CN1709810A - Domestic sewage denitrifying-dephosphorizing method and apparatus - Google Patents
Domestic sewage denitrifying-dephosphorizing method and apparatus Download PDFInfo
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- CN1709810A CN1709810A CNA2005100187911A CN200510018791A CN1709810A CN 1709810 A CN1709810 A CN 1709810A CN A2005100187911 A CNA2005100187911 A CN A2005100187911A CN 200510018791 A CN200510018791 A CN 200510018791A CN 1709810 A CN1709810 A CN 1709810A
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
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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
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Abstract
One kind method and equipment for life sewage's denitrogenation and dephosphorization belongs to the water treatment domain. The method is that the sewage through obligate baffle reactor obligate sludge layer, spreads the phosphorus on the iron filings padding layer, remove the organic pollutant microorganism in obligate way, the not transformed organic pollutant is degraded in aerobic sunk-style biofilter biomembrane, the ammonia nitrogen transforms to nitrate nitrogen, then is removed again in obligate region by biomembrane counter- nitrobacter, again passes through the precipitation then discharges. The installment is made up of obligate baffle reactor mutually linking and in turn, the aerobic sunk-style biofilter and settling basin. The obligate baffle reactor compose of 3 - 4 baffle in, the partition board, obligate sludge separate room , 1st traverse has the iron filings padding layer, has counter- tube, in the aerobic sunk-style biofilter has the padding layer.
Description
Technical field
The invention belongs to water treatment field, be applicable to domestic sewage treating.
Background technology
The city domestic sewage treatment technology of China more than 80% adopts aerobic activated sludge process at present, owing to need a large amount of aerations, thereby investment is big, the energy consumption height.In recent years, the anaerobic treatment city domestic sewage becomes a research focus.Yet anaerobic biological treatment does not have the denitrogenation dephosphorizing ability, has limited it greatly in Application of Sewage.For domestic sewage treating, employing anaerobic biological treatment+oxidation pond technology is abroad arranged, remove a part of nitrogen, phosphorus by oxidation pond, but the oxidation pond floor space is big, be not suitable for the national conditions that China has a large population and a few land.Domestic existing dephosphorization process is mainly biological phosphate-eliminating, but need set up sludge reflux pump and pipeline etc., and investment is increased, and flow process is complicated, is unfavorable for daily operation management.Some developed countries of Europe extensively adopt the chemical precipitation method dephosphorization, and the precipitation agent of employing has ferric sulfate, ferric oxide, ferrous sulfate etc., its cost height usually.Existing " a kind of alternative expression internal recycle aerobe reactor " (number of patent application 200410009048) comprises that communicating aperture, each reaction tank between aerobe reaction tank, each reaction tank is provided with water inlet pipe and the dual-side pond is provided with effluent weir and rising pipe.The aerobe reaction tank is 4, and 4 reaction tanks are arranged side by side; The reaction tank that is positioned at both sides is provided with water inlet pipe, effluent weir and rising pipe, is positioned at the intermediary reaction tank and only is provided with water inlet pipe; Between each reaction tank to be provided with communicating aperture and reflux pump; The reaction tank of both sides alternately uses as aeration tank and settling tank, and middle two reaction tanks use as the aeration tank all the time.
Anaerobic baffled reactor is a kind of new and effective anaerobic reactor of studying and being applied gradually, with the research of aerobic process and usefulness relevant report is arranged also abroad, but this method has only the COD of removal and denitrogenation ability, does not have the dephosphorization ability.In the water body too high levels of phosphorus will cause environment many unfavorable, as lake eutrophication, the ornamental value that reduces water body, harm humans and biological existence etc., studies show that phosphorus is the restricted factor of body eutrophication, whenever can cause 950g (dry weight) algae grows to water body discharging 1g phosphorus.Therefore, waste water dephosphorization is particularly crucial to preventing body eutrophication.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide a kind of high-efficient denitrification and dephosphorization ability that has, do not stop up, capacity of resisting impact load is strong, take up an area of less, the cost that puts into operation is low, energy consumption is little, the operational management method and the device of domestic sewage denitrifying-dephosphorizing simply and easily.
