CN109574197A - A kind of device and method handling aniline waste water - Google Patents
A kind of device and method handling aniline waste water Download PDFInfo
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- CN109574197A CN109574197A CN201811593601.2A CN201811593601A CN109574197A CN 109574197 A CN109574197 A CN 109574197A CN 201811593601 A CN201811593601 A CN 201811593601A CN 109574197 A CN109574197 A CN 109574197A
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- waste water
- aniline waste
- aniline
- reactor
- ozone
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/23—O3
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of device and methods for handling aniline waste water.The device of this processing aniline waste water, including reactor, reactor are equipped with water inlet pipe and outlet pipe；Bottom aeration tube and middle layer aeration tube with aerator are respectively equipped in reactor, bottom aeration tube and middle layer aeration tube are connected with ozone generator respectively；Aerator is the combination of one or both of micro porous aeration head or nanometer aeration device；ORP instrument, pH instrument are equipped in reactor；Reactor is also connected with lye throwing device and acid solution throwing device respectively；Lye throwing device, acid solution throwing device, ORP instrument, pH instrument, ozone generator are connected with PLC automatic controller respectively.A kind of method using device processing aniline waste water is also disclosed simultaneously.Processing method of the invention can lengthen the time of contact with aniline molecule, improve the service efficiency of ozone molecule, and then oxidative degradation aniline waste water, discharge standard is fully achieved in water energy out.
Description
Technical field
The present invention relates to aniline waste water process fields, and in particular to a kind of device and method for handling aniline waste water.
Background technique
Aniline is also known as aniline, aniline oil, aminobenzene, molecular formula: C6H7N.Colourless oil liquid.- 6.3 DEG C of fusing point, boiling
184 DEG C of point, relative density 1.02 (20/4 DEG C), relative molecular weight 93.128 are heated to 370 DEG C of decomposition.It is slightly dissolved in water, is soluble in
The organic solvents such as ethyl alcohol, ether.Aniline is one of most important amine substance, mainly for the manufacture of dyestuff, drug, resin, also
It may be used as thiofide etc..Itself also can be used as black dyes use, and derivative methyl orange can be used as soda acid
The indicator of titration.
Aniline is one of most important intermediate in dye industry, can be used for manufacturing in dye industry Acid Ink Blue G,
Acidic intermedium BS, acid light yellow, direct orange S, direct pink, indigo, disperse yellow brown, cationic pink fg and reactive brilliant red X-SB
Deng；Have in terms of organic pigment for manufacturing bronze red, bronze red g, pigment scarlet powder, the red, nigrosine of phenol cyanines etc..Aniline is in printing and dyeing work
Dyestuff nigrosine is used in industry.For producing many insecticides, fungicide such as DDV, nitrofen, propachlor in pesticide industry
Deng can derive N- alkyl benzene amine, alkyl benzene amine, ortho-nitraniline, cyclohexylamine etc. by aniline, can be used as fungicide sulfonat, mix
Kind spirit, insecticide Hostathion, pyridaphethione, quinalphos, the intermediate of herbicide alachlor, hexazinone, imazaquin etc..Benzene
Amine is the important source material of rubber chemicals, for manufacturing antioxidant A, antioxidant d, anti-aging agent RD and antioxidant 4010, promotor
M, 808, D and CA etc.；Also it can be used as the raw material of medical sulfa drug, while being also in production fragrance, plastics, varnish, film etc.
Mesosome；And it can be used as the stabilizer in explosive, the anti-knock agent in gasoline and be used as solvent；It is other to be also used as manufacture to benzene
Diphenol, 2-phenylindone etc..
The conventional method of processing aniline waste water mainly has physical method (absorption, extraction, UF membrane etc.), chemical oxidization method (light
Catalysis oxidation, supercritical water oxidation method, chlorine oxidation process, sonication, electrochemical oxidation process etc.), bioanalysis (often
Advise anaerobism, Aerobic Process for Treatment, pressurization biochemistry, efficient degrading bacteria screening separation) etc..With the development of wastewater processing technology, state at present
It is inside and outside to have been developed some new aniline waste water processing techniques, such as ultrasound light-catalyzed method, acoustoelectric combined technology, absorption-is bis-
Catalytic oxidation technologies, electron beam irradiation degradation technique.It can be seen that for the processing technique of aniline waste water, each conventional process
Method all haves the defects that different degrees of.Thus, low cost, efficient aniline waste water processing technique and the gesture that tries out is explored to exist
It must go.
