CN103466905A - Method for treating nitrobenzene and aniline in wastewater by using microorganisms - Google Patents
Method for treating nitrobenzene and aniline in wastewater by using microorganisms Download PDFInfo
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Abstract
The invention discloses a method for treating nitrobenzene and aniline in wastewater by using microorganisms. According to the method for treating the nitrobenzene and the aniline in the wastewater by using the microorganisms, the wastewater passes through three treatment systems in all, the treatment systems comprise the first treatment system, the second treatment system and the third treatment system, wherein the first treatment system is composed of a first facultative tank and a first aerobic tank, the second treatment system is composed of an Anammox tank, the third treatment system is composed of a second facultative tank and a second aerobic tank, microorganism carriers and environmental microorganism preparations are added to the first facultative tank, the first aerobic tank, the Anammox tank, the second facultative tank and the second aerobic tank, the volume of the microorganism carriers in each tank accounts for 1.0%-2.5% of that of each tank, and the volume of the environmental microorganism preparations in each tank accounts for 1.5%-4.0% of that of each tank. After treatment is accomplished through the method for treating the nitrobenzene and the aniline in the wastewater by using the microorganisms, the total nitrogen of the wastewater containing the nitrobenzene and the aniline can be controlled to be smaller than 20mg/L, the COD of the wastewater containing the nitrobenzene and the aniline can be controlled to be smaller than 80mg/L, and other indexes of the wastewater can reach the first-level emission standard of China. Besides the wastewater containing the nitrobenzene and the aniline, the method for treating the nitrobenzene and the aniline in the wastewater by using the microorganisms is further applicable to refractory production wastewater such as pharmaceutical wastewater, fermentation wastewater and food enterprise wastewater, and can also be used for treatment of municipal wastewater and domestic wastewater.
Description
Technical field
The invention belongs to the biochemical technology field, particularly relate to the method for utilizing microbiological treatment Nitrobenzene in Wastewater and aniline.
Background technology
Aniline is the most representative material of aromatic amine, it is a kind of colourless oil liquid with aromatic odour, be widely used in national defence, printing and dyeing, plastics, paint, agricultural chemicals and medicine industry etc., being also simultaneously serious environment pollution and the objectionable impurities that is detrimental to health, is that three of a kind of " carcinogenic, teratogenesis, mutagenesis " cause material.To ecobiotic toxicity, be put in " Chinese environmental priority pollutant Black List " strict control in industrial water drainage due to aniline.
Oil of mirbane, molecular formula is C
5h
6nO
2, relative molecular weight is 123, relative density 1.20, and fusing point is at 5.7 ℃, and boiling point is 210.9 ℃.Oil of mirbane is faint yellow transparent oily liquid, and the Semen Armeniacae Amarum flavor is arranged, water insoluble, is dissolved in most organic solvents such as second is liquor-saturated, ether, benzene.For solvent, manufacture aniline, dyestuff etc.Oil of mirbane in environment mainly, from the waste water and gas in chemical plant, dye processing plant, especially contains a large amount of oil of mirbane in the sewage of aniline dyestuff factory discharge.Oil of mirbane has high stability in water, because its density is greater than water, can sink under water after entering water body, remains unchanged for a long time.Certain solubleness is arranged again in water, so the water pollution meeting caused continues considerable time due to it.
Along with the development of chemical engineering industry, the demand of aniline is obvious ascendant trend, and the amount of entered environment also can get more and more thus, also can be increasing to the murder by poisoning of environment.How to reduce the pollution of aniline to environment, caused gradually people's concern.The nitrobenzene compounds stable chemical performance, the more difficult open loop degraded of phenyl ring, conventional method of wastewater treatment is difficult to make it purify.
The domestic and international processing to aniline waste water at present mainly contains the methods such as physics, chemistry, biology.In view of the character of aniline, oil of mirbane itself, conventional physics, chemical treatment method exist processing costs higher, easily cause secondary pollution, process the problems such as not up to standard, be difficult to obtain large-scale promotion and use.And there is very strong toxicity for microorganism in view of aniline, nitrobenzene waste water, conventional microbial treatment method is difficult to realize its wastewater to reach standard is processed, though perhaps biochemical treatment can realize qualified discharge after doing special pre-treatment, can cause the sharp increase of processing costs and project occupation of land area.
