CN103880177A - Wastewater treatment method - Google Patents

Wastewater treatment method Download PDF

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Publication number
CN103880177A
CN103880177A CN201210580420.2A CN201210580420A CN103880177A CN 103880177 A CN103880177 A CN 103880177A CN 201210580420 A CN201210580420 A CN 201210580420A CN 103880177 A CN103880177 A CN 103880177A
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district
nitrogen
wastewater treatment
denitrogenation
wastewater
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CN201210580420.2A
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CN103880177B (en
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张婷婷
张冠甫
张盛钦
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Industrial Technology Research Institute ITRI
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Industrial Technology Research Institute ITRI
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Abstract

A wastewater treatment method comprises the steps of adding Nitrite and wastewater containing ammonia into a bioreactor comprising an anaerobic ammonia oxidation zone and a denitrification zone that are communicated. The anaerobic ammonia oxidation zone and the denitrification zone are separated by a separation structure, wherein, the Nitrite and wastewater containing ammonia are added into the anaerobic ammonia oxidation zone for reaction so as to generate nitrogen and nitrate nitrogen; wastewater containing ammonia after reaction enters the denitrification zone from the anaerobic ammonia oxidation zone, and the nitrate nitrogen enters into the denitrification zone for denitrification reaction.

Description

Method of wastewater treatment
Technical field
The present invention is about a kind of method of wastewater treatment, espespecially a kind of Anammox treatment process of nitrogen-containing wastewater.
Background technology
The ammonia nitrogen waste water of the low organic concentration of high ammonia nitrogen, is present in high-tech industry conventionally, as semiconductor manufacturing industry or LED production etc.In its processing procedure, mainly utilize ammonia or ammoniacal liquor, the high-concentration ammonia nitrogenous wastewater of generation enters waste water treatment plant and processes.Just at present tradition nitrated/denitrogenation program present situation, the efficiency of Simultaneous Nitrification is lower, occupation area of equipment is larger, is therefore difficult for reaching the water quality standard of releasing of rules control.
Tradition ammonia nitrogen biological treatment mode is nitrated-denitration method, must be through a series of biological respinse, and comprise ammonia nitrogen oxidation bacterium (ammonia oxidation bacteria, AOB) ammonia nitrogen is oxidized to nitrous acid nitrogen; After continue, by nitrous acid nitrogen oxidation bacterium (nitrite oxidation bacteria, NOB), nitrous acid nitrogen be oxidized to nitrate nitrogen; Finally by denitrifier, nitrous acid nitrogen being reduced into nitrogen treatment completes.But the integrated operation of this processing mode is comparatively consumed energy, and running cost is higher.
Another kind of ammonia nitrogen processing mode is Anammox program (anammox process), the carbonic acid gas (CO that this microorganism utilizes nature to exist under anaerobic state 2) as carbon source, directly using ammonia nitrogen as electronics supplier, nitrite nitrogen is as electronics recipient, carry out three valence electrons and transmit the process that generates nitrogen of reacting, needn't need to additionally expend unnecessary cost and energy as traditional program of denitrogenating, do not need to provide a large amount of oxygen that mineralized nitrogen is become to nitrate nitrogen, also do not need to provide organic carbon source to carry out denitration reaction.The biochemical reaction of this Anammox is:
NH 4 ++1.32NO 2 -+0.066HCO 3 -+0.13H +??1.02N 2+0.26NO 3 -+0.066CH 2O 0.5N 0.1 5+2.03H 2O
But above-mentioned biochemical reaction, after anaerobic ammonium oxidation apparatus carries out, need additionally arrange a nitrogen rejection facility conventionally, reduce the concentration of nitrate nitrogen, guarantee to process the statutory standard that water can meet total nitrogen or nitrate nitrogen.Because nitrogen rejection facility needs the extra organism that adds as denitrogenation carbon source, therefore cannot carry out solid-liquid separation and reclaim mud by single settler, because mud need be through raising and train, if cannot reduce the efficiency of wastewater treatment and raise the cost by efficient recovery mud.
Summary of the invention
