CN110092505A - A kind of method of Concave-convex clay rod processing wastewater containing phenol - Google Patents
A kind of method of Concave-convex clay rod processing wastewater containing phenol Download PDFInfo
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- CN110092505A CN110092505A CN201910443099.5A CN201910443099A CN110092505A CN 110092505 A CN110092505 A CN 110092505A CN 201910443099 A CN201910443099 A CN 201910443099A CN 110092505 A CN110092505 A CN 110092505A
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- concave
- clay rod
- convex clay
- wastewater containing
- containing phenol
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000004927 clay Substances 0.000 title claims abstract description 52
- 239000002351 wastewater Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 28
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000002253 acid Substances 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000000706 filtrate Substances 0.000 claims abstract description 9
- 229910001868 water Inorganic materials 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000003513 alkali Substances 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000002211 ultraviolet spectrum Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012028 Fenton's reagent Substances 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 239000005416 organic matter Substances 0.000 abstract description 3
- 238000010790 dilution Methods 0.000 abstract description 2
- 239000012895 dilution Substances 0.000 abstract description 2
- 229960002163 hydrogen peroxide Drugs 0.000 description 20
- 239000000243 solution Substances 0.000 description 17
- 229960000892 attapulgite Drugs 0.000 description 16
- 229910052625 palygorskite Inorganic materials 0.000 description 16
- 238000003760 magnetic stirring Methods 0.000 description 10
- 238000012512 characterization method Methods 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 238000013019 agitation Methods 0.000 description 5
- 229960000935 dehydrated alcohol Drugs 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 229910017135 Fe—O Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- RRTCFFFUTAGOSG-UHFFFAOYSA-N benzene;phenol Chemical compound C1=CC=CC=C1.OC1=CC=CC=C1 RRTCFFFUTAGOSG-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- -1 oil plant Chemical compound 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000010457 zeolite Substances 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
- C02F1/66—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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Abstract
The present invention provides a kind of methods of Concave-convex clay rod processing wastewater containing phenol.This method is first adjusted the pH value of wastewater containing phenol to 1-10 using acid or alkali, and Concave-convex clay rod is then added, continuously adds hydrogen peroxide, is stirred to react, filters, and is reused after obtained Concave-convex clay rod drying, filtrate is the waste water handled well.The efficient degradation of wastewater containing phenol can be realized using the high characteristic of ecosystem in Linze, Gansu, China Concave-convex clay rod iron-content using the method for Fenton reagent in the present invention in the unlimited system for being exposed to air.Fe in reaction process, in Concave-convex clay rod2+With Fe3+High activity OH is generated with hydrogen peroxide, OH and organic matter phenol, which react, generates CO2And H2O realizes degradation of phenol.Concave-convex clay rod used in entire reaction process needs not move through any processing.Handled wastewater containing phenol can reach national emission standard direct emission after dilution.
Description
Technical field:
The invention belongs to technical field of waste water processing, in particular to a kind of side of Concave-convex clay rod processing wastewater containing phenol
Method.
Background technique:
The pollution of water environment, especially organic contamination have become a global environmental problem, organic contamination
Severity, pollution property and the harm to biology and the mankind are all continually changing with society and industrial expansion.Closely
Nian Lai, the pollution and its improvement of hardly degraded organic substance become a hot spot of various countries researcher concern.Organic contamination difficult to degrade
Object is that one kind is more toxic, is difficult to be degraded by microorganisms or be degraded by microorganisms speed slowly and decomposes halfway organic matter, than
Such as halogenated organic matters, surfactant, nitro compound, heterocyclic compound, phenolic compound, polycyclic aromatic hydrocarbon type organic,
Toxic action can all much wherein be generated to the mankind and biology, it is difficult to degrade organic such as three-induced effect (carcinogenic, teratogenesis and mutagenesis)
The harm of object constitutes human health and the ecosystem and seriously threatens.Therefore, the dirt of hardly degraded organic substance how is administered
Dye is always the important subject of field of environment protection.
