CN106186321A - A kind of integrated energy-saving nitrogen rejection facility and method - Google Patents
A kind of integrated energy-saving nitrogen rejection facility and method Download PDFInfo
- Publication number
- CN106186321A CN106186321A CN201610700295.2A CN201610700295A CN106186321A CN 106186321 A CN106186321 A CN 106186321A CN 201610700295 A CN201610700295 A CN 201610700295A CN 106186321 A CN106186321 A CN 106186321A
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- rotating disk
- water
- aerobe
- solid packing
- sedimentation tank
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- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/20—Prevention of biofouling
Abstract
The invention discloses a kind of integrated energy-saving nitrogen rejection facility processing sanitary sewage and method, it includes water distributor, aerobe rotating disk, rotating disk brush, double settling zone, solid packing, permeable dividing plate, rotating disk brush and wheel controller.Intake pump is connected with water distributor, controls flow of inlet water；Water distributor is connected with the aerobe rotating disk with revolution speed control device, water distribution in the middle part of rotating disk；Aerobe rotating disk is fixed on internal funnel-form sedimentation tank body top, and internal precipitate cell body is connected with outside sedimentation tank body by placing the permeable dividing plate of cellular volcanic rock solid packing, and internal precipitate pond constitutes double settling zone with outside sedimentation tank；Volcanic rock solid packing is placed on permeable dividing plate top, and this part is anaerobic zone；Mud discharging mouth is being arranged at the bottom of outside sedimentation tank with sludge reflux mouth, and refluxing opening is furnished with sludge reflux pump in order to control sludge reflux amount.Motility high energy consumption of the present invention is low, meets various secondary effluent from sewage treatment plant, can control the biomembranous growth of rotating disk.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind of denitrogenation being suitable in municipal sewage plant secondary effluent and running
Device and operation method thereof.
Background technology
China's surface water ammonia and nitrogen pollution is serious.According to statistics, within 2012, national wastewater emission amount is 684.6 hundred million tons, chemistry
Oxygen demand total emission volumn is 2423.7 ten thousand tons, decline 3.05% compared with last year；Ammonia nitrogen total emission volumn is 253.6 ten thousand tons.Earth's surface
Water ammonia nitrogen mean annual concentration, more than III class water standard, becomes the key factor affecting quality of water environment.A large amount of discharges of ammonia nitrogen
Not only cause the phenomenon such as water environment pollution and body eutrophication and water body generation red tide, and in Industrial Wastewater Treatment with return
With engineering causes microbial reproduction in watering equipment, form biofouling, blocking pipeline and watering equipment, affect heat exchange.Mesh
Before, Chinese scholars is concentrated mainly on the novel denitrogenation technology of exploitation to the research of nitric wastewater, to reach more preferably to process ammonia nitrogen
Purpose and the requirement of environmental protection.
At present, the conventional art (nitration denitrification) of the wide variety of domestic sewage denitrifying of wastewater treatment in China factory faces
The problems such as technological process is long, and additional carbon is many, and aeration rate is big, and energy consumption is high.Utilize novel bio-denitrification technology (nitrosation-detest
Anaerobic ammonium oxidation) part the problems referred to above can be solved, but major part reaction unit still needs nitrosation part is carried out aeration, nothing
Process energy consumption is preferably minimized by method.In addition, it is necessary to the traditional biological denitrification process of high-carbon nitrogen ratio sewage is dirty with needs low ratio of carbon to ammonium
The Process of Biological Nitrogen Removal of water does not has integrated application at present, and the water quality type between two kinds of technological requirement water quality cannot
Process.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of integrated energy-saving biological denitrificaion dress that need not imposed aeration
Put and method, can according to influent quality condition free be transformed in traditional biological denitrification process and Process of Biological Nitrogen Removal it
Between, denitrification process energy consumption can be made to reduce to greatest extent, thus provide a kind of equipment and side for solving domestic sewage denitrifying problem
Method.
