CN106167302A - A kind of quick start method of Nitrobenzol bioreduction device - Google Patents
A kind of quick start method of Nitrobenzol bioreduction device Download PDFInfo
- Publication number
- CN106167302A CN106167302A CN201610628300.3A CN201610628300A CN106167302A CN 106167302 A CN106167302 A CN 106167302A CN 201610628300 A CN201610628300 A CN 201610628300A CN 106167302 A CN106167302 A CN 106167302A
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- CN
- China
- Prior art keywords
- batch reactor
- sequencing batch
- nitrobenzol
- reactor sbr
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F3/2813—Anaerobic digestion processes using anaerobic contact processes
-
- 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
- C02F3/282—Anaerobic digestion processes using anaerobic sequencing batch reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/004—Apparatus and plants for the biological treatment of water, waste water or sewage comprising a selector reactor for promoting floc-forming or other bacteria
Abstract
The invention discloses the quick start method of a kind of Nitrobenzol bioreduction device, use sequencing batch reactor SBR form, seed sludge is from certain Sewage Plant anaerobic sludge, and with propanoic acid as carbon source material, total domestication time is 60d.Sequencing batch reactor SBR water inlet is artificial distribution, the sulfate SO in water inlet4 2‑It is 1:5 with COD ratio.In 0 ~ 30d, NB concentration is 2.5mg/L, forms the sulfate reduction system that sulfate reducting bacteria is dominant population during this period in sequencing batch reactor SBR.In 30 ~ 60d, gradually step up and into the NB concentration in water, the mud in reactor is tamed, improve toleration and the treatment effeciency of mud p-nitrophenyl.The present invention is workable, and the reactor start-up time is short, and the treatment effeciency of p-nitrophenyl is high, has broad application prospects in the waste water such as pesticide, explosive processes.
Description
Technical field
The present invention relates to environmental project water-treatment technology field, a kind of Nitrobenzol bioreduction device quick
Startup method.
Background technology
Nitrobenzol is a kind of typical nitryl aromatic compounds, is widely present in medicine, dyestuff, plastics and explosive work
In industry waste water, there is stronger bio-toxicity.Physicochemical treatment method such as, advanced oxidation, Fenton oxidation and O3/ UV etc., not only
Power consumption height, but also serious secondary pollution may be produced.The most conventional bioanalysis is the most under anaerobic with Organic substance
Or inorganic matter is to carry out oxidative degradation, in the process, nitre again after NB reduction is changed into amine substance (aniline) by electron donor
The reduction of base is the rate-limiting step of its degraded.Biochemical method Nitrobenzol energy consumption and operating cost are cheap, receive the widest
General concern.But owing to Nitrobenzol has stronger bio-toxicity, mud needs the domestication of a period of time be just resistant to and degrade
Certain density Nitrobenzol, thus Nitrobenzol bioreduction device needs longer startup time, generally 100 days (d) with
On.Additionally, Nitrobenzol is as hardly degraded organic substance, reaction rate is slow, and the hydraulic detention time of needs is long.
Summary of the invention it is an object of the invention to provide the quick start method of a kind of Nitrobenzol bioreduction device, with
Solve the problem that prior art Nitrobenzol bioreduction device starts time length.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of quick start method of Nitrobenzol bioreduction device, it is characterised in that: use sequencing batch reactor SBR shape
Formula, arranges agitator in sequencing batch reactor SBR and is stirred, and process is as follows:
(1), sludge seeding:
Seed sludge in sequencing batch reactor SBR, mud is anaerobic sludge, and mud is used before putting into sequencing batch reactor SBR
Distilled water cleans three times, and sludge seeding amount is 2000mgMLVSS/L；
(2), water inlet water source preparation:
Water inlet water source is the simulation industrial wastewater of artificial preparation, and COD=1000mg/L in water distribution, in water distribution, each component and concentration are such as
Under:
Propanoic acid 276mg/L,
SO4 2-200mg/L,
NH4Cl 80mg/L,
KH2PO4 20mg/L,
It is 2.5mg/L in Nitrobenzol 0-30d
In 0-60d, influent concentration steps up to 30mg/L；
(3) start sequencing batch reactor SBR and batch run:
Intake in peristaltic pump to sequencing batch reactor SBR, carry out sequencing batch operation, sequencing batch reactor SBR water-filling ratio 1/3,
Running a batch time is 24h, and 0.5 h of wherein intaking runs 22 h, staticly settles 1 h, draining 0.5 h.
