CN109607895A - A kind of processing method of the wastewater from chemical industry containing phenyl amines - Google Patents
A kind of processing method of the wastewater from chemical industry containing phenyl amines Download PDFInfo
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- CN109607895A CN109607895A CN201811454309.2A CN201811454309A CN109607895A CN 109607895 A CN109607895 A CN 109607895A CN 201811454309 A CN201811454309 A CN 201811454309A CN 109607895 A CN109607895 A CN 109607895A
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- phenyl amines
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- 239000002351 wastewater Substances 0.000 title claims abstract description 80
- 150000001448 anilines Chemical class 0.000 title claims abstract description 53
- 239000000126 substance Substances 0.000 title claims abstract description 46
- 238000003672 processing method Methods 0.000 title claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 54
- 230000003647 oxidation Effects 0.000 claims abstract description 49
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 28
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 21
- 244000046052 Phaseolus vulgaris Species 0.000 claims abstract description 19
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims abstract description 19
- 239000012535 impurity Substances 0.000 claims abstract description 18
- 229960002163 hydrogen peroxide Drugs 0.000 claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 229960000935 dehydrated alcohol Drugs 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 238000001556 precipitation Methods 0.000 claims abstract description 9
- 238000005286 illumination Methods 0.000 claims abstract description 6
- 238000002203 pretreatment Methods 0.000 claims abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 235000019764 Soybean Meal Nutrition 0.000 claims description 5
- 239000004455 soybean meal Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- 230000009514 concussion Effects 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 20
- -1 hydroxyl radical free radical Chemical class 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 239000005416 organic matter Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 229920002521 macromolecule Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 235000020712 soy bean extract Nutrition 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 229960004756 ethanol Drugs 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 210000000498 stratum granulosum Anatomy 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
Abstract
The present invention relates to technical field of waste water processing, specifically disclose a kind of processing method of wastewater from chemical industry containing phenyl amines.The processing method of the phenyl amines wastewater from chemical industry, comprising the following steps: a, removal impurity: being added dregs of beans into phenyl amines wastewater from chemical industry, stand 2~5 days in processing pond, precipitation and separation and liquid；B, the liquid isolated in step a filtering and decoloration: is passed through into the filter layer that is made of active carbon particle layer and activated carbon fiber layers；C, oxidation pre-treatment: 1~5% dehydrated alcohol of wastewater volume is accounted for will pass through to be added in the liquid that step b is handled, adjusting pH value to 4~5；D, oxidation processes: while carrying out ultrasonic vibration and ultraviolet illumination to liquid, addition mass concentration is 35%~40% hydrogenperoxide steam generator, while being passed through ozone, continues 20~30min.The present invention can effectively remove amino benzenes compounds in phenyl amines wastewater from chemical industry, and removal rate reaches 99% or more, simple process, and process cycle is short.
Description
Technical field
The present invention relates to technical field of waste water processing more particularly to a kind of processing methods of wastewater from chemical industry containing phenyl amines.
Background technique
Amino benzenes compounds are important Organic Chemicals and fine-chemical intermediate, while being also serious pollution environment
With the harmful substance being detrimental to health.Numerous domestic dyestuff factory, chemical plant etc. can generate a large amount of phenyl amines in process of production
Waste water, the sometimes up to thousands of mg/L of mass concentration.Since aniline category matter is to the toxicity of ecologic biological, in industrial water drainage
It is required that strict control.Currently, China is all very low for the governance for reaching standard rate of Aniline categories, management task is very arduous.And
These high concentration aniline class waste water are more difficult to degrade, and biodegradability is lower,
Currently, the processing of amino benzene analog waste water mainly has biology, and electrolysis, the methods of chemistry, but the processing effect of most methods
The problems such as fruit is all undesirable, generally existing at high cost, secondary pollution is serious, discharge is not up to standard.And complicated process steps, cost
Height, complex process, long flow path, treatment effect is bad, removes insufficient, it is difficult to quickly and effectively reduce the benzene in processed waste water
Amine substance.
