CN109081436A - A kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge - Google Patents
A kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge Download PDFInfo
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- CN109081436A CN109081436A CN201810929191.8A CN201810929191A CN109081436A CN 109081436 A CN109081436 A CN 109081436A CN 201810929191 A CN201810929191 A CN 201810929191A CN 109081436 A CN109081436 A CN 109081436A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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Abstract
The invention discloses a kind of reuse methods of aging anaerobic ammonium oxidation granular sludge reactor waste sludge, comprise the following steps that: 1) using the floc sludge of low activity, low Anammox bacterial content in the former granular sludge reactor of partial size sieve method exclusion；2) floc sludge is subjected to effluent hot housing；3) granule sludge of high activity, high Anammox bacterial content is obtained using partial size sieve method；4) granule sludge is added and carries out reuse into former granular sludge reactor or new granular sludge reactor.Tests prove that the present invention can strengthen the nitrogen removal performance of former reactor, the starting time of new reactor can also be shortened, realize the regeneration of Anammox waste sludge.
Description
Technical field
Present invention relates particularly to a kind of reuse methods of aging anaerobic ammonium oxidation granular sludge reactor waste sludge.
Background technique
The excessive emissions of nitrogenous compound in recent years cause a series of serious harms such as water eutrophication.Nitrogen in water
Usually exist in the form of ammonia nitrogen, realizes that the efficient low-consume processing of high ammonia-nitrogen wastewater is always the problem of field of environment engineering.
Anaerobic ammonia oxidation process is not necessarily to additional organic carbon source, denitrifying load are high, operating cost is low, space occupied is small etc. because of it
Advantage becomes one of biological denitrification process most economical at present.It is dirty that anaerobic ammonium oxidation granular sludge technology has been successfully applied to processing
Mud digestive juice.Anaerobic ammonium oxidation granular sludge has many advantages, such as load height, strong shock resistance.But long-term running up flow type
In granular sludge reactor, it will lead to granule sludge due to short stream, mass transfer are limited etc. and disintegrate.The sludge grain that this part is disintegrated
Diameter is small, lower than anaerobic ammoxidation activity, and Anammox bacterial content is low, not only influences the denitrogenation potentiality of reactor, also will affect
Effluent quality.It periodically excludes this partial sludge just and can guarantee the nitric efficiency of reactor unit volume.Nevertheless, this part solves
The sludge of body is still a kind of very valuable anaerobic ammonoxidation bacterium concentrating object.
Summary of the invention
In view of the problems of the existing technology, it is an object of the invention to design to propose a kind of aging Anammox
The reuse method of granular sludge reactor waste sludge.The nitrogen removal performance of former reactor can be strengthened by means of the present invention,
The starting time of new reactor can be shortened, realize the regeneration of Anammox waste sludge.
A kind of reuse method of the aging anaerobic ammonium oxidation granular sludge reactor waste sludge, it is characterised in that
It comprises the following steps that:
1) the cotton-shaped dirt of the low activity, low Anammox bacterial content in former granular sludge reactor is excluded using partial size sieve method
Mud；
2) floc sludge is subjected to effluent hot housing；
3) granule sludge of high activity, high Anammox bacterial content is obtained using partial size sieve method；
4) granule sludge is added and carries out reuse into former granular sludge reactor or new granular sludge reactor.
A kind of reuse method of the aging anaerobic ammonium oxidation granular sludge reactor waste sludge, it is characterised in that
The step 1) and 3) in partial size sieve method specifically: reactor sludge is crossed into 80 mesh screens difference collection cut size less than 0.2
The floc sludge and partial size of mm is greater than the granule sludge of 0.2 mm.
