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CN102464408A - Method for treating nitrobenzene wastewater - Google Patents

Method for treating nitrobenzene wastewater Download PDF

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Publication number
CN102464408A
CN102464408A CN2011103207471A CN201110320747A CN102464408A CN 102464408 A CN102464408 A CN 102464408A CN 2011103207471 A CN2011103207471 A CN 2011103207471A CN 201110320747 A CN201110320747 A CN 201110320747A CN 102464408 A CN102464408 A CN 102464408A
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CN
China
Prior art keywords
nitrobenzene
engineering bacteria
waste water
wastewater
treatment
Prior art date
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.)
Pending
Application number
CN2011103207471A
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Chinese (zh)
Inventor
雷春生
雷思宇
龙海燕
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CHANGZHOU YAHUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Original Assignee
CHANGZHOU YAHUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Priority to CN2011103207471A priority Critical patent/CN102464408A/en
Publication of CN102464408A publication Critical patent/CN102464408A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method for treating nitrobenzene wastewater, belonging to the technical field of sewage treatment in environmental protection. The method adopts nitrobenzene engineering bacteria, inorganic oxidant and catalyst to compound a composite medicament, and the mass percentages are respectively as follows: 5-20% of nitrobenzene engineering bacteria, 30-70% of inorganic oxidant and 20-30% of catalyst. Adding the compounded complexing agent into nitrobenzene wastewater with the concentration of 10-1000 mg/L, wherein the mass ratio of the added complexing agent to the wastewater is 1: 100-1: 1000, continuously stirring at the rotating speed of not less than 250r/min for 10-30 min, aerating for 0.5-2 hours, then carrying out air flotation treatment, and scraping residues floating on the surface of the wastewater by using a residue scraper, so that the concentration of nitrobenzene in the wastewater can be reduced to below 0.5mg/L from 10-1000 mg/L, and the removal rate of nitrobenzene is up to more than 99.9%. The method has the characteristics of simple operation, economy, high efficiency, no precipitation, no secondary pollution, suitability for removing the nitrobenzene in the wastewater and the like.

