CN104045202A - Integrated autotrophic biological nitrogen removal collaborative chemical phosphorus removal reactor - Google Patents
Integrated autotrophic biological nitrogen removal collaborative chemical phosphorus removal reactor Download PDFInfo
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- CN104045202A CN104045202A CN201410220460.5A CN201410220460A CN104045202A CN 104045202 A CN104045202 A CN 104045202A CN 201410220460 A CN201410220460 A CN 201410220460A CN 104045202 A CN104045202 A CN 104045202A
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Abstract
An integrated autotrophic biological nitrogen removal collaborative chemical phosphorus removal reactor, which comprises a reactor body, a plurality of partitions and sleeves. The reactor body is provided with a water distribution unit, a deslagging unit, a reaction unit, a three-phase separation unit and a water outlet exhaust unit from the bottom to top. The reaction unit is divided by the partitions and the sleeves into a whole-process autotrophic denitrification reaction zone, a chemical phosphorus removal zone, a reflux dissolution zone and a denitrification nitrogen removal zone. The water distribution unit is provided with a water inlet and an aeration head. The deslagging unit is located at the bottom end of the reflux dissolution zone and chemical phosphorus removal zone of the reactor, and is provided with a slag discharging port. The three-phase separation unit is arranged on the top of the whole-process autotrophic nitrogen removal reaction zone and the denitrification zone and is provided with a flow guide partition. The water outlet exhaust unit comprises a water outlet tank, a water outlet, a gas collecting hood and an exhaust port. The invention has the beneficial effects that dissolved iron, slag and other industrial wastes are used to provide a nitrogen matrix, so as to save carbon sources, reach thorough denitrification, realize treatment of wastes with processes of wastes against one another, recycling of the phosphorus resource waste and achieve many things at one stroke.
Description
Technical field
The present invention relates to the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism.
Background technology
The excessive emissions of Nitrogen-and Phosphorus-containing waste water, has caused a series of ecological environment problems such as body eutrophication in recent years.Process containing the efficient low-consume of ammonia nitrogen, phosphate waste is a difficult problem for sewage treatment area always, in the face of the waste water of low C:N:P ratio, traditional nitrated-nowadays denitrification process and anaerobic-aerobic biological phosphate-eliminating technology be at one's wit's end.
Ferric salt chemical dephosphorization technology has the advantages such as dephosphorization efficiency by using is high, stability is strong, is widely used but the large cost height of consumption restricts it.
Integral type Full Autotrophic Ammonium Removal Process (formula (1)) has without additional organic carbon source, denitrifying load is high, capital construction cost is low, compact construction, the advantages such as device operation and control is simple, and can effectively avoid the inhibition causing due to Nitrite accumulation.But there are following distinct issues: (1) Full Autotrophic Ammonium Removal Process denitrogenation is in the past incomplete, contains certain density nitrate in water outlet; (2) phosphor-removing effect is not obvious.
For these problems, the present invention proposes the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism.Fall the phosphorus (formula (3)) in the water outlet of whole process autotrophic denitrification reaction zone by the ferric ions precipitation that molysite type denitrification (formula (2)) produces, due to molysite type denitrification and the acid of whole process autotrophic denitrification reaction product, can be trivalent iron salt dephosphorization applicable acidic conditions is provided.It is acid that waste water after dephosphorization is still, and can be used to dissolve cheap iron filings or scum and produce ferrous ion, both, for molysite type denitrification provides matrix, reduced again waste water acidity.Ferrous ion is oxidized to ferric ion by molysite type anti-nitration reaction, and after this denitrification denitrogenation district water outlet mixes with the water outlet of whole process autotrophic denitrification district, thereby High-rate sedimentation falls the phosphoric acid salt containing in waste water.Finally realize the perfect adaptation of denitrification of autotrophic organism and chemical dephosphorization, can also the treatment of wastes with processes of wastes against one another without additional carbon, achieve many things at one stroke.
