CN103880177B - Method of wastewater treatment - Google Patents

Method of wastewater treatment Download PDF

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CN103880177B
CN103880177B CN201210580420.2A CN201210580420A CN103880177B CN 103880177 B CN103880177 B CN 103880177B CN 201210580420 A CN201210580420 A CN 201210580420A CN 103880177 B CN103880177 B CN 103880177B
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district
wastewater treatment
denitrogenation
nitrogen
anammox
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CN103880177A (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 kind of method of wastewater treatment, comprise: nitrogen-containing wastewater and cultured water are imported an inside and have in the bio-reactor in Anammox district and the denitrogenation district communicated with each other, this Anammox district and denitrogenation district are separated by isolating construction, wherein, this nitrogen-containing wastewater and cultured water are imported into this Anammox district and react, to produce nitrogen and nitrate nitrogen; And make the nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district, and this nitrate nitrogen is made to enter this denitrogenation district to carry out denitrification reaction.

Description

Method of wastewater treatment
Technical field
The present invention 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 usually, as semiconductor manufacturing industry or LED production etc.Due in its processing procedure, mainly utilize ammonia or ammoniacal liquor, the high-concentration ammonia nitrogenous wastewater of generation then enters waste water treatment plant and processes.Just at present tradition nitrated/denitrogenation program present situation, the efficiency of Simultaneous Nitrification is lower, and occupation area of equipment is comparatively large, therefore not easily reaches the water quality standard of releasing of regulatory.
Tradition ammonia nitrogen biological treatment mode is nitrated-denitration method, has to pass through a series of biological respinse, comprises ammonium oxidation bacterium (ammonia oxidation bacteria, AOB) and ammonium oxidation is become cultured water; After continue, by cultured water oxidation bacteria (nitrite oxidationbacteria, NOB), cultured water be oxidized to nitrate nitrogen; Last then by denitrifier, cultured water is reduced into nitrogen treatment and completes.But the integrated operation of this processing mode is comparatively consumed energy, and running cost is higher.
Another kind of NH_3-N treating 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 electron acceptors, carry out three valence electrons and transmit the process that reaction generates nitrogen, need not the cost that needs extra consumption unnecessary of the program of denitrogenating as traditional and energy, do not need to provide a large amount of oxygen that mineralized nitrogen is become 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 usually, reduce the concentration of nitrate nitrogen, guarantee that process water can meet the statutory standard of 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 by single settler and reclaim mud, because mud need through raising and train, if cannot efficient recovery mud, reducing the efficiency of wastewater treatment and raising the cost.
Summary of the invention
The disclosure provides a kind of method of wastewater treatment, comprise: nitrogen-containing wastewater and cultured water are imported an inside and have in the bio-reactor (biological rector) in Anammox district and the denitrogenation district communicated with each other, this Anammox district and denitrogenation district are separated by isolating construction, and in this Anammox district, there is autotroph, in this denitrogenation district, there is different job thing, wherein, this nitrogen-containing wastewater and cultured water are imported into this Anammox district and react, to produce nitrogen and nitrate nitrogen; And make this nitrogen-containing wastewater through reaction enter this denitrogenation district from this Anammox district, and this nitrate nitrogen is made to 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
The Pollutant levels of Fig. 4 system display after the process of disclosure method of wastewater treatment.
Primary clustering nomenclature
1,2 bio-reactors
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
Below by way of particular specific embodiment, embodiment is described, 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 has in the bio-reactor 1 in Anammox the district 10 and denitrogenation district 12 communicated with each other in an inside and carries out, and the Anammox district 10 in this single creature reactor 1 and denitrogenation district 12 are separated by isolating construction 14.This method of wastewater treatment comprises and nitrogen-containing wastewater W and cultured water are imported this Anammox district 10 reacts, 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 this nitrate nitrogen is made to 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 cultured water,
Or as 1:1.32.
On the other hand, because of after the biochemical reaction of Anammox, remaining nitrate nitrogen is about 1/8 of total nitrogen, and in bio-reactor, the volume in this denitrogenation district 12 can be less than the volume in this Anammox district 10.
When carrying out wastewater treatment, in this Anammox district, there is autotroph, such as anaerobic ammonia oxidation microbiological, in this denitrogenation district, there is different job thing, such as, denitrifier etc.In one specific embodiment, this autotroph is present in non-particulateization mud or anaerobic grain mud., and first carry out mud and raise and train degree to wastewater treatment can be carried out in addition.Because this method of raising and train is known to these those skilled in the art, therefore not in repeating herein.
After nitrogen-containing wastewater W imports this Anammox district 10, this nitrogen-containing wastewater W' through reaction is made to enter this denitrogenation district 12 from this Anammox district 10 with the flow velocity of 8 to 18m/hr.As a rule, can influent stream waste water pump collocation backflow water pump total Water 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 activated carbon particle is between 15 to 25 orders.
In one specific embodiment, when this autotroph is present in non-particulateization mud, the flow velocity being controlled to 13 to 18m/hr makes 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 the flow velocity of 8 to 12m/hr.
In another specific embodiment, this different job thing such as denitrification microorganism is present in non-particulateization mud and/or granular sledge.
In addition, in method of wastewater treatment of the present disclosure, be also included in this denitrogenation district 12 and add carbon source.Such as, utilize a pipeline 15 that methyl alcohol or Virahol are added this denitrogenation district 12, using as the carbon source needed for 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 the perpendicular tower groove established or a tubing string, 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 below this denitrogenation district 12.
In addition, the volume in this denitrogenation district 12 is less than the volume in this Anammox district 10.Such as, the volume in this denitrogenation district 12 and the volume ratio in this Anammox district 10 are 1:8 to 1:10.
Again in nonrestrictive embodiment, this bio-reactor 2 also has another isolating construction 14', and this denitrogenation district 12 is positioned between two isolating constructions 14,14'.
In specific embodiment, this isolating construction 14,14' comprises: the plate body 140 being fixed on this bio-reactor 2 inwall, has the hole 1401 that plural number runs through; Plural number choke tube 141, respectively this choke tube 141 correspondence connects this hole 1401; And plural block piece 142, correspondence is located at below this choke tube 141, and makes between this choke tube 141 and this block piece 142 and have gap d.In the concrete enforcement of this isolating construction 14,14', this block piece 142 can be fixed on plate body 140 or this bio-reactor 2 inwall, and can be fixed (non-icon) by elongated metalwork or plastic fastening.
Refer to Fig. 3, with stereographic map, shown plate body 140 and choke tube 141 are described, respectively this choke tube 141 correspondence connects this hole 1401 and is located at this plate body 140 bottom surface.
In the non-limiting example of Fig. 2, this bio-reactor 2 also has tilted plate 16, makes this denitrogenation district 12 between this isolating construction 14 and tilted plate 16, and wherein, this tilted plate 16 can stop solid, such as denitrifying sludge, and liquid is then by this tilted plate 16.
In addition, in one embodiment, this autotroph is present in anaerobic sludge, be with, bottom this denitrogenation district 12 in this bio-reactor, namely above this isolating construction 14, there is the first return line 18, and by the conveying of pump P, the anaerobic sludge rising to this denitrogenation district 12 is back to this Anammox district 10.
Again, this different job thing is present in denitrifying sludge, therefore this top, denitrogenation district 12 has the second return line 19, and by the conveying of pump P, the denitrifying sludge risen on this another isolating construction 14' is back to this denitrogenation district 12.On the other hand, also add this denitrogenation district 12 by the second return line 19 as the methyl alcohol of carbon source or Virahol, using as the carbon source needed for denitrification microorganism.
Embodiment
The bio-reactor in a denitrogenation district (volume is 5L) comprising Anammox district (volume is 40L) and be positioned at above this anaerobic ammonium oxidation reaction zone is utilized to carry out wastewater treatment test; wherein, the anaerobic ammonia oxidation microbiological that in Anammox district, implantation is raised and train in anaerobic grain mud is (as Candidatus Kuenenia stuttgartiensis; CandidatusAnammoxoglobus 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 cultured water concentration are 240mg/L and 260mg/L.The average treatment amount of bio-reactor is 60mL/min, and being converted into total nitrogen load is about 1kg N/m 3-d.This waste water through bio-reactor of the present invention the every Pollutant levels pointer of turnover flowing water as shown in Figure 4, wherein, analyze weekly a secondary data, obtain 6 groups of results.
Result as shown in Figure 4, even if the ammonia nitrogen of influent stream water and cultured water concentration are up to 260mg/L and 300mg/L, reactor goes out the ammonia nitrogen of flowing water and cultured water concentration is reduced to below 30mg/L respectively, and the clearance of target contaminant can reach more than 90%.Again, this reaction theory should produce the nitrate nitrogen of about 56mg/L, but by method of the present disclosure, reactor goes out the nitrate nitrogen only about 2mg/L of flowing water.
Above-described embodiment in order to illustrative principle of the present disclosure and effect thereof, but not for limiting the disclosure.These those skilled in the art any all without prejudice under spirit of the present disclosure and category, can modify to above-described embodiment.Therefore rights protection scope of the present disclosure, should listed by claims.