Summary of the invention
Of the existing technology in order to overcome the problems, such as, one of the objects of the present invention is to provide a kind of processing aniline waste waters
Device, the second object of the present invention are to provide a kind of method using device processing aniline waste water.
The technical solution used in the present invention is:
The present invention provides a kind of devices for handling aniline waste water.
A kind of device handling aniline waste water, including reactor, reactor are equipped with water inlet pipe and outlet pipe；
Bottom aeration tube and middle layer aeration tube with aerator are respectively equipped in reactor, bottom aeration tube and middle layer expose
Tracheae is connected with ozone generator respectively；Aerator is one or both of micro porous aeration head or nanometer aeration device group
It closes；
ORP (oxidation-reduction potential) instrument, pH instrument are equipped in reactor；
Reactor is also connected with lye throwing device and acid solution throwing device respectively；
Lye throwing device, acid solution throwing device, ORP instrument, pH instrument, ozone generator are automatically controlled with PLC respectively
Device is connected.
Preferably, it is this processing aniline waste water device in, raw water inlet, promoted water pump, produce water ga(u)ge successively with
Water inlet pipe is connected, and water inlet pipe is also connected with pressure gauge.
Preferably, in the device of this processing aniline waste water, ozone generating-device is smelly using source of oxygen or air-source manufacture
Oxygen.
The present invention also provides a kind of methods for handling aniline waste water.
A method of processing aniline waste water, is passed through in above-mentioned device after pre-processing aniline waste water, and aniline is adjusted
The pH value of waste water then passes to ozone, carries out ozone Oxidation Treatment.
Preferably, it is this processing aniline waste water method in, aniline waste water pretreatment for by aniline waste water carry out slagging-off and
Remove suspended matter processing.
Preferably, it in the method for this processing aniline waste water, under the control of pH instrument, by adding lye or acid solution, adjusts
Save the pH value of aniline waste water；It is further preferred that lye is sodium hydroxide solution, acid solution is sulfuric acid solution.
Preferably, in the method for this processing aniline waste water, the pH value for adjusting aniline waste water is 3~11；Further preferably
, the pH value for adjusting aniline waste water is 5~9.
Preferably, in the method for this processing aniline waste water, the additional amount of ozone is controlled by ORP instrument.
Preferably, in the method for this processing aniline waste water, the additional amount of ozone is 20g/m3~300g/m3Aniline waste water.
Preferably, in the method for this processing aniline waste water, the time of ozone Oxidation Treatment reaction is 5min~90min,
End after being aoxidized with aniline molecule.
Ozone Oxidation Treatment organic wastewater mechanism of the present invention is described as follows below: during processing, in ozone and water
Very complicated with the interaction of pollutant component, the interaction process in liquid phase between ozone and pollutant component can be by with next system
Column unit process is urged: ozone is diffused into interphase interface from gas phase, when the reactant concentration near the interface in two-phase is identical
Physical equilibrium will be established in interface, ozone diffuses into liquid phase from interphase interface, is chemically reacted in the liquid phase；
Due to concentration gradient, cause to be initially present with the substance diffusion in liquid phase and in liquid range reactant diffusion.By each
Apolar substance can be changed into polar substances, by high score with Organic substance in water qualitative response by kind materialization and biochemical action, ozone
Sub- organic matter is changed into polar substances, and macromolecule organic is changed into low molecule organic matter, and the organic micelle of hydrophily is changed
The inorganic matter of filtering is easily agglomerated for hydrophobicity.In water, ozone and reacting for organic matter are very complicated, and ozone can be more with oxidative degradation
Kind organic matter, in dilute aqueous solution, the ozone oxidation reaction of aromatic compound is divided into two stages, and first stage reaction is fast,
Oxygen demand is big, can make former mass degradation, and armaticity disappears.Second stage reaction is slow, and consumption ozone amount is small, mainly to aliphatic chemical combination
The ozonisation of object.To alkene organic matter containing double bonds, ozone is easy to carry out, the reaction of 1,3- dipolar addition.Specific reactional equation
Formula is as follows: organic matter+zO3→ intermediate product → product.
The beneficial effects of the present invention are:
The present invention uses Ozonation, using micro-hole aerator or nanometer aeration device as diffuser, increases ozone
The contact area of molecule and aniline molecule, while the bubble that micro-hole aerator or nanometer aeration device release is tiny, on
Raising speed rate is low, can lengthen the time of contact with aniline molecule, improves the service efficiency of ozone molecule, and then oxidative degradation aniline
Waste water, discharge standard is fully achieved in water energy out.
