control valve that dams can be accomplished all or part of processing secondary treatment yielding water, has modulability flexibly.
Filler filter tank after tradition second-stage treatment, mostly is carbonization nitration denitrification filter tank, and it is mainly the small-sized set of traditional technology link high level.Consider that secondary biochemical system carried out the processing of darker degree to BOD, basic degraded is complete, and water outlet process second pond SS is also in lower level, other contamination indexs are significantly degraded substantially, and follow-up advanced treatment link is still the pollution substance for COD and SS etc., so target contaminant is appointed as nitrate nitrogen by native system, for nitrate nitrogen, technical process is set, significantly reduce investment cost, avoided duplicated project investment, improved operation rate.On the other hand, overcome after routine adjustment measure, still can not make total nitrogen content problem up to standard.
In control method, nitrate nitrogen being detected for sewage work's monitoring is conveniently means of one.The use of native system and control method has greatly strengthened the ageing of sewage work's total nitrogen processing, has not only strengthened the processing power of sewage work to total nitrogen, has reduced especially the difficulty of total nitrogen monitoring.
Integrated carbon source adds and sewage mixes link, and efficiency is high takes up an area less, and utilizes biofilm carrier high-biomass can carry out fast anti-nitration reaction.
This integration apparatus, can be supporting flexibly according to actual requirement taking group as unit.
Except anti-nitration reaction need utilize certain carbon source, there is not other organic degradeds in oxygen-starved area part, thereby self sludge output is little, and the part mud of generation can, with the processing of current penetration depth processing links, can not cause new burden to original system substantially.
Do not use filter tank structure, greatly reduced head loss, for sewage work has saved expenditure on power.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the side elevational view of the utility model water conservancy diversion mixing zone.
Fig. 3 is the sectional view of perforation tracery wall of the present utility model.
Fig. 4 is workflow diagram of the present utility model.
In figure, 1-device housings; 2-water inlet pipe; 3-rising pipe; 4-water conservancy diversion mixing zone; The 5-tracery wall of boring a hole; 6-denitrification zone; 7-threeway; 8-second pond; 9-advanced treatment structures; The 10-control valve that dams; 11-adds pipeline; 12-filler; 13-automatic gauge pump; 14-carbon source storage tank; 15-flow deflector; 16-perforation.
Embodiment
Below in conjunction with embodiment, the utility model is described further.
A kind of integrated denilrification system for sewage work's total nitrogen processing as Figure 1-3, it comprises device housings 1, the top, front side of device housings 1 is provided with water inlet pipe 2, water inlet pipe 2 is connected with the water conservancy diversion mixing zone 4 of device interior, water conservancy diversion mixing zone 4 is connected with denitrification zone 6 by perforation tracery wall 5, and perforation tracery wall 5 belows are provided with perforation 16.The back side top of device housings 1 is provided with rising pipe 3, wherein, water inlet pipe 2 and rising pipe 3 are connected in parallel on by threeway 7 on the pipeline between second pond 8 and the advanced treatment structures 9 of original Sewage treatment systems, original sewage disposal pipeline is provided with the control valve 10 that dams, device external is also provided with carbon source throwing device, carbon source throwing device can suitably be opened as required, for anti-nitration reaction provides carbon source.Carbon source throwing device comprises carbon source storage tank 14 and the automatic gauge pump 13 that is positioned at carbon source storage tank 14 tops, and wherein, the pipeline 11 that adds of carbon source throwing device is positioned near water inlet pipe 2, and 6 inside, denitrification zone are provided with filler 12.Selected filler 12 is sea filler, and its specific surface area is large, and hole is many, very suitable biofilm development, and for denitrifying bacterium provides carrier, biomass is very big.4 both sides, water conservancy diversion mixing zone are interval with flow deflector 15 from top to bottom, and sewage enters water conservancy diversion mixing zone 4 by its upper side, undertaken back and forth, turned back be mobile in water conservancy diversion mixing zone 4 by flow deflector 15, play even mixing effect.Effluent stream, to 4 foots of water conservancy diversion mixing zone, through 5 water distributions of perforation tracery wall, evenly enters denitrification zone 6.The water-in absolute altitude of water inlet pipe 2 is higher than the water outlet absolute altitude of rising pipe 3.
Control method of the present utility model is, in the 2 road junction samplings of equipment water inlet pipe, to detect nitrate nitrogen content according to HJ/T346-2007 " the mensuration ultraviolet spectrophotometry (trying) of water quality nitrate nitrogen "; When data are normal, equipment continues steady running; Higher when nitrate nitrogen content, regulate the control valve 10 that dams.
