CN104478081B - A kind of anaerobism also flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique - Google Patents
A kind of anaerobism also flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique Download PDFInfo
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- CN104478081B CN104478081B CN201410715029.8A CN201410715029A CN104478081B CN 104478081 B CN104478081 B CN 104478081B CN 201410715029 A CN201410715029 A CN 201410715029A CN 104478081 B CN104478081 B CN 104478081B
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- pond
- anoxic
- anaerobic
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- 238000000034 method Methods 0.000 title claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010802 sludge Substances 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 239000002244 precipitate Substances 0.000 claims abstract description 4
- 230000001376 precipitating effect Effects 0.000 claims abstract description 4
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- 239000010865 sewage Substances 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 229920000037 Polyproline Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A kind of anaerobism also flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique, comprise and former water is introduced anaerobic pond, anoxic pond is entered after anaerobic pond process, Aerobic Pond is entered after anoxic pond process, current some after Aerobic Pond process is back to anoxic pond, some enters in second pond and precipitates, supernatant liquor in second pond is discharged, precipitating sludge some is discharged, some is back to pre-anoxic pond process, anaerobic pond is entered in the lump again with former water, it is characterized in that: the pre-anoxic pond of a part of introducing of shunting from the current after anaerobic pond process is mixed with second pond returned sluge the nitric nitrogen removed in mud, backflow and former water enter anaerobic pond in the lump afterwards.This technique is applicable to any sewage needing denitrogenation dephosphorizing process.Efficiently solve returned sluge to carry nitric nitrogen and destroy anaerobic environment problem that dephosphorization efficiency by using is declined, for anaerobic phosphorus release provides the organism of abundance; Decrease the volume of anoxic pond and anaerobic pond, reduce power consumption, improve dephosphorization efficiency by using.
Description
Technology neighborhood
The present invention relates to technical field of sewage, be especially a kind ofly suitable for the anaerobism of city domestic sewage process and flow Anoxic/Aerobic reinforced phosphor-removing denitrifying technique.
Background technology
There is large-area body eutrophication in China in recent years, and sewage water dephosphorization denitrification becomes study hotspot.Biological dephosphorize denitrification realizes for the polyP bacteria grown by having excess accumulation phosphorus, and more classical biological dephosphorize denitrification technique has A
2/ O technique, JHB technique, MUCT technique etc.A
2a large amount of nitric nitrogen can be carried in returned sluge in/O technique, thus destroy anaerobic pond environment reduction anaerobic phosphorus release efficiency.JHB process reflows sludge denitrification can consume the easily biodegradable organics in a part of former water, thus minimizing anaerobic phosphorus release amount affects phosphor-removing effect.
MUCT technique should be to properly settle A
2the shortcoming of/O and JHB technique, but also there are the following problems for MUCT technique:
1, returned sluge is diluted by whole anaerobic pond water outlets in anoxic pond 1, and sludge concentration reduces, thus the returned sluge denitrification time is increased, and increases anoxic pond volume;
2, returned sluge is diluted in anoxic pond 1, quantity of reflux from anoxic pond 1 to anaerobic pond is needed very large, the sludge concentration of guarantee anaerobic pond, increase power charge and anaerobic pond volume, sludge concentration simultaneously in anaerobic pond is less than anoxic pond sludge concentration, and returned sluge can not be made full use of in anaerobic pond.
Summary of the invention
Technical problem: order of the present invention is the weak point overcome in prior art, provides a kind of anaerobism and flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique.
Technical scheme: anaerobism of the present invention also flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique, comprise and former water is introduced anaerobic pond, anoxic pond is entered after anaerobic pond process, Aerobic Pond is entered after anoxic pond process, current some after Aerobic Pond process is back to anoxic pond, some enters in second pond and precipitates, supernatant liquor in second pond is discharged, precipitating sludge some is discharged, some is back to pre-anoxic pond process, anaerobic pond is entered in the lump again with former water, the pre-anoxic pond of a part of introducing of shunting from the current after anaerobic pond process is mixed with the part mud that second pond refluxes the nitric nitrogen removed in mud, backflow and former water enter anaerobic pond in the lump afterwards.
The amount of the described a part of current shunted from the current after anaerobic pond process is determined according to organic concentration in the content of nitric nitrogen in second pond returned sluge and anaerobic pond water outlet.
Beneficial effect: owing to have employed technique scheme, the present invention not only saves all advantages of MUCT technique, and the deficiency efficiently solved in MUCT technique, decreases the volume of power consumption and anoxic pond and anaerobic pond, and returned sluge be have also been obtained at anaerobic pond make full use of.Compared with prior art: tool has the following advantages:
1, save all advantages of MUCT technique: efficiently solve returned sluge and carry the problem that nitric nitrogen destroys anaerobic pond environment, and sludge denitrification does not utilize the organism (VFAs) of easily degraded in former water to provide sufficient organism for anaerobic phosphorus release;
2, MUCT technique is improved: compared with MUCT technique, all anaerobic pond water outlets are not assigned to pre-anoxic pond, pre-anoxic pond sludge concentration is greater than anoxic pond sludge concentration in MUCT technique, so the denitrification rate in this technique in pre-anoxic pond is faster than the denitrification rate in anoxic pond in MUCT technique 1, thus make the volume of the anoxic pond 1 of pre-anoxic pond volume ratio MUCT little.
