CN101302057A - Biological film reactor for denitrification and phosphorus removal and use method thereof - Google Patents
Biological film reactor for denitrification and phosphorus removal and use method thereof Download PDFInfo
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- CN101302057A CN101302057A CNA2008100367640A CN200810036764A CN101302057A CN 101302057 A CN101302057 A CN 101302057A CN A2008100367640 A CNA2008100367640 A CN A2008100367640A CN 200810036764 A CN200810036764 A CN 200810036764A CN 101302057 A CN101302057 A CN 101302057A
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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 relates to a reactor and a method for using the same in the water treatment field. In a biofilm reactor used for denitrogenation and dephosphorization, a circulating tube (4) which is suspended in the center of the reactor is provided with biofilm carriers (2) inside, and is connected to a rotary aerator (8) through an inlet nozzle (3); the outside of the inner circulating tube (4) is provided with a downward flow area, is provided with a water inlet (5) on the lower part, is provided with a mud-water separator (9) and a water outlet (1) on the upper part, and is provided with a mud discharge port (6) on the bottom part. The method for using the reactor comprises the steps that: 1. a biofilm is formed in the reactor; 2. water is inputted into the reactor; 3. the water circulates in the inner circulating tube (4) from the bottom to the top outwards repeatedly driven by the rotary aerator (8); 4. nitrogen, phosphorus and other materials causing eutrophication are removed, after the water is contacted with the biofilm; 5. each parameter is controlled; 6. treated purified water flows out from the water outlet (1); 7. redundant biofilm and mud are discharged from the mud discharge port (6) and the mud-water separator (9). The method provides a device and a method for high-efficiency and rapid bioremediation repair of polluted surface water.
Description
Technical field
The present invention relates to water treatment, Environmental Biotechnology and biochemical reaction engineering field, specifically is a kind of a kind of biofilm reactor and using method thereof of utilizing technology of biological membrane waste water to be carried out denitrogenation dephosphorizing.
Background technology
Along with the continuous development of industrial and agricultural production and improving constantly of people's living standard, surface water such as many natural rivers, lake and view waters all have been subjected to pollution, major part has all formed eutrophication more or less, mainly shows as nitrogen in the water body, phosphorus severe overweight.These pollutions cause natural water bodies such as river, lake and view waters all multi-functionally has been subjected to destruction.
In addition because many regional lacks of water, people are just endeavouring the water after the municipal wastewater treatment plant processing is carried out reuse, one of purpose of carrying out advanced treatment for this class water body is exactly a denitrogenation dephosphorizing further, mainly still adopt the method for active sludge when people carry out denitrogenation dephosphorizing to water body at present, though this type of mode has certain processing effect, but adopt the microbial film method to have more efficiently characteristics fast, especially therefore biological denitrificaion carries out denitrogenation dephosphorizing and develops corresponding biofilm reactor all kinds of water bodys just seeming extremely important.
The microbial film method that many in the past patented technologies are introduced is repaired in the water body technology, the bio-reactor that is adopted, be to adopt granular biofilm carrier to be filled in the reactor randomly mostly, this carrier is after using certain the time, along with biomembranous growth, be easy to cause the obstruction of reactor bed.This class reactor also be unfavorable for forming aerobic zone and oxygen-starved area simultaneously in same reactor, thereby the effect of denitrogenation dephosphorizing is still undesirable in addition.
People wish can have aerobic zone and anaerobic zone simultaneously in a reactor, to help the carrying out of nitrification and denitrification, can remove ammonia nitrogen, nitrate nitrogen and nitrite nitrogen simultaneously, also also help the removal of total phosphorus.Such reactor is used for surface water when repairing, and can make polluted waters obtain repairing in a short period of time, for some burst waters incident, as is subjected to the water body of complicated contaminants, and utilizing microbial film to carry out biological restoration then more has its advantage.Therefore the method for researching and developing out a kind of biofilm reactor that has aerobic zone and anaerobic zone simultaneously and denitrogenation dephosphorizing all has crucial meaning to the reparation and the middle water reuse of surface water.