Description

A kind of method of treatment of Nitrobenzene waste water
Technical field
The present invention relates to the processing of the nitrobenzene-containing waste water that medicine, agricultural chemicals, dyestuff, explosive and other Chemicals produce, also applicable to the removal of hazardous and noxious substances high-performance bios such as aniline.
Background technology
The technology of domestic and international application in nitrobenzene waste water is handled mainly contains method and technologies such as desorption method, biological filter process, Fe-Cu catalytic reduction method, iron reduction method, three-dimensional electrode electrolysis at present; Desorption method is the suspended substance of removing earlier in the waste water; To filtrate in temperature is under 20~250BV/h condition with flow for 2 ℃~45 ℃, and absorption effluent is made desorbing agent with formaldehyde or ethanol; With the bad temper thomel regeneration of having adsorbed oil of mirbane; Though this method can realize the reuse of desorbing agent, but operating process is loaded down with trivial details, desorption efficient was not high when temperature was higher.The main effect of iron carbon reduction method is to utilize iron under acidic conditions, and the reductibility of utilizing iron makes it to be converted into amino to the reaction of nitro generation surface reduction.This method is no problem on principle, but also is not very desirable in the engineering practice, should be the reaction needed acidic conditions, and the iron consumption is big, thereby sludge quantity is also big, and problem such as harden in addition.
The method of domestic treatment of Nitrobenzene mainly concentrates on waste water and chemical industry processing aspect; It is said that for example notification number is CN1168865, name is called " method of wastewater treatment of oil of mirbane shortening system PARA AMINOPHENOL " patent, and oil of mirbane shortening system PARA AMINOPHENOL (PAP) technology is mainly used in wastewater treatment, at first takes evaporation concentration control waste water proportion to appropriate value; Make the PAP supersaturation and separate out; After with activated carbon treatment, be water white transparency and evaporate the steam condensate that, the filtrating that leaches behind the PAP is handled with ydrogen peroxide 50, separates out most of organism; Use activated carbon decolorizing again, remove remaining almost whole organism; Notification number is said for the CN101514044 name is called " a kind of method of treating low-concentration nitrobenzene waste water by means of three-phase fluidization " patent; It is characterized in that in the three-phase water processing reactor, for concentration less than the 500mg/L nitrobenzene waste water, with an organic solvent and ozone; Carry out extracting and enriching-ozonation treatment simultaneously; Though this method of wastewater treatment is efficient, low consumption, can only handle the nitrobenzene waste water of lower concentration, be unfavorable for the industry popularization; It is said that notification number is CN101811769A, name is called " method of a kind of liquid/liquid two-phase ozone Oxidation Treatment parachloronitrobenzene waste water " patent; For containing lower concentration parachloronitrobenzene waste water; Use nontoxic inertia perfluoro solvent as organic solvent, under water/organic solvent two-phase fluidization state, carry out parachloronitrobenzene in extracting and enriching-ozone oxidation degraded water body simultaneously; This method efficient low-consume, easy to operate is not removed the waste water that contains high nitrobenzene but be suitable for.
Summary of the invention
The objective of the invention is for overcoming the deficiency of prior art, a kind of nitrobenzene waste water treatment process that is applicable to high density is provided.The present invention has simple to operate, and economical and efficient does not have deposition and produces, and can not cause secondary pollution, is applicable to that the oil of mirbane ionic is removed in the waste water.
The technical scheme that the present invention adopts is; This method adopts oil of mirbane engineering bacteria, an inorganic oxidizer and catalyzer to be re-dubbed compound, and its mass percent is respectively: oil of mirbane engineering bacteria 5%~20%, an inorganic oxidizer 30%~70%, catalyzer 20%~30%.
Described oil of mirbane engineering bacteria is one or both in tryptophan gene engineering bacteria, Perchlorobenzene engineering bacteria, hexanitrobenzene engineering bacteria, colibacillus engineering, 2CNB and the 3CNB engineering bacteria.
Described an inorganic oxidizer is one or both in calcium superoxide, Na2Fe04, the potassium ferrate.
Described catalyzer is one or both compositions in chromium trioxide, nickel oxide, the Vanadium Pentoxide in FLAKES.
By the total mass per-cent that accounts for compound: tryptophan gene engineering bacteria 5%~10%; Perchlorobenzene engineering bacteria 5%~15%, hexanitrobenzene engineering bacteria 10%~20%, colibacillus engineering 5%~10%; 2CNB engineering bacteria 10%~20%, 3CNB engineering bacteria 10%~20%; Calcium superoxide 30%~50%, Na2Fe04 30%~60%, potassium ferrate 30%~50%; Chromium trioxide 20%~25%, nickel oxide 20%~30%, Vanadium Pentoxide in FLAKES 25%~30%.
Nitrobenzene waste water treatment process of the present invention has lower volatility in use; The recombiner that only needs aforementioned proportion is joined joins in the nitrobenzene waste water that concentration is 10~1000mg/L, and the compound of adding and the mass ratio of waste water are 1:100~1:1000, constantly stir to be not less than the 250r/min rotating speed; Churning time is 10~30min; Aeration 0.5~2 hour carries out air supporting again and handles, and the residue that will float over the waste water surface with slag scraper strikes off.The inventive method can make the nitro phenenyl concentration in the waste water drop to below the 0.5mg/L from 10~1000mg/L, and the oil of mirbane clearance is up to more than 99.9%.