Summary of the invention
For the complex process of existing processing phenyl amines wastewater from chemical industry, long processing period, and amino benzenes compounds processing is not
The problems such as abundant, the present invention provide a kind of processing method of wastewater from chemical industry containing phenyl amines.
To achieve the above object of the invention, the embodiment of the present invention uses the following technical solution:
A kind of processing method of the wastewater from chemical industry containing phenyl amines, comprising the following steps:
A, remove impurity: dregs of beans is added into phenyl amines wastewater from chemical industry, stands 2~5 days in processing pond, precipitation and separation with
Liquid；
B, filtering and decoloration: the liquid isolated in step a is passed through by active carbon particle layer and activated carbon fiber layers group
At filter layer；
C, oxidation pre-treatment: the anhydrous of wastewater volume 0.2~0.5% is accounted for will pass through to be added in the liquid that step b is handled
Ethyl alcohol adjusts pH value to 4~5；
D, oxidation processes: carrying out ultrasonic vibration to liquid and while ultraviolet illumination, be added mass concentration be 35%~
40% hydrogenperoxide steam generator, while it being passed through ozone, continue 20~30min.
Compared with the existing technology, the processing method of phenyl amines wastewater from chemical industry provided by the invention, can be by phenyl amines chemical industry
99% or more amino benzenes compounds oxidation removal in waste water.In oxidation process, hydrogen peroxide itself has extremely strong oxidisability,
A large amount of aniline type organics can be removed, but its speed that decomposition generation hydroxyl radical free radical is used alone is slower, oxidation efficiency and oxygen
It is poor to change effect, and ozone is used in combination with hydrogen peroxide, is greatly improved oxidation efficiency, is added in aqueous hydrogen peroxide solution
Ozone, the speed for decomposing generation hydroxyl radical free radical can be dramatically speeded up, oxidation of the Aniline categories in ozone and hydrogen peroxide
100~200 times faster than single oxidation process of degradation rate in journey.It is added in wastewater oxidation system simultaneously micro anhydrous
Ethyl alcohol can make the oxidation of amino benzenes compounds more abundant, greatly improve the removal rate of Aniline categories.And it comes out of the stove in oxidation
In the process, it is handled in conjunction with ultrasonic vibration, the energy generated in the cavitation bubble collapse process of ultrasonic wave is enough to be broken in organic matter
Chemical bond, the hydroxyl radical free radical in the organic matter and waste water of disconnection occur rapidly oxidation reaction, change the harmful substance in water
At carbon dioxide, water and small organic molecule, entire oxidation process will not generate secondary pollution.
Preferably, the dregs of beans in the step a is soybean meal, and the additional amount of dregs of beans and the mass ratio of waste water are 1:500
~1000；Dregs of beans is added in waste water, dregs of beans is the bean cake left after soybean extract oil, can effectively precipitate the coloured huge sum of money in waste water
Belong to substance and absorbed portion impurity, after standing, precipitation and separation and liquid can effectively remove large granular impurity and suspended material.
Preferably, the filter layer in the step b is divided into three layers, is followed successively by activated carbon fiber layers, activity by filtering sequence
Charcoal stratum granulosum, activated carbon fiber layers；Remaining impurity and macromolecular substances, filter layer in waste water can be effectively filtered out to have both simultaneously
The effect of taste removal and decoloration can further purify waste water, facilitate subsequent oxidation processes.
Preferably, pH value is adjusted by sulfuric acid solution in the step c；PH value is to 4~5.
Preferably, the addition volume of hydrogen peroxide accounts for the 0.5%~1% of wastewater volume to be handled in the step d；It is ultraviolet
Photocatalysis Decomposition hydrogen peroxide generates hydroxyl radical free radical attack aniline molecule and captures hydrogen, and then phenyl amines pollutes in oxidized waste water
Object.
Preferably, the addition volume ratio of hydrogenperoxide steam generator and ozone is 1:5~10 in the step d；Ozone and peroxide
Change hydrogen to be used in combination, be greatly improved oxidation efficiency, the speed for decomposing generation hydroxyl radical free radical can be dramatically speeded up, phenyl amines pollution
100~200 times faster than single oxidation process of degradation rate of the object in the oxidation process of ozone and hydrogen peroxide.