A kind of nitrogen rejection facility provided by the present invention, be for secondary effluent from sewage treatment plant be water inlet run dress continuously
Putting, be provided simultaneously with the function of second pond, equipment of saving to greatest extent takes up an area.It is characterized in that: include joining with aerobe rotating disk
The water distributor led to, the rotating disk brush that lifting can be controlled, internal funnel-form sedimentation tank, outside cellular volcanic rock solid packing, water outlet
Overflow launder, sludge reflux pump, entering water electromagnetic valve and rotary speed control device.Intake pump is connected with water distributor, controls feed water flow
Amount；Water distributor is connected with the aerobe rotating disk with revolution speed control device, water distribution in the middle part of rotating disk；Aerobe rotating disk is fixed
On internal funnel-form sedimentation tank body top, in order to adhere to the aerobic nitrification bacterium (nitrococcus and nitrifier) removing ammonia nitrogen and to go
Except the aerobic heterotrophic bacteria of COD, this part is device aerobic zone；Internal precipitate cell body is by placing cellular volcanic rock solid packing
Permeable dividing plate be connected with outside sedimentation tank body, internal precipitate pond constitutes double settling zones of device with outside sedimentation tank；Porous
Shape volcanic rock solid packing is placed on permeable dividing plate top, in order to adhere to removal nitrate nitrogen and the anaerobic denitrification of nitrite nitrogen
Bacterium (anaerobic ammonia oxidizing bacteria and denitrifying bacterium), this part is device anaerobic zone；Effluent overflow weir water is in outside cell body top, overflow
Highly less than water distributor height；Mud discharging mouth is being arranged at the bottom of outside sedimentation tank with sludge reflux mouth, and refluxing opening is furnished with sludge reflux pump
In order to control sludge reflux amount.
Wherein, water distributor has the function supporting aerobe rotating disk at water distribution uniformity simultaneously.
Wherein, biological rotating disk top is provided with the rotating disk brush that can lift, rotating disk brush controller regulate height, in order to
Periodically remove the aging biomembrane of rotating disk outer surface and the microbial biomass of overgrowth.
Wherein, biological rotating disk is grid like surface, it is provided that can brush the aging life of rotating disk while more bigger serface
Appropriate microbial biomass is retained, it is simple to biofilm the most again during thing film.
Wherein, reactor has inside and outside two precipitation zone, possesses sedimentation tank function.
Wherein, cellular volcanic rock solid packing particle diameter needs relatively big (12mm≤d≤15mm), otherwise affects water head-drop high
Degree.
Wherein, permeable dividing plate is fixed on outside cell body, and permeable hole should be less than solid packing particle diameter.
The operation method of integrated energy-saving nitrogen rejection facility, it is characterised in that comprise the following steps:
1) secondary effluent (muddy water mixed solution) is entered water distributor (2) by water inlet pipe through intake pump (1) and is passed through aerobe and turns
Dish (3), aerobe rotating disk regulates rotating speed by wheel controller (13), aerobe rotary speed preferably control 2.0～
4.0r/min, controls aerobic zone hydraulic detention time HRTAerobic1.0～2.0h；
2) the most double settling zone of muddy water mixed solution (5), after mud-water separation, sludge settling enters discharge pipeline (8) or dirt
Mud return duct (9), returned sludge is back to the biochemistry pool of municipal sewage plant, and return sludge ratio is 20%～50%；
3) sewage is upper is passed through cellular volcanic rock solid packing through permeable dividing plate (7), controls anaerobic zone hydraulic retention
Time HRTAnaerobism4.0～6.0h；
4) sewage enters clean water overflow district, upper strata afterwards by cellular volcanic rock solid packing (6), keeps off through water outlet overflow
Plate (10) enters outlet pipe (11)；
Periodically removing unnecessary and aging microorganism, COD value controls 10～20d/ time under conditions of being more than 50mg/L, COD
Value is less than controlling in the case of 50mg/L 20～30d/ time.
Domestic sewage denitrifying device and method of the present invention, technological flexibility is high, and operation energy consumption is low, can meet various sewage
Treatment plant's secondary effluent, is provided simultaneously with biological rotating disk brush, can control the biomembranous growth of rotating disk, at the denitrogenation of sanitary sewage
Reason provides that a kind of suitability is strong, the new way of low cost.
Accompanying drawing explanation
The side view of Fig. 1-present invention.
In figure: 1-intake pump；2-water distributor；3-aerobe rotating disk；4-rotating disk brush；The double settling zone of 5-；6-cellular fire
Mountain rock solid packing；The permeable dividing plate of 7-；8-discharge pipeline；9-mud return line；10-water outlet overflow baffle；11-outlet pipe；12-turns
Disc brush controller；13-wheel controller.