Embodiment
The present invention adopts oil of mirbane engineering bacteria, an inorganic oxidizer and catalyzer to be re-dubbed compound, and its mass percent does; Oil of mirbane engineering bacteria 5%~20%, an inorganic oxidizer 30%~70%, catalyzer 20%~30%.
Described oil of mirbane engineering bacteria is one or both in tryptophan gene engineering bacteria, Perchlorobenzene engineering bacteria, hexanitrobenzene engineering bacteria, colibacillus engineering, 2CNB and the 3CNB engineering bacteria.
Described an inorganic oxidizer is one or both in calcium superoxide, Na2Fe04, the potassium ferrate.
Described catalyzer is one or both in chromium trioxide, nickel oxide, the Vanadium Pentoxide in FLAKES.
By the total mass per-cent that accounts for compound: tryptophan gene engineering bacteria 5%~10%; Perchlorobenzene engineering bacteria 5%~15%, hexanitrobenzene engineering bacteria 10%~20%, colibacillus engineering 5%~10%; 2CNB engineering bacteria 10%~20%, 3CNB engineering bacteria 10%~20%; Calcium superoxide 30%~50%, Na2Fe04 30%~60%, potassium ferrate 30%~50%; Chromium trioxide 20%~25%, nickel oxide 20%~30%, Vanadium Pentoxide in FLAKES 25%~30%.
The method of treatment of high concentration nitrobenzene waste water is: the recombiner that aforementioned proportion is joined joins in the nitrobenzene waste water that concentration is 10~1000mg/L; The compound that adds and the mass ratio of waste water are 1:100~1:1000; Constantly stir to be not less than the 250r/min rotating speed, churning time is 10~30min, aeration 0.5~2 hour; Carry out air supporting again and handle, the residue that will float over the waste water surface with slag scraper strikes off.The inventive method can make the nitro phenenyl concentration in the waste water drop to below the 0.5mg/L from 10~1000mg/L.
Instance 1
To with the compound of Perchlorobenzene engineering bacteria 5%, potassium ferrate 30%, calcium superoxide 40% and nickel oxide 25% proportioning, certain drugmaker's waste water be handled by accounting for compound total mass per-cent; Nitro phenenyl concentration is 897mg/L in the waste water; The recombiner that adds and the mass ratio of waste water are 1:826, stir 20min, aeration 1 hour with the 280r/min rotating speed; Carrying out air supporting again handles; The residue that will float over the waste water surface with slag scraper strikes off, and nitro phenenyl concentration is 0.3mg/L in the processed waste water, and clearance is up to 99.97%.
Instance 2
Will be by accounting for compound total mass per-cent, the compound of tryptophan gene engineering bacteria 10%, hexanitrobenzene engineering bacteria 5%, calcium superoxide 65% and chromium trioxide 20% proportioning is handled certain wastewater from chemical industry; Nitro phenenyl concentration is 500mg/L in the waste water; The compound that adds and the mass ratio of waste water are 1:729, stir 25min, aeration 1.5 hours with the 290r/min rotating speed; Carrying out air supporting again handles; The residue that will float over the waste water surface with slag scraper strikes off, and handling the back nitro phenenyl concentration is 0.05mg/L, and clearance is up to 99.99%.
Instance 3
Will be by accounting for compound total mass per-cent, the compound of hexanitrobenzene engineering bacteria 20%, Na2Fe04 50% and nickel oxide 30% proportioning is handled certain pharmacy waste water; Nitro phenenyl concentration is 382mg/L in the waste water, and the compound of adding and the mass ratio of waste water are 1:500, stirs 10min with the 310r/min rotating speed; Aeration 0.5 hour carries out air supporting again and handles, and the residue that will float over the waste water surface with slag scraper strikes off; Handling the back nitro phenenyl concentration is 0.05mg/L, and clearance is up to 99.98%.
Instance 4
Will be by accounting for compound total mass per-cent, the compound of 2CNB engineering bacteria 10%, potassium ferrate 70% and chromium sesquioxide 20% proportioning is handled certain pharmacy waste water; Nitro phenenyl concentration is 186mg/L in the waste water; The compound that adds and the mass ratio of waste water are 1:328, stir 18min, aeration 0.9 hour with the 310r/min rotating speed; Carrying out air supporting again handles; The residue that will float over the waste water surface with slag scraper strikes off, and handling the back nitro phenenyl concentration is 0.04mg/L, and clearance is up to 99.97%.
Instance 5
Will be by accounting for compound total mass per-cent, the compound of 3CNB engineering bacteria 15%, calcium superoxide 30%, Na2Fe04 30% and nickel oxide 25% proportioning is handled certain pharmacy waste water; Nitro phenenyl concentration is 87mg/L in the waste water; The compound that adds and the mass ratio of waste water are 1:258, stir 11min, aeration 1 hour with the 330r/min rotating speed; Carrying out air supporting again handles; The residue that will float over the waste water surface with slag scraper strikes off, and handling the back nitro phenenyl concentration is 0.03mg/L, and clearance is up to 99.97%.
Instance 6
Will be by accounting for compound total mass per-cent, the compound of Perchlorobenzene engineering bacteria 15%, colibacillus engineering 10%, calcium superoxide 45% and Vanadium Pentoxide in FLAKES 30% proportioning is handled certain wastewater from chemical industry; Nitro phenenyl concentration is 20mg/L in the waste water; The compound that adds and the mass ratio of waste water are 1:100, stir 0.5min, aeration 0.5 hour with the 330r/min rotating speed; Carrying out air supporting again handles; The residue that will float over the waste water surface with slag scraper strikes off, and handling the back nitro phenenyl concentration is 0.007mg/L, and clearance is up to 99.97%.