Phenol wastewater source is very extensive, and many enterprises are the peculiar pollution sources of phenol, such as oil plant, chemical plant, resin processing plant
And coke-oven plant etc..Processing for phenol wastewater, it is biochemical treatment process that enterprise, which uses at most, at present, however many phenol wastewater
Biological degradability it is poor, some also have bio-toxicity, so that endobacillary enzyme is gone bad and lose activity, eventually lead to biological treatment
Effect it is poor.And the costs of investment such as other methods such as extraction, absorption method are high, enterprise is difficult to bear.Therefore, research has wide
The phenolic wastewater treatment method of general application value is the urgent task put in face of environmental worker.Wen Cheng et al.
[Environmental Protection of Chemical Industry (2018) 38,282-287] is at Ca (OH)2System
In use O3Degradation of phenol waste water, I.Polaert et al. [Chemical Engineering Science (2002) 57,1585-
1590) phenolic waste water, Tao Wang et al. [Chemosphere (2016)] are handled in the way of activated carbon adsorption and oxidation
155,94-99] phenolic waste water, Laura G.Cordova Villegas et al. are handled using film electricity bioreactor (MEBR)
[Curr Pollution Rep (2016) 2,157-167] utilizes electrochemical treatments phenolic waste water.
Fenton reagent (i.e. H2O2+Fe2+) pass through H2O2And Fe2+Effect generates OH, makes it have extremely strong energy of oxidation
Power, the oxidation processes of the organic wastewater hard to work especially suitable for bio-refractory or general chemical oxidation, thus Fenton
The application of reagent in the treatment of waste water acquires a special sense.
Attapulgite is as " thousand with soil ", due to good adsorptivity, rheological characteristic, carrier-mediated, catalytic, plastic
Property, the performances such as salt-resistance, water imbibition, be widely used in inorganic chemical industry, building materials industry, agricultural, edible oil processing, medicine and other fields
Etc., the reserves of the attapulgite of coming from L inze County have reached 9.02 hundred million tons, account for the 63% of whole world proven reserve, surely
It ranks first in the world.And by measurement, ecosystem in Linze, Gansu, China attapulgite iron-content is very high, and that give us to be combined with attapulgite
The inspiration of Fenton reagent processing phenol organic wastewater.
Summary of the invention:
It is of the present invention the object of the present invention is to provide a kind of method of simple economy efficient degradation wastewater containing phenol
Biodegrading process is Fenton reagent method.This method uses Concave-convex clay rod, preferably the Concave-convex clay rod raw ore of ecosystem in Linze, Gansu, China
Powder utilizes H2O2With the Fe in Concave-convex clay rod2+Reaction generates the phenol in OH Heterogeneous oxidation waste water.
The method of Concave-convex clay rod processing wastewater containing phenol of the present invention are as follows: use acid or alkali by wastewater containing phenol
PH value adjust to 1-10, Concave-convex clay rod is then added, continuously adds hydrogen peroxide, is stirred to react 5min-40min, filter,
It is reused after obtained Concave-convex clay rod drying, filtrate is the waste water handled well.
The acid is sulfuric acid.
The alkali is sodium hydroxide.
The pH value of the wastewater containing phenol is adjusted to 3.
The wastewater containing phenol 100mL, the additive amount of phenol concentration 10-500ppm, Concave-convex clay rod are
0.01g-3g, the additive amount of hydrogen peroxide are 0.05-3mL.
The concentration of the hydrogen peroxide is 25-35wt%.
The temperature being stirred to react is 10-40 DEG C.
The drying temperature is 50-70 DEG C.
The filtrate sodium hydroxide or sulphur acid for adjusting pH is 10, is utilized respectively ultraviolet spectra absorption apparatus and COD measurement
Instrument detection.
The present invention utilizes the high spy of ecosystem in Linze, Gansu, China Concave-convex clay rod iron-content using the method for Fenton reagent
Property, the efficient degradation of wastewater containing phenol can be realized in the unlimited system for being exposed to air.In reaction process, attapulgite is viscous
Fe in soil2+With Fe3+High activity OH is generated with hydrogen peroxide, OH and organic matter phenol, which react, generates CO2And H2O,
Realize degradation of phenol.Concave-convex clay rod used in entire reaction process needs not move through any processing.Handled contains benzene
Phenol waste water can reach national emission standard direct emission after dilution.This method is simple and easy to do, is expected to realize factory's industrialization.
Detailed description of the invention:
Fig. 1 is scanning electron microscope (SEM) characterization of Concave-convex clay rod in embodiment 1-5.
Fig. 2 is transmission electron microscope (TEM) characterization of Concave-convex clay rod in embodiment 1-5.
