CN108793402A - A method of utilizing ferroferric oxide nano granules reinforced anaerobic reactor degradation phenol pollutant - Google Patents
A method of utilizing ferroferric oxide nano granules reinforced anaerobic reactor degradation phenol pollutant Download PDFInfo
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- CN108793402A CN108793402A CN201810781140.5A CN201810781140A CN108793402A CN 108793402 A CN108793402 A CN 108793402A CN 201810781140 A CN201810781140 A CN 201810781140A CN 108793402 A CN108793402 A CN 108793402A
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- anaerobic reactor
- oxide nano
- ferroferric oxide
- nano granules
- anaerobic
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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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Abstract
A method of using ferroferric oxide nano granules reinforced anaerobic reactor degradation phenol pollutant, being related to a kind of method for phenol pollutant of being degraded with anaerobic reactor.The present invention is to solve the technical problems that existing anaerobic technique is poor to the removal effect of phenolic comp ' ds pollution in coal gas wastewater.The present invention：One, using anaerobic grain sludge as initial inoculation mud source, pending waste water is added into anaerobic reactor；Two, ferroferric oxide nano granules are added into anaerobic reactor.The ferroferric oxide nano granules that the present invention adds in anaerobic reactor can form electronics guide chain between acid-producing bacteria and methanogen, generate nm-class conducting wire and transmit electronics, instead of inter-species H2Transmission forms electronics and directly transmits, and to promote anaerobic methane production process, improves the removal rate of phenolic comp ' ds pollution.The present invention is applied to water treatment field.
Description
Technical field
The present invention relates to a kind of methods with anaerobic reactor degradation phenol pollutant.
Background technology
The energy is paid attention to as the essential material base of social development progress by countries in the world.Based on China's fossil
For the demand of clean energy resource, coal gas is being increasingly becoming traditional coal chemical industry by national conditions that the energy gradually decreases and people
One of leading industry, using products such as coal artificial fuel gas, gasoline and basic chemical industry raw materials, to make up the need for clean energy resource
It asks.But coal gas industry still facing to some restrict its development problem, mainly have coal gas production technology have it is to be hoisted,
Production cost is higher, gas contaminated wastewater processed is serious and gas waste water quality complicated component processed, pollutant concentration height, biodegradability are low,
Bio-toxicity is big and water quality stability is poor.Therefore using the process coal gas wastewater of most economical stabilization to coal gas industry
Develop most important.
Contain high-concentration phenol pollutant, refractory organic and Toxic pollutant in coal gas wastewater so that
The process problem of the waste water, which becomes, restricts coal gas industry development one of the major reasons.Since traditional anaerobic technique is to coal gas
The removal effect of Phenol for Waste Water pollutant is poor, and anaerobism reinforcement process becomes new research in coal gas wastewater process field
Direction.
Invention content
The present invention is to solve existing anaerobic technique is poor to the removal effect of phenolic comp ' ds pollution in coal gas wastewater
Technical problem, and a kind of method for phenol pollutant of being degraded using ferroferric oxide nano granules reinforced anaerobic reactor is provided.
The present invention using ferroferric oxide nano granules reinforced anaerobic reactor degrade phenol pollutant method be by with
What lower step carried out：
One, using anaerobic grain sludge as initial inoculation mud source, pending waste water is added into anaerobic reactor, keeps
The temperature of anaerobic reactor is 34 DEG C~37 DEG C, and the hydraulic detention time of anaerobic reactor is 36h, and keeps anaerobic reactor
PH be 7.0~7.4；The pending waste water is that COD is 1700mg/L~2100mg/L, a concentration of 475mg/L of total phenol
The coal gas wastewater of~505mg/L；A concentration of 12g/L~the 15g/L in the initial inoculation mud source in anaerobic reactor；
Two, ferroferric oxide nano granules, the ferroso-ferric oxide added in anaerobic reactor are added into anaerobic reactor
The ratio of the mass concentration of nano particle and the COD concentration of pending waste water is (0.03~0.35):1；Described in step 2
The grain size of ferroferric oxide nano granules is 20nm~60nm.
Pending waste water in step 1 of the present invention is coal gas wastewater, and major pollutants therein are phenols.
The principle of the present invention：Ferroferric oxide nano granules can be converted into various states in anaerobic environment, release
Fe3+/Fe2+It is metallic element necessary to microbial metabolism, the iron of Chelating state, which can enter, participates in electronics in anaerobe body
Transfer, and ferroferric oxide nano granules can form electronics guide chain, generate nm-class conducting wire and transmit electronics, promote organic substance
Degradation utilize；Ferroferric oxide nano granules can change bacterial quorum sensing, promote Diaphorobacter,
The growth of the Phenol degrading bacterias such as Stenotrophomonas, Azotobacter not only improves the content of phenols degradation bacteria group, carries
Its high bio-diversity, but also electronics transfer can be stimulated, promote the degradation of aldehydes matter；Geobacter and
The conduction bacterium such as Methanosaeta, can utilize ferroferric oxide nano granules to form nm-class conducting wire in bacterium surface, promote
Methane phase process is conducive to the degradation of aldehydes matter；Ferroferric oxide nano granules also change ancient flora and fall, and promote production first
The structure and content of alkane bacterium, and the ion discharged is conducive to methane phase process, and promote anaerobism production as electronics guide chain
Methane process.