Compared with prior art, processing method of the invention is easy to operate, convenient, quick aniline degradation.It is useless to handle aniline
The concentration of water is from low concentration to high concentration；PH value in reaction is in extensive range, almost covers all pH ranges；Reaction time according to
Waste strength difference slightly length.Processing method of the present invention is high-efficient, and effect is good, is discharged without secondary pollution, degradation efficiency height, out
Effluent criteria is fully achieved in water energy.And be conducive to the transformation and upgrade of existing aniline waste water pollution reducing facility, it is a kind of " environment
The high-level oxidation technology of close friend ".
Detailed description of the invention
Fig. 1 is the schematic diagram of present invention processing aniline waste water device.
Specific embodiment
The contents of the present invention are described in further detail below by way of specific embodiment.Original used in embodiment
Material/device unless otherwise specified, can be obtained from routine business approach.
Attached drawing 1 is the schematic diagram of present invention processing aniline waste water device.In Fig. 1,1- reactor, 2- bottom aeration tube, 3-
Bottom aerator, the middle layer 4- aeration tube, the middle layer 5- aerator, 6- outlet pipe, 7- lye throwing device, 8- acid solution add dress
It sets, 9-ORP instrument, 10-pH instrument, 11- ozone generator, 12-PLC automatic controller, 13- pressure gauge, 14- water inlet pipe, 15-
Water ga(u)ge is produced, 16- promotes water pump, 17- raw water inlet.Processing unit example of the invention is made into one below with reference to Fig. 1
Walk explanation.
The present embodiment handles the device of aniline waste water, including reactor 1, and reactor 1 is equipped with water inlet pipe 14 and outlet pipe 6；
The bottom aeration tube 2 with bottom aerator 3, and the middle layer aeration tube 4 with middle layer aerator 5, bottom are equipped in reactor 1
Layer aeration tube 2 and middle layer aeration tube 4 are connected with ozone generator 11 respectively；ORP instrument 9, pH instrument are equipped in reactor 1
10；Reactor 1 is also connected with lye throwing device 7 and acid solution throwing device 8 respectively；Lye throwing device 7, acid solution add dress
8, ORP instrument 9, pH instrument 10, ozone generator 11 is set to be connected with PLC automatic controller 12 respectively.Raw water inlet 17 mentions
Lift pump 16, production water ga(u)ge 15 are successively connected with water inlet pipe 14, and water inlet pipe 14 is also connected with pressure gauge 13.Bottom aeration
Device or middle layer aerator can be micro porous aeration head either nanometer aeration device.The present embodiment uses two promotion water
Pump.
The method for carrying out aniline waste water processing using processing unit is as follows:
It is first simply removed the gred to aniline waste water and suspended matter is handled, then under the control of pH in-line meter, to aniline
NaOH solution or H are added in waste water2SO4Solution adjusts aniline waste water pH to 5-9；Then the ozone of ozone generator manufacture is logical
Micro porous aeration head or nanometer aeration device are crossed, the device that ozone is uniformly discharged into aniline waste water carries out release ozone (every 1m3
Ozone 20g~300g is added in aniline waste water), after pneumatic stirring reaction occurs simultaneously during ozone release, reaction time root
How much controlled according to the concentration of aniline in aniline waste water, until react after aniline molecule oxidation terminates, i.e. completion processing.
It using the aerator of multilayer, ozone can be improved and discharge stage by stage discharges by different level, improve ozone oxidation ability
And efficiency.
ORP oxidation reduction potential control instrument is arranged in device, can be existed according to the ozone oxidation process situation in reactor
ORP instrument is shown, and feedback signal is to PLC automatic controller simultaneously, and PLC is according to the ORP value height fed back, automatic adjustment
The control valve of ozone generator, and then ozone burst size is automatically adjusted, energy consumption is reduced, oxidation efficiency is improved, not will lead to ozone
Waste, also controls treatment effeciency.
PH On-line Control instrument is arranged in device, can be shown according to the pH value in reactor in pH instrument, and anti-simultaneously
Feedback signal is to PLC automatic controller, and PLC is according to the pH value height fed back, the Adding medicine control valve of automatic adjustment acid or alkali,
And then soda acid dosage is automatically adjusted, the pH of reaction is automatically adjusted, in the pH value to optimal reaction range for making reaction, can be dropped
Low energy consumption improves oxidation efficiency, not will lead to ozone waste, also controls treatment effeciency.