Summary of the invention
When the technical problem to be solved in the present invention is treatment of Nitrobenzene, aniline waste water, adopt conventional biological treatment to be difficult to up to standard, occupation of land, problem that the running cost aspect is higher, a kind of method of utilizing microbiological treatment Nitrobenzene in Wastewater and aniline is provided.
For this reason, the technical solution adopted in the present invention is: the method for utilizing microbiological treatment Nitrobenzene in Wastewater and aniline, it is characterized in that: waste water is altogether through three sections treatment systems, the first treatment system formed by the first oxygen compatibility pool and the first Aerobic Pond respectively, the second treatment system formed by the Anammox pond, the 3rd treatment system formed by the second oxygen compatibility pool, the second Aerobic Pond; And, in the first oxygen compatibility pool, the first Aerobic Pond, Anammox pond, the second oxygen compatibility pool, the second Aerobic Pond, add respectively separately the microbe carrier of volume 1.0% ~ 2.5% and 1.5% ~ 4.0% environmental microorganism preparation.
Further technical scheme arranges first settling tank after the first Aerobic Pond, and described the first settling tank can carry out mud-water separation, sludge reflux to the first oxygen compatibility pool and backflow ratio 1:1 ~ 2; Second settling tank is set after the second Aerobic Pond, and the second settling tank completes mud-water separation work, and mud all is back to the second oxygen compatibility pool.
Technical scheme further, the parameter of described the first oxygen compatibility pool is controlled as water temperature and is controlled 25 ~ 35 ℃, and pH controls 6 ~ 9, dissolved oxygen<0.5mg/L, effective sludge concentration is at 3 ~ 6g/L.
Technical scheme further, the parameter of described the first Aerobic Pond is controlled as 25 ~ 30 ℃ of temperature of reaction, dissolved oxygen 2 ~ 4mg/L.
Technical scheme further, the parameter of described Anammox reaction tank is controlled as 25 ~ 35 ℃ of water temperatures, and pH 6 ~ 9, dissolved oxygen<0.5mg/ L, effectively sludge concentration is at 3 ~ 6g/L.
Technical scheme further, the parameter of described the second oxidation pond is controlled as 25 ~ 30 ℃ of temperature, pH value 7.5 ~ 8.5, dissolved oxygen 2 ~ 4mg/ L.
Technical scheme further, described environmental microorganism preparation is cultivated and is filtered out under oil of mirbane, aniline waste water envrionment conditions, comprise 47 genus 74 in the mixing microorganisms preparation of microorganism, specifically comprise microorganism as follows:
Alcaligenes faecalis Alcaligenes faecalis
Alcaligenes xylosoxydans Alcaligenes xylosoxidans
Bacillus alvei branch genus bacillus
Bacillus coagulans Bacillus coagulans
Bacillus subtilis subtilis
Bacillus leutis bacillus lentus
Bacillus firmus bacillus firmus
Bacillus mycoides shape genus bacillus
Nitrobacter winogradskyi bacterium nitrobacter
Bacillus alcalophilus Alkaliphilic bacillus
Bacillus cereus bacillus cereus
Bacillus licheniformis Bacillus licheniformis
Bacillus pumilus bacillus pumilus
Bacillus spaericus Bacillus sphaericus
Nitrosomonas europaea Nitrosomonas
Nitrosococcus nitrosus nitroso-group nitrococcus
Rhodopseudomonas palustris Rhodopseudomonas palustris
Rhodopseudomonas acidphia rhodopseudomonas acidophilus
The nitrated pseudomonas of Pseudomonas nitroreducens
Thiosphaera pantotropha ball sulphur is thin
The dry achromobacter of Achromobacter xerosis
The richly endowed bacterium of Haloferax denitrificans denitrification salt
Alteromonas denitrificans denitrification replaces Zymomonas mobilis
Thiobacillus denitrificans denitrification thiobacillus
The aurantia Exiguobacterium sp of Exiguobacterium aurantiacum
Eubacterium formicigenerans Eubacterium formicigenerans
Eubacterium nitritogenes Eubacterium nitrotogenes
Eubacterium xylanophilum has a liking for the polyxylose Eubacterium
Aeromonans hydrophila Aeromonas hydrophila
Aeromonas media Aeromonas media
Aeromonans sobria Aeromonas sobria
Pseudomonas alcaligenes Pseudomonas alcaligenes belongs to