NH
3+0.85O
2→0.11NO
3 -+0.44N
2+1.43H
2O+0.14H
+ (1)
10Fe
2++2NO
3 -+24H
2O→10Fe(OH)
3+N
2+18H
+ (2)
Fe
3++PO
4 3-→FePO
4 (3)
Summary of the invention
The present invention is directed to current Full Autotrophic Ammonium Removal Process denitrogenation not exclusively, contain certain density nitrate, the unconspicuous problem of phosphor-removing effect in water outlet, proposed the collaborative chemical dephosphorizing reactor of a kind of Nitrogen/Phosphorus Removal integral type denitrification of autotrophic organism obvious, simple in structure.
A kind of integral type denitrification of autotrophic organism of the present invention is worked in coordination with chemical dephosphorizing reactor, it is characterized in that: comprise reactor body, be located at some dividing plates and the sleeve of inside reactor, described reactor body is provided with water distribution unit, deslagging unit, reaction member, three phase separation unit, water unit from bottom to top; Described reaction member is divided into whole process autotrophic denitrification reaction zone I, chemical dephosphorization district II, backflow dissolve area III, denitrification denitrogenation district IV by the first dividing plate, second partition, the 3rd dividing plate and sleeve, and wherein said denitrification denitrogenation district IV is by the 4th IV-1st, baffle for separating Cheng Jiangliu denitrification denitrogenation district and IV-2, up-flow denitrification denitrogenation district; Described water distribution unit is provided with water-in, aeration head, and reactor body top is pointed in the air outlet of described aeration head; Described deslagging unit is arranged on reactor chemical dephosphorization district's II and III bottom, backflow dissolve area, and the bottom of corresponding reactor body is provided with corresponding slag-drip opening; Described three phase separation unit is respectively equipped with the first diaphragm, the second diaphragm in whole process autotrophic denitrification reaction zone I and IV top, denitrification denitrogenation district; Described water unit comprises effluent trough, water outlet, gas skirt, venting port, and described gas skirt is arranged on the top of described reactor body and keeps being communicated with the inner chamber of described reactor body; Described venting port is arranged on the top of described gas skirt; Described water outlet is arranged on reactor body top.
Described reactor body is cylindric, and the internal diameter of the diameter of described sleeve and described reactor body is than being 1:2～3.
Described reaction member is divided into whole process autotrophic denitrification reaction zone I, chemical dephosphorization district II, backflow dissolve area III, denitrification denitrogenation district IV by the first described dividing plate, second partition, the 3rd dividing plate, and wherein each district volume ratio is 1:1:1:1.
Described denitrification denitrogenation district IV is divided into IV-1, Jiang Liu denitrification denitrogenation district and IV-2, up-flow denitrification denitrogenation district by the 4th described dividing plate, and bottom, Qie Liang district is communicated with, and described the 4th dividing plate and reactor body aspect ratio are 1:1.2～1.5.
The first described dividing plate and second partition top are respectively equipped with the first right angle communicating pipe, the second right angle communicating pipe of Visible Counterflow, and the first described right angle communicating pipe, the second right angle communicating pipe are all between overflow weir outer wall and tempering tank inwall; Described the first right angle communicating pipe, second right angle communicating pipe opening upwards, and with described water outlet in sustained height; Described II middle and lower part, chemical dephosphorization district is provided with the 3rd right angle communicating pipe that Open Side Down.
Described III upper end, backflow dissolve area is provided with tubular type water stream thruster, and current flow to denitrification denitrogenation district IV from backflow dissolve area III, and flow equals the flooding velocity of twice.
Described III middle part, backflow dissolve area filler is iron filings or scum, and filler is along with the consumption of reaction process supplements and changes.
Angle α between described the first diaphragm, the second flow deflector is 135 °.
Described filler bottom is provided with supporting plate, evenly has aperture on supporting plate.
Described gas skirt is fixed by draw-in groove and all dividing plate respectively, and the wherein said draw-in groove degree of depth is less than frustum cone height.
The advantage of patent of the present invention is mainly reflected in: 1. in a device, realized whole process autotrophic denitrification coupling molysite type denitrification process, thereby solved the incomplete problem of whole process autotrophic biological denitrification process denitrogenation; 2. the ferric iron that utilizes molysite type denitrification to produce is realized efficient chemical dephosphorization; 3. utilize acid-soluble solution scum and the iron filings of whole process autotrophic denitrification reaction and the water outlet of molysite type anti-nitration reaction, can not only provide electron donor for follow-up molysite type denitrification, realize the treatment of wastes with processes of wastes against one another, can also make molysite type denitrification intake within the scope of suitable pH, achieve many things at one stroke.