Summary of the invention
The object of the present invention is to provide the method for a kind of biomembrance process reactor and denitrogenation dephosphorizing.
Goal of the invention of the present invention is achieved by the following technical solution:
A kind of biofilm reactor that is used for denitrogenation dephosphorizing, it is characterized in that, central mounting one inner circulating tube 4 in the vertical and cylindrical reactor, inner circulating tube 4 is divided into the upper and lower, upper and lower in the inner circulating tube 4 is placed respectively and is cellular biological film ceramic carrier 2, last, between the bottom, the air inlet mouth of pipe 3 that is imported by the outside inserts rotary aerator 8, and the inside of inner circulating tube 4 is the up-flow district, and its top is aerobic zone, the bottom is an anaerobic zone, for falling the stream district, the below wall is offered water-in 5 between the outside of inner circulating tube 4 and the wall of reactor, and the top is a separator for mud and water 9, wall in mud-water separation 9 sets out the mouth of a river 1, and reactor bottom is offered mud discharging mouth 6.
Described biological film ceramic carrier 2 is the light thin-wall structure.
A kind of using method that is used for the biofilm reactor of denitrogenation dephosphorizing is characterized in that:
1. form microbial film on the biofilm carrier in described reactor, the method for nature formation or the method for seed sludge are adopted in biomembranous formation:
Naturally the method for Xing Chenging is, cellular biological film ceramic carrier 2 touches water to be repaired or that handle, under normal operating condition, forms highly active aerobic biologic membrane at aerobic zone, forms the anaerobe film at anaerobic zone;
The method of seed sludge is, the honeycomb substrate on top be impregnated in the cultured aerobic sludge of domestication 10 to 30 minutes, by the aerobic zone of packing into behind the absorption formation aerobic biologic membrane, the honeycomb substrate of lower, anaerobic be impregnated in the cultured anaerobic sludge of domestication after 10 to 30 minutes, form the anaerobic zone of packing into behind the anaerobe film.
2. with water to be repaired or that handle, by the power or the natural discrepancy in elevation, in lower water inlet 5 input reactors;
3. in reactor, to be repaired or the water handled is under the driving of rotary aerator 8, inner by inner circulating tube 4 upwards through cellular biofilm carrier 2 arrival reactor tops, between the outside of inner circulating tube 4 and wall of reactor, flow downward again, upwards turn back again from reactor bottom again, arrive rotary aerator 8 again through inner circulating tube 4 and carry out aeration, circulation so goes round and begins again;
4. the to be repaired or water handled causes wherein that respectively with after aerobic, anaerobe film contacts the ammonia nitrogen of eutrophication and phosphorus obtain removal in reactor;
5. comprise dissolved oxygen concentration, hydraulic detention time and pH parameter in the controlling reactor, keep in the water a certain amount of dissolved oxygen being arranged in aerobic zone, oxygen in water consumption is complete before entering anaerobic zone;
6. in the continuous treating processes, water outlet realizes mud-water separation after the separator for mud and water 9 of top separates, and water purification flows out from water outlet 1;
7. in the continuous treating processes, unnecessary microbial film and mud can be discharged from the mud discharging mouth 6 or the separator for mud and water 9 of reactor bottom.
Described 5. controlling reactor intrinsic parameter, the dissolved oxygen concentration of its aerobic zone only is converted into when recirculation is through anaerobic zone behind the nitrite nitrogen ammonia nitrogen, carries out denitrification process and is converted into nitrogen, realizes short distance nitration and denitrification.
The inventive method is used for the efficiently biological restoration fast of polluted surface water, especially realizes efficiently biological denitrificaion fast by short distance nitration and denitrification.This reactor also can be extended to relevant water and field of waste water treatment with using method.The inventive method can efficiently be repaired contaminated river course, lake and view waters etc. apace, recovers original beautiful view of surface water and function of water body.This bio-reactor can also carry out advanced treatment to the water outlet after municipal sewage plant's second-stage treatment in addition, the pretreated purpose of water reuse in reaching.Also can be used for the processing of similar trade effluent.