The quick start method of described a kind of Nitrobenzol bioreduction device, it is characterised in that: put into batch-type anti-
Stirring slurry working speed in answering device SBR is 150 ~ 250r/min.
The quick start method of described a kind of Nitrobenzol bioreduction device, it is characterised in that: sequencing batch reactor
SBR can tolerate nitro phenenyl concentration less than 30mg/L after starting.
Tending to 100% at sequencing batch reactor SBR run duration, sulfate reduction rate and sulfide production rate, batch-type is anti-
In answering device SBR, sulfate reducting bacteria is progressively enriched with, and defines sulfate reduction system.Within 30 ~ 60d time period, Nitrobenzol enters
Water concentration is stepped up to 30mg/L by 2.5mg/L, and every 7d improves nitro phenenyl concentration of once intaking.In 60 ~ 80d, batch-type
Nitrobenzene reduction rate in reactor SBR is stable about 99%.
The present invention sets up sulfate reduction system in anaerobism sbr reactor device, and by stepping up Nitrobenzol in water
Mud is tamed by concentration, improves toleration and the rate of reduction of microorganism p-nitrophenyl in reactor, it is achieved Nitrobenzol is also
The Effec-tive Function of former reactor.
Accompanying drawing explanation
Fig. 1 is sequencing batch reactor SBR operating structure figure of the present invention.
Fig. 2 is to intake in implementation process of the present invention, produce main matter concentration change figure in water.
Detailed description of the invention
Build sequencing batch reactor SBR and inlet and outlet system thereof as it is shown in figure 1, sequencing batch reactor SBR4 dischargeable capacity is
5L, cylindric, cross-sectional diameter D=200mm, effective depth H=160mm.Water inlet 3 height of sequencing batch reactor SBR4 is
Outlet 7 height of 170mm, sequencing batch reactor SBR4 is 107mm, and outlet 7 leads to outer row water channel 8, and batch-type reacts
Sample tap 6 height of device SBR4 is 130mm.
For the industrial wastewater of manual simulation preparation in sample introduction case 1, single water distribution quantity is 1.8L, water distribution pass through peristaltic pump 2 from
The water inlet 3 of sequencing batch reactor SBR4 sends into sequencing batch reactor SBR4,
In water distribution, component is:
Propanoic acid 276mg/L,
SO42-200mg/L,
NH4Cl 80mg/L,
KH2PO4 20mg/L,
Other trace element and micro-element concentration are 5ppm；
Nitrobenzol concentration change during sequencing batch reactor SBR starts is shown in Fig. 2.Sequencing batch reactor SBR seed sludge takes
From the anaerobic sludge of certain alcohol waste water treatment plant, inoculum density is 2000mgMLVSS/L, uses batch operation side after sludge seeding
Formula is tamed.Sequencing batch reactor SBR water-filling ratio 1/3, running a batch time is 24h, 0.5 h of wherein intaking, and runs
22 h, staticly settle 1 h, draining 0.5 h.After sequencing batch reactor SBR standing terminates, sample from sample point, analyze water outlet
Nitrobenzol, aniline (nitrobenzene reduction product), sulfate and sulfide concentration, during taming, sequencing batch reactor SBR goes out
Water water quality is shown in Fig. 2.
As shown in Figure 2, in 0 ~ 30d, in sequencing batch reactor SBR, sulfate reduction rate and sulfide production rate tend to
100%, form the sulfate reduction system with sulfate reducting bacteria as dominant population.In 60 ~ 70d, work as sequencing batch reactor
SBR water inlet nitro phenenyl concentration is 30mg/L, and the percent reduction of Nitrobenzol and aniline production rate are stable 99% ~ 100%, and sludge acclimatization is complete
Become.