Beneficial effects of the present invention：
1, the ferroferric oxide nano granules that the present invention adds in anaerobic reactor can be in acid-producing bacteria and methanogen
Between formed electronics guide chain, generate nm-class conducting wire transmit electronics, instead of inter-species H2Transmission forms electronics and directly transmits, to promote
Anaerobic methane production process improves the removal rate of phenolic comp ' ds pollution；
2, the ferroferric oxide nano granules that the present invention adds in anaerobic reactor can change bacterial quorum sensing, promote
Into Diaphorobacter, the growth of the Phenol degrading bacterias such as Stenotrop-homonas, Azotobacter not only improves phenols drop
The content that solution flora is fallen, improves its bio-diversity, but also can stimulate electronics transfer, promotes the degradation of aldehydes matter；
3, the conductive bacterium such as Geobacter and Methanosaeta can utilize the present invention to be added in anaerobic reactor
Ferroferric oxide nano granules bacterium surface formed nm-class conducting wire, promote methane phase process, be conducive to the drop of aldehydes matter
Solution.
After the present invention has added ferroferric oxide nano granules, the COD in being discharged to anaerobic reactor per 36h and total phenol
Detection, in the case where adding ferroferric oxide nano granules, the removal rate of COD is 36%~40%, and total phenol removal rate is 38%
~42%, 8%~15% is improved relative to blank group (not adding ferroferric oxide nano granules) COD removal rates, total phenol removal
Rate improves 9%~12%.
Description of the drawings
Fig. 1 is the sewage disposal system schematic diagram in specific implementation mode one, and 1 is distribution reservoir, and 2 be intake pump, and 3 be anaerobism
Reactor, 4 be drainpipe, and 5 exhaust pipes, 6 be sewage backflow pipe.
Specific implementation mode
Specific implementation mode one：Present embodiment is dropped to be a kind of using ferroferric oxide nano granules reinforced anaerobic reactor
The method for solving phenol pollutant, specifically carries out according to the following steps：
One, using anaerobic grain sludge as initial inoculation mud source, pending waste water is added into anaerobic reactor, keeps
The temperature of anaerobic reactor is 34 DEG C~37 DEG C, and the hydraulic detention time of anaerobic reactor is 36h, and keeps anaerobic reactor
PH be 7.0~7.4；The pending waste water is that COD is 1700mg/L~2100mg/L, a concentration of 475mg/L of total phenol
The coal gas wastewater of~505mg/L；A concentration of 12g/L~the 15g/L in the initial inoculation mud source in anaerobic reactor；
Two, ferroferric oxide nano granules, the ferroso-ferric oxide added in anaerobic reactor are added into anaerobic reactor
The ratio of the mass concentration of nano particle and the COD concentration of pending waste water is (0.03~0.35):1；Described in step 2
The grain size of ferroferric oxide nano granules is 20nm~60nm.
Fig. 1 is the sewage disposal system schematic diagram in specific implementation mode one, and workflow is：In distribution reservoir 1
Pending waste water enters by intake pump 2 in anaerobic reactor 3, and waste water is by treated the water of anaerobic reactor 3 by draining
Pipe 4 excludes, and the gas of generation is excluded by exhaust pipe 5, and treated effluent part is back to distribution reservoir 1.
Specific implementation mode two：The present embodiment is different from the first embodiment in that：Keep anaerobism anti-in step 1
The mode for answering the pH of device to be 7.0~7.4 is that sodium bicarbonate and hydrochloric acid solution is added.Other are same as the specific embodiment one.
Specific implementation mode three：The present embodiment is different from the first and the second embodiment in that：Anaerobism is anti-in step 1
Answer a concentration of 13g/L in the initial inoculation mud source in device.Other are the same as one or two specific embodiments.
Specific implementation mode four：Unlike one of present embodiment and specific implementation mode one to three：Institute in step 2
The grain size for the ferroferric oxide nano granules stated is 40nm~60nm.Other are identical as one of specific implementation mode one to three.
Specific implementation mode five：Unlike one of present embodiment and specific implementation mode one to four：Detest in step 2
The mass concentration of the ferroferric oxide nano granules added in oxygen reactor and the ratio of the COD concentration of pending waste water are
0.12:1.Other are identical as one of specific implementation mode one to four.