Description of drawings
Fig. 1 is a kind of sectional structure synoptic diagram that is used for the biofilm reactor of denitrogenation dephosphorizing of the present invention.
Among the figure: 1-water outlet, the cellular-shaped biological film ceramic carrier of 2-, 3-inlet mouth, 4-inner circulating tube, 5-water-in, 6-mud discharging mouth, 7-water (flow) direction, 8-rotary aerator, 9-separator for mud and water
Embodiment
How further specify the present invention below in conjunction with drawings and Examples realizes:
Embodiment one, a kind of formation that is used for the biofilm reactor of denitrogenation dephosphorizing
Central mounting one inner circulating tube 4 in the vertical and cylindrical reactor, inner circulating tube 4 is divided into the upper and lower, upper and lower in the inner circulating tube 4 is placed respectively and is cellular biological film ceramic carrier 2, last, between the bottom, the air inlet mouth of pipe 3 that is imported by the outside inserts rotary aerator 8, the inside of inner circulating tube 4 is the up-flow district, its top is aerobic zone, the bottom is an anaerobic zone, for falling the stream district, the below wall is offered water-in 5 between the outside of inner circulating tube 4 and the wall of reactor, and the top is a separator for mud and water 9, wall in mud-water separation 9 sets out the mouth of a river 1, and reactor bottom is offered mud discharging mouth 6.
Embodiment two, and a kind of biofilm reactor of denitrogenation dephosphorizing is used for the biological restoration process of contaminated surface water:
1. with pending water by water pump in lower water inlet 5 input reactors;
2. biomembranous formation, the method for employing seed sludge
The honeycomb substrate of aerobic zone was immersed in the good aerobic activated sludge solution of domestication after 10 to 30 minutes, and in the aerobic zone of packing into, the honeycomb substrate with anaerobic zone is immersed in the good anaerobic activated sludge solution of domestication after 10 to 30 minutes, in the anaerobic zone of packing into simultaneously.Adopt intermittently or the mode of operation continuously, the removal situation of examination total nitrogen or total phosphorus, when the clearance of total nitrogen or total phosphorus reach stable after, think the biofilm success.Wherein:
A. intermittent operation mode:
At the biomembranous biofilm initial stage, adopt method intermittently to carry out the surface water reparation.Every batch will remain the sewage emptying, hydraulic detention time 1～3h, and this moment, influent ammonium concentration was 4～12mg/L, and total nitrogen concentration is 8～20mg/L, and total phosphorus concentration is 0.8～3mg/L, and temperature is at 10～30 ℃.After 5～10 batches processing, ammonia nitrogen removal frank rises to more than 99% from 25%, and nitrogen removal rate reaches more than 80%, and the clearance of total phosphorus reaches more than 60%.
B. continuously-running duty:
When intermittent operation to certain hour, after the clearance of ammonia nitrogen, total nitrogen and total phosphorus reaches and stablizes, water inlet is changed into the mode of continuous operation, at the initial stage of moving continuously, hydraulic detention time is 3h, keeping the interior dissolved oxygen concentration of reactor aerobic zone is 2～4mg/L, makes oxygen not become the limiting factor of nitration reaction.This moment, temperature was 12～30 ℃, and influent ammonium concentration is 4～25mg/L; Along with the carrying out of experiment, design the different residence time, be respectively 3h, 2h, 1h, each residence time steady running is more than 10 days, and the removal effect of period detecting ammonia nitrogen is to determine optimum operating condition, to investigate the effect of microbial film to pollutant removal.Under above-mentioned each residence time condition, ammonia-N removal rate all reaches more than 99%, and the clearance of total nitrogen reaches more than 80%, and the clearance of total phosphorus reaches more than 70%.