Preferably, in the step d, the frequency of ultrasonic vibration is 10~50HZ, power 200W；The cavitation bubble of ultrasonic wave collapses
The energy generated during bursting is enough to be broken the chemical bond in organic matter, and the hydroxyl radical free radical in the organic matter and waste water of disconnection is fast
Oxidation reaction occurs for speed, and the harmful substance in water is made to be transformed into carbon dioxide, water and small organic molecule, improves oxidation rate
While, keep Aniline categories oxidation more abundant.
Preferably, in the step d, ultraviolet irradiation intensity is 5000~6000 μ W/cm2。
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
A kind of processing method of the wastewater from chemical industry containing phenyl amines, comprising the following steps:
A, it removes impurity: soybean meal, the additional amount of dregs of beans and the mass ratio of waste water being added into phenyl amines wastewater from chemical industry
For 1:500.2 days are stood in processing pond, precipitation and separation and liquid；Dregs of beans is the bean cake that leaves after soybean extract oil, cheap,
Processing cost is low, can effectively precipitate nonferrous heavy metal substance in waste water and absorbed portion impurity, after standing, precipitation and separation and
Liquid can effectively remove large granular impurity and suspended material.
B, filtering and decoloration: the liquid isolated in step a is passed through by active carbon particle layer and activated carbon fiber layers group
At filter layer；Filter layer is specifically divided into three layers, is followed successively by activated carbon fiber layers, active carbon particle layer, activity by filtering sequence
Carbon fibe layer, can effectively filter out remaining impurity and macromolecular substances in waste water, and filter layer has both taste removal and decoloration simultaneously
Effect, can further purify waste water, facilitate subsequent oxidation processes.
C, oxidation pre-treatment: being added the dehydrated alcohol for accounting for wastewater volume 0.2% to will pass through in the liquid that step b is handled,
PH value is adjusted to 4；The addition of micro dehydrated alcohol can promote the combination of amino benzenes compounds and hydroxyl radical free radical, make phenyl amines
Compound oxidation is more complete.
D, oxidation processes: while carrying out ultrasonic vibration and ultraviolet illumination to liquid, addition mass concentration is 35% mistake
Hydrogen peroxide solution, while it being passed through ozone, continue 20min；The frequency of ultrasonic vibration is 10HZ, and power is greater than 200W, ultrasonic wave
The energy generated in cavitation bubble collapse process is enough to be broken the chemical bond in organic matter, the hydroxyl in the organic matter and waste water of disconnection
Oxidation reaction occurs rapidly for free radical, and the harmful substance in water is made to be transformed into carbon dioxide, water and small organic molecule, improves
While oxidation rate, keep Aniline categories oxidation more abundant.Ultraviolet irradiation intensity is 5000 μ W/cm2；Wherein peroxidating
The addition volume of hydrogen accounts for the 0.5% of wastewater volume to be handled, and the addition volume of ozone accounts for the 2.5% of wastewater volume to be handled；It is smelly
Oxygen is used in combination with hydrogen peroxide, is greatly improved oxidation efficiency, and the speed for decomposing generation hydroxyl radical free radical can be dramatically speeded up, benzene
100~200 times faster than single oxidation process of degradation rate of the amine pollutant in the oxidation process of ozone and hydrogen peroxide.
By the detection to the amino benzenes compounds in the waste water after processing, the removal rate of amino benzenes compounds reaches
99.5%.
Embodiment 2
A, it removes impurity: soybean meal, the additional amount of dregs of beans and the mass ratio of waste water being added into phenyl amines wastewater from chemical industry
For 1:800.3 days are stood in processing pond, precipitation and separation and liquid；Dregs of beans is the bean cake that leaves after soybean extract oil, cheap,
Processing cost is low, can effectively precipitate nonferrous heavy metal substance in waste water and absorbed portion impurity, after standing, precipitation and separation and
Liquid can effectively remove large granular impurity and suspended material.