Application examples 1
Using the device of the invention processing Shandong chemical plant aniline waste water, used in aerator be micropore expose
Gas head, i.e. bottom aerator and middle layer aerator are micro porous aeration head.
The color of raw water is dark-brown.200mL raw water water sample is handled, after Air Exposure 5min, water sample appearance becomes shallow
Brown；After Air Exposure 10min, water sample appearance becomes yellow green；After Air Exposure 30min, water sample appearance becomes close colourless
It is bright.
The test result that application examples 1 handles aniline waste water is as shown in table 1.
The test result of 1 application examples 1 of table processing aniline waste water
From test data and test result it can be concluded that being directed to the processing of amino benzene analog waste water, using of the invention smelly
Oxygen oxidation technology has fairly obvious treatment effeciency, and the reaction time is short, and contaminant removal efficiency is high, and aniline removal rate can reach
99.74% or more, discharge standard can be reached.
Application examples 2
Using the device of the invention processing Guangdong Zhuhai chemical plant contain aniline waste water, used in aerator be
Nanometer aeration device, i.e. bottom aerator and middle layer aerator are nanometer aeration device.
The color of raw water is khaki.Raw water water sample 250mL is taken, pH to 7, after 60min at aeration, water sample appearance are adjusted
Become light yellow.Treated, and water sample reaches effluent standard.
The test result that application examples 2 handles aniline waste water is as shown in table 2.
The test result of 2 application examples 2 of table processing aniline waste water
| Index | pH | COD | Aniline |
| Raw water quality | 7.58 | 9870mg/L | 25mg/L |
| After Air Exposure 60min | 8.25 | 125mg/L | 0.1mg/L |
| Removal rate | - | 98.73% | 99.6% |
Claims (9)
1. a kind of device for handling aniline waste water, it is characterised in that:
Including reactor, reactor is equipped with water inlet pipe and outlet pipe；
Bottom aeration tube and middle layer aeration tube with aerator, bottom aeration tube and middle layer aeration tube are respectively equipped in reactor
It is connected respectively with ozone generator；Aerator is the combination of one or both of micro porous aeration head or nanometer aeration device；
ORP instrument, pH instrument are equipped in reactor；
Reactor is also connected with lye throwing device and acid solution throwing device respectively；
Lye throwing device, acid solution throwing device, ORP instrument, pH instrument, ozone generator respectively with PLC automatic controller phase
Connection.
2. a kind of device for handling aniline waste water according to claim 1, it is characterised in that: raw water inlet promotes water
Pump, production water ga(u)ge are successively connected with water inlet pipe, and water inlet pipe is also connected with pressure gauge.
3. a kind of method for handling aniline waste water, it is characterised in that: after pre-processing aniline waste water, be passed through claims 1 or 2 institute
In the device stated, the pH value of aniline waste water is adjusted, then passes to ozone, carries out ozone Oxidation Treatment.
4. a kind of method for handling aniline waste water according to claim 3, it is characterised in that: aniline waste water pretreatment is by benzene
Amine waste water is removed the gred and is removed suspended matter processing.
5. a kind of method for handling aniline waste water according to claim 3, it is characterised in that: under the control of pH instrument, pass through
Lye or acid solution are added, the pH value of aniline waste water is adjusted.
6. according to a kind of method for handling aniline waste water of claim 3 or 5, it is characterised in that: adjust the pH of aniline waste water
Value is 3~11.
7. a kind of method for handling aniline waste water according to claim 3, it is characterised in that: control ozone by ORP instrument
Additional amount.
8. according to a kind of method for handling aniline waste water of claim 3 or 7, it is characterised in that: the additional amount of ozone is
20g/m3~300g/m3Aniline waste water.
9. according to claim 3 it is a kind of handle aniline waste water method, it is characterised in that: ozone Oxidation Treatment reaction when
Between be 5min~90min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593601.2A CN109574197A (en) | 2018-12-25 | 2018-12-25 | A kind of device and method handling aniline waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811593601.2A CN109574197A (en) | 2018-12-25 | 2018-12-25 | A kind of device and method handling aniline waste water |
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| CN109574197A true CN109574197A (en) | 2019-04-05 |
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| CN201811593601.2A Pending CN109574197A (en) | 2018-12-25 | 2018-12-25 | A kind of device and method handling aniline waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113880228A (en) * | 2021-08-20 | 2022-01-04 | 苏州盛虹环保科技有限公司 | Treatment process of aniline compounds in printing and dyeing wastewater |
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