Brief description of the drawings
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is the subregion schematic diagram of reaction member of the present invention.
Embodiment
Further illustrate the present invention below in conjunction with accompanying drawing
With reference to accompanying drawing:
A kind of integral type denitrification of autotrophic organism of the present invention is worked in coordination with chemical dephosphorizing reactor, comprise reactor body, be located at some dividing plates and the sleeve of inside reactor, described reactor body is provided with water distribution unit, deslagging unit, reaction member, three phase separation unit, water unit from bottom to top; Described reaction member is divided into whole process autotrophic denitrification reaction zone I, chemical dephosphorization district II, backflow dissolve area III, denitrification denitrogenation district IV by the first dividing plate 11, second partition 15, the 3rd dividing plate 21 and sleeve 24, and wherein said denitrification denitrogenation district IV is separated into IV-1, Jiang Liu denitrification denitrogenation district and IV-2, up-flow denitrification denitrogenation district by the 4th dividing plate 20; Described water distribution unit is provided with water-in 1, aeration head 25, and reactor body top is pointed in the air outlet of described aeration head 25; Described deslagging unit is arranged on reactor chemical dephosphorization district's II and III bottom, backflow dissolve area, and the bottom of corresponding reactor body is provided with corresponding slag-drip opening 2,26; Described three phase separation unit is respectively equipped with the first diaphragm 6, the second diaphragm 19 in whole process autotrophic denitrification reaction zone I and IV top, denitrification denitrogenation district; Described water unit comprises effluent trough 17, water outlet 18, gas skirt 13, venting port 14, and described gas skirt 13 is arranged on the top of described reactor body and keeps being communicated with the inner chamber of described reactor body; Described venting port 14 is arranged on the top of described gas skirt 13; Described water outlet 18 is arranged on reactor body top.
Described reactor body is cylindric, and the internal diameter of the diameter of described sleeve 24 and described reactor body is than being 1:2～3.
Described reaction member is divided into whole process autotrophic denitrification reaction zone I, chemical dephosphorization district II, backflow dissolve area III, denitrification denitrogenation district IV by the first described dividing plate 11, second partition 15, the 3rd dividing plate 21, and wherein each district volume ratio is 1:1:1:1.
Described denitrification denitrogenation district IV is divided into IV-1, Jiang Liu denitrification denitrogenation district and IV-2, up-flow denitrification denitrogenation district by the 4th described dividing plate 20, and bottom, Qie Liang district is communicated with, and the 4th described dividing plate 20 is 1:1.2～1.5 with reactor body aspect ratio.
The first described dividing plate 11 and second partition 15 tops are respectively equipped with the first right angle communicating pipe 7, the second right angle communicating pipe 16 of Visible Counterflow, and the first described right angle communicating pipe 7, the second right angle communicating pipe 16 are all between overflow weir 9 outer walls and tempering tank 10 inwalls; Described first right angle communicating pipe 7, second right angle communicating pipe 16 opening upwards, and with described water outlet 18 in sustained height; Described II middle and lower part, chemical dephosphorization district is provided with the 3rd right angle communicating pipe 3 that Open Side Down.
Described III upper end, backflow dissolve area is provided with tubular type water stream thruster 23, and current flow to denitrification denitrogenation district IV from backflow dissolve area III, and flow equals the flooding velocity of twice.
Described III middle part, backflow dissolve area filler 5 is iron filings or scum, and filler 5 is along with the consumption of reaction process supplements and changes.
Angle α between described the first diaphragm 6, the second flow deflector 19 is 135 °.
Described filler 5 bottoms are provided with supporting plate 4, evenly have aperture on supporting plate 4.
Described gas skirt 13 is fixed by draw-in groove 11,8 and all dividing plate 11,15,20,21 respectively, and wherein said draw-in groove 11,8 degree of depth are less than frustum cone height.
Content described in this specification sheets embodiment is only enumerating of way of realization to inventive concept; protection scope of the present invention should not be regarded as only limiting to the specific form that embodiment states, protection scope of the present invention also comprises that those skilled in the art conceive the equivalent technologies means that can expect according to the present invention.