B, filtering and decoloration: the liquid isolated in step a is passed through by active carbon particle layer and activated carbon fiber layers group
At filter layer；Filter layer is specifically divided into three layers, is followed successively by activated carbon fiber layers, active carbon particle layer, activity by filtering sequence
Carbon fibe layer, can effectively filter out remaining impurity and macromolecular substances in waste water, and filter layer has both taste removal and decoloration simultaneously
Effect, can further purify waste water, facilitate subsequent oxidation processes.
C, oxidation pre-treatment: being added the dehydrated alcohol for accounting for wastewater volume 0.3% to will pass through in the liquid that step b is handled,
PH value is adjusted to 4.5；The addition of micro dehydrated alcohol can promote the combination of amino benzenes compounds and hydroxyl radical free radical, make aniline
Class compound oxidation is more complete.
D, oxidation processes: while carrying out ultrasonic vibration and ultraviolet illumination to liquid, addition mass concentration is 38% mistake
Hydrogen peroxide solution, while it being passed through ozone, continue 25min；The frequency of ultrasonic vibration is 30HZ, power 200W, the cavitation of ultrasonic wave
The energy generated in bubble collapse process is enough to be broken the chemical bond in organic matter, the hydroxyl free in the organic matter and waste water of disconnection
Oxidation reaction occurs rapidly for base, and the harmful substance in water is made to be transformed into carbon dioxide, water and small organic molecule, improves oxidation
While speed, keep Aniline categories oxidation more abundant.Ultraviolet irradiation intensity is 5000 μ W/cm2；Wherein hydrogen peroxide
Volume is added and accounts for the 0.8% of wastewater volume to be handled, the addition volume of ozone accounts for the 5% of wastewater volume to be handled；Ozone and mistake
Hydrogen oxide is used in combination, and is greatly improved oxidation efficiency, and the speed for decomposing generation hydroxyl radical free radical can be dramatically speeded up, and phenyl amines is dirty
Contaminate 100~200 times faster than single oxidation process of degradation rate of object in the oxidation process of ozone and hydrogen peroxide.
By the detection to the amino benzenes compounds in the waste water after processing, the removal rate of amino benzenes compounds reaches
99.8%.
Embodiment 3
A, it removes impurity: soybean meal, the additional amount of dregs of beans and the mass ratio of waste water being added into phenyl amines wastewater from chemical industry
For 1:1000.5 days are stood in processing pond, precipitation and separation and liquid；Dregs of beans is the bean cake left after soybean extract oil, and price is just
Preferably, processing cost is low, can effectively precipitate nonferrous heavy metal substance in waste water and absorbed portion impurity, and after standing, separation is heavy
Shallow lake and liquid, can effectively remove large granular impurity and suspended material.
B, filtering and decoloration: the liquid isolated in step a is passed through by active carbon particle layer and activated carbon fiber layers group
At filter layer；Filter layer is specifically divided into three layers, is followed successively by activated carbon fiber layers, active carbon particle layer, activity by filtering sequence
Carbon fibe layer, can effectively filter out remaining impurity and macromolecular substances in waste water, and filter layer has both taste removal and decoloration simultaneously
Effect, can further purify waste water, facilitate subsequent oxidation processes.
C, oxidation pre-treatment: being added the dehydrated alcohol for accounting for wastewater volume 0.5% to will pass through in the liquid that step b is handled,
PH value is adjusted to 5；The addition of micro dehydrated alcohol can promote the combination of amino benzenes compounds and hydroxyl radical free radical, make phenyl amines
Compound oxidation is more complete.
D, oxidation processes: while carrying out ultrasonic vibration and ultraviolet illumination to liquid, addition mass concentration is 40% mistake
Hydrogen peroxide solution, while it being passed through ozone, continue 30min；The frequency of ultrasonic vibration is 50HZ, power 200W, the cavitation of ultrasonic wave
The energy generated in bubble collapse process is enough to be broken the chemical bond in organic matter, the hydroxyl free in the organic matter and waste water of disconnection
Oxidation reaction occurs rapidly for base, and the harmful substance in water is made to be transformed into carbon dioxide, water and small organic molecule, improves oxidation
While speed, keep Aniline categories oxidation more abundant.Ultraviolet irradiation intensity is 6000 μ W/cm2；Wherein hydrogen peroxide
Volume is added and accounts for the 1% of wastewater volume to be handled, the addition volume of ozone accounts for the 10% of wastewater volume to be handled；Ozone and peroxide
Change hydrogen to be used in combination, be greatly improved oxidation efficiency, the speed for decomposing generation hydroxyl radical free radical can be dramatically speeded up, phenyl amines pollution
100~200 times faster than single oxidation process of degradation rate of the object in the oxidation process of ozone and hydrogen peroxide.