Fig. 3 is X-ray diffraction (XRD) characterization of Concave-convex clay rod in embodiment 1-5.
Fig. 4 is the infrared spectroscopy of Concave-convex clay rod in embodiment 1-5.
Fig. 5 is the Fe ion characterization in the X-ray photoelectron spectroscopic analysis (XPS) of Concave-convex clay rod in embodiment 1-5.
Fig. 6 is the removal rate experimental result of Concave-convex clay rod Pyrogentisinic Acid and COD at different pH in embodiment 1.
Fig. 7 is the removal rate experimental result of Concave-convex clay rod Pyrogentisinic Acid and COD in quality difference in embodiment 2.
Fig. 8 is that Concave-convex clay rod removal rate of Pyrogentisinic Acid and COD under the amount of different hydrogen peroxide is tested in embodiment 3
As a result.
Fig. 9 be in embodiment 4 Concave-convex clay rod in the removal rate experimental result of differential responses time Pyrogentisinic Acid and COD.
Figure 10 be in embodiment 5 Concave-convex clay rod in the removal rate experimental result of differential responses temperature Pyrogentisinic Acid and COD.
Specific embodiment:
Embodiment 1
A. 250ml (10) beaker and magneton (10) are cleaned and is dried with deionized water and dehydrated alcohol.It uses respectively
Graduated cylinder, which accurately measures 100ml and prepared and be diluted to the simulation phenolic waste water of 100ppm, to be added in beaker.Magneton is added
The moderate-speed mixer on magnetic stirring apparatus.
B. the pH value of solution in 10 beakers 1,2,3,4,5,6,7,8,9,10 are transferred to respectively with pH reagent (to utilize (as schemed)
Sulfuric acid and sodium hydroxide finely tune pH).Totally 10 parts of Concave-convex clay rod 0.5g are weighed respectively, are added separately to step A and are being stirred
Beaker in.10 parts of 0.5ml 30wt% hydrogenperoxide steam generators are accurately measured with liquid-transfering gun rapidly and are added separately to above-mentioned beaker
In.Temperature is maintained at 20 DEG C.
C. after being stirred to react 15min, magnetic stirring apparatus, filtering, weight after 60 DEG C of obtained Concave-convex clay rod drying are closed
Multiple to use, being adjusted to each filtrate pH with sodium hydroxide solution and sulfuric acid solution is 10, is measured using ultraviolet spectra absorption apparatus and COD
Instrument measures respectively.
Through measuring, the removal rate of phenol and COD reach highest when pH is 3, and respectively 95% and 92%.
Embodiment 2
A. 250ml (7) beaker and magneton (7) are cleaned and is dried with deionized water and dehydrated alcohol.Dosage respectively
Cylinder is accurate to measure 100ml and has prepared and be diluted to the simulation phenolic waste water of 100ppm and be added in beaker.Magneton is added to exist
Moderate-speed mixer on magnetic stirring apparatus.
B. the pH value of solution in 7 beakers is adjusted to 3 (finely tuning pH using sulfuric acid and sodium hydroxide) with pH reagent.It weighs respectively
Concave-convex clay rod 0.05,0.1,0.5,1,1.5,2, totally 7 parts of 3g (as schemed), are added in the beaker that step A is being stirred.It is fast
Speed accurately measures 7 parts of 0.5ml 30wt% hydrogenperoxide steam generators with liquid-transfering gun and is added separately in above-mentioned beaker.Temperature is maintained at
20℃。
C.15min after, magnetic stirring apparatus is closed, filtering is reused after 60 DEG C of obtained Concave-convex clay rod drying, used
It is 10 that sodium hydroxide solution, which adjusts each filtrate pH, is measured respectively using ultraviolet spectra absorption apparatus and COD measuring instrument.
Through measuring, phenol and COD removal rate reach highest, respectively 95% He when the quality of Concave-convex clay rod is 0.5g
92%.
Embodiment 3
A. 250ml (7) beaker and magneton (7) are cleaned and is dried with deionized water and dehydrated alcohol.Dosage respectively
Cylinder is accurate to measure 100ml and has prepared and be diluted to the simulation phenolic waste water of 100ppm and be added in beaker.Magneton is added to exist
Moderate-speed mixer on magnetic stirring apparatus.