Pseudomonas aureofaciens causes yellow pseudomonas
Pseudomonas chlororaphis Pseudomonas chlororaphis
Acetobacter aceti acetic acid acetobacter
The Acetobacter liquefaciens acetobacter that liquefies
Acetobacter xylinum acetobacter xylinum
Paenibacillus gluconolyticus separates the glucan genus bacillus
Lactobacillus fermentum lactobacillus fermentum
Lactobacillus plantarum plant lactobacillus
Lactobacillus alimentarius digests Bacterium lacticum
Lactobacillus amylophillus food starch milk bacillus
Lactobacillus ruminis lactobacillus ruminis
Lactobacillus bervis short lactobacillus
Gluconobacter albidus Qian Jingshi gluconobacter sp
Gluconobacte oxydans glucose oxidation and bacillus
Anaerovibrio glycerini glycerine anaerobism vibrios
Anaerovibrio lipolytica Anaerovibrio lipolytica
Bacillus is supported in Synteophobacter wolinii Wo Shi syntrophism
Bacillus is supported in Synteophobacter pnnigii Fen Shi syntrophism
Pelobacter acetylenicus acetylene occupies the mud bacillus
Pelobacter propionicus produces propionic acid and occupies the mud bacillus
The rotten rare bacillus of Rarobacter faecitabidus slag
Yeast is given birth on Saccharomyces telluris(ground)
The red Zymomonas mobilis of Erythromonas ursincola
Brevibacillus brevis Brevibacillus brevis
Brevibacterium acetylicum acetylene tyrothricin
Brevibacterium casei galactenzyme tyrothricin
The richly endowed bacterium of Haloferax mediterranei Mediterranean Sea salt
Methanobacterium bryantii Bu Shi methagen
Methanobacterium paluster marsh methagen
Methanobacterium uliginosum mire methagen
Methy1coccus capsulatus pod membrane methyl coccus
Cellulomonas biazotes dinitrogen cellulomonas cartae
Cellulomonas fimi Cellulomonase fimi
Thiobacillus novellas(new model thiobacilli)
Thiobacillus thioparus(produces the sulphur thiobacillus)
Thiobacillus thiooxidans thiobacillus thiooxidant
Paenibacillus thiaminlyticus separates sulphur glairin class bud pole bacterium
Beggiatoa alba white Bei Shi sulphur bacterium
Thiodictyon elegans U.S. Open Tennis sulphur bacterium
The purple capsule sulphur of Thiocystis violacea bacterium
Thiorhodococcus minus sulphur rhodococcus
Chlorobium limicola mud is given birth to green bacterium.
In the first paragraph treatment system, double oxygen bacterium in oxygen compatibility pool takes full advantage of former water COD and removes whole nitric nitrogens in water by denitrification, Aerobic Pond is controlled at the nitrous state stage by adjusting the parameters such as pH value, dissolved oxygen, hydraulic detention time, temperature, mud age by the conversion of ammonia nitrogen, nitrite bacteria advantage in mud is increased, for next stage Anammox reaction provides good condition.
Second segment Anammox pond is anaerobic ammonia oxidation reactor.Administer microbial preparation by having added efficient context, rely on its efficient Anammox effect, directly change ammonia nitrogen, nitrite nitrogen into nitrogen, realize the efficient removal of nitrogen, reduced widely the concentration of total nitrogen in the water, thereby reduce the mud burden of back segment denitrogenation equipment, and then reduce the design solvent of biochemical unit, reduce project floor space and construction cost.
In the 3rd section treatment system, the residence time is short, and the second oxygen compatibility pool is nitrogen by Anammox pond metabolic byproducts from microorganisms nitric nitrogen by the denitrification metabolism, removes waste water residue total nitrogen, and this process need add a small amount of organic carbon source.The 3rd section Support Unit as this treatment process, if the Anammox reaction can not realize the removal fully of total nitrogen, can realize the removal to residual nitrogen by the denitrification of this section.The second Aerobic Pond has realized that the biochemical denitrification that-anti-nitration reactions nitrated with tradition such as " short distance nitration-denitrification ", " Simultaneous Nitrification-denitrification ", " aerobic denitrification ", " Anammox " carry out simultaneously reacts simultaneously, thereby reaches efficient, economic removing total nitrogen and remove organic purpose.