The present invention is verified with following tests：
Experiment one：This experiment is a kind of ferroferric oxide nano granules reinforced anaerobic reactor to be utilized to degrade phenol pollutant
Method specifically carries out according to the following steps：
One, using anaerobic grain sludge as initial inoculation mud source, pending waste water is added into anaerobic reactor, keeps
The temperature of anaerobic reactor is 36 DEG C, and the hydraulic detention time of anaerobic reactor is 36h, and keeps the pH of anaerobic reactor to be
7.0~7.4；It is 1700mg/L~2100mg/L that the pending waste water, which is COD, a concentration of 475mg/L of total phenol~
The coal gas wastewater of 505mg/L；A concentration of 13g/L in the initial inoculation mud source in anaerobic reactor；
Two, ferroferric oxide nano granules, the ferroso-ferric oxide added in anaerobic reactor are added into anaerobic reactor
The ratio of the mass concentration of nano particle and the COD concentration of pending waste water is 0.12:1；Four oxidations three described in step 2
The grain size of iron nano-particle is 40nm~60nm.
COD and total phenol in being discharged to anaerobic reactor per 36h are detected, the case where adding ferroferric oxide nano granules
The removal rate of lower COD is 36%~40%, and total phenol removal rate is 38%~42%, and (four oxidations three are not added relative to blank group
Iron nano-particle) COD removal rates raising 8%~15%, total phenol removal rate improves 9%~12%.
Claims (5)
1. a kind of method for phenol pollutant of being degraded using ferroferric oxide nano granules reinforced anaerobic reactor, it is characterised in that profit
It is carried out according to the following steps with the method for ferroferric oxide nano granules reinforced anaerobic reactor degradation phenol pollutant：
One, using anaerobic grain sludge as initial inoculation mud source, pending waste water is added into anaerobic reactor, keeps anaerobism
The temperature of reactor is 34 DEG C~37 DEG C, and the hydraulic detention time of anaerobic reactor is 36h, and keeps the pH of anaerobic reactor
It is 7.0~7.4；It is 1700mg/L~2100mg/L that the pending waste water, which is COD, a concentration of 475mg/L of total phenol~
The coal gas wastewater of 505mg/L；A concentration of 12g/L~the 15g/L in the initial inoculation mud source in anaerobic reactor；
Two, ferroferric oxide nano granules, the ferriferrous oxide nano added in anaerobic reactor are added into anaerobic reactor
The ratio of the mass concentration of particle and the COD concentration of pending waste water is (0.03~0.35):1；Four oxygen described in step 2
The grain size for changing three iron nano-particles is 20nm~60nm.
The phenol pollutant 2. a kind of utilization ferroferric oxide nano granules reinforced anaerobic reactor according to claim 1 is degraded
Method, it is characterised in that it is that sodium bicarbonate and salt is added that the mode that the pH of anaerobic reactor is 7.0~7.4 is kept in step 1
Acid solution.
The phenol pollutant 3. a kind of utilization ferroferric oxide nano granules reinforced anaerobic reactor according to claim 1 is degraded
Method, it is characterised in that a concentration of 13g/L in the initial inoculation mud source in step 1 in anaerobic reactor.
The phenol pollutant 4. a kind of utilization ferroferric oxide nano granules reinforced anaerobic reactor according to claim 1 is degraded
Method, it is characterised in that the grain size of the ferroferric oxide nano granules described in step 2 be 40nm~60nm.
The phenol pollutant 5. a kind of utilization ferroferric oxide nano granules reinforced anaerobic reactor according to claim 1 is degraded
Method, it is characterised in that the mass concentration of the ferroferric oxide nano granules added in anaerobic reactor in step 2 with wait locating
The ratio of the COD concentration of the waste water of reason is 0.12:1.
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| CN201810781140.5A CN108793402A (en) | 2018-07-16 | 2018-07-16 | A method of utilizing ferroferric oxide nano granules reinforced anaerobic reactor degradation phenol pollutant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551765A (en) * | 2019-09-02 | 2019-12-10 | 安徽舜禹水务股份有限公司 | method for anaerobic preparation of methane from landfill leachate |
| CN111302485A (en) * | 2020-03-05 | 2020-06-19 | 北京师范大学 | Biological nano-Fe-loaded material3O4Method for improving methane yield by using anaerobic granular sludge |
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| CN103773807A (en) * | 2012-12-27 | 2014-05-07 | 中国科学院青岛生物能源与过程研究所 | Method for improving anaerobic methanogenesis efficiency by using nano magnetite |
| CN104529116A (en) * | 2015-01-14 | 2015-04-22 | 哈尔滨工业大学 | Method for utilizing nano ferroferric oxide for improving activity of anaerobic digestion methanogens and methanogenesis efficiency |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551765A (en) * | 2019-09-02 | 2019-12-10 | 安徽舜禹水务股份有限公司 | method for anaerobic preparation of methane from landfill leachate |
| CN110551765B (en) * | 2019-09-02 | 2023-02-28 | 安徽舜禹水务股份有限公司 | Method for anaerobic preparation of methane from landfill leachate |
| CN111302485A (en) * | 2020-03-05 | 2020-06-19 | 北京师范大学 | Biological nano-Fe-loaded material3O4Method for improving methane yield by using anaerobic granular sludge |
| CN111302485B (en) * | 2020-03-05 | 2021-03-16 | 北京师范大学 | Biological nano-Fe-loaded material3O4Method for improving methane yield by using anaerobic granular sludge |
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