3. the water of the to be repaired or processing in the input reactor is under the driving of rotary aerator 8, inner at inner circulating tube 4 upwards through cellular biofilm carrier 2 arrival reactor tops, between the outside of inner circulating tube 4 and wall of reactor, flow downward, upwards turn back again from reactor bottom, arrive rotary aerator 8 again through inner circulating tube 4 and carry out aeration, circulation so goes round and begins again;
4. the to be repaired or water handled causes wherein that respectively with after aerobic, anaerobe film contacts the ammonia nitrogen of eutrophication and phosphorus obtain removal in reactor;
5. comprise dissolved oxygen concentration, the residence time and pH parameter in the controlling reactor, in aerobic zone, keep in the water a certain amount of dissolved oxygen being arranged, oxygen in water consumption is complete before entering anaerobic zone, is converted into nitrogen after making ammonia nitrogen be converted into nitrite nitrogen, realizes short distance nitration and denitrification.
6. in the continuous treating processes, water outlet is after the separator for mud and water of top separates 9, and the water that disposes sets out the mouth of a river 1 from the top wall and flows out;
7. in the continuous treating processes, unnecessary microbial film and mud are discharged from the mud discharging mouth 6 or the separator for mud and water 9 of reactor bottom.
Claims (4)
1. biofilm reactor that is used for denitrogenation dephosphorizing, it is characterized in that, central mounting one inner circulating tube (4) in the vertical and cylindrical reactor, inner circulating tube (4) is divided into the upper and lower, the upper and lower of inner circulating tube (4) is placed respectively and is cellular biofilm carrier (2), last, the air inlet mouth of pipe (3) that is imported by the outside between the bottom inserts rotary aerator (8), the inside of inner circulating tube (4) is the up-flow district, its top is aerobic zone, the bottom is an anaerobic zone, distinguish for falling stream between the outside of inner circulating tube (4) and the wall of reactor, the below wall is offered water-in (5), the top is separator for mud and water (9), sets out the mouth of a river (1) at the wall of separator for mud and water (9), and reactor bottom is offered mud discharging mouth (6).
2. biofilm reactor according to claim 1 is characterized in that described biofilm carrier (2) is light thin-wall ceramic honey comb structure.
3. a kind of as claimed in claim using method that is used for the biofilm reactor of denitrogenation dephosphorizing is characterized in that:
1. form microbial film on the biofilm carrier in described reactor, the method for nature formation or the method for seed sludge are adopted in biomembranous formation:
Naturally the method for Xing Chenging is: cellular biofilm carrier (2) under normal operating condition, forms highly active aerobic biologic membrane at aerobic zone after touching the water of to be repaired or processing, forms the anaerobe film at anaerobic zone;
The method of seed sludge is: the honeycomb substrate on top be impregnated in the cultured aerobic sludge solution of domestication 10 to 30 minutes, by the aerobic zone of packing into behind the absorption formation aerobic biologic membrane, the honeycomb substrate of lower, anaerobic be impregnated in the cultured anaerobic sludge solution of domestication after 10 to 30 minutes, form the anaerobic zone of packing into behind the anaerobe film;
2. with water to be repaired or that handle, by the power or the natural discrepancy in elevation, in lower water inlet (5) input reactor;
3. in reactor, to be repaired or the water handled is under the driving of rotary aerator (8), inner at inner circulating tube (4) upwards through cellular biofilm carrier (2) arrival reactor top, between the outside of inner circulating tube (4) and wall of reactor, flow downward, upwards turn back again from reactor bottom, arrive rotary aerator (8) again through inner circulating tube (4) and carry out aeration, the circulation that so goes round and begins again forms internal recycle;
4. the to be repaired or water handled causes wherein that respectively with after aerobic, anaerobe film contacts ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, total nitrogen and the total phosphorus of eutrophication obtains removal in reactor;
5. comprise dissolved oxygen concentration, hydraulic detention time and pH parameter in the controlling reactor;
6. in the continuous treating processes, water outlet separates (9) after separating through the separator for mud and water of top, and water purification sets out the mouth of a river (1) from the mud-water separation wall and flows out;
7. in the continuous treating processes, unnecessary microbial film and mud are discharged from the mud discharging mouth (6) of reactor bottom and the mud discharging mouth of separator for mud and water (9).