Specific embodiments
Below in conjunction with the accompanying drawings the present invention is described in further detail.
With reference to figure, integrated energy-saving nitrogen rejection facility of the present invention includes water distributor 2, aerobe rotating disk 3, rotating disk brush 4, double heavy
Shallow lake district 5, solid packing 6, permeable dividing plate 7, rotating disk brush controller 12, wheel controller 13.
1) secondary effluent (muddy water mixed solution) is entered water distributor (2) by water inlet pipe through intake pump (1) and is passed through aerobe and turns
Dish (3), aerobe rotating disk regulates rotating speed by wheel controller (13), remains COD and adhere on aerobe rotating disk in water
Aerobic heterotrophic bacteria contact rotating disk rotate simultaneously increase dissolved oxygen content consume COD, ammonia nitrogen and aerobe in water simultaneously
The aerobic nitrification bacterium contact of attachment on rotating disk, is partially converted into nitrite nitrogen by ammonia nitrogen, controls aerobic biological rotating disk rotating speed and preferably control
2.0～4.0r/min, control aerobic zone hydraulic detention time HRTAerobic1.0～2.0h；
2) the most double settling zone of muddy water mixed solution (5), after mud-water separation, sludge settling enters discharge pipeline (8) or dirt
Mud return duct (9), returned sludge is back to the biochemistry pool of municipal sewage plant, it is ensured that have enough Biomass, mud in biochemistry pool
Reflux ratio is 20%～50%；
3) sewage upstream is passed through solid packing (6) through permeable dividing plate (7), and solid packing part is anoxia anaerobic zone,
Being attached with denitrifying bacterium and anaerobic ammonia oxidizing bacteria on filler, ammonia nitrogen remaining in sewage and sub-nitrogen occur in the case of having COD
, in the case of there is no COD, there is anaerobic ammonium oxidation process denitrogenation, control anaerobic zone hydraulic detention time in denitrification process denitrogenation
HRTAnaerobism4.0～6.0h；
4) sewage enters clean water overflow district, upper strata afterwards by cellular volcanic rock solid packing (6), keeps off through water outlet overflow
Plate (10) enters outlet pipe (11)；
Aerobe rotating disk (3) Biomass is controlled by rotating disk brush (4) and wheel controller (12), periodically remove unnecessary and
Aging microorganism, COD value is more than controlling under conditions of 50mg/L 10～20d/ time, and COD value is less than control in the case of 50mg/L
Make 20～30d/ time.
When actual installation is run, first determine aerobic zone and anaerobism according to the size needing water quality treatment various index meansigma methods
The volume ratio in district, so that it is determined that porous volcanic rock solid packing height, controls filler diameter simultaneously and is not less than 12mm, to such an extent as to
Affect water head-drop height.Solid packing can be selected for cellular volcanic rock or color density similar (1.2～1.5g/cm3) many
Poroid filler, need to ensure that the while that chance water being non-rising, microorganism can be adhered to.
Biological rotating disk 3 is spaced 5mm and is uniformly fixed on water distributor 2, and integral installation is above cell body internal precipitate pond.This
Sample can ensure that biological rotating disk can have contacting of half card with air and liquid level, allows microorganism on rotating disk also have with air
The contact of half rotating disk area, reaches the purpose of " aeration ".
The rotating speed of biological rotating disk can be adjusted by wheel controller 13 according to actual influent load during operation.
With certain municipal sewage plant secondary effluent for processing object, during test, influent quality is as follows:
Experimental condition: device aerobic zone and anaerobic zone volume ratio are 1:4, flow of inlet water be 5L/h, HRT be 6.3h, mud
Reflux ratio is 20%, and aerobe rotary speed is 3.0r min-1Left and right, the DO of aerobic zone 2.5～4.0mg/L, anaerobic zone
DO 0.4～0.5mg/L, aerobic zone hydraulic detention time HRTAerobic=1.5h, anaerobic zone hydraulic detention time HRTAnaerobism=4.8h.
Result of the test: after system stability, water outlet average COD, NH4 +-N、NO2 --N、NO3 --N, TN, TP etc. are respectively
25.26,0.88,0.05,9.36,10.29, each effluent index all stably reaches one-level A standard.
The foregoing is only the specific embodiment of the present invention, not limit the scope of the present invention, all according to the present invention
The equivalence that structure, feature and principle described in scope are done changes or modifies, and all should be included in the scope of the invention.