The disclosure provides a kind of method of wastewater treatment, comprise: nitrogen-containing wastewater and nitrous acid nitrogen are imported in the bio-reactor (biological rector) that an inside has the Anammox district that communicates with each other and denitrogenation district, this Anammox district and denitrogenation district separate by isolating construction, and there is autotroph in this Anammox district, in this denitrogenation district, there is different job thing, wherein, this nitrogen-containing wastewater is imported into this Anammox district with nitrous acid nitrogen and reacts, to produce nitrogen and nitrate nitrogen; And make this nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district, and make this nitrate nitrogen enter this denitrogenation district to carry out denitrification reaction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of disclosure method of wastewater treatment;
Fig. 2 illustrates the method for wastewater treatment of the disclosure one specific embodiment;
Fig. 3 shows the plate body of this isolating construction and the stereographic map of choke tube; And
Fig. 4 shows through disclosure method of wastewater treatment Pollutant levels after treatment.
Primary clustering nomenclature
1,2 bio-reactor
10 Anammox districts
12 denitrogenation districts
14,14' isolating construction
140 plate bodys
1401 holes
141 choke tubes
142 block pieces
15 pipelines
16 tilted plates
18 first return lines
19 second return lines
W nitrogen-containing wastewater
W' is through the nitrogen-containing wastewater of reaction
D gap
P pump.
Embodiment
By particular specific embodiment, embodiment is described below, this another technician can understand other advantage of the present invention and effect easily by content disclosed in the present specification.
Refer to Fig. 1, the schematic diagram of method of wastewater treatment is described.
The method of wastewater treatment that the disclosure provides carries out in an inside has the bio-reactor 1 in the Anammox district 10 that communicates with each other and denitrogenation district 12, and Anammox district 10 and denitrogenation district 12 in this single creature reactor 1 separate by isolating construction 14.This method of wastewater treatment comprises that nitrogen-containing wastewater W is imported to this Anammox district 10 with nitrous acid nitrogen to react, to produce nitrogen and nitrate nitrogen; And make this nitrogen-containing wastewater W' through reaction enter this denitrogenation district 12 from this Anammox district 10, and make this nitrate nitrogen enter this denitrogenation district 12 to carry out denitrification reaction.
In one specific embodiment, this nitrogen-containing wastewater is equal proportion with the mole ratio of nitrous acid nitrogen,
Or as 1:1.32.
On the other hand, because of after the biochemical reaction of Anammox, 1/8 left and right that remaining nitrate nitrogen is total nitrogen, in bio-reactor, the volume in this denitrogenation district 12 can be less than the volume in this Anammox district 10.
In the time carrying out wastewater treatment, in this Anammox district, there is autotroph, for example anaerobic ammonia oxidation microbiological, has different job thing in this denitrogenation district, for example, denitrifier etc.In one specific embodiment, this autotroph is present in non-particulateization mud or anaerobic grain mud.In addition carrying out, and first mud raises and train to the degree that can carry out wastewater treatment.Because this method of raising and train is for known to these those skilled in the art, therefore not in repeating herein.
Nitrogen-containing wastewater W imports behind this Anammox district 10, makes this nitrogen-containing wastewater W' through reaction enter this denitrogenation district 12 from this Anammox district 10 with 8 to 18m/hr flow velocity.As a rule, can influent stream waste water pump the total Water of collocation backflow water pump reach default flow speed value.
In one specific embodiment, this autotroph is present in non-particulateization mud, and this non-particulateization mud comprises plural activated carbon particle.This non-particulateization mud comprises plural activated carbon particle, can be used as the carrier of autotroph, avoids the weight of this autotroph to kick the beam and is taken to this denitrogenation district 12.
In one specific embodiment, the particle diameter of this plural number activated carbon particle is between 15 to 25 orders.
In one specific embodiment, when this autotroph is present in non-particulateization mud, be controlled to 13 to 18m/hr flow velocity and make this nitrogen-containing wastewater W' through reaction enter this denitrogenation district 12 from this Anammox district 10.
In another specific embodiment, this autotroph is present in anaerobic grain mud, and makes this nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district with 8 to 12m/hr flow velocity.
In another specific embodiment, this different job thing is present in non-particulateization mud and/or granular sledge as denitrification microorganism.
In addition,, in method of wastewater treatment of the present disclosure, be also included in this denitrogenation district 12 and add carbon source.For example, utilize a pipeline 15 that methyl alcohol or Virahol are added to this denitrogenation district 12, using as the required carbon source of denitrification microorganism.
Refer to Fig. 2, another specific embodiment of method of wastewater treatment is described.