The implementation of the object of the invention is, a kind of method of domestic sewage denitrifying-dephosphorizing, city domestic sewage is regulated after distributing trough 1 enters anaerobic baffled reactor 4 through grid filtration, guide functions through traverse baffle 2, zig-zag was streamed about current were, at first the flow through anaerobic sludge layer of the 1st compartment, again through the iron filings packing layer, the H in iron filings and the water
+Reaction generates Fe
2+And then with water in phosphorus reaction, generation ferrous phosphate precipitation, waste water flows through the 2nd successively then, 3, the anaerobic sludge layer of 4 compartments, utilizing anaerobion that organic pollutant is converted into methane gas discharges, the organic pollutant that fully transforms further degraded under the microbial film effect of aerobic submerged bio-filter 6 not yet, ammonia nitrogen is converted into nitric nitrogen under the effect of aerobic nitrification bacterium, being converted into nitrogen by the denitrifying bacteria effect again in biomembranous anaerobic zone discharges, last waste water flows into settling tank 9, the microbial film fragment that comes off precipitates in this compartment, discharges through rising pipe 10 through the water outlet of post precipitation.
A kind of device of domestic sewage denitrifying-dephosphorizing, anaerobic baffled reactor 4, aerobic submerged bio-filter 6 and settling tank 9 connect successively mutually, anaerobic baffled reactor 4 is made up of 3-4 compartment, each compartment is by traverse baffle 2, dividing plate 14 is divided into the upward flow chamber, down to the stream chamber, all be added with anaerobic sludge in each compartment, form more thick anaerobic sludge layer in the compartment bottom, the 1st compartment connects distributing trough 1, the top, upward flow chamber of the 1st compartment is provided with iron filings packing layer 3, iron filings packing layer 3 bottoms are furnished with recoil tube 13, be provided with elasticity or semi soft packing 7 in the aerobic submerged bio-filter 6, lower disposed has aeration tube 12, settling tank 9 is a back taper, and there is baffle plate 8 centre, and settling tank 9 is connected to shore pipe 11 and rising pipe 10.
The following advantage that the present invention has:
1, anaerobic baffled reactor has extremely strong capacity of resisting impact load, submerged bio-filter has the advantage of activated sludge process and biomembrance process concurrently, add iron filings filler 3 in the anaerobic baffled reactor 4 again, both organic assembling have high-efficient denitrification and dephosphorization ability and higher organic pollutant removal rate;
2, the agent set current are run by gravity, except that regular recoil needs one determined power of aerobic submerged bio-filter 6 aerations and iron filings packing layer 3, need not other energy, and power consumption is few;
3, the integrated device of agent set, have occupation of land less, the cost that puts into operation is low;
4, stronger to organic loading fluctuation adaptive faculty, so this device is less demanding to equalizing tank;
5, process structure is simple, is difficult for stopping up;
6, no reflux pump and return line, energy consumption is little, operational management is simple and convenient.
Description of drawings
Accompanying drawing is an apparatus structure synoptic diagram of the present invention
Embodiment
With reference to accompanying drawing, this device is made up of the anaerobic baffled reactor 4, aerobic submerged bio-filter 6 and the settling tank 9 that connect mutually successively.Anaerobic baffled reactor is made up of the compartment of traverse baffle, dividing plate, anaerobic sludge in 3-4, each compartment is divided into upward flow chamber, following to the stream chamber by traverse baffle 2, dividing plate 14, all be added with anaerobic sludge in each compartment, form more thick anaerobic sludge layer in the compartment bottom, the 1st compartment connects distributing trough 1, the top, upward flow chamber of the 1st compartment is provided with iron filings packing layer 3, and iron filings packing layer 3 bottoms are furnished with recoil tube 13.Be provided with flow deflector 5, elasticity or semi soft packing 7 in the aerobic submerged bio-filter 6, lower disposed has aeration tube 12, and settling tank 9 is a back taper, and there is baffle plate 8 centre, and settling tank 9 is connected to shore pipe 11 and rising pipe 10.