After the present invention processes, the total nitrogen of oil of mirbane, aniline waste water can be controlled at below 20mg/L, and COD can be controlled at below 80mg/L, and other indexs also can reach national grade one discharge standard.Except oil of mirbane, aniline waste water, a kind of method of utilizing microbiological treatment oil of mirbane, aniline waste water total nitrogen disclosed in this invention, also be applicable to the factory effluent of the difficult degradations such as pharmacy waste water, fermentation waste water, food enterprise waste water, can also be for the processing of municipal wastewater, sanitary sewage.
The accompanying drawing explanation
Fig. 1 is the present embodiment process flow diagram.
Embodiment
Following examples are test run(s)s that the present invention does in certain waste water treatment engineering, and this test is blocking test, and nonspecific crowd can not contact, understand process of the test.
As shown in Figure 1, form the pretreatment section of the present embodiment with acid-base neutralisation pond, equalizing tank, form the biochemical treatment section of the present embodiment with the first oxygen compatibility pool, the first Aerobic Pond, Anammox pond, the second oxygen compatibility pool, the second Aerobic Pond.
Certain oil of mirbane, aniline waste water, flow is 40m
3/ h, its water quality is as follows: pH 9 ~ 11, aniline 50 ~ 500mg/L, oil of mirbane 70 ~ 150 mg/L, COD 1000 ~ 3000 mg/L, petroleum-type 30 ~ 50 mg/L, SS 80 ~ 150 mg/L, SO
4 2-2500 ~ 7500 mg/L.The concrete technology flow process is as follows: at first oil of mirbane enter the plus-minus neutralization of acid-base neutralisation pond; Water outlet flow to equalizing tank, injects aniline waste water simultaneously, realizes the homogeneous even amount of water quality, reaches the condition that ensures biochemical system steady running; The equalizing tank water outlet flows into the first oxygen compatibility pool, and water temperature is controlled at 25 ~ 35 ℃, and pH controls 6 ~ 9, DO(dissolved oxygen)<0.5mg/L, the effective sludge concentration of MLVSS() at 3 ~ 6g/L; The COD that double oxygen bacterium in pond takes full advantage of in former water removes whole nitric nitrogens in water by denitrification.
The first oxygen compatibility pool water outlet is from flowing into the first Aerobic Pond, control 25 ~ 30 ℃ of reaction parameter temperature, DO(dissolved oxygen) under the biochemical reaction condition that is as the criterion with laboratory analysis of data of the dosage of 2 ~ 4mg/L, phosphorus, remove COD a large amount of in water and suppress the hazardous and noxious substances such as volatile phenol, cyanogen of denitrogenation Pseudomonas growth; The first Aerobic Pond water outlet is carried out mud-water separation from flowing into the first settling tank, and sludge reflux is to hydrolysis acidification pool, sludge reflux ratio 1:1 ~ 2.
The first settling tank water outlet flows into the Anammox reaction tank, administer microbial preparation and high-effective microorganism carrier in conjunction with the commercially available HSBEMBM efficient context added, carry out the Anammox effect of microorganism, by 25 ~ 35 ℃ of Controlling System parameter temperature, pH 6 ~ 9, the DO(dissolved oxygen)<0.5mg/ L, the effective sludge concentration of MLVSS() under the reaction conditionss such as 3 ~ 6g/L, directly change ammonia nitrogen, nitroso-group nitrogen into nitrogen, thereby realize the efficient removal of nitrogen, make the clearance of total nitrogen reach 80% ~ 96%, complete the main denitrogenation task of whole system; The water outlet of Anammox reaction tank flows in the second segment treatment system.
The 3rd section treatment system, as the Support Unit of this technique holder total nitrogen, when the Anammox reaction tank can not be realized the removal fully of total nitrogen, can realize by the denitrification of this unit the removal of residual nitrogen; Wherein the second Aerobic Pond passes through 25 ~ 30 ℃ of temperature, pH value 7.5 ~ 8.5, the DO(dissolved oxygen) under the control of the system parameter such as 2 ~ 4mg/L, realized that the biochemical denitrification that-anti-nitration reactions nitrated with tradition such as " short distance nitration-denitrification ", " Simultaneous Nitrification-denitrification ", " aerobic denitrification ", " Anammox " carry out simultaneously reacts simultaneously, thereby reached efficient, economic denitrogenation and remove organic purpose.