A kind of reuse method of the aging anaerobic ammonium oxidation granular sludge reactor waste sludge, it is characterised in that
Effluent hot housing in the step 2) specifically: partial size is seeded to upflow type anaerobic dirt less than the floc sludge of 0.2 mm
In mud bed reactor, sludge seeding volume should be less than the 50% of reactor effective working volume, be pumped into useless containing ammonia containing hardening agent
Water, the starting substrate concentration of the waste water are set as 140 mgTN L-1, originate hydraulic detention time and be set as 24 h；Whenever reactor
The NO of water outlet2 -- N concentration is lower than 20 mg L-1When, with 140 mgTN L-1Stride improves substrate concentration of intaking, in matrix of intaking
NH4 +-N: NO2 -- N=1, when water inlet substrate concentration reaches 560 mgTN L-1Afterwards, be not further added by into water substrate concentration, switch to
20% stride gradually shortens hydraulic detention time, no longer adjusts after hydraulic detention time foreshortens to 1-2 h, and stops in this waterpower
Stay constant operation under the time；Hereafter floc sludge periodically can be discarded using supplement in partial size screening normal direction effluent strengthening reactor,
And collect the mature granule sludge of culture.
A kind of reuse method of the aging anaerobic ammonium oxidation granular sludge reactor waste sludge, it is characterised in that
The ammonia-containing water are as follows: NaH2PO4 10 mg L-1, MgSO4·7H2O 58.6 mg L-1, CaCl2·2H2O 5.65 mg L-1, KHCO3 1 g L-1, NH4 +- N and NO2 -- N concentration is 70-280 mgN L-1, the content of microelement I liquid and II liquid is
1.25 ml L-1；The microelement I liquid composition are as follows: 5.00 gL of EDTA-1, FeSO4 9.14 g·L-1；Microelement
II liquid composition are as follows: EDTA 15.0gL-1, ZnSO4·7H2O 0.430g·L-1, CoCl2·6H2O 0.240 g·L-1,
MnCl2·4H2O 0.990 g·L-1, CuSO4·5H2O 0.250 g·L-1, NaMoO4·2H2O 0.220 g·L-1,
NiCl2·6H2O 0.210 g·L-1, H3BO4 0.014 g·L-1。
A kind of reuse method of the aging anaerobic ammonium oxidation granular sludge reactor waste sludge, it is characterised in that
The hardening agent is the magnetic Nano iron oxide of 20-100 nm of partial size, and additive amount is 70-150 mgFe L-1。
Advantages of the present invention is mainly reflected in: can be strengthened the nitrogen removal performance of former reactor, can also be shortened opening for new reactor
The dynamic time, realize the regeneration of Anammox waste sludge.
Specific embodiment
The present invention is described further combined with specific embodiments below, but protection scope of the present invention is not limited in
This.
A kind of embodiment 1: reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge
1) reactor sludge is crossed into floc sludge and partial size of the 80 mesh screens difference collection cut size less than 0.2 mm and is greater than 0.2 mm
Granule sludge, floc sludge of the collection cut size less than 0.2 mm；
2) floc sludge is subjected to effluent hot housing, specifically: the floc sludge by partial size less than 0.2 mm is seeded to upstream
In formula anaerobic mud bed reactor, sludge seeding volume should be less than the 50% of reactor effective working volume, be pumped into containing hardening agent
Ammonia-containing water, the starting substrate concentration of the waste water is set as 140 mgTN L-1, originate hydraulic detention time and be set as 24 h；Often
As the NO of reactor water outlet2 -- N concentration is lower than 20 mg L-1When, with 140 mgTN L-1Stride improves water inlet substrate concentration, water inlet
NH in matrix4 +-N: NO2 -- N=1, when water inlet substrate concentration reaches 560 mgTN L-1Afterwards, it is not further added by into water substrate concentration, turns
Gradually to shorten hydraulic detention time with 20% stride, no longer adjusted after hydraulic detention time foreshortens to 2 h of 1-, and in this water
Constant operation under the power residence time；
The ammonia-containing water are as follows: NaH2PO4 10 mg L-1, MgSO4·7H2O 58.6 mg L-1, CaCl2·2H2O 5.65
mg L-1, KHCO3 1 g L-1, NH4 +- N and NO2 -- N concentration is 70-280 mgN L-1, the content of microelement I liquid and II liquid
It is 1.25 ml L-1；The microelement I liquid composition are as follows: 5.00 gL of EDTA-1, FeSO4 9.14 g·L-1；It is micro
Element II liquid composition are as follows: EDTA 15.0gL-1, ZnSO4·7H2O 0.430g·L-1, CoCl2·6H2O 0.240 g·L-1,
MnCl2·4H2O 0.990 g·L-1, CuSO4·5H2O 0.250 g·L-1, NaMoO4·2H2O 0.220 g·L-1,
NiCl2·6H2O 0.210 g·L-1, H3BO4 0.014 g·L-1: the hardening agent is the magnetism of 20-100 nm of partial size
Nano iron oxide (γ-Fe2O3), additive amount is 70-150 mgFe L-1；
3) hereafter periodically using the discarded floc sludge of supplement in partial size screening normal direction effluent strengthening reactor, and it is mature to collect culture
Granule sludge；
4) granule sludge is added and carries out reuse into former granular sludge reactor or new granular sludge reactor.