Claims (18)

1. a method of wastewater treatment, is characterized in that, comprising:
Nitrogen-containing wastewater and cultured water being imported an inside has in the bio-reactor in Anammox district and the denitrogenation district communicated with each other, this Anammox district and denitrogenation district are separated by isolating construction, and in this Anammox district, there is autotroph, in this denitrogenation district, there is different job thing, this nitrogen-containing wastewater and cultured water are imported into this Anammox district and react, to produce nitrogen and nitrate nitrogen; And
Make the 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.
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 the flow velocity of 8 to 18m/hr.
3. method of wastewater treatment as claimed in claim 1, it is characterized in that, this Anammox district is positioned at below this denitrogenation district.
4. method of wastewater treatment as claimed in claim 1, it 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, it is characterized in that, the volume in this denitrogenation district and the volume ratio in this Anammox district are 1:8 to 1:10.
6. method of wastewater treatment as claimed in claim 1, it 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, it 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, it is characterized in that, the particle diameter of this plural 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 the flow velocity of 13 to 18m/hr.
10. method of wastewater treatment as claimed in claim 6, it 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 the flow velocity of 8 to 12m/hr.
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, it 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 this choke tube correspondence connects this hole; And
Plural number block piece, correspondence is located at below this choke tube, and makes between this choke tube and this block piece and have gap.
13. method of wastewater treatment as claimed in claim 1, it is characterized in that, this bio-reactor has another isolating construction again, and this denitrogenation district is positioned between two isolating constructions.
14. method of wastewater treatment as claimed in claim 1, it is characterized in that, this bio-reactor has tilted plate again, and this 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, it is characterized in that, this autotroph is present in anaerobic sludge, and has the first return line bottom this denitrogenation district, makes the anaerobic sludge rising to this denitrogenation district be back to this Anammox district.
17. method of wastewater treatment as claimed in claim 13, it is characterized in that, this different job thing is present in denitrifying sludge, this top, denitrogenation district has the second return line, makes the denitrifying sludge risen on this another isolating construction be back to this denitrogenation district.
18. method of wastewater treatment as claimed in claim 1, it is characterized in that, this nitrogen-containing wastewater and cultured water 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

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