B. the pH value of solution in 7 beakers is adjusted to 3 (finely tuning pH using sulfuric acid and sodium hydroxide) with pH reagent.It weighs respectively
It totally 7 parts of Concave-convex clay rod 0.5g, is added in the beaker that step A is being stirred.Rapidly with liquid-transfering gun correct amount 0.05,0.5,
1,1.5,2,2.5, totally 7 parts of 3ml (as schemed) 30wt% hydrogenperoxide steam generator is added separately in above-mentioned beaker.Temperature is maintained at 20
℃。
C.15min after, magnetic stirring apparatus is closed, filtering is reused after 60 DEG C of obtained Concave-convex clay rod drying, used
It is 10 that sodium hydroxide solution, which adjusts each filtrate pH, is measured respectively using ultraviolet spectra absorption apparatus and COD measuring instrument.
Through measuring, the removal rate of phenol and hydrogen peroxide increases as the amount of hydrogen peroxide increases, and examines for economic factor
Consider, recommending the volume of hydrogen peroxide is 0.5-1ml, and the removal rate of phenol and COD can reach 90% at this time.
Embodiment 4
A. 250ml (7) beaker and magneton (7) are cleaned and is dried with deionized water and dehydrated alcohol.Dosage respectively
Cylinder is accurate to measure 100ml and has prepared and be diluted to the simulation phenolic waste water of 100ppm and be added in beaker.Magneton is added to exist
Moderate-speed mixer on magnetic stirring apparatus.
B. the pH value of solution in 7 beakers is adjusted to 3 (finely tuning pH using sulfuric acid and sodium hydroxide) with pH reagent.It weighs respectively
It totally 7 parts of Concave-convex clay rod 0.5g, is added in the beaker that step A is being stirred.7 parts are accurately measured with liquid-transfering gun rapidly
0.5ml 30wt% hydrogenperoxide steam generator is added separately in above-mentioned beaker.Temperature is maintained at 20 DEG C.
C. the reaction time be 0,5,10,15,20,30,40min totally 7 periods (as schemed), close magnetic stirring apparatus, mistake
Filter is reused after 60 DEG C of obtained Concave-convex clay rod drying, and being adjusted to each filtrate pH with sodium hydroxide solution is 10, is utilized
Ultraviolet spectra absorption apparatus and COD measuring instrument measure respectively.
Through measuring, the removal rate of phenol and COD increase as time increases, it is contemplated that industrial production, each reaction
Time is advisable for 15min, and the removal rate of phenol and COD are respectively 95% and 92% at this time.
Embodiment 5
A. 250ml (8) beaker and magneton (8) are cleaned and is dried with deionized water and dehydrated alcohol.Dosage respectively
Cylinder is accurate to measure 100ml and has prepared and be diluted to the simulation phenolic waste water of 100ppm and be added in beaker.Magneton is added to exist
Moderate-speed mixer on magnetic stirring apparatus.
B. the pH value of solution in 10 beakers is transferred to 3 (as schemed) with pH reagent (sulfuric acid and sodium hydroxide finely tune pH).Respectively
Totally 10 parts of Concave-convex clay rod 0.5g are weighed, is added in the beaker that step A is being stirred.10 are accurately measured with liquid-transfering gun rapidly
Part 0.5ml 30wt% hydrogenperoxide steam generator is added separately in above-mentioned beaker.Temperature is transferred to 10 respectively, 15,20,25,30,35,
40,45 DEG C of totally 8 temperature (as schemed).
C.15min after, magnetic stirring apparatus is closed, filtering is reused after 60 DEG C of obtained Concave-convex clay rod drying, used
It is 10 that sodium hydroxide solution and sulfuric acid solution, which are adjusted to each filtrate pH, is surveyed respectively using ultraviolet spectra absorption apparatus and COD measuring instrument
Amount.
Through measuring, phenol and COD removal rate reach highest when temperature is 20 DEG C, and respectively 95% and 92%.
The characterization of appearance structure is carried out to above-mentioned Concave-convex clay rod and handles the performance characterization result of phenolic waste water:
As seen from Figure 1, attapulgite is in rodlike, is attached to above some impurity, width only has several nanometers, and length is about several
Hundred nanometers are differed to several microns.