As shown in Figure 2, this bio-reactor is perpendicular tower groove or a tubing string of establishing, and in this bio-reactor 2, also separates this Anammox district 10 and denitrogenation district 12 by isolating construction 14.Therefore in the present embodiment, this Anammox district 10 is positioned at this 12 belows, denitrogenation district.
In addition, the volume in this denitrogenation district 12 is less than the volume in this Anammox district 10.For example, the volume ratio in the volume in this denitrogenation district 12 and this Anammox district 10 is 1:8 to 1:10.
In nonrestrictive embodiment, this bio-reactor 2 also has another isolating construction 14' again, and Shi Gai denitrogenation district 12 is positioned at two isolating constructions 14, between 14'.
In specific embodiment, this isolating construction 14,14' comprises: be fixed on the plate body 140 of these bio-reactor 2 inwalls, have the hole 1401 that plural number runs through; Plural number choke tube 141, respectively corresponding this hole 1401 that connects of this choke tube 141; And plural block piece 142, correspondence is located at this choke tube 141 belows, and makes between this choke tube 141 and this block piece 142 and have gap d.In this isolating construction 14, in the concrete enforcement of 14', this block piece 142 can be fixed on plate body 140 or this bio-reactor 2 inwalls, and can be fixed by elongated metalwork or plastic fastening (not icon).
Refer to Fig. 3, with plate body 140 and choke tube 141 shown in stereographic map explanation, respectively these choke tube 141 correspondences connect this hole 1401 and are located at this plate body 140 bottom surfaces.
In the non-limiting example of Fig. 2, this bio-reactor 2 also has tilted plate 16, and Shi Gai denitrogenation district 12 is between this isolating construction 14 and tilted plate 16, and wherein, this tilted plate 16 can stop solid, for example denitrifying sludge, and liquid can pass through this tilted plate 16.
In addition, in one embodiment, this autotroph is present in anaerobic sludge, be with, these 12 bottoms, denitrogenation district in this bio-reactor, these isolating construction 14 tops have the first return line 18, and can pass through the conveying of pump P, and the anaerobic sludge that rises to this denitrogenation district 12 is back to this Anammox district 10.
Again, this different job thing is present in denitrifying sludge, therefore these 12 tops, denitrogenation district have the second return line 19, and can pass through the conveying of pump P, and the denitrifying sludge rising on this another isolating construction 14' is back to this denitrogenation district 12.On the other hand, also can add this denitrogenation district 12 by the second return line 19 as methyl alcohol or the Virahol of carbon source, using as the required carbon source of denitrification microorganism.
Embodiment
Utilize a bio-reactor that comprises Anammox district (volume is 40L) and be positioned at the denitrogenation district (volume is 5L) of top, this anaerobic ammonium oxidation reaction zone to carry out wastewater treatment test; wherein, in Anammox district, implant the anaerobic ammonia oxidation microbiological of raising and train in anaerobic grain mud (as Candidatus Kuenenia stuttgartiensis; Candidatus Anammoxoglobus propionicus; Candidatus Jettenia asiatica; Candidatus Brocadia fulgida; The Pseudomonas such as Candidatus Brocadia anammoxidans); And denitrogenation district implants the denitrification microorganism of raising and train in non-particulateization mud or anaerobic grain mud.And make this nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district with the flow velocity of 8m/hr, wherein, the ammonia nitrogen concentration of pending nitrogen-containing wastewater and nitrous acid nitrogen concentration are 240mg/L and 260mg/L.The average treatment amount of bio-reactor is 60mL/min, is converted into total nitrogen load for about 1kg N/m 3-d.The every Pollutant levels pointer of turnover flowing water of this waste water process bio-reactor of the present invention as shown in Figure 4, wherein, is analyzed weekly a secondary data, obtains 6 groups of results.
Result as shown in Figure 4, though the ammonia nitrogen of influent stream water and nitrous acid nitrogen concentration up to 260mg/L and 300mg/L, ammonia nitrogen and nitrous acid nitrogen concentration that reactor goes out flowing water are reduced to respectively below 30mg/L, the clearance of target contaminant can reach more than 90%.Again, in this reaction theory, should produce the nitrate nitrogen of about 56mg/L, but by method of the present disclosure, reactor goes out the only about 2mg/L of nitrate nitrogen of flowing water.
Above-described embodiment is in order to illustrative principle of the present disclosure and effect thereof, but not for limiting the disclosure.Any these those skilled in the art all can, under spirit of the present disclosure and category, modify to above-described embodiment.Therefore rights protection scope of the present disclosure, should be as listed in claims.