Claims (10)
1. the collaborative chemical dephosphorizing reactor of integral type denitrification of autotrophic organism, it is characterized in that: comprise reactor body, be located at some dividing plates and the sleeve of inside reactor, described reactor body is provided with water distribution unit, deslagging unit, reaction member, three phase separation unit, water unit from bottom to top; Described reaction member is divided into whole process autotrophic denitrification reaction zone I, chemical dephosphorization district II, backflow dissolve area III, denitrification denitrogenation district IV by the first dividing plate, second partition, the 3rd dividing plate and sleeve, and wherein said denitrification denitrogenation district IV is by the 4th IV-1st, baffle for separating Cheng Jiangliu denitrification denitrogenation district and IV-2, up-flow denitrification denitrogenation district; Described water distribution unit is provided with water-in, aeration head, and reactor body top is pointed in the air outlet of described aeration head; Described deslagging unit is arranged on reactor chemical dephosphorization district's II and III bottom, backflow dissolve area, and the bottom of corresponding reactor body is provided with corresponding slag-drip opening; Described three phase separation unit is respectively equipped with the first diaphragm, the second diaphragm in whole process autotrophic denitrification reaction zone I and IV top, denitrification denitrogenation district; Described water unit comprises effluent trough, water outlet, gas skirt, venting port, and described gas skirt is arranged on the top of described reactor body and keeps being communicated with the inner chamber of described reactor body; Described venting port is arranged on the top of described gas skirt; Described water outlet is arranged on reactor body top.
2. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 1, is characterized in that: described reactor body is cylindric, and the internal diameter of the diameter of described sleeve and described reactor body is than being 1:2～3.
3. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 1, it is characterized in that: described reaction member is divided into whole process autotrophic denitrification reaction zone I, chemical dephosphorization district II, backflow dissolve area III, denitrification denitrogenation district IV by the first described dividing plate, second partition, the 3rd dividing plate, and wherein each district volume ratio is 1:1:1:1.
4. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 3, it is characterized in that: described denitrification denitrogenation district IV is divided into IV-1, Jiang Liu denitrification denitrogenation district and IV-2, up-flow denitrification denitrogenation district by the 4th described dividing plate, bottom, Qie Liang district is communicated with, and described the 4th dividing plate and reactor body aspect ratio are 1:1.2～1.5.
5. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 1, it is characterized in that: the first described dividing plate and second partition top are respectively equipped with the first right angle communicating pipe, the second right angle communicating pipe of Visible Counterflow, and the first described right angle communicating pipe, the second right angle communicating pipe are all between overflow weir outer wall and tempering tank inwall; Described the first right angle communicating pipe, second right angle communicating pipe opening upwards, and with described water outlet in sustained height; Described II middle and lower part, chemical dephosphorization district is provided with the 3rd right angle communicating pipe that Open Side Down.
6. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 4, it is characterized in that: described III upper end, backflow dissolve area is provided with tubular type water stream thruster, current flow to denitrification denitrogenation district IV from backflow dissolve area III, and flow equals the flooding velocity of twice.
7. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 6, is characterized in that: described III middle part, backflow dissolve area filler is iron filings or scum, and filler is along with the consumption of reaction process supplements and changes.
8. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 1, is characterized in that: the angle α between described the first diaphragm, the second flow deflector is 135 °.
9. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 1, is characterized in that: described filler bottom is provided with supporting plate, evenly has aperture on supporting plate.
10. the collaborative chemical dephosphorizing reactor of a kind of integral type denitrification of autotrophic organism as claimed in claim 5, is characterized in that: described gas skirt is fixed by draw-in groove and all dividing plate respectively, and the wherein said draw-in groove degree of depth is less than frustum cone height.
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| CN106517517A (en) * | 2016-11-28 | 2017-03-22 | 北京化工大学 | Self-circulating and self-stirring deep denitrification water purifying tank |
| CN110305859A (en) * | 2019-07-31 | 2019-10-08 | 陕西麦可罗生物科技有限公司 | A method of biological nitrogen is produced using kasugarnycin and polyoxin bacteria residue |
| CN110606626A (en) * | 2019-09-27 | 2019-12-24 | 西安建筑科技大学 | Synchronous nitrogen and phosphorus removal sewage treatment process |
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