Little particle of black is Fe in Fig. 22O3。
X-ray diffraction (XRD) characterization of ecosystem in Linze, Gansu, China attapulgite, diffraction maximum and attapulgite standard x RD in Fig. 3
Card (JCPDF02-0018) is consistent, but due to being that concave convex rod stone ore soil is impure, there is apparent impurity diffraction maximum.
In Fig. 4 3618 be-OH stretching vibration peak, 3436 be Coordinated Water (in conjunction with water), and 1633 are
Zeolitic Water (zeolite water) 1029 be Si-O-Si asymmetry stretching vibration, 797 and 471 be Si-O midplane extrusion and
Bending vibration, micro- peak between 528-797 are the Fe above ATP2O3Fe-O vibration peak.
It is simulated by XPS, as can be seen from Figure 5 ferro element is stored in attapulgite in the form of divalent and trivalent.
Fig. 6 is addition 100ml 100ppm phenol solution, attapulgite 0.5g, pH 1-10, hydrogen peroxide in beaker
Amount be 0.5ml, temperature be 20 DEG C, magnetic agitation mixing time be 15min, probe into size Pyrogentisinic Acid's waste water removal rate of pH
It influences, when pH is 3, removal rate reaches maximum value.
Fig. 7 is addition 100ml 100ppm phenol solution, attapulgite 0.05-3g, pH 3, hydrogen peroxide in beaker
Amount be 0.5ml, temperature be 20 DEG C, the magnetic agitation time be 15min, probe into amount Pyrogentisinic Acid's waste water removal rate of attapulgite
It influences, when the quality of attapulgite is 0.5g, removal rate reaches maximum value.
Fig. 8 is addition 100ml 100ppm phenol solution, attapulgite 0.5g, pH 3, the amount of hydrogen peroxide in beaker
0.1-3.5ml, temperature are 20 DEG C, and the magnetic agitation time is 15min, probes into the shadow of amount Pyrogentisinic Acid's waste water removal rate of hydrogen peroxide
It rings, with the increase of the amount of hydrogen peroxide, removal rate is gradually increased, but considers economic factor, it is recommended to use 0.5-1ml peroxidating
Hydrogen.
Fig. 9 is addition 100ml 100ppm phenol solution, attapulgite 0.5g, pH 3, the amount of hydrogen peroxide in beaker
For 0.5ml, temperature is 20 DEG C, and the magnetic agitation time is 15min, probes into the shadow of differential responses time Pyrogentisinic Acid's waste water removal rate
It rings, as time increases, removal rate is gradually increased, it is contemplated that industrial production, time control in 15min.
Figure 10 is that 100ml 100ppm phenol solution is added in beaker, attapulgite 0.5g, pH 3, hydrogen peroxide
0.5ml is measured, temperature is 10 DEG C -45 DEG C, and the magnetic agitation time is 15min, probes into differential responses temperature Pyrogentisinic Acid's waste water removal rate
Influence, temperature be 20 DEG C when, removal rate reaches maximum value.Also it is suitble to industrial temperature.
Claims (9)
1. a kind of method of Concave-convex clay rod processing wastewater containing phenol, which is characterized in that the method are as follows: will using acid or alkali
The pH value of wastewater containing phenol is adjusted to 1-10, and Concave-convex clay rod is then added, continuously adds hydrogen peroxide, is stirred to react 5min-
40min, filtering are reused after obtained Concave-convex clay rod drying, and filtrate is the waste water handled well.
2. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that the acid
For sulfuric acid.
3. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that the alkali
For sodium hydroxide.
4. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that described contains
The pH value of phenolic waste water is adjusted to 3.
5. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that described contains
Phenolic waste water 100mL, phenol concentration 10-500ppm, the additive amount of Concave-convex clay rod are 0.01g-3g, the addition of hydrogen peroxide
Amount is 0.05-3mL.
6. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that described is double
The concentration of oxygen water is 25-35wt%.
7. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that described stirs
The temperature for mixing reaction is 10-40 DEG C.
8. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that the baking
Dry temperature is 50-70 DEG C.
9. the method for Concave-convex clay rod processing wastewater containing phenol according to claim 1, which is characterized in that the filter
Liquid sodium hydroxide or sulphur acid for adjusting pH are 10, are utilized respectively ultraviolet spectra absorption apparatus and the detection of COD measuring instrument.
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Application publication date: 20190806 |