Claims (3)
1. the quick start method of a Nitrobenzol bioreduction device, it is characterised in that: use sequencing batch reactor SBR shape
Formula, arranges agitator in sequencing batch reactor SBR and is stirred, and process is as follows:
(1), sludge seeding:
Seed sludge in sequencing batch reactor SBR, mud is anaerobic sludge, and mud is used before putting into sequencing batch reactor SBR
Distilled water cleans three times, and sludge seeding amount is 2000mgMLVSS/L；
(2), water inlet water source preparation:
Water inlet water source is the simulation industrial wastewater of artificial preparation, and COD=1000mg/L in water distribution, in water distribution, each component and concentration are such as
Under:
Propanoic acid 276mg/L,
SO4 2-200mg/L,
NH4Cl 80mg/L,
KH2PO4 20mg/L,
It is 2.5mg/L in Nitrobenzol 0-30d
In 0-60d, influent concentration steps up to 30mg/L；
(3) start sequencing batch reactor SBR and batch run:
Water inlet carries out sequencing batch operation in peristaltic pump to sequencing batch reactor SBR, and sequencing batch reactor SBR water-filling ratio is 1/
3, running a batch time is 24h, and 0.5 h of wherein intaking runs 22 h, staticly settles 1 h, draining 0.5 h.
The quick start method of a kind of Nitrobenzol bioreduction device the most according to claim 1, it is characterised in that: throw
Stirring slurry working speed in entering sequencing batch reactor SBR is 150 ~ 250r/min.
The quick start method of a kind of Nitrobenzol bioreduction device the most according to claim 1, it is characterised in that: sequence
Batch reactor SBR can tolerate nitro phenenyl concentration less than 30mg/L after starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628300.3A CN106167302A (en) | 2016-08-03 | 2016-08-03 | A kind of quick start method of Nitrobenzol bioreduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628300.3A CN106167302A (en) | 2016-08-03 | 2016-08-03 | A kind of quick start method of Nitrobenzol bioreduction device |
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| Publication Number | Publication Date |
|---|---|
| CN106167302A true CN106167302A (en) | 2016-11-30 |
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|---|---|---|---|
| CN201610628300.3A Pending CN106167302A (en) | 2016-08-03 | 2016-08-03 | A kind of quick start method of Nitrobenzol bioreduction device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470615A (en) * | 2020-05-06 | 2020-07-31 | 北京工业大学 | Preparation and application of sulfate-reducing-reinforced composite bacteria embedded bioactive filler |
| CN113003702A (en) * | 2021-03-15 | 2021-06-22 | 南京理工大学 | Method for strengthening anaerobic reduction of nitrobenzene by using electrochemical regulation and control of sulfur circulation |
| CN113105072A (en) * | 2021-04-07 | 2021-07-13 | 大连理工大学 | Wastewater desulfurization reactor and resource recycling method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030043134A (en) * | 2001-11-27 | 2003-06-02 | 최철호 | Microbial media and method of microbial media |
| CN105347480A (en) * | 2015-11-18 | 2016-02-24 | 大连理工大学 | Method used for promoting biological reduction of nitrobenzene with biological carbon |
-
2016
- 2016-08-03 CN CN201610628300.3A patent/CN106167302A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030043134A (en) * | 2001-11-27 | 2003-06-02 | 최철호 | Microbial media and method of microbial media |
| CN105347480A (en) * | 2015-11-18 | 2016-02-24 | 大连理工大学 | Method used for promoting biological reduction of nitrobenzene with biological carbon |
Non-Patent Citations (1)
| Title |
|---|
| 丁宁 等: "硝基苯对硫酸盐还原过程的影响", 《环境工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470615A (en) * | 2020-05-06 | 2020-07-31 | 北京工业大学 | Preparation and application of sulfate-reducing-reinforced composite bacteria embedded bioactive filler |
| CN113003702A (en) * | 2021-03-15 | 2021-06-22 | 南京理工大学 | Method for strengthening anaerobic reduction of nitrobenzene by using electrochemical regulation and control of sulfur circulation |
| CN113105072A (en) * | 2021-04-07 | 2021-07-13 | 大连理工大学 | Wastewater desulfurization reactor and resource recycling method thereof |
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Application publication date: 20161130 |
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