Test example 1:
A kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge of the present invention, floc sludge
35 ± 1 are taken in using partial size sieve methodo2 years anaerobic ammonium oxidation granular sludge reactors are cultivated under C environment.By cotton-shaped dirt
Mud is seeded in the upflow anaerobic sludge blanket reactor that effective volume is 1.0 L, and initial sludge concentration is 12.0 gVSS L-1,
Ammonia-containing water initial substrate concentration containing hardening agent is 140 mg L-1, hydraulic detention time is 24 h；Whenever reactor is discharged
NO2 -- N concentration is lower than 20 mg L-1When, with 140 mgTN L-1Stride improves water inlet substrate concentration (NH4 +-N:NO2 -- N=1),
When water inlet substrate concentration reaches 560 mgTN L-1Afterwards, it is not further added by into water substrate concentration.Switch to gradually shorten water with 20% stride
Power residence time, constant operation after hydraulic detention time foreshortens to 1.2 h.
The ammonia-containing water specifically comprises NaH2PO4 10 mg L-1, MgSO4·7H2O 58.6 mg L-1,
CaCl2·2H2O 5.65 mg L-1, KHCO3 1 g L-1, NH4 +- N and NO2 -- N concentration is 70-280 mgN L-1；Micro member
The content of plain I liquid and II liquid is 1.25 ml L-1；Microelement I liquid composition are as follows: 5.00 gL of EDTA-1, FeSO4 9.14
g·L-1；Microelement II liquid composition are as follows: EDTA 15.0gL-1, ZnSO4·7H2O 0.430g·L-1, CoCl2·6H2O
0.240 g·L-1, MnCl2·4H2O 0.990 g·L-1, CuSO4·5H2O 0.250 g·L-1, NaMoO4·2H2O 0.220
g·L-1, NiCl2·6H2O 0.210 g·L-1, H3BO4 0.014 g·L-1；Hardening agent magnetic Nano iron oxide (γ-Fe2O3,
20 nm) additive amount be 140 mgFe L-1。
Granule sludge in former reactor, the sludge characteristics after discarding floc sludge and hot housing are as shown in table 1, from
In visible discarded floc sludge after hot housing in 60 days, than anaerobic ammoxidation activity (SAA), anaerobic ammonia oxidizing bacteria functional gene
(HzsA) abundance significantly improves, and close to the performance of former reactor granules sludge.
1 three kinds of anaerobic ammonium oxidation sludge Property comparisons of table
。
Claims (5)
1. a kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge, it is characterised in that including following
Processing step:
1) the cotton-shaped dirt of the low activity, low Anammox bacterial content in former granular sludge reactor is excluded using partial size sieve method
Mud；
2) floc sludge is subjected to effluent hot housing；
3) granule sludge of high activity, high Anammox bacterial content is obtained using partial size sieve method；
4) granule sludge is added and carries out reuse into former granular sludge reactor or new granular sludge reactor.