By the detection to the amino benzenes compounds in the waste water after processing, the removal rate of amino benzenes compounds reaches
99.8%.
Technical solution in order to better illustrate the present invention is done by comparative example and the embodiment of the present invention into one further below
The comparison of step.
Comparative example 1
The acetone for accounting for wastewater volume 0.2% will be added in the step c of the processing method of phenyl amines wastewater from chemical industry in embodiment 1
Instead of dehydrated alcohol, other schemes are same as Example 1.
By the detection to the amino benzenes compounds in the waste water after processing, the removal rate of amino benzenes compounds is
93%.
Comparative example 2
The ether for accounting for wastewater volume 0.2% will be added in the step c of the processing method of phenyl amines wastewater from chemical industry in embodiment 1
Instead of dehydrated alcohol, other schemes are same as Example 1.Pass through the inspection to the amino benzenes compounds in the waste water after processing
It surveys, the removal rate of amino benzenes compounds is 91%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of processing method of wastewater from chemical industry containing phenyl amines, it is characterised in that: the following steps are included:
A, it removes impurity: dregs of beans is added into phenyl amines wastewater from chemical industry, stands 2~5 days in processing pond, precipitation and separation and liquid
Body；
B, filtering and decoloration: by the liquid isolated in step a by being made of active carbon particle layer and activated carbon fiber layers
Filter layer；
C, oxidation pre-treatment: being added the dehydrated alcohol for accounting for wastewater volume 0.2~0.5% to will pass through in the liquid that step b is handled,
PH value is adjusted to 4~5；
D, oxidation processes: while carrying out ultrasonic vibration and ultraviolet illumination to liquid, it is 35%~40% that mass concentration, which is added,
Hydrogenperoxide steam generator, while it being passed through ozone, continue 20~30min.
2. a kind of processing method of the wastewater from chemical industry containing phenyl amines as described in claim 1, it is characterised in that: in the step a
Dregs of beans be soybean meal, the mass ratio of the additional amount of dregs of beans and waste water is 1:500~1000.
3. a kind of processing method of the wastewater from chemical industry containing phenyl amines as described in claim 1, it is characterised in that: in the step b
Filter layer be divided into three layers, be followed successively by activated carbon fiber layers, active carbon particle layer and activated carbon fiber layers by filtering sequence.
4. a kind of processing method of the wastewater from chemical industry containing phenyl amines as described in claim 1, it is characterised in that: in the step c
PH value is adjusted by sulfuric acid solution.
5. a kind of processing method of the wastewater from chemical industry containing phenyl amines as described in claim 1, it is characterised in that: peroxide in step d
The addition volume for changing hydrogen accounts for the 0.5%~1% of wastewater volume to be handled.
6. a kind of processing method of the wastewater from chemical industry containing phenyl amines as described in claim 1, it is characterised in that: peroxide in step d
The addition volume ratio for changing hydrogen solution and ozone is 1:5~10.
7. a kind of processing method of the wastewater from chemical industry containing phenyl amines as described in claim 1, it is characterised in that: in step d, ultrasound
The frequency of concussion is 10~50HZ, and power is greater than 200W.
8. a kind of processing method of the wastewater from chemical industry containing phenyl amines as described in claim 1, it is characterised in that: ultraviolet in step d
Line exposure intensity is 5000~6000 μ W/cm2。
Priority Applications (1)
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| CN115893709A (en) * | 2022-10-19 | 2023-04-04 | 燕山大学 | Method for treating aniline wastewater by ozone advanced oxidation method based on electric field induction |
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| CN109607895B (en) | 2021-10-08 |
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