The present invention is provided with the iron filings packing layer in the 1st compartment of anaerobic baffled reactor, the H in iron filings and the water
+Reaction generates Fe
2+, and and then generate the ferrous phosphate precipitation with phosphorus reaction in the water; The unreacted Fe of part
2+In aerobic submerged bio-filter 6, be oxidized to Fe
3+, generate the tertiary iron phosphate precipitation with phosphorus reaction again, thereby reach the dephosphorization purpose; The issuable polyacid of crossing that neutralized simultaneously makes methanogen avoid the reactor acidifying in its optimal ph scope (6.8-7.2).Meanwhile, ferrous ion is a kind of ionogen, makes to be difficult for the effect of settled colloidal organic matter particle generation coagulation in the sanitary sewage, thereby removes from waste water; The existence of the ferrous ion of reductibility in the waste water simultaneously makes redox potential ORP reduce, and for methanogen provides a good environment, has improved activity; On the other hand, under the precipitation capture effect of the ferrous phosphate precipitation that generates and tertiary iron phosphate precipitation that in aerobic submerged bio-filter 6, generates and ironic hydroxide flocks, particulate organic matter in the sewage is also precipitated, and sludge settling property improves, thereby has improved the clearance of COD greatly.
Have only aerobic submerged bio-filter 6 need carry out certain aeration in this device, because organism is significantly eliminated (having removed 50-60%) in anaerobic baffled reactor 4 before, therefore organic loading is low, and aeration rate greatly reduces, and energy expenditure can reduce to the utmost point low.Elastic solid filler or semi soft packing organic loading are low, and consumption is few, thereby reduces cost of investment greatly.
Particular content of the present invention is described in detail in detail below: city domestic sewage is regulated after distributing trough 1 flows into anaerobic baffled reactor 4 through grid filtration, and through the guide functions of traverse baffle 2, current are in the upward flow chamber, stream up and down between the stream chamber down.At first the flow through anaerobic sludge layer of the 1st compartment, the organic pollutant in the waste water decomposes under the effect of anaerobic hydrolysis-acidification flora, is converted into low molecular solvability organic acid etc., thereby waste water ph descends; Iron filings in the iron filings packing layer and the H in the water
+Reaction generates Fe
2+, and then with water in phosphorus reaction, generate the ferrous phosphate precipitation, from waste water, remove.The waste water anaerobic sludge layer of the 2nd, 3,4 compartments of flowing through successively makes full use of anaerobion and removes organic ability then, organic pollutant is converted into methane gas discharges.Waste water flow to aerobic submerged bio-filter 6 through flow deflector 5, the organic pollutant that fully transforms further degraded under the microbial film effect of adhering on the elastic solid filler of aerobic submerged bio-filter 6 or the semi soft packing yet.Ammonia nitrogen is converted into nitric nitrogen under the effect of aerobic nitrification bacterium in this compartment, is converted into the nitrogen discharge by the denitrifying bacteria effect again in biomembranous anaerobic zone, thereby reaches the purpose of denitrogenation.Last waste water flows into settling tank 9, and current slow down, and the microbial film fragment that comes off precipitates at this, discharges through rising pipe 10 through the water outlet of post precipitation.
Excess sludge in each compartment, the pond is regularly got rid of through shore pipe 11.The recoil tube 13 of iron filings packing layer 3 bottoms regularly recoils, and iron filings is washed away, to upgrade the iron filings surface.
Carried out handling the test of sanitary sewage with the present invention: the experiment water inlet is community life sewage, and water inlet TP (total phosphorus) mean value is 4.45mg/L.The result is as follows: the average removal rate of TP is 76.5%, is up to 81%, and TP mean value is 1.04mg/L in the water outlet, is low to moderate 0.87mg/L most, reaches " urban wastewater treatment firm pollutant emission standard " GB18918-2002 primary standard substantially.
To the removal effect of organic pollutant, when water inlet COD concentration was 353mg/L, clearance reached 86.8%, and water outlet COD is low to moderate 46.6mg/L; When water inlet COD was 172mg/L, the water outlet COD of device was low to moderate 27.2mg/L, reaches primary standard A standard.