Claims (4)

1. the method for a treatment of Nitrobenzene waste water; It is characterized in that: this method adopts oil of mirbane engineering bacteria, an inorganic oxidizer and catalyzer to be re-dubbed compound; Its mass percent is respectively: oil of mirbane engineering bacteria 5%~20%, an inorganic oxidizer 30%~70%, catalyzer 20%~30%.
2. the method for a kind of treatment of Nitrobenzene waste water according to claim 1 is characterized in that: described oil of mirbane engineering bacteria is one or both in tryptophan gene engineering bacteria, Perchlorobenzene engineering bacteria, hexanitrobenzene engineering bacteria, colibacillus engineering, 2CNB and the 3CNB engineering bacteria.
3. the method for a kind of treatment of Nitrobenzene waste water according to claim 1 is characterized in that: described an inorganic oxidizer is to get one or both in calcium superoxide, Na2Fe04, the potassium ferrate.
4. the method for a kind of treatment of Nitrobenzene waste water according to claim 1 is characterized in that: described catalyzer is one or both compositions in chromium trioxide, nickel oxide, the Vanadium Pentoxide in FLAKES.
 
CN2011103207471A 2011-10-20 2011-10-20 Method for treating nitrobenzene wastewater Pending CN102464408A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107214188A (en) * 2017-06-02 2017-09-29 常州大学 A kind of method of BHC in potassium ferrate collaboration calper calcium peroxide degraded soil elution liquid
CN111908584A (en) * 2020-07-08 2020-11-10 同济大学 A kind of multifunctional ferrate compound agent and its application in water pollution treatment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1492939B1 (en) * 2002-03-25 2008-05-14 Priester, Lamar E., III In situ biodegradation of subsurfacecontaminants by injection of phosphate
CN101319194A (en) * 2007-10-24 2008-12-10 大连理工大学 Rhodotorula glucosa with new metabolic properties and its application in biodegradation
CN102070237A (en) * 2010-11-26 2011-05-25 常州大学 COD degradation agent for removing sulfamide from industrial wastewater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1492939B1 (en) * 2002-03-25 2008-05-14 Priester, Lamar E., III In situ biodegradation of subsurfacecontaminants by injection of phosphate
CN101319194A (en) * 2007-10-24 2008-12-10 大连理工大学 Rhodotorula glucosa with new metabolic properties and its application in biodegradation
CN102070237A (en) * 2010-11-26 2011-05-25 常州大学 COD degradation agent for removing sulfamide from industrial wastewater

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
盛连喜 等: "硝基苯类化合物微生物降解研究进展", 《应用生态学报》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107214188A (en) * 2017-06-02 2017-09-29 常州大学 A kind of method of BHC in potassium ferrate collaboration calper calcium peroxide degraded soil elution liquid
CN111908584A (en) * 2020-07-08 2020-11-10 同济大学 A kind of multifunctional ferrate compound agent and its application in water pollution treatment

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Application publication date: 20120523