2. a kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge as described in claim 1,
It is characterized in that the step 1) and 3) in partial size sieve method specifically: reactor sludge is crossed into 80 mesh screens and collects grain respectively
Floc sludge and partial size of the diameter less than 0.2 mm are greater than the granule sludge of 0.2 mm.
3. a kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge as described in claim 1,
It is characterized in that effluent hot housing in the step 2) specifically: partial size to be seeded to less than the floc sludge of 0.2 mm
In flow anaerobic sludge bed reactor, sludge seeding volume should be less than the 50% of reactor effective working volume, be pumped into containing reinforcing
The ammonia-containing water of agent, the starting substrate concentration of the waste water are set as 140 mgTN L-1, originate hydraulic detention time and be set as 24 h；
Whenever the NO of reactor water outlet2 -- N concentration is lower than 20 mg L-1When, with 140 mgTN L-1Stride improves water inlet substrate concentration, into
NH in water-based4 +-N: NO2 -- N=1, when water inlet substrate concentration reaches 560 mgTN L-1Afterwards, it is not further added by into water substrate concentration,
Switch to gradually shorten hydraulic detention time with 20% stride, no longer be adjusted after hydraulic detention time foreshortens to 2 h of 1-, and herein
Constant operation under hydraulic detention time；Hereafter it can periodically be discarded using supplement in partial size screening normal direction effluent strengthening reactor cotton-shaped
Sludge, and collect the mature granule sludge of culture.
4. a kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge as claimed in claim 3,
It is characterized in that the ammonia-containing water are as follows: NaH2PO4 10 mg L-1, MgSO4·7H2O 58.6 mg L-1, CaCl2·2H2O
5.65 mg L-1, KHCO3 1 g L-1, NH4 +- N and NO2 -- N concentration is 70-280 mgN L-1, microelement I liquid and II liquid
Content be 1.25 ml L-1；The microelement I liquid composition are as follows: 5.00 gL of EDTA-1, FeSO4 9.14 g·L-1；Microelement II liquid composition are as follows: EDTA 15.0gL-1, ZnSO4·7H2O 0.430g·L-1, CoCl2·6H2O 0.240
g·L-1, MnCl2·4H2O 0.990 g·L-1, CuSO4·5H2O 0.250 g·L-1, NaMoO4·2H2O 0.220 g·L-1, NiCl2·6H2O 0.210 g·L-1, H3BO4 0.014 g·L-1。
5. a kind of reuse method of aging anaerobic ammonium oxidation granular sludge reactor waste sludge as claimed in claim 3,
It is characterized in that the hardening agent is the magnetic Nano iron oxide of partial size 20-100 nm, additive amount is 70-150 mgFe L-1。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113184985A (en) * | 2021-05-19 | 2021-07-30 | 西南交通大学 | Method for promoting stable operation of aerobic granular sludge |
| CN113415881A (en) * | 2021-06-04 | 2021-09-21 | 北京工业大学 | Device and method for realizing autotrophic nitrogen removal and synchronous phosphorus recovery of domestic sewage by using granular sludge with hydroxyapatite as crystal nucleus |
| CN114349161A (en) * | 2022-01-17 | 2022-04-15 | 郑州轻工业大学 | Method for rapidly starting anaerobic ammonia oxidation by using waste sludge |
| CN118324299A (en) * | 2024-04-10 | 2024-07-12 | 天津大学 | Intelligent sewage treatment system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113415881A (en) * | 2021-06-04 | 2021-09-21 | 北京工业大学 | Device and method for realizing autotrophic nitrogen removal and synchronous phosphorus recovery of domestic sewage by using granular sludge with hydroxyapatite as crystal nucleus |
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| CN118324299A (en) * | 2024-04-10 | 2024-07-12 | 天津大学 | Intelligent sewage treatment system and method |
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