Water inlet TN (total nitrogen) is between 19-28mg/L, and clearance has also reached primary standard about 50%.
Claims (2)
1, a kind of method of domestic sewage denitrifying-dephosphorizing, it is characterized in that city domestic sewage regulates after distributing trough (1) enters anaerobic baffled reactor (4) through grid filtration, guide functions through traverse baffle (2), zig-zag was streamed about current were, at first the flow through anaerobic sludge layer of the 1st compartment, again through the iron filings packing layer, the H in iron filings and the water
+Reaction generates Fe
2+And then with water in phosphorus reaction, generation ferrous phosphate precipitation, waste water flows through the 2nd successively then, 3, the anaerobic sludge layer of 4 compartments, utilizing anaerobion that organic pollutant is converted into methane gas discharges, the organic pollutant that fully transforms further degraded under the microbial film effect of aerobic submerged bio-filter (6) not yet, ammonia nitrogen is converted into nitric nitrogen under the effect of aerobic nitrification bacterium, being converted into nitrogen by the denitrifying bacteria effect again in biomembranous anaerobic zone discharges, last waste water flows into settling tank (9), the microbial film fragment that comes off precipitates in this compartment, discharges through rising pipe (10) through the water outlet of post precipitation.
2, a kind of device of domestic sewage denitrifying-dephosphorizing, it is characterized in that anaerobic baffled reactor (4), aerobic submerged bio-filter (6) and settling tank (9) connect successively mutually, anaerobic baffled reactor (4) is made up of 3-4 compartment, each compartment is by traverse baffle (2), dividing plate (14) is divided into the upward flow chamber, down to the stream chamber, all be added with anaerobic sludge in each compartment, form more thick anaerobic sludge layer in the compartment bottom, the 1st compartment connects distributing trough (1), the top, upward flow chamber of the 1st compartment is provided with iron filings packing layer (3), iron filings packing layer (3) bottom is furnished with recoil tube (13), be provided with elasticity or semi soft packing (7) in the aerobic submerged bio-filter (6), lower disposed has aeration tube (12), settling tank (9) is a back taper, and there is baffle plate (8) centre, and settling tank (9) is connected to shore pipe (11) and rising pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100187911A CN1314605C (en) | 2005-05-27 | 2005-05-27 | Domestic sewage denitrifying-dephosphorizing method and apparatus |
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|---|---|---|---|
| CNB2005100187911A CN1314605C (en) | 2005-05-27 | 2005-05-27 | Domestic sewage denitrifying-dephosphorizing method and apparatus |
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| CN1709810A true CN1709810A (en) | 2005-12-21 |
| CN1314605C CN1314605C (en) | 2007-05-09 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465109C (en) * | 2007-04-27 | 2009-03-04 | 浙江大学 | sewage treatment device with denitrification function |
| CN101045581B (en) * | 2007-04-27 | 2010-07-21 | 浙江大学 | Aerobic creature treating device for self-return sludge |
| CN103043867A (en) * | 2013-01-09 | 2013-04-17 | 王洪臣 | Low-energy self-circulation treatment method for rural sewage |
| CN104828923A (en) * | 2015-03-31 | 2015-08-12 | 北京宝迪华禹科技发展有限公司 | Medicine for removing phosphorus from high phosphorus wastewater, and recovery technology thereof |
| CN104925948A (en) * | 2015-06-30 | 2015-09-23 | 重庆云图工程技术有限公司 | Immersed circulating biofilter reactor and sewage treatment method |
| CN106904796A (en) * | 2017-04-20 | 2017-06-30 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type SSMBBR sewage disposal systems and processing method |
| CN106927638A (en) * | 2017-04-20 | 2017-07-07 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type MBBR sewage disposal systems and processing method |