3, compared with MUCT technique, all anaerobic pond water outlets are not assigned to pre-anoxic pond, pre-anoxic pond sludge concentration is greater than anoxic pond sludge concentration in MUCT technique, so pre-anoxic pond to be less than in MUCT anoxic pond to the quantity of reflux of anaerobic pond to the quantity of reflux of anaerobic pond in the present invention, decrease power consumption, improve anaerobic pond sludge concentration, effectively reduce anaerobic pond volume.
4, in the present invention, the sludge concentration of anaerobic pond, anoxic pond, Aerobic Pond is equal, makes returned sluge have also been obtained at anaerobic pond and makes full use of, improve dephosphorization efficiency by using compared with MUCT technique.
Accompanying drawing explanation
Fig. 1 is anaerobism of the present invention and flows Anoxic/Aerobic enhanced sewage phosphorous removal denitrification process FB(flow block).
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
As shown in Figure 1, anaerobism of the present invention also flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique, utilize anaerobic pond, pre-anoxic pond, anoxic pond, Aerobic Pond, second pond, former water is introduced anaerobic pond, anoxic pond is entered after anaerobic pond process, Aerobic Pond is entered after anoxic pond process, current some after Aerobic Pond process is back to anoxic pond, some enters in second pond and precipitates, supernatant liquor in second pond is discharged, precipitating sludge some is discharged, some is back to pre-anoxic pond process, the pre-anoxic pond of a part of introducing of shunting from the current after anaerobic pond process is mixed with the part mud that second pond refluxes the nitric nitrogen removed in mud, backflow and former water enter anaerobic pond in the lump afterwards.From the current after anaerobic pond process, shunting enters the amount of the current of pre-anoxic pond, determines according to organic concentration in the content of nitric nitrogen in second pond returned sluge and anaerobic pond water outlet.
Claims (1)
1. an anaerobism flow Anoxic/Aerobic reinforced phosphor-removing denitrifying technique, comprise and former water is introduced anaerobic pond, anoxic pond is entered after anaerobic pond process, Aerobic Pond is entered after anoxic pond process, current some after Aerobic Pond process is back to anoxic pond, some enters in second pond and precipitates, supernatant liquor in second pond is discharged, precipitating sludge some is discharged, some is back to pre-anoxic pond process, anaerobic pond is entered in the lump again with former water, it is characterized in that: the pre-anoxic pond of a part of introducing of shunting from the current after anaerobic pond process is mixed with second pond returned sluge the nitric nitrogen removed in mud, backflow and former water enter anaerobic pond in the lump afterwards, described from the current after anaerobic pond process shunting enter the amount of the current of pre-anoxic pond, determine according to organic concentration in the content of nitric nitrogen in second pond returned sluge and anaerobic pond water outlet.
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| CN201410715029.8A CN104478081B (en) | 2014-12-01 | 2014-12-01 | A kind of anaerobism also flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique |
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| CN201410715029.8A CN104478081B (en) | 2014-12-01 | 2014-12-01 | A kind of anaerobism also flows Anoxic/Aerobic reinforced phosphor-removing denitrifying technique |
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| CN104478081A CN104478081A (en) | 2015-04-01 |
| CN104478081B true CN104478081B (en) | 2016-03-23 |
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| CN107364969A (en) * | 2017-08-16 | 2017-11-21 | 贵州博凡环境科技有限公司 | The energy-saving sewage processing method and its device of a kind of high-efficient denitrification and dephosphorization |
| CN107746159A (en) * | 2017-11-27 | 2018-03-02 | 青岛城投娄山河水务有限公司 | A kind of New Type of Sewage Treatment System and technique |
| CN111410313A (en) * | 2020-04-07 | 2020-07-14 | 西安理工大学 | Side-flow type enhanced biological phosphorus removal process |
| CN111547846A (en) * | 2020-04-07 | 2020-08-18 | 中圣环境科技发展有限公司 | By-pass flow type biological phosphorus removal process |
| CN113233709A (en) * | 2021-05-26 | 2021-08-10 | 厦门中环水科技股份有限公司 | Non-membrane treatment method and system for domestic sewage |
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| US6555002B2 (en) * | 2000-10-06 | 2003-04-29 | Premier Wastwater International, Llc | Apparatus and method for wastewater treatment with enhanced solids reduction (ESR) |
| KR100401721B1 (en) * | 2002-06-14 | 2003-10-17 | Byung Hun Lee | Biological nutrient removal apparatus including recycle water inputted sludge denitrification tank |
| CN100412009C (en) * | 2005-09-27 | 2008-08-20 | 中国矿业大学 | High efficiency nitrification process of biological sewage treatment |
| CN100450939C (en) * | 2006-12-07 | 2009-01-14 | 浙江省环境保护科学设计研究院 | Clearance blast aeration oxidation ditch sewage treatment technology |
| CN102344222B (en) * | 2010-07-29 | 2015-02-18 | 上海市政工程设计研究总院 | Oxidation ditch process with functions of preventing and controlling activated sludge bulking |
| CN102344198B (en) * | 2011-01-27 | 2014-01-01 | 北京工业大学 | Real-time control apparatus for floated aerobic biofilm A<2>O system for treating low C/N sewage, and method thereof |
| CN102276062A (en) * | 2011-05-20 | 2011-12-14 | 中国矿业大学 | Multistage anaerobic and anoxic circulating final segment aerobic activated sludge process |
| CN102432106A (en) * | 2011-11-16 | 2012-05-02 | 北京工业大学 | A-A2O continuous flow sewage denitriding and dephosphorizing system and short-range denitriding method |
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