Effluent quality COD after the implementation case is processed
cr<80 mg/L, total nitrogen<15 mg/L, oil of mirbane<2 mg/L, aniline<1 mg/L, prussiate<0.5 mg/L, volatile phenol<0.25mg/L.The effluent quality index reaches or is better than GB16171-2012 country new standard.
Claims (7)
1. utilize the method for microbiological treatment Nitrobenzene in Wastewater and aniline, it is characterized in that: waste water is altogether through three sections treatment systems, the first treatment system formed by the first oxygen compatibility pool and the first Aerobic Pond respectively, the second treatment system formed by the Anammox pond, the 3rd treatment system formed by the second oxygen compatibility pool, the second Aerobic Pond; And, in the first oxygen compatibility pool, the first Aerobic Pond, Anammox pond, the second oxygen compatibility pool, the second Aerobic Pond, add respectively separately the microbe carrier of volume 1.0% ~ 2.5% and 1.5% ~ 4.0% environmental microorganism preparation.
2. the method for claim 1, it is characterized in that: first settling tank is set after the first Aerobic Pond, and described the first settling tank can carry out mud-water separation, sludge reflux to the first oxygen compatibility pool and backflow ratio 1:1 ~ 2; Second settling tank is set after the second Aerobic Pond, and the second settling tank completes mud-water separation work, and mud all is back to the second oxygen compatibility pool.
3. the method for claim 1 is characterized in that: the parameter of described the first oxygen compatibility pool is controlled as water temperature and is controlled 25 ~ 35 ℃, and pH controls 6 ~ 9, dissolved oxygen<0.5mg/L, and effective sludge concentration is at 3 ~ 6g/L.
4. the method for claim 1 is characterized in that: the parameter of described the first Aerobic Pond is controlled as 25 ~ 30 ℃ of temperature of reaction, dissolved oxygen 2 ~ 4mg/L.
5. the method for claim 1 is characterized in that: the parameter of described Anammox reaction tank is controlled as 25 ~ 35 ℃ of water temperatures, and pH 6 ~ 9, dissolved oxygen<0.5mg/ L, and effectively sludge concentration is at 3 ~ 6g/L.
6. the method for claim 1 is characterized in that: the parameter of described the second oxidation pond is controlled as 25 ~ 30 ℃ of temperature, pH value 7.5 ~ 8.5, dissolved oxygen 2 ~ 4mg/ L.
7. as the described method of claim 1-6 any one, it is characterized in that: described environmental microorganism preparation is cultivated and is filtered out under oil of mirbane, aniline waste water envrionment conditions, comprise 47 genus 74 in the mixing microorganisms preparation of microorganism, specifically comprise microorganism as follows:
Alcaligenes faecalis Alcaligenes faecalis
Alcaligenes xylosoxydans Alcaligenes xylosoxidans
Bacillus alvei branch genus bacillus
Bacillus coagulans Bacillus coagulans
Bacillus subtilis subtilis
Bacillus leutis bacillus lentus
Bacillus firmus bacillus firmus
Bacillus mycoides shape genus bacillus
Nitrobacter winogradskyi bacterium nitrobacter
Bacillus alcalophilus Alkaliphilic bacillus
Bacillus cereus bacillus cereus
Bacillus licheniformis Bacillus licheniformis
Bacillus pumilus bacillus pumilus
Bacillus spaericus Bacillus sphaericus
Nitrosomonas europaea Nitrosomonas
Nitrosococcus nitrosus nitroso-group nitrococcus
Rhodopseudomonas palustris Rhodopseudomonas palustris
Rhodopseudomonas acidphia rhodopseudomonas acidophilus
The nitrated pseudomonas of Pseudomonas nitroreducens
Thiosphaera pantotropha ball sulphur is thin
The dry achromobacter of Achromobacter xerosis
The richly endowed bacterium of Haloferax denitrificans denitrification salt
Alteromonas denitrificans denitrification replaces Zymomonas mobilis
Thiobacillus denitrificans denitrification thiobacillus