Wherein, regulate the method for calculation of the control valve that dams to be, first calculate nitrate ultimate value, nitrate ultimate value=(current operative norm total nitrogen value-daily experience ammonia nitrogen value) × nitrate nitrogen content accounts for total nitrogen content; Calculate again the open amount of the control valve that dams, the open amount=1-{ (current mensuration nitrate content-nitrate ultimate value)/current mensuration nitrate content } of the control valve that dams.Wherein, to account for the ratio of total nitrogen content be 0.75-0.90 to nitrate nitrogen content.
Principle of the present utility model is: whole denitrification zone does not have Air supply facility, is anoxic pond, take full advantage of the non-anaerobic state of second pond water outlet, and hydraulic detention time is 2 hours, is not enough to change into the multiple advantages such as anaerobic environment.Stable anaerobic environment is the bioselection of denitrifying bacterium the condition that facilitates.Denitrifying bacterium can utilize a certain amount of carbon source and electron donor to carry out anti-nitration reaction in anaerobic environment, the nitrate nitrogen in sewage is converted into nitrogen and deviates from.
Below with example explanation the beneficial effects of the utility model.
One, somewhere 600m
3the Sewage Treatment Facilities of/d, in existing facility, anoxic pond is too small, and water outlet total nitrogen content is in 15-20mg/L left and right, and its Effluent criteria requires as one-level a, and total nitrogen content requires in 15mg/L.As requested, on existing facility, add the utility model 20m
3the integrated denilrification system of volume, records former water outlet nitrate content and is 18mg/L left and right, opens 1/3rd control valves that dam, and enters integrated denilrification system of the present utility model, and the residence time is 2.5h.After 3h, sampling detects, and original system water outlet nitrate content is still 18mg/L, and integrated denilrification system water outlet nitrate content is 1mg/L, after two place's current mix, measuring total nitrogen content is 13.5mg/L, standard-required lower than total nitrogen content in 15mg/L, therefore, up to standard.
Claims (5)
1. the integrated denilrification system for sewage work's total nitrogen processing, it is characterized in that: it comprises device housings (1), the top, front side of device housings (1) is provided with water inlet pipe (2), water inlet pipe (2) is connected with the water conservancy diversion mixing zone (4) of device interior, water conservancy diversion mixing zone (4) is connected with denitrification zone (6) by perforation tracery wall (5), the back side top of device housings (1) is provided with rising pipe (3), described water inlet pipe (2) and rising pipe (3) are connected in parallel on by threeway (7) on the pipeline between second pond (8) and the advanced treatment structures (9) of original Sewage treatment systems, original sewage disposal pipeline is provided with the control valve that dams (10), device external is also provided with carbon source throwing device, the pipeline (11) that adds of carbon source throwing device is positioned near water inlet pipe (2), inside, denitrification zone (6) is provided with filler (12).
2. according to integrated denilrification system claimed in claim 1, it is characterized in that: described both sides, water conservancy diversion mixing zone (4) are interval with flow deflector (15) from top to bottom.
3. according to integrated denilrification system claimed in claim 1, it is characterized in that: described perforation tracery wall (5) below is provided with perforation (16).
4. according to integrated denilrification system claimed in claim 1, it is characterized in that: described carbon source throwing device comprises carbon source storage tank (14) and is positioned at the automatic gauge pump (13) of carbon source storage tank (14) top.
5. according to integrated denilrification system claimed in claim 1, it is characterized in that: the water-in absolute altitude of described water inlet pipe (2) is higher than the water outlet absolute altitude of rising pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892551.4U CN203668111U (en) | 2013-12-31 | 2013-12-31 | Integrated denitrification system for total nitrogen treatment of wastewater treatment plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320892551.4U CN203668111U (en) | 2013-12-31 | 2013-12-31 | Integrated denitrification system for total nitrogen treatment of wastewater treatment plant |
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| CN203668111U true CN203668111U (en) | 2014-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663689A (en) * | 2013-12-31 | 2014-03-26 | 青岛中宇环保科技有限公司 | Integrated denitrification system for treating total nitrogen in sewage treatment plant and control method |
| CN108689493A (en) * | 2018-06-21 | 2018-10-23 | 广州市华绿环保科技有限公司 | A kind of low energy consumption synchronizes nitrosation denitrification sewage and carries mark Processes and apparatus |
-
2013
- 2013-12-31 CN CN201320892551.4U patent/CN203668111U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663689A (en) * | 2013-12-31 | 2014-03-26 | 青岛中宇环保科技有限公司 | Integrated denitrification system for treating total nitrogen in sewage treatment plant and control method |
| CN103663689B (en) * | 2013-12-31 | 2014-11-19 | 青岛中宇环保科技有限公司 | Integrated denitrification system for treating total nitrogen in sewage treatment plant and control method |
| CN108689493A (en) * | 2018-06-21 | 2018-10-23 | 广州市华绿环保科技有限公司 | A kind of low energy consumption synchronizes nitrosation denitrification sewage and carries mark Processes and apparatus |
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| C14 | Grant of patent or utility model | ||
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