Claims (18)

1. a method of wastewater treatment, is characterized in that, comprising:
Nitrogen-containing wastewater and nitrous acid nitrogen are imported in the bio-reactor that an inside has the Anammox district that communicates with each other and denitrogenation district, this Anammox district and denitrogenation district separate by isolating construction, and there is autotroph in this Anammox district, in this denitrogenation district, there is different job thing, this nitrogen-containing wastewater is imported into this Anammox district with nitrous acid nitrogen and reacts, to produce nitrogen and nitrate nitrogen; And
Make to enter this denitrogenation district through the nitrogen-containing wastewater of reaction from this Anammox district, and make this nitrate nitrogen enter this denitrogenation district to carry out denitrification reaction.
2. method of wastewater treatment as claimed in claim 1, is characterized in that, makes this nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district with 8 to 18m/hr flow velocity.
3. method of wastewater treatment as claimed in claim 1, is characterized in that, this Anammox district is positioned at this below, denitrogenation district.
4. method of wastewater treatment as claimed in claim 1, is characterized in that, the volume in this denitrogenation district is less than the volume in this Anammox district.
5. method of wastewater treatment as claimed in claim 1, is characterized in that, the volume ratio in the volume in this denitrogenation district and this Anammox district is 1:8 to 1:10.
6. method of wastewater treatment as claimed in claim 1, is characterized in that, this autotroph is present in non-particulateization mud or anaerobic grain mud.
7. method of wastewater treatment as claimed in claim 6, is characterized in that, this autotroph is present in non-particulateization mud, and this non-particulateization mud comprises plural activated carbon particle.
8. method of wastewater treatment as claimed in claim 7, is characterized in that, the particle diameter of this plural number activated carbon particle is between 15 to 25 orders.
9. method of wastewater treatment as claimed in claim 7, is characterized in that, makes this nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district with 13 to 18m/hr flow velocity.
10. method of wastewater treatment as claimed in claim 6, is characterized in that, this autotroph is present in anaerobic grain mud, and makes this nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district with 8 to 12m/hr flow velocity.
11. method of wastewater treatment as claimed in claim 1, is characterized in that, this different job thing is present in non-particulateization mud or anaerobic grain mud.
12. method of wastewater treatment as claimed in claim 1, is characterized in that, this isolating construction comprises:
Be fixed on the plate body of this bio-reactor inwall, there is the hole that plural number runs through;
Plural number choke tube, respectively corresponding this hole that connects of this choke tube; And
Plural number block piece, correspondence is located at this choke tube below, and makes between this choke tube and this block piece and have gap.
13. method of wastewater treatment as claimed in claim 1, is characterized in that, this bio-reactor has another isolating construction again, and Shi Gai denitrogenation district is positioned between two isolating constructions.
14. method of wastewater treatment as claimed in claim 1, is characterized in that, this bio-reactor has tilted plate again, and Shi Gai denitrogenation district is positioned between this isolating construction and tilted plate.
15. method of wastewater treatment as claimed in claim 1, are also included in this denitrogenation district and add carbon source.
16. method of wastewater treatment as claimed in claim 1, is characterized in that, this autotroph is present in anaerobic sludge, and have the first return line bottom this denitrogenation district, make the anaerobic sludge that rises to this denitrogenation district be back to this Anammox district.
17. method of wastewater treatment as claimed in claim 13, is characterized in that, this different job thing is present in denitrifying sludge, and this top, denitrogenation district has the second return line, and the denitrifying sludge that makes to rise on this another isolating construction is back to this denitrogenation district.
18. method of wastewater treatment as claimed in claim 1, is characterized in that, this nitrogen-containing wastewater and nitrous acid nitrogen are equal proportion.
CN201210580420.2A 2012-12-19 2012-12-27 Method of wastewater treatment Active CN103880177B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101007684A (en) * 2007-01-19 2007-08-01 华南理工大学 Anerobic ammoxidation and denitrification synergistic denitrification method for garbage leachate
CN101050026A (en) * 2007-04-17 2007-10-10 北京市环境保护科学研究院 Deepness denitrogenation method for treating organic wastewater in high concentration
CN101759320A (en) * 2008-12-26 2010-06-30 财团法人工业技术研究院 Treating system and method of ammonia nitrogen wastewater
CN102765811A (en) * 2011-05-02 2012-11-07 株式会社日立工业设备技术 Waste water processing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101007684A (en) * 2007-01-19 2007-08-01 华南理工大学 Anerobic ammoxidation and denitrification synergistic denitrification method for garbage leachate
CN101050026A (en) * 2007-04-17 2007-10-10 北京市环境保护科学研究院 Deepness denitrogenation method for treating organic wastewater in high concentration
CN101759320A (en) * 2008-12-26 2010-06-30 财团法人工业技术研究院 Treating system and method of ammonia nitrogen wastewater
CN102765811A (en) * 2011-05-02 2012-11-07 株式会社日立工业设备技术 Waste water processing method

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TWI522322B (en) 2016-02-21
TW201425236A (en) 2014-07-01
CN103880177B (en) 2015-09-16

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