The aurantia Exiguobacterium sp of Exiguobacterium aurantiacum
Eubacterium formicigenerans Eubacterium formicigenerans
Eubacterium nitritogenes Eubacterium nitrotogenes
Eubacterium xylanophilum has a liking for the polyxylose Eubacterium
Aeromonans hydrophila Aeromonas hydrophila
Aeromonas media Aeromonas media
Aeromonans sobria Aeromonas sobria
Pseudomonas alcaligenes Pseudomonas alcaligenes belongs to
Pseudomonas aureofaciens causes yellow pseudomonas
Pseudomonas chlororaphis Pseudomonas chlororaphis
Acetobacter aceti acetic acid acetobacter
The Acetobacter liquefaciens acetobacter that liquefies
Acetobacter xylinum acetobacter xylinum
Paenibacillus gluconolyticus separates the glucan genus bacillus
Lactobacillus fermentum lactobacillus fermentum
Lactobacillus plantarum plant lactobacillus
Lactobacillus alimentarius digests Bacterium lacticum
Lactobacillus amylophillus food starch milk bacillus
Lactobacillus ruminis lactobacillus ruminis
Lactobacillus bervis short lactobacillus
Gluconobacter albidus Qian Jingshi gluconobacter sp
Gluconobacte oxydans glucose oxidation and bacillus
Anaerovibrio glycerini glycerine anaerobism vibrios
Anaerovibrio lipolytica Anaerovibrio lipolytica
Bacillus is supported in Synteophobacter wolinii Wo Shi syntrophism
Bacillus is supported in Synteophobacter pnnigii Fen Shi syntrophism
Pelobacter acetylenicus acetylene occupies the mud bacillus
Pelobacter propionicus produces propionic acid and occupies the mud bacillus
The rotten rare bacillus of Rarobacter faecitabidus slag
Yeast is given birth on Saccharomyces telluris(ground)
The red Zymomonas mobilis of Erythromonas ursincola
Brevibacillus brevis Brevibacillus brevis
Brevibacterium acetylicum acetylene tyrothricin
Brevibacterium casei galactenzyme tyrothricin
The richly endowed bacterium of Haloferax mediterranei Mediterranean Sea salt
Methanobacterium bryantii Bu Shi methagen
Methanobacterium paluster marsh methagen
Methanobacterium uliginosum mire methagen
Methy1coccus capsulatus pod membrane methyl coccus
Cellulomonas biazotes dinitrogen cellulomonas cartae
Cellulomonas fimi Cellulomonase fimi
Thiobacillus novellas(new model thiobacilli)
Thiobacillus thioparus(produces the sulphur thiobacillus)
Thiobacillus thiooxidans thiobacillus thiooxidant
Paenibacillus thiaminlyticus separates sulphur glairin class bud pole bacterium
Beggiatoa alba white Bei Shi sulphur bacterium
Thiodictyon elegans U.S. Open Tennis sulphur bacterium
The purple capsule sulphur of Thiocystis violacea bacterium
Thiorhodococcus minus sulphur rhodococcus
Chlorobium limicola mud is given birth to green bacterium.
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| CN109504642A (en) * | 2019-01-21 | 2019-03-22 | 中国科学院成都生物研究所 | One plant of denitrifying bacterium and its application |
| CN109554303A (en) * | 2017-09-27 | 2019-04-02 | 中国石油化工股份有限公司 | A kind of aurantia Exiguobacterium sp and preparation and its application |
| CN110272165A (en) * | 2019-06-10 | 2019-09-24 | 环亚(天津)环保科技有限公司 | A kind of pharmaceutical wastewater processing system and technique |
| CN111479783A (en) * | 2017-12-19 | 2020-07-31 | 科思创德国股份有限公司 | Continuous process for reducing the amount of organic compounds in wastewater |
| CN111479784A (en) * | 2017-12-19 | 2020-07-31 | 科思创德国股份有限公司 | Biodegradation of organic pollutants by halophilic archaea |
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| CN104293842A (en) * | 2014-10-21 | 2015-01-21 | 镇江拜因诺生物科技有限公司 | Method for producing grease through fermentation by utilizing vinegar residue waste |
| CN107396770A (en) * | 2017-08-15 | 2017-11-28 | 吴洪生 | A kind of biological method that can reduce agriculture forest and husbandry greenhouse gas emission and application |
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