4. the using method of biofilm reactor according to claim 3, the operating parameters that it is characterized in that described 5. controlling reactor, be the dissolved oxygen concentration and the hydraulic detention time of aerobic zone, circulation is through anaerobic zone after making ammonia nitrogen only be converted into nitrite nitrogen, be converted into nitrogen at the anaerobic zone nitrite nitrogen, realize short distance nitration and denitrification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100367640A CN101302057A (en) | 2008-04-29 | 2008-04-29 | Biological film reactor for denitrification and phosphorus removal and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100367640A CN101302057A (en) | 2008-04-29 | 2008-04-29 | Biological film reactor for denitrification and phosphorus removal and use method thereof |
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| CN101302057A true CN101302057A (en) | 2008-11-12 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885564A (en) * | 2010-07-01 | 2010-11-17 | 江南大学 | Liquid circulation aerobic reactor propelled by rotary aerator and method for treating leachate in destructor plants |
| CN102910733A (en) * | 2012-11-29 | 2013-02-06 | 河南省化工研究所有限责任公司 | Novel anaerobic ammoxidation denitrification system |
| CN105347471A (en) * | 2014-11-24 | 2016-02-24 | 浙江大学 | Method for reinforcing raw water biological pretreatment biofilm enrichment and operation performance stability |
| CN107698025A (en) * | 2017-11-08 | 2018-02-16 | 中机国际工程设计研究院有限责任公司 | Integrated sewage water denitrification dephosphorization apparatus |
| CN108128898A (en) * | 2018-02-02 | 2018-06-08 | 天津壹新环保工程有限公司 | A kind of baffle type biological membrane reactor and its startup method |
| CN109809558A (en) * | 2019-03-19 | 2019-05-28 | 东北大学 | A kind of Composite denitrification reactor and denitrification treatment process based on sulfenyl filler |
| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
-
2008
- 2008-04-29 CN CNA2008100367640A patent/CN101302057A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885564A (en) * | 2010-07-01 | 2010-11-17 | 江南大学 | Liquid circulation aerobic reactor propelled by rotary aerator and method for treating leachate in destructor plants |
| CN101885564B (en) * | 2010-07-01 | 2012-04-18 | 江南大学 | Liquid circulation aerobic reactor propelled by rotary aerator and method for treating leachate in destructor plants |
| CN102910733A (en) * | 2012-11-29 | 2013-02-06 | 河南省化工研究所有限责任公司 | Novel anaerobic ammoxidation denitrification system |
| CN102910733B (en) * | 2012-11-29 | 2014-06-04 | 河南省化工研究所有限责任公司 | Novel anaerobic ammoxidation denitrification system |
| CN105347471A (en) * | 2014-11-24 | 2016-02-24 | 浙江大学 | Method for reinforcing raw water biological pretreatment biofilm enrichment and operation performance stability |
| CN105347471B (en) * | 2014-11-24 | 2018-02-09 | 浙江大学 | Strengthen the raw water biological pretreatment biomembrane enrichment method stable with runnability |
| CN107698025A (en) * | 2017-11-08 | 2018-02-16 | 中机国际工程设计研究院有限责任公司 | Integrated sewage water denitrification dephosphorization apparatus |
| CN108128898A (en) * | 2018-02-02 | 2018-06-08 | 天津壹新环保工程有限公司 | A kind of baffle type biological membrane reactor and its startup method |
| CN109809558A (en) * | 2019-03-19 | 2019-05-28 | 东北大学 | A kind of Composite denitrification reactor and denitrification treatment process based on sulfenyl filler |
| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
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Open date: 20081112 |