| CN107032563A (en) * | 2017-05-24 | 2017-08-11 | 中山市和智电子科技有限公司 | A kind of sewage disposal system |
| CN107601789A (en) * | 2017-11-06 | 2018-01-19 | 成都信息工程大学 | A kind of integrated form integral life sewage processing method |
| CN108658225A (en) * | 2018-05-15 | 2018-10-16 | 北京建筑大学 | A kind of country sewage strengthens composite anaerobic processing unit and processing method |
| CN109734261A (en) * | 2019-03-18 | 2019-05-10 | 大连交通大学 | Domestic sewage denitrifying-dephosphorizing purification tank |
| CN110713254A (en) * | 2019-11-08 | 2020-01-21 | 北京化工大学 | Postposition anaerobic automatic mixing sewage treatment device with enhanced nitrogen and phosphorus removal function |
| CN111056710A (en) * | 2019-12-28 | 2020-04-24 | 西安建筑科技大学 | Sewage advanced treatment and resource recovery system and method for anaerobic ectopic electric release iron membrane bioreactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04151000A (en) * | 1990-10-16 | 1992-05-25 | Meidensha Corp | Method and apparatus for simultaneous removal of nitrogen and phosphorus |
| US5833856A (en) * | 1997-07-18 | 1998-11-10 | Tianjin Municipal Engineering Design And Research Institute | Process for biologically removing phosphorus and nitrogen from wastewater by controlling carbohydrate content therein |
| CN1159233C (en) * | 2002-05-10 | 2004-07-28 | 清华大学 | Equipment for denitrifying and dephosphating sewage in integrated aerobic/anaerobic biologic fiter pool |
| CN1502568A (en) * | 2002-11-26 | 2004-06-09 | 上海西科水科学环保技术有限公司 | Liquid deflection type reactor |
| CN2791032Y (en) * | 2005-05-27 | 2006-06-28 | 湖北大学 | Built-in iron-scurf layer anaerobiclaerobic domestic sewage denitrifying-phosphorus-removing device |
-
2005
- 2005-05-27 CN CNB2005100187911A patent/CN1314605C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465109C (en) * | 2007-04-27 | 2009-03-04 | 浙江大学 | sewage treatment device with denitrification function |
| CN101045581B (en) * | 2007-04-27 | 2010-07-21 | 浙江大学 | Aerobic creature treating device for self-return sludge |
| CN103043867A (en) * | 2013-01-09 | 2013-04-17 | 王洪臣 | Low-energy self-circulation treatment method for rural sewage |
| CN104828923A (en) * | 2015-03-31 | 2015-08-12 | 北京宝迪华禹科技发展有限公司 | Medicine for removing phosphorus from high phosphorus wastewater, and recovery technology thereof |
| CN104925948A (en) * | 2015-06-30 | 2015-09-23 | 重庆云图工程技术有限公司 | Immersed circulating biofilter reactor and sewage treatment method |
| CN106927638A (en) * | 2017-04-20 | 2017-07-07 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type MBBR sewage disposal systems and processing method |
| CN106904796A (en) * | 2017-04-20 | 2017-06-30 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type SSMBBR sewage disposal systems and processing method |
| CN107032563A (en) * | 2017-05-24 | 2017-08-11 | 中山市和智电子科技有限公司 | A kind of sewage disposal system |
| CN107601789A (en) * | 2017-11-06 | 2018-01-19 | 成都信息工程大学 | A kind of integrated form integral life sewage processing method |
| CN108658225A (en) * | 2018-05-15 | 2018-10-16 | 北京建筑大学 | A kind of country sewage strengthens composite anaerobic processing unit and processing method |
| CN109734261A (en) * | 2019-03-18 | 2019-05-10 | 大连交通大学 | Domestic sewage denitrifying-dephosphorizing purification tank |
| CN110713254A (en) * | 2019-11-08 | 2020-01-21 | 北京化工大学 | Postposition anaerobic automatic mixing sewage treatment device with enhanced nitrogen and phosphorus removal function |
| CN110713254B (en) * | 2019-11-08 | 2024-05-28 | 北京化工大学 | Postposition anaerobic automatic mixing sewage treatment device with reinforced denitrification and dephosphorization functions |
| CN111056710A (en) * | 2019-12-28 | 2020-04-24 | 西安建筑科技大学 | Sewage advanced treatment and resource recovery system and method for anaerobic ectopic electric release iron membrane bioreactor |
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| CN1314605C (en) | 2007-05-09 |
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