Claims (5)
1. integrated energy-saving nitrogen rejection facility, it is characterised in that: include the water distributor with aerobe rotating disk UNICOM, lifting can be controlled
Rotating disk brush, internal funnel-form sedimentation tank, outside cellular volcanic rock solid packing, water outlet overflow launder, sludge reflux pump and turn
Dish revolution speed control device；Intake pump is connected with water distributor, controls flow of inlet water；Aerobic with revolution speed control device of water distributor
Biological rotating disk is connected, water distribution in the middle part of rotating disk；Aerobe rotating disk is fixed on internal funnel-form sedimentation tank body top, this part
For aerobic zone；Internal precipitate cell body is by placing the permeable dividing plate of cellular volcanic rock solid packing and outside sedimentation tank body phase
Even, internal precipitate pond constitutes double settling zone with outside sedimentation tank；Cellular volcanic rock solid packing is placed on permeable dividing plate
Portion, this part is anaerobic zone；Effluent overflow weir water is less than water distributor height in outside cell body top, overflow height；Mud discharging mouth with
Sludge reflux mouth is being arranged at the bottom of outside sedimentation tank, and refluxing opening is furnished with sludge reflux pump in order to control sludge reflux amount.
The most according to claim 1, device, wherein, biological rotating disk is grid like surface.
The most according to claim 1, device, wherein, cellular volcanic rock solid packing particle diameter d is 12mm≤d≤15mm.
The most according to claim 1, device, wherein, permeable dividing plate permeable hole should be less than solid packing particle diameter.
5. application method of device as described in claim 1 or 4 any one, it is characterised in that comprise the following steps:
1) secondary effluent is entered water distributor (2) by water inlet pipe through intake pump (1) and is passed through aerobe rotating disk (3), and aerobe turns
Dish regulates rotating speed by wheel controller (13), and aerobe rotary speed controls 2.0～4.0r/min, controls aerobic zone water
Power time of staying HRTAerobic1.0～2.0h；
2) the most double settling zone of muddy water mixed solution (5), after mud-water separation, sludge settling enters discharge pipeline (8) or mud returns
Flow tube (9), returned sludge is back to the biochemistry pool of municipal sewage plant, and return sludge ratio is 20%～50%；
3) sewage is upper is passed through cellular volcanic rock solid packing through permeable dividing plate (7), controls anaerobic zone hydraulic detention time
HRTAnaerobism4.0～6.0h；
4) sewage enters clean water overflow district, upper strata, through water outlet overflow baffle afterwards by cellular volcanic rock solid packing (6)
(10) outlet pipe (11) is entered；
Aerobe rotating disk (3) needs periodically to remove unnecessary and aging microorganism, specific as follows: the COD value bar more than 50mg/L
Controlling 10～20d/ time under part, COD value is less than controlling in the case of 50mg/L 20～30d/ time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610700295.2A CN106186321B (en) | 2016-08-21 | 2016-08-21 | A kind of integrated energy-saving nitrogen rejection facility and method |
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| CN201610700295.2A CN106186321B (en) | 2016-08-21 | 2016-08-21 | A kind of integrated energy-saving nitrogen rejection facility and method |
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| CN106186321A true CN106186321A (en) | 2016-12-07 |
| CN106186321B CN106186321B (en) | 2019-01-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745742A (en) * | 2016-12-27 | 2017-05-31 | 中冶华天南京工程技术有限公司 | River water body ammonia nitrogen cleaning system |
| CN107235559A (en) * | 2017-07-12 | 2017-10-10 | 北京化工大学 | The synchronization denitrification apparatus and method of a kind of sewage automatic cycle flowing |
| CN115043492A (en) * | 2022-06-24 | 2022-09-13 | 江西省科学院能源研究所 | Sewage denitrification device and method thereof |
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| US20070023356A1 (en) * | 2005-06-09 | 2007-02-01 | Cuenca Manuel A | Active Biological Contactor (ABC); A Modular Wastewater Treatment System |
| WO2016098012A1 (en) * | 2014-12-19 | 2016-06-23 | Degremont | Novel facility for treating waste water |
| CN204385034U (en) * | 2015-01-20 | 2015-06-10 | 长江大学 | A kind of composite rotating bio-disc waste disposal plant |
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